An automotive stamping die with a positioning mechanism

Abstract

This utility model relates to the field of automotive stamping die technology, and more particularly to an automotive stamping die with a positioning mechanism. It includes a base, a positioning seat mounted at the upper center of the base, a die platform inserted inside the positioning seat, a die groove at the upper end of the die platform, and ejector pins distributed along both sides of the die groove. This design employs a separate structure for the positioning seat and the die platform. The die platform is quickly fixed using threaded posts, collars, and threaded caps, facilitating disassembly and replacement. The die groove and stamping head are non-standard customized, allowing for flexible design according to different product requirements, while the die platform uses a uniform specification to ensure compatibility with the positioning seat. This modular design not only improves production efficiency but also reduces die maintenance costs. The cooperation between the ejector pins and springs further simplifies material handling operations, and the formed part is automatically ejected after stamping, reducing manual intervention and improving operational convenience.

Description

Technical Field

[0001] This utility model relates to the field of automotive stamping die technology, and in particular to an automotive stamping die with a positioning mechanism. Background Technology

[0002] Automotive stamping dies with positioning mechanisms are key pieces of equipment used in the automobile manufacturing process. The main function of these dies is to precisely position and fix the metal sheet during stamping to ensure that the stamped parts meet design requirements.

[0003] The positioning mechanism is an important component of automotive stamping dies. Its main function is to accurately position and fix the metal sheet during the stamping process. According to the authorization announcement number "CN222175658U", an automotive gear stamping die with a rapid positioning mechanism is disclosed, relating to the field of automotive gear stamping die technology. It includes a support frame, guide pillars, a stamping head, a support turntable, and a drive block. A hydraulic rod and guide pillar are mounted above the support frame, and the support turntable and stamping head are located at the center line of the support frame. A positioning frame is mounted above the support turntable, and a first positioning claw and a second positioning claw are mounted above the positioning frame. A traction link, guide rod, and traction slider are located below the first positioning claw. A drive link and a drive block are mounted on the left side of the traction slider. This device, through the rotatable connection between the positioning frame and the second positioning claw at symmetrical positions of the first positioning claw, can achieve rapid positioning of the gear through synchronous clamping at four points, further ensuring the stamping accuracy of the equipment.

[0004] Currently, stamping dies without positioning mechanisms cannot ensure that the metal sheet is positioned perfectly consistently during each stamping process. This leads to deviations in the size and shape of the stamped parts, affecting their precision and consistency. In automobile manufacturing, the precision of parts directly impacts the assembly quality and performance of the entire vehicle. Therefore, the lack of a positioning mechanism severely affects product quality. Furthermore, the absence of installation and removal capabilities for the upper and lower dies is also a significant drawback. In actual production, dies require regular maintenance, replacement, or adjustment. If the upper and lower dies lack installation and removal capabilities, it will greatly increase the difficulty and time required for maintenance and replacement, impacting production schedules. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing an automotive stamping die with a positioning mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automotive stamping die with a positioning mechanism, comprising a base, wherein a positioning seat is assembled at the upper center of the base, a die platform is inserted inside the positioning seat, a die groove is opened at the upper end of the die platform, and top pins are distributed along both sides inside the die groove.

[0007] The mold groove has a groove at the position of the top pin. A spring is installed inside the groove. The top pin is slidably sleeved with the inner wall of the groove. The two ends of the spring are fixedly installed to the surface of the top pin and the inner wall of the groove, respectively.

[0008] Both sides of the mold platform are fixedly installed with threaded columns by brackets, and both sides of the positioning seat are fixedly installed with collars by brackets. The surface of the threaded column is slidably sleeved with the inner side of the collar. The lower end of the threaded column is threaded with a threaded cap, and the end face of the threaded cap is tightly attached to one side of the collar.

[0009] In detail, the base has columns fixed on both sides, and the same top plate is installed on the upper end of the columns distributed on both sides. Cylinders are symmetrically fixed through the inside of the top plate along both sides.

[0010] In detail, the cylinder is equipped with a piston rod for extension and retraction, and a connecting plate is fitted to the end of the piston rod. A connecting platform is fixedly installed between the connecting plates distributed on both sides, and the connecting platform is a circular platform structure.

[0011] In detail, the end of the connecting plate away from the piston rod is fixed with a limiting sleeve, and the inner side of the limiting sleeve is slidably sleeved with the surface of the column.

[0012] In detail, the surface of the connecting platform is slidably fitted with a connecting seat, and the lower end of the connecting seat is equipped with a stamping head, which fits and connects with the mold groove.

[0013] In detail, pin sleeves are provided through both sides of the connecting seat, and a positioning pin is slidably sleeved inside the pin sleeve. A second spring is wound around the surface of the positioning pin, and the two ends of the second spring are fixedly installed to the end face of the pin sleeve and the end position of the positioning pin, respectively.

[0014] In detail, the connecting platform has a slot inside, and the end of the positioning pin away from the second spring slides into and connects with the inside of the slot.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application:

[0016] 1. This solution adopts a structural design that separates the positioning seat from the mold table. The mold table is quickly fixed by threaded columns, collars and threaded caps, which is convenient for disassembly and replacement. The mold slot and the stamping head are non-standard customized and can be flexibly designed according to different product requirements. The mold table adopts a uniform specification to ensure compatibility with the positioning seat. This modular design not only improves production efficiency, but also reduces mold maintenance costs. The cooperation between the top pin and the spring further simplifies the material loading and unloading operation. After stamping, the formed part is automatically ejected, reducing manual intervention and improving the convenience of operation.

[0017] 2. As described in 1, the cylinder drives the stamping head, and the sliding sleeve structure between the limit sleeve and the column ensures the stability of vertical movement during the stamping process, avoiding deviation or shaking. The connecting table and connecting seat adopt a quick locking mechanism of spring and positioning pin, which not only ensures the stamping head is firmly installed, but also facilitates the replacement of stamping heads of different shapes. The precise docking of the slot and the positioning pin further enhances the fit between the stamping head and the mold groove, ensuring the stamping forming accuracy. In addition, the design of the top pin lifting the plate before stamping and resetting and ejecting the workpiece after stamping not only facilitates loading and unloading, but also reduces the risk of workpiece deformation and improves the quality of finished products. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an enlarged schematic diagram of point A in this utility model;

[0020] Figure 3 This is an enlarged schematic diagram of section B of this utility model;

[0021] Figure 4 For the present utility model Figure 1 Side sectional view;

[0022] Figure 5 This is an enlarged schematic diagram of point C in this utility model.

[0023] In the diagram: 1. Base; 11. Positioning seat; 12. Mold table; 13. Top pin; 14. Groove; 15. Spring 1; 16. Mold groove; 17. Threaded column; 18. Collar; 19. Threaded cap; 2. Column; 21. Top plate; 22. Cylinder; 23. Connecting plate; 24. Limit sleeve; 25. Connecting platform; 26. Connecting seat; 27. Punch head; 2001. Pin sleeve; 2002. Positioning pin; 2003. Spring 2; 2004. Slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-5A stamping die for automobiles with a positioning mechanism includes a base 1. A positioning seat 11 is mounted on the upper center of the base 1. A die table 12 is inserted inside the positioning seat 11. A die groove 16 is opened at the upper end of the die table 12. Top pins 13 are distributed along both sides inside the die groove 16. The die table 12 is of a uniform specification, which is convenient for installation and use with the positioning seat 11. The die groove 16 is a non-standard structure, which can be reasonably designed according to product requirements. The positioning seat 11 and the die table 12 cooperate to achieve convenient installation and disassembly.

[0027] The mold groove 16 has a groove 14 at the position of the top pin 13. A spring 15 is installed inside the groove 14. The top pin 13 is slidably sleeved with the inner wall of the groove 14. The two ends of the spring 15 are fixedly installed to the surface of the top pin 13 and the inner wall of the groove 14, respectively. After the stamped plate is placed in the mold groove 16, it can contact the top pin 13. The top pin 13 can lift the plate before stamping, which is convenient for picking up and putting down the material. After stamping, the stamping head 27 presses the plate into the mold groove 16. Through the shape of the stamping head 27 and the mold groove 16, the plate is stamped into shape. After stamping, the stamping head 27 is removed, and the top pin 13 can push out the formed plate through the reset effect of the spring 15, which is convenient for material discharge.

[0028] Both sides of the mold table 12 are fixedly mounted with threaded posts 17 via brackets, and both sides of the positioning seat 11 are fixedly mounted with collars 18 via brackets. The surface of the threaded post 17 is slidably fitted with the inner side of the collar 18. The lower end of the threaded post 17 is threaded with a threaded cap 19, and the end face of the threaded cap 19 is tightly fitted with one side of the collar 18. When it is necessary to install the mold table 12 and the positioning seat 11, the mold table 12 is placed inside the positioning seat 11. At this time, the threaded post 17 passes through the collar 18 to achieve quick positioning. The positioning and installation of the mold table 12 and the positioning seat 11 can be achieved by the threaded cap 19 and the threaded post 17 being threaded together.

[0029] It should be further explained that columns 2 are fixed on both sides of the base 1. The same top plate 21 is installed on the upper end of the columns 2 distributed on both sides. Cylinders 22 are symmetrically fixed through the inside of the top plate 21 on both sides. By extending and retracting the piston rod of the cylinder 22, the stamping head 27 can be moved up and down, so as to facilitate the stamping of the sheet metal in cooperation with the mold groove 16.

[0030] It should be further explained that the cylinder 22 is equipped with a piston rod for extension and retraction. The end of the piston rod is fitted with a connecting plate 23. A connecting platform 25 is fixedly installed between the connecting plates 23 distributed on both sides. The connecting platform 25 is a circular platform structure. The connecting platform 25 can be easily installed with the connecting seat 26 to realize the installation and disassembly of the stamping head 27.

[0031] It should be further explained that the end of the connecting plate 23 away from the piston rod is fixed through a limit sleeve 24. The inner side of the limit sleeve 24 is slidably sleeved with the surface of the column 2. The limit sleeve 24 can play a role in limiting the sliding when the stamping head 27 moves up and down, ensuring the stability of the up and down movement of the stamping head 27.

[0032] It should be further noted that a connecting seat 26 is slidably sleeved on the surface of the connecting table 25. A stamping head 27 is assembled at the lower end of the connecting seat 26. The stamping head 27 fits and connects with the mold groove 16. The stamping head 27 and the mold groove 16 are the same, both being non-standard parts. They can be designed according to the actual stamping shape and only need to fit with the mold groove 16.

[0033] It should be further explained that pin sleeves 2001 are provided through both sides of the connecting seat 26. A positioning pin 2002 is slidably sleeved inside the pin sleeve 2001. A spring 2003 is wound around the surface of the positioning pin 2002. The two ends of the spring 2003 are fixedly installed to the end face of the pin sleeve 2001 and the end position of the positioning pin 2002, respectively. The spring 2003 can ensure the stable extension and repositioning of the positioning pin 2002. The positioning pin 2002 has a hand-pulled structure, which is simple and quick to operate.

[0034] It should be further explained that the connecting platform 25 has a slot 2004 inside. The end of the positioning pin 2002 away from the spring 2003 slides into the slot 2004. When the connecting platform 25 and the connecting seat 26 need to be installed, the two positioning pins 2002 are pulled so that the connecting platform 25 and the connecting seat 26 can be fitted together. When the position of the slot 2004 corresponds to the position of the positioning pin 2002, the positioning pin 2002 is inserted into the slot 2004 by the reset effect of the spring 2003, so that the installation of the connecting platform 25 and the connecting seat 26 can be stable.

[0035] In practice

[0036] In this design, the mold table 12 is initially positioned by the threaded posts 17 on both sides and the collar 18 on the positioning seat 11. During installation, the mold table 12 is inserted into the positioning seat 11, and the threaded posts 17 naturally pass through the collar 18 to ensure that the two are aligned. Then, the threaded cap 19 is tightened to make it fit tightly against the side of the collar 18, and the mold table 12 is firmly fixed to the positioning seat 11 by the thread tightening force. This design not only simplifies the mold replacement process, but also ensures the stability of the mold table 12 and avoids displacement during the stamping process. At the same time, the mold table 12 adopts a uniform specification, while the mold groove 16 can be customized into a non-standard structure, which not only meets the needs of standardized production, but also adapts to the stamping requirements of different products, significantly improving the versatility and production efficiency of the equipment.

[0037] The ejector pin 13, located within the mold groove 16, is connected to the groove 14 via a spring 15, forming an elastic ejection structure. When not stamping, the ejector pin 13 protrudes from the surface of the mold groove 16 under the tension of the spring 15, lifting the sheet metal for easy material handling by the operator. During stamping, the stamping head 27 presses down on the sheet metal, and the ejector pin 13 retracts into the groove 14 under pressure, compressing the spring 15. After stamping, the stamping head 27 rises, the spring 15 recovers its deformation, and pushes the ejector pin 13 to eject the formed part from the mold groove 16, achieving automatic demolding. This mechanism not only reduces the difficulty of manual part removal but also avoids the risk of stamped parts jamming. At the same time, the spring buffer protects the mold and sheet metal surface, extending the mold's service life.

[0038] The stamping head 27 is driven by the piston rod of the cylinder 22 to move the connecting plate 23 up and down. The limiting sleeve 24 slides along the column 2 to ensure the vertical stability of the stamping trajectory. The connecting table 25 and the connecting seat 26 are connected by a pin: the positioning pin 2002 is inserted into the slot 2004 under the action of the spring 2003 to realize the quick fixation of the stamping head 27. When replacing, the connecting seat 26 can be separated by manually pulling out the positioning pin 2002. This design not only ensures the accurate alignment of the stamping head 27 and the mold groove 16, but also simplifies the replacement process of non-standard stamping heads. In addition, the reciprocating motion of the cylinder 22 transmits pressure evenly through the top plate 21 to ensure that the stamping process is stable and efficient.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stamping die for an automobile having a positioning mechanism, comprising a base (1), characterized in that: A positioning seat (11) is installed at the upper center of the base (1). A mold platform (12) is inserted inside the positioning seat (11). A mold groove (16) is opened at the upper end of the mold platform (12). Top pins (13) are distributed along both sides inside the mold groove (16). The mold groove (16) is provided with a groove (14) at the position of the top pin (13). A spring (15) is provided inside the groove (14). The top pin (13) is slidably sleeved with the inner wall of the groove (14). The two ends of the spring (15) are fixedly installed to the surface of the top pin (13) and the inner wall of the groove (14), respectively. Both sides of the mold platform (12) are fixedly installed with threaded columns (17) by brackets, and both sides of the positioning seat (11) are fixedly installed with collars (18) by brackets. The surface of the threaded column (17) is slidably sleeved with the inner side of the collar (18). The lower end of the threaded column (17) is threaded with a threaded cap (19), and the end face of the threaded cap (19) is tightly attached to one side of the collar (18).

2. The stamping die with a positioning mechanism according to claim 1, characterized in that: The base (1) has columns (2) fixed on both sides. The columns (2) distributed on both sides have the same top plate (21) installed on their upper ends. The top plate (21) has cylinders (22) fixed symmetrically through both sides inside.

3. The stamping die with a positioning mechanism according to claim 2, wherein: The cylinder (22) is equipped with a piston rod for telescopic movement. The end of the piston rod is fitted with a connecting plate (23). A connecting platform (25) is fixedly installed between the connecting plates (23) distributed on both sides. The connecting platform (25) is a circular platform structure.

4. The stamping die with a positioning mechanism according to claim 3, characterized in that: The end of the connecting plate (23) away from the piston rod is fixed through a limiting sleeve (24), and the inner side of the limiting sleeve (24) is slidably sleeved with the surface of the column (2).

5. The stamping die with a positioning mechanism according to claim 4, characterized in that: The surface of the connecting platform (25) is slidably fitted with a connecting seat (26), and the lower end of the connecting seat (26) is equipped with a punch head (27), which fits and connects with the mold groove (16).

6. The stamping die with a positioning mechanism according to claim 5, wherein: Both sides of the connecting seat (26) are provided with pin sleeves (2001), and a positioning pin (2002) is slidably sleeved inside the pin sleeve (2001). A second spring (2003) is wound around the surface of the positioning pin (2002). The two ends of the second spring (2003) are fixedly installed to the end face of the pin sleeve (2001) and the end position of the positioning pin (2002), respectively.

7. The automotive stamping die with a positioning mechanism according to claim 6, characterized in that: The connecting platform (25) has a slot (2004) inside, and the end of the positioning pin (2002) away from the second spring (2003) slides into the slot (2004).

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