CN110553562A - Geometric quantity measuring and adjusting device - Google Patents

Abstract

The invention provides a geometric quantity measurement and adjustment device, belonging to the field of measurement technology, comprising: a base, a fixed bracket, a fine-tuning device, a lower wedge, a dovetail, an upper wedge, and a V-shaped bracket; by installing the fixed bracket and The guide bracket is installed with a fine-tuning device on the fixed bracket, and is fixedly connected with the lower wedge through the screw rod of the fine-tuning device. The block moves in the dovetail groove of the base, while the lower wedge pushes the upper wedge and the V-shaped bracket to move in the vertical direction through the inclined plane, and the micrometer device realizes fast and accurate quantitative adjustment, shortens the adjustment time, and improves work efficiency.

Description

A geometric quantity measuring and adjusting device

technical field

The invention relates to the field of measurement technology, in particular to a geometric quantity measurement and adjustment device.

Background technique

In the field of geometric quantity measurement, when measuring the shape and position errors of parts such as coaxiality, position, and roundness, V-shaped blocks are usually used as supporting devices. In order to obtain the best measurement status of the measured elements, micro-adjustments are required. The best way is to attach a metal sheet or paper sheet to the bottom of the V-shaped block or the side of the V-shaped groove for multiple trial plug adjustments. This adjustment requires repeated trial adjustments, measurements, and re-adjustments based on personnel experience. The work is cumbersome and time-consuming. It takes a lot of work, even if the final adjustment is successful, there will still be some adjustment errors, which will affect the accuracy of the measurement results, and the stability is poor and the efficiency is low.

Contents of the invention

In order to overcome the defects of the V-shaped block device used in the above-mentioned geometric quantity measurement process, repeated trial adjustments are required, the work is cumbersome, the adjustment error is large, and the work efficiency is low. The present invention provides a geometric quantity measurement and adjustment device, using a fine-tuning device, Quantitative adjustment of components is realized by controlling the amount of movement.

The technical solution adopted by the present invention to solve the technical problem is: a geometric quantity measurement and adjustment device, including a base, a V-shaped bracket, a fixed bracket, a guide bracket, a fine-tuning device, a lower wedge, and an upper wedge. A fixed bracket and a guide bracket are installed, and a fine-tuning device is installed on the fixed bracket. T-shaped brackets are fixedly connected, and the middle part of both sides of the upper wedge is provided with a T-shaped slot, and a pulley is arranged in the T-shaped slot, and the pulley is installed on the guide bracket through the pulley shaft.

The lower part of the base is provided with a groove, the upper part of the base is provided with a dovetail groove, and the upper part of the base is also provided with two screw holes for installing a fixing bracket and two screw holes for installing two guide brackets.

The fixing bracket is convex, the upper part is provided with a through hole, the upper end of the through hole is provided with a screw hole, and the lower part is provided with two through holes connected with the base, and is fixedly connected with the base through two fourth fastening screws.

The fine-tuning device is a micrometer screw, which is installed in the through hole on the upper part of the fixed bracket by connecting the first fastening screw. There is a 1mm scribe line on the fixed sleeve, a 0.01mm scribe line on the micrometer tube, and a 0.01mm scribe line on the micrometer cylinder. A handle is provided, and the differential cylinder can rotate around the fixed sleeve. The front end of the screw is provided with a groove, and the screw is fixedly connected with the lower wedge through the second fastening screw and the groove.

The bottom surface of the lower wedge is provided with four screw holes, and the dovetail wing is installed through the four fifth fastening screws, which can move in the dovetail groove of the base, and there are blind holes in the connecting part with the screw rod, and there are four at the bottom of the dovetail wing Evenly distributed counterbore and through hole.

The upper surface of the upper wedge is provided with two screw holes corresponding to the through holes of the V-shaped bracket, and a T-shaped slot is arranged in the middle of both sides of the upper wedge.

The upper and lower wedges are combined by an inclined working surface, and the angle of the inclined surface is not greater than 15°. Five oil grooves are respectively arranged on the inclined working surface, and the oil grooves of the upper and lower wedges are staggered from each other.

The bottom surface of the groove of the V-shaped bracket is provided with two counterbores and through holes, and the V-shaped bracket is fixedly connected with the upper wedge by two bolts.

The guide bracket is "L"-shaped, with through holes at both ends, one on the left and right sides of the base, fixedly connected to the base through the third fastening screw, and a pulley shaft installed on the upper end of the guide bracket through nuts, A pulley is installed at one end of the pulley shaft, and the pulley is arranged in the T-shaped groove of the upper wedge and can move relatively.

The beneficial effects of the present invention are: the present invention adopts the above-mentioned structure, pushes the lower wedge to move horizontally on the base through the differential cylinder and the screw of the fine-tuning device, and the lower wedge pushes the upper wedge and the V-shaped bracket to move in the vertical direction. The number of engraved lines that the cylinder rotates relative to the fixed sleeve can realize the quantitative adjustment of the parts installed on the V-shaped bracket. The device has a simple structure and is easy to operate, which effectively avoids the blindness of adjustment, shortens the adjustment time, and reduces the work intensity of personnel. ,Improve work efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is the right side view of the present invention.

Figure 3 is a left side view and a schematic sectional view of the lower wedge.

Fig. 4 is a schematic diagram of the structure of the trimming device.

In the figure: 1, the base; 2, the fine-tuning device; 2-1, the differential cylinder; 2-2, the handle; 2-3, the fixed sleeve; 2-4, the connecting cylinder; 2-5, the screw; 2-6, Groove; 3. Fixing bracket; 4. First fastening screw; 5. Second fastening screw; 6. Blind hole; 7. V-shaped bracket; 8. Guide bracket; 9. Upper wedge; 10. Lower wedge block; 11, the third fastening screw; 12, the fourth fastening screw; 13, nut; 14, pulley shaft; 15, bolt; 16, T-shaped slot; 17, pulley; 18, dovetail wing; 19, dovetail groove ; 20, the inclined working surface; 21, the oil tank; 22, the fifth fastening screw.

Detailed ways

Further details will be given below in conjunction with the examples shown in the accompanying drawings.

As shown in Figures 1 and 2, a geometric measurement and adjustment device includes a base 1, a V-shaped bracket 7, a fixed bracket 3, a fine-tuning device 2, a guide bracket 8, a lower wedge 10, and an upper wedge 9. A groove is provided at the bottom of the base 1, a dovetail groove 19 is provided at the top of the base 1, a fixing bracket 3 is installed on the base 1 through two fourth fastening screws 12, and a fixing bracket 3 is installed on the fixing bracket 3 through the first fastening screw 4 and The connecting cylinder 2-4 is equipped with a fine-tuning device 2, and the screw rod 2-5 of the fine-tuning device 2 is inserted into the blind hole 6 of the lower wedge 10, and is fixed with the lower wedge 10 by the second fastening screw 5 and the groove 2-6 connection, the bottom surface of the lower wedge 10 is equipped with a dovetail wing 18 through four fifth fastening screws 22, which can move in the dovetail groove 19 of the base, and the upper wedge 9 is fixedly connected with the V-shaped bracket 7 through two bolts 15, on the base Two guide brackets 8 are installed on both sides of 1 through the third fastening screw 11, a pulley shaft 14 is installed on the upper end of the guide bracket 8 through a nut 13, and a pulley 17 is installed on one end of the pulley shaft 14, and the pulley 17 is placed on the In the T-shaped slot 16 of the wedge 9, and can relatively move in the T-shaped slot 16.

When in use, turn the microtube through the handle in the fine-tuning device, the screw pushes the lower wedge to move horizontally along the dovetail groove of the base, and the lower wedge pushes the upper wedge and the V-shaped bracket to move vertically, which can realize the V-shaped bracket The parts are installed on the top for micro-adjustment, and the adjustment amount is determined by the number of engraved lines that the differential tube rotates relative to the fixed sleeve. This device is easy to operate, and can be used for rapid and accurate adjustment in the measurement of geometrical shape and position errors to improve work efficiency.

Claims (9)

1. A geometric quantity measurement and adjustment device, comprising a base (1), a V-shaped support (7), characterized in that it also includes a fixed support (3), a guide support (8), a fine-tuning device (2), and a lower wedge (10), the upper wedge (9), fixed bracket (3) and guide bracket (8) are installed on the base (1), fine-tuning device (2) is installed on the fixed bracket (3), fine-tuning device (2) ) screw (2-5) is fixedly connected with the lower wedge (10), and the bottom of the lower wedge (10) is equipped with a dovetail (18), which can move in the dovetail groove (19) of the base (1), and the upper wedge (9) is fixedly connected with the V-shaped support (7), and the middle part of both sides of the upper wedge (9) is provided with a T-shaped groove (16), and a pulley (17) is installed in the T-shaped groove (16). 2. A geometric quantity measurement and adjustment device according to claim 1, characterized in that: the bottom of the base (1) is provided with a groove, the upper part of the base (1) is provided with a dovetail groove (19), and the base (1) The upper part is also provided with two screw holes for installing the fixing bracket (3) and screw holes for installing two guide brackets (8). 3. A geometric quantity measurement and adjustment device according to claim 1, characterized in that: the fixed bracket (3) is convex, the upper part is provided with a through hole, the upper end of the through hole is provided with a screw hole, and the lower part is provided with a The two through holes connected to the base (1) are fixedly connected to the base (1) through two fourth fastening screws (12). 4. A geometric quantity measurement and adjustment device according to claim 1, characterized in that: the fine-tuning device (2) is a micrometer screw, which is connected by the first fastening screw (2-4) and the first fastening screw (4) Installed in the through hole on the upper part of the fixed bracket (3), the fixed sleeve (2-3) has a 1mm score line, the micrometer tube (2-1) has a 0.01mm score line, and the end surface of the microtube (2-1) A handle (2-2) is provided, the microtube (2-1) can rotate around the fixed sleeve (2-3), the front end of the screw rod (2-5) is provided with a groove (2-6), and the screw rod (2-5) ) is fixedly connected with the lower wedge (10) through the second fastening screw (5), the groove (2-6). 5. A geometric measurement and adjustment device according to claim 1, characterized in that four screw holes are provided on the bottom surface of the lower wedge (10), and four fifth fastening screws (22) are installed with four screw holes. The dovetail wing (18) has a blind hole (6) in the connecting part with the screw rod (2-5), and there are 4 evenly distributed counterbores and through holes at the bottom of the dovetail wing (18). 6. A geometric measurement and adjustment device according to claim 1, characterized in that: the upper surface of the upper wedge (9) is provided with two screw holes corresponding to the through hole of the V-shaped bracket (7), and the upper wedge T-shaped slots (16) are arranged in the middle of both sides of the block (9). 7. A geometric quantity measurement and adjustment device according to claim 1, characterized in that: said upper and lower wedges are combined through an inclined working surface (20), and the angle of the inclined surface is not greater than 15°. Five oil grooves (21) are arranged respectively, and the upper and lower wedge oil grooves (21) are mutually staggered. 8. A kind of geometric quantity measuring and adjusting device according to claim 1, characterized in that: the bottom surface of the groove of the V-shaped support (7) has two counterbores and through holes, and the V-shaped support passes through two bolts ( 15) It is fixedly connected with the upper wedge (9). 9. A geometric quantity measurement and adjustment device according to claim 1, characterized in that: the guide bracket (8) is in the shape of an "L", with through holes provided at both ends, on the left and right sides of the base (1). One is installed on each side, fixedly connected with the base (1) through the third fastening screw (11), and a pulley shaft (14) is installed on the upper end of the guide bracket (8) through a nut (13). On the pulley shaft (14) A pulley (17) is installed at one end, and the pulley (17) is arranged in the T-shaped groove (16) of the upper wedge (9) and can move relatively.