A threaded hole depth detection jig

Abstract

The utility model discloses a threaded hole depth detection tool relates to sheet metal part threaded hole test technical field, and the utility model discloses a detection platform is personally experienced sth, the upper surface fixed establishment of detection platform is equipped with the support rod, the upper end fixed establishment of support rod is equipped with the top plate, the top plate is opened with the sliding slot, the sliding slot is equipped with the sliding plate of sliding, the upper surface fixed establishment of sliding plate is equipped with the electric telescopic handle, the utility model discloses through starting first motor and makes it drive the rotation of double -end screw rod through connecting block, and the sleeve block of double -end screw rod outside surface sleeve sets along the fixed groove sliding, thereby can make the protective pad and sheet metal part contact, and limit its, avoid the movement of sheet metal part in the process of testing again, through the screwing of standard screw rod and threaded hole, utilize the depth of calculation of screw rod's thread parameter (pitch, tooth form angle) and screwing number, formula: threaded hole depth D=nXP (n is screwing number, and P is the pitch).

Description

Technical Field

[0001] This utility model relates to the field of sheet metal thread hole testing technology, specifically a thread hole depth testing fixture. Background Technology

[0002] Sheet metal stamping parts are characterized by their light weight, high strength, electrical conductivity, low cost, and good mass production performance. Some automotive sheet metal parts have many threaded holes on their surface, requiring the inspection of the depth of the threaded holes.

[0003] During the inspection of screw holes on sheet metal parts, even a slight misalignment of the sheet metal can easily lead to misalignment between the test bolt and the screw hole, resulting in the failure of the test structure. Furthermore, it is inconvenient to disassemble the test screw, making it difficult to adjust the equipment according to the size of the threaded hole. Utility Model Content

[0004] To address the issue that even slight misalignment of the sheet metal during the inspection of threaded holes on sheet metal parts can lead to misalignment between the test bolt and the threaded hole, resulting in test failure and making it inconvenient to disassemble the test screw and adjust the equipment according to the threaded hole size, this utility model aims to provide a threaded hole depth inspection fixture.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a threaded hole depth detection fixture, including a detection table, a support rod fixedly provided on the upper surface of the detection table, a top plate fixedly provided at the upper end of the support rod, a sliding groove provided on the top plate, a sliding plate slidably provided in the sliding groove, an electric telescopic rod fixedly provided on the upper surface of the sliding plate, the output end of the electric telescopic rod movably passing through the sliding plate, a support shell fixedly provided at the end of the output end of the electric telescopic rod, a first motor fixedly provided inside the support shell, a connecting block provided at the output end of the first motor, the connecting block passing through the sliding plate, a test screw installed at the lower end of the connecting block, an electric slide rail fixedly provided on the upper surface of the top plate, an electric slider slidably provided in the electric slide rail, a first connecting plate provided on the electric slider, the other end of the first connecting plate being fixedly connected to the upper surface of the sliding plate, and a clamping assembly provided on the detection table; The clamping assembly includes a fixing groove formed on the upper surface of the testing table. A double-ended lead screw is rotatably mounted in the fixing groove. A sleeve block is threaded onto the outer surface of the double-ended lead screw. The sleeve block slides and fits against the inner surface of the fixing groove. A clamping plate is fixedly mounted on the upper surface of the sleeve block. A support plate is fixedly mounted on one side of the testing table. A drive motor is fixedly mounted on the upper surface of the support plate. A connecting rod is provided at the output end of the drive motor. The other end of the connecting rod is fixedly connected to one end of the double-ended lead screw. A fixing shell is fixedly mounted on the upper surface of the support plate. The drive motor is disposed inside the fixing shell.

[0006] Preferably, the test screw is movably inserted inside the connecting block, the outer surface of the connecting block is threaded with a mounting screw, the outer surface of the test screw has a limiting hole, and the end of the mounting screw is movably inserted into the limiting hole.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model starts the first motor, which drives the double-ended lead screw to rotate through the connecting block. The sleeve block on the outer surface of the double-ended lead screw slides along the fixed groove, so that the protective pad can contact the sheet metal part and limit its movement, preventing the sheet metal part from moving during the test. The standard screw is screwed into the threaded hole, and the depth is calculated using the screw thread parameters (pitch, thread angle) and the number of turns. The formula is: Threaded hole depth D=n×P (n is the number of turns, P is the pitch).

[0008] 2. This utility model allows the end of the mounting screw to be disengaged from the limiting hole by rotating the mounting screw. Then, the old test screw can be disassembled, and the upper end of the new test screw can be inserted into the inside of the connecting block. Finally, the mounting screw can be rotated to insert its end into the limiting hole. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the mounting screw structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the clamping component structure of this utility model.

[0013] In the diagram: 1. Testing platform; 11. Support rod; 12. Top plate; 13. Slide groove; 14. Slide plate; 15. Electric slide rail; 16. Electric slider; 17. First connecting plate; 2. Electric telescopic rod; 21. Support shell; 211. First motor; 22. Connecting block; 23. Test screw; 24. Limiting hole; 25. Mounting screw; 26. Laser positioner; 3. Clamping assembly; 31. Fixing groove; 32. Double-ended lead screw; 33. Sleeve block; 34. Clamping plate; 35. Protective pad; 36. Support plate; 37. Drive motor; 38. Connecting rod; 39. Fixing shell. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figure 1-3 As shown, this utility model provides a thread hole depth detection fixture, including a detection table 1. A support rod 11 is fixedly mounted on the upper surface of the detection table 1. A top plate 12 is fixedly mounted on the upper end of the support rod 11. A sliding groove 13 is formed on the top plate 12. A sliding plate 14 is slidably mounted in the sliding groove 13. An electric telescopic rod 2 is fixedly mounted on the upper surface of the sliding plate 14. The output end of the electric telescopic rod 2 movably passes through the sliding plate 14. A support shell 21 is fixedly mounted at the end of the output end of the electric telescopic rod 2. A first motor 211 is fixedly mounted inside the support shell 21. The output end of the first motor 211 is provided with a connecting block 22, which passes through the slide plate 14. The lower end of the connecting block 22 is equipped with a test screw 23. The testing table 1 is provided with a clamping assembly 3. The sheet metal part can be placed on the testing table 1 and adjusted so that the threaded hole on the sheet metal part is at the same horizontal line as the test screw 23. The electric slider 16 can be moved along the electric slide rail 15 by activating the electric slide rail 15. The electric slider 16 drives the slide plate 14 to move through the first connecting plate 17, thereby adjusting the test screw 23 to correspond with the threaded hole. The clamping assembly 3 includes a fixing groove 31, which is formed on the upper surface of the testing table 1. A double-ended lead screw 32 is rotatably mounted in the fixing groove 31. A sleeve block 33 is threaded onto the outer surface of the double-ended lead screw 32. The sleeve block 33 slides against the inner surface of the fixing groove 31. A clamping plate 34 is fixedly mounted on the upper surface of the sleeve block 33. A support plate 36 is fixedly mounted on one side of the testing table 1. A drive motor 37 is fixedly mounted on the upper surface of the support plate 36. A connecting rod 38 is provided at the output end of the drive motor 37. The other end of the connecting rod 38 is fixedly connected to one end of the double-ended lead screw 32. The first motor 211 is started to drive the double-ended lead screw 32 to rotate through the connecting block 22. The sleeve block 33 sleeved on the outer surface of the double-ended lead screw 32 slides along the fixing groove 31, so that the protective pad 35 can contact the sheet metal part and limit it to prevent the sheet metal part from moving during the test. The standard screw is screwed into the threaded hole, and the depth is calculated using the screw thread parameters (pitch, thread angle) and the number of turns. The formula is: Threaded hole depth D = n × P (n is the number of turns, P is the pitch). A fixed shell 39 is fixedly provided on the upper surface of the support plate 36. The drive motor 37 is located inside the fixed shell 39 to protect the drive motor 37. An electric slide rail 15 is fixedly provided on the upper surface of the top plate 12. An electric slider 16 is slidably provided in the electric slide rail 15. A first connecting plate 17 is provided on the electric slider 16. The other end of the first connecting plate 17 is fixedly connected to the upper surface of the slide plate 14 to assist the movement of the slide plate 14. A protective pad 35 is fixedly provided on one side of the opposite side of the clamping plate 34 to provide a certain degree of protection for the sheet metal parts. A laser locator 26 is fixedly provided on the lower surface of the connecting block 22. An infrared laser lamp is provided in the laser locator 26. The infrared laser lamp can make the test screw 23 aligned with the threaded hole. The test screw 23 is movably inserted into the inside of the connecting block 22. The outer surface of the connecting block 22 is threaded with a mounting screw 25. A limiting hole 24 is formed on the outer surface of the test screw 23. The end of the mounting screw 25 is movably inserted into the limiting hole 24. By rotating the mounting screw 25, its end is disengaged from the limiting hole 24. Then, the old test screw 23 can be disassembled, and the upper end of the new test screw 23 can be inserted into the inside of the connecting block 22. Finally, the mounting screw 25 can be rotated to insert its end into the limiting hole 24.

[0016] Working principle: In use, the sheet metal part is placed on the testing table 1, and the threaded hole on the sheet metal part is adjusted so that it is at the same horizontal line as the test screw 23. The electric slide rail 15 is activated, and the electric slider 16 moves along the electric slide rail 15. The electric slider 16 drives the slide plate 14 to move through the first connecting plate 17, thereby adjusting the test screw 23 to correspond with the threaded hole. The first motor 211 is activated, which drives the double-ended screw 32 to rotate through the connecting block 22. The sleeve 33 on the outer surface of the double-ended screw 32 slides along the fixing groove 31, so that the protective pad 35 can contact the sheet metal part and limit it to prevent the sheet metal part from moving during the test. The standard screw is screwed into the threaded hole, and the depth is calculated by using the screw thread parameters (pitch, thread angle) and the number of turns. The formula is: Threaded hole depth D = n × P (n is the number of turns, P is the pitch). By rotating the mounting screw 25 to disengage its end from the limiting hole 24, the old test screw 23 can be removed, and the upper end of the new test screw 23 can be inserted into the connecting block 22. Then, rotate the mounting screw 25 to insert its end into the limiting hole 24.

[0017] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A thread hole depth detection fixture, comprising a detection table (1), characterized in that, The upper surface of the testing platform (1) is fixedly provided with a support rod (11), the upper end of the support rod (11) is fixedly provided with a top plate (12), the top plate (12) is provided with a sliding groove (13), the sliding groove (13) is provided with a sliding plate (14), the upper surface of the sliding plate (14) is fixedly provided with an electric telescopic rod (2), the output end of the electric telescopic rod (2) moves through the sliding plate (14), the end of the output end of the electric telescopic rod (2) is fixedly provided with a support shell (21), the inside of the support shell (21) is fixedly provided with a first motor (211), the output end of the first motor (211) is provided with a connecting block (22), the connecting block (22) passes through the sliding plate (14), the lower end of the connecting block (22) is installed with a test screw (23), and the testing platform (1) is provided with a clamping assembly (3). The clamping assembly (3) includes a fixing groove (31) which is opened on the upper surface of the testing table (1). A double-ended lead screw (32) is rotatably provided in the fixing groove (31). A sleeve block (33) is threaded on the outer surface of the double-ended lead screw (32). The sleeve block (33) slides against the inner surface of the fixing groove (31). A clamping plate (34) is fixed on the upper surface of the sleeve block (33). A support plate (36) is fixed on one side of the testing table (1). A drive motor (37) is fixed on the upper surface of the support plate (36). A connecting rod (38) is provided at the output end of the drive motor (37). The other end of the connecting rod (38) is fixedly connected to one end of the double-ended lead screw (32).

2. The thread hole depth detection fixture as described in claim 1, characterized in that, The test screw (23) is movably inserted inside the connecting block (22). The outer surface of the connecting block (22) is threaded with a mounting screw (25). The outer surface of the test screw (23) has a limiting hole (24). The end of the mounting screw (25) is movably inserted into the limiting hole (24).

3. The thread hole depth detection fixture as described in claim 1, characterized in that, The upper surface of the support plate (36) is fixedly provided with a fixed shell (39), and the drive motor (37) is located inside the fixed shell (39).

4. The thread hole depth detection fixture as described in claim 1, characterized in that, An electric slide rail (15) is fixedly provided on the upper surface of the top plate (12), and an electric slider (16) is slidably provided inside the electric slide rail (15). A first connecting plate (17) is provided on the electric slider (16), and the other end of the first connecting plate (17) is fixedly connected to the upper surface of the slide plate (14).

5. A threaded hole depth detection fixture as described in claim 1, characterized in that, A protective pad (35) is fixedly provided on one side of the opposite side of the clamp (34).

6. The thread hole depth detection fixture as described in claim 1, characterized in that, A laser locator (26) is fixedly provided on the lower surface of the connecting block (22).

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