Correction device and correction method for measuring jaw of vernier caliper

Abstract

The invention discloses a correcting device for a measuring jaw of a vernier caliper, and the device comprises an extrusion module and a connection module, and the extrusion module is connected through the connection module. The extrusion module comprises an outer extrusion arm and an inner extrusion arm, the connecting module comprises a center shaft, a long shaft and a short shaft, the long shaft is arranged at one end of the outer extrusion arm, the other end of the outer extrusion arm is connected with one end of the inner extrusion arm through the center shaft, the short shaft is arranged at the other end of the inner extrusion arm, and the outer extrusion arm rotates around the center shaft. Outer extrusion arms are arranged at the two ends of the long shaft in parallel, and inner extrusion arms are arranged at the two ends of the short shaft in parallel. Through the arrangement of the inner extrusion arm and the outer extrusion arm, correction of the outer measuring jaw and the inner measuring jaw of the vernier caliper can be adjusted, the grinding amount of measuring jaw repairing can be reduced, and the repairing quality and efficiency of the vernier caliper are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and particularly relates to a correction device and a correction method for the jaws of a vernier caliper. Background Art

[0002] During the process of shipbuilding, machining of parts is involved. As a measuring instrument for machining dimensions, the vernier caliper will inevitably be worn during long-term use, resulting in serious light transmission on the measuring surfaces of the jaws, increasing the measurement error. In the past, using a hammer to strike would cause damage to the vernier caliper. If all repairs rely on grinding, the repair workload is large and the repair cycle is long. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies existing in the above-mentioned prior art, and provide a correction device and a correction method for the jaws of a vernier caliper. Through the setting of the inner extrusion arm and the outer extrusion arm, the correction of the outer jaws and the inner jaws of the vernier caliper can be adjusted, the grinding amount of jaw repair can be reduced, and the repair quality and efficiency of the vernier caliper are improved.

[0004] In order to achieve the above-mentioned invention purpose, the technical solution provided by the present invention patent is as follows:

[0005] A correction device for the jaws of a vernier caliper, the device includes an extrusion module and a connection module, and the extrusion module is connected through the connection module; the extrusion module includes an outer extrusion arm and an inner extrusion arm, the connection module includes a central shaft, a long shaft and a short shaft, one end of the outer extrusion arm is provided with a long shaft, the other end of the outer extrusion arm is connected to one end of the inner extrusion arm through the central shaft, the other end of the inner extrusion arm is provided with a short shaft, the outer extrusion arm rotates around the central shaft, the long shaft is parallelly provided with the outer extrusion arms at both ends, and the short shaft is parallelly provided with the inner extrusion arms at both ends.

[0006] Further, both ends of the central shaft are fixed cylinders, the middle part of the central shaft is a clamping plate, the overall shape of the clamping plate is a cuboid, the width of the clamping plate is equal to the diameter of the fixed cylinder, threaded holes are provided on both end faces of the central shaft, and fixing screws are installed in the threaded holes; the inner extrusion arm and the outer extrusion arm are connected to the fixed cylinders at both ends of the central shaft.

[0007] Further, the inner extrusion arm is integrally long strip-shaped, connection grooves are provided at both ends of the inner extrusion arm, the connection grooves are semi-circular arcs, the connection groove at one end of the inner extrusion arm is fixedly connected to the fixed cylinder, and the other end of the inner extrusion arm is fixedly connected to the short shaft; a first space is provided between the inner extrusion arms.

[0008] Further, the short shaft is integrally cylindrical, threaded holes are provided on both end faces of the short shaft, fixing screws are installed in the threaded holes, and the connection grooves of the inner extrusion arm are fixedly connected to the side faces at both ends of the short shaft.

[0009] Further, the outer extrusion arm is integrally strip-shaped, and connection grooves are respectively arranged at both ends of the outer extrusion arm. The connection grooves are semi-circular arcs. A bearing sleeve is arranged in the connection groove at one end of the outer extrusion arm. The connection groove with the bearing sleeve is movably connected to the side surface of the central shaft. The connection groove at the other end of the outer extrusion arm is fixedly connected to the side surface of the long shaft. The connection groove of the outer extrusion arm on the central shaft is arranged outside the connection groove of the inner extrusion arm; a second space is arranged between the outer extrusion arms.

[0010] Further, the long shaft is integrally cylindrical. Threaded holes are arranged on both end faces of the long shaft, and fixing screws are installed in the threaded holes. The connection grooves of the outer extrusion arms are connected and fixed to the side surfaces at both ends of the short shaft.

[0011] A correction method for the measuring jaws of a vernier caliper, the method specifically comprising the following steps:

[0012] S1, Prepare a correction device for the measuring jaws of a vernier caliper. The device includes an extrusion module and a connection module. The extrusion module is connected through the connection module; the extrusion module includes an outer extrusion arm and an inner extrusion arm. The connection module includes a central shaft, a long shaft, and a short shaft. A long shaft is arranged at one end of the outer extrusion arm. The other end of the outer extrusion arm is connected to one end of the inner extrusion arm through the central shaft. A short shaft is arranged at the other end of the inner extrusion arm. The outer extrusion arm rotates around the central shaft. The long shaft has outer extrusion arms arranged in parallel at both ends, and the short shaft has inner extrusion arms arranged in parallel at both ends;

[0013] S2, When the tip of the outer measuring jaw of the vernier caliper is worn, place the clamping plate of the central shaft inside the root of the outer measuring jaw. At the same time, the two outer measuring jaws of the vernier caliper respectively pass through the first space in the inner extrusion arm and the second space in the outer extrusion arm and clamp the clamping plate;

[0014] S3, Rotate the outer extrusion arm so that the long shaft and the short shaft are respectively connected to the outside of the measuring end of the tip of the outer measuring jaw. Use a bench vise to clamp the short shaft and the long shaft respectively and extrude inward. The short shaft and the long shaft drive the inner extrusion arm and the outer extrusion arm to approach each other. According to the wear amount of the tip of the outer measuring jaw of the vernier caliper, adjust the position of the outer measuring jaw of the vernier caliper to complete the correction of the tip of the outer measuring jaw of the vernier caliper;

[0015] S4, When the root of the outer measuring jaw of the vernier caliper is worn, place the clamping plate of the central shaft inside the tip of the outer measuring jaw. At the same time, the two outer measuring jaws of the vernier caliper respectively pass through the first space in the inner extrusion arm and the second space in the outer extrusion arm and clamp the clamping plate;

[0016] S5. Rotate the outer extrusion arm so that the major axis and the minor axis are respectively externally connected to the measuring ends of the roots of the outer jaws. Use a bench vise to clamp the minor axis and the major axis respectively and extrude them inward. The minor axis and the major axis drive the inner extrusion arm and the outer extrusion arm to approach each other. According to the wear amount of the tips of the outer jaws of the vernier caliper, adjust the position of the outer jaws of the vernier caliper to complete the correction of the roots of the outer jaws of the vernier caliper.

[0017] S6. When the inner jaws of the vernier caliper are worn, rotate the major axis to make the outer extrusion arm close to the inner extrusion arm to form a V shape. Pass the outer jaws of the vernier caliper through the first space in the inner extrusion arm and the second space in the outer extrusion arm and rotate the vernier caliper so that the minor axis and the major axis are respectively located outside the inner jaws of the vernier caliper. Use a bench vise to clamp the minor axis and the major axis respectively and extrude them inward. The minor axis and the major axis drive the inner extrusion arm and the outer extrusion arm to approach each other. According to the wear amount of the inner jaws of the vernier caliper, adjust the position of the outer jaws of the vernier caliper to complete the correction of the inner jaws of the vernier caliper.

[0018] Based on the above technical solutions, the following technical advantages have been achieved through practical application for a correction device and a correction method for the jaws of a vernier caliper of the present invention:

[0019] 1. The correction method for the jaws of a vernier caliper of the present invention can adjust the correction of the outer jaws and the inner jaws of the vernier caliper through the setting of the inner extrusion arm and the outer extrusion arm, can reduce the grinding amount of jaw repair, and improves the repair quality and efficiency of the vernier caliper. Description of the Drawings

[0020] Figure 1 is the structural diagram of the outer extrusion arm in a correction device for the jaws of a vernier caliper of the present invention.

[0021] Figure 2 is the structural diagram of the inner extrusion arm in a correction device for the jaws of a vernier caliper of the present invention.

[0022] Figure 3 is the top view of the correction device in a correction device for the jaws of a vernier caliper of the present invention.

[0023] Figure 4 is the schematic diagram of the correction of the tip of the outer jaw of a vernier caliper in a correction method for the jaws of a vernier caliper of the present invention.

[0024] Figure 5 is the schematic diagram of the correction of the root of the outer jaw of a vernier caliper in a correction method for the jaws of a vernier caliper of the present invention.

[0025] Figure 6 is the schematic diagram of the correction of the inner jaw of a vernier caliper in a correction method for the jaws of a vernier caliper of the present invention. Detailed Embodiments

[0026] To make the objectives, technical solutions, and advantages of the present invention more clear and understandable, the present invention will be described below through specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0027] As Figures 1-6 shown, a correction device for the jaws of a vernier caliper, the device comprising an extrusion module and a connection module, the extrusion module being connected through the connection module; the extrusion module includes an outer extrusion arm 1 and an inner extrusion arm 2, the connection module includes a central shaft 3, a long shaft 5, and a short shaft 4, one end of the outer extrusion arm 1 is provided with a long shaft 5, the other end of the outer extrusion arm 1 is connected to one end of the inner extrusion arm 2 through a central shaft 3, the other end of the inner extrusion arm 2 is provided with a short shaft 4, the outer extrusion arm 1 rotates around the central shaft 3, the long shaft 5 is provided with parallel outer extrusion arms 1 at both ends, and the short shaft 4 is provided with parallel inner extrusion arms 2 at both ends.

[0028] Both ends of the central shaft 3 are fixed cylinders, the middle part of the central shaft 3 is a clamping plate, the clamping plate is integrally rectangular, the width of the clamping plate is equal to the diameter of the fixed cylinder, threaded holes are provided on both end faces of the central shaft 3, and fixing screws 6 are installed in the threaded holes; the inner extrusion arm 2 and the outer extrusion arm 1 are connected to the fixed cylinders at both ends of the central shaft 3.

[0029] The inner extrusion arm 2 is integrally strip-shaped, connection grooves are provided at both ends of the inner extrusion arm 2, the connection grooves are semi-circular arcs, the connection groove at one end of the inner extrusion arm 2 is fixedly connected to the fixed cylinder, and the other end of the inner extrusion arm 2 is fixedly connected to the short shaft 4; a first space is provided between the inner extrusion arms 2.

[0030] The short shaft 4 is integrally cylindrical, threaded holes are provided on both end faces of the short shaft 4, fixing screws 6 are installed in the threaded holes, and the connection grooves of the inner extrusion arm 2 are fixedly connected to the side faces at both ends of the short shaft 4.

[0031] The outer extrusion arm 1 is integrally strip-shaped, connection grooves are respectively provided at both ends of the outer extrusion arm 1, the connection grooves are semi-circular arcs, a bearing sleeve 7 is provided in the connection groove at one end of the outer extrusion arm 1, the connection groove provided with the bearing sleeve 7 is movably connected to the side face of the central shaft 3, the connection groove at the other end of the outer extrusion arm 1 is fixedly connected to the side face of the long shaft 5, and the connection groove of the outer extrusion arm 1 on the central shaft 3 is provided outside the connection groove of the inner extrusion arm 2; a second space is provided between the outer extrusion arms 1.

[0032] The long shaft 5 is integrally cylindrical, threaded holes are provided on both end faces of the long shaft 5, fixing screws 6 are installed in the threaded holes, and the connection grooves of the outer extrusion arm 1 are fixedly connected to the side faces at both ends of the short shaft 4.

[0033] The fixing screw 6 seals the end faces of the central shaft 3, the long shaft 5 and the short shaft 4, preventing the outer extrusion arm 1 and the inner extrusion arm 2 from falling off during use, and improving the stability of the device during use.

[0034] A correction method for the measuring jaws of a vernier caliper, the method specifically comprising the following steps:

[0035] S1. Prepare a correction device for the measuring jaws of a vernier caliper. The device includes an extrusion module and a connection module, and the extrusion module is connected through the connection module; the extrusion module includes an outer extrusion arm 1 and an inner extrusion arm 2, the connection module includes a central shaft 33, a long shaft 5 and a short shaft 4. One end of the outer extrusion arm 1 is provided with a long shaft 5, the other end of the outer extrusion arm 1 is connected to one end of the inner extrusion arm 2 through a central shaft 3, the other end of the inner extrusion arm 2 is provided with a short shaft 4, the outer extrusion arm 1 rotates around the central shaft 3, the long shaft 5 has the outer extrusion arms 1 arranged in parallel at both ends, and the short shaft 4 has the inner extrusion arms 2 arranged in parallel at both ends;

[0036] S2. When the tip of the outer measuring jaw 9 of the vernier caliper is worn, place the clamping plate of the central shaft 3 inside the root of the outer measuring jaw 9. At the same time, the two outer measuring jaws 9 of the vernier caliper respectively pass through the first space in the inner extrusion arm 2 and the second space in the outer extrusion arm 1 and clamp the clamping plate;

[0037] S3. Rotate the outer extrusion arm 1 so that the long shaft 5 and the short shaft 4 are respectively connected to the outside of the measuring end of the tip of the outer measuring jaw 9. Use a bench vise to clamp the short shaft 4 and the long shaft 5 respectively and extrude them inward. The short shaft 4 and the long shaft 5 drive the inner extrusion arm 2 and the outer extrusion arm 1 to approach each other. According to the wear amount of the tip of the outer measuring jaw 9 of the vernier caliper, adjust the position of the outer measuring jaw 9 of the vernier caliper to complete the correction of the tip of the outer measuring jaw 9 of the vernier caliper;

[0038] S4. When the root of the outer measuring jaw 9 of the vernier caliper is worn, place the clamping plate of the central shaft 3 inside the tip of the outer measuring jaw 9. At the same time, the two outer measuring jaws 9 of the vernier caliper respectively pass through the first space in the inner extrusion arm 2 and the second space in the outer extrusion arm 1 and clamp the clamping plate;

[0039] S5. Rotate the outer extrusion arm 1 so that the long shaft 5 and the short shaft 4 are respectively connected to the outside of the measuring end of the root of the outer measuring jaw 9. Use a bench vise to clamp the short shaft 4 and the long shaft 5 respectively and extrude them inward. The short shaft 4 and the long shaft 5 drive the inner extrusion arm 2 and the outer extrusion arm 1 to approach each other. According to the wear amount of the tip of the outer measuring jaw 9 of the vernier caliper, adjust the position of the outer measuring jaw 9 of the vernier caliper to complete the correction of the root of the outer measuring jaw 9 of the vernier caliper;

[0040] S6. When the inner jaws 8 of the vernier caliper are worn, rotate the long shaft 5 to make the outer extrusion arm 1 approach the inner extrusion arm 2 to form a V shape. Pass the outer jaws 9 of the vernier caliper through the first space in the inner extrusion arm 2 and the second space in the outer extrusion arm 1 and rotate the vernier caliper so that the short shaft 4 and the long shaft 5 are respectively located outside the inner jaws 8 of the vernier caliper. Use a bench vice to clamp the short shaft 4 and the long shaft 5 respectively and extrude inward. The short shaft 4 and the long shaft 5 drive the inner extrusion arm 2 and the outer extrusion arm 1 to approach each other. According to the wear amount of the inner jaws 8 of the vernier caliper, adjust the position of the outer jaws 9 of the vernier caliper to complete the correction of the inner jaws 8 of the vernier caliper.

[0041] The present invention can correct the inner and outer jaws 9 of the vernier caliper, has wide applicability, the extrusion force on the jaws is the same, and the deformation is basically uniform. It can reduce the grinding amount of jaw repair, is easy to operate, convenient and reliable, thereby improving the repair quality and efficiency of the vernier caliper.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that; still can modify the specific implementation manners of the invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered by the scope of the technical solutions claimed by the present invention.

Claims

1. A correction device for the measuring jaws of a vernier caliper, characterized in that, The device includes an extrusion module and a connection module, and the extrusion module is connected through the connection module; the extrusion module includes an outer extrusion arm and an inner extrusion arm, the connection module includes a central shaft, a long shaft and a short shaft, one end of the outer extrusion arm is provided with a long shaft, the other end of the outer extrusion arm is connected to one end of the inner extrusion arm through the central shaft, the other end of the inner extrusion arm is provided with a short shaft, the outer extrusion arm rotates around the central shaft, the long shaft has outer extrusion arms arranged in parallel at both ends, and the short shaft has inner extrusion arms arranged in parallel at both ends.

2. The calibration device for the jaws of a vernier caliper according to claim 1, characterized in that, Both ends of the central shaft are fixed cylinders, the middle part of the central shaft is a clamping plate, the clamping plate is a cuboid as a whole, the width of the clamping plate is equal to the diameter of the fixed cylinder, threaded holes are arranged on both end faces of the central shaft, and fixing screws are installed in the threaded holes; the inner extrusion arm and the outer extrusion arm are connected to the fixed cylinders at both ends of the central shaft.

3. The correction device for the jaws of a vernier caliper according to claim 2, wherein, The inner extrusion arm is a long strip as a whole, connection grooves are arranged at both ends of the inner extrusion arm, the connection grooves are semi-circular arcs, the connection groove at one end of the inner extrusion arm is fixedly connected to the fixed cylinder, and the other end of the inner extrusion arm is fixedly connected to the short shaft; a first space is arranged between the inner extrusion arms.

4. The correction device for the measuring jaws of a vernier caliper according to claim 3, characterized in that, The short shaft is a cylinder as a whole, threaded holes are arranged on both end faces of the short shaft, fixing screws are installed in the threaded holes, and the connection grooves of the inner extrusion arm are fixedly connected to the side faces at both ends of the short shaft.

5. The correction device for the measuring jaws of a vernier caliper according to claim 3, characterized in that, The outer extrusion arm is a long strip as a whole, connection grooves are respectively arranged at both ends of the outer extrusion arm, the connection grooves are semi-circular arcs, a bearing sleeve is arranged in the connection groove at one end of the outer extrusion arm, the connection groove provided with the bearing sleeve is movably connected to the side face of the central shaft, the connection groove at the other end of the outer extrusion arm is fixedly connected to the side face of the long shaft, and the connection groove of the outer extrusion arm on the central shaft is arranged outside the connection groove of the inner extrusion arm; A second space is arranged between the outer extrusion arms.

6. The correction device for the measuring jaws of a vernier caliper according to claim 5, characterized in that, The long shaft is a cylinder as a whole, threaded holes are arranged on both end faces of the long shaft, fixing screws are installed in the threaded holes, and the connection grooves of the outer extrusion arm are fixedly connected to the side faces at both ends of the short shaft.

7. A correction method for the measuring jaws of a vernier caliper, characterized in that, The method specifically includes the following steps: S1. Prepare a correction device for the measuring jaws of a vernier caliper. The device includes an extrusion module and a connection module, and the extrusion module is connected through the connection module; the extrusion module includes an outer extrusion arm and an inner extrusion arm, the connection module includes a central shaft, a long shaft and a short shaft, one end of the outer extrusion arm is provided with a long shaft, the other end of the outer extrusion arm is connected to one end of the inner extrusion arm through the central shaft, the other end of the inner extrusion arm is provided with a short shaft, the outer extrusion arm rotates around the central shaft, the long shaft has outer extrusion arms arranged in parallel at both ends, and the short shaft has inner extrusion arms arranged in parallel at both ends; S2. When the tip of the outer measuring jaw of the vernier caliper is worn, place the clamping plate of the central shaft inside the root of the outer measuring jaw, and at the same time, the two outer measuring jaws of the vernier caliper respectively pass through the first space in the inner extrusion arm and the second space in the outer extrusion arm and clamp the clamping plate; S3. Rotate the outer extrusion arm so that the long shaft and the short shaft are respectively connected to the outside of the measuring end of the tip of the outer measuring jaw. Use a bench vise to clamp the short shaft and the long shaft respectively and extrude inward. The short shaft and the long shaft drive the inner extrusion arm and the outer extrusion arm to approach each other. According to the wear amount of the tip of the outer measuring jaw of the vernier caliper, adjust the position of the outer measuring jaw of the vernier caliper to complete the correction of the tip of the outer measuring jaw of the vernier caliper. S4. When the root of the outer jaws of the vernier caliper is worn, place the clamping plate of the central shaft inside the tip of the outer jaws. At the same time, the two outer jaws of the vernier caliper respectively pass through the first space in the inner extrusion arm and the second space in the outer extrusion arm and clamp the clamping plate. S5. Rotate the outer extrusion arm so that the long axis and the short axis are respectively connected to the outside of the measuring end of the root of the outer jaws. Use a bench vise to clamp the short axis and the long axis respectively and squeeze them inward. The short axis and the long axis drive the inner extrusion arm and the outer extrusion arm to approach each other. According to the wear amount of the tip of the outer jaws of the vernier caliper, adjust the position of the outer jaws of the vernier caliper to complete the correction of the root of the outer jaws of the vernier caliper. S6. When the inner jaws of the vernier caliper are worn, rotate the long axis to make the outer extrusion arm close to the inner extrusion arm to form a V shape. Pass the outer jaws of the vernier caliper through the first space in the inner extrusion arm and the second space in the outer extrusion arm and rotate the vernier caliper so that the short axis and the long axis are respectively located outside the inner jaws of the vernier caliper. Use a bench vise to clamp the short axis and the long axis respectively and squeeze them inward. The short axis and the long axis drive the inner extrusion arm and the outer extrusion arm to approach each other. According to the wear amount of the inner jaws of the vernier caliper, adjust the position of the outer jaws of the vernier caliper to complete the correction of the inner jaws of the vernier caliper.

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