Multi-type welding machine

Abstract

The invention discloses a multi-type welding machine, and belongs to the technical field of welding, the multi-type welding machine comprises a rack, the upper side of the rack is provided with a continuous conveying mechanism for carrying out multi-station conveying, positioning and backflow conveying on a circuit board, and the continuous conveying mechanism is provided with a fixing tool mechanism for fixing the circuit board; a clamping mechanism used for clamping welding points of a circuit board and then assisting in welding is installed on the middle side of the rack, a pressing mechanism used for pressing and abutting the circuit board and then assisting in welding is installed on the right front side of the rack, and a continuous welding mechanism used for conducting continuous spot welding on the clamped or pressed circuit board is installed on the left front side of the rack. The continuous conveying mechanism comprises a conveying assembly and a positioning mechanism, and the conveying assembly is installed on the rack. In this way, multiple positioning can be carried out, the precision of follow-up welding and welding can be improved, and multi-type welding and welding can be carried out on workpieces through multiple fixing modes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fusion welding, and in particular to a multi-type fusion welding machine. BACKGROUND

[0002] Welding by circuit connection to generate current is collectively referred to as electric welding, which is a welding method that uses electric energy as a source of energy to achieve metal connection. The principle is to use the heat generated by the current passing through the conductor (resistance heat, arc heat, etc.) or other electric effects to make the welded metal reach a molten or plastic state, and then form a welded joint. One common type is resistance welding, which uses the resistance heat generated by the current passing through the contact of the workpiece as a heat source, while applying pressure to complete the welding, such as spot welding, butt welding, and seam welding.

[0003] Chinese patent CN111438431B proposes a fusion welding machine, which includes a product conveying mechanism, a product transfer mechanism, and a resistance welding device. The product transfer mechanism and the resistance welding device are located on the same side of the product conveying mechanism. The product conveying mechanism includes a conveying track for conveying products, a lifting assembly located below the conveying track, and a three-dimensional drive assembly connected to the cantilever. The three-dimensional drive assembly can drive the cantilever to move in three-dimensional space. The intermediate connecting piece is fixedly connected to the cantilever. The overturning drive assembly is fixedly connected to the intermediate connecting piece. The clamp assembly is used to clamp and fix the product lifted by the lifting assembly. The overturning drive assembly is drivingly connected to the clamp assembly, and the overturning drive assembly can drive the clamp assembly to overturn in the vertical direction.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent cannot perform multiple positioning to improve the accuracy of subsequent welding fusion, and cannot perform multi-type welding fusion on workpieces.

[0006] Therefore, the present application designs a multi-type fusion welding machine to solve the above problems. SUMMARY

[0007] In view of the above-mentioned shortcomings of the prior art, the present application provides a multi-type fusion welding machine.

[0008] To achieve the above purpose, the present application is realized by the following technical scheme:

[0009] A multi-type welding machine, comprising a rack, a continuous conveying mechanism for multi-station conveying and positioning and reflow conveying of a circuit board is installed on the upper side of the rack, a fixing tool mechanism for fixing the circuit board is installed on the continuous conveying mechanism, a clamping mechanism for clamping the welding points of the circuit board and assisting in welding is installed on the middle side of the rack, a pressing mechanism for pressing the circuit board and assisting in welding is installed on the right front side of the rack, and a continuous welding mechanism for continuous spot welding of the clamped or pressed circuit board is installed on the left front side of the rack.

[0010] The continuous conveying mechanism comprises a conveying assembly and a positioning mechanism, the conveying assembly is installed on the rack, and a plurality of positioning mechanisms are installed on the rack, the positioning mechanism comprises a carrier disc jacking positioning assembly, a workpiece jacking positioning assembly and a pressing positioning assembly, the carrier disc jacking positioning assembly is installed on the rack, the workpiece jacking positioning assembly is installed on the carrier disc jacking positioning assembly, and the pressing positioning assembly is located directly above the carrier disc jacking positioning assembly and is installed on the rack.

[0011] Further, the fixing tool mechanism comprises a carrier disc and a workpiece to be welded, the carrier disc is located at the output end of the first belt conveyor, and the workpiece to be welded is fixedly installed on the carrier disc and has a plurality of first welding points and second welding points.

[0012] Further, the conveying assembly comprises a first belt conveyor, a jacking transfer machine and a second belt conveyor, the first belt conveyor is fixedly installed on the rear side of the rack, a plurality of jacking transfer machines are fixedly installed on the rack, and the second belt conveyor is fixedly installed on the front side of the rack.

[0013] Further, the carrier disc jacking positioning assembly comprises a first fixed plate, a first sliding bracket, a positioning pin and a first cylinder, the first fixed plate is fixedly installed on the rack, the first sliding bracket is slidingly connected to the upper side of the first fixed plate, a plurality of positioning pins are fixedly installed on the first sliding bracket, the first cylinder is fixedly installed on the first fixed plate, and the output end of the first cylinder is fixedly connected to the first sliding bracket.

[0014] Further, the workpiece jacking positioning assembly comprises a second fixed plate, a second sliding bracket, a positioning rod and a second cylinder, the second fixed plate is fixedly installed on the lower side of the first fixed plate, the second sliding bracket is slidingly connected to the upper side of the second fixed plate, a plurality of positioning rods are fixedly installed on the upper side of the second sliding bracket, the second cylinder is fixedly installed on the second fixed plate, and the output end of the second cylinder is fixedly connected to the second sliding bracket.

[0015] Further, the lower pressing positioning assembly comprises a lower pressing clamping assembly and a transverse point clamping assembly, the lower pressing clamping assembly is installed on the rack, and the transverse point clamping assembly is installed on the lower pressing clamping assembly; the lower pressing clamping assembly comprises a third sliding support, a third air cylinder and an L-shaped fixing plate, the third sliding support is slidably connected to the rack, the third air cylinder is fixedly installed on the rack, and the output end of the third air cylinder is fixedly connected to the third sliding support; and a plurality of L-shaped fixing plates are fixedly installed on the third sliding support.

[0016] Further, the transverse point clamping assembly comprises a transverse sliding clamping assembly and a driving assembly, the transverse sliding clamping assembly is installed on the third sliding support, and the driving assembly is installed on the third sliding support; the transverse sliding clamping assembly comprises a guide rail, a sliding block and a cross plate, two guide rails are fixedly installed on the third sliding support, the sliding block is slidably connected to the guide rail, and the cross plate is fixedly installed on the two sliding block supports; a plurality of special-shaped holes are formed in the cross plate and used for accommodating welding points, and a plurality of first welding points on the workpiece to be welded are located in the special-shaped holes; the driving assembly comprises a sliding table air cylinder, a support plate and a connecting rod, the sliding table air cylinder is fixedly installed on the third sliding support, the support plate is fixedly installed on the output end of the sliding table air cylinder, and the connecting rod is fixedly installed on the sliding block; and one end of the connecting rod, which is away from the sliding block, is fixedly installed on the support plate.

[0017] Further, the clamping mechanism comprises a first mechanical arm, a clamping jaw air cylinder and a conductive chuck, the fixed end of the first mechanical arm is fixedly installed on the middle side of the rack, the clamping jaw air cylinder is fixedly installed on the output end of the first mechanical arm, and the conductive chuck is fixedly installed on the output end of the clamping jaw air cylinder.

[0018] Further, the pressing mechanism comprises a second mechanical arm, a special-shaped sliding frame, a conductive pressing block and a hydraulic buffer, the second mechanical arm is fixedly installed on the right front side of the rack, two special-shaped sliding frames are slidably connected to the output end of the second mechanical arm, the conductive pressing block is fixedly installed on the special-shaped sliding frame, and a plurality of hydraulic buffers have fixed ends fixedly installed on the output end of the second mechanical arm; and the buffer end of the hydraulic buffer is tightly attached to one end of the special-shaped sliding frame, which is away from the conductive pressing block.

[0019] Further, the continuous welding mechanism comprises a welding assembly and a secondary limiting assembly, the welding assembly is installed on the rack, and the secondary limiting assembly is installed on the welding assembly; the welding assembly comprises a third mechanical arm, a sliding support frame, a fourth cylinder and a conductive rod, the third mechanical arm is fixedly installed on the left front side of the rack, the sliding support frame is slidably connected to the output end of the third mechanical arm, the fourth cylinder is fixedly installed on the output end of the third mechanical arm, and the output end of the fourth cylinder is fixedly connected to the sliding support frame; and the conductive rod is fixedly installed on the sliding support frame.

[0020] Compared with the prior art, the present application has the following advantages: 1. The present application positions the carrier disc through the carrier disc jacking positioning assembly, positions the workpiece to be welded through the workpiece jacking positioning assembly, clamps and fixes the carrier disc through the downward pressing positioning assembly, moves the transverse sliding clamping assembly downward through the downward movement of the third sliding support, and moves the transverse plate of the transverse sliding clamping assembly downward to tightly adhere to the workpiece to be welded, so that the plurality of first welding points on the workpiece to be welded are located in the special-shaped opening, the support plate moves through the movement of the output end of the slide cylinder of the driving assembly, the support plate moves the connecting rod, the connecting rod moves the sliding block on the guide rail, the sliding block moves the transverse plate, the transverse plate moves to tightly adhere to the first welding point on one side of the special-shaped opening, and the first welding point is abutted and fixed, which is beneficial to multiple positioning and improves the accuracy of subsequent welding and fusion, and the transverse plate clamping positioning can also isolate the influence of high temperature during welding on the workpiece to be welded.

[0021] 2. The first mechanical arm output end of the clamping mechanism drives the clamping jaw cylinder and the conductive chuck to move to the first welding point of the workpiece to be welded, the clamping jaw cylinder drives the conductive chuck to clamp the first welding point, and the continuous welding mechanism welds it; the second mechanical arm output end of the pressing mechanism moves the conductive pressure block on the special-shaped sliding frame to the second welding point position, the second mechanical arm output end moves downward to move the special-shaped sliding frame and the conductive pressure block downward, the conductive pressure block moves downward to abut the second welding point position, at the same time, the special-shaped sliding frame moves upward under the action force of the conductive pressure block, the hydraulic buffer buffers the movement of the special-shaped sliding frame, and at the same time, the special-shaped sliding frame is continuously pressed, so that the conductive pressure block always abuts the second welding point position, and the continuous welding mechanism welds it, so that the workpiece is welded and fused in multiple types through multiple fixing modes. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0023] Figure 1 A perspective view of the present application;

[0024] Figure 2 A front view of the present application;

[0025] Figure 3 A top view of the present application;

[0026] Figure 4 A partial structure diagram of the continuous conveying mechanism of the present application Figure 1 ;

[0027] Figure 5 A partial structure diagram of the continuous conveying mechanism of the present application Figure 2 ;

[0028] Figure 6 A partial structure diagram of the continuous conveying mechanism of the present application Figure 3 ;

[0029] Figure 7 A partial structure diagram of the continuous conveying mechanism of the present application Figure 4 ;

[0030] Figure 8 A partial structure diagram of the continuous conveying mechanism of the present application Figure 5 ;

[0031] Figure 9 A partial structure diagram of the fixed tooling mechanism of the present application;

[0032] Figure 10 A partial structure diagram of the pressing mechanism of the present application;

[0033] Figure 11 A partial structure diagram of the pressing mechanism of the present application; Figure 10

[0034] Figure 12 A partial structure diagram of the clamping mechanism of the present application;

[0035] Figure 13 A partial structure diagram of the continuous welding mechanism of the present application;

[0036] Figure 14 A partial structure diagram of the continuous welding mechanism of the present application; Figure 10

[0037] ​​The labels in the figures respectively represent:

[0038] 1, rack; 2, continuous conveying mechanism; 21, first belt conveyor; 22, jacking transfer machine; 23, second belt conveyor; 24, first fixed plate; 25, first sliding support; 26, positioning pin; 27, first air cylinder; 28, second fixed plate; 29, second sliding support; 210, positioning rod; 211, second air cylinder; 212, third sliding support; 213, third air cylinder; 214, L-shaped fixed plate; 215, guide rail; 216, sliding block; 217, cross plate; 218, special-shaped hole; 219, sliding table air cylinder; 220, support plate; 221, connecting rod; 3, fixed tooling mechanism; 31, carrier plate; 32, workpiece to be welded; 33, first welding point to be welded; 34, second welding point to be welded; 4, clamping mechanism; 41, first mechanical arm; 42, clamping jaw air cylinder; 43, conductive chuck; 5, pressing mechanism; 51, second mechanical arm; 52, special-shaped sliding frame; 53, conductive pressing block; 54, hydraulic buffer; 6, continuous welding mechanism; 61, third mechanical arm; 62, sliding support frame; 63, fourth air cylinder; 64, conductive rod; 65, fifth air cylinder; 66, limiting plate; 67, limiting column. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings of the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0040] The present application will be further described below in combination with the embodiments.

[0041] In the following description, "left", "right", "front", "rear", "upper", and "lower" are oriented in the perspective of the front view.

[0042] Embodiment one: in some embodiments, please refer to Figures 1-14 A multi-type welding machine, comprising a rack 1, a continuous conveying mechanism 2 for multi-station conveying and positioning of a circuit board and reflow conveying is installed on the upper side of the rack 1, a fixed tooling mechanism 3 for fixing the circuit board is installed on the continuous conveying mechanism 2, a clamping mechanism 4 for clamping the welding points of the circuit board to assist welding is installed in the middle side of the rack 1, a pressing mechanism 5 for pressing the circuit board to assist welding after abutting is installed on the right front side of the rack 1, and a continuous welding mechanism 6 for continuous spot welding of the clamped or pressed circuit board is installed on the left front side of the rack 1.

[0043] AsFigure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown in the figure, the continuous conveying mechanism 2 comprises a conveying assembly and positioning mechanisms, the conveying assembly is installed on the rack 1, and a plurality of the positioning mechanisms are installed on the rack 1, the positioning mechanisms comprise a carrier disc 31 jacking positioning assembly, a workpiece jacking positioning assembly, and a downward pressing positioning assembly, the carrier disc 31 jacking positioning assembly is installed on the rack 1, the workpiece jacking positioning assembly is installed on the carrier disc 31 jacking positioning assembly, and the downward pressing positioning assembly is located directly above the carrier disc 31 jacking positioning assembly, and the downward pressing positioning assembly is installed on the rack 1.

[0044] As shown in the figure, Figure 9 The fixed tooling mechanism 3 comprises a carrier disc 31 and a workpiece to be welded 32, the carrier disc 31 is located at the output end of the first belt conveyor 21, and the workpiece to be welded 32 is fixedly installed on the carrier disc 31, and the workpiece to be welded 32 has a plurality of first welding point positions 33 and second welding point positions 34.

[0045] The conveying assembly comprises a first belt conveyor 21, a jacking transfer machine 22, and a second belt conveyor 23, the first belt conveyor 21 is fixedly installed on the rear side of the rack 1, two jacking transfer machines 22 are fixedly installed on the left and right sides of the rack 1, and the second belt conveyor 23 is fixedly installed on the front side of the rack 1, and the jacking transfer machine 22 is tightly attached to the side walls of the first belt conveyor 21 and the second belt conveyor 23 at the front and rear ends respectively.

[0046] The carrier disc 31 of the fixed tooling mechanism 3 is placed on the first belt conveyor 21 of the continuous conveying mechanism 2 by an external mechanical arm or manually, the carrier disc 31 is conveyed to the first welding station on the left side of the second belt conveyor 23 by the first belt conveyor 21 and the jacking transfer machine 22, after the first welding of the workpiece to be welded 32, the carrier disc 31 and the workpiece to be welded 32 are conveyed to the second welding station on the right side of the second belt conveyor 23 by the second belt conveyor 23, the workpiece to be welded 32 is welded for the second time, after the welding is completed and detected by manual or external visual recognition equipment, the welded workpiece is conveyed back to the first belt conveyor 21 by the jacking transfer machine 22, and is conveyed away by the first belt conveyor 21, if the workpiece has a point that is not welded well, the workpiece that is not welded well is conveyed back to the first welding station and the second welding station for re-welding by the first belt conveyor 21 and the jacking transfer machine 22.

[0047] The carrier disc 31 jacking positioning assembly comprises a first fixed plate 24, a first sliding support 25, positioning pins 26 and a first cylinder 27, the first fixed plate 24 is fixedly installed on the rack 1, the first sliding support 25 is slidingly connected to the upper side of the first fixed plate 24, a plurality of positioning pins 26 are fixedly installed on the first sliding support 25, and the first cylinder 27 is fixedly installed on the first fixed plate 24, and the output end of the first cylinder 27 is fixedly connected to the first sliding support 25.

[0048] The output end of the first cylinder 27 of the carrier disc 31 jacking positioning assembly is elongated to drive the first sliding support 25 to move upwards on the first fixed plate 24, the first sliding support 25 moves upwards to drive the positioning pins 26 to move upwards, and the carrier disc 31 is positioned.

[0049] The workpiece jacking positioning assembly comprises a second fixed plate 28, a second sliding support 29, positioning rods 210 and a second cylinder 211, the second fixed plate 28 is fixedly installed on the lower side of the first fixed plate 24, the second sliding support 29 is slidingly connected to the upper side of the second fixed plate 28, a plurality of positioning rods 210 are fixedly installed on the upper side of the second sliding support 29, and the second cylinder 211 is fixedly installed on the second fixed plate 28, and the output end of the second cylinder 211 is fixedly connected to the second sliding support 29.

[0050] The output end of the second cylinder 211 of the workpiece jacking positioning assembly is elongated to drive the second sliding support 29 to move upwards on the second fixed plate 28, the second sliding support 29 moves upwards to drive the positioning rods 210 to move upwards, and the workpiece to be welded 32 is positioned.

[0051] The down-pressing positioning assembly comprises a down-pressing clamping assembly and a transverse point-position clamping assembly, the down-pressing clamping assembly is installed on the rack 1, the transverse point-position clamping assembly is installed on the down-pressing clamping assembly, the down-pressing clamping assembly comprises a third sliding support 212, a third cylinder 213 and L-shaped fixed plates 214, the third sliding support 212 is slidingly connected to the rack 1, the third cylinder 213 is fixedly installed on the rack 1, the output end of the third cylinder 213 is fixedly connected to the third sliding support 212, and a plurality of L-shaped fixed plates 214 are fixedly installed on the third sliding support 212.

[0052] The output end of the third cylinder 213 of the down-pressing clamping assembly of the down-pressing positioning assembly is shortened to drive the third sliding support 212 to move downwards, the third sliding support 212 moves downwards to drive the L-shaped fixed plates 214 to move downwards, and the L-shaped fixed plates 214 move downwards to clamp and fix the carrier disc 31.

[0053] The transverse point clamping assembly comprises a transverse sliding clamping assembly and a driving assembly, the transverse sliding clamping assembly is installed on the third sliding support 212, and the driving assembly is installed on the third sliding support 212. The transverse sliding clamping assembly comprises guide rails 215, sliding blocks 216 and a transverse plate 217, the two guide rails 215 are fixedly installed on the third sliding support 212, the sliding blocks 216 are slidably connected to the guide rails 215, and the transverse plate 217 is fixedly installed on the two sliding block 216 supports. A plurality of special-shaped holes 218 are formed in the transverse plate 217, the special-shaped holes 218 are used for accommodating welding points, and the plurality of first to-be-welded points 33 on the to-be-welded workpiece 32 are located in the special-shaped holes 218. The driving assembly comprises a sliding table air cylinder 219, a support plate 220 and a connecting rod 221, the sliding table air cylinder 219 is fixedly installed on the third sliding support 212, the support plate 220 is fixedly installed on the output end of the sliding table air cylinder 219, and the connecting rod 221 is fixedly installed on the sliding block 216. One end of the connecting rod 221, which is away from the sliding block 216, is fixedly installed on the support plate 220.

[0054] The third sliding support 212 moves downward to drive the transverse sliding clamping assembly to move downward, the transverse plate 217 of the transverse sliding clamping assembly moves downward and tightly abuts against the to-be-welded workpiece 32, the plurality of first to-be-welded points 33 on the to-be-welded workpiece 32 are located in the special-shaped holes 218, the output end of the sliding table air cylinder 219 of the driving assembly moves to drive the support plate 220 to move, the support plate 220 moves to drive the connecting rod 221 to move, the connecting rod 221 moves to drive the sliding block 216 to slide on the guide rail 215, the sliding block 216 slides to drive the transverse plate 217 to move, and the transverse plate 217 moves to make one side of the special-shaped hole 218 tightly abut against the first to-be-welded point 33. The first to-be-welded point 33 is abutted and fixed, which is favorable for improving the stability and precision of subsequent welding fusion, and meanwhile, the transverse plate 217 can isolate the influence of high temperature during welding on the to-be-welded workpiece 32.

[0055] In some embodiments, as shown in Figures 1-14 As a preferred embodiment of the present application, the clamping mechanism 4 comprises a first mechanical arm 41, a clamping jaw air cylinder 42 and a conductive chuck 43. The fixed end of the first mechanical arm 41 is fixedly installed on the side of the rack 1. The clamping jaw air cylinder 42 is fixedly installed on the output end of the first mechanical arm 41. The conductive chuck 43 is fixedly installed on the output end of the clamping jaw air cylinder 42.

[0056] As shown in Figure 3 , Figure 12 The output end of the first mechanical arm 41 of the clamping mechanism 4 drives the clamping jaw air cylinder 42 and the conductive chuck 43 to move to the first to-be-welded point 33 of the to-be-welded workpiece 32. The clamping jaw air cylinder 42 drives the conductive chuck 43 to clamp the first to-be-welded point 33, which is favorable for the stability of subsequent welding fusion.

[0057] As shown in Figure 3 , Figure 10 , Figure 11 , the pressing mechanism 5 comprises: a second mechanical arm 51, a special-shaped sliding frame 52, a conductive pressure block 53 and a hydraulic buffer 54, the second mechanical arm 51 is fixedly installed on the right front side of the rack 1, two special-shaped sliding frames 52 are slidingly connected to the output end of the second mechanical arm 51, the conductive pressure block 53 is fixedly installed on the special-shaped sliding frame 52, and a plurality of hydraulic buffers 54 are fixedly installed at the output end of the second mechanical arm 51, and the buffer end of the hydraulic buffer 54 is tightly attached to one end of the special-shaped sliding frame 52 away from the conductive pressure block 53.

[0058] The output end of the second mechanical arm 51 of the pressing mechanism 5 drives the conductive pressure block 53 on the special-shaped sliding frame 52 to move to the position of the second welding point 34, the output end of the second mechanical arm 51 moves downward to drive the special-shaped sliding frame 52 and the conductive pressure block 53 to move downward, the conductive pressure block 53 moves downward to abut against the position of the second welding point 34, at the same time, the special-shaped sliding frame 52 moves upward under the reaction force of the conductive pressure block 53, the hydraulic buffer 54 buffers the movement of the special-shaped sliding frame 52, and at the same time keeps the special-shaped sliding frame 52 under continuous pressure, so that the conductive pressure block 53 always abuts against the position of the second welding point 34, which is beneficial to the stability of subsequent welding and fusion.

[0059] In some embodiments, as shown in Figures 1-14 , as a preferred embodiment of the present application, the continuous welding mechanism 6 comprises: a welding assembly and a secondary limiting assembly, the welding assembly is installed on the rack 1, and the secondary limiting assembly is installed on the welding assembly, the welding assembly comprises: a third mechanical arm 61, a sliding support frame 62, a fourth cylinder 63 and a conductive rod 64, the third mechanical arm 61 is fixedly installed on the left front side of the rack 1, the sliding support frame 62 is slidingly connected to the output end of the third mechanical arm 61, the fourth cylinder 63 is fixedly installed on the output end of the third mechanical arm, and the output end of the fourth cylinder 63 is fixedly connected to the sliding support frame 62, and the conductive rod 64 is fixedly installed on the sliding support frame 62, the secondary limiting assembly comprises: a fifth cylinder 65, a limiting plate 66 and a limiting column 67, the fifth cylinder 65 is fixedly installed on the sliding support frame 62, the limiting plate 66 is fixedly installed on the output end of the fifth cylinder 65, and the limiting column 67 is fixedly installed on the sliding support frame 62, the conductive rod 64 is connected to the output end of the external spot welding gun, the conductive chuck 43 and the conductive pressure block 53 are connected to another output end of the external spot welding gun, and a slot is formed in the limiting plate 66 for accommodating the limiting column 67.

[0060] As shown in Figure 13 , Figure 14As shown, the fifth cylinder 65 of the secondary limiting assembly of the continuous welding mechanism 6 outputs end shortens to drive the limiting plate 66 to move, the limiting plate 66 is slotted to move out of the limiting column 67, at this time the limiting column 67 is in the unlocking state, the sliding support frame 62 is in the unlocking state, the third mechanical arm 61 of the welding assembly outputs end moves to drive the sliding support frame 62 and the conductive rod 64 to move above the first welding point 33 or the second welding point 34, the fourth cylinder 63 outputs end moves to drive the sliding sliding support frame 62 and the conductive rod 64 to move downward, so that the conductive rod 64 is tightly attached to the first welding point 33 or the second welding point 34, and the welding is carried out by cooperating with the conductive chuck 43 or the conductive pressure block 53.

[0061] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-type welding machine, comprising a frame (1), characterized in that: A continuous conveying mechanism (2) for multi-station conveying, positioning, and reflow conveying of circuit boards is installed on the upper side of the frame (1); a fixing tooling mechanism (3) for fixing the circuit boards is installed on the continuous conveying mechanism (2); a clamping mechanism (4) for clamping the welding points of the circuit boards and then assisting in welding is installed on the middle side of the frame (1); a pressing mechanism (5) for pressing and abutting the circuit boards and then assisting in welding is installed on the right front side of the frame (1); and a continuous welding mechanism (6) for continuously spot welding the clamped or pressed circuit boards is installed on the left front side of the frame (1); The continuous conveying mechanism (2) comprises: a conveying assembly and a positioning mechanism, the conveying assembly is mounted on a frame (1), a plurality of positioning mechanisms are mounted on the frame (1), the positioning mechanism comprises: a carrier plate (31) lifting positioning assembly, a workpiece lifting positioning assembly and a downward positioning assembly, the carrier plate (31) lifting positioning assembly is mounted on the frame (1), the workpiece lifting positioning assembly is mounted on the carrier plate (31) lifting positioning assembly, the downward positioning assembly is located directly above the carrier plate (31) lifting positioning assembly, and the downward positioning assembly is mounted on the frame (1).

2. The multi-type welding machine according to claim 1, characterized in that: The fixed tooling mechanism (3) comprises: a carrier plate (31) and a workpiece to be welded (32); the carrier plate (31) is located at the output end of the first belt conveyor (21); the workpiece to be welded (32) is fixedly mounted on the carrier plate (31); and the workpiece to be welded (32) has a plurality of first weld points (33) and second weld points (34).

3. The multi-type welding machine according to claim 2, characterized in that: The conveying assembly comprises: a first belt conveyor (21), a lifting and transferring machine (22) and a second belt conveyor (23); the first belt conveyor (21) is fixedly mounted on the rear side of the frame (1); a plurality of the lifting and transferring machines (22) are fixedly mounted on the frame (1); the second belt conveyor (23) is fixedly mounted on the front side of the frame (1); the loading plate (31) lifting and positioning assembly comprises: a first fixed plate (24), a first sliding bracket (25), a positioning pin (26) and a first cylinder (27); the first fixed plate (24) is fixedly mounted on the frame (1); the first sliding bracket (25) is slidably connected to the upper side of the first fixed plate (24); a plurality of the positioning pins (26) are fixedly mounted on the first sliding bracket (25); the first cylinder (27) is fixedly mounted on the first fixed plate (24); and the output end of the first cylinder (27) is fixedly connected to the first sliding bracket (25).

4. The multi-type welding machine according to claim 3, characterized in that: The downward pressing positioning assembly comprises: a downward pressing clamping assembly and a transverse point clamping assembly; the downward pressing clamping assembly is mounted on the frame (1); the transverse point clamping assembly is mounted on the downward pressing clamping assembly; the downward pressing clamping assembly comprises: a third sliding bracket (212), a third cylinder (213) and an L-shaped fixing plate (214); the third sliding bracket (212) is slidably connected to the frame (1); the third cylinder (213) is fixedly mounted on the frame (1); the output end of the third cylinder (213) is fixedly connected to the third sliding bracket (212); and a plurality of L-shaped fixing plates (214) are fixedly mounted on the third sliding bracket (212).

5. The multi-type welding machine according to claim 4, characterized in that: The transverse point clamping assembly includes: a transverse sliding clamping assembly and a driving assembly, the transverse sliding clamping assembly is installed on the third sliding bracket (212), the driving assembly is installed on the third sliding bracket (212), the transverse sliding clamping assembly includes: a guide rail (215), a slider (216) and a transverse plate (217), the two guide rails (215) are fixedly installed on the third sliding bracket (212), the slider (216) is slidably connected to the guide rails (215), the transverse plate (217) is fixedly installed on the two slider (216) brackets, and a plurality of special-shaped openings (218) are opened on the transverse plate (217), and the plurality of first welding points (33) on the workpiece (32) to be welded are located in the special-shaped openings (218).

6. The multi-type welding machine according to claim 5, characterized in that: The driving assembly comprises: a slide cylinder (219), a support plate (220) and a connecting rod (221); the slide cylinder (219) is fixedly mounted on a third sliding bracket (212); the support plate (220) is fixedly mounted on an output end of the slide cylinder (219); the connecting rod (221) is fixedly mounted on a slider (216); and one end of the connecting rod (221) away from the slider (216) is fixedly mounted on the support plate (220).

7. The multi-type welding machine according to claim 1, characterized in that: The clamping mechanism (4) comprises: a first mechanical arm (41), a clamping claw cylinder (42) and a conductive clamp (43); the fixed end of the first mechanical arm (41) is fixedly mounted on the middle side of the frame (1); the clamping claw cylinder (42) is fixedly mounted on the output end of the first mechanical arm (41); and the conductive clamp (43) is fixedly mounted on the output end of the clamping claw cylinder (42).

8. The multi-type welding machine according to claim 1, characterized in that: The pressing mechanism (5) comprises: a second mechanical arm (51), a special-shaped sliding frame (52), a conductive voltage block (53) and a hydraulic buffer (54); the second mechanical arm (51) is fixedly mounted on the right front side of the frame (1); two special-shaped sliding frames (52) are slidably connected to the output end of the second mechanical arm (51); the conductive voltage block (53) is fixedly mounted on the special-shaped sliding frame (52); a plurality of fixed ends of the hydraulic buffers (54) are fixedly mounted on the output end of the second mechanical arm (51); and the buffer end of the hydraulic buffer (54) is closely attached to one end of the special-shaped sliding frame (52) away from the conductive voltage block (53).

9. The multi-type welding machine according to claim 1, characterized in that: The continuous welding mechanism (6) comprises: a welding assembly and a secondary limiting assembly, wherein the welding assembly is mounted on a frame (1), and the secondary limiting assembly is mounted on the welding assembly, and the welding assembly comprises: a third mechanical arm (61), a sliding support frame (62), a fourth cylinder (63) and a conductive rod (64), wherein the third mechanical arm (61) is fixedly mounted on the left front side of the frame (1), the sliding support frame (62) is slidably connected to the output end of the third mechanical arm (61), the fourth cylinder (63) is fixedly mounted on the output end of the third mechanical arm (61), the output end of the fourth cylinder (63) is fixedly connected to the sliding support frame (62), and the conductive rod (64) is fixedly mounted on the sliding support frame (62).

10. The multi-type welding machine according to claim 9, characterized in that: The secondary limiting assembly comprises: a fifth cylinder (65), a limiting plate (66) and a limiting column (67); the fifth cylinder (65) is fixedly mounted on the sliding support frame (62); the limiting plate (66) is fixedly mounted on the output end of the fifth cylinder (65); and the limiting column (67) is fixedly mounted on the sliding support frame (62).

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