A bolt threading device with anti-skew tooth and anti-pulling back bolt threading pad

Abstract

The application discloses a bolt penetrating gasket thread rolling device capable of preventing skewing and back pulling, and relates to the technical field of bolt thread rolling.The bolt penetrating gasket thread rolling device comprises a bottom plate, a fixed table is fixedly installed at the top end of the bottom plate, a driving box is fixedly installed at the top end of the bottom plate on one side of the fixed table, two first grooves are formed in the side end portions of the fixed table, and a sliding plate is slidingly installed in each first groove.The bolt penetrating gasket thread rolling device has the advantages that the top end of a connecting plate is rotated at the side end portions of guide strips, a pulling force is applied to the guide strips, the top cover is slid on the top end of the fixed table, the inner wall of the fixed table is separated from the top end of the bolt penetrating gasket, and after the bolt penetrating gasket is rolled by a thread rolling rod, the side end portions of the bolt penetrating gasket are limited by an arc-shaped plate and the top cover, the bolt penetrating gasket is limited on the top end of the fixed table, the bolt penetrating gasket cannot be pulled to one side along with the thread rolling rod, and the convenience of use is ensured.

Description

Technical Field

[0001] This invention relates to the field of bolt thread rolling technology, and in particular to a bolt thread rolling device that prevents misaligned threads and pull-back. Background Technology

[0002] Thread rolling machines are specialized machining equipment used to produce external threads on cylindrical blanks such as bolts, screws, threaded rods, and lead screws. They are generally used for thread rolling of bolts. By fixing the bolt and washer to the operating table, a hydraulic device pushes the thread rolling rod to roll the thread on the bolt and washer. Due to the rotation of the thread rolling rod itself, if the bolt and washer are not securely fixed during thread rolling, the bolt and washer may shift, resulting in a misalignment of the thread rolling position. At the same time, during the return motion of the thread rolling rod after the thread rolling process, the bolt and washer may be moved, causing the bolt and washer to be pulled back by the thread rolling rod, affecting the production progress. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a bolt washer thread rolling device that prevents misaligned threads and pull-back. This solves the technical problem that, due to the rotation of the thread rolling rod itself, if the bolt washer is not securely fixed during bolt washer processing, it can easily shift, leading to misalignment of the thread rolling position. Furthermore, after the thread rolling process is completed, the retraction of the thread rolling rod can easily cause the bolt washer to move, resulting in the bolt washer being pulled back by the thread rolling rod, thus affecting production progress.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A bolt thread rolling device for preventing misaligned threads and pullback, comprising a base plate, a fixed platform fixedly mounted on the top of the base plate, a drive box fixedly mounted on the top of the base plate on one side of the fixed platform, two first grooves formed on the side end of the fixed platform, a slide plate slidably mounted inside each first groove, a fixed frame fixedly mounted on the side end of each slide plate, a common fixed plate fixedly mounted on the inner side of both slide plates, a guide slider fixedly mounted on the side end of the fixed plate, and two telescopic rods fixedly mounted inside the guide slider;

[0008] Each telescopic rod has its end connected to a fixed platform, and the connection of the telescopic rods allows the slide plate to slide only within the first groove.

[0009] Preferably, a thread rolling rod is fixedly installed on the side end of the drive box, a fixing ring is fixedly installed on the surface of the thread rolling rod, and a T-shaped plate is fixedly installed on the bottom end of the fixing ring;

[0010] The end of the T-shaped plate is aligned with the side ends of the two slide plates. When the drive box moves, the T-shaped plate presses against the side ends of the slide plates. Two U-shaped plates are fixedly installed on the side end of the fixed platform, and a connecting plate is rotatably installed inside each U-shaped plate.

[0011] Each connecting plate is connected to a fixed frame at its bottom end, and a thrust is applied to the connecting plate through the fixed frame. A top cover is slidably installed on the top of the fixed platform, and guide strips are fixedly installed on both sides of the top cover.

[0012] Each guide bar has its side end connected to the top of the connecting plate, which transmits the thrust of the fixing frame to the top cover in the opposite direction.

[0013] Preferably, the top of the fixed platform is provided with a second groove, and an arc-shaped plate is slidably installed inside the second groove;

[0014] Among them, the top of the arc-shaped plate slides out of the fixed platform to clamp and fix the bolt through washer; both sides of the arc-shaped plate are fixedly installed with extrusion blocks.

[0015] The slide plate slides inside the first groove, applying an upward thrust to the extrusion block; a limit plate is fixedly installed inside the second groove.

[0016] The arc-shaped plate moves upward at the top of the limiting plate. Two spring blocks are fixedly installed at the bottom of the arc-shaped plate, and a fixing rod is fixedly installed at the end of each spring block.

[0017] Each fixed rod has its top end connected to a limiting plate, which connects the arc-shaped plate to the limiting plate in series.

[0018] (III) Beneficial Effects

[0019] 1. By sliding the slide plate, the fixing frame applies a horizontal thrust to the bottom of the connecting plate. The end of the connecting plate rotates inside the fixing frame. The connecting plate is pushed by the slide plate, causing it to rotate around the U-shaped plate. The top of the connecting plate pushes the guide bar in the opposite direction, causing the guide bar to slide on the top of the fixing platform. At the same time, the guide bar drives the top cover to slide to one side, so that the inner wall of the top cover is in close contact with the top of the bolt washer, limiting the bolt washer and increasing its own stability, preventing the thread rolling rod from causing the thread to bend at an angle when rolling the thread on the bolt washer.

[0020] 2. By rotating the top of the connecting plate on the side end of the guide strip, a pulling force is applied to the guide strip, allowing the top cover to slide on the top of the fixed platform. The inner wall of the fixed platform moves away from the top of the bolt washer. At the same time, after the thread rolling rod rolls the threads on the bolt washer, the side end of the bolt washer is also restricted by the arc plate and the top cover, which restricts the bolt washer to the top of the fixed platform. The bolt washer will not be pulled back to one side with the thread rolling rod, ensuring ease of use.

[0021] 3. After the thread rolling rod finishes threading the bolt through the washer, the drive box is moved to one side by the motor, allowing the fixing ring to follow the drive box and move away from the side end of the slide plate, relieving the pressure on the slide plate. Then, through the force of the two telescopic rods, the telescopic rods are reset inside the guide slider. The top of the telescopic rods applies a horizontal thrust to the guide slider, allowing the guide slider to push the two slide plates to slide at the side end of the fixed platform. The slide plate moves with the fixed plate inside the first groove. At this time, the slide plate drives the fixed frame to pull the end of the connecting plate in the opposite direction, which can reset the equipment by itself. It is simple and convenient.

[0022] 4. The sliding plate slides inside the first groove, applying an upward thrust to the pressing block, pushing the arc-shaped plate to slide inside the second groove. This allows the arc-shaped plate to slide upwards within the second groove, pressing and clamping the bolt washer placed at the top of the fixed platform. During the movement of the drive box, the T-shaped plate at the bottom presses against the sliding plate, allowing the arc-shaped plate to automatically clamp the bolt washer without manual fixing.

[0023] 5. By sliding the slide plate, the fixing frame applies a horizontal thrust to the bottom of the connecting plate. The end of the connecting plate rotates inside the fixing frame. The connecting plate is pushed by the slide plate, causing it to rotate around the U-shaped plate. The top of the connecting plate pushes the guide strip in the opposite direction, causing the guide strip to slide on the top of the fixing platform. At the same time, the guide strip drives the top cover to slide to one side, so that the inner wall of the top cover is in close contact with the top of the bolt washer. The slide plate simultaneously fixes the bolt washer to the curved plate and the top cover, making the fixing more convenient. Attached Figure Description

[0024] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] Figure 1 This is a structural diagram of the drive box of the present invention;

[0026] Figure 2 This is a structural diagram of the T-shaped plate of the present invention;

[0027] Figure 3 This is a structural diagram of the fixing platform of the present invention;

[0028] Figure 4 This is a structural diagram of the arc-shaped plate of the present invention;

[0029] Figure 5 This is a structural diagram of the top cover of the present invention.

[0030] Legend: 1. Base plate; 11. Drive box; 12. Fixing platform; 13. Fixing ring; 14. Thread rolling rod; 15. Top cover; 16. U-shaped plate; 17. Fixing frame; 18. Connecting plate; 19. T-shaped plate; 21. Arc plate; 22. First groove; 23. Slide plate; 24. Fixing plate; 25. Guide slider; 26. Telescopic rod; 27. Second groove; 28. Extrusion block; 29. ​​Fixing rod; 31. Spring block; 32. Limiting plate; 33. Guide strip. Detailed Implementation

[0031] This application provides a bolt thread rolling device that prevents misaligned threads and pullback. It effectively solves the problem that during bolt thread rolling, if the bolt is not securely fixed, it can easily shift, leading to misalignment of the thread rolling position. Furthermore, after the thread rolling process, the retraction of the thread rolling rod can cause the bolt to move, resulting in pullback and affecting production progress. By sliding the sliding plate, the fixing frame applies a horizontal thrust to the bottom of the connecting plate. The end of the connecting plate rotates inside the fixing frame, and the thrust from the sliding plate causes it to rotate around the U-shaped plate. The top of the connecting plate pushes the guide strip in the opposite direction, causing it to slide on the top of the fixing platform. Simultaneously, the guide strip causes the top cover to slide to one side, ensuring the inner wall of the top cover is tightly against the top of the bolt, limiting the bolt's position and increasing its stability, thus preventing misaligned threads during the thread rolling process.

[0032] Example

[0033] The technical solution in this application effectively solves the technical problems that, due to the rotation of the thread rolling rod itself, if the bolt washer is not securely fixed during the thread rolling process, it is easy for the bolt washer to shift, resulting in a discrepancy in the thread rolling position. Furthermore, after the thread rolling process is completed, the retraction of the thread rolling rod can easily cause the bolt washer to move, resulting in the bolt washer being pulled back by the thread rolling rod, thus affecting the production progress. The overall approach is as follows:

[0034] To address the problems existing in the prior art, this invention provides a bolt thread rolling device for preventing misaligned threads and pullback. This device includes a base plate 1, with a fixed platform 12 fixedly mounted on the top of the base plate 1. A drive box 11 is fixedly mounted on the top of the base plate 1 on one side of the fixed platform 12. Two first grooves 22 are formed on the side end of the fixed platform 12. A sliding plate 23 is slidably mounted inside each first groove 22. A fixed frame 17 is fixedly mounted on the side end of each sliding plate 23. A single fixed plate 24 is fixedly mounted on the inner side of both sliding plates 23. A guide slider 25 is fixedly mounted on the side end of the fixed plate 24. Two telescopic rods 26 are fixedly mounted inside the guide slider 25. Through the force of the two telescopic rods 26, the telescopic rods 26 move along the guide slider 25. The internal mechanism of plate 5 is reset. The top of the telescopic rod 26 applies a horizontal thrust to the guide slider 25, causing the guide slider 25 to push the two slide plates 23 to slide at the side end of the fixed platform 12. The slide plates 23 move with the fixed plate 24 inside the first groove 22. At this time, the slide plates 23 drive the fixed frame 17 to pull the end of the connecting plate 18 in the opposite direction, causing the connecting plate 18 to rotate inside the U-shaped plate 16, adjusting the connecting plate 18 to a vertical state. Then, the top of the connecting plate 18 rotates at the side end of the guide strip 33, applying a pulling force to the guide strip 33, causing the top cover 15 to slide at the top of the fixed platform 12. The inner wall of the fixed platform 12 moves away from the top of the bolt washer. At the same time, after the thread rolling rod 14 threads the bolt washer, the side end of the bolt washer is still restricted by the arc plate 21 and the top cover 15.

[0035] The end of each telescopic rod 26 is connected to the fixed platform 12. Through the connection of the telescopic rods 26, the slide plate 23 is limited to sliding inside the first groove 22. A thread rolling rod 14 is fixedly installed on the side end of the drive box 11. A fixing ring 13 is fixedly installed on the surface of the thread rolling rod 14. A T-shaped plate 19 is fixedly installed at the bottom end of the fixing ring 13.

[0036] The end of the T-shaped plate 19 is aligned with the side ends of the two slide plates 23. When the drive box 11 moves, the T-shaped plate 19 presses against the side ends of the slide plates 23. Two U-shaped plates 16 are fixedly installed on the side ends of the fixing table 12. A connecting plate 18 is rotatably installed inside each U-shaped plate 16.

[0037] The bottom end of each connecting plate 18 is connected to the fixing frame 17. A pushing force is applied to the connecting plate 18 through the fixing frame 17. The top of the fixing platform 12 is slidably mounted with a top cover 15. Guide strips 33 are fixedly mounted on both sides of the top cover 15.

[0038] The side end of each guide bar 33 is connected to the top end of the connecting plate 18. The thrust of the fixing frame 17 is transmitted in reverse through the connecting plate 18 to the top end of the fixing platform 12 of the top cover 15. A second groove 27 is provided on the top end of the fixing platform 12 of the top cover 15. An arc plate 21 is slidably installed inside the second groove 27.

[0039] The arc plate 21 slides out of the top of the fixed platform 12 to clamp and fix the bolt through washer. Both sides of the arc plate 21 are fixedly installed with extrusion blocks 28.

[0040] The slide plate 23 slides inside the first groove 22, applying an upward thrust to the extrusion block 28. The limit plate 32 is fixedly installed inside the second groove 27.

[0041] The curved plate 21 moves upward at the top of the limiting plate 32. Two spring blocks 31 are fixedly installed at the bottom of the curved plate 21, and a fixing rod 29 is fixedly installed at the end of each spring block 31. By pressing the spring blocks 31, the fixing rod 29 extends and retracts at the bottom of the limiting plate 32. At the same time, after the fixing rod 29 is pulled back, it pushes the spring blocks 31 in the opposite direction, so that the spring blocks 31 have a downward force, keeping the bottom of the pressing block 28 in close contact with the surface of the sliding plate 23. By sliding the sliding plate 23, the fixing frame 17 is... A horizontal thrust is applied to the bottom end of the connecting plate 18, causing the end of the connecting plate 18 to rotate inside the fixing frame 17. The connecting plate 18 is pushed by the sliding plate 23, causing it to rotate around the U-shaped plate 16. The top end of the connecting plate 18 pushes the guide strip 33 in the opposite direction, causing the guide strip 33 to slide on the top of the fixing platform 12. Simultaneously, the guide strip 33 drives the top cover 15 to slide to one side, ensuring the inner wall of the top cover 15 is tightly against the top of the bolt washer, thus limiting the bolt washer's position and increasing its stability.

[0042] The top of each fixed rod 29 is connected to the limiting plate 32, and the arc plate 21 is connected in series with the limiting plate 32.

[0043] Working principle:

[0044] The first step is to place the bolt washer on the top of the fixed platform 12. The drive box 11 slides on the top of the base plate 1, causing the base plate 1 to drive the thread rolling rod 14 to slide towards the top of the fixed platform 12. At this time, the thread rolling rod 14 drives the fixed ring 13 to move together, causing the fixed ring 13 to drive the T-shaped plate 19 to move to one side and press the side ends of the two slide plates 23. When the end of the T-shaped plate 19 is aligned with the side ends of the slide plates 23, the T-shaped plate 19 presses the slide plates 23, causing the slide plates 23 to slide inside the first groove 22. At the same time, the slide plates 23 drive the fixed plate 24 to move to one side of the fixed platform 12, causing the guide slider 25 to slide into the fixed platform 12. The guide slider 25 presses the two telescopic rods 26 inside, forcing the telescopic rods 26 to retract inside the guide slider 25, which facilitates the sliding of the slide plates 23 inside the first groove 22.

[0045] The sliding plate 23 slides inside the first groove 22, applying an upward thrust to the pressing block 28, pushing the arc plate 21 to slide inside the second groove 27. The arc plate 21 slides upward inside the second groove 27, pressing and clamping the bolt washer placed at the top of the fixed platform 12. Simultaneously, the arc plate 21 slides at the top of the limiting plate 32, pulling the two spring blocks 31 to slide inside the limiting plate 32. The bottom ends of the spring blocks 31 slide upward, pressing the end of the fixing rod 29. Since the top end of the fixing rod 29 is fixed to the bottom end of the limiting plate 32, the pressing of the spring blocks 31 causes the fixing rod 29 to extend and retract at the bottom end of the limiting plate 32. Simultaneously, the fixing rod 29 pushes in the opposite direction. The moving spring block 31 exerts a downward force, ensuring that the bottom end of the pressing block 28 remains in close contact with the surface of the slide plate 23. The sliding of the slide plate 23 causes the fixing frame 17 to apply a horizontal thrust to the bottom end of the connecting plate 18. The end of the connecting plate 18 rotates inside the fixing frame 17. The connecting plate 18, pushed by the slide plate 23, rotates around the U-shaped plate 16. The top end of the connecting plate 18 pushes the guide strip 33 in the opposite direction, causing the guide strip 33 to slide on the top of the fixing platform 12. Simultaneously, the guide strip 33 causes the top cover 15 to slide to one side, ensuring that the inner wall of the top cover 15 is in close contact with the top of the bolt washer, thus limiting the bolt washer's position, increasing its stability, and preventing the thread rolling rod 14 from threading the bolt washer at an angle.

[0046] The second step involves simultaneously threading the bolts through the washer on the threading rod 14, then moving the drive box 11 to one side via the motor. This causes the fixing ring 13 to move with the drive box 11, allowing the T-shaped plate 19 to move away from the side end of the slide plate 23, relieving the pressure on the slide plate 23. Then, through the force of the two telescopic rods 26, the telescopic rods 26 are reset inside the guide slider 25. The top of the telescopic rods 26 applies a horizontal pushing force to the guide slider 25, causing the guide slider 25 to push the two slide plates 23 to slide at the side end of the fixed platform 12. The slide plate 23 moves with the fixed plate 24 inside the first groove 22. At this time, the slide plate 23 drives the fixed frame. 17. Pull the end of the connecting plate 18 in the opposite direction to rotate the connecting plate 18 inside the U-shaped plate 16, adjust the connecting plate 18 to a vertical state, and then rotate the top of the connecting plate 18 on the side end of the guide bar 33 to apply a pulling force to the guide bar 33, so that the top cover 15 slides on the top of the fixed platform 12. The inner wall of the fixed platform 12 moves away from the top of the bolt washer. At the same time, after the thread rolling rod 14 rolls the threads on the bolt washer, the side end of the bolt washer is also restricted by the arc plate 21 and the top cover 15, which restricts the bolt washer to the top of the fixed platform 12. The bolt washer will not be pulled back to one side with the thread rolling rod 14, ensuring the convenience of use.

[0047] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A thread rolling device for thread rolling of a bolt passing through a washer, which prevents beveling and back pulling, characterized in that, The bolt thread rolling device includes a base plate (1), a fixed platform (12) is fixedly installed on the top of the base plate (1), a drive box (11) is fixedly installed on the top of the base plate (1) on one side of the fixed platform (12), two first grooves (22) are opened on the side end of the fixed platform (12), a slide plate (23) is slidably installed inside each first groove (22), a fixed frame (17) is fixedly installed on the side end of each slide plate (23), the same fixed plate (24) is fixedly installed on the inner side of the two slide plates (23), a guide slider (25) is fixedly installed on the side end of the fixed plate (24), and two telescopic rods (26) are fixedly installed inside the guide slider (25). The end of each telescopic rod (26) is connected to the fixed platform (12). Through the connection of the telescopic rods (26), the slide plate (23) can only slide inside the first groove (22). A thread rolling rod (14) is fixedly installed on the side end of the drive box (11), a fixing ring (13) is fixedly installed on the surface of the thread rolling rod (14), and a T-shaped plate (19) is fixedly installed at the bottom end of the fixing ring (13). The end of the T-shaped plate (19) is aligned with the side ends of the two slide plates (23). When the drive box (11) moves, the T-shaped plate (19) presses against the side ends of the slide plates (23). Two U-shaped plates (16) are fixedly installed on the side end of the fixed platform (12), and a connecting plate (18) is rotatably installed inside each U-shaped plate (16). The bottom end of each connecting plate (18) is connected to the fixing frame (17), and a thrust is applied to the connecting plate (18) through the fixing frame (17); A top cover (15) is slidably installed on the top of the fixed platform (12), and guide strips (33) are fixedly installed on both sides of the top cover (15). Each guide bar (33) has its side end connected to the top of the connecting plate (18), and the thrust of the fixing frame (17) is transmitted in reverse to the top cover (15) through the connecting plate (18). The top of the fixed platform (12) is provided with a second groove (27). An arc-shaped plate (21) is slidably installed inside the second groove (27); Among them, the arc plate (21) slides out of the top of the fixed platform (12) to clamp and fix the bolt through washer; An extrusion block (28) is fixedly installed on both sides of the arc plate (21). The slide plate (23) slides inside the first groove (22) and applies an upward thrust to the extrusion block (28); A limiting plate (32) is fixedly installed inside the second groove (27); Among them, the arc plate (21) moves upward at the top of the limiting plate (32); Two spring blocks (31) are fixedly installed at the bottom end of the arc plate (21). Each of the spring blocks (31) has a fixing rod (29) fixedly installed at its end; The top of each fixed rod (29) is connected to the limiting plate (32), and the arc plate (21) is connected in series with the limiting plate (32).

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