Automatic welding machine

Abstract

The present invention discloses an automatic welding machine, which comprises a base and a loading manipulator arranged on the base, a plurality of welding platforms, a plurality of welding devices and a unloading manipulator, wherein the plurality of welding platforms are arranged side by side, the welding platform comprises a fixed frame and a first driving mechanism for driving the fixed frame to move along the Y axis; the welding device is arranged above the welding platform, the welding device comprises a welding head and a second driving mechanism for driving the welding head to approach or move away from the welding platform; the loading manipulator and the unloading manipulator are arranged on the same side of the plurality of welding platforms, and the loading manipulator and the unloading manipulator are used to load and unload the plurality of welding platforms. The automatic welding machine of the present invention is used for welding processing of LCM workpieces, and has high working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board welding processing, in particular to an automatic welding machine. Background Art

[0002] LCM (LCD Module) is a liquid crystal module, which generally includes LCD (Liquid Crystal Display), backlight, main FPC (Flexible Printed Circuit) and secondary FPC. In the processing and production of LCM, in order to achieve the electrical connection between the main FPC and the secondary FPC, the secondary FPC needs to be soldered to the reserved pads of the main FPC.

[0003] The welding process of the main FPC and the secondary FPC of LCM has multiple processes. During welding, the LCM workpiece is transferred through the welding platform and runs in sequence between the processing positions to perform the corresponding welding process operations respectively. However, the welding equipment currently used for LCM welding only has a single welding platform. After all the welding processes of one LCM workpiece are completed, the next LCM workpiece can be welded, which has low work efficiency. Summary of the invention

[0004] The main purpose of the present invention is to provide an automatic welding machine, aiming to solve the problem of low working efficiency of current LCM welding process.

[0005] To achieve the above-mentioned purpose, the present invention proposes an automatic welding machine, which includes a base and a loading robot arranged on the base, multiple welding platforms, multiple welding devices and a unloading robot, the multiple welding platforms are arranged side by side, the welding platform includes a fixed frame and a first driving mechanism for driving the fixed frame to move along the Y-axis; the welding device is arranged above the welding platform, the welding device includes a welding head and a second driving mechanism for driving the welding head to approach or move away from the welding platform; the loading robot and the unloading robot are arranged on the same side of the multiple welding platforms, and the loading robot and the unloading robot are used to load and unload the multiple welding platforms.

[0006] Preferably, the welding device also includes a mounting frame connected to the output actuator end of the second driving mechanism and a first driving assembly arranged on the mounting frame, the welding head includes a pressure welding head and a drag welding head arranged on the mounting frame, and the output actuator end of the first driving assembly is connected to the pressure welding head to drive the pressure welding head to move along the Z axis.

[0007] Preferably, the welding platform also includes a first workpiece adsorption plate, a pressure plate, a clamping mechanism, a third driving mechanism and a fourth driving mechanism arranged on the fixed frame, the output execution end of the third driving mechanism is connected to the clamping mechanism, and the output execution end of the fourth driving mechanism is connected to the pressure plate.

[0008] Preferably, the clamping mechanism comprises a fixing seat, two clamping plates and a driving member, one of the two clamping plates is fixed on the fixing seat, and the other is connected to the output execution end of the driving member.

[0009] Preferably, the automatic welding machine further comprises a CCD camera and a fifth driving mechanism located above the welding platform, wherein the output execution end of the fifth driving mechanism is connected to the CCD camera to drive the CCD camera to move along the X-axis.

[0010] Preferably, the automatic welding machine also includes a flux coating mechanism connected to the output execution end of the fifth driving mechanism, the flux coating mechanism is arranged side by side with the CCD camera, and the flux coating mechanism includes a coating head and a second driving component for driving the coating head to move along the Z axis.

[0011] Preferably, the automatic welding machine also includes a positioning device located on one side of the loading robot for adjusting the position of the workpiece, and the positioning device includes a sixth driving mechanism, a movable seat connected to the output execution end of the sixth driving mechanism, and a positioning assembly arranged on the movable seat.

[0012] Preferably, the positioning assembly includes a second workpiece adsorption plate, a baffle, a first positioning portion arranged opposite to the baffle, and two second positioning portions arranged opposite to each other. The baffle, the first positioning portion and the two second positioning portions surround the side of the second workpiece adsorption plate. The first positioning portion can move toward or away from the baffle, and the two second positioning portions can move toward or away from each other.

[0013] Preferably, the automatic welding machine also includes a conveying device and a material picking robot arranged above the conveying device, the alignment device is located at the end of the conveying device, and the material picking robot is used to transfer the workpiece on the conveying device to the second workpiece adsorption plate.

[0014] Preferably, the automatic welding machine also includes a pad cleaning device located above the plurality of welding platforms, the pad cleaning device including a seventh driving mechanism, a mounting plate connected to the output execution end of the seventh driving mechanism, and a cleaning assembly arranged on the mounting plate.

[0015] The beneficial effect of the technical solution of the present invention is that the automatic welding machine is used for the welding processing of the main FPC and the secondary FPC of the LCM workpiece. During welding, the loading robot grabs the workpiece and places it on the fixed frame of each welding platform. The fixed frame carries the workpiece and moves to the welding position under the drive of the first driving mechanism, and the welding device welds the workpiece; the unloading robot grabs the welded workpiece from each welding platform according to the loading sequence of the loading robot to unload. The automatic welding machine adopts multiple welding platforms, and the multiple welding platforms are divided into groups. Each group of welding platforms is equipped with a welding device to process the workpiece at the same time, and the loading and unloading are coordinated by the loading and unloading robot, staggering the welding time of the workpiece on the welding platform in each group, and the welding device cooperates with each welding platform in the group to weld the workpiece uninterruptedly, which greatly improves the work efficiency, increases the welding scale of the welding equipment, and improves the economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of an automatic welding machine of the present invention;

[0017] Figure 2 It is an orthographic projection view of the automatic welding machine of the present invention;

[0018] Figure 3 It is a schematic diagram of the assembly structure of the loading manipulator and the unloading manipulator of the automatic welding machine of the present invention;

[0019] Figure 4 It is a schematic diagram of a part of the structure of the automatic welding machine of the present invention;

[0020] Figure 5 It is a structural schematic diagram of a welding platform of the automatic welding machine of the present invention;

[0021] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0022] Figure 7 It is a structural schematic diagram of a welding device of an automatic welding machine of the present invention;

[0023] Figure 8 It is a structural schematic diagram of another part of the automatic welding machine of the present invention;

[0024] Fig. 9 It is a structural schematic diagram of the alignment device of the automatic welding machine of the present invention;

[0025] Fig.10 It is a structural schematic diagram of the material taking manipulator of the automatic welding machine of the present invention;

[0026] Fig.11 It is a partial structural schematic diagram of the pad cleaning device of the automatic welding machine of the present invention. DETAILED DESCRIPTION

[0027] The scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The present invention provides an automatic welding machine, referring to Figure 1 and Figure 2 The automatic welding machine includes a base 100 and a loading robot 200 arranged on the base 100, multiple welding platforms 300, multiple welding devices 400 and a unloading robot 500, multiple welding platforms 300 are arranged side by side, and the welding platform 300 includes a fixed frame 310 and a first driving mechanism 320 for driving the fixed frame 310 to move along the Y axis; the welding device 400 is arranged above the welding platform 300, and the welding device 400 includes a welding head 410 and a second driving mechanism 420 for driving the welding head 410 to approach or move away from the welding platform 300; the loading robot 200 and the unloading robot 500 are arranged on the same side of the multiple welding platforms 300, and the loading robot 200 and the unloading robot 500 are used to load and unload the multiple welding platforms 300.

[0029] The automatic welding machine of the present invention is used for automatic welding processing of LCM workpieces, specifically welding the secondary FPC of the LCM workpiece to the pad of the main FPC. The automatic welding machine includes a base 100, a loading manipulator 200, multiple welding platforms 300, multiple welding devices 400 and a unloading manipulator 500, wherein:

[0030] The base 100 may be a square base, and the loading robot 200, the welding platform 300, the welding device 400 and the unloading robot 500 are all installed on the base 100. There are multiple welding platforms 300 arranged side by side along the X axis, referring to Figure 5 The welding platform 300 includes a fixing frame 310 and a first driving mechanism 320. The fixing frame 310 is used to carry the workpiece, and the first driving mechanism 320 is used to drive the fixing frame 310 to move along the Y axis. Driven by the first driving mechanism 320, the welding platform 300 can transfer the workpiece to the welding device 400 for welding. Figure 5 The first driving mechanism 320 can adopt a combined driving structure of a motor and a lead screw.

[0031] Reference Figure 1 The welding device 400 is located above the welding platform 300, and the welding device 400 welds the workpiece on the welding platform 300. Figure 7The welding device 400 includes a welding head 410 and a second driving mechanism 420. The welding head 410 can be a pressure welding head or a drag welding head, or the welding head 410 includes a pressure welding head and a drag welding head. When the welding device 400 has a pressure welding head, it can be equipped with a transformer host connected to the pressure welding head with a conductive wire to control the heating of the pressure welding head through the transformer host; when the welding device 400 has a drag welding head, it can be equipped with a tin feeding needle and a tin feeder connected to the tin feeding needle to realize automatic tin feeding, so as to cooperate with the drag welding head to perform drag welding. The second driving mechanism 420 is used to drive the welding head 410 to move. The second driving mechanism 420 includes an X-axis module and a Z-axis module connected to the output execution end of the X-axis module. The welding head 410 is connected to the output execution end of the Z-axis module. Driven by the second driving mechanism 420, the welding head 410 can move along the X-axis between the welding platforms 300, and can also move along the Z-axis to weld the workpiece located on the welding platform 300. Refer to Figure 1 , Figure 2 and Figure 4 A gantry may be provided on the base to uniformly install a plurality of welding devices 400 through the gantry.

[0032] Reference Figure 1 and Figure 2 The loading robot 200 and the unloading robot 500 are located on the same side of the plurality of welding platforms 300. The loading robot 200 is used to transfer the workpiece to the welding platform 300 for loading, and the unloading robot 500 is used to remove the workpiece from the welding platform 300 for unloading. Figure 3 The loading robot 200 and the unloading robot 500 are driven by the same linear motor, and the guide rail of the linear motor is arranged along the X axis. The loading robot 200 and the unloading robot 500 are both provided with a plurality of suction nozzles to suck the LCD and FPC of the workpiece through the plurality of suction nozzles.

[0033] In practical applications, refer to Figure 1 and Figure 2, the automatic welding machine is equipped with six welding platforms 300 and three welding devices 400. The six welding platforms 300 are divided into three groups in turn, each group includes two welding platforms 300, and the three welding devices 400 are set corresponding to the three groups of welding platforms 300. Along the X-axis direction from the unloading manipulator 500 to the loading manipulator 200, there are the first group, the second group and the third group, and each group of welding platforms 300 is divided into the first welding platform and the second welding platform. During welding processing, the loading manipulator 200 successively grabs the workpiece to the first welding platform of the first group, the second group and the third group, and then grabs the workpiece to the second welding platform in this order, and cycles the loading in this way; the welding device 400 first welds the workpiece on the first welding platform, and then welds the workpiece on the second welding platform; the unloading manipulator 500 cooperates with the loading manipulator 200 to unload the material according to the loading order of the loading manipulator 200, and removes the welded workpiece from the welding platform 300.

[0034] The automatic welding machine adopts a plurality of welding platforms 300, and the plurality of welding platforms 300 are divided into groups. Each group of welding platforms 300 is equipped with a welding device 400 to process workpieces at the same time, and the loading and unloading are coordinated by the loading and unloading robot 200 and the unloading robot 500, and the welding time of the workpieces on the welding platforms 300 in each group is staggered. The welding device 400 cooperates with each welding platform 300 in the group to weld the workpieces non-stop, which greatly improves the work efficiency, increases the welding scale of the welding equipment, and improves the economic benefits.

[0035] In a preferred embodiment, referring to Figure 7 The welding device 400 also includes a mounting frame 430 connected to the output execution end of the second driving mechanism 420 and a first driving assembly 440 disposed on the mounting frame 430. The welding head 410 includes a pressure welding head 411 and a drag welding head 412 disposed on the mounting frame 430. The output execution end of the first driving assembly 440 is connected to the pressure welding head 411 to drive the pressure welding head 411 to move along the Z axis.

[0036] As can be seen from the previous embodiment, the welding device 400 is used to weld the workpieces on each welding platform 300 in the corresponding welding platform group, specifically the welding between the main FPC and the secondary FPC of the LCM. In this embodiment, in addition to the second driving mechanism 420 and the welding head 410, the welding device 400 also includes a mounting frame 430 and a first driving assembly 440. The welding head 410 includes a pressure welding head 411 and a drag welding head 412, both of which are located on the mounting frame 430. The drag welding head 412 is fixedly arranged on the mounting frame 430, and the pressure welding head 411 is driven by the first driving assembly 440 to move along the Z axis for pressure welding. The drag welding process and the pressure welding process do not interfere with each other. The first driving assembly 440 can use a pressure stroke cylinder to achieve control of the downward pressure and movement stroke of the pressure welding head 411.

[0037] In a preferred embodiment, referring to Figure 5 and Figure 6 The welding platform 300 also includes a first workpiece adsorption plate 330, a pressing plate 340, a clamping mechanism 350, a third driving mechanism 360 and a fourth driving mechanism 370 arranged on the fixed frame 310, the output execution end of the third driving mechanism 360 is connected to the clamping mechanism 350, and the output execution end of the fourth driving mechanism 370 is connected to the pressing plate 340.

[0038] In the welding platform 300 of this embodiment, the first workpiece adsorption plate 330, the pressure plate 340, the clamping mechanism 350, the third driving mechanism 360 and the fourth driving mechanism 370 are all installed on the fixed frame 310. The first workpiece adsorption plate 330 is used to place the workpiece, and it adsorbs the LCD of the workpiece by vacuum adsorption to fix the workpiece. The pressure plate 340 is used to hold the main FPC of the workpiece, and the clamping mechanism 350 is used to clamp the pins of the secondary FPC to align them with the pads of the main FPC. The third driving mechanism 360 is used to drive the clamping mechanism 350 to move, and the fourth driving mechanism 370 is used to drive the pressure plate 340 to move. Both the third driving mechanism and the fourth driving mechanism can adopt an XYZ three-axis driving module.

[0039] Further, refer to Figure 6 The clamping mechanism 350 includes a fixed seat 351, two clamping plates 352 and a driving member 353. One of the two clamping plates 352 is fixed on the fixed seat 351, and the other is connected to the output execution end of the driving member 353. Specifically, the two clamping plates 352 are arranged up and down, that is, they are divided into an upper clamping plate and a lower clamping plate, and the lower clamping plate is installed on the fixed seat 351 by screws. The driving member 353 is used to drive the upper clamping plate to move up and down. The driving member 353 adopts a cylinder. The cylinder is vertically arranged and its cylinder body is fixed on the fixed seat 351. The upper clamping plate is installed on the piston rod of the cylinder. The upper clamping plate moves up and down through the drive of the cylinder to open or close with the lower clamping plate, so as to realize the loosening and clamping of the secondary FPC pins. The structure is simple and the clamping is stable.

[0040] In a preferred embodiment, referring to Figure 8The automatic welding machine also includes a CCD camera 600 and a fifth driving mechanism 700 located above the welding platform 300. The output execution end of the fifth driving mechanism 700 is connected to the CCD camera 600 to drive the CCD camera 600 to move along the X-axis. The CCD camera 600 is used to obtain the image of the workpiece on the welding platform 300, so as to cooperate with the welding platform 300 to realize the connection position adjustment of the pad pins of the main FPC and the secondary FPC of the workpiece and the welding position adjustment of the workpiece on the welding platform 300. Driven by the fifth driving mechanism 700, the CCD camera 600 can move along the X-axis above the welding platform 300 to perform CCD detection on the workpieces on multiple welding platforms 300. Corresponding to the above embodiment, one CCD camera 600 and a fifth driving mechanism 700 are correspondingly set for two welding platforms 300. Referring to Figure 8 The fifth driving mechanism 700 can adopt a combined driving structure of a motor, a lead screw and a guide rail slider. The nut seat of the lead screw is connected to a moving frame 10, and the CCD camera 600 is installed on the moving frame 10.

[0041] Furthermore, the automatic welding machine also includes a flux coating mechanism 800 connected to the output execution end of the fifth driving mechanism 700, the flux coating mechanism 800 is arranged side by side with the CCD camera 600, and the flux coating mechanism 800 includes a coating head 810 and a second driving component 820 for driving the coating head 810 to move along the Z axis. In the drag soldering process, after the CCD camera 600 is aligned, the flux needs to be coated on the main FPC pad, and the main function of the flux coating mechanism 800 is to coat the flux on the main FPC pad of the workpiece. The flux coating mechanism 800 and the CCD camera 600 are located on the mobile frame 10 and arranged side by side, and the two can be driven together by the fifth driving mechanism 700. The flux coating mechanism 800 includes a coating head 810 and a second driving component 820, and the second driving component 820 is used to drive the coating head 810 to move along the Z axis to apply the flux, so that the CCD alignment and flux coating processes do not interfere with each other. The second driving assembly may adopt a cylinder driving structure.

[0042] In a preferred embodiment, referring to Figure 1 , Figure 2 and Fig. 9The automatic welding machine also includes a positioning device 900 located on one side of the feeding manipulator 200 for adjusting the position of the workpiece. The positioning device 900 includes a sixth driving mechanism 910, a moving seat 920 connected to the output execution end of the sixth driving mechanism 910, and a positioning assembly 930 arranged on the moving seat 920. The positioning device 900 of this embodiment adjusts the position of the workpiece to ensure the consistency of the workpiece transferred by the feeding manipulator 200, and the position of the workpiece placed on the welding platform 300 is accurate, thereby improving the stability of the welding operation. The positioning assembly 930 is arranged on the moving seat 920, so as to drive the moving seat 920 through the sixth driving mechanism 910 to indirectly drive the positioning assembly 930 to move. The sixth driving mechanism 910 can adopt a driving structure of a motor, a transmission belt, a lead screw and a guide rail slider. Under the drive of the sixth driving mechanism 910, the moving seat 920 and the positioning assembly 930 can realize movement in the X-axis direction.

[0043] Further, refer to Fig. 9 The positioning assembly 930 includes a second workpiece adsorption plate 931, a baffle 932, a first positioning portion 933 arranged opposite to the baffle 932, and two second positioning portions 934 arranged opposite to each other. The baffle 932, the first positioning portion 933 and the two second positioning portions 934 surround the side of the second workpiece adsorption plate 931. The first positioning portion 933 can move toward or away from the baffle 932, and the two second positioning portions 934 can move toward or away from each other. The workpiece is positioned by adsorbing the workpiece through the second workpiece adsorption plate 931, and limiting the four sides of the LCD of the workpiece through the baffle 932, the first positioning portion 933 and the two second positioning portions 934. Specifically, refer to Fig.10 When the workpiece is aligned, the workpiece is placed on the second workpiece adsorption plate 931. The first positioning part 933 moves toward the baffle 932 under the drive of the third driving assembly 20 and contacts and pushes the workpiece, so that the workpiece and the baffle 932 and the first positioning part 933 are kept in contact with each other. At the same time, the two second positioning parts 934 move toward each other under the drive of the fourth driving assembly 30, so that the LCD of the workpiece and the two second positioning parts 934 are kept in contact with each other, and the workpiece is adsorbed by the second workpiece adsorption plate 931, so that the positioning is completed, and the first positioning part 933 and the two second positioning parts 934 are reset immediately. Among them, the first positioning part 933 and the second positioning part 934 are both provided with a plurality of small rollers arranged in sequence, so as to achieve friendly contact with the workpiece through the rollers. Among them, the third driving assembly 20 and the fourth driving assembly 30 adopt a combined drive structure of a motor, a synchronous belt and a guide rail slider.

[0044] In a preferred embodiment, referring to Figure 1 and Figure 2The automatic welding machine also includes a conveying device 1000 and a material taking manipulator 1100 disposed above the conveying device. The alignment device 900 is located at the end of the conveying device 1000. The material taking manipulator 1100 is used to transfer the workpiece on the conveying device 1000 to the second workpiece adsorption plate 931. The conveying device 1000 and the material taking manipulator 1100 are both disposed on the base 100. The material taking manipulator 1100 is located above the conveying device 1000. Fig.10 The structure of the material-retrieving robot can refer to the structural settings of the loading robot 200 and the unloading robot 500 of the above embodiments, and will not be elaborated here. Preferably, the conveying device 1000 adopts a conveyor belt. In a specific production process, the starting end of the conveying device 1000 can dock with the LCM production line to receive the workpiece, and transfer the workpiece from the conveying device 1000 to the second workpiece adsorption plate 931 of the alignment device 900 through the material-retrieving robot 1100, with a high degree of automation and high production efficiency.

[0045] In a preferred embodiment, referring to Figure 1 , Figure 2 and Fig.11 The automatic welding machine also includes a pad cleaning device 1200 located above the plurality of welding platforms 300. The pad cleaning device 1200 includes a seventh driving mechanism, a mounting plate 1210 connected to the output execution end of the seventh driving mechanism, and a cleaning component 1220 disposed on the mounting plate 1210.

[0046] The pad cleaning device 1200 is used to clean the main FPC pad of the LCM workpiece. Pad cleaning is a processing step before CCD alignment. By cleaning the FPC pad 1200, the accuracy of CCD alignment can be improved and the subsequent welding effect can be guaranteed. The pad cleaning device 1200 includes a seventh driving mechanism, a mounting plate 1210, and a cleaning component 1220. The seventh driving mechanism drives the mounting plate 1210 to indirectly drive the cleaning component to move between multiple welding platforms 300, thereby cleaning the workpieces on each welding platform 300. Among them, the seventh driving mechanism can use a linear motor arranged along the X-axis direction. Fig.11The cleaning component 1220 includes an active turntable 1221, a plurality of receiving wheels 1222, a cleaning head 1223, a driven turntable 1224 and a wiping belt 1225. The active turntable 1221 and the driven turntable 1224 are arranged side by side above the cleaning head 1223. The wiping belt 1225 is wrapped around the driven turntable 1224 and can be recovered to the active turntable 1221 through the cleaning head 1223 and a plurality of receiving wheels 1222 under the drive of the active turntable 1221. A receiving block is provided in the cleaning head 1223 for cooperating with the wiping belt 1225 to wipe the main FPC pad. The active turntable 1221 is connected to a reducer, and the driven turntable 1224 is connected to a tension controller. The tension controller is used to provide a restraining force to the driven turntable 1224, so as to cooperate with the active turntable 1221 to keep the wiping belt 1225 in a taut state. Among them, the tension controller can adopt an electric damper or a magnetic damper. Several receiving wheels 1222 cooperate to receive the wiping tape 1225, and their arrangement position and quantity can be set according to actual conditions. The cleaning head 1223 is used to clean the main FPC pad. Specifically, the receiving block provided in the cleaning head 1223 abuts against the wiping tape 1225 to cooperate with it to wipe the main FPC pad. In addition, an alcohol drip hole is provided at the bottom of the receiving block, and a control valve 1226 is connected through a pipeline to realize the control of alcohol delivery. It is understandable that wiping the main FPC pad with alcohol and the wiping tape 1225 can improve the cleanliness of the pad, help subsequent welding operations, and improve welding performance. A first electric eye 1227 is provided above the driven turntable 1224, and the wiping tape 1225 on the driven turntable 1224 is monitored by the first electric eye 1227, so that after the wiping tape 1225 is used up, a new wiping tape 1225 is placed on the driven turntable 1224 in time. A second electric eye 1228 is provided below the receiving block, and the alcohol dripping situation is monitored in real time by the second electric eye 1228 to facilitate the control and adjustment of the alcohol dripping amount.

[0047] During cleaning, the seventh driving mechanism drives the cleaning component 1220 to move, so that the wiping cloth 1225 at the cleaning head 1223 contacts the main FPC pad of the workpiece located on the welding platform 300, and the active turntable 1221 rotates, and the wiping belt 1225 on the driven turntable 1224 is gradually wrapped onto the active turntable 1221, thereby driving the wiping belt 1225 to move to wipe the main FPC pad.

[0048] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. An automatic welding machine, characterized in that: It comprises a base and a loading manipulator arranged on the base, a plurality of welding platforms, a plurality of welding devices and a unloading manipulator, wherein the plurality of welding platforms are arranged side by side, the welding platform comprises a fixing frame and a first driving mechanism for driving the fixing frame to move along the Y axis; the welding device is arranged above the welding platform, the welding device comprises a welding head and a second driving mechanism for driving the welding head to approach or move away from the welding platform; the loading manipulator and the unloading manipulator are arranged on the same side of the plurality of welding platforms, and the loading manipulator and the unloading manipulator are used to load and unload the plurality of welding platforms; The multiple welding platforms are divided into groups, each group of welding platforms is divided into a first welding platform and a second welding platform, and each group of welding platforms is equipped with a welding device, and the welding device can weld the workpieces on the first welding platform and the second welding platform in sequence; It also includes a pad cleaning device located above several of the welding platforms, the pad cleaning device includes a seventh driving mechanism, a mounting plate connected to the output execution end of the seventh driving mechanism and a cleaning component arranged on the mounting plate, the cleaning component includes an active turntable, several receiving wheels, a cleaning head, a driven turntable and a wiping belt, the active turntable and the driven turntable are arranged side by side above the cleaning head, the wiping belt is wrapped around the driven turntable and can be recovered to the active turntable through the cleaning head and several of the receiving wheels under the drive of the active turntable, a first electric eye is provided above the driven turntable, the first electric eye is used to monitor the wiping belt on the driven turntable.

2. The automatic welding machine according to claim 1, characterized in that: The welding device also includes a mounting frame connected to the output execution end of the second driving mechanism and a first driving assembly arranged on the mounting frame. The welding head includes a pressure welding head and a drag welding head arranged on the mounting frame. The output execution end of the first driving assembly is connected to the pressure welding head to drive the pressure welding head to move along the Z axis.

3. The automatic welding machine according to claim 1, characterized in that: The welding platform also includes a first workpiece adsorption plate, a pressure plate, a clamping mechanism, a third driving mechanism and a fourth driving mechanism arranged on the fixed frame, the output execution end of the third driving mechanism is connected to the clamping mechanism, and the output execution end of the fourth driving mechanism is connected to the pressure plate.

4. The automatic welding machine according to claim 3, characterized in that: The clamping mechanism comprises a fixing seat, two clamping plates and a driving member, one of the two clamping plates is fixed on the fixing seat, and the other is connected to the output execution end of the driving member.

5. The automatic welding machine according to claim 1, characterized in that: It also includes a CCD camera and a fifth driving mechanism located above the welding platform. The output execution end of the fifth driving mechanism is connected to the CCD camera to drive the CCD camera to move along the X-axis.

6. The automatic welding machine according to claim 5, characterized in that: It also includes a flux coating mechanism connected to the output execution end of the fifth driving mechanism, the flux coating mechanism is arranged side by side with the CCD camera, and the flux coating mechanism includes a coating head and a second driving component for driving the coating head to move along the Z axis.

7. The automatic welding machine according to claim 1, characterized in that: It also includes a positioning device located on one side of the loading robot for adjusting the position of the workpiece. The positioning device includes a sixth driving mechanism, a moving seat connected to the output execution end of the sixth driving mechanism, and a positioning component arranged on the moving seat.

8. The automatic welding machine according to claim 7, characterized in that: The positioning assembly includes a second workpiece adsorption plate, a baffle, a first positioning portion arranged opposite to the baffle, and two second positioning portions arranged opposite to each other. The baffle, the first positioning portion and the two second positioning portions surround the side of the second workpiece adsorption plate. The first positioning portion can move toward or away from the baffle, and the two second positioning portions can move toward or away from each other.

9. The automatic welding machine according to claim 8, characterized in that: It also includes a conveying device and a material-retrieving robot arranged above the conveying device. The alignment device is located at the end of the conveying device. The material-retrieving robot is used to transfer the workpiece on the conveying device to the second workpiece adsorption plate.

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