A direct pressure pneumatic ram

Abstract

The utility model discloses a kind of direct pressure type pneumatic punch devices, it includes stamping assembly and base assembly, the stamping assembly includes power unit and stamping unit, the power unit includes cylinder, the stamping unit includes pedestal, the striker of being movably arranged in the pedestal, the first elastic member of being abutted with the striker, the base assembly includes bottom plate and the template of being set to bottom plate, the template has working surface;The cylinder, the pedestal and the bottom plate are sequentially arranged from top to bottom, the cylinder has piston rod, the output end of the piston rod is connected with impact block, the striker has first end and second end, the first end is impact matched with the impact block, the second end is impact matched with the working surface, the first elastic member makes the striker always have movement trend away from the working surface. The present application has the effect of reducing the cost of production stamping device.

Description

Technical Field

[0001] This application relates to the field of stamping equipment technology, and in particular to a direct-pressure pneumatic stamping device. Background Technology

[0002] In the photovoltaic cell production process, there is a step of welding cells and welding strips to form a cell string using cell stringing equipment. Before welding the welding strip to the cell string, a flattening process needs to be added to the cell string production equipment to flatten the pre-set part of the welding strip to meet the requirements of cell stacking. In the flattening process, the existing technology usually uses a hammer flattening device to flatten the welding strip. The hammer flattening device uses the lever principle to act on the welding strip through a striker (press head). For example, Chinese patent name is a welding strip hammer flattening mechanism (application number 202420128708.4). The cylinder output drives the linkage mechanism to move, and through the force transmission of the linkage mechanism, the press head can move a fixed stroke toward the receiving base plate. After contacting the welding strip, it applies pressure to the welding strip to achieve the hammer flattening effect. According to the description of the existing technology, the cylinder needs to drive the press head to press down through the linkage mechanism, which makes the hammer flattening mechanism complex in structure, high in production cost, and low in stamping efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a direct-pressure pneumatic stamping device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The device includes a stamping assembly and a base assembly. The stamping assembly includes a power unit and a stamping unit. The power unit includes a cylinder. The stamping unit includes a base, a striking pin movably disposed within the base, and a first elastic element that abuts against the striking pin. The base assembly includes a base plate and a template disposed on the base plate. The template has a working surface. The cylinder, the base, and the base plate are arranged sequentially from top to bottom. The cylinder has a piston rod, and the output end of the piston rod is connected to an impact block. The striking pin has a first end and a second end. The first end impacts the impact block, and the second end impacts the working surface. The first elastic element ensures that the striking pin always has a tendency to move away from the working surface.

[0005] Preferably, the cylinder includes a cylinder body, a piston, and a second elastic element. The cylinder body has a piston chamber, and the piston is movably disposed within the piston chamber. The piston divides the piston chamber into a first chamber and a second chamber, which are independent of each other. The cylinder body is provided with an air port communicating with the first chamber. The second elastic element is disposed within the second chamber and abuts against the piston. The piston rod is fixedly connected to the piston. The second elastic element, through the piston and the piston rod, ensures that the impact block always has a tendency to move away from the first end.

[0006] Preferably, the cylinder has two piston chambers arranged in parallel, and the piston rod, the piston, and the second elastic element are all arranged in a one-to-one correspondence with the piston chambers. The output ends of the two piston rods are connected to a connecting plate, and the impact block is fixedly disposed on the connecting plate.

[0007] Preferably, the air port is connected to the first chamber of one of the piston chambers, and the cylinder body is provided with a connecting hole, through which the first chambers of the two pistons are connected.

[0008] Preferably, the impact block is provided with a boss that corresponds to and engages with the first end, and the impact block engages with the first end through the boss.

[0009] Preferably, the working surface extends along the length direction of the template, and the base is provided with a plurality of impact pins arranged in parallel along the length direction of the template, and the impact block is provided with protrusions corresponding one-to-one with the impact pins.

[0010] Preferably, the base is provided with a through hole, the firing pin is movably disposed in the through hole, and the upper end of the base is provided with a limiting pressure plate that cooperates with the limiting of the firing pin.

[0011] Preferably, the firing pin is provided with a dust cover, the base is provided with a connecting seat at the bottom, the outer periphery of the dust cover is tightly pressed between the connecting seat and the base, and the inner periphery of the dust cover is sealed to the lower peripheral wall of the firing pin.

[0012] Preferably, the longitudinal section of the dust cover is wavy.

[0013] Preferably, the upper peripheral wall of the firing pin is provided with a sealing element that seals against the peripheral side wall of the through hole.

[0014] In summary, this application includes at least one of the following beneficial technical effects: When a flattening process is required, the welding strip is first placed between the base and the bottom plate, so that the area of ​​the welding strip to be flattened is located on the working surface of the template. Then, the piston rod of the cylinder moves downward and impacts the first end of the impact pin, thereby causing the second end of the impact pin to impact the working surface of the template. This achieves the flattening process by the lower end of the impact pin cooperating with the template. Compared with the prior art, this application uses direct-acting stamping instead of lever stamping, which optimizes the mechanical structure, reduces the cost of the stamping device, and improves processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the stamping device of this utility model; Figure 2 This is a cross-sectional schematic diagram of the stamping device of this utility model; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional schematic diagram of the cylinder in the stamping device of this utility model; Figure 5 This is a cross-sectional schematic diagram of the stamping unit in the stamping device of this utility model; Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0016] In the diagram: 1. Stamping assembly; 2. Base assembly; 3. Mounting bracket; 4. Power unit; 5. Stamping unit; 6. Cylinder; 7. Support plate; 8. Base plate; 9. Template; 10. Cylinder body; 11. Piston; 12. Piston rod; 13. Second elastic element; 14. Piston chamber; 15. First chamber; 16. Second chamber; 17. Air port; 18. Connecting hole; 19. Connecting plate; 20. Impact block; 21. Boss; 22. Embedding groove; 23. Working surface; 24. Base; 25. Impact pin; 26. First elastic element; 27. First end; 28. Second end; 29. ​​Through hole; 30. Limiting pressure plate; 31. Butt hole; 32. Guide sleeve; 33. Seal; 34. Embedding groove; 35. Dust cover; 36. Connecting part; 37. Telescopic part; 38. Connecting seat; 39. Groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] This application discloses a direct-pressure pneumatic stamping device.

[0019] Reference Figure 1 and Figure 2The system includes a stamping assembly 1 and a base assembly 2. The stamping assembly 1 includes a mounting frame 3, a power unit 4, and a stamping unit 5. The longitudinal section of the mounting frame 3 is U-shaped. The power unit 4 includes multiple cylinders 6, which are arranged in a row and fixed to the upper part of the mounting frame 3 with bolts. The stamping assembly 1 is located at the lower part of the mounting frame 3. The base assembly 2 includes two support plates 7, a base plate 8, and a template 9. The template 9 is installed on the base plate 8. The two support plates 7 are fixed to the two ends of the base plate 8 with bolts respectively. One end of the mounting frame 3 is rotatably connected to the upper end of one support plate 7, and the other end of the mounting frame 3 is fixedly connected to the upper end of the other support plate 7 by a snap fastener.

[0020] Reference Figure 4 The cylinder 6 includes a cylinder body 10, two pistons 11, two second elastic elements 13, and two piston rods 12. The cylinder body 10 has two piston chambers 14 arranged side-by-side. The pistons 11 slide and seal within their respective piston chambers 14, dividing each chamber into an independent first chamber 15 and a second chamber 16. One end of each piston rod 12 is fixedly connected to its corresponding piston 11. The cylinder body 10 has an air port 17, which communicates with one of the first chambers 15. The cylinder body 10 has a connecting hole 18, through which the two first chambers 15 are connected. The second elastic element 13 is a compression spring, located in the second chamber 16 and sleeved around the piston rod 12. One end of the second elastic element 13 abuts against the end of the piston 11, and the other end abuts against the end cap of the cylinder body 10. A connecting plate 19 is fixed to the lower end of the two piston rods 12. An impact block 20 is fixed to the lower end of the connecting plate 19 by bolts. Two bosses 21 are integrally provided on the lower end of the impact block 20. When the cylinder 6 is working, air is introduced into the air port 17, which increases the air pressure in the first chamber 15, thereby pushing the piston 11 to drive the piston rod 12 vertically downward. Under the linkage of the connecting plate 19, the two piston rods 12 can move synchronously.

[0021] Reference Figure 3 , Figure 5 and Figure 6The upper surface of the base plate 8 has an embedding groove 22. The template 9 is embedded in the embedding groove 22 and fixed with bolts. The upper surface of the template 9 is the working surface 23. The stamping unit 5 includes a base 24, multiple firing pins 25 and multiple first elastic elements 26. The firing pin 25 has a first end 27 and a second end 28. The second end 28 of the firing pin 25 has a groove 39, which is horizontally through. The base 24 has multiple through holes 29 corresponding to the firing pins. The firing pins 25 are vertically movable and set in the corresponding through holes 29. The upper surface of the base 24 is fixed with a limit plate 30. Multiple mating holes 31 are evenly provided inside the pressure plate 30. The multiple mating holes 31 correspond one-to-one with multiple through holes 29. A guide sleeve 32 is fixedly installed inside the through hole 29. The guide sleeve 32 is fitted onto the peripheral wall of the impact pin 25. The guide sleeve 32 and the impact pin 25 slide relative to each other. The first elastic element 26 is a compression spring. The first elastic element 26 is fitted onto the peripheral side of the impact pin 25. One end of the first elastic element 26 abuts against the guide sleeve 32, and the other end abuts against the impact pin 25. An annular groove is provided on the peripheral side of the impact pin 25. A sealing element 33 is fitted inside the annular groove. The sealing element 33 slides and seals against the peripheral wall of the through hole 29. The first end 27 is impacted by the impact block 20. Specifically, in this embodiment, the two protrusions 21 of the impact block 20 will impact the first end 27 of the two adjacent ejector pins 25. That is, when the same cylinder 6 is working, the two protrusions 21 of the impact block 20 can impact the two ejector pins 25 at the same time, thereby effectively providing stamping efficiency. The second end 28 of the ejector pin 25 is impacted by the working surface 23 of the template 9.

[0022] An embedding groove 34 is provided on the lower end face of the base 24, and a dust cover 35 is placed in the embedding groove 34. The dust cover 35 is used to prevent debris generated during the stamping process from entering the through hole 29 and causing the striker 25 to become undesirably stuck. The dust cover 35 includes a connecting part 36 and a telescopic part 37. The telescopic part 37 has a wavy longitudinal section and is integrally formed with the connecting part 36. The inner periphery of the telescopic part 37 is sealed and fitted onto the lower peripheral wall of the striker 25. A connecting seat 38 is fixed in the embedding groove 34, and the outer periphery of the connecting part 36 is tightly pressed between the base 24 and the connecting seat 38. When the striker 25 slides through the through hole 29, the telescopic part 37 of the dust cover 35 will contract or extend, thereby ensuring the stable and reliable operation of the striker 25 while maintaining the seal of the dust cover 35.

[0023] The implementation principle of a direct-pressure pneumatic stamping device disclosed in this application is as follows: The welding strip is placed between the base 24 and the bottom plate 8, so that the area of ​​the welding strip to be flattened is located on the working surface 23 of the template 9. Then, the piston rod 12 of the cylinder 6 moves downward to strike the first end 27 of the impact pin 25, thereby causing the second end 28 of the impact pin 25 to impact the working surface 23 of the template 9, so that the lower end of the impact pin 25 cooperates with the template 9 to flatten the welding strip.

[0024] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A direct-pressure pneumatic stamping device, comprising a stamping assembly (1) and a base assembly (2), wherein the stamping assembly (1) comprises a power unit (4) and a stamping unit (5), wherein the power unit (4) comprises a cylinder (6), wherein the stamping unit (5) comprises a base (24), a striker (25) movably disposed within the base (24), and a first elastic member (26) abutting against the striker (25), wherein the base assembly (2) comprises a base plate (8) and a template (9) disposed on the base plate (8), wherein the template (9) has a working surface (23); Its features are: The cylinder (6), the base (24) and the bottom plate (8) are arranged in sequence from top to bottom. The cylinder (6) has a piston rod (12). The output end of the piston rod (12) is connected to an impact block (20). The impact pin (25) has a first end (27) and a second end (28). The first end (27) impacts the impact block (20), and the second end (28) impacts the working surface (23). The first elastic element (26) makes the impact pin (25) always have a tendency to move away from the working surface (23).

2. The direct-pressure pneumatic stamping device according to claim 1, characterized in that, The cylinder (6) includes a cylinder body (10), a piston (11) and a second elastic element (13). The cylinder body (10) has a piston chamber (14). The piston (11) is movably disposed in the piston chamber (14). The piston (11) divides the piston chamber (14) into a first chamber (15) and a second chamber (16) that are independent of each other. The cylinder body (10) is provided with an air port (17) that communicates with the first chamber (15). The second elastic element (13) is disposed in the second chamber (16). The second elastic element (13) abuts against the piston (11). The piston rod (12) is fixedly connected to the piston (11). The second elastic element (13) makes the impact block (20) always have a tendency to move away from the first end (27) through the piston (11) and the piston rod (12).

3. The direct-pressure pneumatic stamping device according to claim 2, characterized in that, The cylinder (10) has two piston chambers (14) arranged in parallel. The piston rod (12), the piston (11) and the second elastic element (13) are all arranged in a one-to-one correspondence with the piston chamber (14). The output ends of the two piston rods (12) are connected to a connecting plate (19). The impact block (20) is fixedly arranged on the connecting plate (19).

4. The direct-pressure pneumatic stamping device according to claim 3, characterized in that, The air port (17) is connected to the first chamber (15) of one of the piston chambers (14), and the cylinder body (10) is provided with a connecting hole (18). The first chambers (15) of the two pistons (11) are connected through the connecting hole (18).

5. The direct-pressure pneumatic stamping device according to claim 1, characterized in that, The impact block (20) is provided with a boss (21) that corresponds to and cooperates with the first end (27). The impact block (20) impacts the first end (27) through the boss (21).

6. The direct-pressure pneumatic stamping device according to claim 1, characterized in that, The working surface (23) extends along the length direction of the template (9), and the base (24) is provided with a plurality of impact pins (25) arranged in parallel along the length direction of the template (9). The impact block (20) is provided with a boss (21) corresponding to the impact pins (25).

7. A direct-pressure pneumatic stamping device according to claim 6, characterized in that... The base (24) is provided with a through hole (29), the striker (25) is movably disposed in the through hole (29), and the upper end of the base (24) is provided with a limiting pressure plate (30) that cooperates with the striker (25).

8. A direct-pressure pneumatic stamping device according to claim 6, characterized in that... The outer side of the firing pin (25) is provided with a dust cover (35), and the bottom of the base (24) is provided with a connecting seat (38). The outer periphery of the dust cover (35) is tightly pressed between the connecting seat (38) and the base (24), and the inner periphery of the dust cover is sealed and fitted onto the lower peripheral wall of the firing pin (25).

9. A direct-pressure pneumatic stamping device according to claim 6, characterized in that... The dust cover (35) has a wavy longitudinal section.

10. A direct-pressure pneumatic stamping device according to claim 6, characterized in that... The upper peripheral wall of the striker (25) is provided with a sealing element (33) that seals with the peripheral side wall of the through hole (29).

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