Sectional material punching device

Abstract

The utility model discloses a sectional material punching device. The sectional material punching device comprises a driving mechanism, a fixing assembly, a transmission assembly, a main clamping assembly and a clamping punching assembly used for pressing and punching a sectional material to be punched. The main clamping assembly and the clamping punching assembly are oppositely arranged on the two sides of the fixing assembly respectively, the movable end of the driving mechanism is in transmission connection with the main clamping assembly, and the fixed end of the driving mechanism is in transmission connection with the input end of the transmission assembly. The output end of the transmission assembly is in transmission connection with the clamping and punching assembly. The main clamping assembly, the clamping punching assembly and the fixing assembly can define a punching cavity used for clamping a to-be-punched sectional material. According to the punching device, the punching precision is ensured, the overall structure of the punching device is simplified, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of profile processing equipment, in particular to a profile punching device. Background Art

[0002] When punching holes in the existing aluminum alloy profiles during the stretching and bending forming process, two clamping modules are generally set in the width or thickness direction of the profile to clamp the profile, and after the profile is clamped, the punching head is driven to punch the profile, and the punching head and the two clamping modules need to be equipped with a driving mechanism respectively. The number of driving mechanisms in the above structure is large, so more actions need to be performed during the process of punching the profile, the punching process is cumbersome, and the overall structure is relatively complex, maintenance is difficult, and the cost of use is high. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a profile punching device and simplify the overall structure of the device.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A profile punching device, comprising a driving mechanism, a fixing assembly, a transmission assembly, a main clamping assembly and a clamping and punching assembly for applying pressure to and punching a profile to be punched;

[0006] The main clamping assembly and the clamping and punching assembly are respectively arranged on two sides of the fixed assembly, the movable end of the driving mechanism is transmission-connected to the main clamping assembly, the fixed end of the driving mechanism is transmission-connected to the input end of the transmission assembly, and the output end of the transmission assembly is transmission-connected to the clamping and punching assembly;

[0007] The main clamping assembly, the clamping and punching assembly and the fixing assembly can be combined to form a punching cavity for clamping the profile to be punched.

[0008] Further, the main clamping assembly includes a transmission block and a main clamping block;

[0009] The main clamping block is transmission-connected to the driving mechanism through the transmission block, and the main clamping block is slidably connected to the fixing assembly;

[0010] The transmission block can be pressed against the fixing assembly in the sliding direction of the main clamping block.

[0011] Furthermore, the clamping and punching assembly comprises an auxiliary clamping block, a punching knife and an elastic reset assembly;

[0012] The auxiliary clamping block is transmission-connected to the output end of the transmission assembly through the elastic reset assembly, so that there is a distance between the auxiliary clamping block and the output end of the transmission assembly;

[0013] The auxiliary clamping block is slidably connected to the fixing assembly;

[0014] The punching knife is in transmission connection with the output end of the transmission assembly, and the punching knife can be slidably inserted in the auxiliary clamping block. When the auxiliary clamping block is pressed against the output end of the transmission assembly, the blade head of the punching knife passes through the auxiliary clamping block and is inserted into the punching cavity.

[0015] Further, the elastic reset assembly includes a spring and a fixing pin;

[0016] The fixing pin is connected to the output end of the transmission assembly, the spring is sleeved outside the fixing pin, and the spring is at least partially embedded in the auxiliary clamping block.

[0017] Furthermore, in the punching direction of the punching knife, the main clamping block of the main clamping assembly is provided with a punching hole so that the punching knife can be inserted into the punching hole.

[0018] Further, the transmission assembly includes a transmission member and a connecting member;

[0019] The driving mechanism is connected to one end of the transmission member, the connecting member is connected to the other end of the transmission member, the clamping and punching assembly is connected to the connecting member, and the connecting member can press against the fixing assembly in the moving direction of the clamping and punching assembly.

[0020] Further, it also includes a base;

[0021] The fixing assembly is arranged on the base, and a sliding through slot is provided on the base;

[0022] The transmission member of the transmission assembly can be slidably embedded in the sliding through groove and is arranged through the fixing assembly.

[0023] Furthermore, a limiting component is disposed at one end of the base away from the driving mechanism, and the transmission component can be pressed against the limiting component.

[0024] Furthermore, the fixing assembly includes a fixing seat, a punching seat and a limiting plate;

[0025] The punching seat is installed on the fixing seat, and the length direction of the punching seat is perpendicular to the sliding direction of the main clamping assembly;

[0026] The clamping and punching assembly and the main clamping assembly are respectively connected to the fixed seat in a sliding manner, and the clamping and punching assembly and the main clamping assembly can be pressed against the punching seat;

[0027] The limiting plate is arranged at one end of the fixing seat in the length direction.

[0028] Furthermore, it also includes a feeding mechanism;

[0029] The fixed end of the blanking mechanism is located on a side of the fixed seat away from the punching seat, and the movable end of the blanking mechanism can be arranged through the fixed seat and the punching seat in sequence.

[0030] The beneficial effect of the utility model is that the utility model sets a transmission component so that the driving mechanism can drive the main clamping component to press one side of the profile, and can drive the clamping and punching component to press the other side of the profile through the transmission component, so that the main clamping component and the clamping and punching component can clamp the profile and punch holes at the same time, and the profile can be stably clamped before punching. Compared with the existing punching equipment, the setting of the driving mechanism is reduced, so that the overall structure is simplified, the working steps are optimized, and the punching efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a profile punching device in the utility model;

[0032] Figure 2 for Figure 1 A front view of

[0033] Figure 3 for Figure 1 A top view of

[0034] Figure 4 for Figure 3 Sectional view of the AA plane;

[0035] Figure 5 for Figure 3 Cross-sectional view of the middle BB plane.

[0036] Description of labels:

[0037] 1. Driving mechanism;

[0038] 2. Fixing assembly; 21. Fixing seat; 22. Punching seat; 23. Limiting plate;

[0039] 3. Transmission assembly; 31. Transmission parts; 32. Connecting parts;

[0040] 4. Main clamping assembly; 41. Transmission block; 42. Main clamping block; 421. Punching hole;

[0041] 5. Clamping and punching assembly; 51. Auxiliary clamping block; 511. Plug-in portion; 52. Punching knife; 53. Elastic reset assembly; 531. Spring; 532. Fixing pin;

[0042] 6. Punching cavity;

[0043] 7. Base; 71. Sliding slot;

[0044] 8. Limiting assembly; 81. Limiting block; 82. Limiting screw;

[0045] 9. Unloading mechanism; 91. Linear cylinder; 92. Ejector. DETAILED DESCRIPTION

[0046] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0047] The existing profile punching equipment needs to be equipped with a driving mechanism 1 for each of the punching cutter head 52 and the two clamping modules, which makes the overall structure of the equipment more complicated and the daily maintenance more difficult.

[0048] Please refer to Figure 1-Figure 5 In order to solve the above problems, a profile punching device is proposed, comprising a driving mechanism 1, a fixed component 2, a transmission component 3, a main clamping component 4 and a clamping punching component 5 for applying pressure to and punching the profile to be punched; the main clamping component 4 and the clamping punching component 5 are respectively arranged on both sides of the fixed component 2, the movable end of the driving mechanism 1 is transmission-connected with the main clamping component 4, the fixed end of the driving mechanism 1 is transmission-connected with the input end of the transmission component 3, and the output end of the transmission component 3 is transmission-connected with the clamping punching component 5; the main clamping component 4, the clamping punching component 5 and the fixed component 2 can enclose and form a punching cavity 6 for clamping the profile to be punched. Optionally, the driving mechanism 1 is an oil cylinder, an air cylinder or a linear push rod, preferably an oil cylinder.

[0049] It can be understood that the utility model sets the transmission component 3 so that the driving mechanism 1 can drive the main clamping component 4 to press against one side of the profile, and can also drive the clamping and punching component 5 to press against the other side of the profile through the transmission component 3, so that the main clamping component 4 and the clamping and punching component 5 can clamp the profile and punch holes at the same time, and the profile can be stably clamped before punching. Compared with the existing punching equipment, the setting of the driving mechanism 1 is reduced, so that the overall structure is simplified, the working steps are optimized, and the punching efficiency is improved.

[0050] In some embodiments, the transmission assembly 3 includes a transmission member 31 and a connecting member 32; the driving mechanism 1 is connected to one end of the transmission member 31, the connecting member 32 is connected to the other end of the transmission member 31, the clamping and punching assembly 5 is connected to the connecting member 32, and the connecting member 32 can press against the fixed assembly 2 in the moving direction of the clamping and punching assembly 5. The connecting member 32 is located at the output end of the transmission assembly 3, and the end of the driving mechanism 1 connected to the transmission member 31 is located at the input end of the transmission assembly 3. Preferably, the connecting member 32 is L-shaped, and the setting of the connecting member 32 is used to drive the clamping and punching assembly 5 to move toward the main clamping assembly 4 on the one hand, and to press against the fixed assembly 2 on the other hand to play a limiting role.

[0051] In some embodiments, the main clamping assembly 4 includes a transmission block 41 and a main clamping block 42; the main clamping block 42 is transmission-connected to the driving mechanism 1 through the transmission block 41, and the main clamping block 42 is slidably connected to the fixed assembly 2; the transmission block 41 can press against the fixed assembly 2 in the sliding direction of the main clamping block 42; in the punching direction of the punching knife 52, the main clamping block 42 of the main clamping assembly 4 is provided with a punching hole 421, so that the punching knife 52 can be inserted into the punching hole 421. The transmission block 41 is provided to transmit the driving force of the driving mechanism 1 to the main clamping block 42 on the one hand, and to limit the stroke of the main clamping block 42 and provide a reverse force for the driving mechanism 1 on the other hand. Specifically, when the transmission block 41 presses against the fixed assembly 2, the driving force of the driving mechanism 1 will be transmitted to the clamping and punching assembly 5 through the transmission assembly 3, so as to drive the clamping and punching assembly 5 to move toward the side where the main clamping assembly 4 is located and clamp the profile. The surface of the main clamping block 42 facing the clamping and punching assembly 5 has anti-slip textures to increase the friction between the main clamping block 42 and the profile.

[0052] In some embodiments, the clamping and punching assembly 5 includes an auxiliary clamping block 51, a punching knife 52 and an elastic reset assembly 53; the auxiliary clamping block 51 is transmission-connected to the output end of the transmission assembly 3 through the elastic reset assembly 53, so that there is a spacing w between the auxiliary clamping block 51 and the output end of the transmission assembly 3; the auxiliary clamping block 51 is slidably connected to the fixing assembly 2; the punching knife 52 is transmission-connected to the output end of the transmission assembly 3, and the punching knife 52 is slidably inserted in the auxiliary clamping block 51, and when the auxiliary clamping block 51 is pressed against the output end of the transmission assembly 3, the blade head of the punching knife 52 passes through the auxiliary clamping block 51 and is inserted into the punching cavity 6. The setting of the elastic reset assembly 53 is used to form a buffer space between the auxiliary clamping block 51 and the connecting member 32 of the transmission assembly 3, so that the auxiliary clamping block 51 is pressed against the profile first, and then the punching knife 52 punches the profile, thereby improving the punching accuracy. Specifically, when the transmission component 3 drives the auxiliary clamping block 51 to clamp the profile, the auxiliary clamping block 51 first moves into position and presses against the profile, and then because the driving mechanism 1 continuously applies force through the transmission component 3, the elastic reset component 53 is squeezed by the auxiliary clamping block 51 and the connecting piece 32 and deforms, causing the punching knife 52 to continue to approach the profile and then punch a hole.

[0053] In some embodiments, the auxiliary clamping block 51 has an inserting portion 511 at one end facing the main clamping block 42 , and the inserting portion 511 can be inserted into a corresponding notch of the profile to limit the profile and improve stability.

[0054] In some embodiments, the elastic reset assembly 53 includes a spring 531 and a fixing pin 532; the fixing pin 532 is connected to the output end of the transmission assembly 3, the spring 531 is sleeved outside the fixing pin 532, and the spring 531 is at least partially embedded in the auxiliary clamping block 51. The setting of the fixing pin 532 is used to limit the spring 531 on the one hand, and to play a guiding role between the auxiliary clamping block 51 and the connecting member 32 on the other hand, and the setting of the spring 531 is mainly used to apply a force to the connecting member 32 during the reset process, so that the punching knife 52 is quickly separated from the profile. Preferably, the spring 531 is a compression spring, and the elastic reset assembly 53 is provided with at least two, and the axes of the two elastic reset assemblies 53 are parallel to each other.

[0055] In some embodiments, a base 7 is further included; the fixing component 2 is disposed on the base 7, and a sliding groove 71 is provided on the base 7; the transmission member 31 of the transmission component 3 is slidably embedded in the sliding groove 71 and is disposed through the fixing component 2.

[0056] In some embodiments, a limit assembly 8 is provided at one end of the base 7 away from the driving mechanism 1, and the transmission assembly 3 can be pressed against the limit assembly 8. The setting of the limit assembly 8 is used to limit the travel of the transmission assembly 3 when it is reset, so as to prevent the transmission assembly 3 from separating from the base 7.

[0057] In some embodiments, the fixing assembly 2 includes a fixing seat 21, a punching seat 22 and a limiting plate 23; the punching seat 22 is mounted on the fixing seat 21, and the length direction of the punching seat 22 is perpendicular to the sliding direction of the main clamping assembly 4; the clamping punching assembly 5 and the main clamping assembly 4 are respectively slidably connected to the fixing seat 21, and the clamping punching assembly 5 and the main clamping assembly 4 can press against the punching seat 22; the limiting plate 23 is arranged at one end in the length direction of the fixing seat 21. The setting of the limiting plate 23 is used to cooperate with the punching block, the auxiliary clamping block 51 and the main clamping block 42 to simultaneously limit the width direction, thickness direction and length direction of the profile, thereby improving the stability of the profile punching process and the punching accuracy.

[0058] In some embodiments, a material unloading mechanism 9 is further included; the fixed end of the material unloading mechanism 9 is located on a side of the fixed seat 21 away from the punching seat 22, and the movable end of the material unloading mechanism 9 can be sequentially arranged through the fixed seat 21 and the punching seat 22. Specifically, the material unloading mechanism 9 includes a linear cylinder 91 and an ejector pin 92, the ejector pin 92 is located at the movable end of the material unloading mechanism 9, and the linear cylinder 91 is located at the fixed end of the material unloading mechanism 9; the ejector pin 92 can be arranged through the fixed seat 21 and the punching seat 22 to eject the profile after punching, so as to achieve rapid material unloading.

[0059] Please refer to Figure 1-Figure 5 , Embodiment 1 of the present utility model is:

[0060] A profile punching device includes a driving mechanism 1, a fixing assembly 2, a transmission assembly 3, a main clamping assembly 4, a clamping and punching assembly 5 for applying pressure to and punching a profile to be punched, and a base 7; the main clamping assembly 4 and the clamping and punching assembly 5 are respectively arranged on both sides of the fixing assembly 2, the movable end of the driving mechanism 1 is transmission-connected to the main clamping assembly 4, the fixed end of the driving mechanism 1 is transmission-connected to the input end of the transmission assembly 3, and the output end of the transmission assembly 3 is transmission-connected to the clamping and punching assembly 5; the main clamping assembly 4, the clamping and punching assembly 5 and the fixing assembly 2 can enclose and form a punching cavity 6 for clamping the profile to be punched. Preferably, the driving mechanism 1 is a cylinder.

[0061] In this embodiment, the transmission assembly 3 includes a transmission member 31 and a connecting member 32; the driving mechanism 1 is connected to one end of the transmission member 31, the connecting member 32 is connected to the other end of the transmission member 31, the clamping and punching assembly 5 is connected to the connecting member 32, and the connecting member 32 can press against the fixing assembly 2 in the moving direction of the clamping and punching assembly 5. The connecting member 32 is located at the output end of the transmission assembly 3, and the end of the driving mechanism 1 connected to the transmission member 31 is located at the input end of the transmission assembly 3.

[0062] In this embodiment, the fixing assembly 2 is arranged on the base 7, and a sliding groove 71 is provided on the base 7; the transmission member 31 of the transmission assembly 3 is slidably embedded in the sliding groove 71 and is arranged through the fixing assembly 2. A limiting assembly 8 is arranged at one end of the base 7 away from the driving mechanism 1, and the transmission assembly 3 can be pressed against the limiting assembly 8. Specifically, the limiting assembly 8 includes a limiting block 81 and a limiting screw 82, and the limiting screw 82 is threadedly connected to the limiting block 81, and the limiting screw 82 is arranged through the limiting block 81 and can be pressed against the transmission member 31.

[0063] In this embodiment, the main clamping assembly 4 includes a transmission block 41 and a main clamping block 42; the main clamping block 42 is transmission-connected to the driving mechanism 1 through the transmission block 41, and the main clamping block 42 is slidingly connected to the fixed assembly 2; the transmission block 41 can be pressed against the fixed assembly 2 in the sliding direction of the main clamping block 42; in the punching direction of the punching knife 52, the main clamping block 42 of the main clamping assembly 4 is provided with a punching hole 421 so that the punching knife 52 can be inserted into the punching hole 421.

[0064] In this embodiment, the clamping and punching assembly 5 includes an auxiliary clamping block 51, a punching knife 52 and an elastic reset assembly 53; the auxiliary clamping block 51 is transmission-connected to the output end of the transmission assembly 3 through the elastic reset assembly 53, so that there is a distance w between the auxiliary clamping block 51 and the output end of the transmission assembly 3; the auxiliary clamping block 51 is slidably connected to the fixing assembly 2; the punching knife 52 is transmission-connected to the output end of the transmission assembly 3, and the punching knife 52 is slidably inserted in the auxiliary clamping block 51. When the auxiliary clamping block 51 is pressed against the output end of the transmission assembly 3, the blade head of the punching knife 52 passes through the auxiliary clamping block 51 and is inserted into the punching cavity 6. The auxiliary clamping block 51 has an inserting portion 511 at one end facing the main clamping block 42, and the inserting portion 511 can be inserted into the corresponding notch of the profile. The elastic reset assembly 53 includes a spring 531 and a fixing pin 532; the fixing pin 532 is connected to the output end of the transmission assembly 3, the spring 531 is sleeved outside the fixing pin 532, and the spring 531 is at least partially embedded in the auxiliary clamping block 51. Specifically, when the auxiliary clamping block 51 is not pressed against the profile, due to the action of the spring 531, there is a spacing w between the auxiliary clamping block 51 and the connecting member 32, and at the same time, the blade head of the punching knife 52 is hidden in the auxiliary clamping block 51. Among them, the main clamping block 42 has a side surface facing the auxiliary clamping block 51 with anti-slip lines, and the auxiliary clamping block 51 has a side surface facing the main clamping block 42 with an anti-slip portion.

[0065] In this embodiment, the fixing assembly 2 includes a fixing seat 21, a punching seat 22 and a limiting plate 23; the punching seat 22 is installed on the fixing seat 21, and the length direction of the punching seat 22 is perpendicular to the sliding direction of the main clamping assembly 4; the clamping and punching assembly 5 and the main clamping assembly 4 are respectively slidably connected to the fixing seat 21, and the clamping and punching assembly 5 and the main clamping assembly 4 can be pressed against the punching seat 22; the limiting plate 23 is arranged at one end of the length direction of the fixing seat 21.

[0066] In this embodiment, a blanking mechanism 9 is further included; the fixed end of the blanking mechanism 9 is located on a side of the fixed seat 21 away from the punching seat 22, and the movable end of the blanking mechanism 9 can be sequentially arranged through the fixed seat 21 and the punching seat 22. Specifically, the blanking mechanism 9 includes a linear cylinder 91 and an ejector pin 92, the ejector pin 92 is located at the movable end of the blanking mechanism 9, and the linear cylinder 91 is located at the fixed end of the blanking mechanism 9; the ejector pin 92 can be arranged through the fixed seat 21 and the punching seat 22.

[0067] The working principle of this embodiment is:

[0068] The driving mechanism 1 extends, so that the transmission block 41 and the main clamping block 42 move toward the side where the auxiliary clamping block 51 is located, until the transmission block 41 presses against the fixing seat 21, and the main clamping block 42 and the transmission block 41 stop moving. At this time, the main clamping block 42 abuts against the profile.

[0069] The driving mechanism 1 continues to extend, and due to the reverse force of the fixed seat 21 on the transmission block 41, the driving mechanism 1 drives the transmission member 31 to move toward the direction close to the main clamping block 42. The profile located on the fixed seat 21 is clamped by the auxiliary clamping block 51 and the main clamping block 42. The driving mechanism 1 continues to extend, the spring 531 is compressed, and the connecting member 32 drives the punching knife 52 to gradually approach the main clamping block 42 to complete the profile punching.

[0070] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A profile punching device, characterized in that: It includes a driving mechanism, a fixing assembly, a transmission assembly, a main clamping assembly and a clamping and punching assembly for applying pressure to and punching the profile to be punched; The main clamping assembly and the clamping and punching assembly are respectively arranged on two sides of the fixed assembly, the movable end of the driving mechanism is transmission-connected to the main clamping assembly, the fixed end of the driving mechanism is transmission-connected to the input end of the transmission assembly, and the output end of the transmission assembly is transmission-connected to the clamping and punching assembly; The main clamping assembly, the clamping and punching assembly and the fixing assembly can be combined to form a punching cavity for clamping the profile to be punched.

2. A profile punching device according to claim 1, characterized in that: The main clamping assembly comprises a transmission block and a main clamping block; The main clamping block is transmission-connected to the driving mechanism through the transmission block, and the main clamping block is slidably connected to the fixing assembly; The transmission block can be pressed against the fixing assembly in the sliding direction of the main clamping block.

3. A profile punching device according to claim 1, characterized in that: The clamping and punching assembly comprises an auxiliary clamping block, a punching knife and an elastic reset assembly; The auxiliary clamping block is transmission-connected to the output end of the transmission assembly through the elastic reset assembly, so that there is a distance between the auxiliary clamping block and the output end of the transmission assembly; The auxiliary clamping block is slidably connected to the fixing assembly; The punching knife is in transmission connection with the output end of the transmission assembly, and the punching knife can be slidably inserted in the auxiliary clamping block. When the auxiliary clamping block is pressed against the output end of the transmission assembly, the blade head of the punching knife passes through the auxiliary clamping block and is inserted into the punching cavity.

4. A profile punching device according to claim 3, characterized in that: The elastic reset assembly comprises a spring and a fixing pin; The fixing pin is connected to the output end of the transmission assembly, the spring is sleeved outside the fixing pin, and the spring is at least partially embedded in the auxiliary clamping block.

5. A profile punching device according to claim 3, characterized in that: In the punching direction of the punching knife, the main clamping block of the main clamping assembly is provided with a punching hole so that the punching knife can be inserted into the punching hole.

6. A profile punching device according to claim 1, characterized in that: The transmission assembly includes a transmission member and a connecting member; The driving mechanism is connected to one end of the transmission member, the connecting member is connected to the other end of the transmission member, the clamping and punching assembly is connected to the connecting member, and the connecting member can press against the fixing assembly in the moving direction of the clamping and punching assembly.

7. A profile punching device according to claim 1, characterized in that: Also includes a base; The fixing assembly is arranged on the base, and a sliding through groove is provided on the base; The transmission member of the transmission assembly can be slidably embedded in the sliding through groove and is arranged through the fixing assembly.

8. A profile punching device according to claim 7, characterized in that: A limiting component is disposed at one end of the base away from the driving mechanism, and the transmission component can be pressed against the limiting component.

9. A profile punching device according to claim 1, characterized in that: The fixing assembly comprises a fixing seat, a punching seat and a limiting plate; The punching seat is installed on the fixing seat, and the length direction of the punching seat is perpendicular to the sliding direction of the main clamping assembly; The clamping and punching assembly and the main clamping assembly are respectively connected to the fixed seat in a sliding manner, and the clamping and punching assembly and the main clamping assembly can be pressed against the punching seat; The limiting plate is arranged at one end of the fixing seat in the length direction.

10. A profile punching device according to claim 9, characterized in that: It also includes a feeding mechanism; The fixed end of the blanking mechanism is located on a side of the fixed seat away from the punching seat, and the movable end of the blanking mechanism can be arranged through the fixed seat and the punching seat in sequence.

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