An intelligent motor housing welding workstation

Abstract

The present invention discloses an intelligent motor housing welding workstation, which is applied to the technical field of motor housings, and comprises a workbench, a heat sink, a walking welding robot and an intelligent welding system arranged on the left side of the workbench, wherein the workbench is used to fix and clamp the motor housing to be welded, and the intelligent welding system is used to input a preset program, and then perform the welding of the heat sink according to the instruction, collect relevant data in real time and feedback, and make a welding condition judgment; the workbench comprises a bracket, a driving frame and an auxiliary support component, the front side bearing of the driving frame is connected to an electric chuck, and the auxiliary support component is used to auxiliary support the motor housing to be processed; the walking welding robot comprises a moving track, a driving part, a fine-tuning component and a mechanical arm; the present invention can reduce the labor intensity of the staff, improve the welding efficiency and welding quality, and ensure the aesthetics of the welding.

Description

Technical Field

[0001] The invention relates to the technical field of motor casings, in particular to an intelligent motor casing welding workstation. Background Art

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil, that is, a stator winding, to generate a rotating magnetic field and act on the rotor to form a magnetic-electromotive force rotation torque.

[0003] The air-cooled motor casing is welded with heat sinks. When welding the heat sinks, the operator needs to constantly rotate the direction to weld the motor casing in all directions. However, the existing motor casing welding auxiliary tooling cannot adjust the rotation direction, and the heat sink welding operation is high in intensity and low in work efficiency, making it difficult to ensure the consistency of the weld and the overall aesthetics.

[0004] Therefore, it is necessary to provide an intelligent motor housing welding workstation to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent motor housing welding workstation, which can reduce the labor intensity of workers, improve welding efficiency, welding quality and overall aesthetics, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent motor housing welding workstation, comprising a workbench, a heat sink, a walking welding robot arranged on the left side of the workbench, and an intelligent welding system.

[0007] The workbench is used to fix and clamp the motor housing to be welded. The heat sink is used to be welded on the motor housing to improve the heat dissipation performance of the motor. The walking welding robot is used to move and weld the heat sink on the motor housing. The intelligent welding system is used to input the preset program and then perform the welding of the heat sink according to the instructions. It collects relevant data in real time and provides feedback to judge the welding situation.

[0008] The workbench includes a bracket, a driving frame and an auxiliary support assembly. The front bearing of the driving frame is connected to an electric chuck. The auxiliary support assembly is used to auxiliary support the motor housing to be processed.

[0009] The walking welding robot includes a moving track, a driving part, a fine-tuning component and a mechanical arm;

[0010] A welding head is connected to the end of the robot arm, a protective plate is fixedly connected to the welding head, a camera is fixedly connected inside the protective plate, a temperature sensor is fixedly connected to the protective plate, an air cooling pipe is arranged on the top of the protective plate, a cooling fan is connected to the air cooling pipe, the welding head is used to weld the heat sink to the motor housing, the camera is used to monitor the welding screen, the air cooling pipe is used to cool the welding point, and the temperature sensor is used to detect the temperature of the weld after welding;

[0011] The intelligent welding system includes an acquisition module, an analysis module, a control module and an alarm module. The acquisition module is used to monitor the welding condition of the heat sink and the temperature of the weld. The analysis module is used to make judgments and analyses based on the temperatures of the heat sink and the weld. The control module is used to control and adjust the angle between the drive frame and the bracket, the rotation speed of the motor housing on the electric chuck and the moving speed of the robotic arm.

[0012] The welding situation can be monitored to ensure that the two adjacent groups of heat sinks are parallel and the two ends of the heat sink are on the same straight line, which not only reduces the labor intensity of the staff, but also improves the welding efficiency and quality, while the aesthetics of the motor housing is also guaranteed.

[0013] According to the above technical scheme, the driving frame is arranged on the top of the bracket, the auxiliary support assembly is slidably connected to the bracket, the left side of the bracket is fixedly connected to motor 2, motor 2 is connected to shaft 1 by a worm gear transmission, shaft 1 is connected to the bracket bearing, shaft 1 is fixedly connected to the driving frame, the rear side of the driving frame is fixedly connected to motor 1, motor 1 drives the electric chuck to rotate by gear transmission, a control panel is arranged on the right side of the driving frame, the control panel is provided with a power switch, a speed regulating knob and an angle adjustment knob, which can flexibly adjust the rotation speed of the motor housing to be welded and the angle between the motor housing and the housing during welding, and has a wider range of applications.

[0014] According to the above technical scheme, the auxiliary support assembly includes two groups of mobile frames, the mobile frame is slidably connected to the bracket, a fastening bolt is arranged above the connection between the bracket and the mobile frame, a roller is connected to the bearing on the side of the mobile frame, the bottom of the roller is in contact with the top of the bracket, the left side of the mobile frame is fixedly connected to the limit plate, two groups of limit grooves are opened on the limit plate, a rotating frame is arranged on the side of the limit plate, the rotating frame is fixed to the side of the limit plate by two groups of fixing bolts, a telescopic rod is slidably connected in the rotating frame, a fastening bolt is threadedly connected on the rotating frame, and two rollers are respectively connected to the bearings on the sides of the two groups of telescopic rods. The support height and support position can be flexibly adjusted according to the size of the motor to be fixed, and will not affect the normal rotation of the motor casing during processing.

[0015] According to the above technical solution, the moving track is arranged on the left side of the workbench, the driving part is arranged on the moving track, the fine-tuning component and the mechanical arm are arranged on the driving part, the driving part is used to drive the mechanical arm to slide on the moving track, the fine-tuning component is used to fine-tune the position of the mechanical arm on the driving part, the driving part includes a moving frame one, the moving frame one is slidably connected to the moving track, a motor three is fixedly connected to one side of the moving frame, the motor three is connected to the moving track by a gear rack transmission, the moving frame two is slidably connected to the moving frame one, the mechanical arm is fixed to the top of the moving frame two, and after the motor three is started, it can drive the mechanical arm to move horizontally on the moving frame two.

[0016] According to the above technical solution, the fine-tuning component includes a fixed block, which is fixed to the side of the second mobile frame. A handle is connected to the bearing on the fixed block. The handle is connected to the first mobile frame by a gear rack transmission. By rotating the handle, the second mobile frame can be driven to fine-tune its position on the first mobile frame, thereby fine-tuning the position of the robotic arm on the first mobile frame.

[0017] According to the above technical solution, the acquisition module is electrically connected to the camera and the temperature sensor, and the analysis module is set with a weld temperature limit, which is recorded as The control module is electrically connected to motor one, motor two, motor three, the robotic arm and the welding head.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing a workbench and a walking welding robot, can automatically weld the heat sink on the motor housing, thereby reducing the labor intensity of the staff and improving the welding efficiency; the welded heat sink can also be inspected to ensure that the welded heat sinks are parallel to each other, thereby avoiding the welded heat sinks from tilting or poor weld quality from affecting the aesthetics of the motor housing, thereby facilitating improving the welding quality and reducing the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the workbench structure of the present invention;

[0022] Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0023] Figure 4 It is a schematic diagram of the connection structure between the limit plate and the rotating frame of the present invention;

[0024] Figure 5It is a rear view structural schematic diagram of the walking welding robot of the present invention;

[0025] Figure 6 The present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0026] Figure 7 The present invention Figure 5 Schematic diagram of the enlarged structure of the middle C area;

[0027] Figure 8 It is a schematic diagram of the first group of heat sinks recognized by the screen in the intelligent welding system of the present invention;

[0028] Fig. 9 It is a schematic diagram of two adjacent groups of heat sinks identified by the screen in the intelligent welding system of the present invention;

[0029] In the figure: 1, workbench; 11, bracket; 12, driving frame; 13, electric chuck; 14, motor 1; 15, motor 2; 16, auxiliary support assembly; 161, moving frame; 162, roller 1; 163, limit plate; 164, rotating frame; 165, telescopic rod; 166, roller 2; 17, control panel;

[0030] 2. Walking welding robot; 21. Moving track; 22. Driving unit; 221. Moving frame 1; 222. Moving frame 2; 223. Motor 3; 23. Fine-tuning assembly; 231. Fixing block; 232. Handle; 24. Robotic arm; 25. Welding head; 26. Protective plate; 27. Camera; 28. Air cooling pipe; 29. ​​Temperature sensor;

[0031] 3. Heat sink; 31. Vertical projection profile 1; 32. Continuous welding profile 1; 33. Center line 1; 34. Center line 2; 35. Center line; 36. Vertical projection profile 2; 37. Center line 3; 38. Continuous welding profile 2; 39. Center line 4;

[0032] 4. Motor housing profile. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-9The present invention provides a technical solution: an intelligent motor housing welding workstation, comprising a workbench 1, a heat sink 3, a walking welding robot 2 and an intelligent welding system arranged on the left side of the workbench 1, the workbench 1 is used to fix and clamp the motor housing to be welded, the heat sink 3 is used to be welded on the motor housing to improve the heat dissipation performance of the motor, the walking welding robot 2 is used to move and weld the heat sink 3 on the motor housing, the intelligent welding system is used to input a preset program, and then execute the welding of the heat sink 3 according to the instruction, collect relevant data in real time and feedback, and judge the welding situation.

[0035] See also Figure 2 The workbench 1 includes a bracket 11, a driving frame 12 and an auxiliary support assembly 16. The driving frame 12 is arranged on the top of the bracket 11. The auxiliary support assembly 16 is slidably connected to the bracket 11. The auxiliary support assembly 16 is used to auxiliary support the motor housing to be processed.

[0036] A motor 2 15 is fixedly connected to the left side of the bracket 11. The motor 2 15 is connected to a rotating shaft 1 by a worm gear transmission. The rotating shaft 1 is connected to a bearing of the bracket 11, and the rotating shaft 1 is fixedly connected to the driving frame 12. The motor 2 15 is used to control the rotation of the driving frame 12 and adjust the rotation angle. An electric chuck 13 is connected to a bearing on the front side of the driving frame 12. A motor 14 is fixedly connected to the rear side of the driving frame 12. The motor 14 drives the electric chuck 13 to rotate by a gear transmission. The electric chuck 13 is used to automatically adjust and clamp the motor housing to be processed. The motor 14 is used to control the rotation of the electric chuck 13 and adjust the rotation angle and rotation speed. A control panel 17 is provided on the right side of the driving frame 12. The control panel 17 is provided with a power switch, a speed control knob and an angle adjustment knob. The control panel 17 is used to adjust the rotation speed, rotation interval and the starting rotation angle of the motor 14 15.

[0037] In actual operation, the staff controls the electric chuck 13 to fix the motor casing to be welded, then turns on the equipment by operating the power switch on the control panel 17, adjusts the speed control knob and the angle adjustment knob, thereby starting the motor 2 15 to adjust the relative angle between the motor casing and the bracket 11, and starts the motor 1 14 to adjust the speed at which the electric chuck 13 drives the motor casing to rotate during welding.

[0038] See also Figure 3 and Figure 4The auxiliary support assembly 16 includes two groups of mobile frames 161, the mobile frames 161 are slidably connected to the bracket 11, and a fastening bolt 1 is arranged above the connection between the bracket 11 and the mobile frame 161. The fastening bolt 1 is used to fix the mobile frame 161 to prevent the mobile frame 161 from moving. The side bearing of the mobile frame 161 is connected to a roller 162, and the bottom of the roller 162 contacts the top of the bracket 11. The left side of the mobile frame 161 is fixedly connected to a limiting plate 163, and two groups of limiting slide grooves are opened on the limiting plate 163. A rotating frame 164 is arranged on the side of the limiting plate 163. The rotating frame 164 adopts two groups of fixed The fixed bolts are fixed to the side of the limit plate 163, one group of bolts is fixed relative to the limit plate 163, and the other group of bolts is set in the limit slide groove, which is used to adjust and fix the angle of the rotating frame 164, so as to be suitable for auxiliary support of motor housings of different sizes. A telescopic rod 165 is slidably connected in the rotating frame 164, and a second fastening bolt is threadedly connected on the rotating frame 164. The second fastening bolt is used to fix the position of the telescopic rod 165 to prevent the telescopic rod 165 from moving. The two groups of telescopic rods 165 are respectively connected to the bearings of the second roller 166 on the side close to each other. The second roller 166 is used to auxiliary support the motor housing to be welded.

[0039] In actual operation, the staff loosens the fastening bolt 1 according to the size of the motor housing to be welded, manually pulls the limit plate 163 to drive the mobile frame 161 to move below the position where support is required, and then tightens the fastening bolt 1 to fix the position of the mobile frame 161; then loosens the two sets of fixing bolts connecting the rotating frame 164 and the limit plate 163, adjusts the lateral angle between the rotating frame 164 and the bracket 11, and then tightens the fixing bolts to fix the position of the rotating frame 164; finally, loosens the fastening bolt 2, manually pulls the telescopic rod 165 until the roller 2 166 contacts the bottom of the motor housing to be welded, and then tightens the fastening bolt 2 to fix the position of the telescopic rod 165, so that the motor housing to be welded can be auxiliary supported without affecting the normal rotation of the motor housing.

[0040] See also Figure 1 , Figure 5-Figure 7 The walking welding robot 2 includes a moving track 21, a driving unit 22, a fine-tuning component 23 and a mechanical arm 24. The moving track 21 is arranged on the left side of the workbench 1, and the driving unit 22 is arranged on the moving track 21. The fine-tuning component 23 and the mechanical arm 24 are arranged on the driving unit 22. The driving unit 22 is used to drive the mechanical arm 24 to slide on the moving track 21. The fine-tuning component 23 is used to fine-tune the position of the mechanical arm 24 on the driving unit 22. The driving unit 22 includes a moving frame 221, and the moving frame 221 is slidably connected to the moving track 21. The side of the moving frame 221 is fixedly connected with a motor 3 223. The motor 3 223 is connected to the moving track 21 by a gear rack transmission. The moving frame 221 is slidably connected with a moving frame 222, and the mechanical arm 24 is fixed to the top of the moving frame 222.

[0041] In actual operation, the motor three 223 is started, and drives the moving frame one 221 to slide on the moving track 21 through the gear rack transmission mode, thereby driving the mechanical arm 24 to move in the horizontal direction.

[0042] See also Figure 5 and Figure 6 The fine-tuning assembly 23 includes a fixed block 231, which is fixed to the side of the second moving frame 222. A handle 232 is connected to the bearing on the fixed block 231, and the handle 232 is connected to the first moving frame 221 by a gear rack transmission.

[0043] In actual operation, the staff turns the handle 232 to drive the second moving frame 222 to move on the first moving frame 221 through the gear rack transmission, and fine-tunes the position of the second moving frame 222 on the first moving frame 221, that is, fine-tunes the position of the mechanical arm 24 on the first moving frame 221.

[0044] See also Figure 5 and Figure 7 A welding head 25 is connected to the end of the robotic arm 24, a protective plate 26 is fixedly connected to the welding head 25, a camera 27 is fixedly connected inside the protective plate 26, a temperature sensor 29 is fixedly connected to the protective plate 26, an air cooling pipe 28 is arranged on the top of the protective plate 26, and the air cooling pipe 28 is connected to a cold air blower. The welding head 25 is used to weld the heat sink 3 to the motor housing, the protective plate 26 is used to protect the camera 27, the camera 27 is used to monitor the welding screen, the air cooling pipe 28 is used to cool the welding point, and the temperature sensor 29 is preferably an infrared imager, which is used to detect the temperature of the weld after welding.

[0045] The intelligent motor housing welding workstation also includes a clamping and fixing mechanical claw, which is used to clamp the heat sink 3 and cooperate with the walking welding robot 2 to perform welding.

[0046] The intelligent welding system includes an acquisition module, an analysis module, a control module and an alarm module. The acquisition module is electrically connected to the camera 27 and the temperature sensor 29 to monitor the welding condition of the heat sink 3 and the weld temperature. The analysis module is used to make judgments and analyses based on the heat sink 3 and the weld temperature. The analysis module is provided with a weld temperature limit value, which is recorded as The control module is electrically connected to motor 1 14 , motor 2 15 , motor 3 223 , the robotic arm 24 and the welding head 25 , and is used to control and adjust the angle between the driving frame 12 and the bracket 11 , the rotation speed of the motor housing on the electric chuck 13 and the moving speed of the robotic arm 24 .

[0047] Working method of intelligent motor housing welding workstation:

[0048] Step 1: Install the motor housing to be welded, set the rotation speed of the motor housing during welding, adjust the motor housing to be parallel to the bracket 11, and manually adjust the support position and height of the auxiliary support assembly 16 according to the size of the motor housing.

[0049] Step 2: Solder the heat sink 3 and check the welding condition.

[0050] Step 2-1: Spot weld the ends of the first group of heat sinks 3, and perform image recognition and analysis.

[0051] See also Figure 8 Specifically, the clamping and fixing mechanical claw clamps the heat sink 3 to the top of the motor housing, the control module controls the motor three 223 to start and drive the mechanical arm 24 to move to the position corresponding to the welding starting point, and then controls the mechanical arm 24 to drive the welding head 25 to descend, and spot welds the starting point of the heat sink 3, and then the control module controls the motor three 223 to restart and drive the mechanical arm 24 to move to the position corresponding to the welding end point, and then controls the mechanical arm 24 to drive the welding head 25 to descend, and spot welds the end point of the heat sink 3, and the acquisition module acquires the picture taken by the camera 27 and performs picture recognition.

[0052] When the first group of heat sinks 3 are fixed by spot welding, the image recognition content includes the motor housing contour 4, the vertical projection contour 31 of the heat sink 3 on the motor housing, the center line 33 of the vertical projection contour 31, the maximum vertical spacing 1 and the minimum vertical spacing 1 between the center line 33 and the bottom of the motor housing contour 4, and the maximum vertical spacing 1 is recorded as , the minimum spacing is recorded as , the horizontal distance between the right side of the vertical projection contour 31 and the right side of the motor housing contour 4 is two, and the distance two is recorded as L.

[0053] The analysis module is provided with a standard spacing range 1 between the center line 33 and the bottom of the motor housing profile 4, and the standard spacing range 1 is , The minimum spacing allowed in the standard spacing range is Also provided is a standard vertical projection profile 31 right side and the motor housing profile 4 right side between the spacing range 2, the standard spacing range 2 is , This is the minimum spacing allowed in standard spacing range 2. This is the maximum spacing allowed in standard spacing range 2.

[0054] exist , When the horizontal spacing is 1 and the maximum and minimum spacings in the vertical direction are normal, the subsequent steps can be carried out. It is the best ideal state;

[0055] exist , When the vertical spacing is abnormal, if , the center line 33 is straight, and the feedback is sent to the alarm module. After the staff removes the heat sink 3, the rotation angle of the motor 14 is adjusted. When the rotation angle is increased, , reduce the rotation angle; if , the center line 33 is tilted, and the rotation of motor 14 is affected during the spot welding process. The staff inspected and repaired motor 14;

[0056] exist When the horizontal spacing is abnormal, the alarm module is fed back. After the staff removes the heat sink 3, they manually turn the handle 232 to fine-tune the position of the mechanical arm 24 on the mobile frame. When the control moves away from the electric chuck 13, the moving distance is ,exist When the control moves toward the electric chuck 13, the moving distance is .

[0057] Step 2-2: After continuously welding the first group of heat sinks 3, image recognition and analysis are performed.

[0058] See also Figure 8 Specifically, the clamping and fixing mechanical claw releases the heat sink 3 after spot welding, the control module controls the motor 3 223 to start, controls the mechanical arm 24 and the welding head 25 on the mechanical arm 24 to operate, and connects and welds the first group of heat sinks 3 that are spot welded. After welding is completed, the acquisition module captures the picture taken by the camera 27 and performs picture recognition. The acquisition module also collects the highest temperature T of the weld.

[0059] When continuously welding the first group of heat sinks 3, the screen recognition content includes the motor housing contour 4, the continuous welding contour 1 32, the center line 2 34 of the continuous welding contour 1 32, the maximum vertical spacing 3 and the minimum vertical spacing 3 between the center line 2 34 and the bottom of the motor housing contour 4, and the maximum vertical spacing 3 is recorded as , the minimum spacing is recorded as .

[0060] The analysis module is provided with a standard spacing range 3 between the center line 2 34 and the bottom of the motor housing profile 4. The standard spacing range 3 is , This is the minimum spacing allowed in standard spacing range 3. This is the maximum spacing allowed in standard spacing range three.

[0061] exist When the maximum and minimum spacing of the welds in the vertical direction are normal, the subsequent steps can be carried out. It is the best ideal state.

[0062] exist , When the vertical weld spacing is abnormal, if , the center line 2 34 is straight, and the feedback is sent to the alarm module. After the staff removes the heat sink 3, the rotation angle of the motor 14 is adjusted. When the rotation angle is increased, , reduce the rotation angle; if , the center line is tilted 34, the welding speed is slow, and the weld nodule is generated. If T> , because the temperature of the weld is high, feedback is given to the control module to increase the speed of the motor 3 223, increase the moving speed of the robot arm 24, and control the cooling fan to start at the same time to cool the welding part. If T< , which is fed back to the control module to reduce the rotation speed of the motor three 223 and slow down the moving speed of the robotic arm 24.

[0063] Step 2-3: After spot welding the second group of heat sinks 3, image recognition and analysis are performed.

[0064] See also Fig. 9 Specifically, after the motor 14 starts to rotate a certain angle, the second group of heat sinks 3 are spot welded. The operation method of spot welding the second group of heat sinks 3 is consistent with the operation method of step 2-spot welding the first group of heat sinks 3, and the analysis method is consistent. The difference is that the image recognition content in this step is the center line 35 of the vertical projection contour of the previous group of heat sinks 3 on the motor housing, the vertical projection contour 2 36 of the current group of heat sinks 3 on the motor housing, the center line 3 37 of the vertical projection contour 2 36, the maximum vertical spacing 4 and the minimum spacing 4 between the center line 3 37 and the center line 35, and the maximum spacing 4 is recorded as , the minimum spacing is , the horizontal distance between the right side of the vertical projection contour 2 36 and the right side of the motor housing contour 4 is five, and the distance five is recorded as M; the analysis module is provided with a vertical distance range four between the standard center line 3 37 and the center line 35, and the standard distance range four is , This is the minimum spacing allowed in standard spacing range 4. is the maximum spacing allowed by the standard spacing range 4, and a spacing range between the right side of the standard vertical projection profile 2 36 and the right side of the motor housing profile 4 is also provided. The standard spacing range 5 is , This is the minimum spacing allowed in standard spacing range 5. This is the maximum spacing allowed in standard spacing range five.

[0065] It should be noted that the center line 35 is a line connecting the midpoints of the two end edges of the vertical projection contour of the first group of heat sinks 3 on the motor housing.

[0066] Step 2-4: After continuously welding the second group of heat sinks 3, image recognition and analysis are performed.

[0067] See also Fig. 9 Specifically, the method of continuously welding the heat sink 3 in this step is consistent with the operation method and analysis method of step 2-2 continuous welding of the first group of heat sinks 3. The difference is that the image recognition content includes the motor housing contour 4, the continuous welding contour 2 38, the center line 4 39 of the continuous welding contour 2 38, the maximum vertical spacing 6 and the minimum spacing 6 between the center line 4 39 and the center line 35, and the maximum spacing 6 is recorded as , the minimum spacing is six The analysis module is provided with a standard center line 39 and the center line 35 at the bottom of the spacing range of six, the standard spacing range of six is , The minimum spacing allowed in standard spacing range 6. This is the maximum spacing allowed in standard spacing range six.

[0068] Step 2-5: Repeat steps 2-3 and 2-4 until the last set of heat sink 3 is welded.

[0069] It should be noted that when the welding quality is stable and the parallelism of multiple groups of heat sinks 3 connected and welded is good with the previous group, only steps 2-4 can be repeated in steps 2-5 to carry out continuous welding of the subsequent group of heat sinks 3, thereby reducing the time for spot welding and image recognition and analysis after spot welding, thereby further improving the welding efficiency.

[0070] Through the above steps, the heat sink 3 on the motor housing can be automatically welded, which reduces the labor intensity of the staff and improves the welding efficiency. The welded heat sink 3 can also be inspected to avoid the welded heat sink 3 being tilted or the weld quality being poor, which affects the aesthetics of the motor housing, thereby helping to improve the welding quality and reduce the defective rate.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent motor housing welding workstation, comprising a workbench (1), a heat sink (3), a walking welding robot (2) arranged on the left side of the workbench (1), and an intelligent welding system, characterized in that: The workbench (1) is used to fix and clamp the motor housing to be welded, the heat sink (3) is used to be welded on the motor housing to improve the heat dissipation performance of the motor, the walking welding robot (2) is used to move and weld the heat sink (3) on the motor housing, and the intelligent welding system is used to input a preset program and then perform welding of the heat sink (3) according to instructions, collect relevant data in real time and provide feedback to judge the welding situation; The workbench (1) comprises a bracket (11), a driving frame (12) and an auxiliary support assembly (16); the front bearing of the driving frame (12) is connected to an electric chuck (13); and the auxiliary support assembly (16) is used to auxiliary support a motor housing to be processed; The walking welding robot (2) comprises a moving track (21), a driving unit (22), a fine-tuning component (23) and a mechanical arm (24); The end of the mechanical arm (24) is connected to a welding head (25), a protective plate (26) is fixedly connected to the welding head (25), a camera (27) is fixedly connected inside the protective plate (26), a temperature sensor (29) is fixedly connected to the protective plate (26), an air cooling pipe (28) is arranged on the top of the protective plate (26), the air cooling pipe (28) is connected to a cooling fan, the welding head (25) is used to weld the heat sink (3) to the motor housing, the camera (27) is used to monitor the welding screen, the air cooling pipe (28) is used to air cool the welding point, and the temperature sensor (29) is used to detect the temperature of the weld after welding; The auxiliary support assembly (16) comprises two groups of mobile frames (161), the mobile frames (161) are slidably connected to the bracket (11), a fastening bolt (1) is arranged above the connection between the bracket (11) and the mobile frame (161), a roller (162) is connected to the side bearing of the mobile frame (161), the bottom of the roller (162) contacts the top of the bracket (11), and a limiting plate (163) is fixedly connected to the left side of the mobile frame (161). The limiting plate (163) is provided with two groups of limiting sliding grooves, and a rotating frame (164) is provided on the side of the limiting plate (163). The rotating frame (164) is fixed to the side of the limiting plate (163) by two groups of fixing bolts. A telescopic rod (165) is slidably connected in the rotating frame (164), and two fastening bolts are threadedly connected on the rotating frame (164). Two rollers (166) are respectively connected to the two groups of telescopic rods (165) on the adjacent sides thereof. The driving part (22) comprises a moving frame (221), the moving frame (221) is slidably connected to the moving track (21), and a motor (223) is fixedly connected to the side of the moving frame (221); The intelligent welding system comprises a collection module, an analysis module, a control module and an alarm module, wherein the collection module is used to monitor the welding condition of the heat sink (3) and the temperature of the weld, the analysis module is used to make judgments and analyses based on the temperature of the heat sink (3) and the weld, and the control module is used to control and adjust the angle between the drive frame (12) and the bracket (11), the rotation speed of the motor housing on the electric chuck (13) and the moving speed of the mechanical arm (24); The working method of the intelligent motor housing welding workstation is: Step 1: Install the motor housing to be welded, set the rotation speed of the motor housing during welding, adjust the motor housing to be parallel to the bracket (11), and manually adjust the support position and height of the auxiliary support assembly (16) according to the size of the motor housing; Step 2: Welding the heat sink (3) and inspecting the welding condition; The specific contents of step 2 are as follows: Step 2-1: spot welding the ends of the first group of heat sinks (3), and performing image recognition and analysis and judgment; Step 2-2: After continuously welding the first set of heat sinks (3), image recognition and analysis are performed; Step 2-3: After spot welding the second set of heat sinks (3), image recognition and analysis are performed; Step 2-4: After continuously welding the second set of heat sinks (3), image recognition and analysis are performed; Step 2-5: Repeat steps 2-3 and 2-4 until the last set of heat sinks (3) are welded. The specific operation steps of step 2-1 are as follows: clamping the heat sink (3) to the position just above the motor housing, the control module controls the motor 3 (223) to start and drive the mechanical arm (24) to move to a position corresponding to the welding starting point, then controls the mechanical arm (24) to drive the welding head (25) to descend, and spot welds the starting point of the heat sink (3), then the control module controls the motor 3 (223) to restart and drive the mechanical arm (24) to move to a position corresponding to the welding end point, then controls the mechanical arm (24) to drive the welding head (25) to descend, and spot welds the end point of the heat sink (3), and the acquisition module acquires the picture taken by the camera (27) and performs picture recognition; When the first group of heat sinks (3) are fixed by spot welding, the image recognition content includes the motor housing contour (4), the vertical projection contour (31) of the heat sink (3) on the motor housing, the center line (33) of the vertical projection contour (31), the maximum vertical spacing (1) and the minimum vertical spacing (1) between the center line (33) and the bottom of the motor housing contour (4), and the maximum vertical spacing (1) is recorded as D 1max , the minimum spacing is recorded as D 1min , and a horizontal distance 2 between the right side of the vertical projection profile 1 (31) and the right side of the motor housing profile (4), the distance 2 being denoted as L; The analysis module is provided with a standard spacing range 1 between the center line 1 (33) and the bottom of the motor housing profile (4), and the standard spacing range 1 is D 11 -D 12 , D 11 The minimum spacing allowed in the standard spacing range, D 12 is the maximum spacing allowed in the standard spacing range 1; and a spacing range 2 is provided between the right side of the standard vertical projection profile 1 (31) and the right side of the motor housing profile (4), the standard spacing range 2 is L1-L2, L1 is the minimum spacing allowed in the standard spacing range 2, and L2 is the maximum spacing allowed in the standard spacing range 2; When L1≤L≤L2, D 11 ≤D 1max , D 1min ≤D 12 When the horizontal spacing is 1 and the maximum spacing and minimum spacing in the vertical direction are normal, the subsequent steps can be carried out, L = 0.5 (L1 + L2), D 1max =D 1min It is the best ideal state; In D 1max <D 11 , D 1min >D 12 When the vertical spacing is abnormal, if D 1max -D 1min ≤D 12 -D 11 , the center line (33) is straight, and the feedback is sent to the alarm module. After the staff removes the heat sink (3), the rotation angle of the motor (14) is adjusted. 1max <D 11 When the rotation angle increases, D 1min >D 12 , reduce the rotation angle; if D 1max -D 1min >D 12 -D 11 , the center line (33) is tilted, and the rotation of the motor (14) is affected during the spot welding process. The staff inspects the motor (14); When L<L1 or L>L2, the horizontal spacing is abnormal and is fed back to the alarm module; when L<L1, the control moves in a direction away from the electric chuck (13), and the moving distance is L1-L; when L>L2, the control moves in a direction close to the electric chuck (13), and the moving distance is L-L2.

2. The intelligent motor housing welding workstation according to claim 1 is characterized in that: The driving frame (12) is arranged on the top of the bracket (11), the auxiliary support assembly (16) is slidably connected to the bracket (11), a motor 2 (15) is fixedly connected to the left side of the bracket (11), the motor 2 (15) is connected to a rotating shaft 1 by a worm gear transmission, the rotating shaft 1 is connected to a bearing of the bracket (11), the rotating shaft 1 is fixedly connected to the driving frame (12), a motor 1 (14) is fixedly connected to the rear side of the driving frame (12), the motor 1 (14) drives the electric chuck (13) to rotate by a gear transmission, and a control panel (17) is arranged on the right side of the driving frame (12), and a power switch, a speed regulating knob and an angle adjusting knob are arranged on the control panel (17).

3. The intelligent motor housing welding workstation according to claim 2 is characterized in that: The movable track (21) is arranged on the left side of the workbench (1); the driving unit (22) is arranged on the movable track (21); the fine-adjustment component (23) and the mechanical arm (24) are arranged on the driving unit (22); the driving unit (22) is used to drive the mechanical arm (24) to slide on the movable track (21); the fine-adjustment component (23) is used to fine-adjust the position of the mechanical arm (24) on the driving unit (22); the motor three (223) is connected to the movable track (21) by a gear rack transmission mode; the movable frame one (221) is slidably connected with the movable frame two (222); and the mechanical arm (24) is fixed to the top of the movable frame two (222).

4. The intelligent motor housing welding workstation according to claim 3 is characterized in that: The fine adjustment component (23) comprises a fixed block (231), the fixed block (231) is fixed to the side of the second moving frame (222), a handle (232) is connected to the bearing on the fixed block (231), and the handle (232) is connected to the first moving frame (221) by a gear rack transmission.

5. The intelligent motor housing welding workstation according to claim 4 is characterized in that: The acquisition module is electrically connected to the camera (27) and the temperature sensor (29), and the analysis module is provided with a weld temperature limit value, denoted as T 限 The control module is electrically connected to the motor 1 (14), the motor 2 (15), the motor 3 (223), the robot arm (24) and the welding head (25).

6. The intelligent motor housing welding workstation according to claim 5 is characterized in that: The specific operation steps of step 2-2 are as follows: loosen the spot-welded heat sink (3), control the motor 3 (223) to start, control the mechanical arm (24) and the welding head (25) on the mechanical arm (24) to operate, connect and weld the first group of spot-welded heat sinks (3), and after welding, use the acquisition module to capture the image with the camera (27) and perform image recognition, and the acquisition module also captures the highest temperature T of the weld; When continuously welding the first group of heat sinks (3), the image recognition content includes the motor housing contour (4), the continuous welding contour one (32), the center line two (34) of the continuous welding contour one (32), the maximum vertical spacing three and the minimum vertical spacing three between the center line two (34) and the bottom of the motor housing contour (4), and the maximum vertical spacing three is recorded as D 3max , the minimum spacing is denoted as D 3min .

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