Punching device

Abstract

This utility model discloses a stamping device, relating to the field of relay processing technology. The stamping device, used to mount a relay frame, includes a base, a pressure plate, and a punch. The base has a movable clamping seat for clamping the relay body. The pressure plate is movably mounted on the base and moves along a direction perpendicular to the base. The punch is located on the side of the pressure plate facing the base and can move closer to or further away from the clamping seat. In the technical solution provided by this utility model, the pressure plate drives the punch to descend and stamp the portion of the lower iron frame located above the upper iron frame. This causes the structure to deform upon impact, thereby pressing the hole that mates with the upper iron frame, thus achieving the installation of the upper and lower iron frames. This avoids the problems of surface blackening and gaps between iron frames, which can easily lead to magnetic leakage, that can occur with laser welding.

Description

Technical Field

[0001] This utility model relates to the field of relay processing technology, and in particular to a stamping device. Background Technology

[0002] The double-frame structure of a relay typically consists of an upper frame and a lower frame, which are connected together in a specific way to form one of the core components of the relay.

[0003] In traditional processes, the connection of double iron frames mainly relies on laser welding. However, this method has many drawbacks, such as blackening of the welded surface and gaps between the iron frames leading to magnetic leakage, which in turn affects the relay's performance. Furthermore, laser welding can cause deformation of the iron frames, increasing the defect rate and production costs. Therefore, developing a new double iron frame connection process and tooling to improve connection strength, ensure coaxiality, and reduce production costs has become an urgent technical problem to be solved in the relay manufacturing industry. Utility Model Content

[0004] The main purpose of this invention is to provide a stamping device that avoids the use of laser welding to achieve a reliable connection between the upper and lower iron frames of a relay.

[0005] To achieve the above objectives, the present invention proposes a stamping device for mounting a relay iron frame, comprising:

[0006] The base is provided with a movable clamping seat, which is used to clamp the relay body;

[0007] A pressure plate, movably mounted on the base, and movable in a direction perpendicular to the base; and

[0008] A punch is located on the side of the pressure plate facing the base, and the punch can be close to or away from the clamping seat.

[0009] In one embodiment, the stamping device includes two punches, each punch including at least two tips, each tip being disposed on the side of the punch facing the base, and the tips being spaced apart.

[0010] In one embodiment, the stamping device further includes a first clamping assembly disposed on the side of the pressure plate facing the base, the first clamping assembly including two clamping members.

[0011] In one embodiment, the stamping device further includes a second clamping assembly, the second clamping assembly comprising:

[0012] The first guide rail is disposed on the base and extends in a direction perpendicular to the movement direction of the clamping seat;

[0013] Two sliders are respectively disposed on both sides of the clamping seat, and each slider is provided with a first guide slope that faces away from the clamping seat and is inclined upwards; and

[0014] Two guide blocks are provided on the pressure plate, and each of the two guide blocks is provided with a second guide slope, and each first guide slope abuts against a second guide slope.

[0015] In one embodiment, the base is provided with a second guide rail, and the clamping seat is slidably disposed on the second guide rail;

[0016] The stamping device also includes a first cylinder, the extended end of which is connected to the clamping seat.

[0017] In one embodiment, the stamping device further includes a positioning structure, the positioning structure comprising:

[0018] A positioning assembly includes a positioning cylinder and a movable rod. The movable rod movably passes through the positioning cylinder and is coaxially arranged with the positioning cylinder. The positioning cylinder has a positioning ring, a portion of which abuts against the outer peripheral wall of the movable rod. The side of the positioning ring facing away from the movable rod is exposed on the outer side of the positioning cylinder. The positioning cylinder has an axially oriented channel, and the movable rod is movably disposed within the channel.

[0019] The second cylinder has its extended end connected to one end of the movable rod, and is used to drive the movable rod to move relative to the positioning cylinder.

[0020] In one embodiment, the positioning cylinder forms a circumferential groove, the groove being at least partially connected to the channel, and the positioning ring being movably disposed in the groove.

[0021] In one embodiment, the end of the movable rod away from the positioning ring is provided with an annular boss, and the annular boss is located outside the channel;

[0022] The positioning assembly also includes a reset member, which is sleeved on the movable rod, and the two ends of the reset member abut against the annular boss and the positioning cylinder, respectively.

[0023] In one embodiment, the extended end of the second cylinder is provided with an abutment member, the abutment member having an abutment surface on the side facing the positioning cylinder, the abutment surface including a first straight surface, an inclined surface and a second straight surface connected in sequence, the distance between the first straight surface and the movable rod is greater than the distance between the second straight surface and the movable rod, and the abutment surface abuts against the end of the movable rod.

[0024] In one embodiment, a rolling element is provided at one end of the movable rod near the abutting member, and the rolling element rolls against the abutting surface.

[0025] This utility model proposes a stamping device for installing the upper and lower iron frames of a relay. The stamping device includes a base, a pressure plate, and a punch. The base has a movable clamping seat for holding the relay body. The pressure plate is movably mounted on the base and moves perpendicular to it. The punch is located on the side of the pressure plate facing the base. Specifically, two pre-assembled upper and lower iron frames are fixed in the clamping seat. The pressure plate drives the punch to descend and stamp the portion of the lower iron frame above the upper iron frame, causing this portion to deform upon impact, thereby pressing the hole that mates with the upper iron frame and achieving the installation of the upper and lower iron frames. By using the stamping device proposed in this application to install the relay iron frames, the method of laser welding is avoided, which results in surface blackening, gaps between the iron frames, and potential magnetic leakage, affecting relay performance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of an embodiment of the stamping device provided by this utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of one embodiment of the punch;

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of one embodiment of the first clamping component;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of one embodiment of the second clamping component;

[0031] Figure 5 This is a schematic diagram of one embodiment of the clamping seat;

[0032] Figure 6 A schematic diagram of the structure in which the positioning structure and the first clamping component are fitted together;

[0033] Figure 7 for Figure 1 A schematic diagram of one embodiment of the positioning structure;

[0034] Figure 8 for Figure 7 A schematic diagram of the structure in which the positioning component and the driving component work together;

[0035] Figure 9 This is a sectional view of the positioning structure;

[0036] Figure 10 This is a schematic diagram of a relay.

[0037] Explanation of icon numbers:

[0038] 100. Stamping device; 1. Base; 11. Guide post; 2. Pressure plate; 21. Guide sleeve; 3. Punch; 31. Tip; 4. Clamping assembly; 41. Clamping seat; 411. Clamping space; 42. Second guide rail; 43. First cylinder; 5. First clamping assembly; 51. Mounting seat; 511. Mounting hole; 52. Clamping element; 6. Second clamping assembly; 61. First guide rail; 62. Slider; 621. First guide slope; 63. Guide block; 631. Second guide ramp; 7. Positioning structure; 71. Positioning component; 711. Positioning cylinder; 711a. Channel; 711b. Annular groove; 712. Movable rod; 713. Positioning ring; 714. Reset component; 715. Rolling component; 72. Second cylinder; 721. Second cylinder; 722. Abutting component; 7221. Abutting surface; 7221a. First straight surface; 7221b. Rammed surface; 7221c. Second straight surface; 73. Base plate.

[0039] 200, Relay; 210, Upper iron frame; 211, Protrusion; 220, Lower iron frame; 230, Cylindrical core; 230a, Inner hole.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] 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 scope of protection of the present utility model.

[0042] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] In traditional processes, the connection of double iron frames mainly relies on laser welding. However, this method has many drawbacks, such as blackening of the welded surface and gaps between the iron frames leading to magnetic leakage, which in turn affects the performance of the relay 200. Furthermore, laser welding can also cause deformation of the iron frames, increasing the defect rate and production costs. Therefore, developing a new double iron frame connection process and tooling to improve connection strength, ensure coaxiality, and reduce production costs has become an urgent technical problem to be solved in the relay 200 manufacturing field.

[0045] To address the aforementioned problems, this utility model proposes a stamping device 100, which aims to provide a stamping device 100 that avoids the use of laser welding to achieve a reliable connection between the upper and lower iron frames 220 of the relay 200. Figures 1 to 10 This is a schematic diagram of an embodiment of the stamping device 100 of this utility model.

[0046] Please refer to Figures 1 to 10 This utility model proposes a stamping device 100, including a base 1, a pressure plate 2 and a punch 3. The base 1 is provided with a movable clamping seat 41, which is used to clamp the body of the relay 200. The pressure plate 2 is movably disposed on the base 1 and moves in a direction perpendicular to the base 1. The punch 3 is disposed on the side of the pressure plate 2 facing the base 1, and the punch 3 can move closer to or away from the clamping seat 41.

[0047] It is understandable that the pressure plate 2 will be installed on the moving end of the hydraulic equipment, so that it will start to move relative to the base 1 under the driving action of the hydraulic equipment. In order to guide the pressure plate 2, the base 1 is provided with guide post 11 on the side facing the pressure plate 2, and the pressure plate 2 is provided with guide sleeve 21 accordingly. The guidance is achieved by the cooperation of four guide post 11 and four guide sleeve 21.

[0048] The present invention provides a stamping device 100 for installing the upper iron frame 210 and lower iron frame 220 of a relay 200. The stamping device 100 includes a base 1, a pressure plate 2, and a punch 3. The base 1 is provided with a movable clamping seat 41, which is slidably mounted on a second guide rail 42 and connected to the telescopic end of a first cylinder 42. The clamping seat 41 is used to clamp the body of the relay 200. The pressure plate 2 is movably mounted on the base 1 and along... The punch 3 moves in the direction of the vertical base 1, and is located on the side of the pressure plate 2 facing the base 1. Specifically, the two pre-assembled upper iron frame 210 and lower iron frame 220 are fixed in the clamping space 411 of the clamping seat 41. The pressure plate 2 drives the punch 3 to descend and punch the part of the lower iron frame 220 that is above the upper iron frame 210, so that this part of the structure deforms after being impacted, thereby squeezing the hole that mates with the upper iron frame 210, and realizing the installation of the upper iron frame 210 and the lower iron frame 220. By using the punching device 100 proposed in this application to realize the installation of the iron frame of the relay 200, the method of laser welding is avoided, which will cause the surface to turn black, and there will be gaps between the iron frames, which will easily generate magnetic leakage and affect the performance of the relay 200.

[0049] It is understood that the lower iron frame 220 has two protrusions that pass through two corresponding square holes in the upper iron frame 210 and are partially exposed above the upper surface of the upper iron frame 210. For details, please refer to further documentation. Figure 10 The stamping device 100 uses the punch 3 to act on the two protruding structures of the lower iron frame 220, namely the protrusions 211, so that the protrusions 211 deform under the impact force, so that the length or width of the protrusions 211 is greater than the length or width of the two square holes of the upper iron frame 210, thereby enabling the upper iron frame 210 and the lower iron frame 220 to achieve a reliable connection.

[0050] By providing two punches 3 in the stamping device 100, each punch 3 comprising at least two tips 31, for details please refer to further reading. Figure 2These pointed tips 31 are located on the side of the punch 3 facing the base 1 and are spaced apart from each other. During the stamping process, the punch 3 moves towards the base 1 under the drive of the pressure plate 2. When the punch 3 contacts the lower iron frame 220, the pointed tips 31 act precisely on specific positions on the lower iron frame 220. Due to the spaced arrangement of the pointed tips 31, they can form multiple deformation points on the lower iron frame 220. These deformation points deform under the stamping pressure, thereby squeezing the hole that mates with the upper iron frame 210, achieving a tight connection between the upper iron frame 210 and the lower iron frame 220. This design is based on mechanical principles. Through the stamping action of multiple pointed tips 31, the stamping pressure can be distributed more evenly, ensuring the stability and reliability of the connection. Compared with traditional laser welding, this stamping method avoids problems such as surface blackening, magnetic leakage due to gaps between iron frames, and deformation of the iron frame that may occur during welding, improving the performance and quality of the relay 200, while also reducing production costs and defect rates.

[0051] To ensure the stability and accuracy of the relay 200 iron frame during the stamping process, the stamping device 100 also includes a first clamping assembly 5. For details, please refer to further details. Figure 3 The first clamping assembly 5 is located on the side of the pressure plate 2 facing the base 1. Specifically, the first clamping assembly 5 is installed on the side of the pressure plate 2 facing the base 1. This assembly includes a mounting base 51 and two clamping members 52. The mounting base 51 is located on the pressure plate 2, and the two clamping members 52 are located on the mounting base 51. When the pressure plate 2 moves downward, the two clamping members 52 first contact the upper iron frame 210 of the relay 200. By applying a certain pressure, the upper iron frame 210 is firmly fixed on the clamping seat 41, preventing the iron frame from shifting or shaking during the stamping process. This process is based on the principle of pressure fixing in mechanics. Sufficient pressure is applied to the iron frame by the clamping members 52 to overcome the reaction force generated during the stamping process, ensuring the stability of the iron frame during the stamping process. The advantage of this design is that it improves the accuracy and quality of stamping, avoids inaccurate stamping or damage to the iron frame caused by the movement of the iron frame, thereby ensuring the reliability and consistency of the iron frame connection of the relay 200.

[0052] To further improve the stability during the connection process between the upper iron frame 210 and the lower iron frame 220, and to fix the lower iron frame 220 and prevent it from moving horizontally, the stamping device 100 also includes a second clamping assembly 6, which can position the lower iron frame 220 in the lateral direction. For details, please refer to further documentation. Figure 4The specific implementation is as follows: A first guide rail 61 is provided on the base 1, extending in a direction perpendicular to the movement direction of the clamping seat 41. Slider blocks 62 are provided on both sides of the clamping seat 41, and these sliders 62 have a first guide slope 621 facing away from the clamping seat 41 and inclined upwards. When the pressure plate 2 moves downwards, two guide blocks 63 on the pressure plate 2 abut against the first guide slope 621 on the sliders 62. The guide blocks 63 have a second guide slope 631. Due to the slope design, when the pressure plate 2 continues to press down, the guide blocks 63 push the sliders 62 closer to or further away from each other along the first guide rail 61, thereby achieving lateral clamping or loosening of the iron frame 210 on the clamping seat 41. Utilizing the interaction between the slopes, the vertical movement of the pressure plate 2 is converted into the horizontal movement of the sliders 62, achieving precise lateral positioning and clamping of the iron frame. The advantage of this design is that it improves the accuracy and stability of stamping, especially when dealing with iron frames with complex shapes or large sizes. It can effectively prevent the iron frame from shifting laterally during the stamping process, thereby ensuring the reliability and consistency of the relay 200 iron frame connection, while also improving production efficiency and product quality.

[0053] In the stamping device 100, the second clamping assembly 6 is designed to further ensure the stability and accuracy of the relay 200 iron frame during the stamping process, especially in terms of the lateral positioning of the iron frame. Specifically, it is implemented as follows: A first guide rail 61 is provided on the base 1, extending perpendicular to the direction of movement of the clamping seat 41. Slider blocks 62 are provided on both sides of the clamping seat 41, and these sliders 62 have a first guide slope 621 facing away from the clamping seat 41 and inclined upwards. When the pressure plate 2 moves downwards, two guide blocks 63 on the pressure plate 2 abut against the first guide slope 621 on the sliders 62. The guide blocks 63 have a second guide slope 631. Due to the slope design, when the pressure plate 2 continues to press down, the guide blocks 63 push the sliders 62 closer to or further away from each other along the first guide rail 61, thereby achieving lateral clamping or loosening of the iron frame 210 on the clamping seat 41. This process is based on the principle of inclined planes. By utilizing the interaction between the inclined planes, the vertical movement of the pressure plate 2 is converted into the horizontal movement of the slider 62, achieving precise lateral positioning and clamping of the iron frame. The advantage of this design is that it improves the accuracy and stability of stamping. Especially when dealing with iron frames with complex shapes or large sizes, it can effectively prevent lateral displacement of the iron frame during stamping, thereby ensuring the reliability and consistency of the iron frame connection of the relay 200, while also improving production efficiency and product quality.

[0054] In the stamping device 100, in order to ensure the positioning accuracy of the upper iron frame 210 and the lower iron frame 220 and to ensure the accuracy of their installation positions, the stamping device 100 also includes a positioning structure 7. The positioning structure 7 is disposed on the base plate 73, which is disposed on the side of the pressure plate 2 facing the base 1. The positioning structure 7 includes a positioning component 71 and a second cylinder 721. The positioning component 71 includes a positioning cylinder 711 and a movable rod 712. The positioning cylinder 711 is movably inserted into the mounting hole 511 of the mounting base 51. The movable rod 712 is movably inserted into the positioning cylinder 711 and is coaxially arranged with the positioning cylinder 711. The positioning cylinder 711 is provided with a positioning ring 713, which is accommodated in the annular groove 711b on the positioning cylinder 711. Part of the structure of the positioning ring 713 abuts against the outer peripheral wall of the movable rod 712. The side of the positioning ring 713 facing away from the movable rod 712 is exposed on the outside of the positioning cylinder 711. The second cylinder 721 is used to drive the movable rod 712 to move within the positioning cylinder 711. During the positioning operation of the two iron frames of relay 200, the positioning cylinder 711 is inserted into the holes of the iron frame and the cylindrical core 230 respectively, so that the iron frame and the cylindrical core 230 are coarsely positioned. When the positioning cylinder 711 is in place, the second cylinder 721 drives the movable rod 712 to move downward until the movable rod 712 abuts against the inner side wall of the positioning ring 713, so that the positioning ring 713 moves radially along the positioning cylinder 711. Since the outer peripheral wall of the positioning ring 713 is in contact with the inner peripheral wall of the hole of the cylindrical core 230, the movement of the positioning ring 713 will drive the cylindrical core 230 to move, thereby achieving secondary positioning, further improving the fitting accuracy of the iron frame and the cylindrical core 230, and ensuring that their coaxiality meets the corresponding requirements.

[0055] During the positioning of relay 200, upper iron frame 210 and lower iron frame 220 are pre-assembled, and there is still a certain movable gap between them. The pre-assembled upper iron frame 210 and lower iron frame 220 are installed on the clamping seat 41 of the stamping device 100. The clamping seat will fix the upper iron frame 210, while the lower iron frame 220 can still move relative to the upper iron frame 210. After that, the pressure plate 2 on the equipment drives the positioning structure 7 to move downward until the positioning cylinder 711 on the positioning component 71 passes through the upper iron frame 210 and is inserted into the inner hole 230aa of the cylindrical core 230. At this time, the coarse positioning of the upper iron frame 210 and the cylindrical core 230 is achieved, and the positions of the upper iron frame 210, the cylindrical core 230 and the lower iron frame 220 are adjusted, and the three tend to be coaxial. Furthermore, the second cylinder 721 drives the movable rod 712 to move downward until the movable rod 712 abuts against the inner contact surface of the positioning ring 713, thereby driving the positioning ring 713 to move radially along the positioning cylinder 711. Since the outer contact surface of the positioning ring 713 is in close fit with the inner wall of the inner hole 230aa of the cylindrical core 230, under the drive of the movable rod 712, the positioning ring 713 drives the cylindrical core 230 and the lower iron frame 220 to move to the preset assembly position, ensuring that the coaxiality between the upper iron frame 210 and the cylindrical core 230 meets the product requirements.

[0056] After the second cylinder 721 drives the movable rod 712 to descend, the movable rod 712 needs to be reset so that subsequent repeatable operations can be performed. Therefore, the end of the movable rod 712 furthest from the positioning ring 713 is provided with an annular boss, which is located outside the channel 711a of the positioning cylinder 711. The positioning assembly 71 also includes a reset member 714 sleeved on the movable rod 712, whose two ends respectively abut against the annular boss and the positioning cylinder 711. For details, please refer to further reading. Figure 8 and Figure 9 The elastic force of the reset component 714 allows the movable rod 712 to automatically return to its initial position after completing the positioning operation, preparing it for the next positioning operation. This improves the repeatability and consistency of positioning operations, ensures accuracy in each positioning, reduces manual intervention, and increases production efficiency. Furthermore, the reset component 714 provides cushioning during the movement of the movable rod 712, reducing equipment wear and extending its service life, thereby improving product quality while reducing maintenance costs.

[0057] In one embodiment of this application, the telescopic end of the second cylinder 721 is provided with an abutment member 722. For details, please refer to further details. Figure 9 The extension and retraction direction of the cylinder is perpendicular to the axis of the positioning cylinder 711. When the cylinder extends and retracts, the abutment member 722 at the movable end also moves accordingly, driving the movable rod 712 to rise and fall. Specifically, the abutment surface 7221 of the abutment member 722 includes a first straight surface 7221a, an inclined surface 7221b, and a second straight surface 7221c connected in sequence. When the movable end of the cylinder extends, the first straight surface 7221a of the abutment member 722 first contacts the end of the movable rod 712. As the cylinder continues to push, the inclined surface gradually guides the movable rod 712 downward, and finally the second straight surface 7221c abuts against the movable rod 712, completing the positioning action of the movable rod 712. This design, through the transition effect of the inclined surface, enables the movable rod 712 to move smoothly and gradually, avoiding uneven force or damage to the movable rod 712 due to direct hard contact, thereby improving the positioning accuracy and reliability, reducing equipment wear, extending service life, and improving the overall performance and stability of the relay 200 machining positioning device.

[0058] In the first embodiment, to reduce the frictional resistance between the abutment 722 and the movable rod 712, a rolling element 715 is provided at the end of the movable rod 712 near the abutment 722, and it rolls against the abutment surface 7221. This design can significantly reduce the frictional force between the movable rod 712 and the abutment 722. When the rolling element 715 rolls on the abutment surface 7221 (including the first straight surface 7221a, the inclined surface 7221b, and the second straight surface 7221c), it can guide the movement of the movable rod 712 more smoothly and steadily, avoiding wear and jamming problems caused by sliding friction. This rolling contact method not only improves the flexibility and accuracy of the movement of the movable rod 712, but also extends the service life of the movable rod 712 and the abutment 722, further improving the reliability and stability of the entire relay 200 machining and positioning device, and ensuring the efficient and accurate completion of the positioning operation.

[0059] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A stamping device for mounting a relay iron frame, characterized in that, include: The base is provided with a movable clamping seat, which is used to clamp the relay body; The pressure plate is movably mounted on the base and moves in a direction perpendicular to the base; as well as A punch is located on the side of the pressure plate facing the base, and the punch can be close to or away from the clamping seat.

2. The stamping apparatus of claim 1, wherein The stamping device includes two punches, each punch having at least two tips, each tip being located on the side of the punch facing the base, and the tips being spaced apart.

3. The stamping apparatus of claim 2, wherein, The stamping device further includes a first clamping assembly, which is located on the side of the pressure plate facing the base, and the first clamping assembly includes two clamping members.

4. The stamping apparatus of claim 2, wherein The stamping device further includes a second clamping assembly, the second clamping assembly comprising: The first guide rail is disposed on the base and extends in a direction perpendicular to the movement direction of the clamping seat; Two sliders are respectively disposed on both sides of the clamping seat. Each slider has a first guide slope that faces away from the clamping seat and is inclined upwards. The two sliders can move closer to or further away from each other. Two guide blocks are provided on the pressure plate, and each of the two guide blocks is provided with a second guide slope, and each first guide slope abuts against a second guide slope.

5. The stamping apparatus of any one of claims 1 to 4, wherein, The base is provided with a second guide rail, and the clamping seat is slidably disposed on the second guide rail; The stamping device also includes a first cylinder, the extended end of which is connected to the clamping seat.

6. The stamping apparatus of any one of claims 1 to 4, wherein, The stamping device further includes a positioning structure, the positioning structure comprising: A positioning assembly includes a positioning cylinder and a movable rod. The movable rod movably passes through the positioning cylinder and is coaxially arranged with the positioning cylinder. The positioning cylinder has a positioning ring, a portion of which abuts against the outer peripheral wall of the movable rod. The side of the positioning ring facing away from the movable rod is exposed on the outer side of the positioning cylinder. The positioning cylinder has an axially oriented channel, and the movable rod is movably disposed within the channel. The second cylinder has its extended end connected to one end of the movable rod, and is used to drive the movable rod to move relative to the positioning cylinder.

7. The stamping apparatus of claim 6, wherein The positioning cylinder forms a circumferential groove, which is at least partially connected to the channel, and the positioning ring is movably disposed in the groove.

8. The stamping apparatus of claim 6, wherein, The movable rod has an annular boss at the end away from the positioning ring, and the annular boss is located outside the channel; The positioning assembly also includes a reset member, which is sleeved on the movable rod, and the two ends of the reset member abut against the annular boss and the positioning cylinder, respectively.

9. The stamping apparatus of claim 6, wherein, The extended end of the second cylinder is provided with an abutment, and the abutment has an abutment surface on the side facing the positioning cylinder. The abutment surface includes a first straight surface, an inclined surface and a second straight surface connected in sequence. The distance between the first straight surface and the movable rod is greater than the distance between the second straight surface and the movable rod. The abutment surface abuts against the end of the movable rod.

10. The stamping apparatus of claim 9, wherein, The movable rod has a rolling element at one end near the abutting member, and the rolling element rolls against the abutting surface.

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