Multi-station automatic bolt cold header

The convenient waste collection and motor-driven gear transmission system solve the problem of debris cleaning in cold heading machines, improve equipment stability and production efficiency, extend equipment life, and ensure the consistency of bolt forming quality.

CN224294615UActive Publication Date: 2026-05-29HEBEI WANLI HIGH STRENGTH FASTENER MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI WANLI HIGH STRENGTH FASTENER MFG CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing cold heading machines cannot effectively clean up debris, which pollutes the environment and affects the precision and lifespan of the equipment. The mold replacement process is cumbersome and difficult to adapt to the production needs of different product specifications.

Method used

A multi-station automatic bolt cold heading machine was designed. It adopts a waste collection box that can be easily installed and removed. Combined with a motor-driven gear transmission system, it ensures the stability and accuracy of power transmission, achieving stable waste collection and high efficiency in bolt processing.

Benefits of technology

The operation of the waste collection box has been simplified, the stability and production efficiency of the equipment have been improved, the equipment life has been extended, and the consistency of bolt forming quality and production benefits have been ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bolt cold heading technical field, and disclose a kind of multistation automatic bolt cold header, including workbench, the inside movable mounting of workbench is equipped with waste residue collection box, and the inside of waste residue collection box is equipped with positioning hole. The utility model compared with traditional cold header, when the waste residue collection box needs to be taken out or installed, just simply pull the pull rod that is connected with the positioning block and penetrates the box, the positioning of the collection box by positioning block can be removed, and the push rod on the back of the collection box can be easily pulled out or installed in place, simple operation, labor saving, without complex process, greatly save the operation time, improve work efficiency;From the maintenance cleaning angle, the waste residue collection box that can be conveniently taken out facilitates staff to clean the production waste residue therein in time. Through the above technical scheme, the technical problem that the debris cannot be effectively cleaned in the prior art is solved.
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Description

Technical Field

[0001] This utility model relates to the field of bolt cold heading technology, and more specifically, to a multi-station automatic bolt cold heading machine. Background Technology

[0002] The multi-station automatic bolt cold heading machine is a high-efficiency, automated metal forming equipment specifically designed for the mass production of fasteners such as bolts and screws through cold heading (applying pressure to metal materials at room temperature to cause plastic deformation). Its core feature is the continuous automated processing from raw materials to finished products through the collaborative operation of multiple stations, significantly improving production efficiency and product quality.

[0003] Cold heading, based on the theory of metal plastic deformation, applies pressure to a metal billet at room temperature, causing it to plastically deform within a mold cavity, thus forming it into a predetermined shape and size. It is widely used in the efficient production of fasteners such as bolts and nuts. Currently, cold heading bolt and nut forming machinery has developed into various models and series, possessing advantages such as reliable performance, high efficiency, and stable product quality. However, existing cold heading machines still have many shortcomings: their structural design is complex, the installation process is time-consuming and labor-intensive, and subsequent maintenance is difficult; the debris generated during processing cannot be effectively cleaned, not only polluting the working environment but also potentially affecting the equipment's accuracy and service life; furthermore, the mold replacement process is cumbersome, making it difficult to quickly adapt to the production needs of different specifications of products, thus restricting production flexibility and efficiency improvement. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a multi-station automatic bolt cold heading machine, which solves the technical problem that the debris cannot be effectively cleaned in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a multi-station automatic bolt cold heading machine, which has the advantage of convenient waste collection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-station automatic bolt cold heading machine, including a workbench, a waste collection box movably installed inside the workbench, a positioning hole opened inside the waste collection box, a positioning block movably installed inside the positioning hole, a box body fixedly installed on the top of the workbench, a pull rod fixedly installed on the top of the positioning block, and one end of the pull rod penetrating the inside of the box body, a spring fixedly installed between the positioning block and the box body, and a push rod fixedly installed on the back of the waste collection box.

[0007] According to one aspect, a cold heading box is fixedly installed on the top of the workbench. A sleeve block is movably installed inside the cold heading box. A screw rod is threaded into the sleeve block, and both ends of the screw rod penetrate the interior of the cold heading box. A first motor is fixedly installed on the left side of the cold heading box, and a drive gear is fixedly installed at the output end of the first motor. One end of the drive gear is movably installed inside the cold heading box. A driven gear is fixedly installed at one end of the screw rod, and the driven gear meshes with the drive gear. A guide post is fixedly installed inside the workbench. A moving rod is movably installed inside the guide post, and the top of the moving rod is fixedly connected to the sleeve block. A second motor is movably installed inside the moving rod. A bolt drill bit is fixedly installed at the output end of the second motor. A limit groove is formed inside the left side of the cold heading box, and a bolt mold is movably installed inside the limit groove.

[0008] According to one aspect, a handle is fixedly installed on the left side of the bolt mold, and the outer surface of the handle is U-shaped.

[0009] According to one aspect, a support plate is fixedly installed at the bottom of the workbench, and a connecting plate is fixedly installed between two of the support plates.

[0010] According to one aspect, a push rod is fixedly installed on the back of the waste collection box, and the outer surface of the push rod is L-shaped.

[0011] According to one aspect, a reinforcing rib is fixedly installed at the angle between the support plate and the connecting plate, and the reinforcing rib is triangular in shape.

[0012] According to one aspect, the workbench has a fixing groove inside, a fixing block is movably installed inside the fixing groove, and a work box is fixedly installed on the back of the fixing block.

[0013] According to one aspect, a support base is fixedly installed on the right side of the cold heading box, and the interior of the support base is in the form of a U-shaped groove.

[0014] According to one aspect, the inner diameter of the fixing groove is equal to the outer diameter of the fixing block, and the interior of the fixing groove has a smooth surface design.

[0015] According to one aspect, a bolt collection box is fixedly installed on the top of the workbench, and the bolt collection box is made of stainless steel.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Compared with traditional cold heading machines, this utility model allows for simple removal or installation of the waste collection box. Simply pull the lever that runs through the box and connects to the positioning block to release the positioning restriction. The box can then be easily pulled out or installed using the push rod on the back. This simple and labor-saving operation eliminates complex procedures, significantly reducing operating time and improving work efficiency. From a maintenance and cleaning perspective, the easily removable waste collection box facilitates timely cleaning of production waste, preventing waste accumulation from affecting normal equipment operation, ensuring the equipment is always in good working condition, and extending its service life. Regarding stability, the spring reset during installation pushes the positioning block into the positioning hole for fixation, ensuring the waste collection box remains stable during operation and does not shift due to vibration. This guarantees the accuracy and reliability of waste collection, making the entire production process more stable and orderly, and improving product quality and production efficiency.

[0018] 2. Compared with traditional cold heading machines, this utility model uses a motor-driven gear transmission to drive the screw to rotate, which in turn causes the sleeve block to move the moving rod precisely. The transmission method of gear meshing and threaded engagement ensures the stability and accuracy of power transmission, ensuring that the moving rod accurately reaches the designated position, laying the foundation for precise bolt processing. Secondly, the guide columns inside the worktable constrain the moving rod, making its movement synchronous and stable, effectively avoiding movement deviation, improving processing stability and reliability, and ensuring the consistency of bolt forming quality. Furthermore, when the moving rod reaches the designated position, the second motor immediately starts to drive the bolt drill bit to rotate at high speed. At the same time, the bolt mold precisely positions and constrains the bolt blank. The close and efficient cooperation of all components realizes rapid cold heading of bolts, greatly shortening the processing time of a single bolt and improving production efficiency. This design also makes the equipment structure compact, with clear functions and smooth cooperation of each component, which facilitates daily maintenance and management, reduces the probability of failure, and reduces maintenance costs and downtime. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a frontal three-dimensional appearance structure diagram of one embodiment of the present utility model;

[0021] Figure 2 This is a side perspective view of one embodiment of the present invention.

[0022] Figure 3 This is a top-view three-dimensional appearance structure diagram of one embodiment of the present invention;

[0023] Figure 4 This is a partial cross-sectional view of the workbench in one embodiment of the present invention;

[0024] Figure 5 for Figure 4 A magnified structural diagram at point A in the embodiment;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the workbench in one embodiment of the present invention;

[0026] Figure 7 for Figure 6 A magnified structural diagram at point A in the embodiment;

[0027] Figure 8 This is a schematic diagram of the exploded structure of the bolt mold in one embodiment of the present invention.

[0028] In the diagram: 1. Workbench; 2. Cold heading box; 3. Bolt mold; 4. Handle; 5. Bolt collection box; 6. Support plate; 7. Reinforcing rib; 8. Connecting plate; 9. Waste collection box; 10. Fixing groove; 11. Fixing block; 12. Work box; 13. Driven gear; 14. First motor; 15. Support base; 16. Push rod; 17. Box body; 18. Pull rod; 19. Positioning block; 20. Spring; 21. Guide column; 22. Bolt drill bit; 23. Sleeve block; 24. Screw; 25. Moving rod; 26. Second motor; 27. Drive gear; 28. Positioning hole; 29. ​​Limiting groove. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0030] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1 to 8 As shown, this invention illustrates a multi-station automatic bolt cold heading machine according to one embodiment of the present invention, including a workbench 1. A waste collection box 9 is movably installed inside the workbench 1. A positioning hole 28 is provided inside the waste collection box 9. A positioning block 19 is movably installed inside the positioning hole 28. A box body 17 is fixedly installed on the top of the workbench 1. A pull rod 18 is fixedly installed on the top of the positioning block 19, and one end of the pull rod 18 passes through the inside of the box body 17. A spring 20 is fixedly installed between the positioning block 19 and the box body 17. A push rod 16 is fixedly installed on the back of the waste collection box 9.

[0036] The waste collection box 9 is movably installed inside the workbench 1 to collect production waste. When it is necessary to remove or install the waste collection box 9, by pulling the pull rod 18 that passes through the box body 17 and is connected to the positioning block 19, the positioning block 19 will move in the positioning hole 28 inside the waste collection box 9. At the same time, the spring 20 between the positioning block 19 and the box body 17 is compressed, so that the positioning block 19 is released from the positioning restriction of the waste collection box 9. At this time, it can be pulled out with the help of the push rod 16 on the back of the waste collection box 9. During installation, push the push rod 16 to put the waste collection box 9 in place, release the pull rod 18, the spring 20 returns to its original position and pushes the positioning block 19 into the positioning hole 28, so as to fix the waste collection box 9.

[0037] The multi-station automatic bolt cold heading machine has a movable waste collection box 9 inside its workbench 1 for collecting waste generated during production. To remove or install the waste collection box 9, simply pull the pull rod 18, which passes through the housing 17 and is connected to the positioning block 19. When pulled, the positioning block 19 moves within the positioning hole 28 inside the waste collection box 9, simultaneously compressing the spring 20 between the positioning block 19 and the housing 17, releasing the positioning restriction of the positioning block 19 on the waste collection box 9. Then, it can be pulled out using the push rod 16 on the back of the waste collection box 9. For installation, push the push rod 16 to position the waste collection box 9, release the pull rod 18, and the spring 20 returns to its original position, pushing the positioning block 19 into the positioning hole 28 to complete the fixing. Compared to traditional cold heading machines, this cold heading machine allows for simple removal or installation of the waste collection box with just a pull rod. A pull rod that runs through the housing and connects to the positioning block removes the positioning block's restriction on the collection box. The collection box can then be easily pulled out or installed using the push rod on the back. This simple and labor-saving operation, without complicated procedures, significantly reduces operating time and improves work efficiency. From a maintenance and cleaning perspective, the easily removable waste collection box allows staff to promptly clean up production waste, preventing waste accumulation from affecting normal equipment operation, ensuring the equipment is always in good working condition, and extending its service life. Regarding stability, during installation, a spring reset pushes the positioning block into the positioning hole for fixation, ensuring the waste collection box remains stable during equipment operation and will not shift due to vibration. This guarantees the accuracy and reliability of waste collection, making the entire production process more stable and orderly, and improving product quality and production efficiency.

[0038] In some examples, a cold heading box 2 is fixedly installed on the top of the workbench 1. A sleeve block 23 is movably installed inside the cold heading box 2. A screw 24 is threaded inside the sleeve block 23, and both ends of the screw 24 pass through the interior of the cold heading box 2. A first motor 14 is fixedly installed on the left side of the cold heading box 2. A drive gear 27 is fixedly installed at the output end of the first motor 14. One end of the drive gear 27 is movably installed inside the cold heading box 2. A driven gear 13 is fixedly installed at one end of the screw 24, and the driven gear 13 meshes with the drive gear 27. A guide post 21 is fixedly installed inside the workbench 1. A moving rod 25 is movably installed inside the guide post 21, and the top of the moving rod 25 is fixedly connected to the sleeve block 23. A second motor 26 is movably installed inside the moving rod 25. A bolt drill bit 22 is fixedly installed at the output end of the second motor 26. A limit groove 29 is opened inside the left side of the cold heading box 2, and a bolt mold 3 is movably installed inside the limit groove 29.

[0039] The first motor 14 on the left side of the cold heading box 2 at the top of the workbench 1 operates, and its output end drives the drive gear 27 to rotate. Because the drive gear 27 meshes with the driven gear 13 at one end of the screw 24, and the screw 24 is threadedly sleeved in the movable sleeve block 23 inside the cold heading box 2, with both ends penetrating the cold heading box 2, the rotation of the screw 24 drives the sleeve block 23 to make linear motion.

[0040] The lower part of the sleeve block 23 is connected to the moving rod 25. Under the constraint of the guide column 21 inside the worktable 1, the moving rod 25 moves synchronously and stably with the sleeve block 23. When it reaches the designated work position, the second motor 26 installed inside the moving rod 25 starts and drives the bolt drill bit 22 to rotate at high speed. At the same time, the bolt mold 3 in the limiting groove 29 on the left side of the cold heading box 2 positions and constrains the bolt blank. The bolt drill bit 22 applies cold heading force to complete the bolt forming.

[0041] After the multi-station automatic bolt cold heading machine is started, the first motor 14 on the left side of the cold heading box 2 at the top of the workbench 1 starts to run first. Its output end drives the drive gear 27 to rotate. Since the drive gear 27 and the driven gear 13 at one end of the screw 24 are tightly meshed, and the screw 24 is threaded in the movable sleeve block 23 inside the cold heading box 2 with both ends penetrating the cold heading box 2, the screw 24 rotates accordingly, thereby driving the sleeve block 23 to make linear motion.

[0042] A movable rod 25 is connected below the sleeve block 23. Constrained by the guide column 21 inside the worktable 1, the movable rod 25 moves synchronously and stably with the sleeve block 23. When it reaches the designated position, the second motor 26 installed inside the movable rod 25 starts, driving the bolt drill bit 22 to rotate at high speed. Simultaneously, the bolt mold 3 in the limiting groove 29 on the left side of the cold heading box 2 precisely positions and constrains the bolt blank. The bolt drill bit 22 applies cold heading force, ultimately completing the bolt forming. Compared with traditional cold heading machines, this cold heading machine drives the screw to rotate via a motor-driven gear transmission, thereby enabling the sleeve block to move the movable rod precisely. The gear meshing and threaded connection transmission method ensures the stability and accuracy of power transmission, ensuring that the movable rod accurately reaches the designated position, thus ensuring the bolt forming... Precision machining lays the foundation. Secondly, the guide columns inside the worktable constrain the moving rod, ensuring its synchronous and stable movement, effectively avoiding movement deviations, improving processing stability and reliability, and guaranteeing the consistency of bolt forming quality. Furthermore, once the moving rod reaches the designated position, the second motor immediately starts, driving the bolt drill bit to rotate at high speed. Simultaneously, the bolt mold precisely positions and constrains the bolt blank. The close and efficient cooperation of all components enables rapid cold forging of bolts, greatly shortening the processing time of a single bolt and improving production efficiency. This design also makes the equipment structure compact, with clearly defined functions and smooth cooperation among components, facilitating daily maintenance and management, reducing the probability of malfunctions, and minimizing maintenance costs and downtime.

[0043] In some examples, a handle 4 is fixedly installed on the left side of the bolt mold 3, and the outer surface of the handle 4 is U-shaped.

[0044] Since the outer surface of the handle 4 is U-shaped on the left side of the bolt mold 3, it is convenient to hold the handle 4 and slowly insert the cold heading box 2 into the inside of the limiting groove 29, which facilitates the installation of the bolt mold 3 inside the limiting groove 29.

[0045] In some examples, a support plate 6 is fixedly installed at the bottom of the workbench 1, and a connecting plate 8 is fixedly installed between the two support plates 6.

[0046] Since a connecting plate 8 is fixedly installed between the two support plates 6, the cooperation between the support plates 6 and the connecting plate 8 facilitates stable support for the workbench 1, ensuring the stability of the workbench 1 during use and improving the efficiency of the workbench 1.

[0047] In some examples, a push rod 16 is fixedly installed on the back of the waste collection box 9, and the outer surface of the push rod 16 is L-shaped.

[0048] Since the outer surface of the push rod 16 is L-shaped on the back of the waste collection box 9, and the L-shaped push rod 16 is ergonomic, it is easy to hold the push rod 16 and slowly insert the waste collection box 9 into the workbench 1.

[0049] In some examples, a reinforcing rib 7 is fixedly installed at the angle between the support plate 6 and the connecting plate 8, and the reinforcing rib 7 is triangular in shape.

[0050] Since the reinforcing rib 7 is triangular in shape at the angle between the support plate 6 and the connecting plate 8, and the triangle has the characteristic of stability, it is convenient to provide stable support for the support plate 6 and the connecting plate 8.

[0051] In some examples, the workbench 1 has a fixing groove 10 inside, a fixing block 11 is movably installed inside the fixing groove 10, and a work box 12 is fixedly installed on the back of the fixing block 11.

[0052] By holding the work box 12, the fixing block 11 is slowly inserted into the fixing groove 10. The fixing groove 10 limits and fixes the fixing block 11. By adding the work box 12, it is convenient for the staff to take out and place maintenance tools inside the work box 12, and it is convenient to carry out maintenance on the cold heading machine in a timely manner.

[0053] In some examples, a support base 15 is fixedly installed on the right side of the cold heading box 2, and the interior of the support base 15 is in the form of a U-shaped groove.

[0054] Since the support base 15 has a U-shaped groove on the right side of the cold heading box 2, the support base 15 can provide stable support for the first motor 14, ensuring the stability of the first motor 14 during use.

[0055] In some examples, the inner diameter of the fixing groove 10 is equal to the outer diameter of the fixing block 11, and the interior of the fixing groove 10 has a smooth surface design.

[0056] Since the inner diameter of the fixing groove 10 is equal to the outer diameter of the fixing block 11, and the inside of the fixing groove 10 has a smooth surface design, the fixing block 11 is slowly inserted into the inside of the fixing groove 10 by holding the work box 12 by hand, which ensures the installation efficiency of the work box 12.

[0057] In some examples, a bolt collection box 5 is fixedly installed on the top of the workbench 1, and the bolt collection box 5 is made of stainless steel.

[0058] Because the bolt collection box 5 is made of stainless steel on the top of the workbench 1, the stainless steel bolt collection box 5 has good corrosion resistance, making it easy to put bolts into the bolt collection box 5, thus ensuring the efficiency of bolt processing.

[0059] Working principle and usage process of this utility model:

[0060] The waste collection box 9 is movably installed inside the workbench 1 to collect production waste. When it is necessary to remove or install the waste collection box 9, by pulling the pull rod 18 that passes through the box body 17 and is connected to the positioning block 19, the positioning block 19 will move in the positioning hole 28 inside the waste collection box 9. At the same time, the spring 20 between the positioning block 19 and the box body 17 is compressed, so that the positioning block 19 is released from the positioning restriction of the waste collection box 9. At this time, it can be pulled out with the help of the push rod 16 on the back of the waste collection box 9. During installation, push the push rod 16 to put the waste collection box 9 in place, release the pull rod 18, the spring 20 returns to its original position and pushes the positioning block 19 into the positioning hole 28, so as to fix the waste collection box 9.

[0061] The first motor 14 on the left side of the cold heading box 2 at the top of the workbench 1 operates, and its output end drives the drive gear 27 to rotate. Because the drive gear 27 meshes with the driven gear 13 at one end of the screw 24, and the screw 24 is threadedly sleeved in the movable sleeve block 23 inside the cold heading box 2, with both ends penetrating the cold heading box 2, the rotation of the screw 24 drives the sleeve block 23 to make linear motion.

[0062] The lower part of the sleeve block 23 is connected to the moving rod 25. Under the constraint of the guide column 21 inside the worktable 1, the moving rod 25 moves synchronously and stably with the sleeve block 23. When it reaches the designated work position, the second motor 26 installed inside the moving rod 25 starts and drives the bolt drill bit 22 to rotate at high speed. At the same time, the bolt mold 3 in the limiting groove 29 on the left side of the cold heading box 2 positions and constrains the bolt blank. The bolt drill bit 22 applies cold heading force to complete the bolt forming.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-station automatic bolt cold heading machine, comprising a worktable (1), characterized in that: A waste collection box (9) is movably installed inside the workbench (1). A positioning hole (28) is opened inside the waste collection box (9). A positioning block (19) is movably installed inside the positioning hole (28). A box body (17) is fixedly installed on the top of the workbench (1). A pull rod (18) is fixedly installed on the top of the positioning block (19), and one end of the pull rod (18) passes through the inside of the box body (17). A spring (20) is fixedly installed between the positioning block (19) and the box body (17). A push rod (16) is fixedly installed on the back of the waste collection box (9).

2. The multi-station automatic bolt cold heading machine according to claim 1, characterized in that: A cold heading box (2) is fixedly installed on the top of the workbench (1). A sleeve block (23) is movably installed inside the cold heading box (2). A screw rod (24) is threaded inside the sleeve block (23), and both ends of the screw rod (24) pass through the interior of the cold heading box (2). A first motor (14) is fixedly installed on the left side of the cold heading box (2), and a drive gear (27) is fixedly installed on the output end of the first motor (14). One end of the drive gear (27) is movably installed inside the cold heading box (2). A driven gear (13) is fixedly installed on one end of the screw rod (24), and the driven gear (13) is movably installed on the output end of the screw rod (24). The moving gear (13) meshes with the driving gear (27). A guide column (21) is fixedly installed inside the worktable (1). A moving rod (25) is movably installed inside the guide column (21). The top of the moving rod (25) is fixedly connected to the sleeve block (23). A second motor (26) is movably installed inside the moving rod (25). A bolt drill bit (22) is fixedly installed at the output end of the second motor (26). A limit groove (29) is opened inside the left side of the cold heading box (2). A bolt mold (3) is movably installed inside the limit groove (29).

3. The multi-station automatic bolt cold heading machine according to claim 2, characterized in that: A handle (4) is fixedly installed on the left side of the bolt mold (3), and the outer surface of the handle (4) presents a U-shaped form.

4. The multi-station automatic bolt cold heading machine according to claim 1, characterized in that: A support plate (6) is fixedly installed at the bottom of the workbench (1), and a connecting plate (8) is fixedly installed between the two support plates (6).

5. A multi-station automatic bolt cold heading machine according to claim 1, characterized in that: A push rod (16) is fixedly installed on the back of the waste collection box (9), and the outer surface of the push rod (16) is L-shaped.

6. A multi-station automatic bolt cold heading machine according to claim 4, characterized in that: A reinforcing rib (7) is fixedly installed at the angle between the support plate (6) and the connecting plate (8), and the reinforcing rib (7) is triangular in shape.

7. A multi-station automatic bolt cold heading machine according to claim 1, characterized in that: The workbench (1) has a fixed groove (10) inside, and a fixed block (11) is movably installed inside the fixed groove (10). A work box (12) is fixedly installed on the back of the fixed block (11).

8. A multi-station automatic bolt cold heading machine according to claim 2, characterized in that: A support base (15) is fixedly installed on the right side of the cold heading box (2), and the interior of the support base (15) presents a U-shaped groove.

9. A multi-station automatic bolt cold heading machine according to claim 7, characterized in that: The inner diameter of the fixing groove (10) is equal to the outer diameter of the fixing block (11), and the interior of the fixing groove (10) has a smooth surface design.

10. A multi-station automatic bolt cold heading machine according to claim 1, characterized in that: A bolt collection box (5) is fixedly installed on the top of the workbench (1), and the bolt collection box (5) is made of stainless steel.