CN116697947A - Full-automatic self-adaptive measuring device and measuring method for left and right shells of differential mechanism - Google Patents
Full-automatic self-adaptive measuring device and measuring method for left and right shells of differential mechanism Download PDFInfo
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- CN116697947A CN116697947A CN202310566431.3A CN202310566431A CN116697947A CN 116697947 A CN116697947 A CN 116697947A CN 202310566431 A CN202310566431 A CN 202310566431A CN 116697947 A CN116697947 A CN 116697947A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 title claims description 77
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 230000003068 static effect Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 230000003044 adaptive effect Effects 0.000 claims description 11
- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 244000089486 Phragmites australis subsp australis Species 0.000 claims 1
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- 238000003466 welding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
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- 238000010586 diagram Methods 0.000 description 3
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- 238000007599 discharging Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/14—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Life Sciences & Earth Sciences (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The application relates to a full-automatic self-adaptive measuring device for a left casing and a right casing of a differential and a measuring method thereof, wherein a centering supporting column centers the first casing or the second casing, a stand column is used for forming a support from top to bottom through a reference surface, and a static measuring assembly, a movable measuring assembly and a lifting measuring assembly are combined, so that not only is the measurement of parameters consistent with the first casing and the second casing, such as the diameter of an inner spherical surface and the like, but also the measurement of parameters inconsistent with the first casing and the second casing, such as the size of a flange and the like, is realized, thereby being compatible and suitable for the left casing and the right casing of the differential, and realizing the size detection of the differential based on the same measuring reference, greatly ensuring the assembly precision and the reliability of the differential, and also effectively ensuring the measuring efficiency and the measuring effect.
Description
Technical Field
The application relates to the technical field of differential mechanism measuring equipment, in particular to a full-automatic self-adaptive measuring device and a measuring method for left and right shells of a differential mechanism.
Background
The left shell and the right shell of the truck differential mechanism are assembled in the relation of the parts, and the sizes of the parts are consistent, particularly the sizes of balls in the shells; there are, however, sizes that are not exactly identical, such as flange parameters specific to one of the housings.
The existing measuring means are mostly simple manual measuring tools, larger measuring errors exist, and particularly for the size of the ball in the shell, the measuring errors of the simple measuring tools are large, and the position degree of the ball center in the shell cannot be effectively measured due to the fact that the left shell and the right shell are respectively measured. The position degree is an important parameter for the differential mechanism, and directly influences the assembly accuracy of the differential mechanism.
In the prior art, if the measurement error is required to be reduced, the measurement accuracy is improved, and the position of the sphere center in the shell is measured, only high value-added equipment such as a three-coordinate measuring machine can be used. However, three-coordinate gauges have high human dependence and low efficiency.
Disclosure of Invention
The application aims at the defects in the prior art, and provides a full-automatic self-adaptive measuring device and a measuring method for a left and right casing of a differential mechanism, which are reasonable in structure, so that the full-automatic self-adaptive measuring device is compatible with the left and right casings of the differential mechanism, and based on the same measuring standard, the size detection of the differential mechanism is realized, the assembly precision and reliability of the differential mechanism are greatly ensured, and the measuring efficiency and the measuring effect are also effectively ensured.
The technical scheme adopted by the application is as follows:
the full-automatic self-adaptive measuring device for the left and right shells of the differential mechanism comprises a working platform, wherein a centering supporting column is arranged on the working platform, a plurality of stand columns are arranged on the working platform which is positioned on the periphery outside the centering supporting column at intervals, the differential mechanism shell is formed by assembling a first shell and a second shell which are of hemispherical structures in a two-phase manner, the first shell or the second shell is sleeved on the centering supporting column through a main bearing hole, and the bottom surface of the first shell or the second shell is supported on the stand columns to form a datum plane; the working platform positioned outside the circumferential direction of the centering support column is also provided with a static measuring component, a movable measuring component and a lifting measuring component which are all even numbers symmetrically distributed relative to the centering support column; the outer diameter size of the embedded structure between the first shell and the second shell and the inner spherical diameter size of the differential shell are measured by a static measuring assembly, the inner diameter size of the embedded structure between the first shell and the second shell is measured by a lifting measuring assembly, and the movable measuring assembly measures the diameter size of the flange in the middle of the differential shell and the distance between the flange and the reference surface.
As a further improvement of the above technical scheme:
the top surface of the upright post and the supporting surface of the centering supporting post are respectively provided with a sensor facing the differential mechanism shell; after the movable measuring assembly moves horizontally towards the differential case in place, the outer circumferential surfaces of the pair of flanges are valued by the horizontally-oriented detecting sensors, and the top surfaces of the pair of flanges are valued by the vertically-downward-oriented detecting sensors.
The structure of the movable measuring assembly is as follows: the device comprises a support arranged on a working platform, wherein a horizontal plate is welded at the top of the support to form a whole, a vertical plate and a moving cylinder are arranged at the front and back of the top surface of the horizontal plate at intervals, a moving plate is arranged at the moving end of the moving cylinder, the moving plate moves towards the vertical plate, adaptive guide pins and pin seats are arranged on the opposite side surfaces of the moving plate and the vertical plate, and transverse grooves for the guide pins to be assembled are formed in the pin seats; and two groups of first detection sensors facing the flange horizontally and vertically are arranged on the moving plate.
The lifting type measuring assembly and the static measuring assembly comprise a measuring power mechanism;
the structure of the measuring power mechanism is as follows: the device comprises a floating plate and a fixed plate which are arranged in parallel at an upper and lower interval, wherein reeds are respectively and jointly arranged at two ends of the floating plate and the fixed plate; the top surface of the fixed plate is provided with a connecting block, the bottom surface of the floating plate is provided with a vertical block, a needle-shaped air cylinder horizontally penetrates through the connecting block, and the output end of the needle-shaped air cylinder is fixed with the vertical block; the horizontal through joint block is also provided with a second detection sensor, the output end of the second detection sensor faces the vertical block, and the vertical block is provided with a measurement hard point opposite to the output end of the second detection sensor;
the measuring power mechanism drives the lifting type measuring assembly and the measuring point in the static measuring assembly to reset through the floating plate, the measuring point is contacted with the first wall surface of the shell or the second wall surface of the shell, and the measuring value is obtained through the position change of the measuring point of the second detecting sensor.
The structure of the lifting type measuring assembly is as follows: the device comprises a bottom plate arranged on a working platform, wherein a lifting cylinder is arranged on the top surface of the bottom plate, the output end of the lifting cylinder faces upwards and is provided with a lifting plate, a measuring power mechanism is arranged on the top surface of the lifting plate, a connecting rod is arranged on a floating plate at the top of the measuring power mechanism, the end part of the connecting rod extends towards a differential case and is provided with a measuring rod, the measuring rod extends to the inner side of the differential case, and the outer side surface of the measuring rod is provided with a measuring point; the vertical seats are arranged on the bottom plates at two sides of the lifting cylinder, the top surfaces of the lifting plates at two sides of the measuring power mechanism are provided with pin groups, each pin group comprises three pins which are distributed in a triangular structure, and the side surfaces of the vertical seats, facing the pin groups, are provided with limiting pieces which correspond to the three pins one by one; wherein the end parts of the two limiting parts are provided with the same-direction long grooves, and the end parts of the other limiting parts are provided with concave round holes for pin assembly.
The structure of the static measurement assembly is as follows: the device comprises a support arranged on a working platform, a measuring power mechanism is arranged on the top surface of the support, a connecting seat is arranged on a floating plate at the top of the measuring power mechanism, the connecting seat extends towards a differential mechanism shell and is provided with a support arm, and a measuring point is arranged at the end part of the support arm.
In the static measuring assembly for measuring the outer diameter size, a support arm is positioned outside a differential shell, and a line contact mode is formed between a measuring point at the end part of the support arm and the differential shell; in the static measuring assembly for measuring the diameter of the inner spherical surface, a support arm extends into the differential mechanism shell, and a point contact mode is adopted between a measuring point at the end part of the support arm and the differential mechanism shell.
The device also comprises a receiving mechanism, wherein the receiving mechanism supports the shell I or the shell II above to the upright post and the centering supporting post in a downward moving way.
The concrete structure of the material receiving mechanism is as follows: the lifting device comprises a plurality of guide posts which penetrate through a working platform up and down and are assembled through guide sleeves, lifting frames are commonly installed at the bottom ends of the guide posts, and the lifting frames are driven by lifting power below to drive the lifting frames to move up and down relative to the working platform; the top ends of the guide posts are commonly provided with a supporting ring, the supporting ring is concentrically arranged outside the circumferential direction of the centering supporting post, and the top surface of the supporting ring is provided with a plurality of protruding pins at intervals.
The differential mechanism comprises a differential mechanism shell, a differential mechanism, a first self-adaptive measuring device, a second self-adaptive measuring device, a first self-adaptive measuring device and a second self-adaptive measuring device, wherein the differential mechanism shell is formed by assembling a first shell and a second shell which are of hemispherical structures, the edge of the inner wall surface of the first shell extends outwards to form a flange, and the edge of the inner wall surface of the second shell is inwards concave to form a notch matched with the flange in an embedded manner; a central hole is formed in the joint surface of the first shell and the second shell along the diameter direction, and the outer hole of the central hole on the first shell and the outer hole of the central hole on the second shell extend outwards to form a main bearing hole; the second opening end of the shell extends outwards to form a flange;
the measuring method for the left and right shells of the differential mechanism comprises the steps of measuring the first shell and the second shell respectively;
when the first shell is measured, the first shell is sleeved on the centering support column through the center hole in a centering way, the main bearing hole faces upwards, and the first bottom surface of the first shell is supported on the upright column to form a reference surface; measuring and obtaining the inner spherical surface sizes at a plurality of positions on the shell by using a static measuring assembly, and the outer diameter sizes of the flanges;
when the second shell is measured, the second shell is sleeved on the centering support column through the center hole in a centering way, the main bearing hole faces upwards, and the bottom surface of the second shell is supported on the upright column to form a reference surface; measuring and obtaining the inner spherical surface sizes at a plurality of positions on the second shell by using a static measuring assembly; the lifting type measuring component ascends to measure the diameter of the two notches of the shell; and the movable measuring component moves towards the second shell to obtain the diameter size of the flange and the distance between the top surface of the flange and the reference surface.
The beneficial effects of the application are as follows:
the application has compact and reasonable structure and convenient operation, the centering support column centers the first shell or the second shell, the upright post supports the first shell or the second shell from top to bottom through the reference surface, and the static measuring component, the movable measuring component and the lifting measuring component are combined, so that the measurement of parameters which are consistent with the first shell and the second shell, such as the diameter of an inner sphere and the like, and the measurement of parameters which are inconsistent with the first shell and the second shell, such as the size of a flange and the like, are realized, the application is compatible with the left shell and the right shell of the differential, and the size detection of the differential is realized based on the same measuring reference, thereby not only greatly ensuring the assembly precision and the reliability of the differential, but also effectively ensuring the measurement efficiency and the measurement effect.
The application also has the following advantages:
based on the same measuring standard and static measuring assembly, the diameters of the inner spherical surfaces of the first shell and the second shell are measured at multiple points respectively, so that the position parameters of the center of the inner spherical surface can be obtained, and the assembly precision of the differential mechanism is effectively ensured;
the movable measuring assembly and the lifting measuring assembly respectively take a retracted avoidance state through respective movement and lifting actions when not needed, so that the feeding and discharging of the shell or the use of the static measuring assembly are not affected, and the movable measuring assembly and the lifting measuring assembly respectively take action and extend out for measurement when needed; in the moving or lifting action, the matching of the guide pin and the pin seat and the matching of the pin group and the limiting piece are adopted respectively, so that the action precision is effectively ensured, and the measurement precision is ensured.
Drawings
Fig. 1 is a schematic structural view of the present application.
FIG. 2 is a schematic layout of each set of measurement components on the work platform of the present application.
FIG. 3 is a schematic diagram of a mobile measuring assembly according to the present application.
Fig. 4 is a schematic structural diagram of the elevating type measuring assembly of the present application.
Fig. 5 is a schematic structural view of the limiting member of the present application.
FIG. 6 is a schematic structural diagram of a static measurement assembly according to the present application.
Fig. 7 is a schematic structural view of the measuring power mechanism of the present application.
Fig. 8 is a schematic structural view of the receiving mechanism of the present application.
Fig. 9 is a schematic structural view of the differential of the present application.
Wherein: 1. a working platform; 2. a lifting type measuring assembly; 3. a column; 4. a sensor group; 5. a receiving mechanism; 6. centering the support column; 7. a static measurement assembly; 8. a mobile measurement assembly; 9. a differential case; 10. measuring a power mechanism;
21. a bottom plate; 22. a vertical seat; 23. a lifting cylinder; 24. a lifting plate; 25. a pin group; 27. a limiting piece; 28. a connecting rod; 29. a measuring rod;
51. lifting power drive; 52. a lifting frame; 53. a guide post; 54. a support ring; 55. a protruding pin;
61. a vertical groove; 62. a through hole;
71. a bracket; 73. a connecting seat; 74. a support arm;
81. a support; 82. a horizontal plate; 83. a moving cylinder; 84. a moving plate; 85. a vertical plate; 86. a guide pin; 87. a pin base; 88. detecting a first sensor;
90. a main bearing hole; 91. a first shell; 92. a second shell; 911. a flange; 921. a notch;
101. detecting a second sensor; 102. a floating plate; 103. a joint block; 104. a vertical block; 105. a reed; 106. a fixing plate; 107. a needle cylinder; 108. hard spots were measured.
Detailed Description
The following describes specific embodiments of the present application with reference to the drawings.
As shown in fig. 1 and 2, the full-automatic self-adaptive measuring device for left and right cases of a differential mechanism in this embodiment includes a working platform 1, a centering support column 6 is mounted on the working platform 1, a plurality of stand columns 3 are mounted on the working platform 1 located at the circumferential outer part of the centering support column 6 at intervals, a differential case 9 is formed by oppositely assembling a case one 91 and a case two 92 which are both in hemispherical structures, the case one 91 or the case two 92 is sleeved on the centering support column 6 through a main bearing hole 90, and the bottom surface of the case one 91 or the case two 92 is supported on the stand columns 3 to form a reference surface; the working platform 1 positioned on the circumferential outer part of the centering support column 6 is also provided with a static measuring component 7, a movable measuring component 8 and a lifting measuring component 2, wherein the static measuring component 7, the movable measuring component 8 and the lifting measuring component 2 are even-numbered groups which are symmetrically distributed relative to the centering support column 6; the outer diameter dimension of the embedded structure between the first shell 91 and the second shell 92 and the inner spherical diameter dimension of the differential shell 9 are measured by the static measuring assembly 7, the inner diameter dimension of the embedded structure between the first shell 91 and the second shell 92 is measured by the lifting measuring assembly 2, and the movable measuring assembly 8 measures the diameter dimension of the middle flange of the differential shell 9 and the distance between the flange and the reference surface.
In this embodiment, the first housing 91 or the second housing 92 is centered by the centering support column 6, and is supported from top to bottom by the upright post 3 via the reference surface, and then the static measuring assembly 7, the movable measuring assembly 8 and the lifting measuring assembly 2 are combined, so that not only the consistent parameters of the first housing 91 and the second housing 92, such as the inner sphere diameter, but also the inconsistent parameters of the first housing 91 and the second housing 92, such as the flange size, are measured, thereby being compatible with the left housing and the right housing of the differential, and realizing the size detection of the differential based on the same measurement reference.
In this embodiment, the inner spherical diameters of the first and second shells 91 and 92 are measured at multiple points based on the same measurement standard and the static measurement assembly 7, so that the position parameters of the center of the inner sphere can be obtained, and the assembly accuracy of the differential mechanism is effectively ensured.
The top surface of the upright post 3 and the supporting surface of the centering supporting post 6 are respectively provided with a sensor facing the differential mechanism shell 9, so that on one hand, the shell posture is detected in the measuring process to ensure that the shell posture is in a preset measuring posture, and on the other hand, the reference surface is acquired and set; after the movable measuring assembly 8 moves horizontally to the differential case 9, the outer circumferential surface of the flange is valued by a first detection sensor 88 facing horizontally to obtain the outer diameter size of the flange, the top surface of the flange is valued by a second detection sensor 88 facing vertically downwards, and the parameter value of the flange in the thickness direction is obtained by combining reference surface data.
As shown in fig. 3, the structure of the mobile measuring assembly 8 is: the device comprises a support 81 arranged on a working platform 1, wherein a horizontal plate 82 is welded at the top of the support 81 to form a whole, a vertical plate 85 and a movable air cylinder 83 are arranged at intervals in front of and behind the top surface of the horizontal plate 82, a movable plate 84 is arranged at the movable end of the movable air cylinder 83, the movable plate 84 moves towards the vertical plate 85, an adaptive guide pin 86 and a pin seat 87 are arranged on the opposite side surfaces of the movable plate 84 and the vertical plate 85, and a transverse groove for the guide pin 86 to be assembled is formed in the pin seat 87; two sets of detection sensors 88 are mounted on the moving plate 84, facing the flange horizontally and vertically, respectively.
In this embodiment, the moving cylinder 83 drives the moving plate 84 and the first detection sensor 88 thereon to move toward the flange, and guides and adapts to the pin seat 87 via the guide pin 86 during the movement, so that the reliability and accuracy of the movement are effectively ensured, and the accuracy of the measurement value is effectively ensured.
Since the first detection sensor 88 is used for measuring flange parameters, including a longitudinal dimension and a horizontal dimension, the requirement for the horizontal accuracy of the movement of the first detection sensor 88 is high, and the deviation or deviation of the movement in the vertical direction directly causes inaccuracy of dimension measurement in two directions; thus, based on the arrangement of the guide pin 86 and the pin holder 87, in particular, the lateral groove is provided on the pin holder 87, so that the accuracy and reliability of the movement in the horizontal direction are effectively ensured via the fitting of the guide pin 86 with respect to the lateral groove.
The lifting type measuring assembly 2 and the static measuring assembly 7 comprise a measuring power mechanism 10.
As shown in fig. 7, the structure of the measuring power mechanism 10 is: the floating plate 102 and the fixed plate 106 are arranged in parallel at an upper-lower interval, and reeds 105 are respectively and jointly arranged at two ends of the floating plate 102 and the fixed plate 106; the top surface of the fixed plate 106 is provided with a connecting block 103, the bottom surface of the floating plate 102 is provided with a vertical block 104, a needle-shaped air cylinder 107 horizontally penetrates through the connecting block 103, and the output end of the needle-shaped air cylinder 107 is fixed with the vertical block 104; the horizontal through joint block 103 is also provided with a second detection sensor 101, the output end of the second detection sensor 101 faces to the upright block 104, and the upright block 104 is provided with a measurement hard point 108 opposite to the output end of the second detection sensor 101.
The measuring power mechanism 10 drives measuring points in the lifting type measuring component 2 and the static measuring component 7 to reset through the floating plate 102, the measuring points are contacted with the wall surface of the first shell 91 or the wall surface of the second shell 92, and the measuring points are changed through the position of the measuring points by the second detecting sensor 101 to obtain measured values.
When in use, in a non-measurement state, the needle-shaped air cylinder 107 acts to overcome the deformation elasticity of the reed 105 and push the vertical block 104 to move, the floating plate 102 moves along with the vertical block 104 relative to the fixed plate 106, and at the moment, the measuring point is in a molding shrinkage state relative to the measured object, namely the measuring point is not contacted with the measured object; in the measurement state, the needle cylinder 107 is reset, the floating plate 102 and the vertical block 104 move and reset relative to the fixed plate 106 under the action of the deformation elasticity of the reed 105, the measuring points move towards the measured object until the measuring points are contacted with each other, and the detection sensor II 101 acquires the change of the moving position of the hard point 108 on the vertical block 104 to obtain a measured value.
In this embodiment, the elastic reset of the power mechanism 10 is measured to perform actual contact measurement, so that the measurement value is obtained, meanwhile, the reliable, effective and flexible contact between the measurement point and the measured object is effectively ensured through the elastic action, and the service life of the measurement assembly is effectively ensured while the measurement is accurate.
As shown in fig. 4, the elevating measurement assembly 2 has the following structure: the device comprises a bottom plate 21 arranged on a working platform 1, wherein a lifting cylinder 23 is arranged on the top surface of the bottom plate 21, the output end of the lifting cylinder 23 faces upwards and is provided with a lifting plate 24, a measuring power mechanism 10 is arranged on the top surface of the lifting plate 24, a connecting rod 28 is arranged on a floating plate 102 at the top of the measuring power mechanism 10, the end part of the connecting rod 28 extends towards a differential case 9 and is provided with a measuring rod 29, the measuring rod 29 extends to the inner side of the differential case 9, and a measuring point is arranged on the outer side surface of the measuring rod 29; the bottom plates 21 positioned at two sides of the lifting air cylinder 23 are provided with vertical seats 22, the top surfaces of the lifting plates 24 positioned at two sides of the measuring power mechanism 10 are provided with pin groups 25, the pin groups 25 comprise three pins which are distributed in a triangular structure, and the side surfaces of the vertical seats 22 facing the pin groups 25 are provided with limiting pieces 27 which are in one-to-one correspondence with the three pins; wherein the two limiting members 27 are provided with the same-direction long grooves at the ends, and the other limiting member 27 is provided with a concave round hole for pin assembly, as shown in fig. 5.
In this embodiment, the pin group 25 is matched with the limiting member 27 during the lifting action, especially, two limiting members 27 with long grooves are combined with one limiting member 27 with concave round holes, so that three ball socket positioning is formed during the upward movement of the lifting plate 24, the reliability and consistency of the upward movement of the lifting plate 24 are effectively ensured, and stable and reliable repeated measurement and use of the lifting measurement assembly 2 are effectively facilitated.
As shown in fig. 6, the static measurement assembly 7 has the following structure: the measuring power mechanism comprises a bracket 71 arranged on a working platform 1, wherein a measuring power mechanism 10 is arranged on the top surface of the bracket 71, a connecting seat 73 is arranged on a floating plate 102 at the top of the measuring power mechanism 10, the connecting seat 73 extends towards a differential case 9 and is provided with a support arm 74, and a measuring point is arranged at the end part of the support arm 74.
In the static measuring assembly 7 for measuring the outer diameter size, the support arm 74 is positioned outside the differential case 9, and a line contact mode is formed between a measuring point at the end part of the support arm 74 and the differential case 9; in the static measuring assembly 7 for measuring the diameter of the inner sphere, the support arm 74 extends into the differential case 9, and a point contact form is formed between a measuring point at the end of the support arm 74 and the differential case 9.
Of course, in the actual use process, it is also possible to provide a corresponding vertical groove 61 on the centering support column 6, provide a through hole 62 communicating with the inside and the outside on the centering support column 6 at the position sleeved with the main bearing hole 90, extend the corresponding support arm 74 into the centering support column 6 through the vertical groove 61, and make the measuring point at the end of the support arm 74 penetrate through the through hole 62, so as to realize the diameter detection of the static measurement assembly 7 on the differential case 9 at the main bearing hole 90.
The device also comprises a receiving mechanism 5, wherein the receiving mechanism 5 moves and supports the upper shell I91 or the shell II 92 to the upright post 3 and the centering supporting post 6; therefore, the butt joint between the measuring device and the external transfer mechanism is realized through the receiving mechanism 5, and the full-automatic use of the measuring device is realized.
As shown in fig. 8, the specific structure of the material receiving mechanism 5 is as follows: the lifting device comprises a plurality of guide posts 53 which vertically penetrate through a working platform 1 and are assembled through guide sleeves, lifting frames 52 are jointly installed at the bottom ends of the guide posts 53, and the lifting frames 52 are driven by lower lifting power 51 to move up and down relative to the working platform 1; the supporting rings 54 are mounted on the top ends of the guide posts 53 together, the supporting rings 54 are concentrically arranged outside the circumferential direction of the centering supporting posts 6, a plurality of protruding pins 55 are arranged on the top surface of the supporting rings 54 at intervals, coarse positioning of the differential case 9 is achieved through the protruding pins 55, the differential case 9 can be accurately sleeved on the centering supporting posts 6, accidental detachment of the differential case 9 from the supporting rings 54 is prevented through arrangement of the protruding pins 55, and safety is guaranteed.
In this embodiment, the sensor group 4 may be mounted on the work platform 1 to detect the presence or absence of the differential case 9 at the receiving mechanism 5.
In the embodiment, the movable measuring assembly 8 and the lifting measuring assembly 2 respectively take a retracted avoidance state through respective movement and lifting actions when not needed, so that the feeding and discharging of the shell or the use of the static measuring assembly 7 are not affected, and respectively take action and extend out for measurement when needed; in the moving or lifting action, the matching of the guide pin 86 and the pin seat 87 and the matching of the pin group 25 and the limiting piece 27 are adopted respectively, so that the action precision is effectively ensured, and the measurement precision is ensured.
As shown in fig. 9, the differential case 9 is formed by assembling a first case 91 and a second case 92 which are in hemispherical structures in opposite directions, wherein a flange 911 extends outwards from the edge of the inner wall surface of the first case 91, and a notch 921 matched with the flange 911 in an embedded manner is formed by inwards concave edge of the inner wall surface of the second case 92; center holes are formed in the joint surfaces of the first shell 91 and the second shell 92 along the diameter direction, and the outer holes of the center holes on the first shell 91 and the second shell 92 extend outwards to form a main bearing hole 90; the open end of the second shell 92 extends outwards to form a flange;
the measuring method for the left and right shells of the differential mechanism comprises the steps of respectively measuring a first shell 91 and a second shell 92;
when the first shell 91 is measured, the first shell 91 is sleeved on the centering support column 6 through the center hole in a centering way, the main bearing hole 90 faces upwards, and the bottom surface of the first shell 91 is supported on the upright column 3 to form a reference surface; obtaining the inner sphere size at a plurality of positions on the shell one 91 and the outer diameter size of the flange 911 by the static measuring assembly 7;
when the second shell 92 is measured, the second shell 92 is sleeved on the centering support column 6 through the center hole in a centering way, the main bearing hole 90 faces upwards, and the bottom surface of the second shell 92 is supported on the upright column 3 to form a reference surface; measuring and obtaining the inner spherical surface sizes at a plurality of positions on the second shell 92 by the static measuring component 7; the lifting type measuring assembly 2 ascends to measure the diameter of the notch 921 of the second shell 92; the mobile measuring assembly 8 is moved towards the second housing 92 to obtain the diameter dimension at the flange and the distance of the flange top surface from the reference surface.
The application is compatible and suitable for the left and right shells of the differential mechanism, realizes full-automatic size detection of the differential mechanism based on the same measurement standard, not only greatly ensures the assembly precision and reliability of the differential mechanism, but also effectively ensures the measurement efficiency and the measurement effect.
The above description is intended to illustrate the application and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the application.
Claims (10)
1. Full-automatic self-adaptation measuring device of casing about differential mechanism, including work platform (1), its characterized in that: the working platform (1) is provided with a centering supporting column (6), a plurality of stand columns (3) are arranged on the working platform (1) which is positioned outside the centering supporting column (6) in the circumferential direction at intervals, a differential mechanism shell (9) is formed by oppositely assembling a shell I (91) and a shell II (92) which are of hemispherical structures, the shell I (91) or the shell II (92) is sleeved on the centering supporting column (6) through a main bearing hole (90), and the bottom surface of the shell I (91) or the shell II (92) is supported on the stand columns (3) to form a datum plane; the working platform (1) positioned on the circumferential outside of the centering support column (6) is also provided with a static measuring component (7), a movable measuring component (8) and a lifting measuring component (2), wherein the static measuring component (7), the movable measuring component (8) and the lifting measuring component (2) are even-numbered groups symmetrically distributed relative to the centering support column (6); the outer diameter size of the embedded structure between the first shell (91) and the second shell (92) and the inner spherical diameter size of the differential shell (9) are measured by a static measuring assembly (7), the inner diameter size of the embedded structure between the first shell (91) and the second shell (92) is measured by a lifting measuring assembly (2), and the middle flange diameter size and the flange-to-reference surface distance of the differential shell (9) are measured by a movable measuring assembly (8).
2. The differential left and right housing full-automatic adaptive measurement device of claim 1, wherein: the top surface of the upright post (3) and the supporting surface of the centering supporting post (6) are respectively provided with a sensor facing the differential mechanism shell (9); after the movable measuring assembly (8) moves horizontally to the differential mechanism shell (9) in place, the outer circumferential surface of the flange is valued by a first detection sensor (88) facing horizontally, and the top surface of the flange is valued by another detection sensor (88) facing vertically downwards.
3. The differential left and right housing full-automatic adaptive measurement device of claim 2, wherein: the movable measuring assembly (8) is characterized in that: the automatic welding device comprises a support (81) arranged on a working platform (1), wherein a horizontal plate (82) is welded at the top of the support (81) to form a whole, a vertical plate (85) and a moving cylinder (83) are arranged at the front and back intervals on the top surface of the horizontal plate (82), a moving plate (84) is arranged at the moving end of the moving cylinder (83), the moving plate (84) moves towards the vertical plate (85), an adaptive guide pin (86) and a pin seat (87) are arranged on the opposite side surfaces of the moving plate (84) and the vertical plate (85), and a transverse groove for the guide pin (86) to be assembled is formed in the pin seat (87); two groups of first detection sensors (88) which are respectively horizontally and vertically oriented towards the flange are arranged on the moving plate (84).
4. The differential left and right housing full-automatic adaptive measurement device of claim 1, wherein: the lifting type measuring assembly (2) and the static measuring assembly (7) comprise a measuring power mechanism (10);
the structure of the measuring power mechanism (10) is as follows: the device comprises a floating plate (102) and a fixed plate (106) which are arranged in parallel at an upper-lower interval, wherein reeds (105) are respectively and commonly arranged at two ends of the floating plate (102) and the fixed plate (106); the top surface of the fixed plate (106) is provided with a connecting block (103), the bottom surface of the floating plate (102) is provided with a vertical block (104), the connecting block (103) is horizontally penetrated through, a needle-shaped air cylinder (107) is arranged, and the output end of the needle-shaped air cylinder (107) is fixed with the vertical block (104); the horizontal penetrating joint block (103) is also provided with a second detection sensor (101), the output end of the second detection sensor (101) faces the upright block (104), and the upright block (104) is provided with a measurement hard point (108) which is opposite to the output end of the second detection sensor (101); the measuring power mechanism (10) drives the lifting type measuring component (2) and the measuring point in the static measuring component (7) to reset through the floating plate (102), the measuring point is contacted with the wall surface of the first shell (91) or the wall surface of the second shell (92), and the measuring point position change of the second detecting sensor (101) is used for obtaining a measuring value.
5. The differential left and right housing full-automatic adaptive measurement device according to claim 4, wherein: the lifting type measuring assembly (2) is characterized in that: the automatic measuring device comprises a bottom plate (21) arranged on a working platform (1), wherein a lifting cylinder (23) is arranged on the top surface of the bottom plate (21), the output end of the lifting cylinder (23) faces upwards and is provided with a lifting plate (24), a measuring power mechanism (10) is arranged on the top surface of the lifting plate (24), a connecting rod (28) is arranged on a floating plate (102) at the top of the measuring power mechanism (10), the end part of the connecting rod (28) extends towards a differential case (9) and is provided with a measuring rod (29), the measuring rod (29) extends to the inner side of the differential case (9), and a measuring point is arranged on the outer side surface of the measuring rod (29); the lifting device comprises a lifting cylinder (23), a lifting plate (24) and a pin group (25), wherein the lifting plate (21) is arranged on two sides of the lifting cylinder (23), the top surface of the lifting plate (24) is provided with the pin group (25), the pin group (25) comprises three pins which are arranged in a triangular structure, and limiting pieces (27) which are in one-to-one correspondence with the three pins are arranged on the side surface of the lifting plate (22) facing the pin group (25); wherein the end parts of the two limiting parts (27) are provided with equidirectional long grooves, and the end parts of the other limiting parts (27) are provided with concave round holes for pin assembly.
6. The differential left and right housing full-automatic adaptive measurement device according to claim 4, wherein: the static measurement assembly (7) is structured as follows: the device comprises a bracket (71) arranged on a working platform (1), a measuring power mechanism (10) is arranged on the top surface of the bracket (71), a connecting seat (73) is arranged on a floating plate (102) at the top of the measuring power mechanism (10), the connecting seat (73) extends towards a differential shell (9) and is provided with a support arm (74), and a measuring point is arranged at the end part of the support arm (74).
7. The differential left and right housing full-automatic adaptive measurement device of claim 6, wherein: in the static measuring assembly (7) for measuring the outer diameter size, a support arm (74) is positioned outside a differential shell (9), and a line contact mode is formed between a measuring point at the end part of the support arm (74) and the differential shell (9); in the static measuring assembly (7) for measuring the diameter of the inner sphere, a support arm (74) extends into the differential shell (9), and a point contact mode is formed between a measuring point at the end part of the support arm (74) and the differential shell (9).
8. The differential left and right housing full-automatic adaptive measurement device of claim 1, wherein: the device also comprises a receiving mechanism (5), wherein the receiving mechanism (5) downwards moves and supports the first shell (91) or the second shell (92) above to the upright post (3) and the centering supporting post (6).
9. The differential left and right housing full-automatic adaptive measurement device of claim 8, wherein: the concrete structure of the material receiving mechanism (5) is as follows: the lifting device comprises a working platform (1) which penetrates up and down, and a plurality of guide posts (53) assembled through guide sleeves, wherein lifting frames (52) are commonly installed at the bottom ends of the guide posts (53), and the lifting frames (52) are driven by lifting power below (51) to move up and down relative to the working platform (1); the top ends of the guide posts (53) are commonly provided with a supporting ring (54), the supporting ring (54) is concentrically arranged outside the circumferential direction of the centering supporting post (6), and a plurality of protruding pins (55) are arranged on the top surface of the supporting ring (54) at intervals.
10. A method for measuring a full-automatic self-adaptive measuring device for left and right cases of a differential according to claim 1, characterized in that: the differential mechanism shell (9) is formed by oppositely assembling a first shell (91) and a second shell (92) which are of hemispherical structures, a flange (911) is outwards extended from the edge of the inner wall surface of the first shell (91), and a notch (921) matched with the flange (911) in an embedded manner is formed in the edge of the inner wall surface of the second shell (92) in a concave manner; center holes are formed in the joint surfaces perpendicular to the first shell (91) and the second shell (92) along the diameter direction, and the outer holes of the center holes on the first shell (91) and the second shell (92) extend outwards to form main bearing holes (90); the open end of the second shell (92) extends outwards to form a flange;
the measuring method for the left and right shells of the differential mechanism comprises the steps of respectively measuring a first shell (91) and a second shell (92);
when the first shell (91) is measured, the first shell (91) is sleeved on the centering support column (6) through the center hole in a centering way, the main bearing hole (90) faces upwards, and the bottom surface of the first shell (91) is supported on the upright column (3) to form a reference surface; obtaining, by the static measurement assembly (7), the dimensions of the internal sphere at a plurality of positions on the first shell (91) and the dimensions of the external diameter of the flange (911);
when the second shell (92) is measured, the second shell (92) is sleeved on the centering support column (6) through the center hole in a centering way, the main bearing hole (90) faces upwards, and the bottom surface of the second shell (92) is supported on the upright column (3) to form a reference surface; measuring by a static measuring component (7) to obtain the inner sphere sizes at a plurality of positions on a second shell (92); the lifting type measuring component (2) ascends to measure the diameter of the notch (921) of the second shell (92); the movable measuring component (8) moves towards the second shell (92) to obtain the diameter size of the flange and the distance between the top surface of the flange and the reference surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310566431.3A CN116697947A (en) | 2023-05-18 | 2023-05-18 | Full-automatic self-adaptive measuring device and measuring method for left and right shells of differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310566431.3A CN116697947A (en) | 2023-05-18 | 2023-05-18 | Full-automatic self-adaptive measuring device and measuring method for left and right shells of differential mechanism |
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| Publication Number | Publication Date |
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| CN116697947A true CN116697947A (en) | 2023-09-05 |
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|---|---|---|---|
| CN202310566431.3A Pending CN116697947A (en) | 2023-05-18 | 2023-05-18 | Full-automatic self-adaptive measuring device and measuring method for left and right shells of differential mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119063676A (en) * | 2024-11-06 | 2024-12-03 | 赣州至越机械有限公司 | A detection device for inner diameter of differential housing |
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2023
- 2023-05-18 CN CN202310566431.3A patent/CN116697947A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119063676A (en) * | 2024-11-06 | 2024-12-03 | 赣州至越机械有限公司 | A detection device for inner diameter of differential housing |
| CN119063676B (en) * | 2024-11-06 | 2025-01-14 | 赣州至越机械有限公司 | Detection device for inner diameter of differential mechanism shell |
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