Marking tool based on height vernier scale

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a marking tool based on a height vernier scale, which comprises a base, a main scale and a vernier scale, a connecting block protruding out of the outer wall of the vernier scale along the horizontal direction is arranged on the vernier scale, and a marking claw is arranged on the connecting block; the vernier scale is in threaded connection with a fastening bolt and is fastened and positioned on the main scale through the fastening bolt; an adapter is arranged on the connecting block, a first mounting groove with an opening facing the direction away from the main ruler is formed in the adapter, and the lineation claw is inserted into the first mounting groove and connected to the adapter through a first bolt; the scribing end of the scribing claw protrudes out of the adapter and is located on the side, away from the main ruler, of the adapter, and the groove wall of the first installation groove is attached to the scribing claw. The scribing claw is rotationally connected to the connecting block through the adapter, the scribing claw is supported and limited through the first mounting groove, vibration of the scribing claw is reduced, meanwhile, force transmitted to the first bolt from the scribing claw is reduced, and the mounting reliability of the first bolt and the scribing claw is improved.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically relating to a scribing tool based on a height vernier caliper. Background Technology

[0002] A height caliper, also known simply as a height gauge, is commonly used for measuring the height of workpieces and for scribing. For example... Figure 1 As shown, a height gauge generally includes a base 11, a main scale 12 vertically mounted on the base 11, and a vernier scale 13 mounted on the main scale 12. The vernier scale 13 and the main scale 12 slide together along the length of the main scale 12. A fastening bolt 14 is threaded onto the vernier scale 13, which is used to secure the vernier scale 13 to the main scale 12. The gauge also includes a connecting block 16 mounted on the vernier scale 13. The connecting block 16 protrudes horizontally from the connecting block 16. A scribing claw 17 parallel to the horizontal plane is connected below the connecting block 16. The connecting block 16 has a through hole extending vertically, and a locking bolt 18 is installed in the through hole. The locking bolt 18 locks the scribing claw 17 onto the connecting block 16.

[0003] Using the aforementioned height gauge, the required dimension lines can be accurately drawn on both rotating and flat surfaces. During the scribing process, the scribing end 171 of the scribing claw 17 contacts and slides against the workpiece surface. The scribing claw 17 experiences frictional resistance and generates slight vibrations, which are more pronounced when scribing on rotating parts that are in operation. In this process, the scribing claw 17 also transmits the resistance it experiences and the vibrations it generates to the locking bolt 18. Over time, this can easily lead to the locking bolt 18 and the scribing claw 17 becoming loose, which not only affects the scribing accuracy of the scribing claw 17, but also causes the scribing claw 17 to swing horizontally and vertically during scribing operations, easily scratching the workpiece surface. In addition, replacing the scribing claw 17 on the existing height gauge requires completely unscrewing the locking bolt 18 from the scribing claw 17, making the replacement process cumbersome and inefficient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a scribing tool based on a height vernier caliper to improve the installation reliability of the scribing claw.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a scribing tool based on a height vernier scale, including a base, a main scale, and a vernier scale slidably connected to the main scale in the vertical direction. The vernier scale is provided with a connecting block protruding from its outer wall in the horizontal direction, and the connecting block is provided with scribing claws. The vernier scale is also threadedly connected with a fastening bolt and is fixedly positioned on the main scale by the fastening bolt.

[0006] The connecting block is provided with an adapter, and the adapter is provided with a first mounting groove with an opening facing away from the main scale. The scribing claw is inserted into the first mounting groove and connected to the adapter by a first bolt. The scribing end of the scribing claw protrudes from the adapter and is located on the side of the adapter away from the main scale. The groove wall of the first mounting groove is in contact with the scribing claw.

[0007] Furthermore, the adapter and the connecting block are connected by a second bolt; the adapter is provided with a second mounting groove with an opening facing the main scale, the connecting block is inserted into the second mounting groove, and the sidewalls of the second mounting groove are all in contact with the sidewalls of the connecting block.

[0008] Furthermore, the second mounting groove is located above the first mounting groove and a partition is provided between them. The top surface of the partition is the side wall of the second mounting groove, and the bottom surface of the partition is the side wall of the first mounting groove.

[0009] Furthermore, the first mounting groove has a lower opening on its lower side, and the second mounting groove has an upper opening on its upper side.

[0010] Furthermore, the adapter includes a limiting plate perpendicular to the horizontal plane, and two limiting plates are provided, which are arranged at intervals along a horizontal direction perpendicular to the scribing claw; a connecting plate is provided between the two limiting plates, which is located between the top surface and the bottom surface of the limiting plate, and the two limiting plates are connected by the connecting plate.

[0011] The bottom surface of the connecting plate and the two limiting plates form the first mounting groove, and the top surface of the connecting plate and the two limiting plates form the second mounting groove. The partition is the connecting plate.

[0012] Furthermore, the two limiting plates and the connecting plate are integrally formed as a whole structure.

[0013] Furthermore, the second bolt is perpendicular to the horizontal plane, the connecting block is secured to the partition by the second bolt, the second bolt is threaded to the partition, and the top surface of the partition abuts against the bottom surface of the connecting block.

[0014] Furthermore, the first bolt is threaded onto the adapter and penetrates vertically through the side wall of the first mounting groove. The end of the first bolt away from the bolt head is located in the first mounting groove, abutting against the scribing claw and positioning the scribing claw within the first mounting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: it provides a marking tool based on a height vernier caliper, which transfers the marking claw to the connecting block through an adapter, and uses a first mounting groove on the adapter to accommodate the marking claw and limit its movement in the horizontal direction. When using this utility model for marking operations, the sidewall of the first mounting groove supports and limits the marking claw in the horizontal direction, reducing the vibration of the marking claw and the force transmitted from the marking claw to the first bolt, thereby reducing the stress and vibration on the first bolt, reducing the frequency of loosening of the first bolt, and improving the installation reliability of the first bolt and the marking claw. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an existing height vernier caliper in the background art;

[0017] Figure 2 This is a schematic diagram of the main structure of one embodiment of the present invention;

[0018] Figure 3 It is along Figure 2 A schematic diagram of the cross-sectional structure along the AA direction of the mid-section line of sight;

[0019] Figure 4 yes Figure 2 A schematic diagram of one embodiment of the transfer connector;

[0020] Reference numerals: 11-Base; 12-Main scale; 13-Vernier scale; 14-Fasting bolt; 16-Connecting block; 17-Scrubbing claw; 171-Scrubbing end; 18-Locking bolt; 2-Adapter; 21-First mounting slot; 22-Second mounting slot; 23-Partition; 24-Limiting plate; 31-First bolt; 32-Second bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] As attached Figure 2-4As shown, a marking tool based on a height vernier caliper includes a base 11, a main scale 12, and a vernier caliper 13 slidably connected to the main scale 12 in the vertical direction. The vernier caliper 13 is provided with a connecting block 16 protruding from its outer wall in the horizontal direction, and the connecting block 16 is provided with a marking claw 17. The vernier caliper 13 is also threadedly connected with a fastening bolt 14 and is fixedly positioned on the main scale 12 by the fastening bolt 14. The connecting block 16 is provided with an adapter 2, and the adapter 2 is provided with a first mounting groove 21 with an opening facing away from the main scale 12. The marking claw 17 is inserted into the first mounting groove 21 and connected to the adapter 2 by a first bolt 31. The marking end 171 of the marking claw 17 protrudes from the adapter 2 and is located on the side of the adapter 2 away from the main scale 12. The groove wall of the first mounting groove 21 is in contact with the marking claw 17.

[0023] This invention uses an adapter 2 to connect the marking claw 17 to the connecting block 16. A first mounting groove 21 on the adapter 2 accommodates the marking claw 17 and limits its horizontal position. When using this invention for marking operations, the sidewall of the first mounting groove 21 horizontally supports and limits the marking claw 17, reducing vibration and the force transmitted from the marking claw 17 to the first bolt 31. This reduces the stress and vibration on the first bolt 31, lowers the frequency of loosening, and improves the installation reliability of the first bolt 31 and the marking claw 17.

[0024] The adapter 2 can be connected to the connecting block 16 by welding, bolting, riveting, or other methods. Preferably, the adapter 2 and the connecting block 16 are connected by a second bolt 32. The adapter 2 has a second mounting groove 22 with an opening facing the main ruler 12. The connecting block 16 is inserted into the second mounting groove 22, and the sidewalls of the second mounting groove 22 are all in contact with the sidewalls of the connecting block 16. The adapter 2 and the connecting block 16 are designed as a detachable connection structure, facilitating the replacement of the adapter 2. Furthermore, during marking operations, the sidewalls of the second mounting groove 22 support the adapter 2, reducing the direct stress on the second bolt 32, preventing the second bolt 32 and the adapter 2 from loosening, and improving the installation reliability of the adapter 2.

[0025] The second mounting slot 22 may be located above the first mounting slot 21, or it may be flush with the height of the first mounting slot 21. Specifically, the second mounting slot 22 is located above the first mounting slot 21 and a partition 23 is provided between them. The top surface of the partition 23 is the side wall of the second mounting slot 22, and the bottom surface of the partition 23 is the side wall of the first mounting slot 21.

[0026] To ensure the stable connection between the scribing claw 17, the connecting block 16, and the adapter 2, the length of the scribing claw 17 within the first mounting groove 21 and the length of the connecting block 16 within the second mounting groove 22 must be sufficiently long. Generally, the length of the scribing claw 17 within the first mounting groove 21 should be at least two-thirds of its total length, and the length of the connecting block 16 within the second mounting groove 22 should be at least two-thirds of its total length. This requires sufficient depth in both the first and second mounting grooves 21 and 22, but such deep mounting grooves are difficult to machine. Preferably, the first mounting groove 21 has a lower opening, and the second mounting groove 22 has an upper opening. The width of the first and second mounting grooves 21 and 22 in the vertical direction is considered as the depth for machining, which facilitates the manufacturing of the first and second mounting grooves 21 and 22.

[0027] The adapter 2 can be a cylindrical body, clamp, or frame structure. Specifically, the adapter 2 includes two limiting plates 24 perpendicular to the horizontal plane, arranged at intervals along a horizontal direction perpendicular to the marking claw 17. A connecting plate is provided between the two limiting plates 24, located between the top and bottom surfaces of the limiting plates 24, connecting the two limiting plates 24. The bottom surface of the connecting plate and the two limiting plates 24 form a first mounting groove 21, and the top surface of the connecting plate and the two limiting plates 24 form a second mounting groove 22. The partition plate 23 serves as the connecting plate. The structure is simple and convenient for the processing and manufacturing of the adapter 2. The limiting plates 24 and the connecting plate can be welded or bolted together. As a further preferred option, the two limiting plates 24 and the connecting plate are integrally formed, and the grooves can be directly milled on the raw material. This not only makes the structure simple and easy to manufacture, but also increases the reliability of the connection between the limiting plates 24 and the connecting plate.

[0028] In the above structure, the first bolt 31 and the second bolt 32 can be set perpendicular to the horizontal plane or parallel to the horizontal plane. The first bolt 31 can pass through the side wall of the first mounting groove 21 and be threadedly connected to the scribing claw 17 to engage the scribing claw 17 on the adapter 2. However, this structure is inconvenient for frequent installation and removal of the scribing claw 17. Preferably, the first bolt 31 is threadedly connected to the adapter 2 and passes perpendicularly through the side wall of the first mounting groove 21. The end of the first bolt 31 away from the bolt head is located in the first mounting groove 21, pressing against the scribing claw 17 and positioning the scribing claw 17 in the first mounting groove 21. The second bolt 32 cooperates with the side wall of the first mounting groove 21 on the opposite side to clamp and position the scribing claw 17. The scribing claw 17 can be disassembled by externally rotating the second bolt 32, which facilitates the adjustment and installation / removal of the scribing claw 17.

[0029] The second bolt 32 can be mounted on the adapter 2 and threadedly connected to the connecting block 16, or it can be threaded onto the adapter 2 and pressed against the connecting block 16. Specifically, the second bolt 32 is perpendicular to the horizontal plane, and the connecting block 16 is secured to the partition 23 by the second bolt 32. The second bolt 32 is threadedly connected to the partition 23, and the top surface of the partition 23 abuts against the bottom surface of the connecting block 16.

[0030] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

[0031] In the description of this utility model, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

Claims

1. A marking tool based on a height vernier caliper, comprising a base (11), a main scale (12), and a vernier caliper (13) slidably connected to the main scale (12) in a vertical direction, wherein the vernier caliper (13) is provided with a connecting block (16) protruding horizontally from its outer wall, and the connecting block (16) is provided with marking claws (17); the vernier caliper (13) is also threadedly connected with a fastening bolt (14) and is fastened to the main scale (12) by the fastening bolt (14); characterized in that: The connecting block (16) is provided with an adapter (2), the adapter (2) is provided with a first mounting groove (21) with an opening facing away from the main scale (12), the scribing claw (17) is inserted into the first mounting groove (21) and connected to the adapter (2) by a first bolt (31); the scribing end (171) on the scribing claw (17) protrudes from the adapter (2) and is located on the side of the adapter (2) away from the main scale (12), and the groove wall of the first mounting groove (21) is in contact with the scribing claw (17).

2. The marking tool based on a height vernier caliper according to claim 1, characterized in that: The adapter (2) is connected to the connecting block (16) by a second bolt (32); the adapter (2) is provided with a second mounting groove (22) with an opening facing the main scale (12), the connecting block (16) is inserted into the second mounting groove (22), and the sidewalls of the second mounting groove (22) are all in contact with the sidewalls of the connecting block (16).

3. The marking tool based on a height vernier caliper according to claim 2, characterized in that: The second mounting groove (22) is located above the first mounting groove (21) and a partition (23) is provided between them. The top surface of the partition (23) is the side wall of the second mounting groove (22), and the bottom surface of the partition (23) is the side wall of the first mounting groove (21).

4. The marking tool based on a height vernier caliper according to claim 3, characterized in that: The first mounting groove (21) has a lower opening on its lower side, and the second mounting groove (22) has an upper opening on its upper side.

5. The marking tool based on a height vernier caliper according to claim 4, characterized in that: The adapter (2) includes a limiting plate (24) perpendicular to the horizontal plane. There are two limiting plates (24), which are arranged at intervals along the horizontal direction perpendicular to the scribing claw (17). A connecting plate is provided between the two limiting plates (24), which is located between the top surface and the bottom surface of the limiting plate (24). The two limiting plates (24) are connected by the connecting plate. The bottom surface of the connecting plate and the two limiting plates (24) form the first mounting groove (21), the top surface of the connecting plate and the two limiting plates (24) form the second mounting groove (22), and the partition plate (23) is the connecting plate.

6. The marking tool based on a height vernier caliper according to claim 5, characterized in that: The two limiting plates (24) and the connecting plate are integrally formed as a whole structure.

7. The marking tool based on a height vernier caliper according to claim 3, characterized in that: The second bolt (32) is perpendicular to the horizontal plane, and the connecting block (16) is fastened to the partition (23) by the second bolt (32). The second bolt (32) is threadedly connected to the partition (23), and the top surface of the partition (23) abuts against the bottom surface of the connecting block (16).

8. The marking tool based on a height vernier caliper according to any one of claims 1-7, characterized in that: The first bolt (31) is threaded onto the adapter (2) and passes vertically through the side wall of the first mounting groove (21). The end of the first bolt (31) away from the bolt head is located in the first mounting groove (21) and abuts against the scribing claw (17) and positions the scribing claw (17) in the first mounting groove (21).

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