Positioning die for stamping automobile parts

By designing a combined structure of limit rod, rotary wheel and lead screw, the mold replacement process is simplified, the problem of cumbersome mold replacement is solved, the efficiency of mold replacement is improved and the working stability is enhanced, and product quality and safety hazards are avoided.

CN224157620UActive Publication Date: 2026-04-24NINGBO SHENGCAKE MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SHENGCAKE MOLD CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing process for changing stamping dies for automotive parts is cumbersome, resulting in low efficiency. Furthermore, the dies are prone to loosening during operation, leading to product quality issues and safety hazards.

Method used

A positioning mold was designed. The combination structure of the limiting rod, rotating wheel, lead screw and moving block simplifies the mold replacement process and achieves stable fixation by spring return limiting rod to prevent mold vibration.

Benefits of technology

It simplifies the mold replacement process, improves replacement efficiency, ensures the stability of the mold during operation, and avoids product quality problems and safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of coking production devices, and discloses a positioning die for stamping automobile parts, which comprises a base and a top seat, four corners of the top of the base are fixedly connected with guide columns, the top of the base and the bottom of the top seat are respectively provided with a placing groove, the periphery of each placing groove is provided with a moving groove, and the moving grooves are connected with the guide columns. The inner wall of the moving groove is rotationally connected with a lead screw, the outer wall of the lead screw is in threaded connection with a moving block, the top of the moving block is fixedly connected with a limiting strip, a limiting assembly is arranged at the end, away from the moving block, of the lead screw, and a top mold is arranged in the top containing groove. And a bottom die is arranged in the placing groove at the bottom. According to the utility model, the limiting rod is pressed to compress the spring II, and the rotating wheel is rotated to drive the screw rod and the moving block, so that the limiting strip is moved out of the limiting groove, and the die can be taken down without complicated tools and tedious steps, so that the die replacement flow is greatly simplified, and the die replacement time is shortened.
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Description

Technical Field

[0001] This utility model relates to the field of coking production equipment, and in particular to positioning dies for stamping automotive parts. Background Technology

[0002] In the automotive manufacturing industry, stamping is a crucial step in the production of automotive parts, directly impacting the quality and performance of vehicles. Automotive parts are diverse and complex in specifications; the production of automotive brake pads involves stamping, which requires changing molds of different sizes.

[0003] Existing stamping methods typically use stamping devices and dies to stamp brake base plates. However, existing dies are usually movably mounted on mounting bases, requiring the use of various tools during installation, which makes installation and replacement cumbersome and greatly reduces the efficiency of die replacement. In response to this technical problem, this application proposes a positioning die for stamping automotive parts. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a positioning mold for stamping automotive parts. By pressing the limiting rod to compress the second spring, rotating the rotating wheel, and driving the lead screw and moving block, the limiting strip is moved out of the limiting groove, allowing the mold to be removed. This eliminates the need for complex tools and cumbersome steps, greatly simplifying the mold replacement process, reducing replacement time, and effectively improving mold replacement efficiency. It also meets the need for rapid switching between molds of different specifications during production. By releasing the limiting rod, the second spring returns to its original position, causing the limiting rod to reset and engage with the teeth of the rotating wheel, achieving a secure limit on the rotating wheel and preventing it from rotating due to vibration during operation. This stabilizes and fixes the top and bottom molds, avoiding product quality problems and safety hazards caused by mold loosening during stamping.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A positioning die for stamping automotive parts includes a base and a top plate. Guide posts are fixedly connected to the four corners of the top of the base. Placement slots are formed on the top of the base and the bottom of the top plate. A moving slot is formed on the outer periphery of the placement slot and is connected to the placement slot. A lead screw is rotatably connected to the inner wall of the moving slot. A moving block is threadedly connected to the outer wall of the lead screw. A limit strip is fixedly connected to the top of the moving block. A limit component is provided at the end of the lead screw away from the moving block. A top die is provided in the top placement slot and a bottom die is provided in the bottom placement slot. Limit slots are formed on the outer walls of both the top die and the bottom die.

[0007] Furthermore, the limiting component includes a rotating wheel fixedly connected to the end of the lead screw away from the moving block. The outer wall of the rotating wheel is fixedly connected with multiple teeth. Grooves are provided at both the left and right ends of the base and the top seat. A limiting rod is provided in the groove, and the limiting rod is located on the outer periphery of the rotating wheel.

[0008] Furthermore, a second spring is provided in the groove, one end of the second spring is connected to the inner wall of the groove, and the other end of the second spring is connected to the limiting rod.

[0009] Furthermore, a spring is fitted on the outer wall of the guide post, one end of the spring being connected to the bottom of the top seat, and the other end of the spring being connected to the top of the base.

[0010] Furthermore, a protrusion is fixedly connected to the outer wall of the limiting rod, and the protrusion is slidably connected to the inner wall of the groove.

[0011] Furthermore, the bottom mold is provided with an automobile brake base plate body on its top, and the automobile brake base plate body is located on the same side as the top mold and the bottom mold.

[0012] Furthermore, the width of the limiting strip is greater than the width of the limiting groove.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by pressing the limit rod to compress the spring, rotating the wheel to drive the lead screw and the moving block, the limit strip is moved out of the limit groove, and the mold can be removed. No complicated tools and cumbersome steps are required, which greatly simplifies the mold replacement process, reduces the mold replacement time, effectively improves the mold replacement efficiency, and meets the needs of quick switching between different specifications of molds in the production process.

[0015] 2. In this utility model, by releasing the limiting rod, the spring returns to its original position, causing the limiting rod to reset and engage with the teeth of the rotating wheel, thus achieving a firm limit on the rotating wheel and preventing it from rotating due to vibration during operation. This stabilizes and fixes the top and bottom molds, avoiding product quality problems and safety hazards caused by mold loosening during the stamping process. Attached Figure Description

[0016] Figure 1 This is a perspective view of the positioning mold for stamping automotive parts proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the top die of the positioning mold for stamping automotive parts proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting strip of the positioning mold for stamping automotive parts proposed in this utility model.

[0019] Legend:

[0020] 1. Base; 2. Guide column; 3. Spring 1; 4. Top seat; 5. Rotary wheel; 6. Limiting rod; 7. Automotive brake base plate body; 8. Top mold; 9. Bottom mold; 10. Limiting groove; 11. Spring 2; 12. Limiting strip; 13. Moving block; 14. Lead screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-3This utility model provides an embodiment of a positioning mold for stamping automotive parts, comprising a base 1 and a top seat 4. Both the base 1 and the top seat 4 are movably mounted on the body of the stamping device. Guide posts 2 are fixedly connected to the four corners of the top of the base 1. Placement grooves are provided on the top of the base 1 and the bottom of the top seat 4. The diameter of the placement grooves is adapted to the diameters of the top mold 8 and the bottom mold 9. A movable groove is provided on the outer periphery of the placement grooves. The movable grooves provide space for the movement of the limiting strip 12 and the movable block 13, and are connected to the placement grooves. By moving the movable block 13... The movable slot is able to move in or out of the placement groove along with the limiting strip 12. A lead screw 14 is rotatably connected to the inner wall of the movable slot, and a movable block 13 is threadedly connected to the outer wall of the lead screw 14. By rotating the lead screw 14, the movable block 13 on its outer wall can move. The top of the movable block 13 is fixedly connected to the limiting strip 12, and an anti-slip strip is provided on the inner side of the limiting strip 12. By providing the anti-slip strip, the friction with the top mold 8 and the bottom mold 9 can be increased, preventing them from rotating. The movement of the movable block 13 can move the limiting strip 12. A rotating wheel is fixedly connected to the end of the lead screw 14 away from the movable block 13. 5. Rotating the rotating wheel 5 causes the lead screw 14 to rotate. Multiple teeth are fixedly connected to the outer wall of the rotating wheel 5. By limiting the movement of these teeth, the lead screw 14 can be limited, preventing it from rotating. Grooves are provided at both ends of the base 1 and the top seat 4. The size of these grooves matches the size of the limiting rod 6. The limiting rod 6 is installed within the groove and is located on the outer periphery of the rotating wheel 5. When the limiting rod 6 extends, it engages with the teeth. When the limiting rod 6 retracts into the groove, it moves out of the groove. Between the teeth, the rotating wheel 5 cannot be limited, and the rotating wheel 5 can rotate freely. A top mold 8 is set in the top placement groove, and a bottom mold 9 is set in the bottom placement groove. The bottom of the top mold 8 and the top of the bottom mold 9 can cooperate with each other, and the protrusion on the bottom mold 9 can position the car brake base plate 7, thereby stamping the car brake base plate body 7. The outer walls of the top mold 8 and the bottom mold 9 are provided with limit grooves 10. By moving the limit strip 12 into the limit groove 10, the top mold 8 or the bottom mold 9 can be limited to prevent them from shifting during operation.

[0023] Reference Figure 1-3The groove contains a second spring 11, one end of which is connected to the inner wall of the groove, and the other end is connected to the limiting rod 6. The second spring 11 allows the limiting rod 6 to reset, thus enabling it to limit multiple teeth. A first spring 3 is fitted onto the outer wall of the guide post 2, one end of which is connected to the bottom of the top seat 4, and the other end to the top of the base 1. The first spring 3 provides cushioning for the top seat 4, thereby improving stamping accuracy. A protrusion is fixedly connected to the outer wall of the limiting rod 6, and the protrusion slides on the inner wall of the groove, allowing the limiting rod 6 to slide within the groove. A car brake base plate body 7 is located on the top of the bottom mold 9, on the side closest to the top mold 8 and the bottom mold 9. The width of the limiting strip 12 is greater than the width of the limiting groove 10.

[0024] Working principle: First, the car brake base plate body 7 is placed at the top fixed position of the bottom mold 9. Then, the top seat 4 is pushed downward by the stamping device. Through the cooperation of the top mold 8 and the bottom mold 9, the car brake base plate body 7 is stamped. When it is necessary to replace the top mold 8 and bottom mold 9 of the same size but different specifications, the limiting rod 6 is first pressed into the groove, thereby compressing the spring 11 through the limiting rod 6. Then, the rotating wheel 5 is rotated, causing the lead screw 14 to rotate. The rotation of the lead screw 14 enables the movement of its outer wall. The block 13 moves, which in turn moves the limiting strip 12 along with the moving block 13, causing the limiting strip 12 to move out of the limiting groove 10, thereby allowing the top mold 8 or bottom mold 9 to be removed. This operation is convenient and greatly improves the efficiency of replacing the top mold 8 and bottom mold 9. After the replacement is completed, the limiting rod 6 is released and the limiting rod 6 is reset by the spring 11, which in turn moves the limiting rod 6 between multiple teeth, thereby limiting the rotating wheel 5 and preventing the rotating wheel 5 from rotating, thus achieving the effect of stably limiting the top mold 8 and bottom mold 9.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning die for stamping automotive parts, characterized in that, The device includes a base (1) and a top seat (4). Guide columns (2) are fixedly connected to the four corners of the top of the base (1). Placement slots are provided at the top of the base (1) and the bottom of the top seat (4). Movable slots are provided on the outer periphery of the placement slots and are connected to the placement slots. A lead screw (14) is rotatably connected to the inner wall of the movable slot. A movable block (13) is threadedly connected to the outer wall of the lead screw (14). A limit strip (12) is fixedly connected to the top of the movable block (13). A limit component is provided at the end of the lead screw (14) away from the movable block (13). A top mold (8) is provided in the top placement slot and a bottom mold (9) is provided in the bottom placement slot. Limit slots (10) are provided on the outer walls of the top mold (8) and the bottom mold (9).

2. The positioning die for stamping automotive parts according to claim 1, characterized in that: The limiting component includes a rotating wheel (5) fixedly connected to the end of the lead screw (14) away from the moving block (13). The outer wall of the rotating wheel (5) is fixedly connected with multiple teeth. The left and right ends of the base (1) and the top seat (4) are provided with grooves. A limiting rod (6) is provided in the groove. The limiting rod (6) is located on the outer periphery of the rotating wheel (5).

3. The positioning die for stamping automotive parts according to claim 2, characterized in that: A second spring (11) is provided in the groove. One end of the second spring (11) is connected to the inner wall of the groove, and the other end of the second spring (11) is connected to the limiting rod (6).

4. The positioning die for stamping automotive parts according to claim 1, characterized in that: The outer wall of the guide post (2) is fitted with a spring (3), one end of the spring (3) is connected to the bottom of the top seat (4), and the other end of the spring (3) is connected to the top of the base (1).

5. The positioning die for stamping automotive parts according to claim 2, characterized in that: The outer wall of the limiting rod (6) is fixedly connected to a protrusion, which is slidably connected to the inner wall of the groove.

6. The positioning die for stamping automotive parts according to claim 1, characterized in that: The bottom mold (9) is provided with a car brake base plate body (7) on its top, and the car brake base plate body (7) is located on the same side as the top mold (8) and the bottom mold (9).

7. The positioning die for stamping automotive parts according to claim 1, characterized in that: The width of the limiting strip (12) is greater than the width of the limiting groove (10).