Easily removable cold heading die

Abstract

The utility model provides an easy disassembly type cold upsetting die. Including support, install the support on the support board, install the support board on the pneumatic cylinder, the output of pneumatic cylinder is connected with the punch head through quick -detach mechanism, be provided with the mounting panel in the support, install the locating rod below the mounting panel, be provided with the locating groove below the support, be provided with the limiting slot in the mounting panel. In the utility model, through for punch head and die holder respectively configure quick -detach mechanism, realized the modularization design of die, this design not only can according to production demand quick replacement different specifications die holder and punch head, efficient promotion production transformation response speed, also effectively improved the flexibility and adaptability of device, in addition, this kind of structure design makes the replacement operation simple and easy to operate, need not help special tool, fundamentally shortens the downtime of die replacement, effectively improves the overall efficiency of cold upsetting production.

Description

Technical Field

[0001] This utility model relates to cold heading equipment, and in particular to an easily detachable cold heading mold, belonging to the field of metal forming technology. Background Technology

[0002] Cold heading is a machining method that applies pressure to a metal billet at room temperature, causing it to undergo plastic deformation to obtain parts with the desired shape, size, and performance. Cold heading dies apply precisely controlled pressure to metal wires or bars placed inside, guiding the metal to flow and deform according to a predetermined shape.

[0003] Publication number CN222242452U discloses a cold heading mold for threaded caps. The mold includes a lower mold and an upper mold. Electric telescopic connecting rods are embedded and connected to the corners of the upper surface of the upper mold, and the corners of the lower surface of the upper mold are detachably connected to the telescopic ends of the electric telescopic connecting rods. A fixing hole is formed at the center of the upper surface of the lower mold, and threaded holes are formed on both sides of the inner cavity of the fixing hole, with the threaded holes extending transversely through the fixing hole. This cold heading mold can fix threaded caps of different sizes to a certain extent, and can be used in conjunction with thread rolling dies to process threaded caps of different sizes. This solves the problem that existing molds can only be adapted one-to-one. Producing different threaded caps does not require adding too many cold heading molds, effectively reducing production costs and improving production efficiency.

[0004] However, this type of cold heading die lacks a quick-release mechanism during actual operation. Disassembling the upper die requires unscrewing each bolt connected to the telescopic rod, a time-consuming and labor-intensive process. It also prevents rapid replacement of dies with different specifications to meet production needs, resulting in slow production transition response and severely impacting production efficiency. Furthermore, the device lacks a lower die disassembly mechanism, exhibiting extremely poor adaptability and flexibility, making it difficult to handle multi-variety production scenarios. Simultaneously, the metal deformation during cold heading generates a large amount of heat, which accumulates over time, causing the upper and lower dies to continuously rise in temperature. This high temperature can easily trigger equipment shutdown, further restricting continuous production capacity and necessitating improvements.

[0005] Therefore, an easily detachable cold heading die is proposed. Utility Model Content

[0006] In view of this, the present invention provides an easily detachable cold heading die to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0007] The technical solution of this utility model is implemented as follows: an easily detachable cold heading mold includes a support, a support plate mounted on the support, a cylinder mounted on the support plate, the output end of the cylinder being connected to a punch head via a quick-release mechanism, an mounting plate disposed within the support, a positioning rod mounted below the mounting plate, a positioning groove disposed below the support, a limit groove disposed within the mounting plate, a sliding plate slidably mounted within the limit groove, a magnetic plate disposed within the sliding plate, a guide groove disposed within the support, an inclined clamping plate slidably mounted within the guide groove, an electromagnet disposed within the inclined clamping plate, a connecting rod disposed on the side of the inclined clamping plate, a spring sleeved on the connecting rod, a slot disposed within the support, and a mold base mounted above the mounting plate.

[0008] More preferably, the magnetic plate and the electromagnet in the energized state are attracted by a magnetic field, and the slot is adapted to the sliding plate.

[0009] More preferably, the connecting rod is slidably installed inside the support, and a handle is installed at one end of the connecting rod that passes through the support.

[0010] More preferably, one end of the spring is installed in the guide groove, and the other end of the spring is installed on the side of the inclined plate, and the spring drives the inclined plate to have a tendency to push against the slide plate.

[0011] More preferably, the quick-release mechanism includes a connecting shaft, a threaded sleeve, a dovetail groove, and a dovetail block. The connecting shaft is installed at the output end of the cylinder, the threaded sleeve is threadedly connected to the connecting shaft, the dovetail groove is located below the connecting shaft, and the dovetail block is installed above the stamping head. The dovetail block is adapted to the dovetail groove.

[0012] More preferably, the mold base has a cavity filled with a heat-conducting material, a heat-absorbing pipe is provided inside the mold base, one end of the heat-absorbing pipe is connected to a water inlet pipe, the other end of the heat-absorbing pipe is connected to a water outlet pipe, a ball valve is provided on both the water inlet pipe and the water outlet pipe, and a pipe connector is provided on both the water inlet pipe and the water outlet pipe.

[0013] More preferably, the thermally conductive material is made of copper powder and carbon fiber, and the heat-absorbing tube is disposed in the internal cavity of the mold base.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] I. In this utility model, by configuring quick disassembly and assembly mechanisms for the stamping head and the die base respectively, the modular design of the die is realized. This design not only enables the quick replacement of die bases and stamping heads of different specifications according to production needs, thus efficiently improving the response speed of production transformation, but also effectively improves the flexibility and adaptability of the device. In addition, this structural design makes the replacement operation simple and easy, without the need for special tools, fundamentally shortening the downtime of die replacement and effectively improving the overall efficiency of cold heading production.

[0016] II. In this utility model, by opening a cavity in the mold base, filling it with heat-conducting material and arranging heat-absorbing pipes, and cooperating with an external water pump to form a circulating water path, cold water enters the heat-absorbing pipe through the inlet pipe to absorb heat and is discharged from the outlet pipe. It efficiently absorbs the high heat generated by metal deformation during cold heading, which can control the temperature of the mold base within a reasonable range, extend the mold life, reduce downtime caused by high temperature, improve continuous operation capability, and has high practicality.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the quick-release mechanism in this utility model;

[0021] Figure 3 This is an exploded structural diagram of the skateboard in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the support in this utility model;

[0023] Figure 5 This is an exploded view of the internal structure of the mold base in this utility model.

[0024] Reference numerals: 1. Support; 2. Support plate; 3. Cylinder; 4. Punch head; 5. Mounting plate; 6. Positioning rod; 7. Positioning groove; 8. Limiting groove; 9. Slide plate; 10. Magnetic plate; 11. Guide groove; 12. Inclined clamping plate; 13. Electromagnet; 14. Connecting rod; 15. Spring; 16. Slot; 17. Connecting shaft; 18. Threaded sleeve; 19. Dovetail groove; 20. Dovetail block; 21. Mold base; 22. Thermally conductive material; 23. Heat absorption pipe; 24. Water inlet pipe; 25. Water outlet pipe; 26. Ball valve; 27. Connecting seat. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, this utility model embodiment provides an easily detachable cold heading mold, including a support 1, a support plate 2 mounted on the support 1, a cylinder 3 mounted on the support plate 2, the output end of the cylinder 3 being connected to a punch head 4 via a quick-release mechanism, an mounting plate 5 disposed inside the support 1, a positioning rod 6 mounted below the mounting plate 5, a positioning groove 7 disposed below the support 1, a limit groove 8 disposed inside the mounting plate 5, a sliding plate 9 slidably mounted inside the limit groove 8, a magnetic plate 10 disposed inside the sliding plate 9, a guide groove 11 disposed inside the support 1, an inclined clamping plate 12 slidably mounted inside the guide groove 11, an electromagnet 13 disposed inside the inclined clamping plate 12, a connecting rod 14 disposed on the side of the inclined clamping plate 12, a spring 15 sleeved on the connecting rod 14, a slot 16 disposed inside the support 1, and a mold base 21 mounted above the mounting plate 5.

[0028] In one embodiment, the magnetic plate 10 and the electromagnet 13 in the energized state are attracted by a magnetic field, and the slot 16 is adapted to the slide plate 9. When the power to the electromagnet 13 is turned on, the electromagnet 13 and the magnetic plate 10 are attracted by a magnetic field, thereby driving the slide plate 9 to slide synchronously during the sliding of the inclined slot plate 12.

[0029] In one embodiment, the connecting rod 14 is slidably installed inside the support 1, and a handle is installed at one end of the connecting rod 14 that passes through the support 1. Pulling the connecting rod 14 causes the inclined plate 12 to compress the spring 15 and retract along the guide groove 11.

[0030] In one embodiment, one end of the spring 15 is installed in the guide groove 11, and the other end of the spring 15 is installed on the side of the inclined plate 12. The spring 15 drives the inclined plate 12 to tend to push against the slide plate 9. When the slide plate 9 and the inclined plate 12 are horizontally aligned, the spring 15 pushes the inclined plate 12 to move along the guide groove 11 toward the slide plate 9.

[0031] In one embodiment, the quick-release mechanism includes a connecting shaft 17, a threaded sleeve 18, a dovetail groove 19, and a dovetail block 20. The connecting shaft 17 is installed at the output end of the cylinder 3, the threaded sleeve 18 is threadedly connected to the connecting shaft 17, the dovetail groove 19 is located below the connecting shaft 17, and the dovetail block 20 is installed above the stamping head 4, with the dovetail block 20 fitting into the dovetail groove 19. During operation, this quick-release structure allows for rapid replacement of the stamping head 4 according to the blank specifications without the need for special tools, significantly reducing replacement time and improving operational continuity.

[0032] In one embodiment, the mold base 21 has a cavity filled with a thermally conductive material 22. A heat-absorbing pipe 23 is installed inside the mold base 21. One end of the heat-absorbing pipe 23 is connected to a water inlet pipe 24, and the other end is connected to a water outlet pipe 25. Ball valves 26 and pipe connection seats 27 are installed on both the water inlet pipe 24 and the water outlet pipe 25. An external water pump delivers cold water to the heat-absorbing pipe 23 through the water inlet pipe 24. The water, after absorbing heat, is discharged from the water outlet pipe 25. The ball valve 26 controls the water flow rate to ensure a stable temperature for the mold base 21.

[0033] In one embodiment, the thermally conductive material 22 is made of copper powder and carbon fiber, and the heat-absorbing tube 23 is disposed in the internal cavity of the mold base 21. During the cold heading process, the heat generated by the metal deformation is rapidly conducted to the heat-absorbing tube 23 through the copper powder and carbon fiber thermally conductive material 22 in the mold base 21.

[0034] In operation, this invention works as follows: When installing the punch head 4, the dovetail block 20 on the punch head 4 is aligned with the dovetail groove 19 below the connecting shaft 17 and inserted. Then, the threaded sleeve 18 is rotated, and under the action of the thread, the threaded sleeve 18 will move downward and abut against the outside of the dovetail block 20, thereby completing the fixation of the punch head 4 to the output end of the cylinder 3. When disassembling, the threaded sleeve 18 is rotated in the opposite direction to disengage it from the dovetail block 20. Then, the dovetail block 20 can be directly pulled out along the dovetail groove 19 to remove the punch head 4 for cold heading. During operation, cylinder 3 starts, driving the stamping head 4 to move downwards, applying pressure to the metal blank on the die holder 21 to complete the cold heading. When installing the die holder 21, the positioning rod 6 below the mounting plate 5 is aligned with the positioning groove 7 of the support 1 and inserted. During this process, the mounting plate 5 pushes the inclined clamping plate 12 and, under the action of the inclined surface and pressure, drives the inclined clamping plate 12 to retract along the guide groove 11. When the sliding plate 9 and the inclined clamping plate 12 are horizontally aligned, the spring 15 pushes the inclined clamping plate 12 along the guide groove 11. The groove 11 moves towards the slide plate 9, which then slides along the limiting groove 8 and engages with the slot 16, thus fixing the mounting plate 5 and the mold base 21. During cold heading, the heat generated by the metal deformation is quickly conducted to the heat absorption pipe 23 through the copper powder and carbon fiber thermal conductive material 22 inside the mold base 21. An external water pump sends cold water into the heat absorption pipe 23 through the inlet pipe 24. The water that has absorbed heat is discharged from the outlet pipe 25. The ball valve 26 can control the water flow rate to ensure that the temperature of the mold base 21 is stable. When disassembling the mold base 21, the connecting rod 14 is pulled to drive the inclined plate 12 to compress the spring 15 and move backward along the guide groove 11. At the same time, the power of the electromagnet 13 is turned on, so that the electromagnet 13 and the magnetic plate 10 are attracted by the magnetic field. Thus, the slide plate 9 can be driven to slide synchronously during the sliding of the inclined plate 12 until the slide plate 9 is disengaged from the slot 16. Then, the mold base 21 is pulled upward to remove the mounting plate 5 and the mold base 21. The operation is convenient and the fixation is firm, ensuring the operation accuracy and mold life.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An easily detachable cold heading die, characterized in that: The system includes a support (1), a support plate (2) mounted on the support (1), a cylinder (3) mounted on the support plate (2), and a punch head (4) connected to the output end of the cylinder (3) via a quick-release mechanism. A mounting plate (5) is provided inside the support (1), a positioning rod (6) is mounted below the mounting plate (5), a positioning groove (7) is provided below the support (1), a limit groove (8) is provided inside the mounting plate (5), and a sliding plate (9) is slidably mounted inside the limit groove (8). The slide plate (9) is provided with a magnetic plate (10), the support (1) is provided with a guide groove (11), the guide groove (11) is slidably installed with an inclined plate (12), the inclined plate (12) is provided with an electromagnet (13), the inclined plate (12) is installed with a connecting rod (14) on the side, the connecting rod (14) is fitted with a spring (15), the support (1) is provided with a slot (16), and the mounting plate (5) is installed with a mold base (21).

2. The easily detachable cold heading die according to claim 1, characterized in that: The magnetic plate (10) and the electromagnet (13) in the energized state are attracted by a magnetic field, and the slot (16) is adapted to the slide plate (9).

3. The easily detachable cold heading die according to claim 1, characterized in that: The connecting rod (14) is slidably installed in the support (1), and a handle is installed at one end of the connecting rod (14) that passes through the support (1).

4. The easily detachable cold heading die according to claim 1, characterized in that: One end of the spring (15) is installed in the guide groove (11), and the other end of the spring (15) is installed on the side of the inclined plate (12). The spring (15) drives the inclined plate (12) to tend to push against the slide plate (9).

5. The easily detachable cold heading die according to claim 1, characterized in that: The quick-release mechanism includes a connecting shaft (17), a threaded sleeve (18), a dovetail groove (19), and a dovetail block (20). The connecting shaft (17) is installed at the output end of the cylinder (3). The threaded sleeve (18) is threaded onto the connecting shaft (17). The dovetail groove (19) is located below the connecting shaft (17). The dovetail block (20) is installed above the stamping head (4). The dovetail block (20) is adapted to the dovetail groove (19).

6. The easily detachable cold heading die according to claim 1, characterized in that: The mold base (21) has a cavity inside and is filled with a heat-conducting material (22). A heat-absorbing pipe (23) is provided inside the mold base (21). One end of the heat-absorbing pipe (23) is connected to a water inlet pipe (24), and the other end of the heat-absorbing pipe (23) is connected to a water outlet pipe (25). A ball valve (26) is provided on both the water inlet pipe (24) and the water outlet pipe (25). A pipe connection seat (27) is provided on both the water inlet pipe (24) and the water outlet pipe (25).

7. The easily detachable cold heading die according to claim 6, characterized in that: The thermally conductive material (22) is made of copper powder and carbon fiber, and the heat-absorbing tube (23) is disposed in the internal cavity of the mold base (21).

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