Circuit board and tool automatic assembling and disassembling device and power module production system and method

Abstract

The invention provides a circuit board and tool automatic assembling and disassembling device and a power module production system and method, and belongs to the technical field of power module production. The tool comprises a bottom plate and a pressing plate, a placing position is arranged on the bottom plate, the automatic assembling and disassembling device comprises a first conveying line and a second conveying line, and the first conveying line is used for conveying circuit boards. The second conveying line is used for conveying tools; a covering structure and a splitting structure are arranged on one side of the second conveying line, and the covering structure is used for covering the bottom plate with the pressing plate. And a transfer structure is arranged between the first conveying line and the second conveying line and is used for transferring the circuit board to the placement position of the tool. According to the device, the circuit board can be automatically assembled and disassembled on the tool, so that manpower can be saved when the circuit board and the positioning tool are matched for production, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power module production, and in particular to a circuit board and tooling automatic assembly and disassembly device, a power module production system and method. Background Art

[0002] The controller of the outdoor unit of a household variable frequency air conditioner includes a power module, which usually includes components such as IPM, IGBT, diode, rectifier bridge, etc. These power devices have dense pins. Before the insertion operation, the pins need to be bent and sheared at 90 degrees to meet the requirements of the subsequent production process. After the pin processing is completed, the module needs to be accurately positioned on the standard positioning tool before the insertion operation can be carried out. After the insertion is completed, the welding tool with the PCB motherboard will enter the welding equipment together for selective welding. After the welding is completed, the tooling is recycled for repeated use. In this production process, the positioning tool plays a vital role. It not only can realize the positioning and height determination of the components, but also provides convenient conditions for the automatic insertion and positioning of the components in the subsequent process.

[0003] However, the current assembly and separation of the PCB motherboard and the positioning tooling mainly rely on manual operation. This manual operation method has many disadvantages. Specifically, the positioning tooling itself is heavy, and workers need to exert a lot of physical strength when assembling the PCB motherboard and the positioning tooling and separating them after welding, resulting in extremely high labor intensity. Moreover, the manual operation process has a long cycle time, which seriously affects the overall production efficiency.

[0004] Therefore, it is necessary to improve the existing separation method of the PCB mainboard and the positioning tooling to overcome the defects of the prior art. Summary of the invention

[0005] In order to overcome the problems existing in the related art, one of the purposes of the present invention is to provide an automatic assembly and disassembly device for circuit boards and tooling, which can realize the automatic assembly and disassembly of circuit boards on tooling, thereby reducing manpower during the production of circuit boards and positioning tooling and improving production efficiency.

[0006] A circuit board and tooling automatic assembly and disassembly device, the tooling includes a bottom plate and a pressure plate, the bottom plate is provided with a placement position, and the automatic assembly and disassembly device includes:

[0007] A first conveying line, wherein the first conveying line is used to convey the circuit board;

[0008] A second conveying line, the second conveying line is used to convey the tooling; a covering structure and a splitting structure are provided on one side of the second conveying line, the covering structure is used to cover the pressing plate on the bottom plate;

[0009] A transfer structure is provided between the first conveying line and the second conveying line, and the transfer structure is used to transfer the circuit board to the placement position of the tooling.

[0010] In one embodiment, the transfer structure may include a robot and a vacuum suction cup. The method of using the device is as follows: the circuit board is conveyed by the first conveyor line, and the tooling is conveyed by the second conveyor line. When the circuit board and the tooling arrive at the set positions respectively, the robot vision system of the transfer structure identifies the position and posture of the circuit board, and the robot arm drives the vacuum suction cup to grab the circuit board, transfer it to the tooling placement position and release it. The covering structure is started, and the motor drives the pressure plate grasping mechanism to grab the pressure plate and cover it on the bottom plate to complete the assembly of the circuit board and the tooling. After the circuit board is processed, the tooling is conveyed to the split position again, and the covering structure reverses to separate the pressure plate from the bottom plate. The robot of the transfer structure grabs the circuit board on the bottom plate to complete the separation of the circuit board and the tooling. The device can reduce labor costs and improve production efficiency, and the automatic assembly and disassembly design ensures the consistency and accuracy of each assembly and disassembly, greatly reducing product quality problems caused by improper assembly and disassembly, reducing the production of defective products, and improving the economic benefits of the enterprise.

[0011] In a preferred technical solution of the present invention, the pressing plate is hinged to the bottom plate, and a clamping hole is provided on one side of the pressing plate;

[0012] The covering structure includes a first driving structure and a rotating driving device. The first driving structure is fixed on one side of the second conveying line. A mounting frame is provided at the output end of the first driving structure. The rotating driving device is fixed on the mounting frame. A rotating shaft is provided on the rotating driving device, and the rotating shaft is adapted to the clamping hole.

[0013] In this embodiment, when the tooling arrives at the designated covering position along the second conveyor line, the sensor installed next to the second conveyor line detects the tooling arrival signal and transmits the signal to the control system. After receiving the signal, the control system immediately starts the first drive structure, and the output end of the first drive structure extends to push the mounting frame and the rotating drive device (servo motor) thereon toward the pressure plate of the tooling. When the rotating shaft of the servo motor is aligned and clamped into the clamping hole on the pressure plate, the electric push rod stops moving. At this time, the servo motor receives the rotation command issued by the control system, starts to rotate, and drives the pressure plate to rotate around the hinge point with the base plate until the pressure plate is completely covered on the base plate, completing the assembly action of the circuit board and the tooling.

[0014] When the circuit board processing is completed and the tooling is transported to the separation position of the circuit board and the tooling again, the servo motor rotates in the opposite direction to pull the shaft out of the clamping hole. Then, the electric push rod shrinks, driving the mounting frame and the rotating drive device back to the initial position, waiting for the next working cycle.

[0015] The entire closing and unclosing process is completed by sensors, control systems, electric push rods, servo motors and other automated components without manual intervention. This greatly improves production efficiency and reduces labor costs.

[0016] In a preferred technical solution of the present invention, a first lifting platform is further provided on one side of the second conveying line, and the first driving structure is fixed on the first lifting platform.

[0017] During the tooling transportation process, the height of the tooling may vary due to different batches or specifications. In order to cope with this situation, a height sensor is installed next to the second conveyor line before the tooling reaches the covering position. When the tooling approaches the second conveyor line, the height sensor detects the height of the tooling in real time and transmits the height data to the control system. The control system calculates the distance that the first lifting platform needs to rise or fall according to the preset program, and sends instructions to the motor of the first lifting platform. The motor drives the screw to operate, so that the first lifting platform drives the first drive structure and the rotating drive device thereon to adjust to a height that matches the clamping hole of the tooling pressure plate.

[0018] When the tooling reaches the designated closing position, the electric push rod of the first driving structure starts, pushing the mounting frame and the rotary drive device thereon toward the pressure plate of the tooling. The rotating shaft of the rotary drive device is accurately inserted into the clamping hole of the pressure plate, and then the rotary drive device is activated to drive the pressure plate to close on the bottom plate. After the closing is completed, when the tooling is processed and returns to the separation position, the entire process is reversed to separate the pressure plate from the bottom plate.

[0019] In a preferred technical solution of the present invention, the transfer structure includes a transfer guide rail, a transfer bracket and a transfer clamp, the transfer guide rail spans between the first conveyor line and the second conveyor line, the transfer bracket is movably disposed on the transfer guide rail, and the transfer clamp is fixed on the transfer bracket.

[0020] In actual use, when the circuit board arrives at the designated transfer position along the first conveyor line, the sensor installed next to the first conveyor line detects the circuit board signal and transmits it to the PLC control system. After receiving the signal, the control system immediately starts the drive motor of the transfer bracket, so that the transfer bracket quickly moves to the top of the corresponding position of the first conveyor line. Subsequently, the pneumatic jaws of the transfer clamp open under the drive of compressed air, descend to the appropriate position above the circuit board, and then close to grab the circuit board. Next, the drive motor runs in reverse, driving the transfer bracket to move above the placement position of the tooling of the second conveyor line. The transfer clamp moves again, releases the jaws, and accurately places the circuit board on the placement position of the tooling, completing a circuit board transfer operation.

[0021] In a preferred technical solution of the present invention, a positioning pin is provided at the edge of the placement position, and a limiting block is provided on the pressure plate. When the pressure plate is pressed onto the bottom plate, the limiting block abuts against the circuit board in the placement position.

[0022] In actual use, the circuit board is provided with positioning holes that match the positioning pins. When the circuit board is placed from the transfer structure to the placement position of the tooling, the pre-designed positioning holes on the circuit board precisely match the positioning pins on the edge of the placement position to ensure that the position of the circuit board in the placement position is accurate. Subsequently, the covering structure works to press the pressure plate onto the bottom plate. As the pressure plate gradually approaches the bottom plate, the limit block gradually abuts against the circuit board in the placement position, further limiting the circuit board and preventing the circuit board from shifting during subsequent processing.

[0023] A second object of the present invention is to provide a power module production system, including welding equipment and the circuit board and tooling automatic assembly and disassembly device as described above.

[0024] In a preferred technical solution of the present invention, the welding equipment includes an inlet end and an outlet end, and the inlet end and the outlet end are both provided with the circuit board and tooling automatic assembly and disassembly device;

[0025] A reflux channel is provided between the inlet end and the outlet end, and the reflux channel is used to send the tooling at the outlet end back to the inlet end.

[0026] At the entrance of the welding equipment, the automatic assembly and disassembly device of the circuit board and the tooling is responsible for assembling the circuit board onto the tooling. The specific process is as follows: the first conveyor line conveys the circuit board to the designated position, the transfer clamp in the transfer structure grabs the circuit board, and transfers it to the placement position of the tooling on the second conveyor line. The positioning pins on the edge of the placement position cooperate with the positioning holes of the circuit board to ensure the precise positioning of the circuit board. Subsequently, the covering structure is started, the limit block on the pressure plate abuts against the circuit board, and the pressure plate is covered on the bottom plate to complete the assembly of the circuit board and the tooling. The assembled tooling enters the entrance of the welding equipment through the second conveyor line, and the welding process begins. This production system realizes the rapid assembly and disassembly of the circuit board and the tooling through the automatic assembly and disassembly devices at the entrance and exit of the welding equipment, reducing the manual operation time.

[0027] During the entire production process, most of the assembly, disassembly and transportation work is completed by automatic devices, which reduces manual participation, labor intensity and labor costs.

[0028] In a preferred technical solution of the present invention, a second lifting platform is respectively provided at the inlet end and the outlet end, and the second lifting platform is provided in the second conveying line;

[0029] The second lifting platform includes a second driving structure, a bearing platform and a weight sensor. The second driving structure is arranged in the second conveying line. The bearing platform is fixed at the output end of the second driving structure. The weight sensor is arranged at the bottom of the bearing platform.

[0030] During the production process, at the entrance of the welding equipment, when the tooling and circuit boards are transported to this location through the second conveyor line, the weight sensor will monitor the weight of the carrier in real time. The second drive structure will adjust the carrier to a suitable height according to the needs of the assembly or disassembly operation of the circuit board and the tooling. For example, when the circuit board needs to be assembled to the tooling, the second drive structure will raise the carrier to a height that matches the transfer structure, so that the transfer clamp can accurately place the circuit board on the placement position of the tooling.

[0031] At the exit of the welding equipment, when the welded tooling and circuit board are transported to the second lifting platform, the weight sensor detects that the tooling is in place, and the second driving structure raises or lowers the platform to place the tooling and circuit board in a suitable position for subsequent splitting and transfer operations. For example, during the splitting operation, the second driving structure raises the platform to a height that matches the splitting structure, so that the splitting structure can separate the pressure plate from the bottom plate.

[0032] In a preferred technical solution of the present invention, the outlet of the reflux channel is connected to the second lifting platform, and a photoelectric sensor is provided at the outlet of the reflux channel.

[0033] The photoelectric sensor cooperates with the second driving structure. When a tooling arrives at the outlet of the reflux channel, the second driving structure drives the bearing platform to rise so as to seamlessly receive the tooling.

[0034] A third object of the present invention is to provide a power module production method, which is implemented based on the power module production system as described above;

[0035] The method comprises:

[0036] Insert components on the circuit board;

[0037] Place the circuit board with components inserted on the placement position of the tooling;

[0038] The pressing plate is covered on the bottom plate by using the covering structure, and the tooling is sent to the welding equipment for welding;

[0039] After welding is completed, the pressing plate is opened using the covering structure, and the circuit board is taken out from the base plate through the transfer structure.

[0040] The method can effectively improve the assembly and disassembly time between the circuit board and the tooling, thereby reducing production costs.

[0041] The beneficial effects of the present invention are:

[0042] The present invention provides an automatic assembly and disassembly device for a circuit board and a tooling, wherein the tooling comprises a base plate and a pressure plate, a placement position is arranged on the base plate, and the automatic assembly and disassembly device comprises a first conveyor line and a second conveyor line, wherein the first conveyor line is used to convey the circuit board. The second conveyor line is used to convey the tooling; a covering structure and a splitting structure are arranged on one side of the second conveyor line, and the covering structure is used to cover the pressure plate on the base plate. A transfer structure is arranged between the first conveyor line and the second conveyor line, and the transfer structure is used to transfer the circuit board to the placement position of the tooling. During use, the device uses the first conveyor line to convey the circuit board, and uses the second conveyor line to convey the tooling. When the circuit board and the tooling are conveyed to the set position, the transfer structure clamps the circuit board and transfers the circuit board to the placement position of the tooling; and then the covering structure is activated to cover the pressure plate on the base plate, thereby realizing the automatic assembly of the circuit board and the tooling. When the processing of the circuit board is completed, the covering structure is activated here to separate the pressure plate from the base plate, and the transfer structure clamps the circuit board on the base plate, thereby realizing the separation of the circuit board and the tooling. The device can realize the automatic assembly and disassembly of circuit boards and tooling. The whole process does not require human intervention, which can greatly reduce labor costs and improve production efficiency. In addition, the design of automatic assembly and disassembly can ensure the consistency and accuracy of each assembly and disassembly of circuit boards and tooling, reduce product quality problems caused by improper assembly and disassembly, and improve product yield.

[0043] The present application also provides a power module production system and production method including the above-mentioned circuit board and tooling automatic assembly and disassembly device. The production system utilizes the above-mentioned tooling automatic assembly and disassembly device to realize automatic assembly and disassembly of circuit boards and tooling, thereby reducing labor costs, thereby increasing the production cost of power modules and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a three-dimensional diagram of a circuit board and tooling automatic assembly and disassembly device provided in an embodiment of the present invention;

[0045] Figure 2 yes Figure 1 A top view of the

[0046] Figure 3 yes Figure 1 Side view in;

[0047] Figure 4 is a stereogram of a transfer structure provided in an embodiment of the present invention;

[0048] Figure 5 is a three-dimensional diagram of a tool provided in an embodiment of the present invention;

[0049] Figure 6 is a three-dimensional diagram of a power module production system provided in an embodiment of the present invention;

[0050] Figure 7 is a flow chart of a power module production method provided in an embodiment of the present invention.

[0051] Reference numerals:

[0052] 1. First conveyor line; 2. Second conveyor line; 3. Tooling; 31. Bottom plate; 311. Placement position; 312. Positioning pin; 32. Press plate; 321. Limit block; 4. Covering structure; 41. First drive structure; 42. Mounting frame; 43. Rotation drive device; 431. Rotating shaft; 5. Transfer structure; 51. Transfer guide rail; 52. Transfer bracket; 53. Transfer clamp; 6. Reflux channel; 7. Welding equipment; 8. Second lifting platform; 81. Second drive structure; 82. Carrying platform. DETAILED DESCRIPTION

[0053] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0054] Currently, the assembly and separation of the PCB motherboard and the positioning tooling mainly rely on manual operation. This manual operation method has many disadvantages. Specifically, the positioning tooling itself is heavy, and workers need to exert a lot of physical strength when assembling the PCB motherboard and the positioning tooling and separating them after welding, resulting in extremely high labor intensity. Moreover, the manual operation process has a long cycle time, which seriously affects the overall production efficiency.

[0055] Based on this, the present application provides a circuit board and tooling automatic assembly and disassembly device.

[0056] Example 1

[0057] See also Figure 1-Figure 5 The present embodiment provides a circuit board and tooling automatic assembly and disassembly device, wherein the tooling 3 includes a bottom plate 31 and a pressing plate 32, and a placement position 311 is provided on the bottom plate 31. The automatic assembly and disassembly device includes:

[0058] A first conveyor line 1, wherein the first conveyor line 1 is used for conveying circuit boards;

[0059] A second conveying line 2, the second conveying line 2 is used to convey the tooling 3; a covering structure 4 and a splitting structure are provided on one side of the second conveying line 2, the covering structure 4 is used to cover the pressing plate 32 on the bottom plate 31;

[0060] A transfer structure 5 is provided between the first conveyor line 1 and the second conveyor line 2 , and the transfer structure 5 is used to transfer the circuit board to the placement position 311 of the tooling 3 .

[0061] Specifically, a positioning pin 312 is provided at the edge of the placement position 311 , and a limiting block 321 is provided on the pressing plate 32 . When the pressing plate 32 is pressed onto the bottom plate 31 , the limiting block 321 abuts against the circuit board in the placement position 311 .

[0062] In actual use, the circuit board is provided with positioning holes that match the positioning pins 312. When the circuit board is placed in the placement position 311 of the tooling 3 by the transfer structure 5, the pre-designed positioning holes on the circuit board are precisely matched with the positioning pins 312 on the edge of the placement position 311 to ensure that the position of the circuit board on the placement position 311 is accurate. Subsequently, the covering structure 4 works to press the pressing plate 32 onto the bottom plate 31. As the pressing plate 32 gradually approaches the bottom plate 31, the limiting block 321 gradually abuts against the circuit board in the placement position 311, which further limits the circuit board and prevents the circuit board from being displaced during subsequent processing.

[0063] In one embodiment, the transfer structure 5 may include a robot and a vacuum suction cup. The method of using the device is as follows: the circuit board is transported by the first conveyor line 1, and the tooling 3 is transported by the second conveyor line 2. When the circuit board and the tooling 3 arrive at the set position respectively, the robot vision system of the transfer structure 5 identifies the position and posture of the circuit board, and the robot arm drives the vacuum suction cup to grab the circuit board, transfer it to the placement position 311 of the tooling 3 and release it. The covering structure 4 is started, and the motor drives the gripping mechanism of the pressing plate 32 to grab the pressing plate 32 and cover it on the bottom plate 31 to complete the assembly of the circuit board and the tooling 3. After the processing of the circuit board is completed, the tooling 3 is transported to the splitting position again, and the covering structure 4 reverses to separate the pressing plate 32 from the bottom plate 31. The robot of the transfer structure 5 grabs the circuit board on the bottom plate 31 to complete the separation of the circuit board and the tooling 3. The device can reduce labor costs and improve production efficiency, and the automatic assembly and disassembly design ensures the consistency and accuracy of each assembly and disassembly, greatly reducing product quality problems caused by improper assembly and disassembly, reducing the production of defective products, and improving the economic benefits of the enterprise.

[0064] Example 2

[0065] This embodiment is optimized based on embodiment 1.

[0066] See also Figure 1-Figure 5 In this embodiment, the pressing plate 32 is hinged to the bottom plate 31, and a clamping hole is provided on one side of the pressing plate 32;

[0067] The capping structure 4 includes a first driving structure 41 and a rotation driving device 43. The first driving structure 41 is fixed to one side of the second conveying line 2. A mounting frame 42 is provided at the output end of the first driving structure 41. The rotation driving device 43 is fixed to the mounting frame 42. A rotating shaft 431 is provided on the rotation driving device 43. The rotating shaft 431 is adapted to the clamping hole. The first driving structure 41 can be a push rod motor.

[0068] In this embodiment, when the tooling 3 arrives at the designated covering position along with the second conveyor line 2, the sensor installed beside the second conveyor line 2 detects the tooling 3 arrival signal and transmits the signal to the control system. The sensor can be a photoelectric sensor. After receiving the signal, the control system of the device immediately starts the first drive structure 41, and the output end of the first drive structure 41 extends to push the mounting frame 42 and the rotating drive device 43 (servo motor) thereon to approach the pressing plate 32 of the tooling 3. When the rotating shaft 431 of the servo motor is aligned with and clamped into the clamping hole on the pressing plate 32, the electric push rod stops moving. At this time, the servo motor receives the rotation command issued by the control system, starts to rotate, and drives the pressing plate 32 to rotate around the hinge point with the bottom plate 31 until the pressing plate 32 is completely covered on the bottom plate 31, completing the assembly action of the circuit board and the tooling 3.

[0069] When the circuit board processing is completed and the tooling 3 is transported to the separation position of the circuit board and the tooling 3 again, the servo motor rotates in the opposite direction to pull the rotating shaft 431 out of the clamping hole. Then, the electric push rod shrinks, driving the mounting frame 42 and the rotating drive device 43 back to the initial position, waiting for the next working cycle.

[0070] The entire closing and unsealing process is completed by sensors, control systems, electric push rods, servo motors and other automated components without manual intervention. This greatly improves production efficiency and reduces labor costs.

[0071] Example 3

[0072] This embodiment is optimized based on embodiment 1.

[0073] See also Figure 1-Figure 5 In this embodiment, a first lifting platform is further provided on one side of the second conveying line 2, and the first driving structure 41 is fixed on the first lifting platform.

[0074] During the conveying process of the tooling 3, the height of the tooling 3 may vary due to different batches or specifications. In order to cope with this situation, a height sensor is installed beside the second conveyor line 2 before the tooling 3 is about to reach the covering position. When the tooling 3 approaches the second conveyor line 2, the height sensor detects the height of the tooling 3 in real time and transmits the height data to the control system. The control system calculates the distance that the first lifting platform needs to rise or fall according to the preset program, and sends a command to the motor of the first lifting platform. The motor drives the screw to operate, so that the first lifting platform drives the first drive structure 41 and the rotating drive device 43 thereon to adjust to a height that matches the clamping hole of the tooling 3 pressure plate 32.

[0075] When the tooling 3 reaches the designated covering position, the electric push rod of the first driving structure 41 is started, pushing the mounting frame 42 and the rotating driving device 43 thereon to approach the pressing plate 32 of the tooling 3. The rotating shaft 431 of the rotating driving device 43 is accurately inserted into the clamping hole of the pressing plate 32, and then the rotating driving device 43 is actuated to drive the pressing plate 32 to cover the bottom plate 31. After the covering is completed, when the tooling 3 is processed and returns to the separation position, the entire process is reversed to separate the pressing plate 32 from the bottom plate 31.

[0076] In actual applications, the first lifting platform may include a cylinder and a platform, the cylinder drives the platform to rise and fall, and the first driving structure 41 is fixed on the platform.

[0077] Example 4

[0078] This embodiment is optimized based on embodiment 1.

[0079] See also Figure 1-Figure 5 In this embodiment, the transfer structure 5 includes a transfer rail 51, a transfer bracket 52 and a transfer clamp 53. The transfer rail 51 spans between the first conveyor line 1 and the second conveyor line 2. The transfer bracket 52 is movably arranged on the transfer rail 51, and the transfer clamp 53 is fixed on the transfer bracket 52. The transfer clamp adopts a pneumatic clamp, which is connected to the compressed air system of the workshop through an air pipe. The shape and size of the clamp are designed according to the shape of the circuit board, and a rubber pad is provided on the inside, which can not only firmly grasp the circuit board, but also avoid scratching and other damage to the circuit board.

[0080] In actual use, when the circuit board arrives at the designated transfer position along the first conveyor line 1, the sensor installed next to the first conveyor line 1 detects the circuit board signal and transmits it to the PLC control system. After receiving the signal, the control system immediately starts the drive motor of the transfer bracket 52, so that the transfer bracket 52 moves quickly to the top of the corresponding position of the first conveyor line 1. Subsequently, the pneumatic clamping jaws of the transfer clamp 53 are opened under the drive of compressed air, and then closed after descending to the appropriate position above the circuit board to grab the circuit board. Then, the drive motor runs in reverse, driving the transfer bracket 52 to move above the placement position 311 of the tooling 3 of the second conveyor line 2. The transfer clamp 53 moves again, releases the clamping jaws, and accurately places the circuit board on the placement position 311 of the tooling 3, completing a circuit board transfer operation.

[0081] The cooperation between the transfer guide rail 51 and the transfer bracket 52 , as well as the precise control of the motor and the PLC control system, enables the transfer clamp 53 to be accurately moved and positioned between the first conveyor line 1 and the second conveyor line 2 .

[0082] The transfer structure 5 completely replaces the manual work of moving the circuit board, greatly reducing the labor intensity of workers. Workers no longer need to frequently move the circuit board manually, and can devote their energy to more valuable work such as production link monitoring and equipment maintenance.

[0083] Example 5

[0084] See also Figure 1-Figure 6 This embodiment provides a power module production system, including a welding device 7 and the circuit board and tooling automatic assembly and disassembly device as described above.

[0085] In this embodiment, the welding device 7 includes an inlet end and an outlet end, and the circuit board and tooling automatic assembly and disassembly device is provided at the inlet end and the outlet end;

[0086] A reflux channel 6 is provided between the inlet end and the outlet end, and the reflux channel 6 is used to send the tooling 3 at the outlet end back to the inlet end.

[0087] At the entrance end of the welding equipment 7, the automatic assembly and disassembly device of the circuit board and the tooling is responsible for assembling the circuit board onto the tooling 3. The specific process is: the first conveyor line 1 conveys the circuit board to the designated position, the transfer clamp 53 in the transfer structure 5 grabs the circuit board, and transfers it to the placement position 311 of the tooling 3 of the second conveyor line 2, and the positioning pins 312 on the edge of the placement position 311 cooperate with the positioning holes of the circuit board to ensure the precise positioning of the circuit board. Subsequently, the covering structure 4 is started, the limit block 321 on the pressure plate 32 abuts against the circuit board, and the pressure plate 32 is covered on the bottom plate 31 to complete the assembly of the circuit board and the tooling 3. The assembled tooling 3 enters the entrance end of the welding equipment 7 via the second conveyor line 2, and the welding process begins. The production system realizes the rapid assembly and disassembly of the circuit board and the tooling 3 through the automatic assembly and disassembly devices at the entrance and exit ends of the welding equipment 7, reducing the manual operation time.

[0088] During the entire production process, most of the assembly, disassembly and transportation work is completed by automatic devices, which reduces manual participation, labor intensity and labor costs.

[0089] More preferably, in this embodiment, a second lifting platform 8 is respectively provided at the inlet end and the outlet end, and the second lifting platform 8 is provided in the second conveying line 2;

[0090] The second lifting platform 8 includes a second driving structure 81, a supporting platform 82 and a weight sensor. The second driving structure 81 is arranged in the second conveying line 2. The supporting platform 82 is fixed at the output end of the second driving structure 81. The weight sensor is arranged at the bottom of the supporting platform 82.

[0091] During the production process, at the entrance of the welding equipment 7, when the tooling 3 and the circuit board are transported to this position through the second conveyor line 2, the weight sensor will monitor the weight of the carrier 82 in real time. The second drive structure 81 will adjust the carrier 82 to a suitable height according to the needs of the assembly or disassembly operation of the circuit board and the tooling 3. For example, when the circuit board needs to be assembled to the tooling 3, the second drive structure 81 will raise the carrier 82 to a height that matches the transfer structure 5, so that the transfer clamp 53 can accurately place the circuit board on the placement position 311 of the tooling 3.

[0092] At the outlet of the welding equipment 7, when the welded tooling 3 and the circuit board are transported to the second lifting platform 8, the weight sensor will detect that the tooling 3 is in place, and the second driving structure 81 will raise or lower the bearing platform 82, so that the tooling 3 and the circuit board are in a suitable position, which is convenient for subsequent separation and transfer operations. For example, during the separation operation, the second driving structure 81 raises the bearing platform 82 to a height matching the separation structure, which is convenient for the separation structure to separate the pressing plate 32 from the bottom plate 31.

[0093] In this embodiment, the outlet of the reflux channel 6 is connected to the second lifting platform 8 , and a photoelectric sensor is disposed at the outlet of the reflux channel 6 .

[0094] In the power module production system, the reflux channel 6 undertakes the important task of sending the tooling 3 at the outlet end back to the inlet end for reuse after welding. The outlet of the reflux channel 6 is precisely docked with the second lifting platform 8, and a photoelectric sensor is installed at the outlet of the reflux channel 6. The photoelectric sensor can continuously emit and receive infrared signals to monitor the arrival of the tooling 3 in real time.

[0095] When the tooling 3 moves to the exit position along with the reflux channel 6, the tooling 3 will block the infrared rays emitted by the photoelectric sensor, causing the signal it receives to change. The photoelectric sensor quickly transmits this signal change to the control system connected to it. After receiving the signal, the control system immediately sends an instruction to the second drive structure 81 of the second lifting platform 8. The second drive structure 81, such as the electric cylinder described above, starts quickly after receiving the instruction and drives the carrier 82 to rise. The rising speed and height of the carrier 82 are precisely controlled according to the preset program to ensure that when the tooling 3 arrives, the carrier 82 just rises to the appropriate height and can seamlessly receive the tooling 3, so that the tooling 3 can be smoothly transferred to the second lifting platform 8. After the tooling 3 arrives at the second lifting platform 8, the weight sensor will perform a weight detection on the tooling 3 to ensure that the tooling 3 is in normal condition. Subsequently, the second lifting platform 8 transports the tooling 3 to the corresponding position according to the needs of the production process to carry out the next round of circuit board assembly and other operations.

[0096] Example 6

[0097] See also Figure 1-Figure 7 , this embodiment provides a power module production method, which is implemented based on the power module production system as described above;

[0098] The method comprises:

[0099] S100, inserting components into the circuit board;

[0100] On the assembly workbench, the operator refers to the circuit board design drawings and accurately inserts various components into the corresponding positions on the circuit board.

[0101] S200, placing the circuit board with components inserted on the placement position 311 of the tool 3;

[0102] The circuit board with components inserted is placed at the starting position of the first conveyor line 1, and the first conveyor line 1 conveys the circuit board to the bottom of the transfer structure 5 at a set speed. After the sensor in the transfer structure 5 detects that the circuit board is in place, the transfer clamp 53 descends and grabs the circuit board under the command of the control system. The transfer clamp 53 adjusts the clamping force according to the shape and size of the circuit board through a preset program to ensure that the circuit board is firmly grasped without damaging the circuit board. Subsequently, the transfer bracket 52 moves along the transfer guide rail 51 to accurately place the circuit board on the placement position 311 of the tooling 3 of the second conveyor line 2. During the placement process, the positioning pins 312 on the edge of the placement position 311 of the tooling 3 accurately match the positioning holes on the circuit board to ensure that the position of the circuit board in the tooling 3 is accurate.

[0103] S300, using the covering structure 4 to cover the pressing plate 32 on the bottom plate 31, and sending the tooling 3 to the welding equipment 7 for welding;

[0104] The tooling 3 moves to the covering structure 4 along with the second conveyor line 2. At this time, the second lifting platform 8 adjusts the carrier 82 to a suitable height through the second driving structure 81 according to the height information of the tooling 3. The first driving structure 41 in the covering structure 4 is started, pushing the mounting frame 42 and the rotating driving device 43 close to the tooling 3. The rotating shaft 431 of the rotating driving device 43 is aligned with and inserted into the clamping hole on the pressing plate 32, and then the rotating driving device 43 is activated to drive the pressing plate 32 to rotate around the hinge point until the pressing plate 32 is completely covered on the bottom plate 31, and the limit block 321 on the pressing plate 32 is tightly abutted against the circuit board, which further limits the circuit board. The tooling 3 that has completed the covering is sent to the entrance end of the welding equipment 7 through the second conveyor line 2. Inside the welding equipment 7, the tooling 3 completes the selective welding of components on the circuit board according to the preset track and process parameters.

[0105] S400 , after the welding is completed, the pressing plate 32 is opened by using the covering structure 4 , and the circuit board is taken out from the bottom plate 31 by using the transfer structure 5 .

[0106] After welding is completed, the tooling 3 is output from the outlet of the welding equipment 7 and arrives at the circuit board and tooling automatic assembly and disassembly device at the outlet. The covering structure 4 is started again, and the rotation drive device 43 rotates in the opposite direction to pull the rotating shaft 431 out of the clamping hole. Then the first drive structure 41 contracts, driving the mounting frame 42 and the rotation drive device 43 back to the initial position, and the pressure plate 32 is separated from the base plate 31. Under the command of the control system, the transfer clamp 53 of the transfer structure 5 descends to grab the circuit board on the base plate 31. After the transfer clamp 53 grabs the circuit board, the transfer bracket 52 moves to place the circuit board on the subsequent conveyor line for subsequent processes such as quality inspection and packaging. At the same time, the tooling 3 returns to the entrance of the welding equipment 7 through the reflux channel 6 for the next round of recycling.

[0107] This method can effectively improve the assembly and disassembly time between the circuit board and the tooling 3, thereby reducing production costs.

[0108] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0109] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0110] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A circuit board and tooling automatic assembly and disassembly device, the tooling (3) comprising a bottom plate (31) and a pressing plate (32), the bottom plate (31) being provided with a placement position (311), characterized in that: The automatic assembly and disassembly device comprises: A first conveying line (1), wherein the first conveying line (1) is used to convey a circuit board; A second conveying line (2), the second conveying line (2) being used to convey the tooling (3); a covering structure (4) and a splitting structure are provided on one side of the second conveying line (2), the covering structure (4) being used to cover the pressing plate (32) on the bottom plate (31); A transfer structure (5) is provided between the first conveyor line (1) and the second conveyor line (2), and the transfer structure (5) is used to transfer the circuit board to the placement position (311) of the tooling (3).

2. The circuit board and tooling automatic assembly and disassembly device according to claim 1, characterized in that: The pressing plate (32) is hinged to the bottom plate (31), and a clamping hole is provided on one side of the pressing plate (32); The covering structure (4) comprises a first driving structure (41) and a rotating driving device (43), wherein the first driving structure (41) is fixed on one side of the second conveying line (2), a mounting frame (42) is provided at the output end of the first driving structure (41), the rotating driving device (43) is fixed on the mounting frame (42), a rotating shaft (431) is provided on the rotating driving device (43), and the rotating shaft (431) is adapted to the clamping hole.

3. The circuit board and tooling automatic assembly and disassembly device according to claim 2, characterized in that: A first lifting platform is also provided on one side of the second conveying line (2), and the first driving structure (41) is fixed on the first lifting platform.

4. The circuit board and tooling automatic assembly and disassembly device according to any one of claims 1 to 3, characterized in that: The transfer structure (5) comprises a transfer guide rail (51), a transfer bracket (52) and a transfer clamp (53); the transfer guide rail (51) spans between the first conveyor line (1) and the second conveyor line (2); the transfer bracket (52) is movably arranged on the transfer guide rail (51); and the transfer clamp (53) is fixed on the transfer bracket (52).

5. The circuit board and tooling automatic assembly and disassembly device according to any one of claims 1 to 3, characterized in that: A positioning pin (312) is provided at the edge of the placement position (311), and a limiting block (321) is provided on the pressing plate (32); when the pressing plate (32) is pressed onto the bottom plate (31), the limiting block (321) abuts against the circuit board in the placement position (311).

6. A power module production system, characterized in that: It comprises welding equipment (7) and the automatic assembly and disassembly device of a circuit board and tooling as claimed in any one of claims 1 to 5.

7. The power module production system according to claim 6, characterized in that: The welding equipment (7) comprises an inlet end and an outlet end, and the inlet end and the outlet end are both provided with the circuit board and tooling automatic assembly and disassembly device; A reflux channel (6) is provided between the inlet end and the outlet end, and the reflux channel (6) is used to return the tooling (3) at the outlet end to the inlet end.

8. The power module production system according to claim 7, characterized in that: A second lifting platform (8) is respectively provided at the inlet end and the outlet end, and the second lifting platform (8) is provided in the second conveying line (2); The second lifting platform (8) comprises a second driving structure (81), a bearing platform (82) and a weight sensor, wherein the second driving structure (81) is arranged in the second conveying line (2), the bearing platform (82) is fixed at the output end of the second driving structure (81), and the weight sensor is arranged at the bottom of the bearing platform (82).

9. The power module production system according to claim 8, characterized in that: The outlet of the reflux channel (6) is connected to the second lifting platform (8), and a photoelectric sensor is arranged at the outlet of the reflux channel (6).

10. A method for producing a power module, characterized in that: Implemented based on the power module production system according to any one of claims 7 to 9; The method comprises: Insert components on the circuit board; Placing the circuit board with components inserted on the placement position (311) of the tooling (3); The pressing plate (32) is covered on the bottom plate (31) by using the covering structure (4), and the tooling (3) is sent into the welding equipment (7) for welding; After welding is completed, the pressing plate (32) is opened using the covering structure (4), and the circuit board is removed from the bottom plate (31) using the transfer structure (5).

Images