Pressing shell positioning and correcting tool
By designing a pressure shell positioning and correction fixture, and utilizing a combination of base, wall plate and buffer mechanism, the problem of uneven pressure shell shape was solved, achieving precise positioning and efficient correction, and improving product quality and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ALUMI (WUXI) CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-05
AI Technical Summary
Existing press shell tooling cannot guarantee that the shape of each press shell remains flat, resulting in uneven thickness and affecting product quality and efficiency.
A pressure shell positioning and correction fixture was designed, including a base, a wall plate, a pressure plate, and a buffer mechanism. The fixture achieves precise positioning and correction of the pressure shell through the combination of round hole positioning, pressure plate pressure, and buffer mechanism.
It improves the positioning accuracy and correction efficiency of the pressure shell, ensures the flatness of the pressure shell, enhances product quality and work efficiency, and protects the equipment from impact damage through the buffer mechanism.
Smart Images

Figure CN224195639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning and correction technology, and in particular to a positioning and correction fixture for a pressure shell. Background Technology
[0002] In many industrial production scenarios, the precise assembly of components is a key link to ensure product quality and performance. Taking battery assembly as an example, the pressing operation of the battery cover and the shell needs to be completed with the help of pressing tooling. Traditional pressing tooling mostly relies on cylinder to control the stroke and carries out the pressing operation by making contour blocks.
[0003] A search revealed Chinese Patent Publication No. CN105921979B, which discloses a pressing fixture for pressing a coil into an annular groove of a housing. The fixture includes a base for holding the housing; a pressing head positioned above the housing, capable of pressing the coil into the annular groove through vertical movement; and an electrical control system comprising a detection module and a control module. The detection module includes a triggering device and a display device. The triggering device is mounted on the base. When the housing is placed on the base, the triggering device has two states: whether it is triggered by a protrusion on the bottom of the housing. The display device displays two different results based on the two states of the triggering device. The control module controls the pressing head to move downwards or remain stationary based on the two different results displayed by the display module. This invention utilizes the detection and control modules to automatically control the identification and assembly of the housing, greatly reducing the probability of incorrect coil-housing assembly, improving assembly efficiency, and reducing the labor intensity of workers. However, after the pressing housing is cast, due to the special shape of the pressing housing product, it is impossible to guarantee that the shape of each pressing housing remains flat, resulting in uneven thickness. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a positioning and straightening fixture for the press shell, which aims to improve the problem in the prior art where the special shape of the press shell product cannot guarantee that the shape of each press shell remains flat, resulting in uneven thickness.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure shell positioning and correction fixture, including a base, the top of which has multiple round holes, and the front and rear sides of the top of the base have multiple mounting grooves, the inner walls of the multiple mounting grooves are fixedly connected to handles, the top left side of the base is fixedly connected to a wall plate, the front and rear sides of the top of the wall plate are both provided with grooves, the top center of the base is fixedly connected to a pressure plate, the top of the pressure plate is threadedly connected to a lead screw, and the top left end of the base is provided with a buffer mechanism.
[0006] The above technical solution involves: multiple round holes on the top of the base for positioning and placing the parts to be processed; handles in the mounting slots on the front and rear sides of the top for easy handling of the tooling; and grooves on the front and rear sides of the top of the left wall panel to assist in fixing or positioning related parts. The pressure plate at the top center of the base is threadedly connected to a lead screw. When the lead screw is rotated, it pushes the pressure plate downward, applying pressure to the workpiece such as the pressure shell placed on the base. The positioning of the pressure shell is achieved by using the round holes for positioning and the pressure plate pressure. If the device protrudes above the grooves in the wall panel, it needs to be corrected. It is then flattened with tools until it is flush with the upper surface of the wall panel, thus completing the positioning and correction operation of the pressure shell.
[0007] As a further description of the above technical solution:
[0008] The buffer mechanism includes a fixed base, the bottom of which is fixedly connected to the top left end of the base. Fixed posts are fixedly connected to both the front and rear sides of the fixed base. Springs are fixedly connected to both the front and rear sides of the inner wall of the fixed base. A connecting rod is provided in the middle of two springs. The front and rear ends of the connecting rod are fixedly connected to the front and rear sides of the inner wall of the fixed base, respectively. A movable block is fixedly connected to one adjacent end of each of the two springs. The inner walls of the two movable blocks are slidably connected to the outer wall of the connecting rod. A connecting rod is fixedly connected to one adjacent side of each of the two movable blocks. A rotating pull is rotatably connected between adjacent connecting rods. A top plate is fixedly connected to the top of the outer wall of each of the two fixed posts. A connecting rod is fixedly connected to the left and right sides of the bottom of the top plate. The two connecting rods are rotatably connected to the left and right sides of the outer wall of the rotating pull.
[0009] Through the above technical solution: the fixed seat is fixed to the top left end of the base. The fixed columns on its front and rear sides and the springs on the front and rear sides of the inner wall together form the basic structure of the buffer. The connecting rod in the middle of the spring is stably connected to the front and rear sides of the inner wall of the fixed seat, providing support for the spring and related components. When subjected to external impact, the two springs will be compressed or extended, causing the moving block connected to them to slide on the outer wall of the connecting rod. The moving block is connected to the rotating block through the connecting rod. At the same time, the top plate at the top of the fixed column and the connecting rod 3 are rotatably connected to the rotating block. This allows the impact energy to be dispersed and buffered through the deformation of the spring, the sliding of the moving block, and the rotational connection between the rotating block and the connecting rod 3, thereby realizing the buffering function of the buffer mechanism and effectively protecting the relevant equipment from damage caused by excessive impact.
[0010] As a further description of the above technical solution:
[0011] Both handles have a groove on the top left and right sides, and screws are installed on the inner walls of both grooves.
[0012] Through the above technical solution, the groove provides space for the installation and placement of screws. By tightening or loosening the screws, other components can be fixed, their positions adjusted, or they can be connected to other structures with corresponding screw holes.
[0013] As a further description of the above technical solution:
[0014] The inner walls of the multiple mounting slots are provided with threaded holes, and the inner walls of the multiple threaded holes are threadedly connected to the outer wall of the screw.
[0015] The above technical solution allows for the tightening or disassembly of the handle of the component installed in the mounting slot by screwing the screw into or out of the threaded hole.
[0016] As a further description of the above technical solution:
[0017] The top of the two handles is provided with multiple anti-slip grooves, and the outer walls of the multiple anti-slip grooves are all designed with a smooth surface.
[0018] Through the above technical solution, the anti-slip groove can increase the friction between the operator's hand and the handle, so that the operator can hold the handle more firmly when moving the tooling, reducing operational errors and safety hazards caused by hand slippage.
[0019] As a further description of the above technical solution:
[0020] The outer walls of the two fixed columns are fixedly connected to the front and rear sides of the fixed base at equal intervals, and the horizontal positions of the two fixed columns are equal.
[0021] The above technical solution enables the fixed columns to provide balanced and stable support to the structure above, ensuring that the entire buffer mechanism is subjected to uniform force in the vertical direction and avoiding damage caused by excessive local force due to uneven distribution of support points.
[0022] As a further description of the above technical solution:
[0023] Each of the two fixed columns has a cap at the top of its outer wall, and the bottom of each cap is fixedly connected to the top of the two fixed columns.
[0024] Through the above technical solution, the cap can protect the top of the fixed column, preventing damage to the top of the fixed column due to collision and wear during long-term use, thereby affecting the supporting performance of the fixed column.
[0025] As a further description of the above technical solution:
[0026] Multiple anti-slip grooves are equidistantly formed on the top of the two handles, and the outer walls of the multiple anti-slip grooves are elliptical in design.
[0027] The above technical solution allows for the even distribution of friction through equidistant anti-slip grooves. Regardless of the operator's grip posture, a relatively consistent anti-slip effect can be achieved, thus improving grip stability.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, the wall plate on the left side of the base and its second groove can prevent excessive movement of the pressure shell and assist in precise positioning. The pressure plate and the lead screw work together to apply pressure to the pressure shell to prevent displacement during correction. When the device is abnormally high above the second groove of the wall plate, the pressure shell position can be ensured to be accurate by knocking it flat, thus meeting the processing requirements, improving work efficiency and quality, and ensuring the efficient operation of the tooling in the positioning and correction of the pressure shell.
[0030] 2. In this utility model, when the tooling is subjected to external impact, the top plate is subjected to force first, which is transmitted to the rotating shaft through the connecting rod three. The rotating shaft drives the connecting rod two, which in turn pushes the moving block to slide along the connecting rod one, so that the spring in the fixed seat is compressed or stretched. In this process, the spring converts the impact force into elastic potential energy and stores it, effectively playing a buffering role. Attached Figure Description
[0031] Figure 1 This is a perspective view of the pressure shell positioning and correction fixture proposed in this utility model;
[0032] Figure 2 This is a front view of the pressure shell positioning and straightening fixture proposed in this utility model;
[0033] Figure 3 This is a partial structural exploded view of the pressure shell positioning and correction fixture proposed in this utility model;
[0034] Figure 4 This is a top view of the pressure shell positioning and correction fixture proposed in this utility model;
[0035] Figure 5 This is an exploded view of the buffer mechanism of the pressure shell positioning and correction fixture proposed in this utility model.
[0036] Legend:
[0037] 1. Base; 2. Buffer mechanism; 201. Fixed seat; 202. Fixed column; 203. Spring; 204. Connecting rod one; 205. Moving block; 206. Connecting rod two; 207. Rotary drawer; 208. Top plate; 209. Connecting rod three; 3. Round hole; 4. Mounting groove; 5. Handle; 6. Wall panel; 7. Pressure plate; 8. Screw; 9. Groove one; 10. Screw; 11. Anti-slip groove; 12. Threaded hole; 13. Groove two; 14. Cap. Detailed Implementation
[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0039] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a pressure shell positioning and straightening fixture, including a base 1. The base 1 serves as the basic support component of the entire fixture. Multiple circular holes 3 are formed on the top of the base 1, and multiple mounting grooves 4 are formed on the front and rear sides of the top of the base 1. The mounting grooves 4 are used to install handles 5. Handles 5 are fixedly connected to the inner walls of the multiple mounting grooves 4. The handles 5 facilitate the operator in moving the entire pressure shell positioning and straightening fixture. When it is necessary to move the fixture to different work areas or adjust its position, the operator can easily move it by holding the handles 5. A wall panel 6 is fixedly connected to the top left side. The top and front sides of the wall panel 6 are provided with grooves 13. The grooves 13 that are higher than the wall panel 6 need to be corrected and flattened with tools until they are flush with the upper surface of the wall panel 6. A pressure plate 7 is fixedly connected to the top center of the base 1. The pressure plate 7 moves downward to apply pressure to the pressure shell. The top of the pressure plate 7 is threaded with a screw 8. When the screw 8 is rotated counterclockwise, the pressure plate 7 rises, which makes it easy to replace or adjust the position of the pressure shell, thereby realizing the pressure adjustment during the positioning and correction of the pressure shell. A buffer mechanism 2 is provided at the top left end of the base 1.
[0040] Specifically, the base 1 serves as the basic support, with multiple round holes 3 on its top for precise placement of the pressure shell to be processed, achieving initial horizontal positioning and providing a reference for subsequent operations. Multiple mounting slots 4 on the front and rear sides of the top have handles 5 fixedly connected to the inner walls, facilitating the operator's handling of the tooling. The multiple mounting slots 4 also increase installation flexibility. The wall plate 6 on the top left side of the base 1 prevents the pressure shell from moving excessively to the left. The grooves 13 on the front and rear sides of the wall plate 6 can cooperate with positioning pins to further precisely fix the pressure shell. The pressure plate 7 at the top center of the base 1, connected by a threaded screw 8, can be raised and lowered by rotating the screw 8, applying pressure to the pressure shell and pressing it firmly onto the base 1 to prevent displacement during correction. When the device protrudes above the groove 13 on the wall plate 6, it indicates an abnormal position of the pressure shell, requiring correction. At this point, tools are used to flatten it until it is flush with the upper surface of the wall plate 6, ensuring the accuracy of the pressure shell during positioning and correction, meeting processing requirements, and guaranteeing the efficient operation of the entire tooling in the positioning and correction of the pressure shell, thus improving work quality and efficiency.
[0041] Reference Figure 1 , Figure 3 and Figure 5 The buffer mechanism 2 includes a fixed base 201, the bottom of which is fixedly connected to the top left end of the base 1. Fixed posts 202 are fixedly connected to both the front and rear sides of the fixed base 201, serving as support and positioning elements. Springs 203 are fixedly connected to both the front and rear sides of the inner wall of the fixed base 201 to absorb and buffer external impact forces. When the tooling is impacted, the springs 203 will compress or extend. A connecting rod 204 is provided in the middle of the two springs 203, providing support for the springs 203 and ensuring that the springs 203 maintain a stable shape and position during compression and extension. It also provides a track for the sliding of the moving block 205. The front and rear ends of the connecting rod 204 are fixedly connected to the front and rear sides of the inner wall of the fixed base 201, respectively. Moving blocks 205 are fixedly connected to adjacent ends of the two springs 203. 5. The inner walls of the two movable blocks 205 are slidably connected to the outer walls of the connecting rod 1 204 respectively. Under the drive of the spring 203, the movable blocks 205 slide along the outer walls of the connecting rod 1 204, transmitting the elastic force of the spring 203 to the connecting rod 206 and the rotating block 207, thereby realizing the transmission and dispersion of impact energy. The adjacent sides of the two movable blocks 205 are fixedly connected to the connecting rod 206. The adjacent sides of the two connecting rods 206 are rotatably connected to the rotating block 207. The top of the outer walls of the two fixed columns 202 are fixedly connected to the top plate 208. The bottom left and right sides of the top plate 208 are fixedly connected to the connecting rod 3 209. The connecting rod 3 209 connects the top plate 208 and the rotating block 207, transmitting force between the top plate 208 and the rotating block 207. The adjacent sides of the two connecting rods 3 209 are rotatably connected to the left and right sides of the outer walls of the rotating block 207.
[0042] Specifically, the bottom of the fixed base 201 is fixed to the top left end of the base 1, providing a stable installation foundation for the buffer mechanism 2. The fixed columns 202 on the front and rear sides of the fixed base 201 support the structure of the top plate 208, ensuring the structural stability of the buffer mechanism 2. The springs 203 on the front and rear sides of the inner wall of the fixed base 201 are key to absorbing impact energy. When the tooling is impacted, the springs 203 deform and slide along the connecting rod 1 204 through the moving block 205, transmitting the force to the connecting rod 206 and the rotating pulley 207. The rotating pulley 207 rotates under the drive of the connecting rod 206, further dispersing the energy. The top plate 208 at the top of the fixed column 202 connects the two fixed columns 202 to enhance stability and provides an installation position for the connecting rod 3 209. The connecting rod 3 209 connects the top plate 208 and the rotating pulley 207, working together with each component to effectively buffer external impact force, protect the tooling and pressure shell from excessive impact during processing, and ensure the stable operation of the entire tooling.
[0043] Reference Figure 1 , Figure 3 and Figure 4Each of the two handles 5 has a groove 9 on its top left and right sides. A screw 10 is installed on the inner wall of each groove 9. The groove 9 provides precise installation space for the screw 10. Its position is designed on the top left and right sides of the handle 5 to ensure that the main gripping function of the handle 5 is not affected when installing and using the screw 10. Multiple mounting slots 4 have threaded holes 12 on their inner walls. The inner walls of the multiple threaded holes 12 are threaded to the outer walls of the screw 10. The screw 10 can be screwed into or out of the groove 9 by rotating clockwise or counterclockwise. Multiple anti-slip grooves 11 are provided on the top of the two handles 5. The outer walls of the multiple anti-slip grooves 11 are all rounded. The threaded holes 12 are designed to perfectly match the screw 10, thus providing a reliable fixing method for components installed in the mounting slots 4. The main function of the anti-slip grooves 11 is to significantly increase the friction between the operator's hand and the handle 5.
[0044] Specifically, the grooves 9 on the left and right sides of the top of the handle 5 provide installation space for the screws 10. By screwing the screws 10 into or out of the inner wall of the grooves 9, the threaded holes 12 on the inner wall of the multiple mounting slots 4 are threadedly connected to the outer wall of the screws 10, allowing the handle 5 to be securely installed in the mounting slots 4, ensuring reliability during handling. The top of the handle 5 has multiple anti-slip grooves 11, and the outer wall has a smooth design. The anti-slip grooves 11 increase the friction between the hand and the handle 5, preventing the hand from slipping during handling and improving operational safety. The smooth design avoids injury to the hand from sharp edges and corners, improving grip comfort and ensuring that operators can efficiently and safely handle the fixture, contributing to the smooth operation of the entire pressure shell positioning and correction fixture.
[0045] Reference Figure 1 , Figure 2 and Figure 3 The outer walls of the two fixed columns 202 are equidistantly fixed to the front and rear sides of the fixed base 201. The horizontal positions of the two fixed columns 202 are equal. When the tooling is subjected to external impact and the buffer mechanism 2 works, the pressure borne by the fixed columns 202 can be relatively balanced. The top of the outer wall of the two fixed columns 202 is provided with a cap 14. The bottom of the two caps 14 is fixedly connected to the top of the two fixed columns 202 respectively, which can protect the top of the fixed columns 202. Multiple anti-slip grooves 11 are equidistantly opened on the top of the two handles 5. The outer wall of the multiple anti-slip grooves 11 adopts an elliptical design. When the outer wall of the circular anti-slip groove 11 comes into contact with the hand, the contact area is relatively large and the pressure is evenly distributed, which can effectively relieve hand fatigue.
[0046] Specifically, the equidistant distribution of the fixed columns 202 allows for even pressure distribution when supporting the top plate 208 structure, avoiding excessive local stress and ensuring the stability of the buffer mechanism 2 structure. The cap 14 prevents the top of the fixed columns 202 from being damaged by collisions and friction, extending their service life. The equidistant anti-slip grooves 11 can evenly distribute friction, allowing for stable gripping regardless of the operator's grip posture, reducing hand slippage and improving handling safety. The elliptical anti-slip grooves 11 reduce pressure on the skin of the hands, making it less tiring to hold for a long time. On the other hand, they fit the fingers better, further enhancing friction and improving operational comfort and stability.
[0047] Working principle: The base 1 provides core support, and the multiple round holes 3 on its top allow for precise placement of the press shell to be processed, achieving initial horizontal positioning and establishing a solid benchmark for subsequent straightening operations. Multiple mounting slots 4 on the front and rear sides of the top have handles 5 fixedly connected to the inner walls, facilitating the operator's handling of the tooling. These slots also provide installation positions. The wall plate 6 on the top left side of the base 1 not only prevents the press shell from moving excessively to the left, but its grooves 13 on the front and rear sides can also cooperate with positioning pins to further precisely fix the press shell, ensuring the accuracy of its position. The top of the base 1... The pressure plate 7 of the part, under the action of the threaded connection of the screw 8, can be flexibly controlled by the operator to raise and lower by rotating the screw 8, thereby applying pressure to the pressure shell and firmly pressing it on the base 1, effectively preventing the pressure shell from shifting during the correction process. If the device is higher than the groove 13 on the wall plate 6, it indicates that the position of the pressure shell is abnormal. At this time, it is necessary to use tools to knock it flat until it is flush with the upper surface of the wall plate 6, so as to ensure the accuracy of the pressure shell in the positioning and correction process, meet the processing requirements, ensure the efficient operation of the entire tooling in the positioning and correction of the pressure shell, and improve the work quality and efficiency.
[0048] Furthermore, when the tooling is subjected to external impact, the top plate 208 is subjected to force, which is transmitted to the rotating pull 207 through the connecting rod 3 209. The rotating pull 207 drives the connecting rod 206 to move, and the connecting rod 206 pushes the moving block 205 connected to it. Since the inner wall of the moving block 205 is slidably connected to the outer wall of the connecting rod 1 204, the moving block 205 will slide along the connecting rod 1 204, thereby compressing or stretching the springs 203 on the front and rear sides of the inner wall of the fixed seat 201. During the deformation process, the spring 203 absorbs and stores the impact energy, converting the impact force into elastic potential energy, and plays a buffering role. When the impact force decreases or disappears, the spring 203 restores its deformation, driving the moving block 205 to slide in the opposite direction, so that the entire buffer mechanism 2 returns to the initial state and prepares for the next impact. Through this process, the buffer mechanism 2 effectively reduces the damage of the impact force to other parts of the tooling and ensures the stable operation of the tooling.
[0049] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 pressure shell positioning and straightening fixture, including a base (1), characterized in that: The base (1) has multiple round holes (3) on its top. The base (1) has multiple mounting slots (4) on its front and back sides. The inner walls of the mounting slots (4) are fixedly connected to handles (5). The base (1) has a wall panel (6) fixedly connected to its top left side. The wall panel (6) has two grooves (13) on its front and back sides. The base (1) has a pressure plate (7) fixedly connected to its top center. The pressure plate (7) has a threaded screw (8) connected to its top. The base (1) has a buffer mechanism (2) at its top left end.
2. The pressure shell positioning and correction fixture according to claim 1, characterized in that: The buffer mechanism (2) includes a fixed base (201), the bottom of which is fixedly connected to the top left end of the base (1). Fixed posts (202) are fixedly connected to both the front and rear sides of the fixed base (201). Springs (203) are fixedly connected to both the front and rear sides of the inner wall of the fixed base (201). A connecting rod (204) is provided in the middle of the two springs (203). The front and rear ends of the connecting rod (204) are fixedly connected to the front and rear sides of the inner wall of the fixed base (201), respectively. A moving block (2) is fixedly connected to one adjacent end of each of the two springs (203). 05), the inner walls of the two movable blocks (205) are slidably connected to the outer wall of the connecting rod one (204), and the adjacent sides of the two movable blocks (205) are fixedly connected to the connecting rod two (206). The adjacent two connecting rod two (206) are rotatably connected to the rotating drawer (207). The top of the outer wall of the two fixed columns (202) is fixedly connected to the top plate (208), and the bottom left and right sides of the top plate (208) are fixedly connected to the connecting rod three (209). The adjacent two connecting rod three (209) are rotatably connected to the left and right sides of the outer wall of the rotating drawer (207).
3. The pressure shell positioning and correction fixture according to claim 1, characterized in that: The top left and right sides of the two handles (5) are provided with grooves (9), and the inner walls of the two grooves (9) are provided with screws (10).
4. The pressure shell positioning and correction fixture according to claim 3, characterized in that: The inner walls of the multiple mounting slots (4) are provided with threaded holes (12), and the inner walls of the multiple threaded holes (12) are threadedly connected to the outer wall of the screw (10).
5. The pressure shell positioning and correction fixture according to claim 1, characterized in that: The top of the two handles (5) is provided with multiple anti-slip grooves (11), and the outer walls of the multiple anti-slip grooves (11) are all designed with a smooth surface.
6. The pressure shell positioning and correction fixture according to claim 2, characterized in that: The outer walls of the two fixed columns (202) are fixedly connected to the front and rear sides of the fixed base (201) at equal distances, and the horizontal positions of the two fixed columns (202) are equal.
7. The pressure shell positioning and straightening fixture according to claim 2, characterized in that: The top of the outer wall of each of the two fixed columns (202) is provided with a cap (14), and the bottom of the two caps (14) is fixedly connected to the top of the two fixed columns (202) respectively.
8. The pressure shell positioning and straightening fixture according to claim 5, characterized in that: Multiple anti-slip grooves (11) are equidistantly provided on the top of the two handles (5), and the outer walls of the multiple anti-slip grooves (11) are elliptical.
Citation Information
Patent Citations
Pressing tooling
CN105921979B