WO2018003438A1 - 締付け実習装置、締付け実習方法、締付け実習プログラムおよび締付け実習システム - Google Patents
締付け実習装置、締付け実習方法、締付け実習プログラムおよび締付け実習システム Download PDFInfo
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- WO2018003438A1 WO2018003438A1 PCT/JP2017/021081 JP2017021081W WO2018003438A1 WO 2018003438 A1 WO2018003438 A1 WO 2018003438A1 JP 2017021081 W JP2017021081 W JP 2017021081W WO 2018003438 A1 WO2018003438 A1 WO 2018003438A1
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- Prior art keywords
- tightening
- axial force
- bolt
- bolts
- identification information
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
Definitions
- the present invention relates to a practice technique for experiencing and learning bolt and nut tightening processing with a tightening tool.
- the rotation permissible portions having screw holes with different diameters are arranged up and down, a load cell is arranged between the rotation permissible portions, and the bolt that penetrates the load cell is tightened.
- a load cell is arranged between the rotation permissible portions, and the bolt that penetrates the load cell is tightened.
- an object of the present invention is to improve an operator's bolt and nut tightening technology.
- Another object of the present invention is to visualize the influence of the surface condition of the bolt and nut on the tightening.
- a plurality of bolts installed so as to be tightened, an axial force sensor for detecting an axial force applied to each bolt, and identification of each bolt And means for comparing the information and the detected axial force to compare the detected axial force between the bolts.
- a plurality of bolts having different screw surface states and a shaft for detecting an axial force generated in the bolt by tightening a nut using a tightening tool The sensor output from the force sensor and the axial force sensor is received, and the comparison graphic output that indicates the magnitude of the axial force between the bolts is generated while relating the identification information including the surface state of the bolt and the detected axial force. Processing means.
- the tightening training apparatus may further include display means connected to the processing means for displaying the contrast graphic output received from the processing means.
- a plurality of the bolts are arranged in a line, and a support case that houses and supports the bolts and the axial force sensor is provided, and the processing means includes the bolts to the support case.
- the contrast graphic output in which the identification information is arranged may be generated.
- the tightening training apparatus includes a storage unit that stores the identification information of the arranged bolt, and the processing unit reads out the identification information of the bolt detected from the storage unit upon detection of an axial force.
- the contrast graphic output may be generated.
- the identification information includes a torque coefficient indicating a surface state of the bolt
- the processing means may display the torque coefficient in association with the axial force display of the contrast graphic output.
- the processing means calculates a tightening torque from the detected axial force and the identification information of the bolt, and generates the contrast graphic output including information indicating the magnitude of the tightening torque between the bolts. You can do it.
- a step of installing a plurality of bolts so as to be tightened a step of detecting an axial force applied to each bolt by an axial force sensor, A step of correlating the detected axial force between the bolts by associating the identification information of the bolt with the detected axial force.
- a step of tightening a nut using a tightening tool with respect to a plurality of bolts having different surface states of screws, and the bolt by tightening the nut Detecting the axial force generated in the axial force sensor, capturing the sensor output of the axial force sensor, identifying information including the surface state of the bolt and the axial force information, and Generating a contrast graphic output representing the magnitude of the axial force.
- a tightening training program to be executed by a computer of a tightening training apparatus, wherein each axial force of a plurality of bolts installed so as to be tightened can be The computer is caused to execute a function of obtaining the information by a force sensor and correlating the detected axial force between each bolt by relating the identification information of each bolt and the detected axial force.
- a tightening training program to be executed by a computer of a tightening training device, wherein a tightening tool is applied to a plurality of bolts having different screw surface states.
- the sensor output of the axial force generated in the bolt by tightening the nut is taken in by the axial force sensor, and the identification information including the surface state of the bolt is related to the axial force, and the bolts
- the computer is caused to execute a function of generating a contrast graphic output indicating the magnitude of the axial force.
- the computer calculates a tightening torque from the detected axial force and the bolt identification information, and generates the contrast graphic output including information indicating the magnitude of the tightening torque between the bolts. You can make it run.
- a tightening training system for training tightening of a nut with respect to a bolt.
- An axial force sensor for detecting the axial force to be detected; identification information for each bolt; and a comparison means for relating the detected axial force obtained from the axial force sensor and comparing the detected axial force between the bolts.
- a tightening training system for training tightening of a nut with respect to a bolt wherein a plurality of bolts having different screw surface states and a tightening tool are used.
- a tightening training unit comprising an axial force sensor that detects an axial force generated in the bolt by tightening a nut that has been tightened, and connected to the axial force sensor, receives a sensor output, and is detected as identification information including a surface state of the bolt. And a processing means for generating a contrast graphic output representing the magnitude of the axial force between the bolts and a monitor connected to the processing means for displaying the contrast graphic output.
- FIG. 1 It is a figure which shows the structural example of the clamping training apparatus which concerns on one embodiment. It is a flowchart which shows an example of a tightening training process. It is a figure which shows an example of a contrast figure. It is a figure which shows the Example of a tightening training system. It is a fragmentary sectional view which shows the structural example of a training part. It is a top view which shows the structure of the upper surface side of a training part. It is a figure which shows the external appearance structural example of a load cell. It is a figure which shows the structural example of an intermediate plate. It is a figure which shows the structural example of PC. It is a figure which shows an example of a database. It is a figure which shows an example of a contrast figure. It is a flowchart which shows an example of a tightening training process. It is a figure which shows an example of a contrast figure. It is a flowchart which shows an example of a tightening training process. It is a figure
- FIG. 1 shows a configuration example of a tightening training apparatus according to an embodiment.
- the configuration shown in FIG. 1 is an example, and the present invention is not limited to such a configuration.
- This tightening training device 2 is an example of a device that allows the user to experience the tightening process of the bolts 4 and nuts 6 by manual tightening work and to visually grasp the difference in tightening state among a plurality of bolts.
- the tightening training device 2 includes a plurality of bolts 4-1, 4-2,..., 4-N having different surface conditions, and a plurality of nuts 6-1, 6-2 having the same surface condition as the bolts. ⁇ Has 6-N.
- the tightening training apparatus 2 includes sensors 10-1, 10-2,... 10-N, an information processing unit 12, and a monitor 14.
- the bolts 4-1, 4-2,... 4-N and the nuts 6-1, 6-2,... 6 -N are set with identification information based on the type of surface condition, for example. Identified.
- the tightening training device 2 is provided with bolts 4-1, 4-2,..., 4-N having different surface states, so that each tightening can be experienced and the difference in surface states can be visually confirmed.
- This surface condition is, for example, a film with a coating (coating film) formed by plating, paint or resin for imparting a function, a surface coated with lubricating oil before tightening, or a normal surface without coating Or the thing which rust etc. adhered by agedness or use environment is included. Then, bolts and nuts having the same surface state are combined, and a tightening practice using the tightening tool 8 is performed.
- the bolts 4-1, 4-2,... 4-N are provided with sensors 10-1, 10-2,... 10-N that detect the axial force F generated in the axial direction.
- This axial force F is a force generated by tightening the nuts 6-1, 6-2,... 6-N against the bolts 4-1, 4-2,.
- the surface condition of bolts 4-1, 4-2, In addition to the tightening torque and tightening amount of 6-2,..., 6-N, the surface condition of bolts 4-1, 4-2,. Therefore, it is necessary to adjust the tightening method of the nuts 6-1, 6-2,..., 6-N depending on the surface condition of the bolts 4-1, 4-2,.
- the tightening training apparatus 2 makes it possible to visually recognize the feeling of the tightening of the nuts 6-1, 6-2,...
- the information processing unit 12 is an example of a processing unit of the present disclosure, takes in the detection information of the sensors 10-1, 10-2,..., 10-N, and bolts 4-1, 4-2,. This is an example of a comparison unit that generates a comparison graphic that compares the tightening states of -N.
- the information processing unit 12 includes axial force information from the sensors 10-1, 10-2,..., 10-N, and bolts 4-1, 4-2,. -1,6-2,..., 6-N are associated with each other, and a contrast graphic of the axial force F of the bolts 4-1, 4-2,.
- the monitor 14 is an example of a display unit of the present disclosure that displays a contrast graphic generated by the information processing unit 12.
- the monitor 14 may be, for example, a display device that receives and displays a signal from an external information processing means, or may be a display unit of an information processing device that is configured integrally with the information processing unit 12.
- the bolts 4-1, 4-2,... 4-N are subjected to an axial tensile force (axial force) by tightening the nuts 6-1, 6-2,.
- a member to be fastened (not shown) may be installed.
- the nuts 6-1, 6-2,..., 6-N do not rotate and move along the thread of the bolts 4-1, 4-2,.
- the bolts 4-1, 4-2,..., 4-N may receive the axial force F that is pulled in the axial direction by fastening to the member to be fastened.
- nuts 6-1, 6-2,..., 6-N may be used with the same material and the same height in order to match the tightening torque and tightening height. .
- FIG. 2 shows an example of the tightening training process.
- This tightening training process is an example of the tightening training processing method or the tightening training processing program of the present disclosure, and the present invention is not limited to the processing procedure and processing content.
- the information processing unit 12 acquires the identification information of the bolts 4-1, 4-2,... 4-N on which the tightening training is performed (S 1).
- the information processing unit 12 may read the identification information in response to selection of the bolts 4-1, 4-2,.
- the identification information may be read from, for example, a database (not shown) stored in advance in the storage unit of the information processing unit 12, or may be input by an instructor or an administrator using an input unit. Further, the tightening training apparatus 2 may take in by communication with an external device.
- the information processing unit 12 relates the captured identification information and the axial force F to form a graphic, and outputs a contrast graphic for comparing the axial force of each bolt 4-1, 4-2,... Is generated (S4).
- the contrast graphic output When the contrast graphic output is generated, the contrast graphic output may be displayed on the monitor 14, for example, or the data may be notified to an external information processing apparatus or the like.
- FIG. 3 shows an example of a contrast graphic.
- identification information for identifying the bolt is set on the horizontal axis, and the detected axial force F is set on the vertical axis.
- this identification information for example, bolts A, B,..., Bolt N may be set in accordance with the tightening order for bolts 4-1, 4-2,.
- the tightening sequence is performed according to the sequence arranged in the tightening training apparatus 2, and the bolt 4-1 is the bolt A, the bolt 4-2 is the bolt B,..., The bolt 4-N is the bolt N. Represents.
- the bolt A and bolt B show the detection results when using, for example, a high-lubricated and highly functional coating that reduces frictional resistance on the bolt surface.
- the bolt N is, for example, a normal metal surface, and particularly indicates a detection axial force of a bolt to which no coating or lubricating oil is applied. A high value is detected for the axial force FA of the bolt A and an axial force FB of the bolt B, whereas a low value is detected for the axial force FN of the bolt N relative to the axial forces FA and FB. .
- This difference in axial force represents the fastening force between the bolt and nut. That is, if bolts A and B with large detected axial force are used, a stronger fastening force can be obtained, whereas bolt N with a small detected axial force has a lower fastening force than bolts A and B. Recognize. Therefore, it can be seen that when the bolt N is used, the nut needs to be tightened with a larger force.
- the fastening function of the parts to be fastened such as the gasket to be fastened can be improved, and the safety of the parts to be fastened can be improved.
- the trainee can speed up the mastering of the tightening process of the nut with respect to the bolt, and can improve the skill level of the nut tightening work or the correction thereof.
- FIG. 4 is a diagram illustrating an example of the tightening training system 20.
- the configuration shown in FIG. 4 is an example, and the present invention is not limited to such a configuration.
- the tightening training system 20 includes a plurality of bolts 4-1, 4-2, 4-3, and 4-4 having different surface states, and a load cell 24 that detects strain generated in the bolts.
- a training unit 22, a strain measuring device 26, and a PC (Personal Computer) 28 are provided.
- the tightening state by tightening the nuts 6-1, 6-2, 6-3, 6-4 to the bolts 4-1, 4-2, 4-3, 4-4 having different surface conditions is determined. Tightening practice to grasp.
- the training section 22 is an example of a device that allows the user to feel the tightening operation of the nut with respect to the bolt.
- Most of the load cell 24 and the bolts 4-1, 4-2, 4-3, and 4-4 are accommodated inside the housing. ing. Further, the screw part on one end side of the bolts 4-1, 4-2, 4-3, and 4-4 is exposed on the ceiling side of the training part 22, and the nuts 6-1, 6-2, 6-3 and 6-4 are screwed together.
- the strain measuring device 26 is an example of means connected to the load cell 24 and amplifying the strain detection signal of the bolt shaft detected by the load cell 24 and converting the amplified strain detection signal into computer-readable data. .
- the strain measured by the strain measuring device 26 represents the axial force F.
- the PC 28 is an example of the information processing unit 12 of the present disclosure.
- the PC 28 captures the axial force F (strain data) from the strain measuring device 26 and compares the bolts 4-1, 4-2, 4-3, and 4-4. Is generated.
- the PC 28 is, for example, a notebook personal computer, and includes a main body unit 30 including an information input function and an operation input unit such as a keyboard, and a monitor 32 that displays a contrast image and the like.
- the PC 28 may be any computer as long as it can associate the detected axial force F with bolt identification information and generate a contrast image between bolts, and is not limited to a notebook PC.
- the PC 28 may have a configuration in which the main body and the monitor are separated, or conversely, may be a mobile terminal device in which the monitor and the main body are integrated.
- FIG. 5 is a partial cross-sectional view showing a configuration example of the training section.
- the training section 22 is formed with a storage section 40 for storing the bolts 4-1, 4-2, 4-3, 4-4 and the load cell 24 installed on each bolt inside the exterior casing.
- the storage unit 40 is an example of a support case according to the present disclosure, and the bolts 4-1, 4-2, 4-3, 4-4 and the load cells 24 are arranged in a row, and these are the case unit 40. Supports to prevent displacement or withdrawal to the outside.
- the storage unit 40 includes an inner plate 42 on which the bolts 4-1, 4-2, 4-3, 4-4 and the load cell 24 are placed at a predetermined height. The floor is not affected by the parallelism or unevenness of the floor.
- a top plate 44 is installed on the ceiling side of the storage unit 40 at a height that covers the top surface of the load cell 24.
- the top plate 44 is formed with an opening 52 (FIG. 6) for projecting the tip ends of the bolts 4-1, 4-2, 4-3, and 4-4 arranged with the screw shaft side facing the upper surface. Has been.
- the screw shafts of the bolts 4-1, 4-2, 4-3, and 4-4 are tightened with the nuts 6-1, 6-2, 6-3, and 6-4 against the portion protruding from the top plate 44 It should be set to a length that can be used.
- the training section 22 has an opening 46 through which the cable 48 of the load cell 24 is inserted in a part of the side surface.
- leg portions 50 for maintaining the middle plate 42 at a predetermined height are formed on the left and right ends on the bottom side of the housing.
- the leg portion 50 may be formed with a screw hole for fixing to a bottom plate member or a measuring device (not shown), for example.
- the opening 52 formed in the top plate 44 of the training section 22 has an opening width W1 based on the diagonal dimension W2 of the nuts 6-1, 6-2, 6-3, 6-4.
- W1 based on the diagonal dimension W2 of the nuts 6-1, 6-2, 6-3, 6-4.
- the nuts 6-1, 6-2, 6-3, 6-4 are inserted into the opening 52 using the tightening tool 8, and the end surface of the nut is placed on the upper surface side of the load cell 24. Tighten with contact. Therefore, the top plate 44 is formed thinner than the vertical width of the nuts 4-1, 4-2, 4-3, 4-4, or the tightening tool 8 can insert the width W1 of the opening 52. What is necessary is just to set to a magnitude
- top plate 44 contacts the upper surface side of the load cell 24 to prevent a change in the storage unit 40 and a separation from the storage unit 40.
- the top plate 44 is fixed to the side surface of the casing or the leg 50 by screws installed at four corners, for example.
- the top plate 44 is detachably installed as necessary in order to install or replace the bolts 4-1, 4-2, 4-3, 4-4 and the load cell 24 to be practiced.
- a support piece (not shown) may be formed on the top plate 44 and may be brought into contact with the side surface side of the load cell 24.
- a through hole 56 for penetrating the object to be measured is formed in the central portion, and a contact portion 58 formed with a predetermined width on the inner periphery of the surface portion 55 along the through hole 56 is provided.
- the through hole 56 covers the peripheral surface of the screw shaft by allowing the bolts 4-1, 4-2, 4-3, and 4-4, which are measured objects, to pass therethrough.
- the opening width W3 of the through hole 56 may be, for example, a dimension that does not displace the bolt, and is equal to or slightly larger than the nominal diameter of the bolts 4-1, 4-2, 4-3, and 4-4. Is set.
- the contact portion 58 is, for example, a cylindrical strain body disposed along the through-hole 56, and includes a strain gauge in a portion not shown.
- the contact portion 58 is deformed when the upper surface side is pressed by the nuts 6-1, 6-2, 6-3, 6-4 fastened to the bolts.
- the internal strain gauge detects this deformation (strain)
- a voltage value corresponding to the deformation amount is output.
- the strain of the contact portion 58 is equivalent to the strain generated in the bolt when the bolt and the nut are tightened through the fastened member, and the axial force F acting on the bolt is measured from the voltage value of the strain gauge. .
- the formation width W4 of the contact portion 58 may be, for example, a width that allows contact with the nut, and may be set to be equal to the diagonal distance W2 of the nut.
- the opening 60 is formed with an opening 60 at a bolt installation position, for example.
- the opening 60 is adapted to fit the heads 62-1, 62-2, 62-3, 62-4 of the bolts 4-1, 4-2, 4-3, 4-4, and the screw shaft portion. Project upward.
- the opening 60 engages the heads 62-1, 62-2, 62-3, and 62-4 to prevent the bolt from rotating with respect to the tightening operation of the nut. It is formed in a hexagonal shape so as to prevent detachment.
- the interval between the openings 60 may be set to be wider than at least the width of the load cell 24 and set so that the nuts can be easily tightened with respect to adjacent bolts.
- the through-hole 63 is a hole for installing a support component (not shown), and the load cell 24 can be fixedly supported by bringing the support component into contact with the exterior portion of the load cell 24.
- the support component may be, for example, a shaft component or a screw component that can be engaged with the exterior housing of the load cell 24.
- FIG. 9 shows a configuration example of the PC.
- the PC 28 has a function of storing the identification information of the bolts 4-1, 4-2, 4-3, 4-4 and the detected axial force F, and a function of generating a contrast graphic by associating these pieces of information. .
- the PC 28 includes, for example, a processor 64, a storage unit 66, an input operation unit 68, a communication unit 70, and an input / output unit (I / O) 72.
- the processor 64 performs arithmetic processing for executing an OS (Operating System), a tightening training program, and the like in the storage unit 66.
- This calculation processing includes acquisition of axial force information from the strain measuring device 26, reading of input identification information of bolts and nuts, and generation processing of a contrast graphic.
- the storage unit 66 is used to store an OS, a tightening training program, identification information, axial force information, and the like, and includes a ROM (Read Only Memory) and a RAM (Random Access Memory).
- the storage unit 66 may be a storage device such as a hard disk or semiconductor memory capable of holding stored contents.
- the storage unit 66 is formed with a database (DB) 74 for managing input identification information and detected axial force information.
- DB database
- the input operation unit 68 is an example of operation means used for inputting information, and for example, a keyboard or a mouse is used.
- the communication unit 70 is controlled by the processor 64 and is used for wireless connection with the strain measuring device 26, wireless connection with an external device (not shown), and Internet connection.
- the I / O 72 is controlled by the processor 64 and used for input / output of control information, and is connected to the strain measuring device 26 and the monitor 32.
- FIG. 10 shows a configuration example of the database.
- a database 74 for storing bolt identification information, detected axial force information and the like used for tightening training is formed.
- identification information 76 a bolt name, coating information indicating a surface state, age information, torque coefficient, dimensions, and the like are registered. This identification information 76 may be input by a practitioner or an administrator when performing tightening training, for example, or may read information set in advance.
- the database 74 may store, for example, the detected axial force value, the calculated torque value, etc. as the training information 78.
- the storage unit 66 of the PC 28 may include, for example, a worker database including information on workers who receive tightening training and information on managers.
- This worker database stores, for example, ID (IDentification) information, company name information, worker name information, date and time, bolt type, number of times, and the like for which tightening training has been performed, and is associated with the database 4 described above. May be.
- This worker database may be used as information indicating whether or not there is a tightening experience when selecting bolts and nuts to be used in an actual machine, for example.
- FIG. 11 shows an example of a contrast graphic generated based on the detected axial force.
- the graph shapes and numerical values shown in FIG. 11 are examples, and the present invention is not limited to such contents.
- the contrast graphic shown in FIG. 11 shows the bolt identification information on the horizontal axis and the detected axial force F on the vertical axis, as described above.
- the tightening torque values of the nuts 6-1, 6-2, 6-3, 6-4 are set within a predetermined range. This is the case of tightening training.
- the contrast graphic also includes information on such tightening torque. Further, as the identification information of each bolt, for example, torque coefficient information indicating the surface state is displayed near each axial force graph display.
- the detected values of the axial force F of the bolts shown in the contrast graphic may be arranged, for example, according to the order in which the tightening training is performed, or the bolts 4-1, 4-2, 4-3, 4- You may display a result according to the arrangement
- FIG. 1 The detected values of the axial force F of the bolts shown in the contrast graphic may be arranged, for example, according to the order in which the tightening training is performed, or the bolts 4-1, 4-2, 4-3, 4- You may display a result according to the arrangement
- the difference in the surface condition of bolt A, bolt B, bolt C, and bolt D with the nut tightened with the same torque is expressed as the difference in the axial force F indicating the fastening strength.
- FIG. 12 shows an embodiment of the tightening training process.
- This tightening training process is an example of the tightening training method or the tightening training program of the present disclosure.
- bolts 4-1, 4-2, 4-3, 4-4 and nuts 6-1, 6-2, 6-3, 6- 4 is selected (S11) and installed in the training section 22.
- identification information of each bolt and nut is input to the PC 28 (S12).
- identification information for example, bar code information or the like may be read in addition to key input of information shown in the main body of the bolt or nut or the storage means of the bolt or nut.
- a combination of a plurality of bolts and nuts for training may be set in advance, and identification information linked to the combination information may be stored in the database 74.
- a tightening torque value As preparation for practical training, an operating force applied by a tool for tightening a nut, that is, a tightening torque value is set (S13).
- the tightening torque value may be set according to the nominal diameter of the bolt used for the training, for example. This torque value may be varied depending on the size of the nominal diameter so that the bolt is not broken by tightening, for example.
- a torque wrench may be used as a tool capable of measuring the tightening torque, but a normal spanner or the like may be used.
- a tightening operation may be set instead of setting a specific tightening torque value.
- the force applied to the spanner (tightening torque) for the nominal size of the screw is, for example, as a guide, "add only the wrist from the back”, “apply the force from the elbow”, “apply the force from the shoulder to the tip” ("Valker Handbook, Technical Edition", revised on September 30, 2010, issued by Nippon Valqua Industries, Ltd., page 116).
- the PC 28 captures the sensor output (S15). For example, as a preparation for generating a contrast graphic, the PC 28 matches the information on the detected axial force F with the identification information of the load cell 24 that is a sensor that detects the information (S16). By this alignment process, the PC 28 associates the bolts that have been subjected to the tightening training, the tightening order thereof, and the detected axial force F.
- PC 28 reads the identification information of the bolt and nut, and associates this identification information with the detected axial force F (S17).
- information used for generating a contrast graphic such as information on the type of bolt and nut coating and information on the torque coefficient, is associated with the information on the axial force F.
- This axial force F is taken in and matched with the identification information until the tightening training is completed (NO in S18).
- the correlated information is generated using the associated information, and the generated contrast graphic is displayed on the monitor 32 (S19).
- the contrast graphic may be arranged in the order in which the axial force is taken in, or may be arranged in a predetermined order. Further, the contrast graphic generation processing is not limited to the case where it is performed after all tightening training is completed, and the graphic content may be generated in real time when the axial force F is detected, and the display content may be updated.
- the training section 22 allows the top plate 44 of the housing section to be detachable and the heads of the bolts 4-1, 4-2, 4-3, 4-4 to the middle plate 42 in the storage section.
- the exchangeability of the bolts 4-1, 4-2, 4-3, and 4-4 is improved.
- middle plate 42 By making the middle plate 42 detachable from the housing, it can be easily replaced with bolts and nuts of different nominal diameters, and can be replaced with bolts and nuts of different sizes. Is increased.
- the leg 50 is provided in the training part 22, and the middle plate 42 on which the bolts and the load cell 24 are placed is separated from the installation surface of the training part 22, thereby preventing the influence of the inclination and vibration of the installation surface during the tightening process. Can be reduced.
- the load cell 24 is stored in the storage unit 40 of the training unit 22 and the upper end 55 of the load cell 24 is supported by contact with the top plate 44, thereby preventing displacement of the load cell 24 and the tightening tool 8 It is possible to prevent pressure and damage due to contact.
- FIG. 13 shows a contrast graphic according to the second embodiment.
- the torque value calculated based on the detected axial force F is displayed.
- a calculation process of a torque necessary for the tightening is performed on the detected axial force F.
- T kFd (1)
- k represents a torque coefficient indicating the surface state
- d represents a nominal diameter of the bolt.
- the torque is calculated from the detected axial force F when the bolts A, B, C, and D have the same tightening amount.
- the tightening process for example, if the number of times of tightening is counted and all the bolts are tightened the same number of times, the number of threads through which the nut passes matches, and the same amount of tightening can be realized. In this way, when the tightening amount is the same, the axial force acting on the bolt has the same value.
- the identification information of the bolt is displayed on the horizontal axis, and the calculated torque value is displayed on the vertical axis.
- the bolt A and the bolt B are examples of calculation results when, for example, a low-friction surface coating is applied, the bolt C is applied with a lubricating oil, for example, and the bolt D is not coated. Show. The coating of the bolt A and the bolt B has a small torque coefficient with respect to the bolt C and the bolt D.
- torque coefficient information may be displayed as identification information of each bolt, or the set axial force F may be displayed.
- FIG. 14 shows an embodiment of the tightening training process.
- the detected torque value of the torque wrench may be taken into the PC 28 and the detected torque value may be compared with the calculated torque value T.
- the bolt tightening process in which the identification information indicating the surface state of the screw such as the type of coating and the torque coefficient is shown, but the present invention is not limited to this.
- Two or more types of bolts and nuts having different screw surface states may be selected, and the experience of tightening work and comparison of detected axial force may be practiced. According to such a configuration, it is possible to acquire a tightening technique for nuts having different surface states, and to grasp the tightened state of selected bolts and nuts and to compare the influence of the surface state.
- the temperature training may be added to perform the tightening training.
- the tightening training device 2 includes, for example, a heating means and a temperature detection means in the housing, and heats the bolts 4-1, 4-2,. Also good.
- one or a plurality of temperature conditions may be set, and the axial force between the bolts may be compared with the temperature conditions taken into consideration. In this way, by performing tightening training while heating, it is possible to experience a change in the surface state according to the temperature condition. It is also possible to practice the importance of considering the thermal characteristics for the type of coating in selecting bolts and nuts.
- the contrast graphic in which the axial force F is associated with the identification information is shown, but the present invention is not limited to this.
- a comparison result of evaluation information indicating whether or not the detected axial force is a sufficient value between a plurality of bolts may be displayed.
- information on evaluation criteria and evaluation information may be included together with information on the detected axial force F.
- the PC 28 stores, for example, a reference axial force serving as an evaluation threshold in the storage unit 66, evaluates the detected axial force in generating a contrast graphic, and evaluates the evaluation result by a graph, characters, numerical values, or the like. Should be generated.
- the PC 28 may display an insufficient or excessive axial force value, advice information that suggests an increase or decrease in the tightening torque corresponding thereto, and the like.
- a flange or gasket may be interposed in accordance with the actual machine that performs tightening, and the flange and gasket may be tightened with a bolt and a nut to detect the axial force of the bolt in such a state.
- a sensor other than the load cell 24 may be used to detect the axial force of the bolt.
- torque may be applied until one of the bolts breaks, and the axial force F when any of the bolts breaks may be compared. According to such practice, it is possible to experience the ease of tightening due to the difference in the surface condition and the importance of the tightening work according to the surface condition.
- the identification information indicating the surface state and the detected axial force of the tightening are related, and the magnitude of the axial force between the bolts can be experienced and visually.
- the effect can be recognized, and the bolt can be selected and the tightening skill can be improved due to the difference in surface condition.
- Tightening training device 4 4-1, 4-2, ... 4-N bolt 6, 6-1, 6-2, ... 6-N nut 8 Tightening tool 10 10-1, 10-2, ... 10-N sensor 12 Information processing unit 14, 32 Monitor 20 Tightening training system 22 Training unit 24 Load cell 26 Strain measuring instrument 28 PC DESCRIPTION OF SYMBOLS 30 Main body part 40 Storage part 42 Middle plate 44 Top plate 46, 52, 60 Opening part 48 Cable 50 Leg part 54 Exterior housing 55 Face part 56, 63 Through-hole 58 Contact part 60 Opening part 62 Head part 64 Processor 66 Storage part 68 Input operation unit 70 Communication unit 72 Input / output unit (I / O) 74 Database DB 76 Identification information 78 Training information
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Abstract
Description
上記目的を達成するため、本発明の締付け実習装置の一側面によれば、ねじの表面状態が異なる複数のボルトと、締付け工具を用いたナットの締付けにより前記ボルトに生じる軸力を検出する軸力センサーと、前記軸力センサーからのセンサー出力を受け、前記ボルトの表面状態を含む識別情報と検出された軸力とを関係付けるとともに前記ボルト同士の軸力の大小を表す対比図形出力を生成する処理手段とを備える。
上記目的を達成するため、本発明の締付け実習方法の一側面によれば、ねじの表面状態が異なる複数のボルトに対して締付け工具を用いてナットを締付ける工程と、前記ナットの締付けにより前記ボルトに生じる軸力を軸力センサーで検出する工程と、前記軸力センサーのセンサー出力を取り込む工程と、前記ボルトの表面状態を含む識別情報とその軸力情報とを関係付けるとともに、前記ボルト同士の軸力の大小を表す対比図形出力を生成する工程とを含む。
上記目的を達成するため、本発明の締付け実習プログラムの一側面によれば、締付け実習装置のコンピュータに実行させる締付け実習プログラムであって、ねじの表面状態が異なる複数のボルトに対して締付け工具を用いてナットを締付け、前記ナットの締付けにより前記ボルトに生じる軸力のセンサー出力を軸力センサーで取り込み、前記ボルトの表面状態を含む識別情報とその軸力とを関係付けるとともに、前記ボルト同士の軸力の大小を表す対比図形出力を生成する機能を前記コンピュータに実行させる。
上記目的を達成するため、本発明の締付け実習システムの一側面によれば、ボルトに対するナットの締付けを実習する締付け実習システムであって、ねじの表面状態が異なる複数のボルトと、締付け工具を用いたナットの締付けにより前記ボルトに生じる軸力を検出する軸力センサーとを備える締付け実習部と、前記軸力センサーと接続され、センサー出力を受け、前記ボルトの表面状態を含む識別情報と検出された軸力とを関係付けるとともに前記ボルト同士の軸力の大小を表す対比図形出力を生成する処理手段と、前記処理手段と接続され、前記対比図形出力を表示するモニターとを備える。
T=kFd ・・・(1)
なお、kは表面状態を示すトルク係数、dはボルトの呼び径を表す。
4、4-1、4-2、・・・4-N ボルト
6、6-1、6-2、・・・6-N ナット
8 締付け工具
10 10-1、10-2、・・・10-N センサー
12 情報処理部
14、32 モニター
20 締付け実習システム
22 実習部
24 ロードセル
26 ひずみ測定器
28 PC
30 本体部
40 収納部
42 中板
44 天板
46、52、60 開口部
48 ケーブル
50 脚部
54 外装筐体
55 面部
56、63 貫通孔
58 接触部
60 開口部
62 頭部
64 プロセッサ
66 記憶部
68 入力操作部
70 通信部
72 入出力部(I/O)
74 データベースDB
76 識別情報
78 実習情報
Claims (14)
- 締付け可能に設置された複数のボルトと、
各ボルトに加えられる軸力を検出する軸力センサーと、
各ボルトの識別情報と検出軸力を関係付けて各ボルト間の検出軸力を対比する対比手段と、
を備えることを特徴とする締付け実習装置。 - ねじの表面状態が異なる複数のボルトと、
締付け工具を用いたナットの締付けにより前記ボルトに生じる軸力を検出する軸力センサーと、
前記軸力センサーからのセンサー出力を受け、前記ボルトの表面状態を含む識別情報と検出された軸力とを関係付けるとともに前記ボルト同士の軸力の大小を表す対比図形出力を生成する処理手段と、
を備えることを特徴とする締付け実習装置。 - さらに、前記処理手段に接続され、前記処理手段から受けた前記対比図形出力を表示する表示手段を備えることを特徴とする請求項2に記載の締付け実習装置。
- 複数の前記ボルトを一列に並べて配置させるとともに、前記ボルトおよび前記軸力センサーを内部に収納して支持する支持ケースを備え、
前記処理手段は、前記支持ケースへの前記ボルトの配列に応じて、前記識別情報を配列した前記対比図形出力を生成することを特徴とする請求項2または請求項3に記載の締付け実習装置。 - 配置された前記ボルトの前記識別情報を記憶する記憶部を備え、
前記処理手段は、軸力の検出を契機に、前記記憶部から検出した前記ボルトの前記識別情報を読み出して、前記対比図形出力を生成することを特徴とする、請求項2ないし請求項4のいずれか1項に記載の締付け実習装置。 - 前記識別情報には、前記ボルトの表面状態を示すトルク係数が含まれ、
前記処理手段は、前記対比図形出力の軸力表示に対し前記トルク係数を関連付けて表示することを特徴とする、請求項2ないし請求項5のいずれか1項に記載の締付け実習装置。 - 前記処理手段は、検出された前記軸力と前記ボルトの識別情報から締付けトルクを算出し、前記ボルト同士の前記締付けトルクの大小を示す情報を含む前記対比図形出力を生成することを特徴とする、請求項2ないし請求項6のいずれか1項に記載の締付け実習装置。
- 複数のボルトを締付け可能に設置する工程と、
各ボルトに加えられる軸力を軸力センサーで検出する工程と、
各ボルトの識別情報と検出軸力を関係付けて各ボルト間の検出軸力を対比する工程と、
を含むことを特徴とする締付け実習方法。 - ねじの表面状態が異なる複数のボルトに対して締付け工具を用いてナットを締付ける工程と、
前記ナットの締付けにより前記ボルトに生じる軸力を軸力センサーで検出する工程と、
前記軸力センサーのセンサー出力を取り込む工程と、
前記ボルトの表面状態を含む識別情報とその軸力情報とを関係付けるとともに、前記ボルト同士の軸力の大小を表す対比図形出力を生成する工程と、
を含むことを特徴とする締付け実習方法。 - 締付け実習装置のコンピュータに実行させる締付け実習プログラムであって、
締付け可能に設置された複数のボルトの各軸力を軸力センサーにより取得し、
各ボルトの識別情報と検出軸力を関係付けて各ボルト間の検出軸力を対比する、
機能を前記コンピュータに実行させることを特徴とする締付け実習プログラム。 - 締付け実習装置のコンピュータに実行させる締付け実習プログラムであって、
ねじの表面状態が異なる複数のボルトに対して締付け工具を用いてナットを締付け、
前記ナットの締付けにより前記ボルトに生じる軸力のセンサー出力を軸力センサーで取り込み、
前記ボルトの表面状態を含む識別情報とその軸力とを関係付けるとともに、前記ボルト同士の軸力の大小を表す対比図形出力を生成する、
機能を前記コンピュータに実行させることを特徴とする締付け実習プログラム。 - 検出された前記軸力と前記ボルトの識別情報から締付けトルクを算出し、
前記ボルト同士の前記締付けトルクの大小を示す情報を含む前記対比図形出力を生成する、
機能を前記コンピュータに実行させることを特徴とする、請求項11に記載の締付け実習プログラム。 - ボルトに対するナットの締付けを実習する締付け実習システムであって、
締付け可能に設置された複数のボルトと、
各ボルトに加えられる軸力を検出する軸力センサーと、
各ボルトの識別情報と、前記軸力センサーから得られる検出軸力を関係付けて各ボルト間の検出軸力を対比する対比手段と、
を備えることを特徴とする締付け実習システム。 - ボルトに対するナットの締付けを実習する締付け実習システムであって、
ねじの表面状態が異なる複数のボルトと、締付け工具を用いたナットの締付けにより前記ボルトに生じる軸力を検出する軸力センサーとを備える締付け実習部と、
前記軸力センサーと接続され、センサー出力を受け、前記ボルトの表面状態を含む識別情報と検出された軸力とを関係付けるとともに前記ボルト同士の軸力の大小を表す対比図形出力を生成する処理手段と、
前記処理手段と接続され、前記対比図形出力を表示するモニターと、
を備えることを特徴とする締付け実習システム。
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| JP2018525001A JP6517440B2 (ja) | 2016-06-30 | 2017-06-07 | 締付け実習装置、締付け実習方法、締付け実習プログラムおよび締付け実習システム |
| CN201780040335.8A CN109477765A (zh) | 2016-06-30 | 2017-06-07 | 紧固实践装置、紧固实践方法、紧固实践程序和紧固实践系统 |
| KR1020187037613A KR102198659B1 (ko) | 2016-06-30 | 2017-06-07 | 체결 실습 장치, 체결 실습 방법, 체결 실습 프로그램 및 체결 실습 시스템 |
| SG11201811138PA SG11201811138PA (en) | 2016-06-30 | 2017-06-07 | Fastening practice device, fastening practice method, fastening practice program and fastening practice system |
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- 2017-06-07 CN CN201780040335.8A patent/CN109477765A/zh active Pending
- 2017-06-07 WO PCT/JP2017/021081 patent/WO2018003438A1/ja not_active Ceased
- 2017-06-07 TW TW106118839A patent/TWI732881B/zh active
- 2017-06-07 SG SG11201811138PA patent/SG11201811138PA/en unknown
- 2017-06-07 JP JP2018525001A patent/JP6517440B2/ja active Active
- 2017-06-07 KR KR1020187037613A patent/KR102198659B1/ko active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112106128A (zh) * | 2018-05-11 | 2020-12-18 | 株式会社华尔卡 | 凸缘紧固训练系统、装置、程序、方法和信息终端 |
| CN109377833A (zh) * | 2018-08-31 | 2019-02-22 | 芜湖鸣人汽车维修服务有限公司 | 一种螺栓练习柱 |
| CN109377833B (zh) * | 2018-08-31 | 2020-11-06 | 芜湖鸣人汽车维修服务有限公司 | 一种螺栓练习柱 |
| TWI826551B (zh) * | 2018-10-16 | 2023-12-21 | 日商華爾卡股份有限公司 | 密封施工的判定系統、判定程式、判定方法及學習系統 |
| JPWO2022059637A1 (ja) * | 2020-09-18 | 2022-03-24 | ||
| WO2022059637A1 (ja) * | 2020-09-18 | 2022-03-24 | 株式会社バルカー | 情報処理装置 |
| JP7617126B2 (ja) | 2020-09-18 | 2025-01-17 | 株式会社バルカー | 情報処理装置 |
| US12339188B2 (en) | 2020-09-18 | 2025-06-24 | Valqua, Ltd. | Information processing device |
| JP2022158023A (ja) * | 2021-04-01 | 2022-10-14 | 株式会社バルカー | 技能評価システム、技能評価プログラム、技能評価方法および技能評価装置 |
| JP7635054B2 (ja) | 2021-04-01 | 2025-02-25 | 株式会社バルカー | 技能評価システム、技能評価プログラム、技能評価方法および技能評価装置 |
| CN116296006A (zh) * | 2023-03-24 | 2023-06-23 | 江铃汽车股份有限公司 | 用于离合器工具拧紧过程的检测方法及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| SG11201811138PA (en) | 2019-01-30 |
| KR102198659B1 (ko) | 2021-01-05 |
| KR20190011281A (ko) | 2019-02-01 |
| JP6517440B2 (ja) | 2019-05-22 |
| TWI732881B (zh) | 2021-07-11 |
| TW201801861A (zh) | 2018-01-16 |
| CN109477765A (zh) | 2019-03-15 |
| JPWO2018003438A1 (ja) | 2019-04-18 |
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