Full-automatic capacitor cathode upper cover welding machine

Abstract

The invention relates to the technical field of electronic component welding, in particular to a full-automatic capacitor negative electrode upper cover welding machine. Comprising a rack, a capacitor incoming material conveying line, a negative electrode upper cover incoming material conveying line, a carrying manipulator assembly, a high-frequency upper cover pressing assembly, a module jig conveying assembly, a robot assembly, a laser welding assembly, a camera detection assembly and a finished product discharging conveying line. The laser welding assembly is used for welding a capacitor cathode upper cover, the camera detection assembly is used for detecting defective products, the high-frequency upper cover pressing assembly is used for heating and pressing the cathode upper cover and a capacitor body, the module jig conveying assembly is used for transferring the capacitor body, and the carrying manipulator assembly is used for carrying the capacitor body and the capacitor cathode upper cover to the module jig conveying assembly. With the adoption of the assembly, full automation of the pressing and welding process of the negative electrode upper cover and the capacitor body is realized, manpower is reduced, the efficiency is improved, and the yield is controllable.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic component welding, and in particular to a full-automatic capacitor negative electrode cover welding machine. Background Art

[0002] During the production process of capacitors, it is necessary to press the negative electrode cover of the capacitor with the capacitor body, and then weld the pressed negative electrode cover and the capacitor body.

[0003] Currently, the two production steps of pressing the negative electrode cover of a capacitor onto the capacitor body and then welding the pressed negative electrode cover and capacitor body are completed manually. Specifically, a person takes out a negative electrode cover and a capacitor body from the incoming material frame, assembles them, and places them into a high-frequency pressing cover assembly. The high-frequency pressing cover assembly instantly heats the negative electrode cover to soften the negative electrode cover. The negative electrode cover and the capacitor body are then pressed together to create an interference fit. After cooling, the combination of the negative electrode cover and the capacitor body is removed and placed into the designated position of the laser welding assembly for laser welding. The entire process requires manual removal, handling, waiting, clamping, and unclamping. This increases labor and time costs and makes it difficult to control the yield rate.

[0004] Therefore, there is an urgent need for a fully automatic capacitor negative electrode cover welding machine that saves labor costs and time costs while controlling the yield rate at an excellent level. Summary of the Invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a fully automatic capacitor negative electrode cover welding machine to solve the problems of high labor and time costs and uncontrollable yield rate during the pressing and welding process of the capacitor's negative electrode cover and the capacitor body.

[0006] The technical solutions adopted by the present invention to solve the above technical problems are as follows: According to one aspect of the present invention, a fully automatic capacitor negative electrode cover welding machine is provided, comprising a frame structure frame, a capacitor material conveying line, a negative electrode cover material conveying line, a handling robot assembly, a high-frequency pressing cover assembly, a module fixture conveying assembly, a robot assembly, a laser welding assembly, a camera detection assembly and a finished product unloading conveying line, the handling robot assembly includes a capacitor handling robot assembly and a negative electrode cover robot assembly, and the capacitor handling robot assembly and the negative electrode cover robot assembly are detachably fixed to the frame along a first direction, the handling robot assembly and the high-frequency pressing cover assembly are detachably fixed to the frame, and the handling robot assembly and the high-frequency pressing cover assembly are detachably fixed to the frame. The pressing cover assembly is detachably fixed to the frame at intervals along the first direction, the module jig conveying assembly is detachably fixed to the frame and passes through the handling robot assembly and the high-frequency pressing cover assembly in sequence along the first direction, the module jig conveying assembly extends out of the high-frequency pressing cover assembly and forms a transfer portion, one end of the capacitor incoming material conveying line and the negative electrode upper cover incoming material conveying line respectively extend into the frame, the capacitor handling robot assembly includes a first slide rail and a first floating mechanism that slide in the second direction and is used to transport the detected capacitor body to the module jig conveying The negative electrode cover transport robot assembly includes a second slide rail and a second floating mechanism that slide in the second direction and is used to transport the negative electrode cover of the capacitor to the negative electrode of the capacitor body. The high-frequency pressing cover assembly includes a high-frequency tube heating assembly and a cover pressing assembly and is used to heat the negative electrode cover of the capacitor and press the negative electrode cover of the capacitor and the capacitor body. The module fixture conveying assembly includes at least one set of third slide rails that slide along the first direction and is used to transport the capacitor body to the high-frequency pressing cover assembly for pressing and then transfer the pressed capacitor body to the transfer part. The robot assembly and the camera detection assembly are correspondingly arranged in the second direction and the robot assembly and the camera detection assembly are arranged between the transfer part and the finished product unloading conveyor line. The laser welding assembly and the finished product unloading conveyor line are correspondingly arranged in the second direction. The robot assembly is used to place the pressed capacitor body on the laser welding assembly. The laser welding assembly is used to weld the negative electrode cover of the capacitor. The camera detection assembly is used to detect good and defective products. The first direction is the transfer direction of the capacitor body, and the first direction and the second direction are perpendicular to each other.

[0007] Preferably, the capacitor handling robot assembly also includes a first "]" type bracket, a first photoelectric sensor, a first clamping cylinder, a first extension cylinder and a first clamping claw. The first slide rail is detachably fixed on the crossbeam of the first "]" type bracket, and the first extension cylinder is detachably slidably connected to the first slide rail. The two ends of the first clamping claw cylinder are respectively detachably fixedly connected to the first extension cylinder and the first clamping claw. The first photoelectric sensor is arranged on the first "]" type bracket. The first clamping claw is used to move along the first slide rail when the photoelectric sensor detects the capacitor body, grab the capacitor body and place it on the module jig conveying assembly.

[0008] Preferably, the negative electrode cover handling robot assembly also includes a second "]" type bracket, a second photoelectric sensor, a second clamping cylinder, a second extension cylinder and a second clamping claw. The second slide rail is detachably fixed on the second "]" type bracket. The second extension cylinder is detachably slidably connected to the second slide rail. The two ends of the second clamping claw cylinder are respectively detachably fixedly connected to the second extension cylinder and the second clamping claw. The second photoelectric sensor is arranged on the second "]" type bracket. The second clamping claw is used to move along the second slide rail when the second photoelectric sensor detects the negative electrode cover of the capacitor, grab the negative electrode cover of the capacitor and place it on the negative pole of the capacitor body.

[0009] Preferably, the capacitor handling robot assembly, the negative pole top cover robot assembly and the high frequency pressure top cover assembly are detachably fixed on the frame at intervals in sequence along the first direction; or the negative pole top cover robot assembly, the capacitor handling robot assembly and the high frequency pressure top cover assembly are detachably fixed on the frame at intervals in sequence along the first direction.

[0010] Preferably, the module fixture conveying assembly includes at least one set of third slide rails and clamping jaw assemblies, and the clamping jaw assembly includes a third clamping jaw cylinder, a third extension cylinder and a third clamping jaw. The third extension cylinder is detachably fixed on the third slide rail, and the two ends of the third clamping jaw cylinder are detachably connected to the third extension cylinder and the third clamping jaw.

[0011] Preferably, the third slide rail includes a fourth slide rail and a fifth slide rail extending along the first direction and arranged in parallel and spaced apart, and the clamping jaw assembly includes a first clamping jaw assembly and a second clamping jaw assembly, the first clamping jaw assembly is slidably connected to the fourth slide rail, and the second clamping jaw assembly is slidably connected to the fifth slide rail.

[0012] Preferably, the fully automatic capacitor negative electrode cover welding machine also includes a defective product box or a defective product diversion component, the defective product box is detachably fixed on one side of the robot component and is used to collect defective products transferred by the robot component, the defective product diversion component includes a counter, a diversion drive component and a diversion channel, the counter is respectively connected to the camera detection component and the diversion drive component, and the diversion drive component drives the defective products to be transferred to the diversion channel according to the count of the counter.

[0013] Preferably, the high-frequency pressing upper cover assembly includes a high-frequency tube heating assembly and an upper cover pressing assembly, and the high-frequency tube heating assembly and the upper cover pressing assembly are spaced apart along the first direction. The high-frequency tube heating assembly includes a third "]" type bracket, a high-frequency tube, a fixed pressure plate, a fixed base, a high-frequency tube cylinder and a clamping block. The high-frequency tube is fixed to the fixed base through the fixed pressure plate, and the high-frequency tube heating cylinder drives the clamping block to clamp the capacitor body. The upper cover pressing assembly includes a fourth "]" type bracket, a fixed plate, a connecting plate, an upper cover pressing cylinder and a pressing block. The pressing block is fixed to the upper cover pressing cylinder through the connecting plate and the fixed plate, and the upper cover pressing cylinder is used to drive the pressing block to press downward.

[0014] Preferably, the robot assembly includes a robot body, a robot fixing seat and a robot gripper assembly, the robot body is detachably fixed on the robot fixing seat, the robot gripper assembly includes a connecting plate, a reinforcing rib, a cylinder, a floating mechanism and a gripper, the floating mechanism is respectively connected to the connecting plate and the robot cylinder, the reinforcing rib is arranged on the connecting plate, and the gripper is connected to the robot cylinder.

[0015] Preferably, the camera detection assembly includes a guide shaft fixing clamp, a guide shaft support, a light source and a camera assembly; the laser welding assembly includes a module, a laser head, a handwheel, a pull rod and a guide rail; the guide shaft support is detachably connected to the guide shaft fixing clamp; the light source is detachably connected to the guide shaft fixing clamp; the module is connected to the guide rail; and the laser head is connected to the guide rail through the handwheel and the pull rod.

[0016] Compared with the existing technology, the fully automatic capacitor negative electrode cover welding machine provided by the present invention realizes the full automation of the pressing and welding process of the capacitor negative electrode cover and the capacitor body by setting a capacitor incoming material conveyor line, a negative electrode cover incoming material conveyor line, a handling robot assembly, a high-frequency pressing cover assembly, a module fixture conveying assembly, a robot assembly, a laser welding assembly, a camera detection assembly and a finished product unloading conveyor line, thereby reducing manpower, improving efficiency and controlling the yield rate at a higher level. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a structural schematic diagram of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention after removing the frame.

[0018] Figure 2 This is a schematic diagram of the frame structure of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of a capacitor material conveying line of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0020] Figure 4 This is a structural schematic diagram of a capacitor handling robot assembly of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0021] Figure 5 This is a structural schematic diagram of a camera detection component of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0022] Figure 6 This is a structural schematic diagram of the cooperation between the high-frequency pressing cover assembly and the module jig conveying assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0023] Figure 7 This is a schematic structural diagram of a high-frequency tube heating assembly of a high-frequency pressing cover assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0024] Figure 8 This is a schematic structural diagram of the upper cover pressing assembly of the high-frequency upper cover assembly in a fully automatic capacitor negative electrode upper cover welding machine provided in Example 1 of the present invention.

[0025] Figure 9 This is a schematic diagram of the structure of the module jig conveying assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0026] Figure 10 This is a structural schematic diagram of a robot gripper assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In this embodiment, for ease of description, the direction of motion of the capacitor body is defined as the first direction, i.e., the main direction of movement of the capacitor body during the closing and welding process. The direction perpendicular to the first direction in the horizontal plane is defined as the second direction; the direction perpendicular to the horizontal plane is defined as the third direction. Furthermore, the first direction is defined as the left-right direction, the second direction is defined as the front-back direction, and the third direction is defined as the up-down direction.

[0029] like Figure 1 and Figure 9 As shown, Figure 1 This is a structural schematic diagram of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention after removing the frame. Figure 2 This is a schematic diagram of the frame structure of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. Figure 3 This is a schematic diagram of the structure of a capacitor material conveying line of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. Figure 4 This is a structural schematic diagram of a capacitor handling robot assembly of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. Figure 5 This is a structural schematic diagram of a camera detection component of a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. Figure 6 This is a structural schematic diagram of the cooperation between the high-frequency pressing cover assembly and the module jig conveying assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. Figure 7 This is a schematic structural diagram of a high-frequency tube heating assembly of a high-frequency pressing cover assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. Figure 8 This is a schematic structural diagram of the upper cover pressing assembly of the high-frequency upper cover assembly in a fully automatic capacitor negative electrode upper cover welding machine provided in Example 1 of the present invention. Figure 9 This is a schematic diagram of the structure of the module jig conveying assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention.

[0030] The fully automatic capacitor negative electrode cover welding machine includes a frame structure frame 1, a capacitor material conveying line 200, a negative electrode cover material conveying line 100, a handling robot assembly, a high-frequency pressing cover assembly, a module fixture conveying assembly 700, a robot assembly 800, a laser welding assembly 1000, a camera detection assembly 900 and a finished product unloading conveying line 1100, the handling robot assembly includes a capacitor handling robot assembly 300 and a negative electrode cover robot assembly 400, and the capacitor handling robot assembly 300 and the negative electrode cover robot assembly 400 are detachably fixed on the frame 1 along a first direction. The components and the high-frequency pressure cover assembly are detachably fixed on the rack 1 at intervals in the first direction. The module fixture conveying assembly 700 is detachably fixed on the rack 1 and passes through the handling robot assembly and the high-frequency pressure cover assembly in sequence along the first direction. The module fixture conveying assembly 700 extends out of the high-frequency pressure cover assembly and forms a transfer portion. One end of the capacitor incoming material conveying line 200 and the negative electrode upper cover incoming material conveying line 100 respectively extends into the rack 1. The capacitor handling robot assembly 200 includes a first slide rail 320 and a first floating mechanism 340 that slide in the second direction and is used to transport the detected capacitor body 250 to the module fixture. On the conveying assembly 700, the negative electrode cover handling robot assembly includes a second slide rail and a second floating mechanism that slide in the second direction and is used to transport the negative electrode cover of the capacitor to the negative electrode of the capacitor body 250. The high-frequency pressing cover assembly includes a high-frequency tube heating assembly 600 and a cover pressing assembly 500 and is used to heat the negative electrode cover of the capacitor and press the negative electrode cover of the capacitor and the capacitor body 250. The module fixture conveying assembly 700 includes at least one set of third slide rails that slide along the first direction and is used to transport the capacitor body 250 to the high-frequency pressing cover assembly for pressing and then transfer the pressed capacitor body 250 to the transfer part. The robot The component 800 and the camera detection component 900 are correspondingly arranged in the second direction and the robot component 800 and the camera detection component 900 are arranged between the transfer part and the finished product unloading conveyor line 1100. The laser welding component 1000 and the finished product unloading conveyor line 1100 are correspondingly arranged in the second direction. The robot component 800 is used to place the pressed capacitor body 250 on the laser welding component 1000. The laser welding component 1000 is used to weld the negative electrode cover of the capacitor. The camera detection component 900 is used to detect good and defective products. The first direction is the transfer direction of the capacitor body, and the first direction is perpendicular to the second direction.

[0031] In this embodiment, the structures of the capacitor incoming material conveying line 200, the negative electrode upper cover incoming material conveying line 100 and the finished product unloading conveying line 1100 are basically the same. Figure 3As shown, they are all composed of a base bracket 220, a motor 230, a guide rail 210 and a pulley structure 240. The base bracket 220 is connected to the guide rail 210 to fix the guide rail 210 and make the guide rail 210 extend along the first direction. The pulley structure 240 is arranged in the guide rail 210 and moves the capacitor body 250 along the first direction by driving the pulley. The motor 230 is connected to the pulley structure 240. In this embodiment, the negative electrode cover incoming material conveyor line 100 and the capacitor incoming material conveyor line 200 are arranged at a 90-degree angle, that is, the negative electrode cover incoming material conveyor line 100 is arranged along the second direction. The finished product unloading conveyor line 1100 is arranged in the same direction as the capacitor incoming material conveyor line 200, and both are arranged along the first direction.

[0032] In some embodiments, the capacitor incoming material conveyor line 200, the negative electrode upper cover incoming material conveyor line 100, and the finished product unloading conveyor line 1100 may also be arranged at an angle, which may be an acute angle or an obtuse angle.

[0033] In some embodiments, the capacitor material conveying line 200 and the negative electrode cover material conveying line 100 can be swapped.

[0034] In this embodiment, a platform plate is provided within the frame 1, and the control system 2 is mounted on the frame 1. The capacitor handling robot assembly 300, the negative electrode cover robot assembly 400, the cover pressing assembly 500, and the high-frequency tube heating assembly 600 are sequentially spaced apart on the platform plate along a first direction. Specifically, the capacitor handling robot assembly 300 includes a first slide rail 320, a first floating mechanism 350, a first "]"-shaped bracket 310, a first photoelectric sensor, a first clamping cylinder 340, a first extension cylinder 330, and a first clamping claw 360. The first "]"-shaped bracket 310 has two legs and a crossbeam 311 extending along a second direction and connected to the two legs at both ends. The first slide rail 320 is set on the beam 311, and the first clamping cylinder 340 is connected to the first clamping claw 360 to control its opening and clamping action. The first floating mechanism 350 is set directly below or above the first clamping claw cylinder 340. The first floating mechanism 350 facilitates the first clamping claw 360 to accurately clamp the capacitor body 250 and place it at the specified position of the module fixture conveying assembly 700. The first extension cylinder 330 is connected to the first slide rail 320 through a fixed plate, so that the first extension cylinder 330 can drive the first clamping claw cylinder 340, the first floating mechanism 350 and the first clamping claw 360 to slide in the second direction on the first slide rail 320 while being able to extend and retract in the third direction.

[0035] It is understood that the structure of the negative electrode cover robot assembly 400 is basically the same as that of the capacitor handling robot assembly 300. The difference is that the second floating mechanism of the negative electrode cover robot assembly 400 is used to accurately place the negative electrode cover on the negative electrode of the capacitor body 250. In some embodiments, the positions of the negative electrode cover robot assembly 400 and the capacitor handling robot assembly 300 can be swapped. That is, the capacitor handling robot assembly 300, the negative electrode cover robot assembly 400 and the high-frequency pressure cover assembly are detachably fixed to the frame 1 at intervals in sequence along the first direction; or the negative electrode cover robot assembly 400, the capacitor handling robot assembly 300 and the high-frequency pressure cover assembly are detachably fixed to the frame 1 at intervals in sequence along the first direction.

[0036] In this embodiment, the module jig conveying assembly 700 includes a fourth slide rail 751, a fifth slide rail 752, and a clamping jaw assembly. The clamping jaw assembly includes a third clamping jaw cylinder 720, a third extension cylinder 740, and a third clamping jaw 710. The third extension cylinder 740 is detachably fixed to the fourth slide rail 751 and the fifth slide rail 752. The ends of the third clamping jaw cylinder 710 are detachably connected to the third extension cylinder 740 and the third clamping jaw 710. In this embodiment, the third clamping jaw cylinder 720 also has a cylinder base 730. The third extension cylinder 740 is connected to the fourth slide rail 751 and the fifth slide rail 752 via the base, allowing the clamping jaw assembly to slide along the fourth slide rail 751 and the fifth slide rail 752 in a first direction. It is understood that the slide rails on the module jig conveying assembly 700 can be configured as one, two, or multiple parallel slide rails.

[0037] In this embodiment, the high-frequency tube heating assembly includes a third "]"-shaped bracket 610, a high-frequency tube 630, a fixed pressure plate 650, a fixed base 660, a high-frequency tube cylinder 620, and a clamping block 640. The high-frequency tube 630 is fixed to the fixed base 660 via the fixed pressure plate 650. The high-frequency tube cylinder 620 drives the clamping block 640 to clamp the capacitor body 250. The upper cover clamping assembly 500 includes a fourth "]"-shaped bracket 550, a fixed plate 510, a connecting plate, an upper cover clamping cylinder 520, and a clamping block 540. The clamping block 540 is fixed to the upper cover clamping cylinder 520 via the connecting plate and the fixed plate 510. The upper cover clamping cylinder 520 is used to drive the clamping block 540 downward. The upper cover clamping cylinder 520 is fixed to the beam extending along the second direction of the fourth "]"-shaped bracket 550 via the connecting plate.

[0038] In this embodiment, the first "]"-shaped bracket 310, the second "]"-shaped bracket, the third "]"-shaped bracket 610 and the fourth "]"-shaped bracket 550 enclose an operating space with the platform plate, and a module fixture conveying assembly 700 detachably connected to the platform plate is provided at the bottom of the operating space, so that the negative electrode cover and the capacitor body can be displaced, closed and heated and pressed in the above space.

[0039] Look again Figure 5 The camera detection assembly consists of three corresponding components: a light source assembly, a camera assembly, and a capacitor fixing and rotating assembly. The light source assembly includes a guide shaft fixing clamp 910, a guide shaft support 930, and a light source 920. The light source 920 is fixed to the guide shaft support 930 via the guide shaft fixing clamp 910. The camera assembly includes a camera 950, a camera front-to-back adjustment support plate 943, a camera fixing base 942, a camera height adjustment support plate 941, and a camera base 940. As shown in the figure, the camera 950 is fixed to the camera base 940 using the front-to-back adjustment support plate 943 and the camera height adjustment support plate 941 to adjust its height and front-to-back distance. The capacitor fixing and rotating assembly includes, from top to bottom, a fourth clamping jaw 961, a fourth clamping jaw cylinder 962, a rotating clamping cylinder base 963, and a servo motor 964. The servo motor 964 drives the rotating clamping cylinder base 963, which in turn drives the capacitor to rotate. The second clamping jaw cylinder 962 controls the second clamping jaw 961 to clamp and release the capacitor.

[0040] Look again Figure 10 , Figure 10 This is a schematic diagram of the structure of a robot gripper assembly in a fully automatic capacitor negative electrode cover welding machine provided in Example 1 of the present invention. The robot assembly 800 includes a robot body, a robot mounting base, and a robot gripper assembly. The robot body is detachably mounted on the robot mounting base. The robot gripper assembly includes a connecting plate 840, a reinforcing rib 820, a connecting plate 810, a robot cylinder 850, a third floating mechanism 830, and a fifth gripper 860. The third floating mechanism 830 is connected to the connecting plate 810 and the robot cylinder 850, respectively. The reinforcing rib 820 is provided on the connecting plate 810. The fifth gripper 860 is connected to the robot cylinder 850.

[0041] The laser welding assembly 1000 includes a module, a laser head, a handwheel, a pull rod, and a guide rail. The module is connected to the guide rail, and the laser head is connected to the guide rail via the handwheel and the pull rod. In this embodiment, the module, laser head, handwheel, pull rod, and guide rail are all configured using standard parts.

[0042] The entire workflow of the fully automatic capacitor negative electrode cover welding machine is described as follows: 1. The capacitor material conveyor line 200 receives the capacitor bodies 250 transferred from the front-end production line and transfers them to rack 1. The negative electrode cover material conveyor line 100 receives the negative electrode cover placed on the side of rack 1 and transfers it to rack 1. 2. When the first photoelectric sensor on the capacitor handling robot assembly 300 senses the incoming capacitor body 250, the first gripper 360 on the capacitor handling robot assembly 300 accurately places the capacitor body 250 at the corresponding position on the module jig conveying assembly 700 via the first floating mechanism 340; 3. When the second photoelectric sensor on the negative electrode cover robot assembly 400 senses the incoming negative electrode cover, the second gripper on the negative electrode cover robot assembly 400 accurately places the negative electrode cover on the capacitor body transferred to the module jig conveyor assembly through the second floating mechanism; 4. The module jig conveying assembly 700 transfers the capacitor body 250 covered with the negative electrode cover to the bottom of the cover pressing assembly 500 and uses the third extension cylinder 740 to move the capacitor body 250 covered with the negative electrode cover upward, so that the clamping block 640 clamps the capacitor body 250 and the negative electrode cover is placed on the high-frequency tube 630; 5. The high-frequency tube 630 quickly heats the negative electrode cover, and at the same time, the high-frequency tube cylinder 620 presses the negative electrode cover and the capacitor body 250 together.

[0043] 6. Release the pressed capacitor body 250 and move it downward to the transfer portion; 7. The robot assembly 800 accurately grasps the capacitor body 2250 located at the transfer portion through the third floating mechanism 830 and rotates it 180 degrees before placing it on the fourth gripper 961; 8. The camera 950 uses the light source 920 to illuminate and detect defective products; 9. The rotating clamping cylinder base 963 rotates to drive the capacitor body 250 to rotate, and then cooperates with the laser welding assembly 1000 to laser weld the capacitor body 250 and the pressed negative electrode cover; 10. The good products welded by the robot assembly 800 are placed on the finished product unloading conveyor line 1100, and the defective products are placed in the defective product box 30.

[0044] In some embodiments, the fully automatic capacitor negative electrode cover welding machine also includes a defective product shunt component, which includes a counter, a shunt drive component and a shunt channel. The counter is respectively connected to the camera detection component and the shunt drive component. The shunt drive component drives the defective products to be transferred to the shunt channel according to the count of the counter.

[0045] The present invention provides a fully automatic capacitor negative electrode cover welding machine, which realizes the full automation of the pressing and welding process of the capacitor negative electrode cover and the capacitor body by setting a capacitor incoming material conveyor line 200, a negative electrode cover incoming material conveyor line 100, a handling robot assembly, a high-frequency pressing cover assembly, a module fixture conveying assembly 700, a robot assembly 800, a laser welding assembly 1000, a camera detection assembly 900 and a finished product unloading conveyor line 1100, thereby reducing manpower, improving efficiency and controlling the yield rate at a higher level.

[0046] The above description of the preferred embodiments of the present invention with reference to the accompanying drawings does not limit the scope of the present invention. Those skilled in the art may implement the present invention in various variations without departing from the scope and spirit of the present invention. For example, features of one embodiment may be applied to another embodiment to obtain yet another embodiment. Any modifications, equivalent substitutions, and improvements made within the technical concept of the present invention shall be within the scope of the present invention.

Claims

1. A fully automatic capacitor negative electrode cover welding machine, characterized in that: It includes a frame structure, a capacitor material conveying line, a negative electrode cover material conveying line, a handling robot assembly, a high-frequency pressing cover assembly, a module fixture conveying assembly, a robot assembly, a laser welding assembly, a camera detection assembly and a finished product unloading conveying line, the handling robot assembly includes a capacitor handling robot assembly and a negative electrode cover robot assembly, and the capacitor handling robot assembly and the negative electrode cover robot assembly are detachably fixed on the frame along a first direction, and the handling robot assembly and the high-frequency pressing cover assembly are detachably fixed in sequence along the first direction. On the rack, the module jig conveying assembly is detachably fixed to the rack and passes through the handling robot assembly and the high-frequency pressing cover assembly in sequence along the first direction. The module jig conveying assembly extends out of the high-frequency pressing cover assembly and forms a transfer portion. One end of the capacitor material conveying line and the negative electrode cover material conveying line respectively extend into the rack. The capacitor handling robot assembly includes a first slide rail and a first floating mechanism that slide in the second direction and is used to transport the detected capacitor body to the module jig conveying assembly. The negative electrode cover conveying machine The manipulator assembly includes a second slide rail and a second floating mechanism that slide in the second direction and is used to transport the capacitor negative electrode cover to the negative electrode of the capacitor body. The high-frequency pressing cover assembly includes a high-frequency tube heating assembly and a cover pressing assembly and is used to heat the capacitor negative electrode cover and press the capacitor negative electrode cover and the capacitor body together. The module fixture conveying assembly includes at least one set of third slide rails that slide along the first direction and is used to transport the capacitor body to the high-frequency pressing cover assembly for pressing and then transfer the pressed capacitor body to the transfer part. The robot assembly and the camera detection assembly are correspondingly arranged in the second direction and the robot assembly and the camera detection assembly are arranged between the transfer part and the finished product unloading conveyor line. The laser welding assembly and the finished product unloading conveyor line are correspondingly arranged in the second direction. The robot assembly is used to place the pressed capacitor body on the laser welding assembly. The laser welding assembly is used to weld the capacitor negative electrode cover. The camera detection assembly is used to detect good and defective products. The first direction is the transfer direction of the capacitor body, and the first direction and the second direction are perpendicular to each other.

2. The fully automatic capacitor negative electrode upper cover welding machine according to claim 1, characterized in that: The capacitor handling robot assembly also includes a first "]" type bracket, a first photoelectric sensor, a first clamping cylinder, a first extension cylinder and a first clamping claw. The first slide rail is detachably fixed on the crossbeam of the first "]" type bracket, and the first extension cylinder is detachably slidably connected to the first slide rail. The two ends of the first clamping claw cylinder are respectively detachably fixedly connected to the first extension cylinder and the first clamping claw. The first photoelectric sensor is arranged on the first "]" type bracket. The first clamping claw is used to move along the first slide rail when the photoelectric sensor detects the capacitor body, grab the capacitor body and place it on the module jig conveying assembly.

3. The fully automatic capacitor negative electrode upper cover welding machine according to claim 1, characterized in that: The negative electrode cover handling robot assembly also includes a second "]" type bracket, a second photoelectric sensor, a second clamping cylinder, a second extension cylinder and a second clamping claw. The second slide rail is detachably fixed on the second "]" type bracket. The second extension cylinder is detachably slidably connected to the second slide rail. The two ends of the second clamping claw cylinder are respectively detachably fixedly connected to the second extension cylinder and the second clamping claw. The second photoelectric sensor is arranged on the second "]" type bracket. The second clamping claw is used to move along the second slide rail when the second photoelectric sensor detects the negative electrode cover of the capacitor, grab the negative electrode cover of the capacitor and place it on the negative pole of the capacitor body.

4. The fully automatic capacitor negative electrode upper cover welding machine according to claim 1, characterized in that: The capacitor handling robot assembly, the negative electrode cover robot assembly and the high-frequency pressure cover assembly are detachably fixed on the frame at intervals in sequence along the first direction; or the negative electrode cover robot assembly, the capacitor handling robot assembly and the high-frequency pressure cover assembly are detachably fixed on the frame at intervals in sequence along the first direction.

5. The fully automatic capacitor negative electrode upper cover welding machine according to claim 1, characterized in that: The module fixture conveying assembly includes at least one set of third slide rails and a clamping jaw assembly, and the clamping jaw assembly includes a third clamping jaw cylinder, a third extension cylinder and a third clamping jaw. The third extension cylinder is detachably fixed on the third slide rail, and the two ends of the third clamping jaw cylinder are detachably connected to the third extension cylinder and the third clamping jaw.

6. The fully automatic capacitor negative electrode upper cover welding machine according to claim 5, characterized in that: The third slide rail includes a fourth slide rail and a fifth slide rail extending along the first direction and arranged in parallel and spaced apart. The clamping jaw assembly includes a first clamping jaw assembly and a second clamping jaw assembly. The first clamping jaw assembly is slidably connected to the fourth slide rail, and the second clamping jaw assembly is slidably connected to the fifth slide rail.

7. The fully automatic capacitor negative electrode cover welding machine according to claim 1, characterized in that: The fully automatic capacitor negative electrode cover welding machine also includes a defective product box or a defective product diversion component. The defective product box is detachably fixed on one side of the robot component and is used to collect defective products transferred by the robot component. The defective product diversion component includes a counter, a diversion drive component and a diversion channel. The counter is respectively connected to the camera detection component and the diversion drive component. The diversion drive component drives the defective products to be transferred to the diversion channel according to the count of the counter.

8. The fully automatic capacitor negative electrode cover welding machine according to claim 1, characterized in that: The high-frequency pressing upper cover assembly includes a high-frequency tube heating assembly and an upper cover pressing assembly, and the high-frequency tube heating assembly and the upper cover pressing assembly are arranged at intervals along the first direction. The high-frequency tube heating assembly includes a third "]"-shaped bracket, a high-frequency tube, a fixed pressure plate, a fixed base, a high-frequency tube cylinder and a clamping block. The high-frequency tube is fixed to the fixed base through the fixed pressure plate. The high-frequency tube heating cylinder drives the clamping block to clamp the capacitor body. The upper cover pressing assembly includes a fourth "]"-shaped bracket, a fixed plate, a connecting plate, an upper cover pressing cylinder and a pressing block. The pressing block is fixed to the upper cover pressing cylinder through the connecting plate and the fixed plate. The upper cover pressing cylinder is used to drive the pressing block to press downward.

9. The fully automatic capacitor negative electrode cover welding machine according to claim 1, characterized in that: The robot assembly includes a robot body, a robot fixing seat and a robot gripper assembly. The robot body is detachably fixed on the robot fixing seat. The robot gripper assembly includes a connecting plate, a reinforcing rib, a cylinder, a floating mechanism and a gripper. The floating mechanism is respectively connected to the connecting plate and the robot cylinder. The reinforcing rib is arranged on the connecting plate, and the gripper is connected to the robot cylinder.

10. The fully automatic capacitor negative electrode cover welding machine according to claim 1, characterized in that: The camera detection assembly includes a guide shaft fixing clamp, a guide shaft support, a light source and a camera assembly; the laser welding assembly includes a module, a laser head, a handwheel, a pull rod and a guide rail; the guide shaft support is detachably connected to the guide shaft fixing clamp; the light source is detachably connected to the guide shaft fixing clamp; the module is connected to the guide rail; and the laser head is connected to the guide rail via the handwheel and the pull rod.

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