Solder strip traction mechanism

Abstract

The utility model discloses a solder strip traction mechanism, and belongs to the technical field of solder strip traction. A solder strip traction mechanism comprises a bottom plate, a driving assembly, a movable clamping part and a fixed clamping part. The bottom plate is a fixed part; the driving assembly comprises a driving source, a pressing plate and a bearing; the output end of the driving source is connected with the pressing plate, and the driving source has the capability of horizontally and transversely moving; a positioning cavity is formed in the side wall of the pressing plate; the top wall of the position adjusting cavity abuts against the bearing. The height change trend of the top wall of the position adjusting cavity from left to right is matched with the vertical moving track of the bearing. The outer ring of the bearing abuts against the top wall of the position adjusting cavity in a rolling mode, and the inner ring of the bearing is connected with the movable clamping part through a connecting shaft. The movable clamping part is in sliding connection with the bottom plate so as to keep the vertical moving capability; the fixed clamping part is fixedly connected with the bottom plate and located on the lower side of the movable clamping part so as to be matched with the movable clamping part to form a clamping unit, and the clamping unit is used for clamping the welding strip. The clamping force of each clamping jaw can be appropriate by using a single air cylinder to be matched with a spring.

Description

Technical Field

[0001] This utility model belongs to the field of welding strip traction technology, and more specifically, relates to a welding strip traction mechanism. Background Technology

[0002] Most existing solder strips are round solder strips. However, due to their structure, round solder strips have the problem of inaccurate clamping and alignment, especially when used in BC solar cells.

[0003] Therefore, the application of flat welding strips is gradually increasing. However, the existing clamping mechanism of flat welding strips is too tall and occupies a large space. In addition, the gripper mechanism is thick, wide and heavy, resulting in slow clamping and welding speeds during operation, which cannot be adapted to high-speed operations. Utility Model Content

[0004] This invention provides a welding strip traction mechanism that can achieve appropriate clamping force for each gripper using a single cylinder in conjunction with a spring.

[0005] This utility model discloses a welding strip traction mechanism, comprising a base plate, a drive assembly, a movable clamping part, and a fixed clamping part; the base plate is a fixed component; the drive assembly includes a drive source, a pressure plate, and a bearing; the output end of the drive source is connected to the pressure plate and has the ability to move horizontally; an adjustment cavity is provided on the side wall of the pressure plate; the top wall of the adjustment cavity abuts against the bearing; the height change trend of the top wall of the adjustment cavity from left to right matches the vertical movement trajectory of the bearing; the outer ring of the bearing rolls against the top wall of the adjustment cavity, and the inner ring is connected to the movable clamping part through a connecting shaft; the movable clamping part is slidably connected to the base plate to maintain the vertical movement capability; the fixed clamping part is fixedly connected to the base plate and located below the movable clamping part to match the movable clamping part and form a clamping unit, which is used to clamp the welding strip.

[0006] As a further improvement of this utility model, the movable clamping part includes a clamping drive plate and multiple movable clamping jaws; the front end of the bearing is coupled to the clamping drive plate; the multiple movable clamping jaws are evenly arranged on the end face of the clamping drive plate; the movable clamping jaws are detachably connected to the clamping drive plate by bolts.

[0007] As a further improvement of this utility model, a guide seat is provided at the upper end of the movable gripper, and an adjusting spring is provided at the lower end of the guide seat. The adjusting spring is embedded in the wall of the movable gripper and is movably connected to the wall. Movable grooves are provided on both sides of the lower end of the movable gripper, and the movable grooves penetrate the wall of the movable gripper. The middle section of the movable grooves on both sides protrudes outward. Abutting grooves are provided on both sides of the lower end of the movable grooves along the protruding part of the movable gripper. The middle section of the abutting grooves on both sides protrudes outward to form a pressing part.

[0008] As a further improvement of this utility model, the fixed clamping part includes a fixed clamping claw, which is matched with the lower end of the movable clamping claw; the fixed clamping claw is detachably connected to the edge of the base plate; the middle part of the fixed clamping claw is bent downward, and a groove is opened in the middle part of the fixed clamping claw, which simultaneously penetrates the walls of the fixed clamping claw in two directions; a support cavity is opened in the middle of the groove at the bent end, and the support cavity matches the pressing part.

[0009] As a further improvement of this utility model, the opening width of the slot is greater than that of the support cavity, so that the upper two sides of the support cavity are formed with abutment walls; the slot is provided with a movable gripper, and the abutment groove of the movable gripper matches the abutment wall.

[0010] As a further improvement of this utility model, limiting cavities are provided on both sides of the opening edge of the base plate, and holes are provided in the limiting cavities. A spring is provided in the hole, one end of the spring is fixedly connected to the bottom end of the hole, and the other end of the spring is fixedly connected to the limiting member provided at the upper end. A second connecting member is provided on the side end of the limiting member, and the second connecting member abuts against the limiting member. A second guide rail is provided at the lower end of the second connecting member, and the second guide rail is arranged in a vertical direction. The second connecting member is sleeved on the second guide rail, and the second connecting member is slidably connected to the second guide rail.

[0011] As a further improvement of this utility model, the gripper drive plate is located at the front end of the second connecting member; the gripper drive plate is detachably connected to the second connecting member and the limiting member on both sides by bolts; a connecting hole is provided in the middle of the gripper drive plate; a connecting shaft is provided at the front end of the bearing; the connecting hole and the connecting shaft are matched with each other; the connecting shaft is fixedly connected to the connecting hole.

[0012] As a further improvement of this utility model, a first guide rail is provided at the lower end of the pressure plate; a first connecting member is provided between the first guide rail and the pressure plate, and the first connecting member is sleeved on the first guide rail; the first connecting member is slidably connected to the first guide rail; and the first connecting member is detachably connected to the pressure plate.

[0013] As a further improvement of this utility model, a clamping limit adjustment block is provided on the side of the pressure plate away from the edge of the support member. The clamping limit adjustment block is used to adjust the clamping amount of the clamping jaws and is slidably connected to the wall of the support member.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention solves the problem of welding strip not being clamped tightly and easily falling off by setting up a clamping jaw mechanism with upper and lower clamping jaws and a clamping jaw drive plate that provides the clamping jaw drive. The springs inside the drive plate and the clamping jaw drive plate are linked with the drive assembly, which solves the problem of welding strip not being clamped tightly and easily falling off compared with existing technologies. In addition, this invention replaces the drive assembly with a single telescopic cylinder that drives the whole, solving the problem of inconsistent welding strip traction length, and the structure is simple and more convenient to use. At the same time, the clamping jaw mechanism of this invention is thin, lightweight and fast, which greatly improves its adaptability to high-speed operations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of a partial three-dimensional structure of the middle part of this utility model;

[0018] Figure 3 This is a partial three-dimensional structural diagram of the gripper mechanism of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0020] Figure 5 This is an enlarged structural schematic diagram of the movable gripper of this utility model;

[0021] Figure 6 This is a partial three-dimensional structural diagram of the utility model after removing the gripper drive board;

[0022] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B;

[0023] Figure 8 This is a side sectional view of the gripper drive plate of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] Base plate 1, slot 11, fixing hole 12, limiting cavity 13, drive assembly 2, telescopic cylinder 21, pressure plate 22, bearing 23, connecting shaft 231, gripper limiting adjustment block 24, first guide rail 25, first connecting piece 251, gripper drive plate 3, second guide rail 31, second connecting piece 32, limiting piece 33, connecting hole 34, gripper mechanism 4, movable gripper 41, guide seat 411, adjusting spring 412, movable slot 413, abutting slot 414, pressing part 415, fixed gripper 42, slot 421, support cavity 422. Detailed Implementation

[0026] Specific Implementation Example 1: Please refer to Figures 1-8A welding strip traction mechanism includes a base plate 1, a drive assembly 2, a gripper drive plate 3, and a gripper mechanism 4.

[0027] A groove 11 is provided in the middle of the base plate 1. One side edge of the groove 11 extends through the wall, and multiple evenly arranged fixing holes 12 are provided at the edge extending through the wall.

[0028] The drive assembly 2 is located inside the chamber 11 and is detachably connected to the base plate 1 by screws. The drive assembly 2 includes a telescopic cylinder 21, a pressure plate 22, and a bearing 23. The telescopic cylinder 21 is fixedly installed inside the chamber 11; the output end of the telescopic cylinder 21 is connected to the pressure plate 22 so as to drive the pressure plate 22 to move horizontally. The pressure plate 22 is slidably installed inside the chamber 11; a gripper limiting adjustment block 24 is detachably connected to the front end of the pressure plate 22. The gripper limiting adjustment block 24 is located inside the chamber 11, and its installation position is located on the telescopic path of the telescopic cylinder 21 so as to control the telescopic path length of the telescopic cylinder 21 and adjust the gripper clamping amount. A first guide rail 25 is provided at the lower end of the pressure plate 22. The length of the first guide rail 25 is less than the length of the edge penetrating the wall, and a limiting groove is provided at the lower end of the first guide rail 25. A limiting groove is formed on the chamber 11, and the length of the limiting groove is greater than the length of the edge of the wall. The first guide rail 25 is detachably connected to the limiting groove so that the first guide rail 25 can be adjusted to the corresponding position of the limiting groove at any time. A first connecting member 251 is provided between the first guide rail 25 and the pressure plate 22. The first connecting member 251 is sleeved on the first guide rail 25 and is slidably connected to the first guide rail 25. The first connecting member 251 is detachably connected to the pressure plate 22 so that the first connecting member 251 can drive the pressure plate 22 to move. The pressure plate 22 has an adjustment cavity at one end near the opening of the chamber 11. The top wall of the adjustment cavity abuts against the bearing 23. The height difference of the top wall of the adjustment cavity from left to right is the vertical movement path of the bearing 23. Specifically, the top wall of the adjustment cavity includes a low horizontal section, a descending section, and a high horizontal section from left to right. When the bearing 23 abuts against the top wall of the adjustment cavity, the adjustment cavity moves with the pressure plate 22, which can compress the bearing 23 to move accordingly. In this embodiment, the bearing 23 is a ball bearing. The outer ring of the bearing 23 rolls against the top wall of the adjustment cavity, and the inner ring of the bearing 23 is connected to the connecting shaft 231. The connecting shaft 231 is detachably connected to the gripper drive plate 3, so that when the telescopic cylinder 21 drives the pressure plate 22 to move horizontally, the bearing 23 moves vertically under the pressure of the top wall of the adjustment cavity, thereby driving the gripper drive plate 3 to move vertically.

[0029] The gripper drive plate 3 is located on the outside of the base plate 1, and both sides of the gripper drive plate 3 are connected to the outer wall of the base plate 1 via slide rails to ensure the vertical movement path of the gripper drive plate 3. Limiting cavities 13 are formed on both sides of the base plate 1 near the edge of the through wall. Holes are formed within each limiting cavity 13, and springs are installed within these holes. One end of the spring is fixedly connected to the bottom of the hole, and the other end is fixedly connected to a limiting member 33 at the upper end. Second connecting members 32 are provided on the sides of each limiting member 33, and the second connecting members 32 abut against each other and are sleeved on the second guide rail 31. The second guide rail 31 is arranged vertically and is fixedly connected to the wall of the base plate 1. The second connecting member 32 is slidably connected to the second guide rail 31. The second connecting member 32 is detachably connected to the gripper drive plate 3. The gripper drive plate 3 has a connecting hole 34 in the middle, which matches the connecting shaft 231 so that the connecting shaft 231 is embedded in the connecting hole 34. The connecting shaft 231 is fixedly connected to the connecting hole 34. The end face of the gripper drive plate 3 near the bearing 23 abuts against the end face of the bearing 23.

[0030] The gripper mechanism 4 includes a movable gripper 41 and a fixed gripper 42. The movable gripper 41 is fixedly connected to the outside of the gripper drive plate 3. The fixed gripper 42 is fixedly connected to the lower side of the base plate 1, and the fixed gripper 42 is located below both the gripper drive plate 3 and the movable gripper 41, so as to match the movable gripper 41 to form a gripping unit. In this embodiment, the gripper mechanism 4 has multiple sets.

[0031] Multiple evenly arranged through holes are formed on the end face of the gripper drive plate 3. These through holes are used to connect multiple evenly arranged gripper mechanisms 4 via bolts. A movable gripper 41 is detachably connected to the through holes via bolts. A guide seat 411 is provided at the upper end of the movable gripper 41. An adjusting spring 412 is provided at the lower end of the guide seat 411. The adjusting spring 412 is embedded in the wall of the movable gripper 41 and is movably connected to the wall of the movable gripper 41. Movable grooves 413 are formed on both sides of the lower end of the movable gripper 41, penetrating the wall of the movable gripper 41. The middle section of the two movable grooves 413 protrudes outward. Abutment grooves 414 are formed on both sides of the protrusion of the movable gripper 41 at the lower end of the movable grooves 413. The middle section of the two abutment grooves 414 protrudes outward, forming a pressing part 415.

[0032] Multiple movable grippers 41 have multiple matching fixed grippers 42 at their lower ends. Each fixed gripper 42 has a fixing hole near the bottom plate 1 that matches the fixing hole 12. The fixed grippers 42 are detachably connected to the edge of the bottom plate 1 through the wall using bolts. The middle of each fixed gripper 42 is bent downwards, and a slot 421 is formed in the middle of the fixed gripper 42, which simultaneously penetrates the wall of the fixed gripper 42 in two directions. A support cavity 422 is formed in the middle of the slot 421 at the bent end, and the support cavity 422 matches the pressing part 415. The width of the slot 421 is greater than that of the support cavity 422, so that abutment walls are formed on both sides of the upper end of the support cavity 422. Movable grippers 41 are embedded in the slot 421, and the abutment groove 414 of the movable gripper 41 matches the abutment wall.

[0033] Working principle:

[0034] In use, this utility model utilizes a telescopic cylinder in conjunction with a pressure plate and bearings to open and close the gripper mechanism. The gripper clamping amount is adjusted via a gripper limit adjustment block, while springs within the first connecting piece and guide seat help ensure the gripper mechanism effectively clamps the welding strip without it falling off. The spring's rebound force effectively controls the clamping degree. The combination of movable and fixed grippers facilitates the clamping of flat welding strips, achieving clamping through an upper and lower clamping method.

Claims

1. A mechanism for strip drawing, characterized by: The utility model relates to a welding strip clamping device, including bottom plate (1), drive assembly (2), movable clamping part and fixed clamping part, The bottom plate (1) is a fixed part; The drive assembly (2) includes a drive source, a pressing plate (22) and a bearing (23); The output end of the drive source is connected with the pressing plate (22) and has the ability of horizontal transverse movement; The side wall of the pressing plate (22) is provided with a position adjusting cavity; the top wall of the position adjusting cavity is in abutment with the bearing (23); the height change trend of the top wall of the position adjusting cavity from left to right is consistent with the vertical movement track of the bearing (23); The outer ring of the bearing (23) is in rolling abutment with the top wall of the position adjusting cavity, and the inner ring is connected with the movable clamping part through a connecting shaft (231); The movable clamping part is slidably connected with the bottom plate (1) to keep the vertical movement ability; The fixed clamping part is fixedly connected with the bottom plate (1) and is located below the movable clamping part to match the movable clamping part to form a clamping unit, and the clamping unit is used for clamping a welding strip.

2. A mechanism for drawing a solder strip according to claim 1, characterized in that: The movable clamping part includes a clamping jaw driving plate (3) and a plurality of movable clamping jaws (41); the front end of the bearing (23) is coupled with the clamping jaw driving plate (3); the plurality of movable clamping jaws (41) are uniformly arranged on the end face of the clamping jaw driving plate (3); and the movable clamping jaws (41) are detachably connected with the clamping jaw driving plate (3) through bolts.

3. A mechanism for drawing a solder strip according to claim 2, characterized in that: The upper end of the movable clamping jaw (41) is provided with a guide seat (411), the lower end of the guide seat (411) is provided with an adjusting spring (412), the adjusting spring (412) is embedded in the wall body of the movable clamping jaw (41) and is movably connected with the wall body; the lower end of the movable clamping jaw (41) is provided with two movable grooves (413) on both sides, the movable grooves (413) penetrate the wall body of the movable clamping jaw (41), and the middle sections of the two movable grooves (413) protrude outward; the lower end of the movable groove (413) is provided with an abutment groove (414) along the protruding portions on both sides of the movable clamping jaw (41), the middle sections of the two abutment grooves (414) protrude outward to form a pressing part (415).

4. A mechanism for drawing a solder strip according to claim 3, characterized in that: The fixed clamping part includes a fixed clamping jaw (42), the fixed clamping jaw (42) is arranged below the movable clamping jaw (41) to match each other; the fixed clamping jaw (42) is detachably connected with the edge of the bottom plate (1); the middle part of the fixed clamping jaw (42) is bent downward, the middle part of the fixed clamping jaw (42) is provided with a slot (421), the slot (421) penetrates the wall bodies of the two fixed clamping jaws (42) at the same time; a supporting cavity (422) is arranged in the middle part of the slot (421) at the bent end, and the supporting cavity (422) matches the pressing part (415).

5. A mechanism for drawing a solder strip according to claim 4, characterized in that: The opening width of the slot (421) is greater than that of the supporting cavity (422), so that the abutment walls are formed on both sides of the upper end of the supporting cavity (422); the movable clamping jaw (41) is embedded in the slot (421), and the abutment groove (414) of the movable clamping jaw (41) matches the abutment wall.

6. A mechanism for drawing a solder strip according to claim 2, characterized in that: The bottom plate (1) is provided with a limiting cavity (13) on the opening edge of both sides, a hole is formed in the limiting cavity (13), a spring is arranged in the hole, one end of the spring is fixedly connected with the bottom end of the hole, the other end of the spring is fixedly connected with a limiting piece (33) arranged at the upper end, the limiting piece (33) is provided with a second connecting piece (32) at the side end, the second connecting piece (32) and the limiting piece (33) abut with each other, the second connecting piece (32) is provided with a second guide rail (31) at the lower end, the second guide rail (31) is arranged along the vertical direction, the second connecting piece (32) is sleeved on the second guide rail (31), and the second connecting piece (32) and the second guide rail (31) are in sliding connection.

7. A mechanism for drawing a solder strip according to claim 6, characterized in that: The clamping jaw driving plate (3) is located at the front end of the second connecting piece (32), the clamping jaw driving plate (3) is detachably connected with the second connecting piece (32) and the limiting piece (33) on the two sides through bolts, a connecting hole (34) is formed in the middle of the clamping jaw driving plate (3), the front end of the bearing (23) is provided with a connecting shaft (231), the connecting hole (34) and the connecting shaft (231) are matched with each other, and the connecting shaft (231) and the connecting hole (34) are fixedly connected.

8. A mechanism for drawing a solder strip according to claim 1, characterized in that: The lower end of the pressing plate (22) is provided with a first guide rail (25), a first connecting piece (251) is arranged between the first guide rail (25) and the pressing plate (22), the first connecting piece (251) is sleeved on the first guide rail (25), the first connecting piece (251) and the first guide rail (25) are in sliding connection, and the first connecting piece (251) and the pressing plate (22) are detachably connected.

9. A mechanism for drawing a solder strip according to claim 1, characterized in that: The pressing plate (22) is provided with a clamping jaw limiting adjusting block (24) on the side away from the edge of the supporting piece, the clamping jaw limiting adjusting block (24) is used for adjusting the clamping amount of the clamping jaw, and the clamping jaw limiting adjusting block (24) and the wall body of the supporting piece are in sliding connection.

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