A clamping device for producing a check bolt

By using a modular three-jaw chuck and a sensor-monitored anti-loosening bolt clamping device, the problems of time-consuming fixture replacement and bolt micro-slippage are solved, enabling rapid adaptation and high-precision bolt processing.

CN224294731UActive Publication Date: 2026-05-29JIANGSU YAODE TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YAODE TECH DEV CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-29

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  • Figure CN224294731U_ABST
    Figure CN224294731U_ABST
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Abstract

The utility model discloses a kind of anti-loose bolt production clamping devices, it is related to anti-loose bolt production technical field, including three-jaw chuck, it is characterized in that, the claw is slidably connected on the three-jaw chuck, the top pin of the side of the claw towards anti-loose bolt is connected with modular head adapter block, the side surface of the modular head adapter block is equipped with second groove, the inside of the second groove is equipped with bolt, the inside of the second groove is fixedly installed with stop plate, the modular head adapter block pin is connected on connecting block;The utility model realizes modularization detachable by the part of claw clamping bolt head on three-jaw chuck, and pin connection structure (modular head adapter block and connecting block are connected by pin hole), realize that modularization adapter block is quickly replaced in working scene, to cope with the processing of different shape bolt, sensor fixed on the side of modularization adapter block real-time monitoring the holding force of bolt head position and clamp in limiting groove, ensure that the holding force of different specifications bolt is accurately matched, realize high-efficiency high-precision processing.
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Description

Technical Field

[0001] This utility model relates to the field of anti-loosening bolt production technology, specifically to an anti-loosening bolt production clamping device. Background Technology

[0002] Currently, the mainstream clamping devices in the anti-loosening bolt manufacturing field generally adopt an integrated limiting groove structure, which has significant limitations in head adaptability. Taking hexagonal head bolts as a typical example, although such clamps can meet basic clamping requirements, when dealing with flange head bolts widely used in automotive chassis or meson head bolts in precision electronic equipment, special clamps must be used to achieve clamping. However, the clamping process is too time-consuming. In high-frequency vibration environments such as bolt processing in engineering machinery, traditional rigid clamping surfaces are difficult to effectively suppress the micro-slippage of the head, and the resulting bolt rotational offset directly leads to poor manufacturing accuracy.

[0003] To address this issue, we designed a clamping device for anti-loosening bolt production. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping device for anti-loosening bolt production, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a clamping device for anti-loosening bolt production, including a three-jaw chuck. The three-jaw chuck is characterized in that a jaw is slidably connected to the jaw, and a modular head adapter block is pin-connected to the top of the jaw facing the anti-loosening bolt. A second groove is provided on the side of the modular head adapter block, and a pin is provided inside the second groove. A stop plate is fixedly installed inside the second groove, and the modular head adapter block is pin-connected to a connecting block.

[0006] Furthermore, a sliding groove is provided on the side of the claw, and the sliding groove is slidably connected to the slider.

[0007] Furthermore, a first groove is provided below the modular head adapter block, and a screw hole is provided at the bottom of the first groove.

[0008] Furthermore, the first groove is provided with a threaded insert, and fastening bolts are provided at the two corners of the threaded insert.

[0009] Furthermore, a sensor is fixedly installed on the side of the modular head adapter block, and a limit groove is opened on the side of the modular head adapter block facing the anti-loosening bolt.

[0010] Furthermore, a pin hole is provided on the side of the connecting block, and the connecting block is installed in the third groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention modularizes and detaches the bolt head clamping portion of the three-jaw chuck, and incorporates a pin connection structure (modular head adapter block and connecting block are connected via pin holes). This allows for rapid replacement of the modular adapter block in various work scenarios, enabling the processing of bolts of different shapes. Sensors fixed to the side of the modular adapter block monitor the bolt head position within the limiting groove and the clamping force of the fixture in real time, ensuring precise matching of the clamping force for bolts of different specifications and achieving high-efficiency and high-precision processing. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the chuck claw of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the modular head adapter block of this utility model;

[0016] Figure 4 This is a schematic diagram of the anti-loosening bolt and the corresponding modular head adapter block of this utility model;

[0017] Figure 5 This is a rear view structural diagram of the modular head adapter block of this utility model.

[0018] In the diagram: 1. Three-jaw chuck; 2. Jaw; 3. Modular head adapter block; 4. Screw hole; 5. Slide groove; 6. First groove; 7. Fastening bolt; 8. Threaded insert; 9. Limiting groove; 10. Pin; 11. Stop plate; 12. Sensor; 13. Dodecagonal head anti-loosening bolt and its modular head adapter block; 14. Idler head anti-loosening bolt and its modular head adapter block; 15. Hexagonal head anti-loosening bolt and its modular head adapter block; 16. Slider; 17. Second groove; 18. Connecting block; 19. Pin hole; 20. Third groove. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5This utility model provides a technical solution: a clamping device for producing anti-loosening bolts, including a three-jaw chuck 1, characterized in that a jaw 2 is slidably connected to the three-jaw chuck 1, and a modular head adapter block 3 is pin-connected to the top of the jaw 2 facing the anti-loosening bolt. A second groove 17 is provided on the side of the modular head adapter block 3, and a pin 10 is provided inside the second groove 17. A stop plate 11 is fixedly installed inside the second groove 17, and the modular head adapter block 3 is pin-connected to a connecting block 18.

[0021] The three jaws 2 of the three-jaw chuck body can move closer or further away from each other synchronously. When they move closer, they clamp the anti-loosening bolts. The synchronous drive structure of the jaws 2 is existing technology and will not be described in detail in this embodiment.

[0022] See Figure 1-5 The side of the chuck 2 is provided with a sliding groove 5, and the sliding groove 5 is slidably connected to the slider 16. The position of the chuck 2 can be changed by adjusting the position of the slider 16 when processing bolts of different types.

[0023] See Figure 1-5 The modular head adapter block 3 has a first groove 6 below it, and a screw hole 4 is provided at the bottom of the first groove 6. The screw hole 4 is located at the upper left and lower right corners of the first groove 6.

[0024] See Figure 1-5 The first groove 6 is provided with a threaded insert 8, and fastening bolts 7 are provided on the two corners of the threaded insert 8. The threads on the threaded insert 8 are matched with the threads of the anti-loosening bolt to prevent excessive clamping force from damaging or deforming the threads on the bolt.

[0025] See Figure 1-5 A sensor 12 is fixedly installed on the side of the modular head adapter block 3. A limiting groove 9 is opened on the side of the modular head adapter block 3 facing the anti-loosening bolt. The modular head adapter block 3 with the corresponding limiting groove 9 can be replaced at will according to the different shapes of bolt heads.

[0026] See Figure 1-5 The connecting block 18 has a pin hole 19 on its side. The connecting block 18 is installed in the third groove 20 and is connected and locked to the modular head adapter block 3 by a pin 10.

[0027] Working principle: Before use, when the three-jaw chuck 1 drives the three jaws 2 to retract radially in sync, the limiting groove 9 of the modular head adapter block 3 precisely engages the anti-loosening bolt head (such as hexagonal head / millimeter head, etc.). It is connected to the top pin of the jaw 2 through the pin hole 19 of the connecting block 18, and the pin 10 passes through the second groove 17 and the stop plate 11 to form a double lock, which completely suppresses the head displacement caused by processing vibration. The threaded insert 8 is embedded in the first groove 6 and fixed to the fastening bolt 7 at both corners through the screw hole 4. The outer strip-shaped protrusion thread precisely meshes with the bolt thread, evenly distributing the clamping force and avoiding thread deformation. The sensor 12 monitors the position of the bolt head and the clamping force in the limiting groove 9 in real time. If the offset or the clamping force is too large, the machine is immediately stopped by interlocking. The slider 16 slides laterally along the slide groove 5, driving the jaw 2 to make a fine adjustment and dynamically adjust to meet the processing requirements of bolts of different specifications.

Claims

1. A clamping device for producing anti-loosening bolts, comprising a three-jaw chuck (1), characterized in that, The three-jaw chuck (1) is slidably connected to a jaw (2). The top of the jaw (2) facing the anti-loosening bolt is connected to a modular head adapter block (3). The side of the modular head adapter block (3) is provided with a second groove (17). The inside of the second groove (17) is provided with a pin (10). The inside of the second groove (17) is fixedly installed with a stop plate (11). The modular head adapter block (3) is pin connected to the connecting block (18).

2. The anti-loosening bolt production clamping device as described in claim 1, characterized in that: The side of the claw (2) is provided with a sliding groove (5), and the sliding groove (5) is slidably connected to the slider (16).

3. The anti-loosening bolt production clamping device as described in claim 1, characterized in that: The modular head adapter block (3) has a first groove (6) at its bottom, and a screw hole (4) is provided at the bottom of the first groove (6).

4. The anti-loosening bolt production clamping device as described in claim 3, characterized in that: The first groove (6) is provided with a threaded insert (8), and fastening bolts (7) are provided on the two corners of the threaded insert (8).

5. The anti-loosening bolt production clamping device as described in claim 1, characterized in that: A sensor (12) is fixedly installed on the side of the modular head adapter block (3), and a limit groove (9) is opened on the side of the modular head adapter block (3) facing the anti-loosening bolt.

6. The anti-loosening bolt production clamping device as described in claim 1, characterized in that: The connecting block (18) has a pin hole (19) on its side and is installed in the third groove (20).