A welding strip flattening mechanism

Abstract

The invention discloses a welding strip flattening mechanism, which belongs to the technical field of photovoltaic processing equipment. A welding strip flattening mechanism comprises a base assembly, an upper mold unit and a lower mold assembly; the lower mold assembly is installed on the top of the base assembly; the upper mold unit is installed above the lower mold assembly; the upper mold unit comprises a cylinder assembly, a connecting rod assembly, a plurality of triangular seat assemblies, a plurality of needle roller assemblies and a plurality of upper mold assemblies; the output end of the cylinder assembly is installed and connected with the input end of the connecting rod assembly; the output end of the connecting rod assembly is rotatably connected with the corresponding triangular seat assembly; the triangular seat assembly is mounted above the corresponding needle roller assembly, and the upper mold assembly is fixedly arranged at the bottom of the corresponding needle roller assembly; the connecting rod assembly is a lever structure, the cylinder assembly drives the connecting rod assembly to perform reciprocating lateral lever movement, and the connecting rod assembly drives the upper mold assembly to reciprocate in the vertical direction through the triangular seat assembly; the consistency of welding strip flattening is improved, and the loss of parts is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic processing equipment, and more specifically, relates to a welding strip flattening mechanism. Background Art

[0002] During the battery string welding process, as the cell spacing gradually decreases from the conventional 1.8mm to 0.5mm, or even a negative spacing (e.g. -0.4mm), the cell becomes thinner and thinner (<130um). At the junction of two cells, the contact area between the cell and the welding ribbon is small, which can easily cause hidden cracks in the cell during lamination. In order to increase the force bearing area between the welding ribbon and the cell and prevent hidden cracks in the cell, the welding ribbon needs to be flattened. There are similar devices on the market, but the stability and consistency of the flattening are not good, especially the stability is prone to not being flattened over time. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a welding strip flattening mechanism, which can improve the consistency of welding strip flattening and reduce the loss of parts.

[0004] A welding strip flattening mechanism of the present invention is used for flattening welding strips, comprising a base assembly, an upper die unit and a lower die assembly; the lower die assembly is installed on the top of the base assembly; the upper die unit is installed above the lower die assembly;

[0005] The upper mold unit includes a cylinder assembly, a connecting rod assembly, a plurality of triangular seat assemblies, a plurality of needle roller assemblies and a plurality of upper mold assemblies; the output end of the cylinder assembly is installed and connected with the input end of the connecting rod assembly to drive the connecting rod assembly to operate; the output end of the connecting rod assembly is rotatably connected with the corresponding triangular seat assembly; the triangular seat assembly is mounted above the corresponding needle roller assembly, and the upper mold assembly is fixedly arranged at the bottom of the corresponding needle roller assembly; the connecting rod assembly is arranged as a lever structure, the cylinder assembly drives the connecting rod assembly to perform reciprocating lateral lever motion, and the connecting rod assembly drives the upper mold assembly to reciprocate in the vertical direction through the triangular seat assembly.

[0006] As a further improvement of the present invention, the connecting rod assembly includes a plurality of first connecting rods and a plurality of second connecting rods; the cylinder assembly includes a plurality of first cylinders and a plurality of second cylinders; a short joint is rotatably provided at one end of the first connecting rod, and the first connecting rod is installed and connected to the output end of the first cylinder through the short joint; the lower end of the first connecting rod away from the short joint is rotatably connected to the corresponding triangular seat assembly; a long joint is rotatably provided at one end of the second connecting rod, and the second connecting rod is installed and connected to the output end of the second cylinder through the long joint; the lower end of the second connecting rod away from the long joint is rotatably connected to the corresponding triangular seat assembly; the first connecting rod and the second connecting rod are arranged alternately.

[0007] As a further improvement of the present invention, the upper mold assembly includes a plurality of upper molds and an upper mold fixing seat; columns are fixedly arranged at both ends of the upper mold fixing seat; a fulcrum fixing seat is fixedly arranged between the columns, and the fulcrum fixing seat is arranged above the upper mold fixing seat;

[0008] A limiting groove is arranged at the bottom of the fulcrum fixing seat; the limiting groove cover is arranged above the first connecting rod and the second connecting rod; the connecting rod assembly also includes a connecting rod shaft, and the first connecting rod and the second connecting rod are arranged in the limiting groove through the connecting rod shaft.

[0009] As a further improvement of the present invention, the needle roller assembly is mounted above the upper die fixing seat; the top of the upper die passes through the upper die fixing seat and is installed and connected with the corresponding needle roller assembly;

[0010] The needle roller assembly includes a needle roller seat, a plurality of needle rollers and a needle roller cover; a second groove is provided on the top of the needle roller seat, and the needle rollers are arranged transversely in the second groove; the needle roller cover is arranged in the second groove to restrict the needle rollers in the second groove; the dimensions of both ends of the needle roller cover are smaller than the dimensions of the second groove to provide space for the needle rollers to roll in the second groove; a plurality of needle roller grooves are provided through the needle roller cover, and the tops of the needle rollers are provided with corresponding needle roller grooves.

[0011] As a further improvement of the present invention, the triangular seat assembly includes a triangular seat, and buckles are fixedly arranged at both ends of the triangular seat; the lower end of the buckle is extended downward along the bottom of the triangular seat to form a hanging block; the triangular seat assembly is slidably connected to the needle roller assembly through the hanging block.

[0012] As a further improvement of the present invention, a plurality of first spring grooves are provided on the top of the upper mold fixing seat; clamping blocks are fixedly provided at both ends of the upper end of the needle roller seat; the clamping blocks are slidably embedded in the hanging block; stop blocks are fixedly provided on both sides of the lower end of the needle roller seat; the stop blocks are mounted above the corresponding first spring grooves; a first compression spring is embedded in the first spring groove, one end of the first compression spring is abutted against the bottom of the first spring groove, and the top of the first compression spring is abutted against the bottom of the stop block.

[0013] As a further improvement of the present invention, the upper die fixing seat is provided with a plurality of upper die holes, and the upper die holes are arranged in a row and at intervals along the same direction to form an upper die hole row; the stop blocks on both sides of the needle roller seat are staggered, and the first spring grooves are staggered on the outer periphery of the upper die hole, corresponding to the stop blocks.

[0014] As a further improvement of the present invention, bracket assemblies are installed on both sides of the lower mold assembly; the bracket assemblies include a first bracket assembly and a second bracket assembly, and the first bracket assembly and the second bracket assembly are arranged opposite to each other; the lower mold assembly is installed between the first bracket assembly and the second bracket assembly;

[0015] The first bracket assembly includes a bottom plate and a plurality of positioning pins; the positioning pins are fixedly arranged on the top of the bottom plate; the positioning pins are matched in pairs to form a first welding ribbon channel for the welding ribbon to pass through;

[0016] The second bracket assembly includes a bracket plate and a bracket cover plate; the bracket cover plate is covered on the top of the bracket plate; a plurality of second welding belt channels are opened through the bracket cover plate from front to back; the second welding belt channels are arranged at intervals; a plurality of third welding belt channels are opened on the top of the bracket plate; the third welding belt channels are arranged at intervals; the second welding belt channels and the third welding belt channels are matched with each other up and down; the first welding belt channel, the second welding belt channel and the third welding belt channel are coaxially and concentrically arranged in the horizontal direction.

[0017] As a further improvement of the present invention, it also includes an upper hook claw assembly and a lower hook claw; the upper hook claw assembly is installed on the side of the fulcrum fixing seat away from the second cylinder, and is suspended above the second bracket assembly; the lower end of the lower hook claw is fixedly connected to the base assembly; the top of the lower hook claw passes through the gap between the bracket plate and the lower mold fixing seat, and is hooked to the upper hook claw assembly.

[0018] As a further improvement of the present invention, it also includes a clamping assembly, both ends of which are fixedly connected to the corresponding columns;

[0019] The clamping assembly includes a third cylinder, a clamping cross bar and a plurality of clamping guide pillars; a clamping connection block is fixedly provided at the output end of the third cylinder; the two ends of the clamping cross bar are respectively fixedly connected to the corresponding clamping connection blocks; the clamping cross bar is suspended above the first bracket assembly; the upper end of the clamping guide pillar passes through the clamping cross bar from bottom to top and is slidably connected to the clamping cross bar.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The consistency of the flattened thickness of the welding strip is guaranteed: the connecting rod assembly adopts a lever structure. Through the reciprocating lateral lever movement of the connecting rod assembly and the vertical movement of the triangular seat assembly, the upper mold assembly can perform stable reciprocating motion in the up and down directions; the connecting rod assembly uses the principle of lever force amplification to make the force transmission during the flattening process more uniform, thereby improving the thickness consistency of the welding strip during the flattening process; the lever structure amplifies the driving force of the cylinder and reduces the uneven force distribution during the flattening process, so that the flattened thickness of the welding strip can accurately meet the process requirements and avoid the phenomenon of uneven thickness.

[0022] 2. The continuous stability of the flattening thickness and length is enhanced: the rolling friction method is adopted between the triangle seat assembly and the needle roller assembly, which effectively reduces the wear between the parts and reduces the impact of friction on the stability of the mechanism; because the friction force of rolling friction is smaller than that of sliding friction, the accuracy and stability of the mechanism in long-term operation are improved; and the maintenance requirements caused by part wear are reduced.

[0023] 3. Stable structure to prevent deformation: The upper hook assembly and the lower hook assembly are used to connect the fulcrum fixing seat and the base assembly in a buckled manner, thereby avoiding the deformation problem caused by the cantilever being too long; this design ensures the structural stability of the flattening mechanism during operation, improves the flattening effect and will not be affected by deformation, thereby improving the stability and consistency of the flattening.

[0024] 4. The flattening effect is precisely controllable: The cylinder assembly achieves precise motion control by driving the connecting rod assembly. It can accurately adjust the size of the flattening force and the flattening stroke according to the process requirements, making the flattening effect of the welding strip more controllable and stable; this precise control mechanism can adapt to welding strips of different specifications and meet diverse process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is one of the schematic diagrams of the flattening mechanism structure of the present invention;

[0026] Figure 2 This is one of the partial structural schematic diagrams of the flattening mechanism of the present invention;

[0027] Figure 3 This is the second schematic diagram of the partial structure of the flattening mechanism of the present invention;

[0028] Figure 4 It is a schematic diagram of the explosion structure of the lower mold assembly of the present invention;

[0029] Figure 5 This is one of the schematic diagrams of the partial explosion structure of the bracket of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the upper mold unit of the present invention;

[0031] Figure 7 This is one of the schematic diagrams of the partial explosion structure of the upper mold unit of the present invention;

[0032] Figure 8 This is the second schematic diagram of the partial explosion structure of the upper mold unit of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the fulcrum fixing seat of the present invention;

[0034] Fig.10 This is the second schematic diagram of the flattening mechanism structure of the present invention;

[0035] Fig.11 It is a schematic diagram of a partial explosion structure of an upper hook claw assembly of the present invention;

[0036] Fig.12 This is the third structural schematic diagram of the flattening mechanism of the present invention;

[0037] Fig.13 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0038] Fig.14 It is a schematic diagram of the partial explosion structure of the clamping assembly of the present invention.

[0039] Description of the numbers in the figure:

[0040] 1. Base assembly; 11. Mounting plate; 12. Support side plate; 13. Base; 14. Up and down adjustment plate; 15. Pin shaft; 16. Pin limit block; 17. Iron chain; 18. Pin through shaft; 19. First bolt; 2. Clamping assembly; 21. Clamping cross bar; 22. Clamping guide column; 23. Third cylinder; 24. Clamping fixing plate; 25. Clamping connection block; 26. Slide rail; 27. Anti-sway guide column; 28. Anti-sway bracket; 29. ​​Anti-sway spring seat; 210. Second compression spring; 211. Third compression spring compression spring; 212, second guide sleeve; 213, retaining ring; 3, upper die unit; 31, upper die; 32, upper die fixing seat; 33, column; 34, first connecting rod; 35, second connecting rod; 36, first cylinder; 37, second cylinder; 38, first cylinder seat; 39, second cylinder seat; 310, short joint; 311, long joint; 312, fulcrum fixing seat; 3121, limit groove; 3123, isolation block; 31231, third groove; 313, cylinder back plate; 314, connecting rod shaft; 31 5. Triangular seat assembly; 3151. Triangular seat; 3152. Buckle; 316. Bushing cover; 317. First guide sleeve; 318. Needle roller assembly; 3181. Needle roller; 3182. Needle roller cover; 3183. Needle roller seat; 3184. Positioning pin; 3185. First compression spring; 4. Wire box; 5. Lower die assembly; 51. Lower die fixing seat; 511. Lower die groove; 52. Limiting piece; 521. Lower die hole; 53. Lower die; 6. Bracket assembly; 61. Bottom plate; 62. Bracket plate; 621 , the third welding strip channel; 63, positioning pin; 64, bracket cover; 641, the second welding strip channel; 642, rear cover; 643, front cover; 7, upper hook claw assembly; 71, upper hook claw; 72, shaft fixing seat; 73, shaft cover; 74, tension spring; 75, upper spring seat; 76, lower spring seat; 77, guide block; 78, limit pin; 79, wrench; 792, limit surface; 710, support seat; 711, hook claw shaft; 7111, first fixing hole; 8, lower hook claw; 9, welding strip. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with embodiments. The following embodiments are for explanation of the present invention but the present invention is not limited to the following embodiments.

[0042] Specific embodiment 1: Please refer to Figure 1-Figure 14A welding strip flattening mechanism comprises a base assembly 1, an upper mold unit 3 and a lower mold assembly 5; the lower mold assembly 5 is installed on the top of the base assembly 1; the upper mold unit 3 is installed above the lower mold assembly 5.

[0043] The upper mold unit 3 includes a cylinder assembly, a connecting rod assembly, a plurality of triangular seat assemblies 315, a plurality of needle roller assemblies 318 and a plurality of upper mold assemblies; the output end of the cylinder assembly is installed and connected with the input end of the connecting rod assembly to drive the connecting rod assembly to operate; the output end of the connecting rod assembly is rotatably connected with the corresponding triangular seat assembly 315; the triangular seat assembly 315 is mounted above the corresponding needle roller assembly 318, and the upper mold assembly is fixedly arranged at the bottom of the corresponding needle roller assembly 318; the connecting rod assembly is a lever structure arrangement, the cylinder assembly drives the connecting rod assembly to perform reciprocating lateral lever motion, and the connecting rod assembly drives the upper mold assembly to reciprocate in the vertical direction through the triangular seat assembly 315.

[0044] The upper mold assembly includes a plurality of upper molds 31 and an upper mold fixing seat 32; columns 33 are fixedly arranged at both ends of the upper mold fixing seat 32; a fulcrum fixing seat 312 is fixedly arranged between the columns 33, and the fulcrum fixing seat 312 is arranged above the upper mold fixing seat 32; the upper mold fixing seat 32 is provided with a plurality of upper mold holes, and each upper mold hole is arranged in a row and at intervals along the same direction to form an upper mold hole row.

[0045] Optionally, a bushing cover plate 316 is fixedly provided on the top of the upper mold fixing seat 32, and a plurality of third through holes are opened on the bushing cover plate 316. The third through holes are arranged in a row and at intervals along the same direction; the third through holes are concentrically arranged with the upper mold holes, and the diameter of the third through holes is greater than or equal to the diameter of the upper mold hole.

[0046] The connecting rod assembly includes a plurality of first connecting rods 34, a plurality of second connecting rods 35 and a connecting rod shaft 314; the cylinder assembly includes a plurality of first cylinders 36 and a plurality of second cylinders 37; a short joint 310 is rotatably provided at one end of the first connecting rod 34, and the first connecting rod 34 is installed and connected to the output end of the first cylinder 36 through the short joint 310; the lower end of the first connecting rod 34 away from the short joint 310 is rotatably connected to the corresponding triangular seat assembly 315; the upper end of the first connecting rod 34 away from the short joint 310 is sleeved on the outer periphery of the connecting rod shaft 314; a long joint 311 is rotatably provided at one end of the second connecting rod 35, and the second connecting rod 35 is installed and connected to the output end of the second cylinder 37 through the long joint 311; the lower end of the second connecting rod 35 away from the long joint 311 is rotatably connected to the corresponding triangular seat assembly 315; the upper end of the second connecting rod 35 away from the long joint 311 is sleeved on the outer periphery of the connecting rod shaft 314; the first connecting rod 34 and the second connecting rod 35 are arranged in an alternating manner.

[0047] Preferably, the output ends of the first cylinder 36 and the second cylinder 37 are both arranged downward.

[0048] The needle roller assembly 318 is mounted above the upper die fixing seat 32 ; the top of the upper die 31 passes through the upper die fixing seat 32 and is installed and connected with the corresponding needle roller assembly 318 .

[0049] Optionally, the needle roller assembly 318 is mounted above the corresponding upper die hole; the top of the upper die 31 passes through the corresponding upper die hole.

[0050] The triangular seat assembly 315 includes a triangular seat 3151, and buckles 3152 are fixedly provided at both ends of the triangular seat 3151; the lower end of the buckle 3152 is extended downward along the bottom of the triangular seat 3151 to form a hanging block; the triangular seat assembly 315 is slidably connected to the needle roller assembly 318 through the hanging block.

[0051] Optionally, a plurality of first spring grooves are provided on the top of the upper die fixing seat 32; and two first spring grooves are provided on the periphery of each upper die hole.

[0052] The needle roller assembly 318 includes a needle roller seat 3183, a plurality of needle rollers 3181 and a needle roller cover 3182; a second groove is provided at the top of the needle roller seat 3183, and the needle rollers 3181 are arranged transversely in the second groove; the needle roller cover 3182 is covered in the second groove to restrict the needle rollers 3181 in the second groove; the dimensions of both ends of the needle roller cover 3182 are smaller than the dimensions of the second groove to provide space for the needle rollers 3181 to roll in the second groove; a plurality of needle roller grooves are provided through the needle roller cover 3182, and the tops of the needle rollers 3181 are provided with corresponding needle roller grooves.

[0053] Preferably, the number of needle roller grooves is consistent with the number of needle rollers 3181.

[0054] Blocks are fixedly provided at both ends of the upper end of the needle roller seat 3183; the block is slidably embedded in the hanging block; stop blocks are fixedly provided on both sides of the lower end of the needle roller seat 3183; the stop blocks are mounted above the corresponding first spring groove; a first compression spring 3185 is embedded in the first spring groove, one end of the first compression spring 3185 is abutted against the bottom of the first spring groove, and the top of the first compression spring 3185 is abutted against the bottom of the stop block.

[0055] Optionally, the stop blocks on both sides of the needle roller seat 3183 are staggered, and the first spring grooves are staggered on the outer periphery of the upper mold hole, corresponding to the stop blocks.

[0056] The upper die 31 includes an upper pressing block and a fixing column; the fixing column is fixedly arranged on the top of the upper pressing block; the top of the fixing column passes through the upper die hole and is fixedly embedded in the bottom of the needle roller seat 3183.

[0057] Optionally, a first guide sleeve 317 is provided on the outer periphery of the fixing column.

[0058] A limiting groove 3121 is formed at the bottom of the fulcrum fixing seat 312 ; the limiting groove 3121 is arranged above the first connecting rod 34 and the second connecting rod 35 ; the first connecting rod 34 and the second connecting rod 35 are mounted in the limiting groove 3121 through the connecting rod shaft 314 .

[0059] A plurality of isolation blocks 3123 are fixedly arranged in the limit groove 3121 to divide the limit groove 3121 into a plurality of small limit grooves; the two ends of the first connecting rod 34 are respectively embedded in the fulcrum fixing seats 312 at the two ends of the limit groove 3121; the small limit groove cover is arranged above the corresponding first connecting rod 34 or the second connecting rod 35; a third groove 31231 is opened at the bottom of the isolation block 3123, and the third groove 31231 is arranged to cover the outer periphery of the top of the connecting rod shaft 314.

[0060] A cylinder back plate 313 is mounted on the top of the fulcrum fixing seat 312; rib plates are fixedly mounted at both ends of the cylinder back plate 313 to form a support frame; a first cylinder seat 38 and a second cylinder seat 39 are fixedly mounted on the top of the support frame; one end of the second cylinder seat 39 is arranged above the connection between the cylinder back plate 313 and the rib plate, the first cylinder seat 38 is arranged on the outside of the second cylinder seat 39, and one side of the first cylinder seat 38 is arranged in contact with the side wall of the second cylinder seat 39 away from the cylinder back plate 313.

[0061] The first cylinder 36 is fixedly disposed at the bottom of the first cylinder seat 38, and each first cylinder 36 is arranged at intervals at the bottom of the first cylinder seat 38; the second cylinder 37 is fixedly disposed at the bottom of the second cylinder seat 39, and each second cylinder 37 is arranged at intervals at the bottom of the second cylinder seat 39.

[0062] The base assembly 1 includes a mounting plate 11 ; support side plates 12 are fixedly provided at both ends of the top of the mounting plate 11 ; a base 13 is mounted on the top of the support side plates 12 ; and the lower mold assembly 5 is installed on the top of the base 13 .

[0063] Preferably, a first groove is provided at the top of the supporting side plate 12, and first protrusions are provided at both ends of the bottom of the base 13, and the first protrusions are mounted in the first groove; upper and lower adjustment plates 14 are respectively installed at both ends of the base 13; four first through holes are penetrated through the upper and lower adjustment plates 14; the first through holes are arranged up and down, and corresponding second through holes are respectively opened at both ends of the base 13; the base assembly 1 also includes a plurality of first bolts, the first bolts penetrate the first through holes and the second through holes in the upper row of the upper and lower adjustment plates 14 in sequence, and install the upper and lower adjustment plates 14 on the base 13; the second bolts are penetrated through the first through holes in the lower row of the upper and lower adjustment plates 14, and the second bolts are threadedly connected to the first through holes.

[0064] Bracket assemblies 6 are installed on both sides of the lower mold assembly 5; the bracket assembly 6 is installed on the top of the base 13; the bracket assembly 6 includes a first bracket assembly and a second bracket assembly, and the first bracket assembly and the second bracket assembly are arranged opposite to each other; the lower mold assembly 5 is installed between the first bracket assembly and the second bracket assembly.

[0065] The lower mold assembly 5 includes a lower mold fixing base 51, a limiting plate 52 and a plurality of lower molds 53; the limiting plate 52 is fixedly arranged on the top of the lower mold fixing base 51; the limiting plate 52 passes through a plurality of lower mold holes 521 from top to bottom, and the lower mold holes 521 are arranged in a row and at intervals along the same direction to form a lower mold hole row; the lower mold fixing base 51 passes through a lower mold groove 511 from top to bottom; the lower mold hole row cover is arranged above the lower mold groove 511; and each lower mold 53 passes through the corresponding lower mold hole 521 and the lower mold groove 511 in sequence.

[0066] The first bracket assembly includes a bottom plate 61 and a plurality of positioning pins 63 ; the positioning pins 63 are fixedly arranged on the top of the bottom plate 61 ; the positioning pins 63 are matched in pairs to form a first welding strip channel for the welding strip 9 to pass through.

[0067] The second bracket assembly includes a bracket plate 62 and a bracket cover plate 64; the bracket cover plate 64 is covered on the top of the bracket plate 62; a plurality of second welding strip channels 641 are opened from front to back through the bracket cover plate 64 for the welding strip 9 to pass through; the second welding strip channels 641 are arranged at intervals; a plurality of third welding strip channels 621 are opened on the top of the bracket plate 62 for the welding strip 9 to pass through; the third welding strip channels 621 are arranged at intervals; the second welding strip channels 641 and the third welding strip channels 621 are matched with each other up and down.

[0068] Optionally, the bracket cover plate 64 includes a front cover plate 643 and a rear cover plate 642, one side of the front cover plate 643 is fixedly connected to one side of the rear cover plate 642, and a first step is formed at the bottom of the connection between the front cover plate 643 and the rear cover plate 642; a second step is arranged on the bracket plate 62, and the first step and the second step are matched and abutted.

[0069] Preferably, the bracket plate 62 and the lower die fixing seat 51 are spaced apart from each other; and the side walls of the lower die fixing seat 51 and the bottom plate 61 are abutted against each other.

[0070] Optionally, the top of the front cover plate 643 is arranged to be inclined.

[0071] Optionally, the second welding ribbon channels 641 are arranged at intervals at the bottom of the rear cover plate 642; the third welding ribbon channels 621 are arranged at intervals at the top of the bracket plate 62; the front cover plate 643 is covered above the third welding ribbon channels 621, and the front cover plate 643 is abutted against the top of the bracket plate 62.

[0072] Preferably, the number of the first welding ribbon channels, the second welding ribbon channels 641 and the third welding ribbon channels is the same; the first welding ribbon channels, the second welding ribbon channels and the third welding ribbon channels are coaxially and concentrically arranged in the horizontal direction.

[0073] The welding strip flattening mechanism also includes an upper hook claw assembly 7 and a lower hook claw 8; the upper hook claw assembly 7 is installed and connected to the fulcrum fixing seat 312, and is suspended above the second bracket assembly; the lower end of the lower hook claw 8 is fixedly connected to the base 13; the top of the lower hook claw 8 passes through the gap between the bracket plate 62 and the lower mold fixing seat 51, and is hooked to the upper hook claw assembly 7.

[0074] The upper hook claw assembly 7 includes an upper hook claw 71, a shaft fixing seat 72, a shaft cover plate 73, a wrench 79, a support seat 710 and a hook claw shaft 711; the support seat 710 is fixedly arranged on the top of the fulcrum fixing seat 312; the shaft fixing seat 72 is fixedly arranged on the top of the support seat 710; the top of the upper hook claw 71 is bent or bent to form a fixing portion; a shaft groove is penetrated through the side wall of the fixing portion; a first wrench mounting groove is penetrated through the fixing portion from top to bottom to divide it into two parts, namely the first fixing portion and the second fixing portion; the upper hook claw 71 is sleeved on the outer periphery of the hook claw shaft 711 through the shaft groove; two first hook claw mounting grooves and a second wrench mounting grooves are provided on the top of the shaft fixing seat 72, and the first hook claw mounting grooves are respectively arranged on both sides of the second wrench mounting groove; a plurality of fourth grooves are provided on the top of the shaft fixing seat 72, and the fourth grooves are provided The grooves are arranged at intervals and coaxially; the hook claw shaft 711 is rotatably set in the fourth groove; the shaft cover 73 is fixedly covered on the top of the shaft fixing seat 72; the shaft cover 73 is provided with corresponding second hook claw mounting groove and third wrench mounting groove corresponding to the first hook claw mounting groove and the second wrench mounting groove; the second hook claw mounting groove is arranged above the corresponding first hook claw mounting groove to form a hook claw mounting groove; the third wrench mounting groove is arranged above the corresponding second wrench mounting groove; the first fixing part and the second fixing part are mounted in the corresponding mounting groove through the hook claw shaft 711; the first wrench mounting groove, the second wrench mounting groove and the third wrench mounting groove are overlapped in the vertical direction to form a wrench mounting groove; the upper end of the wrench 79 is bent or bent to form a mounting part; the mounting part is mounted in the wrench mounting groove and fixedly connected to the hook claw shaft 711.

[0075] A limiting surface 792 is provided on the side of the wrench 79 away from the upper hook claw 71, and the limiting surface 792 is inclined relative to the wrench 79, and the bottom of the limiting surface 792 is raised toward the upper hook claw 71 to form a raised portion; a slideway is provided on the side of the upper hook claw 71 away from the fulcrum fixing seat 312, and a positioning hole is provided on the slideway; two lower spring seats 76 are fixedly provided on the side of the upper hook claw 71 away from the fulcrum fixing seat 312, and upper spring seats 75 are fixedly provided on the fulcrum fixing seats 312 on both sides of the upper hook claw 71; in the vertical direction of the upper hook claw 71, the upper spring seat 75 is provided above the slideway, and the lower spring seat 76 is provided below the slideway and is located on both sides of the positioning hole.

[0076] The upper hook assembly 7 further includes two tension springs 74 , which are respectively arranged on both sides of the upper hook 71 , one end of the tension spring 74 is installed and connected to the upper spring seat 75 , and the other end of the tension spring 74 is installed and connected to the lower spring seat 76 .

[0077] A limit pin 78 is slidably arranged on the slide, and a guide block 77 is provided on the outer side cover of the limit pin 78, and the guide block 77 is slidably embedded in the slide; the limit pin 78 is arranged in a cross shape, and the upper and lower ends of the limit pin 78 in the vertical direction of the guide block 77 penetrate the guide block 77, and one end of the limit pin 78 in the horizontal direction of the guide block 77 penetrates the guide block 77, and cooperates with the limit surface 792 to control the locking and opening of the wrench 79.

[0078] Optionally, the top of the support seat 710 is tilted, and the bottom of the shaft fixing seat 72 is tilted to match the top of the support seat 710 .

[0079] The welding strip flattening mechanism further includes a clamping assembly 2 , and both ends of the clamping assembly 2 are fixedly connected to corresponding columns 33 .

[0080] The clamping assembly 2 includes two clamping fixing plates 24, one side of the clamping fixing plate 24 is fixedly arranged on the side wall of the corresponding column 33; a third cylinder 23 is fixedly arranged on the side wall of the clamping fixing plate 24 away from the column 33; the output end of the third cylinder 23 is arranged downward, and a clamping connecting block 25 is fixedly arranged on the output end of the third cylinder 23; a slide rail 26 is arranged between the clamping connecting block 25 and the clamping fixing plate 24; the slide rail 26 is fixedly arranged on the side wall of the clamping fixing plate 24 away from the column 33, and the clamping connecting block 25 is slidably arranged on the side of the slide rail 26 away from the clamping fixing plate 24.

[0081] The clamping assembly 2 also includes a clamping cross bar 21 and a plurality of clamping guide posts 22; the upper end of the clamping guide post 22 penetrates the clamping cross bar 21 from bottom to top and is slidably connected to the clamping cross bar 21; the two ends of the clamping cross bar 21 are respectively fixedly connected to the corresponding clamping connection blocks 25; the clamping cross bar 21 is suspended above the first bracket assembly; a plurality of fourth through holes are penetrated and opened on the clamping cross bar 21; the fourth through holes are arranged at intervals; the upper end of the clamping guide post 22 penetrates the corresponding fourth through hole from bottom to top and extends out of the top of the clamping cross bar 21; the clamping guide post 22 extends out of the clamping cross bar 21 A retaining ring 213 is provided on the outer periphery of the top part of the cross bar 21 to prevent the clamping guide column 22 from falling from the fourth through hole; a clamping block is fixedly provided on the lower end of the clamping guide column 22; a second guide sleeve 212 is provided on the outer periphery of the clamping guide column 22, and the second guide sleeve 212 is arranged below the retaining ring 213; a third compression spring 211 is provided on the clamping guide column 22 between the second guide sleeve 212 and the clamping block; the top of the third compression spring 211 is abutted against the bottom of the second guide sleeve 212, and the bottom of the third compression spring 211 is abutted against the top of the clamping block.

[0082] The clamping assembly 2 also includes an anti-sway assembly, which is fixedly arranged on the outer wall of one of the clamping fixing plates 24; the anti-sway assembly includes an anti-sway bracket 28, an anti-sway spring seat 29 and an anti-sway guide column 27; the anti-sway bracket 28 includes an upper bracket and a lower bracket; the upper bracket is fixedly arranged on the top of the lower bracket, and a third step is formed between the upper bracket and the lower bracket; the anti-sway spring seat 29 is suspended above the third step and is fixedly connected to the side wall corresponding to the upper bracket; a second spring groove is provided at the bottom of the anti-sway spring seat 29, and a second compression spring 210 is embedded in the second spring groove, and the top of the second compression spring 210 is abutted against the top of the second spring groove; a fifth through hole is provided through the third step, and the anti-sway guide column 27 is slidably arranged in the fifth through hole; the bottom of the second compression spring 210 is abutted against the top of the anti-sway guide column 27; the bottom of the anti-sway guide column 27 is abutted against the top of the base 13.

[0083] Preferably, the second spring slot and the fifth through hole are coaxially arranged.

[0084] Preferably, the retaining ring 213 is an elastic retaining ring.

[0085] Preferably, the number of the fourth through holes is consistent with the number of the pressing guide pillars 22 .

[0086] The above is only a preferred specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed in the present application according to the technical solution and improved ideas of the present application, which should be covered by the protection scope of the present application.

Claims

1. A welding strip flattening mechanism, used for flattening a welding strip (9), characterized in that: The mold assembly comprises a base assembly (1), an upper mold unit (3), a lower mold assembly (5), an upper hook assembly (7) and a lower hook assembly (8); the lower mold assembly (5) is mounted on the top of the base assembly (1); and the upper mold unit (3) is mounted above the lower mold assembly (5); The upper die unit (3) comprises a cylinder assembly, a connecting rod assembly, a plurality of triangular seat assemblies (315), a plurality of needle roller assemblies (318) and a plurality of upper die assemblies; the output end of the cylinder assembly is connected to the input end of the connecting rod assembly so as to drive the connecting rod assembly to operate; the output end of the connecting rod assembly is connected to the corresponding triangular seat assembly (315) in rotation; the triangular seat assembly (315) is mounted above the corresponding needle roller assembly (318), and the upper die assembly is fixedly arranged at the bottom of the corresponding needle roller assembly (318); the connecting rod assembly is a lever structure, the cylinder assembly drives the connecting rod assembly to perform reciprocating lateral lever motion, and the connecting rod assembly drives the upper die assembly to perform reciprocating motion in the vertical direction through the triangular seat assembly (315); The upper die assembly comprises an upper die fixing seat (32); columns (33) are fixedly arranged at both ends of the upper die fixing seat (32); a fulcrum fixing seat (312) is fixedly arranged between the columns (33); the upper hook claw assembly (7) is installed and connected to the fulcrum fixing seat (312); the lower end of the lower hook claw (8) is fixedly connected to the base assembly (1); the top of the lower hook claw (8) passes through the outer side of the lower die assembly (5) and is upwardly hooked and connected to the upper hook claw assembly (7); The upper hook claw assembly (7) comprises an upper hook claw (71) and two tension springs (74); two lower spring seats (76) are fixedly arranged on one side of the upper hook claw (71) away from the fulcrum fixing seat (312), and upper spring seats (75) are fixedly arranged on the fulcrum fixing seats (312) on both sides of the upper hook claw (71); the two tension springs (74) are respectively arranged on both sides of the upper hook claw (71), one end of the tension spring (74) is installed and connected to the corresponding upper spring seat (75), and the other end of the tension spring (74) is installed and connected to the corresponding lower spring seat (76).

2. A welding strip flattening mechanism according to claim 1, characterized in that: The connecting rod assembly comprises a plurality of first connecting rods (34) and a plurality of second connecting rods (35); the cylinder assembly comprises a plurality of first cylinders (36) and a plurality of second cylinders (37); a short joint (310) is rotatably provided at one end of the first connecting rod (34), and the first connecting rod (34) is installed and connected to the output end of the first cylinder (36) via the short joint (310); the lower end of the first connecting rod (34) away from the short joint (310) is rotatably connected to the corresponding triangular seat assembly (315); a long joint (311) is rotatably provided at one end of the second connecting rod (35), and the second connecting rod (35) is installed and connected to the output end of the second cylinder (37) via the long joint (311); the lower end of the second connecting rod (35) away from the long joint (311) is rotatably connected to the corresponding triangular seat assembly (315); the first connecting rod (34) and the second connecting rod (35) are arranged in a staggered manner.

3. A welding strip flattening mechanism according to claim 2, characterized in that: The upper die assembly comprises a plurality of upper dies (31); a fulcrum fixing seat (312) is arranged above the upper die fixing seat (32); A limiting groove (3121) is provided at the bottom of the fulcrum fixing seat (312); the limiting groove (3121) is arranged above the first connecting rod (34) and the second connecting rod (35); the connecting rod assembly also includes a connecting rod shaft (314), and the first connecting rod (34) and the second connecting rod (35) are mounted in the limiting groove (3121) via the connecting rod shaft (314).

4. A welding strip flattening mechanism according to claim 3, characterized in that: The needle roller assembly (318) is mounted above the upper die fixing seat (32); the top of the upper die (31) passes through the upper die fixing seat (32) and is installed and connected with the corresponding needle roller assembly (318); The needle roller assembly (318) comprises a needle roller seat (3183), a plurality of needle rollers (3181) and a needle roller cover (3182); a second groove is provided on the top of the needle roller seat (3183), and the needle rollers (3181) are arranged in a transverse arrangement in the second groove; the needle roller cover (3182) is arranged in the second groove to restrict the needle rollers (3181) in the second groove; the dimensions of both ends of the needle roller cover (3182) are smaller than the dimensions of the second groove to provide space for the needle rollers (3181) to roll in the second groove; a plurality of needle roller grooves are provided through the needle roller cover (3182), and the tops of the needle rollers (3181) are provided through the corresponding needle roller grooves.

5. The welding strip flattening mechanism according to claim 1, characterized in that: The triangular seat assembly (315) comprises a triangular seat (3151), and buckles (3152) are fixedly arranged at both ends of the triangular seat (3151); the lower end of the buckle (3152) is extended downward along the bottom of the triangular seat (3151) to form a hanging block; the triangular seat assembly (315) is slidably connected to the needle roller assembly (318) via the hanging block.

6. A welding strip flattening mechanism according to claim 5, characterized in that: A plurality of first spring grooves are provided at the top of the upper mold fixing seat (32); clamping blocks are fixedly provided at both ends of the upper end of the needle roller seat (3183); the clamping blocks are slidably embedded in the hanging block; stop blocks are fixedly provided at both sides of the lower end of the needle roller seat (3183); the stop blocks are mounted above the corresponding first spring grooves; a first compression spring (3185) is embedded in the first spring groove, one end of the first compression spring (3185) is abutted against the bottom of the first spring groove, and the top of the first compression spring (3185) is abutted against the bottom of the stop block.

7. A welding strip flattening mechanism according to claim 6, characterized in that: The upper die fixing seat (32) is provided with a plurality of upper die holes, and the upper die holes are arranged in a row and at intervals along the same direction to form an upper die hole row; the stop blocks on both sides of the needle roller seat (3183) are arranged in a staggered manner, and the first spring grooves are arranged in a staggered manner on the outer periphery of the upper die hole, corresponding to the stop blocks.

8. The welding strip flattening mechanism according to claim 1, characterized in that: Bracket assemblies (6) are installed on both sides of the lower mold assembly (5); the bracket assembly (6) comprises a first bracket assembly and a second bracket assembly, and the first bracket assembly and the second bracket assembly are arranged opposite to each other; the lower mold assembly (5) is installed between the first bracket assembly and the second bracket assembly; The first bracket assembly comprises a base plate (61) and a plurality of positioning pins (63); the positioning pins (63) are fixedly arranged on the top of the base plate (61); the positioning pins (63) are matched in pairs to form a first welding strip channel for the welding strip (9) to pass through; The second bracket assembly comprises a bracket plate (62) and a bracket cover plate (64); the bracket cover plate (64) is covered on the top of the bracket plate (62); a plurality of second welding strip channels (641) are opened through the bracket cover plate (64) from front to back; the second welding strip channels (641) are arranged at intervals; a plurality of third welding strip channels (621) are opened on the top of the bracket plate (62); the third welding strip channels (621) are arranged at intervals; the second welding strip channels (641) and the third welding strip channels (621) are matched with each other in the upper and lower directions; and the first welding strip channels, the second welding strip channels and the third welding strip channels are coaxially and concentrically arranged in the horizontal direction.

9. The welding strip flattening mechanism according to claim 8, characterized in that: The upper hook claw assembly (7) is suspended above the second bracket assembly; the top of the lower hook claw (8) passes through the gap between the bracket plate (62) and the lower mold fixing seat (51) and is hooked and connected to the upper hook claw assembly (7).

10. The welding strip flattening mechanism according to claim 8, characterized in that: It also includes a clamping assembly (2), with two ends of the clamping assembly (2) being fixedly connected to corresponding columns (33); The clamping assembly (2) comprises a third cylinder (23), a clamping cross bar (21) and a plurality of clamping guide pillars (22); a clamping connection block (25) is fixedly provided at the output end of the third cylinder (23); both ends of the clamping cross bar (21) are respectively fixedly connected to corresponding clamping connection blocks (25); the clamping cross bar (21) is suspended above the first bracket assembly; the upper end of the clamping guide pillar (22) penetrates the clamping cross bar (21) from bottom to top and is slidably connected to the clamping cross bar (21).

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