Multi-station cold header for nut machining

Abstract

The utility model discloses a nut machining multi-station cold header which comprises a base, supporting frames are arranged on the upper end face of the base and located on the two sides, a top plate is arranged on the upper end faces of the supporting frames, a hydraulic cylinder is arranged on the upper end face of the top plate, a mounting sleeve is arranged at the output end of the hydraulic cylinder, a mounting rod is movably arranged in the mounting sleeve, and a nut is arranged on the mounting rod. A cold heading head is arranged at the bottom of the mounting rod, locking holes are correspondingly formed in the outer wall of the mounting rod and the outer wall of the mounting sleeve, locking pins are slidably arranged in the locking holes, and avoiding grooves are formed in the positions, located on the outer wall of the mounting sleeve, of the outer ends of the locking holes. And therefore, a user can separate the locking sleeve from the locking pin and the pull block by rotating the locking sleeve, and at the moment, the locking pin can be taken out from the interior of the locking hole through the pull block, so that the mounting rod and the mounting sleeve are detached, and the cold heading head is convenient to replace.

Description

Technical Field

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

[0002] A nut is a fastener that is screwed onto a bolt or threaded rod to secure a fastener; it is an essential component in all manufacturing machinery. Based on the material, nuts are classified into several types, including carbon steel, stainless steel, and non-ferrous metals (such as copper). A cold heading machine is a specialized piece of equipment used for cold heading nuts. Cold heading is a processing method that uses room temperature to plastically deform metal materials, increasing their density and strength while reducing material waste.

[0003] During the use of cold heading machines, the cold heading head wears out quite severely, so it needs to be replaced frequently. However, most existing cold heading heads are fixed with bolts during installation, which requires tools to disassemble later, affecting disassembly efficiency.

[0004] Furthermore, it is inconvenient to remove the processed nuts from the inside of the workstation. The formed nuts need to be manually removed from the stamping die, which is quite inconvenient and makes it impossible to carry out cold heading continuously. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a multi-station cold heading machine for nut processing, which solves the technical problem mentioned in the background art that existing cold heading heads are mostly fixed with bolts during installation, which requires tools to be used for subsequent disassembly, thus affecting disassembly efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-station cold heading machine for nut processing, comprising a base, with support frames on both sides of the upper end face of the base, a top plate on the upper end face of the support frames, a hydraulic cylinder on the upper end face of the top plate, an installation sleeve at the output end of the hydraulic cylinder, an installation rod movably mounted inside the installation sleeve, a cold heading head at the bottom of the installation rod, and locking holes correspondingly opened on the outer wall of both the installation rod and the installation sleeve, with a lock slidably mounted inside each locking hole. The locking pin has an outer end of the locking hole and an avoidance groove on the outer wall of the mounting sleeve. One end of the locking pin and inside the avoidance groove has a pull block. The outer wall of the mounting sleeve has an external thread. The outer side of the mounting sleeve has a locking sleeve. The locking sleeve is threaded to the mounting sleeve through the external thread. The inner wall of the locking sleeve contacts one end of the locking pin and the pull block. The upper end of the base has a processing table. The upper surface of the processing table has multiple workstation holes, all of which are located below the cold heading head.

[0009] The present invention is further configured such that a placement plate is fixedly provided on the inner wall of the workstation hole, a guide cylinder is slidably provided at the middle position of the placement plate, the upper end of the guide cylinder passes through the placement plate and is provided with a top block, the top block is located inside the workstation hole, and a guide post is correspondingly provided on the inner wall of the workstation hole at the bottom, the guide post is slidably installed with the guide cylinder, and the upper end of the guide post is provided with a first spring, the other end of the first spring is fixedly connected to the inner wall of the guide cylinder, so as to facilitate the ejection of the processed nut and facilitate material removal.

[0010] The present invention is further configured such that a pin is movably provided on the outer wall of the processing table, and multiple pins are provided, with one end of each pin extending into the interior of the workstation hole. A slot is correspondingly provided on the outer wall of the top block, and one end of each pin is located inside the slot, which facilitates fixing the top block.

[0011] The present invention is further configured such that a limiting block is provided at the other end of each pin, and a second spring is fixedly provided between the limiting block and the processing table to facilitate one end of the pin entering the slot.

[0012] The present invention is further configured such that a motor is provided on the upper surface of the base, and the output end of the motor is connected to the bottom of the processing table to facilitate the rotation of the processing table.

[0013] The present invention is further configured such that a support ring is provided on the upper end surface of the base, and a support roller is provided on the lower end surface of the processing table. Multiple support rollers are provided and all of them are in contact with the upper end surface of the support ring, so as to facilitate the support of the bottom of the processing table.

[0014] The present invention is further configured such that positioning blocks are provided on the outer wall of the mounting rod on both sides, and positioning grooves are correspondingly provided on the inner wall of the mounting sleeve, with the positioning blocks located inside the positioning grooves, which facilitates the positioning and installation of the mounting rod.

[0015] The present invention is further provided that the outer wall of the locking sleeve is provided with external threads, which facilitates the disassembly of the locking sleeve.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a multi-station cold heading machine for nut processing, which has the following beneficial effects:

[0018] 1. By setting up an installation sleeve, installation rod, and locking pin, the user can rotate the locking sleeve to disengage it from the locking pin and pull block. At this time, the locking pin can be removed from the inside of the locking hole by pulling the pull block, so as to separate the installation rod and installation sleeve, which facilitates the replacement of the cold heading head. This design increases the convenience and flexibility of the device when replacing the cold heading head, reduces the replacement time of the cold heading head, and helps to increase the processing efficiency of the device.

[0019] 2. By setting up a placement plate, guide cylinder, guide post and first spring, when it is necessary to remove the nut inside the workstation hole, the limit block can be pulled to disengage one end of the pin from the slot. At this time, the first spring will extend to move the top block upward, thereby pushing the nut inside the workstation hole out for quick material removal.

[0020] 3. By setting up a motor, support ring, and support roller, the user can control the motor to rotate the processing table, thereby changing the position hole and facilitating the simultaneous processing of multiple nuts. Furthermore, the support ring and support roller provide support to the bottom of the processing table, preventing the cold heading head from causing excessive impact on the processing table and motor when processing nuts inside the position hole, thus extending the service life of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a multi-station cold heading machine for nut processing in its unused state.

[0022] Figure 2 This is a schematic diagram showing the installation positions of the motor and support ring on the base;

[0023] Figure 3 Exploded view of the installation of the mounting sleeve, mounting rod, cold heading head, locking pin, and locking sleeve on the hydraulic cylinder;

[0024] Figure 4 A sectional view showing the installation of the top block, guide cylinder, guide post, and first spring on the machining table;

[0025] Figure 5 for Figure 4 A partial schematic diagram of region A in the middle;

[0026] Figure 6 Exploded view of the installation of the top block and the pin.

[0027] In the diagram: 1. Base; 2. Support frame; 3. Top plate; 4. Hydraulic cylinder; 5. Mounting sleeve; 6. Mounting rod; 7. Cold heading head; 8. Locking hole; 9. Locking pin; 10. Avoidance groove; 11. Pull block; 12. Locking sleeve; 13. Machining table; 14. Station hole; 15. Placement plate; 16. Guide cylinder; 17. Top block; 18. Guide column; 19. First spring; 20. Pin; 21. Slot; 22. Limiting block; 23. Second spring; 24. Motor; 25. Support ring; 26. Support roller; 27. Positioning block; 28. Positioning groove. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-6A multi-station cold heading machine for nut processing includes a base 1. Support frames 2 are provided on the upper surface and both sides of the base 1. A top plate 3 is provided on the upper surface of the support frame 2. A hydraulic cylinder 4 is provided on the upper surface of the top plate 3. An mounting sleeve 5 is provided at the output end of the hydraulic cylinder 4. An mounting rod 6 is movably mounted inside the mounting sleeve 5. A cold heading head 7 is provided at the bottom of the mounting rod 6. Locking holes 8 are correspondingly provided on the outer wall of both the mounting rod 6 and the mounting sleeve 5. Locking pins 9 are slidably mounted inside the locking holes 8. A locking pin is provided at the outer end of the locking hole 8 on the outer wall of the mounting sleeve 5. The avoidance groove 10 has a pull block 11 at one end of the locking pin 9 inside the avoidance groove 10. The outer wall of the mounting sleeve 5 is provided with external threads. The outer side of the mounting sleeve 5 is provided with a locking sleeve 12. The locking sleeve 12 is threadedly connected to the mounting sleeve 5 through external threads. The inner wall of the locking sleeve 12 is in contact with one end of the locking pin 9 and the pull block 11. The upper end of the base 1 is provided with a processing table 13. The upper end face of the processing table 13 is provided with a work station hole 14. Multiple work station holes 14 are provided, and all of them can be located below the cold heading head 7. The outer wall of the locking sleeve 12 is provided with external threads.

[0032] In this embodiment, a placement plate 15 is fixedly provided on the inner wall of the workstation hole 14. A guide cylinder 16 is slidably provided at the middle position of the placement plate 15. The upper end of the guide cylinder 16 passes through the placement plate 15 and is provided with a top block 17. The top block 17 is located inside the workstation hole 14. A guide post 18 is correspondingly provided on the inner wall of the workstation hole 14 at the bottom. The guide posts 18 are all slidably installed with the guide cylinder 16. The upper end of each guide post 18 is provided with a first spring 19. The other end of each first spring 19 is fixedly connected to the inner wall of the guide cylinder 16. A pin 20 is movably provided on the outer wall of the processing table 13. Multiple pins 20 are provided, and one end of each pin extends into the interior of the workstation hole 14. A slot 21 is correspondingly opened on the outer wall of each top block 17. One end of each pin 20 is located inside the slot 21. The other end of each pin 20 is provided with a limiting block 22. A second spring 23 is fixedly provided between the limiting block 22 and the processing table 13.

[0033] More specifically, the user can rotate the locking sleeve 12 to disengage it from the locking pin 9 and the pull block 11. At this time, the locking pin 9 can be removed from the inside of the locking hole 8 by pulling the pull block 11, so as to separate the mounting rod 6 and the mounting sleeve 5, making it convenient to replace the cold heading head 7. When it is necessary to remove the nut inside the work station hole 14, the limit block 22 can be pulled to disengage one end of the pin 20 from the slot 21. At this time, the first spring 19 will extend to move the top block 17 upward, thereby pushing out the nut inside the work station hole 14 for quick material removal.

[0034] Please see Figure 1 and Figure 2As an implementation method for processing multiple nuts: a motor 24 is provided on the upper end face of the base 1, the output end of the motor 24 is connected to the bottom of the processing table 13, a support ring 25 is provided on the upper end face of the base 1, and a support roller 26 is provided on the lower end face of the processing table 13. Multiple support rollers 26 are provided and all of them are in contact with the upper end face of the support ring 25.

[0035] Specifically, the user can control the motor 24 to rotate the processing table 13 to achieve the effect of changing the work station hole 14, which facilitates the simultaneous processing of multiple nuts. Furthermore, by setting the support ring 25 and support roller 26, the bottom of the processing table 13 can be supported to prevent the cold heading head 7 from causing a large impact force on the processing table 13 and the motor 24 when processing the nuts inside the work station hole 14, thereby extending the service life of the device.

[0036] Please refer to Figure 3 As a further embodiment for positioning and installing the mounting rod 6: positioning blocks 27 are provided on the outer wall of the mounting rod 6 on both sides, and positioning grooves 28 are correspondingly provided on the inner wall of the mounting sleeve 5, with the positioning blocks 27 located inside the positioning grooves 28.

[0037] Specifically, the mounting rod 6 can be positioned and installed to prevent relative rotation between it and the mounting sleeve 5, which would affect the normal use of the device.

[0038] In summary, when using the overall equipment: when it is necessary to disassemble the cold heading head 7, the locking sleeve 12 can be rotated to disengage it from the locking pin 9 and the pull block 11. At this time, the locking pin 9 can be removed from the inside of the locking hole 8 by pulling the pull block 11, so that the mounting rod 6 and the mounting sleeve 5 can be separated, making it convenient to replace the cold heading head 7. When it is necessary to remove the nut inside the work station hole 14, the limit block 22 can be pulled to disengage one end of the pin 20 from the slot 21. At this time, the first spring 19 will extend to move the top block 17 upward. The cold heading head 7 moves, thereby pushing out the nut inside the workstation hole 14 for quick material removal. During processing, the user can also control the motor 24 to rotate the processing table 13 to change the workstation hole 14, facilitating the simultaneous processing of multiple nuts. Furthermore, by setting the support ring 25 and support roller 26, the bottom of the processing table 13 can be supported to prevent the cold heading head 7 from causing a large impact on the processing table 13 and motor 24 when processing the nut inside the workstation hole 14, thereby extending the service life of the device.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station cold heading machine for nut processing, comprising a base (1), characterized in that: The base (1) has support frames (2) on its upper surface and on both sides. The support frame (2) has a top plate (3) on its upper surface. The top plate (3) has a hydraulic cylinder (4) on its upper surface. The output end of the hydraulic cylinder (4) has a mounting sleeve (5). The mounting sleeve (5) has a movable mounting rod (6) inside. The bottom of the mounting rod (6) has a cold heading head (7). The mounting rod (6) and the outer wall of the mounting sleeve (5) are respectively provided with locking holes (8). The locking holes (8) are slidably provided with locking pins (9) inside. The outer end of the locking hole (8) and the outer wall of the mounting sleeve (5) are provided with a locking pin. The avoidance groove (10) has a pull block (11) at one end of the locking pin (9) and inside the avoidance groove (10). The outer wall of the mounting sleeve (5) is provided with an external thread. The outer side of the mounting sleeve (5) is provided with a locking sleeve (12). The locking sleeve (12) is threadedly connected to the mounting sleeve (5) through the external thread. The inner wall of the locking sleeve (12) is in contact with one end of the locking pin (9) and the pull block (11). The upper end of the base (1) is provided with a processing table (13). The upper surface of the processing table (13) is provided with a work station hole (14). There are multiple work station holes (14), and each of them can be located below the cold heading head (7).

2. The multi-station cold heading machine for nut processing according to claim 1, characterized in that: A placement plate (15) is fixedly provided on the inner wall of the work station hole (14). A guide cylinder (16) is slidably provided in the middle position of the placement plate (15). The upper end of the guide cylinder (16) passes through the placement plate (15) and is provided with a top block (17). The top block (17) is located inside the work station hole (14). A guide post (18) is provided on the inner wall of the work station hole (14) and at the bottom. The guide posts (18) are all slidably installed with the guide cylinder (16). The upper end of each guide post (18) is provided with a first spring (19). The other end of each first spring (19) is fixedly connected to the inner wall of the guide cylinder (16).

3. A multi-station cold heading machine for nut processing according to claim 2, characterized in that: The outer wall of the processing table (13) is provided with a pin (20), and there are multiple pins (20) with one end extending into the interior of the work station hole (14). The outer wall of the top block (17) is provided with a corresponding slot (21), and one end of the pin (20) is located inside the slot (21).

4. A multi-station cold heading machine for nut processing according to claim 3, characterized in that: Each of the pins (20) is provided with a limiting block (22) at the other end, and a second spring (23) is fixed between the limiting block (22) and the processing table (13).

5. A multi-station cold heading machine for nut processing according to claim 1, characterized in that: The upper surface of the base (1) is provided with a motor (24), and the output end of the motor (24) is connected to the bottom of the processing table (13).

6. A multi-station cold heading machine for nut processing according to claim 5, characterized in that: The upper end face of the base (1) is provided with a support ring (25), and the lower end face of the processing table (13) is provided with a support roller (26). Multiple support rollers (26) are provided and all of them are in contact with the upper end face of the support ring (25).

7. A multi-station cold heading machine for nut processing according to claim 1, characterized in that: Positioning blocks (27) are provided on the outer wall of the mounting rod (6) and on both sides. Positioning grooves (28) are correspondingly provided on the inner wall of the mounting sleeve (5). The positioning blocks (27) are located inside the positioning grooves (28).

8. A multi-station cold heading machine for nut processing according to claim 1, characterized in that: The outer wall of the locking sleeve (12) is provided with external threads.

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