Bolt machining clamp
By using a motor-driven double-ended screw in conjunction with a sliding rail and adjusting the protrusions and threaded posts in the irregular groove, the problem of unstable clamping and applicability of bolt processing fixtures is solved, achieving stable clamping and adapting to the needs of bolts of different sizes.
Patent Information
- Application Number
- CN202520101675.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing bolt processing fixtures are unstable during clamping, resulting in decreased processing quality and difficulty in adapting to bolts of different sizes.
The design employs a double-headed screw driven by a motor and a sliding rail, achieving stable clamping through the relative movement of the movable plate and clamping blocks. The spacing between the clamping blocks can be adjusted by the protrusions and threaded posts in the irregular groove to accommodate different sizes.
It achieves stability and applicability of clamping, avoids bolt deviation during processing, improves processing quality, and can adapt to the clamping requirements of bolts of different sizes.
Smart Images

Figure CN223863571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a bolt processing fixture. Background Technology
[0002] A bolt is a mechanical part, mainly composed of a head and a threaded shaft. This component needs to be used with a nut to secure connecting parts. During connection, the nut needs to be unscrewed from the bolt, then fixed to the connecting part, and finally installed back onto the bolt.
[0003] During the bolt processing, some finished bolts may have errors compared to standard bolts, requiring manual correction or grinding. However, existing grinding processes usually involve manual clamping, and existing bench vises are prone to instability when clamping and fixing bolts. To address these issues, the inventor proposes a bolt processing fixture. Utility Model Content
[0004] In order to solve the problem of unstable clamping when using current bolt processing fixtures, the purpose of this utility model is to provide a bolt processing fixture.
[0005] To solve the above technical problems, the present invention adopts the following technical solution: a bolt processing fixture, including a base, a cavity fixedly connected to the top surface of the base, a slot provided through the side wall of the cavity, a movable plate slidably connected in the slot, a motor disposed in the cavity, a double-ended screw fixedly connected to the output shaft end of the motor, a threaded sleeve threadedly connected to the side wall of the double-ended screw, one end of the movable plate fixedly connected to the outer side wall of the threaded sleeve, a connecting seat fixedly connected to the other end of the movable plate, an extension plate fixedly connected to the side wall of the connecting seat, a shaped groove provided on the side wall of the extension plate, a protrusion slidably connected in the shaped groove, and a clamping block fixedly connected to the end face of the protrusion.
[0006] Preferably, the motor has a fixed base on its side wall, the side wall of which is fixedly connected to the inner wall of the chamber. A support plate is rotatably connected to the side wall of the double-ended screw, and the support plate is fixedly connected to the inner wall of the chamber. The motor is mounted via the fixed base. A heat dissipation vent is provided through the side wall of the chamber, corresponding to the motor. The support plate supports the rotation of the double-ended screw. When the motor is started, the double-ended screw rotates under the action of the motor output shaft. A slider is fixedly connected to the side of the threaded sleeve facing away from the movable plate. A groove is provided on the side of the block facing away from the threaded sleeve. A convex plate is fixedly connected to the inner wall of the chamber, and a slide rail is fixedly connected to the side wall of the convex plate. The groove and the slide rail correspond to each other and are slidably connected. When the double-ended screw rotates, the two threaded sleeves can move relative to each other through the cooperation between the double-ended screw and the threaded sleeve, and through the cooperation between the groove and the slide rail. This allows the two movable plates to move relative to each other, so as to clamp and fix the bolt through the clamping block, and prevent the bolt from deviating during processing, which would affect the processing quality.
[0007] Preferably, the clamping block is located outside the irregular groove, the cross-section of the clamping block is a right trapezoid, there are two movable plates, and the two movable plates correspond to each other. The top surface of the protrusion is fixedly connected to a threaded post, which is located inside the irregular groove. A nut is provided on one side of the extension plate, and the nut corresponds to and cooperates with the threaded post. When it is necessary to clamp and fix bolts of different sizes, the nut is loosened, so that the protrusion and the threaded post can move inside the irregular groove, pushing the clamping block. This allows the spacing between the two clamping blocks on the same extension plate to be adjusted, thereby improving applicability and enabling clamping and fixing bolts of different sizes. After adjusting the position of the clamping block, the nut is tightened in the opposite direction to limit and fix the adjusted clamping block, so as to prevent the clamping block from moving again during clamping.
[0008] Compared with the prior art, the advantages of this utility model are: stable clamping, which can effectively prevent bolts from shifting during processing and affecting processing quality; good applicability, which is convenient for clamping and fixing bolts of different sizes; when the motor is started, the two extended plates can move relative to each other through the cooperation of the double-ended screw and the threaded sleeve, and the cooperation of the slide groove and the slide rail, so as to clamp and fix the bolts through the clamping blocks; and the two clamping blocks set on the extended plates can be adjusted in position to adjust the distance between the two clamping blocks, so as to clamp and fix bolts of different sizes and improve applicability. 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 overall structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the internal structure of the cavity of this utility model.
[0012] Figure 3 This is a schematic diagram of the movable plate structure of this utility model.
[0013] In the diagram: 1. Base; 2. Chamber; 3. Groove; 4. Protruding plate; 5. Slide rail; 6. Motor; 7. Fixed seat; 8. Double-ended screw; 9. Support plate; 10. Threaded sleeve; 11. Slider; 12. Slide groove; 13. Movable plate; 14. Connecting seat; 15. Extension plate; 16. Irregular groove; 17. Clamping block; 18. Protrusion; 19. Threaded column; 20. Nut. 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 bolt processing fixture, including a base 1, a chamber 2 fixedly connected to the top surface of the base 1, a slot 3 penetrating through the side wall of the chamber 2, a movable plate 13 slidably connected inside the slot 3, a motor 6 disposed inside the chamber 2, a double-ended screw 8 fixedly connected to the output shaft end of the motor 6, a threaded sleeve 10 threadedly connected to the side wall of the double-ended screw 8, one end of the movable plate 13 fixedly connected to the outer side wall of the threaded sleeve 10, and a connecting seat 14 fixedly connected to the other end of the movable plate 13, an extension plate 15 fixedly connected to the side wall of the connecting seat 14, a shaped groove 16 provided on the side wall of the extension plate 15, a protrusion 18 slidably connected inside the shaped groove 16, and a clamping block 17 fixedly connected to the end face of the protrusion 18.
[0016] The side wall of the motor 6 is provided with a fixing seat 7, and the side wall of the fixing seat 7 is fixedly connected to the inner wall of the chamber 2. The side wall of the double-headed screw 8 is rotatably connected with a support plate 9, and the support plate 9 is fixedly connected to the inner wall of the chamber 2.
[0017] By adopting the above technical solution, the motor 6 is installed through the fixed base 7, the side wall of the chamber 2 is provided with heat dissipation vents, and the heat dissipation vents are corresponding to the motor 6. The support plate 9 is used to support the rotation of the double-headed screw 8. When the motor 6 is started, the double-headed screw 8 rotates under the action of the output shaft of the motor 6.
[0018] A slider 11 is fixedly connected to the side of the threaded sleeve 10 facing away from the movable plate 13. A groove 12 is provided on the side of the slider 11 facing away from the threaded sleeve 10. A protruding plate 4 is fixedly connected to the inner side wall of the chamber 2. A slide rail 5 is fixedly connected to the side wall of the protruding plate 4. The groove 12 corresponds to and is slidably connected to the slide rail 5.
[0019] By adopting the above technical solution, when the double-ended screw 8 rotates, the two threaded sleeves 10 can move relative to each other through the cooperation between the double-ended screw 8 and the threaded sleeve 10, and through the cooperation between the slide groove 12 and the slide rail 5. This allows the two movable plates 13 to move relative to each other, so as to clamp and fix the bolt through the clamping block 17, and avoid the bolt from deviating during processing and affecting the processing quality.
[0020] The clamping block 17 is located outside the irregular groove 16. The cross-section of the clamping block 17 is a right trapezoid. There are two movable plates 13, and the two movable plates 13 correspond to each other. The top surface of the protrusion 18 is fixedly connected to a threaded post 19, which is located inside the irregular groove 16. A nut 20 is provided on one side of the extension plate 15. The nut 20 corresponds to and cooperates with the threaded post 19.
[0021] By adopting the above technical solution, when it is necessary to clamp and fix bolts of different sizes, loosening the nut 20 allows the protrusion 18 and threaded post 19 to move within the irregular groove 16, pushing the clamping block 17. This allows the spacing between the two clamping blocks 17 on the same extension plate 15 to be adjusted, thereby improving applicability and enabling clamping and fixing bolts of different sizes. After adjusting the position of the clamping block 17, tightening the nut 20 in the opposite direction limits and fixes the adjusted clamping block 17, preventing it from moving again during clamping.
[0022] Working principle: When this utility model is in use, the motor 6 is started, and the double-headed screw 8 rotates under the action of the output shaft of the motor 6. Through the mutual cooperation between the double-headed screw 8 and the threaded sleeve 10, and the cooperation between the slide groove 12 and the slide rail 5, the two threaded sleeves 10 can move relative to each other, which in turn allows the two movable plates 13 to move relative to each other, so as to clamp and fix the bolt through the clamping block 17, so as to avoid the bolt from deviating during processing and affecting the processing quality.
[0023] When bolts of different sizes need to be clamped and fixed, loosen the nut 20 so that the protrusion 18 and the threaded post 19 can move within the irregular groove 16, pushing the clamping block 17. This allows the spacing between the two clamping blocks 17 on the same extension plate 15 to be adjusted to clamp and fix bolts of different sizes. After adjusting the position of the clamping block 17, tighten the nut 20 in the opposite direction to limit and fix the adjusted clamping block 17, so as to prevent the clamping block 17 from moving again during clamping.
[0024] 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 bolt processing fixture, comprising a base (1), characterized in that: The top surface of the base (1) is fixedly connected to a chamber (2). A slot (3) is provided through the side wall of the chamber (2). A movable plate (13) is slidably connected in the slot (3). A motor (6) is provided in the chamber (2). A double-headed screw (8) is fixedly connected to the output shaft end of the motor (6). A threaded sleeve (10) is threadedly connected to the side wall of the double-headed screw (8). One end of the movable plate (13) is fixedly connected to the outer side wall of the threaded sleeve (10). A connecting seat (14) is fixedly connected to the other end of the movable plate (13). An extension plate (15) is fixedly connected to the side wall of the connecting seat (14). A shaped groove (16) is provided on the side wall of the extension plate (15). A protrusion (18) is slidably connected in the shaped groove (16). A clamping block (17) is fixedly connected to the end face of the protrusion (18).
2. The bolt processing fixture as described in claim 1, characterized in that, The motor (6) has a fixed seat (7) on its side wall, and the side wall of the fixed seat (7) is fixedly connected to the inner wall of the chamber (2).
3. A bolt processing fixture as described in claim 1, characterized in that, The side wall of the double-headed screw (8) is rotatably connected to a support plate (9), and the support plate (9) is fixedly connected to the inner wall of the chamber (2).
4. A bolt processing fixture as described in claim 1, characterized in that, The threaded sleeve (10) is fixedly connected to a slider (11) on the side facing away from the movable plate (13), and the slider (11) is provided with a groove (12) on the side facing away from the threaded sleeve (10).
5. A bolt processing fixture as described in claim 4, characterized in that, The inner wall of the chamber (2) is fixedly connected to a protruding plate (4), and the side wall of the protruding plate (4) is fixedly connected to a slide rail (5). The slide groove (12) corresponds to and is slidably connected to the slide rail (5).
6. A bolt processing fixture as described in claim 1, characterized in that, The clamping block (17) is located outside the irregular groove (16), and the cross-section of the clamping block (17) is a right trapezoid.
7. A bolt processing fixture as described in claim 1, characterized in that, The top surface of the protrusion (18) is fixedly connected to a threaded post (19), which is located in the irregular groove (16). A nut (20) is provided on one side of the extension plate (15), which corresponds to and cooperates with the threaded post (19).
8. A bolt processing fixture as described in claim 1, characterized in that, There are two movable plates (13), and the two movable plates (13) correspond to each other.