Positioning fixture for multi-station cold header

Abstract

The utility model relates to the technical field of fixture, and disclose a kind of positioning fixture for multi-station cold header, including workbench, the inside of workbench is provided with sliding slot, the inside movable mounting of sliding slot has sleeve block, the inside thread sleeve of sleeve block is connected with bidirectional screw rod, and the both ends of bidirectional screw rod are through the inside of workbench, and the top fixed mounting of sleeve block has fixed frame.The utility model compared with traditional positioning fixture, the positioning fixture, first motor drive gear transmission, drive bidirectional screw rod rotation, utilize its two ends opposite thread, let two sleeve blocks synchronous symmetrical movement, can rapidly and accurately adjust the spacing between clamping plate, greatly shorten the reloading time of different specifications bolt raw material, significantly improve production efficiency, run smoothly and reliably, sliding slot provides linear guidance for sleeve block;Through the above technical scheme, the technical problem of unstable clamping of bolt raw material in the prior art is solved.

Description

Technical Field

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

[0002] Positioning fixtures for multi-station cold heading machines are specialized devices used in the cold heading process to fix, position, and transfer metal billets or semi-finished parts. Their core function is to precisely constrain the spatial position and orientation of the billet across multiple stations through mechanical structures, ensuring the machining accuracy and process stability of parts during high-speed, high-pressure cold heading. In existing technologies, multi-station cold heading machines using mechanical clamping mechanisms to fix bolt raw materials can meet basic requirements, but significant problems exist. Regarding clamping force control, improper pressure adjustment can easily lead to over-clamping, causing surface damage and deformation of thin-walled or high-strength materials, and even breakage of small bolts; under-clamping can cause the raw material to slip and deflect, resulting in defects such as bolt head misalignment, with low-end equipment achieving a scrap rate of 5%-10%. In terms of positioning accuracy, long-term wear of the clamping blocks increases repeatability errors, affecting bolt dimensional consistency; in multi-station collaboration, gaps or wear in the mechanical transmission chain can cause material transfer displacement, leading to product dimensional deviations. Furthermore, its adaptability and flexibility are insufficient, mold changes are time-consuming, and it is difficult to meet the needs of flexible production; the compatibility of irregular parts is poor, which can easily lead to material deflection. Vibration and impact issues cannot be ignored either. Cold heading impact can be transmitted to the fixture, causing loosening and wear. High-speed cold heading may also cause resonance, resulting in fixture vibration and structural damage, which seriously affects machining accuracy, efficiency and equipment life. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a positioning fixture for a multi-station cold heading machine, which solves the technical problem of unstable clamping of bolt raw materials in the prior art.

[0004] According to one aspect, at least one embodiment of the present invention provides a positioning fixture for a multi-station cold heading machine, including a worktable, a sliding groove is provided inside the worktable, a sleeve block is movably installed inside the sliding groove, a bidirectional screw is threaded inside the sleeve block, and both ends of the bidirectional screw pass through the inside of the worktable, a fixing frame is fixedly installed on the top of the sleeve block, an mounting plate is movably installed inside the fixing frame, and a clamping plate is fixedly installed on the inner side of the mounting plate;

[0005] A first motor is fixedly installed on the right side of the workbench. A drive gear is fixedly installed on the output end of the first motor and is movably installed inside the workbench. A driven gear is fixedly installed on one end of the bidirectional screw and meshes with the drive gear. A cold heading mechanism is fixedly installed on the top of the workbench.

[0006] According to another aspect, a box is movably installed inside the fixed frame, and a positioning hole is opened inside the mounting plate. A positioning block is movably installed in the positioning hole. A pull rod is fixedly installed at one end of the positioning block, and one end of the pull rod passes through the inside of the box. A spring is fixedly installed between the box and the positioning block.

[0007] According to another aspect, the cold heading mechanism is fixedly installed on the top of the workbench. The cold heading mechanism includes a fixed frame fixedly installed on the top of the workbench. A cylinder is fixedly installed on the inner side of the top of the fixed frame. A second motor is fixedly installed at the bottom of the cylinder. A cold heading head is fixedly installed at the output end of the second motor.

[0008] According to another aspect, a support plate is fixedly installed at the bottom of the workbench, and a fixing plate is fixedly installed between the two support plates.

[0009] According to another aspect, a handrail is fixedly installed on the top of the mounting plate, and the outer surface of the handrail is U-shaped.

[0010] According to another 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.

[0011] According to another aspect, a support base is fixedly installed on the right side of the workbench, and the interior of the support base has a U-shaped groove.

[0012] According to another aspect, a reinforcing rib is fixedly installed at the included angle of the clamping plate, and the reinforcing rib is triangular in shape.

[0013] According to another aspect, the sleeve block and the fixed frame are paired up, with two sets in total, movably installed inside the workbench.

[0014] According to another 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] The beneficial effects of the embodiments of this utility model are as follows:

[0016] 1. Compared with traditional positioning fixtures, this utility model features a first motor-driven gear transmission that rotates a bidirectional screw. Utilizing the opposite threads at both ends, the two sleeve blocks move synchronously and symmetrically, allowing for rapid and precise adjustment of the clamping plate spacing. This significantly shortens the changeover time for bolts of different specifications, substantially improving production efficiency. The fixture operates smoothly and reliably. A sliding groove provides linear guidance for the sleeve blocks, preventing movement deviation and jamming, ensuring stable displacement of the fixed frame and mounting plate, and making the clamping plate adjustment stable and durable during positioning. The screw's self-locking mechanism activates immediately after the motor stops, preventing changes in the clamping position due to vibration or external force, ensuring accurate cold heading. Furthermore, it is highly adaptable, flexibly handling bolts of various diameters to meet diverse production needs, enhancing equipment versatility, reducing equipment costs, and significantly improving market competitiveness and economic benefits.

[0017] 2. Compared with traditional positioning clamps, this utility model allows for quick and precise positioning of the clamping plate by simply pulling and pushing it in, using a lever and handle. No complex tools or specialized skills are required, significantly reducing installation time and effectively improving overall production efficiency. This makes production more efficient and streamlined. Precise and stable positioning is the core highlight of this design. Utilizing the elastic potential energy of the spring and a mechanical interlocking structure, the positioning block precisely passes through the positioning hole after the mounting plate is embedded in the fixing frame, achieving dual axial and radial limiting. This prevents loosening and offset of the clamping plate during use, ensuring the accuracy of bolt clamping and guaranteeing product quality. Furthermore, its flexible structure adapts to clamping plates of different specifications. Simply adjusting the size of the mounting plate and positioning hole can meet diverse production needs, enhancing equipment versatility, reducing enterprise production costs, and improving market competitiveness. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a frontal three-dimensional appearance structure diagram of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the bidirectional screw in one embodiment of the present invention;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A in the embodiment;

[0022] Figure 4 This is a top-view perspective view of the three-dimensional appearance structure of one embodiment of the present utility model;

[0023] Figure 5 This is an exploded view of the mounting plate in one embodiment of the present invention.

[0024] In the diagram: 1. Workbench; 2. Fixing frame; 3. Fixing frame; 4. Two-way screw; 5. Clamping plate; 6. Reinforcing rib; 7. Positioning hole; 8. Support plate; 9. Fixing plate; 10. First motor; 11. Support base; 12. Sleeve block; 13. Slide groove; 14. Cylinder; 15. Second motor; 16. Cold heading head; 17. Driven gear; 18. Drive gear; 19. Mounting plate; 20. Handrail; 21. Positioning block; 22. Spring; 23. Pull rod; 24. Fixing groove; 25. Fixing block; 26. Work box; 27. Box body. Detailed Implementation

[0025] 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.

[0026] 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."

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figures 1-5 As shown, it illustrates a positioning fixture for a multi-station cold heading machine according to an embodiment of the present invention, including a worktable 1, a slide groove 13 is provided inside the worktable 1, a sleeve block 12 is movably installed inside the slide groove 13, a bidirectional screw 4 is threaded inside the sleeve block 12, and both ends of the bidirectional screw 4 pass through the inside of the worktable 1, a fixing frame 3 is fixedly installed on the top of the sleeve block 12, an mounting plate 19 is movably installed inside the fixing frame 3, and a clamping plate 5 is fixedly installed on the inner side of the mounting plate 19;

[0032] A first motor 10 is fixedly installed on the right side of the workbench 1. A drive gear 18 is fixedly installed at the output end of the first motor 10 and is movably installed inside the workbench 1. A driven gear 17 is fixedly installed at one end of the bidirectional screw 4 and meshes with the drive gear 18. A cold heading mechanism is fixedly installed on the top of the workbench 1.

[0033] The operator starts the first motor 10 on the right side of the workbench 1. Its output end drives the drive gear 18 to rotate. The drive gear 18 drives the driven gear 17 at one end of the bidirectional screw 4 through meshing transmission, so that the bidirectional screw 4 rotates in an oriented manner within the workbench 1. Since the threads at both ends of the bidirectional screw 4 are opposite, the two sleeves 12 threaded onto it move symmetrically in opposite directions or in the opposite direction along the screw axis under the guidance of the slide groove 13. This causes the top fixed frame 3 and the inner mounting plate 19 to move synchronously. The clamping plate 5 on the inner side of the mounting plate 19 adjusts its spacing accordingly to accommodate bolt materials of different diameters. When the clamping plate 5 reaches the target position, the first motor 10 stops rotating, and the screw self-locks to maintain a stable position. At this time, the cold heading mechanism at the top of the workbench 1 can perform high-speed extrusion molding of the precisely positioned bolt material.

[0034] After starting the first motor 10 on the right side of the workbench 1, its output end drives the drive gear 18 to rotate, which in turn drives the driven gear 17 at one end of the bidirectional screw 4 through meshing transmission, causing the bidirectional screw 4 to rotate in a specific direction within the workbench 1. Since the threads at both ends of the bidirectional screw 4 are in opposite directions, the two threaded sleeves 12, guided by the linear guide of the slide groove 13, move symmetrically in opposite directions synchronously along the screw axis, thereby causing the top fixed frame 3 and the inner mounting plate 19 to move smoothly. The clamping plates 5 inside the mounting plate 19 adjust their spacing accordingly, allowing for flexible adaptation to bolt materials of different diameters. Once the clamping plate 5 precisely reaches the target position, the first motor 10 stops, and the screw self-locking mechanism immediately activates, ensuring a stable and unbiased clamping position. At this point, the cold heading mechanism on top of the worktable 1 can perform high-speed, high-precision extrusion molding of the positioned raw material. Compared with traditional positioning fixtures, this positioning fixture uses a gear transmission driven by the first motor 10 to rotate the bidirectional screw 4. Utilizing the opposite threads at both ends, the two sleeve blocks 12 move synchronously and symmetrically, enabling rapid and precise adjustment of the clamping plate 5 spacing. This significantly shortens the changeover time for bolts of different specifications, resulting in a substantial improvement in performance. It improves production efficiency and ensures stable and reliable operation. The slide 13 provides linear guidance for the sleeve block 12, avoiding movement deviation and jamming, ensuring the smooth displacement of the fixed frame 3 and the mounting plate 19, making the clamping plate 5 stable and durable during positioning. The screw self-locking mechanism takes effect immediately after the motor stops, preventing the clamping position from changing due to vibration or external force, ensuring accurate cold heading. In addition, it has strong adaptability and can flexibly handle bolt raw materials of various diameters to meet diverse production needs, enhance the equipment's versatility, reduce enterprise equipment costs, and effectively improve market competitiveness and economic benefits.

[0035] In some examples, a housing 27 is movably installed inside the fixed frame 3, and a positioning hole 7 is opened inside the mounting plate 19. A positioning block 21 is movably installed in the positioning hole 7. A pull rod 23 is fixedly installed at one end of the positioning block 21, and one end of the pull rod 23 passes through the inside of the housing 27. A spring 22 is fixedly installed between the housing 27 and the positioning block 21.

[0036] Before clamping and fixing the bolt material, the worker needs to install the clamping plate 5 inside the fixed frame 3. By holding the pull rod 23, the worker can move the positioning block 21 outside the fixed frame 3. The positioning block 21 compresses the spring 22 inside the housing 27, causing the positioning block 21 to pass through the inside of the fixed frame 3 and enter the inside of the housing 27. Then, by holding the handle 20, the worker slowly inserts the mounting plate 19 into the inside of the fixed frame 3. The mounting plate 19 drives the clamping plate 5 to move synchronously. When the mounting plate 19 is completely inside the fixed frame 3, the worker releases the pull rod 23, allowing the positioning block 21 to pass through the inside of the fixed frame 3 and enter the positioning hole 7. The positioning block 21 limits and fixes the mounting plate 19, thus completing the installation of the clamping plate 5.

[0037] When installing the bolt material clamping plate 5, the clamping plate 5 must first be pre-positioned in the fixed frame 3 to be installed. The operator holds the pull rod 23 and pulls it outward, causing the positioning block 21 to slide along the outside of the fixed frame 3, compressing the spring 22 inside the housing 27 until the positioning block 21 is completely retracted into the housing 27, making room for the insertion of the mounting plate 19. Then, holding the handle 20, the mounting plate 19 is slowly pushed into the fixed frame 3. At this time, the clamping plate 5 moves synchronously with the mounting plate 19 to the predetermined position. After the mounting plate 19 is fully embedded in the fixed frame 3, the pull rod 23 is released, and the spring 22 releases its elastic potential energy to push the positioning block 21 back to its original position, allowing it to pass through the side wall of the fixed frame 3 and the positioning hole 7 on the mounting plate 19 in sequence. The mechanical interlocking structure achieves axial and radial dual limiting of the mounting plate 19. At this point, the clamping plate 5 is securely installed and can proceed to the bolt material clamping process. Compared with traditional positioning fixtures, this... The positioning fixture allows for quick and precise installation and positioning of the clamping plate 5 by simply pulling and pushing it in, using the lever 23 and handle 20. This eliminates the need for complex tools and specialized skills, significantly reducing installation time and improving overall production efficiency. The core highlight of this design is its precise and stable positioning. Utilizing the elastic potential energy of the spring 22 and the mechanical interlocking structure, the positioning block 21 precisely passes through the positioning hole 7 after the mounting plate 19 is embedded in the fixing frame 3, achieving dual axial and radial limiting. This prevents loosening and offset of the clamping plate 5 during use, ensuring the accuracy of bolt material clamping and guaranteeing product quality. Furthermore, its flexible structure adapts to different specifications of clamping plates 5. Simply adjusting the dimensions of the mounting plate 19 and the positioning hole 7 can meet diverse production needs, enhancing equipment versatility, reducing enterprise production costs, and improving market competitiveness.

[0038] In some examples, the cold heading mechanism is fixedly mounted on the top of the workbench 1. The cold heading mechanism includes a fixed frame 2 fixedly mounted on the top of the workbench 1. A cylinder 14 is fixedly mounted on the inner side of the top of the fixed frame 2. A second motor 15 is fixedly mounted on the bottom of the cylinder 14. A cold heading head 16 is fixedly mounted on the output end of the second motor 15.

[0039] After the worker clamps and fixes the bolt at the top of the workbench 1, he opens the cylinder 14 and the second motor 15 by opening the clamping plate 5. The cylinder 14 slowly lowers the second motor 15 and the cold heading head 16. Then, the second motor 15 drives the cold heading head 16 to rotate, and the cold heading head 16 cold-heads the thread, thus completing the cold heading of the bolt.

[0040] In some examples, a support plate 8 is fixedly installed at the bottom of the workbench 1, and a fixing plate 9 is fixedly installed between the two support plates 8.

[0041] Since a fixing plate 9 is fixedly installed between the two support plates 8, the cooperation between the support plates 8 and the fixing plate 9 facilitates stable support for the workbench 1, ensuring the stability of the workbench 1 during use.

[0042] In some examples, a handrail 20 is fixedly mounted on the top of the mounting plate 19, and the outer surface of the handrail 20 is U-shaped.

[0043] Since the handrail 20 is in the form of a U-groove on the top of the mounting plate 19, and the U-shaped handrail 20 is ergonomic, it is convenient for the staff to hold the handrail 20 and slowly insert the mounting plate 19 into the interior of the fixed frame 3. The mounting plate 19 drives the clamping plate 5 to move synchronously, thereby completing the installation of the clamping plate 5.

[0044] In some examples, the workbench 1 has a fixing slot 24 inside, a fixing block 25 is movably installed inside the fixing slot 24, and a work box 26 is fixedly installed on the back of the fixing block 25.

[0045] By holding the work box 26, the fixing block 25 is slowly inserted into the fixing groove 24 through the work box 26. The fixing groove 24 limits and fixes the fixing block 25. By adding the work box 26, it is convenient for the staff to take out and place maintenance tools inside the work box 26.

[0046] In some examples, a support base 11 is fixedly installed on the right side of the workbench 1, and the interior of the support base 11 has a U-shaped groove.

[0047] Since the support base 11 has a U-shaped groove on the right side of the workbench 1, and the inside of the support base 11 is in contact with the outer surface of the first motor 10, it is convenient to provide stable support for the first motor 10 and reduce the shaking of the first motor 10 during use.

[0048] In some examples, a reinforcing rib 6 is fixedly installed at the corner of the clamping plate 5, and the reinforcing rib 6 is triangular in shape.

[0049] Because the reinforcing rib 6 is triangular in shape at the corner of the clamping plate 5, it provides stable support for the clamping plate 5, ensuring the stability of the clamping plate 5 during use and extending the service life of the clamping plate 5.

[0050] In some examples, the sleeve 12 and the fixed frame 3 are paired up, with two sets of movable installations inside the workbench 1.

[0051] Since the sleeve block 12 and the fixed frame 3 are paired up, there are two sets of movable installations inside the workbench 1. Through the cooperation between the sleeve block 12 and the fixed frame 3, it is easy to drive the clamping plate 5 to clamp and fix the bolts.

[0052] In some examples, the inner diameter of the fixing groove 24 is equal to the outer diameter of the fixing block 25, and the interior of the fixing groove 24 has a smooth surface design.

[0053] Since the inner diameter of the fixing groove 24 is equal to the outer diameter of the fixing block 25, and the inside of the fixing groove 24 has a smooth surface design, the fixing block 25 is slowly inserted into the inside of the fixing groove 24 by holding the work box 26 by hand, which ensures the installation efficiency of the work box 26.

[0054] Working principle and usage process of this utility model:

[0055] The operator starts the first motor 10 on the right side of the workbench 1. Its output end drives the drive gear 18 to rotate. The drive gear 18 drives the driven gear 17 at one end of the bidirectional screw 4 through meshing transmission, so that the bidirectional screw 4 rotates in an oriented manner within the workbench 1. Since the threads at both ends of the bidirectional screw 4 are opposite, the two sleeves 12 threaded onto it move symmetrically in opposite directions or in the opposite direction along the screw axis under the guidance of the slide groove 13. This causes the top fixed frame 3 and the inner mounting plate 19 to move synchronously. The clamping plate 5 on the inner side of the mounting plate 19 adjusts its spacing accordingly to accommodate bolt materials of different diameters. When the clamping plate 5 reaches the target position, the first motor 10 stops rotating, and the screw self-locks to maintain a stable position. At this time, the cold heading mechanism at the top of the workbench 1 can perform high-speed extrusion molding of the precisely positioned bolt material.

[0056] Before clamping and fixing the bolt material, the worker needs to install the clamping plate 5 inside the fixed frame 3. By holding the pull rod 23, the worker can move the positioning block 21 outside the fixed frame 3. The positioning block 21 compresses the spring 22 inside the housing 27, causing the positioning block 21 to pass through the inside of the fixed frame 3 and enter the inside of the housing 27. Then, by holding the handle 20, the worker slowly inserts the mounting plate 19 into the inside of the fixed frame 3. The mounting plate 19 drives the clamping plate 5 to move synchronously. When the mounting plate 19 is completely inside the fixed frame 3, the worker releases the pull rod 23, allowing the positioning block 21 to pass through the inside of the fixed frame 3 and enter the positioning hole 7. The positioning block 21 limits and fixes the mounting plate 19, thus completing the installation of the clamping plate 5.

[0057] 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.

[0058] 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.

[0059] 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 positioning fixture for a multi-station cold heading machine, comprising a worktable (1), characterized in that: The workbench (1) has a sliding groove (13) inside, and a sleeve block (12) is movably installed inside the sliding groove (13). A double-ended screw (4) is threaded inside the sleeve block (12), and both ends of the double-ended screw (4) pass through the inside of the workbench (1). A fixing frame (3) is fixedly installed on the top of the sleeve block (12), and an installation plate (19) is movably installed inside the fixing frame (3). A clamping plate (5) is fixedly installed on the inner side of the installation plate (19). A first motor (10) is fixedly installed on the right side of the workbench (1). A drive gear (18) is fixedly installed at the output end of the first motor (10), and the drive gear (18) is movably installed inside the workbench (1). A driven gear (17) is fixedly installed at one end of the bidirectional screw (4), and the driven gear (17) meshes with the drive gear (18). A cold forging mechanism is fixedly installed on the top of the workbench (1).

2. The positioning fixture for a multi-station cold heading machine according to claim 1, characterized in that: The fixed frame (3) has a housing (27) installed inside. The mounting plate (19) drives the opening of a positioning hole (7) inside. A positioning block (21) is installed in the positioning hole (7). A pull rod (23) is fixedly installed at one end of the positioning block (21), and one end of the pull rod (23) passes through the inside of the housing (27). A spring (22) is fixedly installed between the housing (27) and the positioning block (21).

3. A positioning fixture for a multi-station cold heading machine according to claim 1, characterized in that: The cold heading mechanism is fixedly installed on the top of the workbench (1). The cold heading mechanism includes a fixed frame (2) fixedly installed on the top of the workbench (1). A cylinder (14) is fixedly installed on the inner side of the top of the fixed frame (2). A second motor (15) is fixedly installed at the bottom of the cylinder (14). A cold heading head (16) is fixedly installed at the output end of the second motor (15).

4. A positioning fixture for a multi-station cold heading machine according to claim 1, characterized in that: A support plate (8) is fixedly installed at the bottom of the workbench (1), and a fixing plate (9) is fixedly installed between the two support plates (8).

5. A positioning fixture for a multi-station cold heading machine according to claim 3, characterized in that: The top of the mounting plate (19) is fixedly fitted with a handrail (20), and the outer surface of the handrail (20) is U-shaped.

6. A positioning fixture for a multi-station cold heading machine according to claim 1, characterized in that: The workbench (1) has a fixed groove (24) inside, and a fixed block (25) is movably installed inside the fixed groove (24). A work box (26) is fixedly installed on the back of the fixed block (25).

7. A positioning fixture for a multi-station cold heading machine according to claim 1, characterized in that: A support base (11) is fixedly installed on the right side of the workbench (1), and the inside of the support base (11) has a U-shaped groove.

8. A positioning fixture for a multi-station cold heading machine according to claim 3, characterized in that: A reinforcing rib (6) is fixedly installed at the included angle of the clamping plate (5), and the reinforcing rib (6) is triangular in shape.

9. A positioning fixture for a multi-station cold heading machine according to claim 1, characterized in that: The sleeve (12) and the fixed frame (3) are paired up, and two sets are movably installed inside the workbench (1).

10. A positioning fixture for a multi-station cold heading machine according to claim 6, characterized in that: The inner diameter of the fixing groove (24) is equal to the outer diameter of the fixing block (25), and the interior of the fixing groove (24) has a smooth surface design.

Images