A stamping line

Abstract

The present application provides a kind of stamping production line, including at least two stamping equipment, each corresponding stamping equipment is provided with a transfer device, each transfer device is adjacent to its own corresponding stamping equipment, characterized in that: the upper portion of each stamping equipment is connected together by rigid connection structure, and each stamping equipment is detachably connected with rigid connection structure, each transfer device is installed on the rigid connection structure.Compared with the prior art, the advantages of the present application are: 1, the stamping production line connects each stamping equipment together by rigid connection structure, to transfer the vibration generated by any stamping equipment to the remaining stamping equipment, so that the vibration between each stamping equipment is offset, and the precision of the transfer device can be ensured;2, each stamping equipment and rigid connection structure are detachably connected, and one or more stamping equipment can be arbitrarily disassembled for maintenance.

Description

Technical Field

[0001] This invention relates to the field of stamping machinery and equipment technology, and in particular to a stamping production line using a transfer device. Background Technology

[0002] Stamping is a forming process that applies external force to sheet metal, profiles, etc., to cause plastic deformation or separation, thereby obtaining workpieces of the desired shape and size. In production, multiple stamping machines are often connected to form a production line for multi-station stamping. Traditional stamping production lines require operators to transfer workpieces to the next stamping machine, i.e., to the next workstation for processing. This manual operation method results in low production and management efficiency for traditional stamping production lines, and also presents problems such as high workload for operators and high safety hazards.

[0003] Therefore, existing technologies include stamping production lines such as the one disclosed in patent number ZL201822113307.9, "An Automatic Stamping Production Line," or the one disclosed in patent number ZL202121014552.X, "An Automatic Stamping Production Line." These stamping production lines are equipped with transfer devices such as robotic arms and four-axis robots near each stamping machine. These transfer devices move workpieces to the next workstation, increasing the automation level of the stamping production line, thereby improving production and management efficiency, and reducing the workload and safety hazards of operators.

[0004] However, the aforementioned improvements have led to the following problems: First, currently, the transfer device is usually placed on the ground, requiring the stamping production line to occupy more floor space. This not only increases space costs but also hinders the movement of operators or intelligent equipment such as logistics carts. However, if the transfer device is placed on the stamping equipment, the vibration generated during operation will reduce the accuracy of the transfer device, causing significant errors and even making it difficult to complete the transfer correctly, leading to damage to the workpiece, the transfer device, and even the stamping equipment. Second, if the transfer device is placed on the stamping equipment, and the stamping equipment malfunctions and needs to be moved to another location for repair, the transfer device must be moved along with it or disassembled. Moving it along with the transfer device may damage it and reduce the accuracy of subsequent operations. Disassembling the transfer device requires additional space for storage, and considering the accuracy requirements, both disassembly and reinstallation are inconvenient. In conclusion, further improvements to the existing technology are still needed. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a stamping production line that can ensure the accuracy of the transfer device while setting the transfer device to the stamping equipment, in view of the above-mentioned existing technology.

[0006] The second technical problem to be solved by the present invention is to provide a stamping production line that can move the stamping equipment independently for maintenance without disassembling and reinstalling the transfer device, in view of the above-mentioned existing technology.

[0007] The technical solution adopted by the present invention to solve the first technical problem is as follows: the stamping production line includes at least two stamping machines, each stamping machine is provided with a corresponding transfer device, and each transfer device is arranged adjacent to its corresponding stamping machine. The feature is that the upper parts of each stamping machine are connected together by a rigid connection structure, and each stamping machine and the rigid connection structure are detachably connected, and each transfer device is installed on the rigid connection structure.

[0008] To address the second technical problem mentioned above, preferably, the rigid connection structure is a crossbeam with a first connecting portion and a second connecting portion on the upper part of each of the stamping devices. The first and second connecting portions are correspondingly arranged and detachably connected by a connector. Thus, when the stamping device needs to be moved, only its corresponding connector needs to be removed to individually detach the stamping device from the crossbeam. After maintenance, it can be reinstalled in its original position. This structure allows for the arbitrarily disassembly of one or more stamping devices. Furthermore, since the transfer device is mounted on the rigid connection structure, there is no need to process the transfer device when moving the stamping device, avoiding the cumbersome steps such as calibration and reprogramming required for reinstalling the transfer device, thus facilitating the inspection and maintenance of the stamping device.

[0009] To facilitate the connection of the stamping equipment to the crossbeam, the crossbeam is preferably located on top of each of the stamping equipment. In practical applications, the crossbeam can be located above or to the side of each stamping equipment, as long as it allows for the detachable connection of the stamping equipment.

[0010] Preferably, the crossbeam comprises two spaced-apart beams, and at least two mounting beams are provided on the crossbeams. Each mounting beam is connected to both crossbeams, and each transfer device is mounted on its corresponding mounting beam. Compared to using a single, large-area plate as the crossbeam, the structure using two crossbeams reduces the load on each stamping device while ensuring the overall strength of the crossbeam. Furthermore, the mounting beams facilitate the installation of the transfer devices, which are independently connected to the stamping equipment on the crossbeams, allowing for individual inspection and maintenance without mutual interference.

[0011] To reduce vibration of the stamping equipment, preferably, a base plate is also included for placing each of the stamping devices. At least two limiting mechanisms are provided on the base plate corresponding to each stamping device. The base plate connects the lower parts of each stamping device, while the upper parts of each stamping device are connected by crossbeams, forming a closed frame structure between any two adjacent stamping devices. This not only transmits and cancels out vibrations but also increases the overall structural strength, stability, and resistance to deformation, limiting the degrees of freedom of the stamping devices to reduce the possibility of swaying or tilting.

[0012] To facilitate the positioning of the stamping equipment on the base plate, preferably, the lower part of the stamping equipment is provided with at least two placement portions, and the positioning mechanism is provided one-to-one with each placement portion. Each positioning mechanism includes a positioning member that limits the placement portion along the length and / or width direction of the stamping equipment. By limiting the placement portion along the width and / or length direction of the corresponding stamping equipment, the positioning member has the following two functions: First, considering the stamping production line as a whole, as mentioned above, connecting the various stamping equipment allows the vibration energy generated by any stamping equipment to be transmitted to the other stamping equipment, thereby canceling each other out and protecting the transfer device set on the stamping equipment from the influence of vibration; Second, considering a single stamping equipment, it is similar to restricting its degrees of freedom along the "width direction" and "length direction," changing the natural frequency of the stamping equipment and introducing additional resistance, thereby reducing the possibility of vibration.

[0013] In order to enable the limiting member to limit the placement part in the width direction of the stamping equipment, preferably, the limiting mechanism includes a first seat and a second seat, and the limiting member is provided on both the first seat and the second seat, so that the first seat can limit the placement part in the width direction of the stamping equipment, and the second seat can limit the placement part in the length direction of the stamping equipment, and the limiting member can move towards or away from the placement part.

[0014] As a solution to avoid the limiting mechanism interfering with the movement of the stamping equipment, there is a first distance D1 between the first base and the placement part, and a second distance D2 between one side of the second connecting part and the other side of the first connecting part corresponding to the second connecting part. The first distance D1 and the second distance D2 satisfy: D1>D2; the height difference H1 between the bottom of the placement part and the top of the first base and the length L1 of the second connecting part satisfy: L1>H1; and the length L2 of the first connecting part satisfies: L2>H1. When moving the stamping equipment, the limiting mechanism needs to limit each placement part, so the first and second seats will overlap with the placement parts in height, making it impossible for the stamping equipment to move directly laterally. Also, because the first connecting part interferes with the second connecting part, the stamping equipment to be moved cannot be lifted directly upwards. Therefore, the relationship between the first distance D1 between the first seat and the placement part and the second distance D2 between one side of the second connecting part and the other side of the first connecting part corresponding to the second connecting part is defined as D1>D2. At the same time, the relationship between the height difference H1 between the bottom of the placement part and the top of the first seat and the length L1 of the second connecting part and the length L2 of the first connecting part is defined as L1>H1 and L2>H1. This allows the stamping equipment to move laterally a suitable distance to make the second connecting part and the first connecting part offset from each other, and then be lifted upwards to avoid the interference of the first and second seats before moving laterally out.

[0015] As another solution to avoid interference from the limiting mechanism on the movement of the stamping equipment, there is a gap H2 between the first connecting part and the second connecting part. The height difference H1 between the bottom of the placement part and the top of the first seat and the gap H2 satisfy the condition: H2 > H1. This solution, as another way to move the stamping equipment, involves the relationship between the height difference H1 between the bottom of the placement part and the top of the first seat and the gap H2 as: H2 > H1. This allows the stamping equipment to be lifted directly upwards without interference from the first connecting part. After being lifted upwards a certain distance to avoid interference from the first and second seats, the stamping equipment can be moved laterally out.

[0016] To further reduce the vibration of the stamping equipment, preferably, a vibration damping component is provided between the base plate and the placement part. The vibration damping component includes a hardening layer and a damping layer disposed below the hardening layer. The hardening layer is usually made of metal and is used to directly contact the placement part, which can enhance the structural rigidity of the vibration damper and prevent excessive deformation. The damping layer is usually made of rubber, silicone, and other composite materials, and is used to suppress the vibration of the stamping equipment.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. This stamping production line connects various stamping equipment together through a rigid connection structure, so as to transmit the vibration generated by any stamping equipment to the other stamping equipment, so that the vibration between the stamping equipment cancels out, thereby ensuring the accuracy of the transfer device.

[0019] 2. Each stamping device is detachably connected to the rigid connection structure, allowing for the disassembly of one or more stamping devices for inspection and maintenance. 3. Each transfer device is installed on the rigid connection structure connecting the stamping devices, eliminating the need for additional ground space and preventing the transfer devices from obstructing the movement of personnel or intelligent equipment such as logistics carts. Furthermore, the installation of the transfer devices on the rigid connection structure avoids the cumbersome steps of disassembling and reassembling the transfer devices when moving the stamping devices, thus facilitating the inspection and maintenance of the stamping devices. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the stamping production line in Embodiment 1 of the present invention;

[0021] Figure 2 This is a top view of the stamping equipment and fixing mechanism in Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the stamping production line from another angle in Embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the placement part of the reference stamping equipment in Embodiment 1 of the present invention;

[0024] Figure 5 This is an exploded structural diagram of the placement part, vibration damping component, and leveling stud in Embodiment 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the stamping equipment in its initial state in Embodiment 1 of the present invention;

[0026] Figure 7 This is a schematic diagram of the stamping equipment in the first moving state in Embodiment 1 of the present invention;

[0027] Figure 8 This is a schematic diagram of the stamping equipment in the second moving state in Embodiment 1 of the present invention;

[0028] Figure 9 This is a schematic diagram of the stamping equipment in its initial state in Embodiment 2 of the present invention;

[0029] Figure 10 This is a schematic diagram of the stamping equipment in the upward-lifted state in Embodiment 2 of the present invention. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to specific embodiments. Example

[0031] like Figures 1-8 The diagram shows a preferred embodiment of the present invention. The stamping production line in this embodiment includes four stamping machines 1, each arranged sequentially along its length. Each stamping machine 1 is equipped with a corresponding transfer device 2. Each transfer device 2 is located adjacent to its corresponding stamping machine 1. In this embodiment, each transfer device 2 is a robotic arm, which can transfer the workpiece to be processed to the next stamping machine 1.

[0032] In this embodiment, the upper parts of each stamping device 1 are connected together by a rigid connection structure, and the connection between each stamping device 1 and the rigid connection structure is detachable. Each transfer device 2 is mounted on the rigid connection structure. This rigid connection structure can transmit the vibration generated by any stamping device 1 to the other stamping devices 1, so that the vibrations between each stamping device 1 cancel each other out, thereby ensuring the accuracy of the transfer device 2. Specifically, see... Figure 3 The rigid connection structure is a crossbeam 3, which is located on top of each stamping device 1. A first connecting part 31 is provided on the crossbeam 3, and a second connecting part 11 is provided on the upper part of each stamping device 1. The first connecting part 31 and the second connecting part 11 are correspondingly arranged and detachably connected by connecting pieces 4. This detachable connection means that when any one or more stamping devices 1 need to be moved, only the corresponding connecting piece 4 needs to be removed, allowing the stamping device 1 to be individually removed from the crossbeam 3. After maintenance, it can be reinstalled in its original position. To improve the stability of the connecting piece 4 connection, two connecting pieces 4 are provided for each first connecting part 31 and second connecting part 11. The two connecting pieces 4 connect the two parts from opposite sides, distributing the force and improving the overall structural stability, preventing the crossbeam 3 from tilting.

[0033] Since the crossbeam 3 is located on top of each stamping device 1 and connected to each stamping device 1 via connectors 4, the overall weight of the crossbeam 3 is borne by each connector 4 and the stamping device 1. In order to reduce the load on each stamping device 1 while ensuring the overall strength of the crossbeam 3, the crossbeam 3 in this embodiment includes two crossbeams spaced apart. At the same time, in order to facilitate the installation of the transfer device 2, four mounting beams 32 are also provided on the crossbeam 3. The mounting beams 32 are connected to both crossbeams 3. Each transfer device 2 is set on its corresponding mounting beam 32, thereby realizing that the transfer device 2 and the stamping device 1 are independently connected to the crossbeam 3. When the stamping device 1 is moved, there is no need to disassemble and assemble its corresponding transfer device 2 simultaneously. Both can be disassembled and repaired independently, avoiding the cumbersome steps such as calibration and reprogramming required to reinstall the transfer device 2 when moving the stamping device 1, thus facilitating the maintenance of the stamping device 1.

[0034] In addition, the stamping production line also includes a base plate 5 on which each stamping equipment 1 is placed. The base plate 5 is equipped with four limiting mechanisms 6 corresponding to each stamping equipment 1. The base plate 5 connects the lower parts of each stamping equipment 1. At the same time, the upper parts of each stamping equipment 1 are connected by crossbeams 3, so that any two adjacent stamping equipment 1 form a closed frame structure. While transmitting and canceling vibrations, it also increases the strength, stability and deformation resistance of the overall structure, and restricts the degree of freedom of the stamping equipment 1 to reduce the possibility of it shaking or tilting.

[0035] For details on the structure of the limiting mechanism 6, please refer to [link / reference]. Figure 1-2 and Figure 4 The lower part of the stamping equipment 1 is provided with four placement parts 12, and each limiting mechanism 6 is provided in a one-to-one correspondence with the placement part 12. Each limiting mechanism 6 includes a limiting member 61 that limits the placement part 12 in the length and width directions of the stamping equipment 1. The limiting member 61 limits the placement part 12 in the length and width directions of the corresponding stamping equipment 1 and has the following two functions: First, from the perspective of the overall stamping production line, by connecting the various stamping equipment 1s and cooperating with the crossbeam 3 on the upper part of the stamping equipment 1, the vibration energy generated by any stamping equipment 1 is transmitted to the other stamping equipment 1s, thereby canceling each other out and protecting the transfer device 2 set on the stamping equipment 1 from the influence of vibration; Second, from the perspective of a single stamping equipment 1, Figure 1-2 In this embodiment, the X direction is the length direction of the stamping equipment 1, and the Y direction is the width direction of the stamping equipment 1. The limiting member 61 restricts the length and width directions of the placement part 12, thereby limiting the degrees of freedom of the stamping equipment 1 in the X and Y directions, changing the natural frequency of the stamping equipment 1 and introducing additional resistance, thus reducing the possibility of vibration.

[0036] Specifically, the limiting mechanism 6 includes a first seat 62 and a second seat 63. Both the first seat 62 and the second seat 63 are provided with limiting members 61, allowing the first seat 62 to limit the placement portion 12 from the width direction of the stamping equipment 1, and the second seat 63 to limit the placement portion 12 from the length direction of the stamping equipment 1. The limiting members 61 can move towards or away from the placement portion 12. Two adjacent limiting mechanisms 6 along the length direction of the stamping equipment 1 are symmetrically arranged with respect to the Y-direction, allowing them to limit their respective placement portions 12 in opposite directions along the length direction. Similarly, two adjacent limiting mechanisms 6 along the width direction of the stamping equipment 1 are symmetrically arranged with respect to the X-direction, allowing them to limit their respective placement portions 12 in opposite directions along the width direction. With this design, although from the perspective of any one placement part 12, the limiting mechanism 6 only abuts against the placement part 12 on one side of the length direction and one side of the width direction, without completely restricting its degree of freedom of movement; however, from the perspective of a stamping machine 1, since a stamping machine 1 has four placement parts 12, the two adjacent limiting mechanisms 6 in the length direction limit their respective placement parts 12 in opposite directions along the length direction, thereby restricting the degree of freedom of movement of the stamping machine 1 in the length direction. Similarly, the two adjacent limiting mechanisms 6 in the width direction restrict the degree of freedom of movement of the stamping machine 1 in the width direction. Since the limiting member 61 can move towards or away from the placement part 12, the stamping machine 1 can adjust its position within a certain range and be limited to the desired position by the limiting member 61. In this embodiment, the first seat 62 and the second seat 63 are both welded to the base plate 5, the limiting member 61 is threadedly connected to the first seat 62, and the limiting member 61 is threadedly connected to the second seat 63.

[0037] When moving the stamping equipment 1, because the limiting member 61 of the limiting mechanism 6 needs to limit each placement part 12, the first seat 62 and the second seat 63 need to be higher than the placement part 12, thus interfering with the lateral movement of the placement part 12; furthermore, because the first connecting part 31 interferes with the second connecting part 11 in the height direction, the stamping equipment 1 that needs to be moved cannot be directly lifted upwards. To achieve the movement of the stamping equipment 1, such as... Figure 6 As shown, in this embodiment, there is a first distance D1 between the first seat 62 and the placement part 12, and a second distance D2 between one side of the second connecting part 11 and the other side of the first connecting part 31 corresponding to the second connecting part 11. The first distance D1 and the second distance D2 satisfy: D1>D2; the height difference H1 between the bottom of the placement part 12 and the top of the first seat 62 and the length L1 of the second connecting part 11 satisfy: L1>H1; and the length L2 of the first connecting part 31 satisfies: L2>H1. See also Figure 6-8The stamping device 1 can first move laterally a suitable distance to make the second connecting part 11 and the first connecting part 31 staggered, and then lift up to avoid interference between the first seat 62 and the second seat 63 before moving laterally out.

[0038] Finally, in this embodiment, a vibration damping component 7 is also provided between the base plate 5 and the placement part 12 to absorb and dissipate vibration energy and reduce the vibration amplitude, such as... Figure 5 As shown, the vibration damping component 7 includes a hardening layer 71 and a damping layer 72 disposed beneath the hardening layer 71. The hardening layer 71 is made of a metallic material and is used to directly contact the placement part 12, thereby enhancing the structural rigidity of the vibration damping component 7 and preventing excessive deformation. The damping layer 72 is made of rubber or other elastic material and is used to suppress the vibration of the stamping equipment 1. Among all the stamping equipment 1, one of the stamping equipment 1 can be selected as the reference stamping equipment 1' for leveling. In this embodiment, the reference stamping equipment 1' is located at the edge of the stamping production line. The remaining stamping equipment 1 has a leveling stud 81 on its placement part 12. The placement part 12 has a through hole 121 through which the leveling stud 81 passes. A leveling nut 82 is also welded to the placement part 12, coaxially arranged with the through hole 121. The placement part 12 is screwed to the leveling stud 81 via the leveling nut 82. By rotating the leveling stud 81, it moves up and down along the through hole 121, thereby leveling the stamping equipment 1. The reference stamping equipment 1', as a reference component, does not have a leveling stud 81 on its placement part 12. Leveling via the leveling stud 81 prevents large deformation of the crossbeam 3, ensuring the accuracy of the transfer device 2 during the operation of the stamping production line.

[0039] The specific steps for moving any one or more stamping devices 1 to other locations in this embodiment are as follows:

[0040] like Figure 6 As shown, the stamping equipment 1, which needs to be moved to another location for maintenance, is in its initial state; subsequently, as... Figure 7 As shown in the figure, the dashed arrows indicate the direction of movement of the stamping equipment 1. The fixing members located on the first base 62 and the second base 63 move away from the stamping equipment 1, providing space for the stamping equipment 11 to move. This allows the stamping equipment 11 to move along its length until the first connecting part 31 and the second connecting part 11 are misaligned. At this point, even if the stamping equipment 1 is lifted upwards, there will be no interference between the first connecting part 31 and the second connecting part 11. Finally, as shown in the figure... Figure 8 As shown in the figure, the dashed arrow indicates the direction of movement of the stamping equipment 1. When the stamping equipment 1 is lifted upward, it can move away from the first seat 62 and the second seat 63. Example

[0041] The structure of the stamping production line in this embodiment is basically the same as that in Embodiment 1, the only difference being: Figure 9-10 As shown, in this embodiment, there is a gap H2 between the first connecting part 31 and the second connecting part 11. The height difference H1 between the bottom of the placement part 12 and the top of the first base 62 and the gap H2 satisfy the condition: H2 > H1. This embodiment is another solution for moving the stamping device 1. In this solution, since the gap H2 between the first connecting part 31 and the second connecting part 11 is greater than the height difference H1 between the bottom of the placement part 12 and the top of the first base 62, the stamping device 1 can be directly lifted upwards without interference from the first connecting part 31. After being lifted upwards a certain distance to avoid interference from the first base 62 and the second base 63, the stamping device 1 can be moved laterally. In this embodiment, the stamping device 1 does not need to be moved laterally first to avoid interference from the first connecting part 31 when moving. The number of steps required for moving is small, making it more convenient to move and maintain the stamping device 1.

[0042] The specific steps for moving any one or more stamping devices 1 to other locations in this embodiment are as follows:

[0043] like Figure 9 As shown, the stamping equipment 1, which needs to be moved to another location for maintenance, is in its initial state; subsequently, as... Figure 10 As shown in the figure, the dashed arrow indicates the direction of movement of the stamping equipment 1. Since the gap H2 between the first connecting part 31 and the second connecting part 11 is large, the stamping equipment 1 can be lifted directly upwards. After being lifted, the stamping equipment 1 can move away from the first seat 62 and the second seat 63.

Claims

1. A stamping production line, comprising at least two stamping machines (1), each of the stamping machines (1) being provided with a corresponding transfer device (2), each of the transfer devices (2) being disposed adjacent to its corresponding stamping machine (1), characterized in that: The upper parts of each of the stamping devices (1) are connected together by a rigid connection structure, and each of the stamping devices (1) and the rigid connection structure are detachably connected. Each of the transfer devices (2) is installed on the rigid connection structure.

2. The stamping production line according to claim 1, characterized in that: The rigid connection structure is a crossbeam (3), on which a first connecting part (31) is provided, and a second connecting part (11) is provided on the upper part of each of the stamping devices (1). The first connecting part (31) and the second connecting part (11) are provided correspondingly and are detachably connected by means of a connector (4).

3. The stamping production line according to claim 2, characterized in that: The crossbeam (3) is disposed on the top of each of the stamping devices (1).

4. The stamping production line according to claim 2, characterized in that: The crossbeam (3) includes two beams spaced apart. At least two mounting beams (32) are provided on the crossbeam (3). The mounting beams (32) are connected to both crossbeams (3). Each of the transfer devices (2) is provided on its corresponding mounting beam (32).

5. The stamping production line according to any one of claims 2-4, characterized in that: It also includes a base plate (5) on which each of the stamping devices (1) is placed, and at least two limiting mechanisms (6) are provided on the base plate (5) corresponding to each of the stamping devices (1).

6. The stamping production line according to claim 5, characterized in that: The lower part of the stamping equipment (1) is provided with at least two placement parts (12), and the limiting mechanism (6) is provided in correspondence with the placement parts (12). Each limiting mechanism (6) includes a limiting member (61) that limits the placement part (12) from the length direction and / or width direction of the stamping equipment (1).

7. The stamping production line according to claim 6, characterized in that: The limiting mechanism (6) includes a first seat (62) and a second seat (63). The first seat (62) and the second seat (63) are each provided with a limiting member (61), so that the first seat (62) can limit the placement part (12) from the width direction of the stamping equipment (1), and the second seat (63) can limit the placement part (12) from the length direction of the stamping equipment (1). The limiting member (61) can move towards or away from the placement part (12).

8. The stamping production line according to claim 7, characterized in that: The first seat (62) and the placement part (12) have a first distance D1, and one side of the second connecting part (11) and the other side of the first connecting part (31) corresponding to the second connecting part (11) have a second distance D2. The first distance D1 and the second distance D2 satisfy: D1>D2; the height difference H1 between the bottom of the placement part (12) and the top of the first seat (62) and the length L1 of the second connecting part (11) satisfy: L1>H1; and the length L2 of the first connecting part (31) satisfies: L2>H1.

9. The stamping production line according to claim 7, characterized in that: There is a gap H2 between the first connecting part (31) and the second connecting part (11), and the height difference H1 between the bottom of the placement part (12) and the top of the first seat (62) and the gap H2 satisfy: H2>H1.

10. The stamping production line according to any one of claims 6-9, characterized in that: A vibration damping assembly (7) is provided between the base plate (5) and the placement part (12). The vibration damping assembly (7) includes a hardening layer (71) and a damping layer (72) disposed below the hardening layer (71).

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