High-strength automobile deep-drawing part continuous stamping die device
By setting an adjustment mechanism and a piston counterweight in the continuous stamping die device, the problem of insufficient material ejection force caused by nitrogen cylinder pressure decay was solved, and stable processing and efficient production of parts were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU YULONG AUTOMOBILE PARTS CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-14
AI Technical Summary
The pressure of existing nitrogen cylinders decreases after long-term use, resulting in insufficient material ejection force, which affects the machining accuracy and quality of parts, and reduces the stability and reliability of the production line.
By setting an adjustment mechanism inside the ejector tube, the motor drives the swing rod to drive the pawl to lift the toothed column, which moves the adjustment frame upward, shortens the piston stroke, and increases the gas compression. Combined with the internal counterweight block and sealing design of the piston, the stability of the ejector force is ensured.
It effectively overcomes the pressure decay of nitrogen cylinders, ensures that parts exit the mold normally, improves machining accuracy and quality, and ensures the continuity and stability of production.
Smart Images
Figure CN224487480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive deep-drawing parts technology, specifically a continuous stamping die device for high-strength automotive deep-drawing parts. Background Technology
[0002] In the automotive manufacturing industry, high-strength deep-drawn automotive parts are widely used in key parts of automobiles due to their excellent mechanical properties and structural strength. They play a vital role in improving the overall performance and safety of automobiles. As a key piece of equipment for producing these high-strength deep-drawn automotive parts, the performance of the progressive stamping die directly affects the production efficiency and quality of the parts.
[0003] During continuous stamping, the material needs to withstand huge forces to ensure that the parts can be accurately formed according to the design requirements. However, after the parts are stamped, they need to be smoothly removed from the mold. Due to the large stamping force, the corresponding ejection force is increased. If the ejection force is insufficient, the parts may get stuck in the mold, causing production interruption, reducing production efficiency, and even damaging the mold and equipment, increasing production costs.
[0004] Currently, nitrogen cylinder ejection devices are widely used in continuous stamping dies. Nitrogen cylinders have advantages such as simple structure and rapid response, and can meet ejection requirements to a certain extent. However, nitrogen cylinders are prone to pressure decay after long-term use. As the usage time increases, the nitrogen pressure inside the nitrogen cylinder will gradually decrease, resulting in a reduction in the ejection force it provides, which in turn affects the ejection effect. When the ejection force is insufficient, the parts may not be able to exit the die normally, resulting in problems such as jamming and deformation, which affects the machining accuracy and quality of the parts, and also reduces the stability and reliability of the production line.
[0005] In view of the above, this application is hereby submitted. Utility Model Content
[0006] The purpose of this invention is to provide a continuous stamping die device for high-strength automotive deep-drawing parts, so as to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, this utility model provides a high-strength automotive deep-drawing parts continuous stamping die device, including a material ejector tube, an adjustment mechanism fixedly installed on the side wall of the material ejector tube, and a piston abutting the top of the adjustment mechanism;
[0008] The adjustment mechanism includes a sealing plate fixedly installed on the inner wall of the discharge pipe. A motor is fixedly installed at the bottom of the inner wall of the sealing plate. A swing rod is fixedly installed at the drive end of the motor. A connecting shaft is fixedly installed at both ends of the swing rod. A fixed rod and a secondary rod are rotatably installed on the inner walls of the two connecting shafts, respectively. A pawl is rotatably installed on the side walls of the fixed rod and the secondary rod. A toothed column is abutted at the end of the pawl. An adjustment frame is fixedly installed on the top of the toothed column. The top of the adjustment frame abuts against the bottom of the piston.
[0009] Furthermore, a limiting groove is formed on the inner wall of the tooth column, and a limiting rod is slidably connected to the inner wall of the limiting groove. Both sides of the limiting rod are fixedly connected to the inner wall of the sealing plate.
[0010] The outer wall of the piston is in contact with the inner wall of the discharge tube, and a counterweight is provided inside the piston.
[0011] Furthermore, a conveyor belt is fixedly connected to the bottom of the base plate, and the conveyor belt is made of stainless steel;
[0012] The side wall of the adjustment mechanism is welded to the inner wall of the ejector tube, and a rubber pad is provided on the top of the adjustment frame.
[0013] Furthermore, a base plate is fixedly installed on the top of the ejector tube, and a stamping die is fixedly installed on the top of the base plate.
[0014] Furthermore, both the fixed rod and the auxiliary rod have locking grooves at their tops, and pins are inserted into the inner walls of the locking grooves;
[0015] An air inlet is provided at the bottom of the inner wall of the discharge pipe, and an air supply pipe is fixedly connected to the inner wall of the air inlet. A nitrogen cylinder is fixedly installed at the bottom of the air supply pipe.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. When the pressure of the nitrogen cylinder decreases after long-term use, the motor is started to drive the swing rod to rotate back and forth, which makes the pawl lift the tooth column and move the adjusting frame upward, thereby shortening the piston stroke. The gas between its top and the stamping die is compressed more, which can effectively overcome the pressure decrease of the nitrogen cylinder, ensure sufficient material ejection force, and allow the parts to be ejected from the die normally, thus improving the machining accuracy and quality of the parts.
[0018] 2. The piston is equipped with a counterweight, which allows the piston to fall naturally under its own weight after completing the unloading action, preparing for the next unloading action and ensuring the continuity and stability of the unloading process. Attached Figure Description
[0019] Figure 1 A schematic diagram of the ejector tube structure of a continuous stamping die device for high-strength automotive deep-drawing parts;
[0020] Figure 2 This is a schematic diagram of the internal structure of the adjustment mechanism of a continuous stamping die device for high-strength automotive deep-drawing parts.
[0021] Figure 3 This is an enlarged schematic diagram of the adjustment mechanism of a continuous stamping die device for high-strength automotive deep-drawing parts.
[0022] Figure 4 A schematic diagram of the front structure of a continuous stamping die device for high-strength automotive deep-drawing parts;
[0023] Figure 5 This is a schematic diagram of the top structure of a continuous stamping die device for high-strength automotive deep-drawing parts.
[0024] In the diagram: 1. Conveyor belt; 2. Stamping die; 3. Base plate; 4. Unloading pipe; 5. Piston; 6. Adjusting mechanism; 601. Motor; 602. Swing rod; 603. Fixed rod; 604. Pawl; 605. Toothed column; 606. Limiting rod; 607. Adjusting frame; 608. Sealing plate; 609. Locking groove; 610. Connecting shaft; 611. Limiting groove; 612. Secondary rod; 7. Air inlet; 8. Air supply pipe; 9. Nitrogen cylinder. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-5This utility model provides a technical solution: a continuous stamping die device for high-strength automotive deep-drawing parts, including a ejector tube 4, an adjusting mechanism 6 fixedly installed on the side wall of the ejector tube 4, a piston 5 abutting at the top of the adjusting mechanism 6, the adjusting mechanism 6 including a sealing plate 608 fixedly installed on the inner side wall of the ejector tube 4, a motor 601 fixedly installed at the bottom of the inner wall of the sealing plate 608, a swing rod 602 fixedly installed at the drive end of the motor 601, connecting shafts 610 fixedly installed at both ends of the swing rod 602, a fixed rod 603 and a secondary rod 612 respectively rotatably installed on the inner walls of the two connecting shafts 610, a pawl 604 rotatably installed on the side walls of the fixed rod 603 and the secondary rod 612, a toothed column 605 abutting at the end of the pawl 604, and an adjusting mechanism fixedly installed at the top of the toothed column 605. The top of the adjusting frame 607 abuts against the bottom of the piston 5. After long-term use, the nitrogen cylinder 9 is prone to pressure decay, which leads to a reduction in the ejection force and seriously affects the ejection effect. At this time, the motor 601 drives the swing rod 602 to swing, which in turn drives the fixed rod 603 and the auxiliary rod 612 to move up and down, causing the pawl 604 to lift the tooth column 605, and the adjusting frame 607 to move upward, thereby shortening the stroke of the piston 5. Even if the nitrogen cylinder 9 experiences pressure decay, the gas between its top and the stamping die 2 is compressed more due to the shorter stroke of the piston 5, which can effectively overcome the pressure decay of the nitrogen cylinder 9, ensure sufficient ejection force, and allow the parts to exit the die normally, avoiding problems such as jamming and deformation, and improving the processing accuracy and quality of the parts.
[0027] Please see Figure 3 This utility model provides a technical solution: a high-strength automotive deep-drawing parts continuous stamping die device, including a fixed rod 603 and a secondary rod 612, both of which have locking grooves 609 at their tops, and a pin is inserted into the inner wall of the locking groove 609. When a new nitrogen cylinder 9 is replaced, the pin inserted into the locking groove 609 can be pulled out to complete the unlocking operation of the fixed rod 603 and the secondary rod 612, so that the pawl 604, which was originally abutting against the toothed column 605, will disengage from the toothed column 605. After losing the support of the pawl 604, the adjusting frame 607 will fall naturally, thereby restoring the original stroke of the piston 5 to adapt to the working state of the new nitrogen cylinder 9.
[0028] Please see Figure 3 This utility model provides a technical solution: a continuous stamping die device for high-strength automotive deep-drawing parts, including a limiting groove 611 formed on the inner wall of a toothed column 605, a limiting rod 606 slidably connected to the inner wall of the limiting groove 611, and both sides of the limiting rod 606 being fixedly connected to the inner wall of a sealing plate 608. The cooperation between the limiting groove 611 and the limiting rod 606 provides a clear guiding path for the movement of the toothed column 605. Since the position of the limiting rod 606 is fixed, the toothed column 605 can only move linearly in the direction defined by the limiting groove 611, ensuring the accuracy and stability of the movement of the toothed column 605.
[0029] Please see Figure 1 This utility model provides a technical solution: a high-strength automotive deep-drawing parts continuous stamping die device, including an air inlet 7 opened at the bottom of the inner wall of the ejector tube 4, an air supply pipe 8 fixedly connected to the inner wall of the air inlet 7, and a nitrogen cylinder 9 fixedly installed at the bottom of the air supply pipe 8. By connecting the nitrogen cylinder 9 to the ejector tube 4 through the air supply pipe 8 and the air inlet 7, the overall structure layout is more compact.
[0030] Please see Figure 1 , Figure 2 This utility model provides a technical solution: a continuous stamping die device for high-strength automotive deep-drawing parts, including a piston 5 whose outer wall is fitted with the inner wall of the ejector tube 4, forming a relatively closed space between them. When the nitrogen cylinder 9 fills the ejector tube 4 with gas through the air inlet 7 and the gas supply pipe 8, since the piston 5 and the inner wall of the ejector tube 4 are fitted without gaps, the gas can only push the piston 5 upward, effectively avoiding gas leakage and ensuring stable output of ejection force. The piston 5 is equipped with a counterweight, so that after the piston 5 completes the ejection action, it can fall naturally under its own weight, preparing for the next ejection action, thus ensuring the continuity and stability of the ejection process.
[0031] Please see Figure 4 , Figure 5 This utility model provides a technical solution: a high-strength automotive deep-drawing parts continuous stamping die device, including a bottom plate 3 fixedly installed on the top of the ejector tube 4, and a stamping die 2 fixedly installed on the top of the bottom plate 3. The layered installation method provides a solid foundation for the stable operation of the stamping die 2. At the same time, a conveyor belt 1 made of stainless steel is fixedly connected to the bottom of the bottom plate 3. Stainless steel has high strength and hardness, which enables the conveyor belt 1 to withstand a large load and is not easily deformed or damaged during long-term operation, thereby improving the reliability and efficiency of the entire production process.
[0032] Please see Figure 2 This utility model provides a technical solution: a high-strength automotive deep-drawing parts continuous stamping die device, including an adjustment mechanism 6 whose side wall and the inner wall of the ejector tube 4 are welded together, thereby effectively ensuring the sealing of the ejector tube 4 and preventing gas leakage from affecting the ejection effect. A rubber pad is provided on the top of the adjustment frame 607. The rubber pad plays a buffering role when the adjustment frame 607 contacts the piston 5, reducing the impact force between the two and ensuring the stability and reliability of the ejection process.
[0033] Working principle: When the pressure of nitrogen cylinder 9 decreases after long-term use, motor 601 is started. The drive end of motor 601 drives swing rod 602 to rotate back and forth. The swing rod 602 swings back and forth, which in turn drives fixed rod 603 and auxiliary rod 612 to move up and down back and forth. The up and down movement of fixed rod 603 and auxiliary rod 612 causes pawl 604 to move, which in turn causes pawl 604 to lift tooth column 605. The lifting of tooth column 605 causes adjustment frame 607 to move upward, thereby shortening the stroke of piston 5. At this time, nitrogen cylinder 9 slowly fills the inside of ejector pipe 4 with nitrogen. Nitrogen enters the inside between ejector pipe 4 and piston 5 through air inlet 7 via air supply pipe 8. At this time, the device is started normally. Even if the pressure of nitrogen cylinder 9 decreases, the gas between the top of piston 5 and stamping die 2 is compressed more due to the shortened stroke of piston 5. Therefore, the pressure decrease of nitrogen cylinder 9 can be overcome.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A continuous stamping die device for high-strength automotive deep-drawing parts, comprising an ejector tube (4), characterized in that: An adjustment mechanism (6) is fixedly installed on the side wall of the discharge pipe (4), and a piston (5) is abutted on the top of the adjustment mechanism (6); The adjustment mechanism (6) includes a sealing plate (608) fixedly installed on the inner wall of the discharge pipe (4). A motor (601) is fixedly installed at the bottom of the inner wall of the sealing plate (608). A swing rod (602) is fixedly installed at the drive end of the motor (601). A connecting shaft (610) is fixedly installed at both ends of the swing rod (602). A fixed rod (603) and a secondary rod (612) are rotatably installed on the inner walls of the two connecting shafts (610). A pawl (604) is rotatably installed on the side walls of the fixed rod (603) and the secondary rod (612). A toothed column (605) abuts at the end of the pawl (604). An adjustment frame (607) is fixedly installed on the top of the toothed column (605). The top of the adjustment frame (607) abuts against the bottom of the piston (5).
2. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 1, characterized in that: The top of both the fixed rod (603) and the auxiliary rod (612) is provided with a locking groove (609), and a pin is inserted into the inner wall of the locking groove (609).
3. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 2, characterized in that: The inner wall of the toothed column (605) has a limiting groove (611), and the inner wall of the limiting groove (611) is slidably connected to a limiting rod (606). Both sides of the limiting rod (606) are fixedly connected to the inner wall of the sealing plate (608).
4. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 3, characterized in that: An air inlet (7) is provided at the bottom of the inner wall of the discharge pipe (4), and an air supply pipe (8) is fixedly connected to the inner wall of the air inlet (7). A nitrogen cylinder (9) is fixedly installed at the bottom of the air supply pipe (8).
5. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 4, characterized in that: The outer wall of the piston (5) is in contact with the inner wall of the ejector tube (4), and a counterweight is provided inside the piston (5).
6. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 5, characterized in that: The top of the ejector tube (4) is fixedly installed with a base plate (3), and the top of the base plate (3) is fixedly installed with a stamping die (2).
7. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 6, characterized in that: The bottom of the base plate (3) is fixedly connected to a conveyor belt (1), which is made of stainless steel.
8. The continuous stamping die device for high-strength automotive deep-drawing parts as described in claim 7, characterized in that: The side wall of the adjustment mechanism (6) is welded to the inner wall of the ejector tube (4), and a rubber pad is provided on the top of the adjustment frame (607).