Fixing device of multi-station high-speed cold header

By using a servo motor-driven bidirectional threaded rod system and a limit rod spring structure, the problem of unstable material fixation in cold heading machines is solved, enabling high-precision machining and convenient fixture maintenance, thereby reducing production costs.

CN224168660UActive Publication Date: 2026-04-28ZHEJIANG SHINETOP MACHINERY
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Patent Information

Application Number
CN202521018075.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-04-28
Estimated Expiration
2035-05-22

AI Technical Summary

Technical Problem

The unstable material fixation of existing cold heading machines leads to problems with processing accuracy and quality, low fixture maintenance efficiency, and increased production costs.

Method used

The bidirectional threaded rod system driven by a servo motor uses the threaded connection of the first and second connecting sleeves to drive the grippers to fix the material, and the clamps can be easily disassembled and installed through the limit rod and spring structure.

Benefits of technology

It improves the stability of material fixation, enhances processing accuracy and quality, reduces equipment downtime, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cold headers, and discloses a fixing device of a multi-station high-speed cold header, which comprises a main body, a top plate fixedly connected to the front side of the main body, a fixing platform fixedly connected to the inside of the top plate, a sliding groove formed inside the fixing platform, and a fixing mechanism, the fixing mechanism comprises a two-way threaded rod rotationally connected to the interior of the main body, and a first connecting sleeve is connected to the outer portion of the two-way threaded rod in a threaded mode, the two-way threaded rod is driven by the servo motor to rotate, so that the first connecting sleeve and the second connecting sleeve on the outer portion of the two-way threaded rod in different thread directions are close to each other; and meanwhile, a second connecting rod is driven to rotate in a first connecting rod, a movable plate is made to move downwards, a clamping jaw is driven to slide downwards in a sliding groove, finally, the clamping jaw fixes the materials, stability of the materials in the machining process is achieved, it is guaranteed that machining can be conducted smoothly, the machining precision and quality are improved, and meanwhile safety in the operation process is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of cold heading machine technology, and in particular to a fixing device for a multi-station high-speed cold heading machine. Background Technology

[0002] A cold heading machine is a specialized piece of equipment used for cold working of metals, typically for shaping metal materials (such as steel and aluminum) into specific forms through stamping. The working principle of a cold heading machine is to use high-frequency impact force to plastically deform the metal material at room temperature, producing precision parts. It is widely used in the automotive, aerospace, electronics, and machinery industries, particularly in the production of bolts, nuts, pins, shafts, and connectors.

[0003] In terms of material processing accuracy, the existing equipment suffers from the instability of material fixation, which may lead to material displacement during cold heading, resulting in significant dimensional deviations in the processed products and making it difficult to meet high-precision production requirements. In terms of quality, the unstable fixation of the material may cause uneven force applied to the material during processing, resulting in quality problems such as uneven product surfaces and uneven internal structures. The existing equipment also has low efficiency in fixture maintenance and replacement. Due to the inconvenience of fixture disassembly and installation, when fixtures are worn or damaged, maintenance personnel may need to spend a lot of time and effort to disassemble and replace them, leading to long-term equipment downtime and increased production costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fixing device for a multi-station high-speed cold heading machine.

[0005] This utility model is achieved using the following technical solution: a fixing device for a multi-station high-speed cold heading machine, comprising a main body, a top plate fixedly connected to the front of the main body, a fixing platform fixedly connected inside the top plate, and a sliding groove provided inside the fixing platform, and further comprising:

[0006] The fixing mechanism includes a bidirectional threaded rod rotatably connected inside the main body, and a first connecting sleeve is externally threaded to the bidirectional threaded rod. The front of the first connecting sleeve is provided with a clamping claw.

[0007] The disassembly mechanism includes a connecting block fixedly connected to the back of the main body, and a fixing block is slidably connected inside the connecting block.

[0008] As a further improvement to the above solution, a power housing is fixedly connected to the back of the main body, a servo motor is fixedly connected to the inner wall of the back of the power housing, and a bidirectional threaded rod is fixedly connected to the output end of the servo motor.

[0009] Through the above technical solution, the output end of the servo motor is connected to a bidirectional threaded rod. This structure clarifies the setting position of the power source and the starting structure of power transmission, enabling the power supply of the entire fixing mechanism to be realized, and providing a power basis for the subsequent fixing action of the gripper on the material.

[0010] As a further improvement to the above solution, a movable plate is rotatably connected to the end of the first connecting sleeve away from the first connecting sleeve, a second connecting sleeve is threadedly connected to the outside of the first connecting sleeve, a second connecting rod is rotatably connected to the inside of the second connecting sleeve, and a gripper is fixedly connected to the front of the movable plate.

[0011] The above technical solution refines the transmission circuit inside the fixing mechanism by defining the connection relationship between the first connecting sleeve, the second connecting sleeve, the first connecting rod, and the moving plate. This allows the rotation of the bidirectional threaded rod to be more accurately converted into the up-and-down movement of the gripper, improving the accuracy and stability of the fixing device in fixing the material.

[0012] As a further improvement to the above solution, the second connecting rod is rotatably connected inside the first connecting rod, the second connecting rod is rotatably connected to the bottom of the moving plate, the gripper is slidably connected inside the sliding groove, and the first connecting sleeve and the second connecting sleeve are respectively threadedly connected to the outside of the bidirectional threaded rod in different thread directions.

[0013] Through the above technical solutions, these connection relationships further define the movement relationships of each component, ensure the coordination of the entire fixing mechanism during the working process, help to achieve more stable material fixing, and improve the reliability of fixing.

[0014] As a further improvement to the above solution, a limit rod is fixedly connected to the top of the power housing, a spring is fixedly connected to the top of the limit rod, and a push block is slidably connected to the outside of the limit rod.

[0015] The above technical solution provides a basis for the operation of the disassembly mechanism. The limiting rod guides the up and down sliding of the push block, while the spring provides elastic force for the push block to reset, making the operation of the disassembly mechanism repeatable and stable.

[0016] As a further improvement to the above solution, a fixing block is fixedly connected to the outside of the pressing block, a fixing sleeve is sleeved on the outside of the connecting block, and the fixing block is slidably connected inside the connecting block.

[0017] Through the above technical solutions, the connection relationship between these structures is clarified, and the key connection parts of the disassembly mechanism are identified. This makes it possible to control the connection and disassembly of the fixed block and the fixed sleeve by pressing the push block, thereby realizing the convenient disassembly and installation of the clamp.

[0018] As a further improvement to the above solution, the connecting block is fixedly connected to the outside of the power housing, the spring is fixedly connected to the bottom of the push block, and the push block is slidably connected to the inside of the connecting block.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention uses a servo motor to drive a bidirectional threaded rod to rotate, causing the first and second connecting sleeves on the outside of the bidirectional threaded rod with different thread directions to approach each other. At the same time, it drives the second connecting rod to rotate inside the first connecting rod, and causes the moving plate to move downward, causing the gripper to slide downward inside the sliding groove. Finally, the gripper fixes the material, realizing the stability of the material during the processing, ensuring that the processing can proceed smoothly, improving the processing accuracy and quality, and also ensuring the safety of the operation.

[0021] This invention allows the clamp to slide downwards by pressing the actuating block, which in turn moves the fixing block downwards to break free from the restriction of the fixing sleeve. At this point, the connecting block can be pulled out from inside the fixing sleeve. During installation, pressing the actuating block moves the fixing block downwards, inserting the connecting block into the fixing sleeve. The fixing block then engages with the fixing sleeve to complete the fixation. This allows the clamp to be easily disassembled and installed, facilitating timely replacement or repair when the clamp malfunctions, reducing equipment downtime, improving production efficiency, and lowering equipment maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0025] Figure 4 This is an exploded view of the disassembly mechanism of this utility model;

[0026] Figure 5 This is a cross-sectional view of the disassembly mechanism of this utility model.

[0027] Explanation of key symbols:

[0028] 1. Main body; 2. Fixing mechanism; 3. Disassembly mechanism; 11. Top plate; 12. Fixing platform; 13. Sliding groove; 201. Power housing; 202. Servo motor; 203. Bidirectional threaded rod; 204. First connecting sleeve; 205. First connecting rod; 206. Moving plate; 207. Second connecting sleeve; 208. Second connecting rod; 209. Gripper; 301. Connecting block; 302. Limiting rod; 303. Spring; 304. Pressing block; 305. Fixing block; 306. Fixing sleeve. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example: Please refer to Figures 1-5 The fixing device of a multi-station high-speed cold heading machine according to this embodiment includes a main body 1, a top plate 11 fixedly connected to the front of the main body 1, a fixing platform 12 fixedly connected inside the top plate 11, and a sliding groove 13 formed inside the fixing platform 12. It also includes:

[0031] The fixing mechanism 2 includes a bidirectional threaded rod 203 rotatably connected inside the main body 1. The external thread of the bidirectional threaded rod 203 is connected to a first connecting sleeve 204. The front of the first connecting sleeve 204 is provided with a gripper 209.

[0032] The disassembly mechanism 3 includes a connecting block 301 fixedly connected to the back of the main body 1, and a fixing block 305 is slidably connected inside the connecting block 301.

[0033] A power housing 201 is fixedly connected to the back of the main body 1. A servo motor 202 is fixedly connected to the inner wall of the back of the power housing 201. A bidirectional threaded rod 203 is fixedly connected to the output end of the servo motor 202.

[0034] A movable plate 206 is rotatably connected to one end of the first connecting sleeve 204 away from the first connecting sleeve 204. A second connecting sleeve 207 is threadedly connected to the outside of the first connecting sleeve 204. A second connecting rod 208 is rotatably connected to the inside of the second connecting sleeve 207. A gripper 209 is fixedly connected to the front of the movable plate 206.

[0035] The second connecting rod 208 is rotatably connected inside the first connecting rod 205. The second connecting rod 208 is rotatably connected to the bottom of the moving plate 206. The gripper 209 is slidably connected inside the sliding groove 13. The first connecting sleeve 204 and the second connecting sleeve 207 are respectively threadedly connected to the outside of the bidirectional threaded rod 203 in different thread directions.

[0036] A limit rod 302 is fixedly connected to the top of the power housing 201, a spring 303 is fixedly connected to the top of the limit rod 302, and a push block 304 is slidably connected to the outside of the limit rod 302.

[0037] The push block 304 is externally fixedly connected to a fixing block 305, and the connecting block 301 is externally sleeved with a fixing sleeve 306. The fixing block 305 is slidably connected inside the connecting block 301.

[0038] The connecting block 301 is fixedly connected to the outside of the power housing 201, the spring 303 is fixedly connected to the bottom of the push block 304, and the push block 304 is slidably connected to the inside of the connecting block 301.

[0039] The implementation principle of the fixing device of a multi-station high-speed cold heading machine in this application embodiment is as follows: When in use, the material is first placed on the surface of the fixing platform 12. At this time, the servo motor 202 can be started to drive the bidirectional threaded rod 203 to rotate clockwise inside the main body 1. Since the first connecting sleeve 204 and the second connecting sleeve 207 are respectively threaded to the outside of the bidirectional threaded rod 203 in different thread directions, when the bidirectional threaded rod 203 rotates, the first connecting sleeve 204 and the second connecting sleeve 207 move in opposite directions. When the bidirectional threaded rod 203 rotates clockwise, the first connecting sleeve 204 and the second connecting sleeve 207 move closer to each other, thereby causing the second connecting rod 208 to rotate inside the first connecting rod 205, thereby driving the moving plate 206 to move downward, and then causing the moving plate 206 to drive the gripper 209 to slide downward inside the sliding groove 13, finally fixing the material with the gripper 209 and processing it. After processing, the servo motor 202 can be rotated counterclockwise to release the material.

[0040] If the fixture needs to be replaced or repaired, the push block 304 can be pressed. The push block 304 slides downward along the limit rod 302 inside the connecting block 301. As the push block 304 descends, it can drive the fixing block 305 to move downward, so that the fixing block 305 is released from the restriction of the fixing sleeve 306. At this time, the connecting block 301 can be pulled out from the inside of the fixing sleeve 306 to complete the removal. The push block 304 can then be released. Since the push block 304 compresses the spring 303 when it moves downward, when the push block 304 is released, the spring 303 can rebound and drive the push block 304 to reset, which is convenient for the next operation. At this time, the fixture can be replaced or repaired. When installing, simply press the push block 304 to move the fixing block 305 downward and insert the connecting block 301 into the inside of the fixing sleeve 306. Release the push block 304 to move the fixing block 305 upward and lock it into the inside of the fixing sleeve 306 to complete the fixation.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A fixing device for a multi-station high-speed cold heading machine, comprising a main body (1), a top plate (11) fixedly connected to the front of the main body (1), a fixing platform (12) fixedly connected inside the top plate (11), and a sliding groove (13) provided inside the fixing platform (12), characterized in that, Also includes: The fixing mechanism (2) includes a bidirectional threaded rod (203) rotatably connected inside the main body (1), and the external thread of the bidirectional threaded rod (203) is connected to a first connecting sleeve (204), and the front of the first connecting sleeve (204) is provided with a gripper (209). The disassembly mechanism (3) includes a connecting block (301) fixedly connected to the back of the main body (1), and a fixing block (305) is slidably connected inside the connecting block (301).

2. The fixing device for a multi-station high-speed cold heading machine as described in claim 1, characterized in that: The back of the main body (1) is fixedly connected to a power housing (201), the back inner wall of the power housing (201) is fixedly connected to a servo motor (202), and the output end of the servo motor (202) is fixedly connected to a bidirectional threaded rod (203).

3. The fixing device for a multi-station high-speed cold heading machine as described in claim 1, characterized in that: The first connecting sleeve (204) is rotatably connected to a movable plate (206) at one end away from the first connecting sleeve (204). The first connecting sleeve (204) is externally threaded to a second connecting sleeve (207). The second connecting sleeve (207) is internally rotatably connected to a second connecting rod (208). The movable plate (206) is fixedly connected to a gripper (209) on its front side.

4. The fixing device for a multi-station high-speed cold heading machine as described in claim 3, characterized in that: The second connecting rod (208) is rotatably connected inside the first connecting rod (205), and the second connecting rod (208) is rotatably connected to the bottom of the moving plate (206). The gripper (209) is slidably connected inside the sliding groove (13). The first connecting sleeve (204) and the second connecting sleeve (207) are respectively threaded to the outside of the bidirectional threaded rod (203) in different thread directions.

5. The fixing device for a multi-station high-speed cold heading machine as described in claim 2, characterized in that: A limiting rod (302) is fixedly connected to the top of the power housing (201), a spring (303) is fixedly connected to the top of the limiting rod (302), and a push block (304) is slidably connected to the outside of the limiting rod (302).

6. The fixing device for a multi-station high-speed cold heading machine as described in claim 5, characterized in that: The push block (304) is fixedly connected to the outside of a fixing block (305), and the connecting block (301) is sleeved with a fixing sleeve (306). The fixing block (305) is slidably connected inside the connecting block (301).

7. The fixing device for a multi-station high-speed cold heading machine as described in claim 6, characterized in that: The connecting block (301) is fixedly connected to the outside of the power housing (201), the spring (303) is fixedly connected to the bottom of the push block (304), and the push block (304) is slidably connected to the inside of the connecting block (301).