Auxiliary device and method for vernier caliper base plane differential repair

Abstract

The auxiliary device comprises a grinding flat plate, a fixing module and a measuring module, the fixing module is installed on the grinding flat plate, the measuring module is installed on the fixing module, the fixing module comprises a body and a positioning screw, a positioning hole is formed in the side face of the body, and the positioning screw is installed on the fixing module. A measuring hole is formed in the upper end face of the fixing module, a groove is formed in the lower end face of the fixing module, a caliper body of the vernier caliper is installed in the groove, the measuring module comprises a differential device, the differential device is installed in the measuring hole, and the bottom of the differential device is connected with the upper end of the caliper body of the vernier caliper. The two differential devices are arranged to accurately adjust the grinding amount according to the abrasion condition of the base surface of the caliper. The device has the advantages of high speed, high precision and convenience in operation, and can be repeatedly used.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, and in particular relates to an auxiliary device and method for repairing the base surface differential of a vernier caliper. Background Technology

[0002] The vernier caliper's scale body and vernier frame are made of the same material. After frequent use, the scale body's scale body will experience localized wear. When inspecting the scale body's scale body using the light gap method with a knife-edge ruler on the outer measuring jaws, it is often found that the middle is concave, the ends are convex, and there are differences in flatness. When checking the parallelism of the scale body's scale body with an outside micrometer, it is found that the parallelism does not meet the requirements. The scale body and vernier frame are very unstable and inflexible when pulled together. All of the above deviations will cause indication errors. In the past, manual grinding with a metal backing was mainly used. Generally, the repair work of the scale body's scale body is quite large, and the flatness is difficult to restore, or expensive tools such as grinding machines are purchased for repair. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an auxiliary device and method for differential repair of the base surface of a vernier caliper. This method uses two differential devices to precisely adjust the grinding amount according to the wear condition of the caliper base surface. Using this invention offers advantages such as high speed, high precision, convenient operation, and reusability.

[0004] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows: An auxiliary device for repairing the differential function of a vernier caliper base surface includes a grinding plate, a fixing module, and a measuring module. The fixing module is mounted on the grinding plate, and the measuring module is mounted on the fixing module. The fixing module includes a body and a positioning screw. The side of the body is provided with a positioning hole, in which the positioning screw is installed. The upper end face of the fixing module is provided with a measuring hole, and the lower end face of the fixing module is provided with a groove, in which the body of the vernier caliper is installed. The measuring module includes a differential device, which is installed in the measuring hole, and the bottom of the differential device is connected to the upper end of the body of the vernier caliper.

[0005] Furthermore, the main body is generally rectangular, and the measuring holes at the upper end of the main body include a first measuring hole and a second measuring hole. The first measuring hole is located above the second measuring hole, and the first measuring hole and the second measuring hole are concentrically arranged. The second measuring hole is connected to the groove.

[0006] Furthermore, the diameter of the first measuring hole is 0.005-0.015 mm smaller than the diameter of the differentiating device, the depth of the first measuring hole is 17 mm, the diameter of the second measuring hole is 7 mm, the depth of the second measuring hole is 18.5 mm, and the diameter of the second measuring hole is smaller than the diameter of the first measuring hole.

[0007] Furthermore, the groove includes a first groove and a second groove. The first groove is disposed at the bottom of the body, and the second groove is disposed at the middle of the upper end of the first groove. The upper end of the second groove is connected to the second measuring hole.

[0008] Furthermore, the width of the first groove is 24mm, the depth of the first groove is 2.5mm, the length of the first groove is the same as the length of the body, the width of the second groove is 0.05-0.10mm greater than the thickness of the vernier caliper body, and the depth of the second groove is 12mm.

[0009] Furthermore, the positioning hole is located on the side of the body, communicates with the second groove, and is threadedly connected to the positioning screw.

[0010] A method for repairing the base surface differential of a vernier caliper, the method specifically includes the following steps: S1. Prepare an auxiliary device for repairing the differential function of a vernier caliper base surface. The device includes a grinding plate, a fixing module, and a measuring module. The fixing module is mounted on the grinding plate, and the measuring module is mounted on the fixing module. The fixing module includes a body and a positioning screw. The side of the body is provided with a positioning hole, and the positioning screw is installed in the positioning hole. The upper end face of the fixing module is provided with a measuring hole, and the lower end face of the fixing module is provided with a groove, in which the body of the vernier caliper is installed. The measuring module includes a differential device, which is installed in the measuring hole. The bottom of the differential device is connected to the upper end of the body of the vernier caliper. S2, Place the vernier caliper body to be repaired into the second groove of the auxiliary device, place the vernier caliper with the auxiliary device facing down on the measuring plate, and use the measuring surface of the differential screw to contact the non-working surface of the caliper body as the zero position; S3, the parallelism error of the vernier caliper is measured by the differential device, and the differential screw is adjusted. The grinding amount is 0.01-0.02mm in one go; S4. After adjusting the grinding amount, insert the positioning screw into the positioning hole to fix the scale body. Place the auxiliary device and the scale body on the grinding plate, fix the auxiliary device by hand and grind to complete the grinding of the vernier caliper.

[0011] Based on the above technical solution, the auxiliary device and method for repairing the base surface differential of vernier calipers, as per this invention patent, have achieved the following technical advantages through practical application: 1. This invention provides an auxiliary device for the differential repair of the base surface of a vernier caliper. It features two differential devices that precisely adjust the grinding amount according to the wear condition of the caliper base surface. This invention offers advantages such as high speed, high precision, ease of operation, and reusability. Attached Figure Description

[0012] Figure 1This is a diagram showing the usage status of an auxiliary device in an auxiliary device used for repairing the differential surface of a vernier caliper.

[0013] Figure 2 This is a sectional view of the main body of an auxiliary device used for differential repair of the base surface of a vernier caliper.

[0014] Figure 3 This is a side view of the main body of an auxiliary device used for differential repair of the base surface of a vernier caliper. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided with reference to the accompanying drawings. The invention is described using specific examples shown. However, it should be understood that these descriptions are merely exemplary. This description is intended not to limit the scope of the invention. Furthermore, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the invention. Example 1

[0016] like Figure 1-3 As shown, an auxiliary device for repairing the differential surface of a vernier caliper includes a grinding plate 4, a fixing module, and a measuring module. The fixing module is mounted on the grinding plate 4, and the measuring module is mounted on the fixing module. The fixing module includes a body 3 and a positioning screw 1. The side of the body 3 is provided with a positioning hole 305, in which the positioning screw 1 is installed. The upper end face of the fixing module is provided with a measuring hole, and the lower end face of the fixing module is provided with a groove, in which the body of the vernier caliper 5 is installed. The measuring module includes a differential device 2, which is installed in the measuring hole. The bottom of the differential device 2 is connected to the upper end of the body of the vernier caliper 5.

[0017] The main body 3 is generally rectangular. The measuring holes at the upper end of the main body include a first measuring hole 301 and a second measuring hole 302. The first measuring hole 301 is located at the upper end of the second measuring hole 302. The first measuring hole 301 and the second measuring hole 302 are concentrically arranged. The second measuring hole 302 is connected to the groove.

[0018] The diameter of the first measuring hole 301 is 0.005-0.015 mm smaller than the diameter of the differentiating device 2, and the depth of the first measuring hole 301 is 17 mm. The diameter of the second measuring hole 302 is 7 mm, and the depth of the second measuring hole 302 is 18.5 mm. The diameter of the second measuring hole 302 is smaller than the diameter of the first measuring hole 301.

[0019] The groove includes a first groove 303 and a second groove 304. The first groove 303 is disposed at the bottom of the body 3, and the second groove 304 is disposed at the middle of the upper end of the first groove 303. The upper end of the second groove 304 is connected to the second measuring hole 302.

[0020] The first groove 303 has a width of 24mm, a depth of 2.5mm, and a length that is the same as the length of the body 3. The second groove 304 has a width that is 0.05-0.10mm greater than the thickness of the vernier caliper 5, and a depth of 12mm.

[0021] The positioning hole 305 is provided on the side of the body 3. The positioning hole 305 communicates with the second groove 304 and is threadedly connected to the positioning screw 1. Example 2

[0022] A method for repairing the base surface differential of a vernier caliper, the method specifically includes the following steps: S1. Prepare an auxiliary device for repairing the differential function of a vernier caliper base surface. The device includes a grinding plate 4, a fixing module, and a measuring module. The fixing module is installed on the grinding plate 4, and the measuring module is installed on the fixing module. The fixing module includes a body 3 and a positioning screw 1. The side of the body 3 is provided with a positioning hole 305, and the positioning screw 1 is installed in the positioning hole 305. The upper end face of the fixing module is provided with a measuring hole, and the lower end face of the fixing module is provided with a groove, in which the body of the vernier caliper 5 is installed. The measuring module includes a differential device 2, which is installed in the measuring hole. The bottom of the differential device 2 is connected to the upper end of the body of the vernier caliper 5. S2, Place the vernier caliper 5 to be repaired into the second groove 304 of the auxiliary device, and place the vernier caliper 5 with the auxiliary device in the first groove 303 facing down on the measuring plate. Use the measuring surface of the differential screw to contact the non-working surface of the caliper body as the zero position. S3, measure the parallelism error of the vernier caliper 5 through the differential device 2, and adjust the differential screw. The grinding amount in one pass is 0.01-0.02mm. S4. After adjusting the grinding amount, insert the positioning screw 1 into the positioning hole 305 to fix the scale body. Place the auxiliary device and the scale body on the grinding plate 4, fix the auxiliary device by hand and grind to complete the grinding of the vernier caliper 5.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, the scope of the invention is not limited to this. Those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solution claimed in the present invention.

Claims

1. An auxiliary device for repairing the differential surface of a vernier caliper, characterized in that, The device includes a grinding plate, a fixing module, and a measuring module. The fixing module is mounted on the grinding plate, and the measuring module is mounted on the fixing module. The fixing module includes a body and a positioning screw. The side of the body is provided with a positioning hole, in which the positioning screw is installed. The upper end face of the fixing module is provided with a measuring hole, and the lower end face of the fixing module is provided with a groove, in which the body of a vernier caliper is installed. The measuring module includes a differential device, which is installed in the measuring hole, and the bottom of the differential device is connected to the upper end of the body of the vernier caliper.

2. The auxiliary device for repairing the base surface differential of a vernier caliper according to claim 1, characterized in that, The main body is rectangular in shape. The measuring holes at the upper end of the main body include a first measuring hole and a second measuring hole. The first measuring hole is located above the second measuring hole. The first measuring hole and the second measuring hole are concentrically arranged. The second measuring hole is connected to the groove.

3. The auxiliary device for repairing the base surface differential of a vernier caliper according to claim 2, characterized in that, The diameter of the first measuring hole is 0.005-0.015 mm smaller than the diameter of the differentiating device, and the depth of the first measuring hole is 17 mm. The diameter of the second measuring hole is 7 mm, and the depth of the second measuring hole is 18.5 mm. The diameter of the second measuring hole is smaller than the diameter of the first measuring hole.

4. The auxiliary device for repairing the base surface differential of a vernier caliper according to claim 2, characterized in that, The groove includes a first groove and a second groove. The first groove is located at the bottom of the body, and the second groove is located at the middle of the upper end of the first groove. The upper end of the second groove is connected to the second measuring hole.

5. An auxiliary device for repairing the base surface differential of a vernier caliper according to claim 4, characterized in that, The width of the first groove is 24mm, the depth of the first groove is 2.5mm, the length of the first groove is the same as the length of the body, the width of the second groove is 0.05-0.10mm larger than the thickness of the vernier caliper body, and the depth of the second groove is 12mm.

6. The auxiliary device for repairing the base surface differential of a vernier caliper according to claim 5, characterized in that, The positioning hole is located on the side of the body, and the positioning hole communicates with the second groove. The positioning hole is threadedly connected to the positioning screw.

7. A method for repairing the differential surface of a vernier caliper, characterized in that, The method specifically includes the following steps: S1. Prepare an auxiliary device for repairing the differential function of a vernier caliper base surface. The device includes a grinding plate, a fixing module, and a measuring module. The fixing module is mounted on the grinding plate, and the measuring module is mounted on the fixing module. The fixing module includes a body and a positioning screw. The side of the body is provided with a positioning hole, and the positioning screw is installed in the positioning hole. The upper end face of the fixing module is provided with a measuring hole, and the lower end face of the fixing module is provided with a groove, in which the body of the vernier caliper is installed. The measuring module includes a differential device, which is installed in the measuring hole. The bottom of the differential device is connected to the upper end of the body of the vernier caliper. S2, Place the vernier caliper body to be repaired into the second groove of the auxiliary device, place the vernier caliper with the auxiliary device facing down on the measuring plate, and use the measuring surface of the differential screw to contact the non-working surface of the caliper body as the zero position; S3, the parallelism error of the vernier caliper is measured by the differential device, and the differential screw is adjusted. The grinding amount is 0.01-0.02mm in one go; S4. After adjusting the grinding amount, insert the positioning screw into the positioning hole to fix the scale body. Place the auxiliary device and the scale body on the grinding plate, fix the auxiliary device by hand and grind to complete the grinding of the vernier caliper.

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