Plasma arc welding equipment for machining motor box

Abstract

The invention relates to the technical field of motor box machining, in particular to plasma arc welding equipment for motor box machining, which comprises a box machining worktable, a transmission motor is mounted on the box machining worktable, a first gear is fixed to the output end of the transmission motor, and a fluted disc is meshed with the outer wall of the first gear. And a rotating frame is fixed on the inner wall of the fluted disc. According to the plasma arc welding equipment for machining the motor box body, after the upper cover plate and the lower part of the box body are aligned, welding of the seam of the upper part and the lower part of the box body can be completed only by starting the plasma arc welding device and the transmission motor at the same time; and the plasma arc welding device slides and stretches out and draws back along the inner wall of the second sliding block in a self-adaptive mode along with movement of the first guide rod so as to adapt to continuously-changing weld joint contours, and the problem that the welding position is prone to being inaccurate due to the fact that the position of the box body needs to be continuously adjusted traditionally is solved.

Description

Technical Field

[0001] The invention relates to the technical field of motor case processing, in particular to plasma arc welding equipment for motor case processing. Background Art

[0002] The motor case can assemble the electrical components, electronic components and mechanical components inside the motor together. Its main function is to protect the components inside the motor and prevent the damage and influence of external factors such as dust, moisture and electromagnetic interference on the motor. At the same time, it can also improve the heat dissipation performance and protection level of the motor and ensure the safety and stability of the motor. During the processing of the motor case, the case usually needs to be welded to the horizontal seams and some vertical seams of the metal plates to strengthen the firmness of the motor case.

[0003] However, the existing motor case welding devices on the market usually need to continuously adjust the direction of the case in order to weld the arc area of ​​the motor case during the case welding process, and need to continuously adjust the direction of the case in order to weld the horizontal and vertical seams of the case. In the process of continuously adjusting the position of the motor case, the welding position accuracy is prone to decrease. Therefore, a device that can automatically weld the horizontal and vertical seams of the motor case is needed. Summary of the invention

[0004] The present invention provides a plasma arc welding device for motor case processing, which has the beneficial effect of adaptively and automatically continuously adapting to uniform welding of the horizontal and vertical seams of the case, and solves the problem mentioned in the above background technology that the direction of the case needs to be constantly adjusted to weld the arc area of ​​the motor case, and the direction of the case needs to be constantly adjusted to weld the horizontal and vertical seams of the case, and the welding position accuracy is prone to decrease in the process of constantly adjusting the position of the motor case. In order to achieve the above purpose, the present invention provides the following technical solutions: a plasma arc welding device for motor case processing, comprising a case processing workbench, a transmission motor is installed on the case processing workbench, a first gear is fixed to the output end of the transmission motor, the outer wall of the first gear is meshed with a toothed disk, a rotating frame is fixed to the inner wall of the toothed disk, a circular groove is opened on the case processing workbench, and the rotating frame is rotatably set on the inner wall of the circular groove;

[0005] The rotating frame is provided with a fixed frame, the fixed frame is provided with a first slider, the outer wall of the first slider is provided with a first slide groove, the inner wall of the first slide groove is rotatably provided with a rolling ball, the outer wall of the rolling ball is fixed with a second slider, the inner wall of the second slider is slidably provided with a plasma arc welder, and the outer wall of the plasma arc welder is fixed with a first guide rod for guiding the movement of the plasma arc welder;

[0006] A fixing frame is fixed on the outer wall of the box body processing workbench, a supporting plate is fixed on the outer wall of the fixing frame, and a track groove for guiding the first guide rod is opened on the supporting plate.

[0007] As an optional solution of the plasma arc welding equipment for motor case processing described in the present invention, an annular groove is opened on the inner wall of the case processing workbench, a torsion spring is fixed to the inner wall of the annular groove, a rotating ring is fixed to the other end of the torsion spring, and the outer wall of the rotating ring is fixed to the outer wall of the fixed frame.

[0008] As an optional solution of the plasma arc welding equipment for motor case processing described in the present invention, a guide rod is fixed to the inner wall of the fixed frame, the first slider is slidably mounted on the outer wall of the guide rod, a first spring is fixed to the outer wall of the first slider, and one end of the first spring is fixed to the inner wall of the fixed frame.

[0009] As an optional solution of the plasma arc welding equipment for motor housing processing described in the present invention, two second springs are fixed to the inner wall of the first slide groove, and the two second springs are fixed to the outer wall of the second sliding block.

[0010] As an optional solution of the plasma arc welding equipment for motor housing processing described in the present invention, the second slider is configured as a prism, and the outer contour of the second slider matches the inner contour of the first slide groove.

[0011] As an optional solution of the plasma arc welding equipment for motor housing processing described in the present invention, the inner wall of the trajectory groove is provided with a plurality of evenly distributed protrusions, and the protrusions are arranged in a hemispherical shape.

[0012] As an optional solution of the plasma arc welding equipment for motor case processing described in the present invention, the inner wall of the trajectory groove is also provided with two through grooves, the through grooves penetrate the support plate, the outer wall of the support plate is fixed with a second guide rod, the outer wall of the second guide rod is sleeved with a third spring, one end of the third spring is fixed to the outer wall of the second guide rod, the other end of the third spring is fixed with a third slider, the third slider is slidably arranged on the outer wall of the second guide rod, the outer wall of the third slider is fixed with a resistance rod, and the resistance rod slides on the inner wall of the through groove.

[0013] As an optional solution of the plasma arc welding equipment for machining a motor housing according to the present invention, a third guide rod is fixed to the outer wall of the third sliding block, and the end of the third guide rod is set to be hemispherical;

[0014] A resisting block for resisting the third guide rod is fixed on the rotating frame, and a resisting inclined surface is provided on the resisting block.

[0015] As an optional solution of the plasma arc welding equipment for motor housing processing described in the present invention, a second electric telescopic rod is installed on the outer wall of the support plate, and a pressure plate for limiting the position of the housing body is fixed to the output end of the second electric telescopic rod.

[0016] As an optional solution of the plasma arc welding equipment for motor case processing described in the present invention, an output motor is installed on the outer wall of the case processing workbench, a rotating plate is fixed on the output end of the output motor, a first electric telescopic rod is installed on the outer wall of the rotating plate, and a suction cup for moving the position of the case body is fixed on the output end of the first electric telescopic rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, after the upper cover plate and the lower part of the box body are aligned, it is only necessary to start the plasma arc welder and the transmission motor at the same time to complete the welding of the joints of the upper and lower parts of the box body. The plasma arc welder follows the movement of the first guide rod and adaptively slides and retracts along the inner wall of the second slider, thereby adapting to the constantly changing weld profile, reducing the problem of inaccurate welding position caused by the need to constantly adjust the position of the box body in the traditional sense.

[0019] In the present invention, during the process of circumferential welding of the upper and lower welds of the box body, the output end of the plasma arc welder can be placed in an up and down swinging state, so that the weld can be changed from a straight line to a curve, thereby increasing the weld length and making the welding more uniform, further increasing the mechanical properties and fatigue resistance of the weld.

[0020] In the present invention, during the process of welding the transverse seams of the upper and lower parts of the box body, the vertical seams that need to be welded will also be automatically adapted and welded. Without adjusting the position of the box body, all the transverse and vertical seams that need to be welded of the box body can be evenly welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of a top cross-sectional structure of the present invention;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure;

[0024] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0025] Figure 5It is a schematic diagram of the cross-sectional structure of the rotating frame and its surroundings of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0027] Figure 7 It is a partial bottom view structural schematic diagram of the present invention;

[0028] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure;

[0029] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at C in the middle;

[0030] Fig.10 It is a structural schematic diagram of the rotating frame cross section of the present invention.

[0031] 1. Box body processing workbench; 101. circular groove; 2. output motor; 201. rotating plate; 3. first electric telescopic rod; 4. suction cup; 5. transmission motor; 6. first gear; 7. toothed disc; 8. rotating frame; 9. box body; 10. second electric telescopic rod; 11. pressure plate; 12. fixing frame; 13. support plate; 14. track groove; 141. protrusion; 15. through groove; 16. annular groove; 17. torsion spring; 18. rotating ring; 19. fixing frame; 20. guide rod; 21. first spring; 22. first slider; 23. first slide groove; 24. second spring; 25. second slider; 26. plasma arc welder; 28. first guide rod; 31. resistance block; 32. resistance inclined surface; 33. second guide rod; 34. third spring; 35. third slider; 36. third guide rod; 37. resistance rod; 39. rolling ball. DETAILED DESCRIPTION

[0032] 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.

[0033] For example, see Figure 1-Figure 10 A plasma arc welding device for motor case processing includes a case processing workbench 1, a transmission motor 5 is installed on the case processing workbench 1, a first gear 6 is fixed to the output end of the transmission motor 5, a toothed disc 7 is meshed on the outer wall of the first gear 6, a rotating frame 8 is fixed to the inner wall of the toothed disc 7, a circular groove 101 is opened on the case processing workbench 1, and the rotating frame 8 is rotatably arranged on the inner wall of the circular groove 101;

[0034] A fixed frame 19 is arranged on the rotating frame 8, a first slider 22 is arranged on the fixed frame 19, a first slide groove 23 is opened on the outer wall of the first slider 22, a rolling ball 39 is rotatably arranged on the inner wall of the first slide groove 23, a second slider 25 is fixed on the outer wall of the rolling ball 39, a plasma arc welder 26 is slidably arranged on the inner wall of the second slider 25, and a first guide rod 28 for guiding the movement of the plasma arc welder 26 is fixed on the outer wall of the plasma arc welder 26;

[0035] A fixing frame 12 is fixed to the outer wall of the box body processing workbench 1, and a supporting plate 13 is fixed to the outer wall of the fixing frame 12. A track groove 14 for guiding the first guide rod 28 is opened on the supporting plate 13;

[0036] A second electric telescopic rod 10 is installed on the outer wall of the support plate 13, and a pressing plate 11 for limiting the position of the box body 9 is fixed to the output end of the second electric telescopic rod 10;

[0037] An output motor 2 is installed on the outer wall of the box processing workbench 1, a rotating plate 201 is fixed to the output end of the output motor 2, a first electric telescopic rod 3 is installed on the outer wall of the rotating plate 201, and a suction cup 4 for moving the position of the box body 9 is fixed to the output end of the first electric telescopic rod 3.

[0038] In the process of using the welding device, firstly, the lower part of the box body 9 is Figure 2 As shown, the housing 10 is placed on the support plate 13, and then the output motor 2 is started, and the rotating plate 201 at the output end is rotated by the rotation of the output motor 2, and the circumferential rotation of the rotating plate 201 moves the suction cup 4 to the upper cover of the box body 9, and then the first electric telescopic rod 3 is started to press the suction cup 4 on the cover of the box body 9, and then the cover of the box body 9 is pressed on the box body 9 to align by controlling the output motor 2;

[0039] It should be noted that the suction force of the suction cup 4 is much greater than the weight of the cover of the box body 9, so the cover of the box body 9 can be easily sucked up.

[0040] Then, the second electric telescopic rods 10 on both sides are started, and the second electric telescopic rods 10 clamp the box body 9 with the pressure plate 11 at the output end, and the suction cup 4 is pressed on the surface of the upper cover of the box body 9 by starting the first electric telescopic rod 3, so that the upper cover is always in a state of being close to the box body 9, as shown in the attached figure. Figure 1 as shown in .

[0041] At this time, the preparation work is completed, and the transmission motor 5 can be started to cause the output end of the transmission motor 5 to rotate with the first gear 6. When the first gear 6 rotates, it will continuously engage the toothed disc 7, causing the toothed disc 7 to rotate synchronously. During the rotation of the toothed disc 7, the rotating frame 8 of the inner wall will rotate synchronously. During the rotation of the rotating frame 8, the plasma arc welder 26 will move synchronously. When the plasma arc welder 26 moves in a circle, it will move synchronously with the first guide rod 28, causing the first guide rod 28 to start sliding along the track groove 14. The movement of the first guide rod 28 is guided by the track of the track groove 14. It should be noted that the track of the track groove 14 matches the outer contour of the box body 9.

[0042] As attached Figure 3 As shown, therefore, the first guide rod 28, while being guided by the trajectory groove 14, will prompt the plasma arc welder 26 to accurately move along the seam between the lower part and the upper cover part of the box body 9. In this process, the plasma arc welder 26 is started to move and weld the seam between the upper cover and the lower part of the box body 9. Since the trajectory of the trajectory groove 14 matches the outer contour trajectory of the box body 9, as the plasma arc welder 26 moves at a uniform speed, the plasma arc welder 26 follows the movement of the first guide rod 28 and adaptively slides and retracts along the inner wall of the second slider 25, thereby adapting to the constantly changing weld contour, and accurately welding the upper cover and the lower part of the box body 9 can be achieved without constantly adjusting the orientation of the box body 9 so that it always faces the welding head direction of the plasma arc welder 26, thereby increasing the position accuracy of the welding.

[0043] In this embodiment: after aligning the upper cover plate and the lower part of the box body 9, it is only necessary to start the plasma arc welder 26 and the transmission motor 5 at the same time to complete the welding of the joints of the upper and lower parts of the box body 9. The plasma arc welder 26 follows the movement of the first guide rod 28 and adaptively slides and retracts along the inner wall of the second slider 25, thereby adapting to the constantly changing weld profile, reducing the problem of inaccurate welding position caused by the need to constantly adjust the position of the box body 9 in the traditional sense.

[0044] Example 2: This example is intended to help solve the problem. Please refer to Figure 1-Figure 10 A plasma arc welding device for motor housing processing, wherein an annular groove 16 is provided on the inner wall of the housing processing workbench 1, a torsion spring 17 is fixed to the inner wall of the annular groove 16, a rotating ring 18 is fixed to the other end of the torsion spring 17, and the outer wall of the rotating ring 18 is fixed to the outer wall of the fixed frame 19;

[0045] A guide rod 20 is fixed to the inner wall of the fixed frame 19, a first slider 22 is slidably sleeved on the outer wall of the guide rod 20, a first spring 21 is fixed to the outer wall of the first slider 22, and one end of the first spring 21 is fixed to the inner wall of the fixed frame 19;

[0046] Two second springs 24 are fixed to the inner wall of the first sliding groove 23, and the two second springs 24 are fixed to the outer wall of the second sliding block 25;

[0047] The second slider 25 is configured as a prism, and the outer contour of the second slider 25 matches the inner contour of the first slide groove 23;

[0048] The inner wall of the track groove 14 is provided with a plurality of evenly distributed protrusions 141 , and the protrusions 141 are arranged in a hemispherical shape.

[0049] In the process of welding the upper and lower parts of the box body 9, as the first guide rod 28 continuously moves along the track groove 14, the end of the first guide rod 28 will collide with the surface of a plurality of evenly distributed protrusions 141 arranged on the inner wall of the track groove 14. Since the protrusions 141 are arranged in a hemispherical shape, when the first guide rod 28 moves through the surface of the hemispherical protrusions 141, it will move along the spherical surface of the protrusions 141, causing the first guide rod 28 to be pushed upward with the plasma arc welder 26, and the plasma arc welder 26 is pushed upward and moves synchronously with the second slider 25, thereby causing the second slider 25 to deflect upward with the rolling ball 39 along the rotating connection of the rolling ball 39;

[0050] Since the second slider 25 is a prism and the outer contour of the second slider 25 matches the inner contour of the first slide groove 23, the second slider 25 can only deflect along the up and down direction with the ball 39, that is, at this time, the output end of the plasma arc welder 26 deflects upward, and the second spring 24 at the upper end is compressed during the deflection process, and the second spring 24 at the lower end is stretched synchronously, so as to facilitate subsequent resetting. After the first guide rod 28 moves through a single protrusion 141, the resistance force is lost at this time, and the second spring 24 rebounds and resets with the second slider 25. In this process, the output end of the plasma arc welder 26 realizes a process of deflecting upward by a small angle and then resetting. When passing through a plurality of evenly distributed protrusions 141, it is possible to achieve welding along the outer wall of the box body 9 while swinging upward and resetting during the welding process, and to weld the welds of the upper and lower parts of the box body 9. The welding path is a curve with multiple bends, so that the welding is not only more uniform, but also more uniform than straight line welding, further increasing the mechanical properties and fatigue resistance of the weld.

[0051] In this embodiment: by starting the transmission motor 5, during the process of circumferential welding of the upper and lower welds of the box body 9, the output end of the plasma arc welder 26 can be in an up and down swinging state, so that the weld can be changed from a straight line to a curve, thereby increasing the weld length and making the welding more uniform, further increasing the mechanical properties and fatigue resistance of the weld.

[0052] Embodiment 3: This embodiment is intended to facilitate solving the following problems: Figure 2-3As shown in , the right-angled corners of the box body 9 are forged from a whole plate, so there are also butt joints that need to be welded. This butt joint is different from the horizontal welds of the upper and lower parts of the box body 9 in the first embodiment, and belongs to the vertical weld. How to automatically weld the horizontal and vertical welds without moving the box body 9, please refer to Figure 1-Figure 10 A plasma arc welding device for machining a motor housing, wherein the inner wall of the track groove 14 is further provided with two through grooves 15, the through grooves 15 penetrate the support plate 13, the outer wall of the support plate 13 is fixed with a second guide rod 33, the outer wall of the second guide rod 33 is sleeved with a third spring 34, one end of the third spring 34 is fixed with the outer wall of the second guide rod 33, the other end of the third spring 34 is fixed with a third slider 35, the third slider 35 is slidably arranged on the outer wall of the second guide rod 33, the outer wall of the third slider 35 is fixed with a resisting rod 37, the resisting rod 37 slides on the inner wall of the through groove 15;

[0053] A third guide rod 36 is fixed to the outer wall of the third sliding block 35, and the end of the third guide rod 36 is set to be hemispherical;

[0054] A resisting block 31 for resisting the third guide rod 36 is fixed on the rotating frame 8 , and a resisting inclined surface 32 is formed on the resisting block 31 .

[0055] When the first guide rod 28 moves along the track groove 14, when the first guide rod 28 moves to the right-angle turn of the track groove 14, a through groove 15 penetrating the support plate 13 is opened at each right-angle turn, and each time the first guide rod 28 passes through this place, it will fall into the through groove 15, and as shown in the attached Figure 5 As shown in , the first spring 21 is in a state of upward stretching and tension before the first guide rod 28 enters the through slot 15. Therefore, after the first guide rod 28 enters the through slot 15, the resilience of the first spring 21 will prompt the first slider 22 to be pulled down, and the first slider 22 will move downward along the outer wall of the guide rod 20 with the plasma arc welder 26 and the first guide rod 28, prompting the first guide rod 28 to slide down along the through slot 15. During the sliding process, the resistance rod 37 originally in the through slot 15 will be pressed down, prompting the resistance rod 37 to press down the third slider 35, so that the third slider 35 is forced to slide down along the second guide rod 33. During the sliding process, the third spring 34 is compressed to facilitate subsequent resetting. It should be noted that the resetting elastic force of the first spring 21 is much greater than the elastic force of the third spring 34. Therefore, at this time, the downward movement of the first guide rod 28 will move the plasma arc welder 26 down to the bottom of the right-angle turn of the box body 9;

[0056] At this time, the plasma arc welder 26 is started, and then the output motor 2 is started to continue to rotate with the rotating frame 8. As the rotating frame 8 continues to rotate, the first guide rod 28 is in the through slot 15 and cannot rotate with it. Therefore, at this time, the plasma arc welder 26, the first slider 22, the fixed frame 19 and the rotating ring 18 are all in a stationary state, and the rotating frame 8 rotates with the torsion spring 17, which causes the torsion spring 17 to be twisted to adapt to the rotation;

[0057] As attached Figure 8 As shown in the figure, the continued rotation of the rotating frame 8 will cause the resistance block 31 to move synchronously, and the movement of the resistance block 31 will cause the resistance inclined surface 32 to resist the third guide rod 36 on the outer wall of the third slider 35. As the resistance block 31 continues to move, the third guide rod 36 will cause the third slider 35 to be pushed upward along the second guide rod 33. At this time, the upward movement of the third slider 35 will cause the resistance rod 37 to be re-inserted into the through groove 15. In this process, the first guide rod 28 will be pushed upward out of the through groove 15 at a uniform speed. At this time, the first guide rod 28 will move upward at a uniform speed with the plasma arc welder 26, and the plasma arc will be started at this time. The welder 26 can weld the right-angled seam of the lower part of the box body 9 that it passes through. When the abutment block 31 continues to slide until the third guide rod 36 completely passes through the abutment inclined surface 32, the third guide rod 36 is at the upper surface of the abutment block 31. At this time, the first guide rod 28 is also completely separated from the through groove 15. At this time, as the rotating frame 8 continues to rotate, the third guide rod 36 is separated from the contact with the abutment block 31. At this time, the rotation of the rotating frame 8 also moves the first guide rod 28 through the through groove 15 and continues to move forward, prompting the plasma arc welder 26 to continue welding the transverse seams of the upper and lower parts of the box body 9.

[0058] In this embodiment: during the process of welding the transverse seams of the upper and lower parts of the box body 9, the vertical seams that need to be welded will also be automatically adapted and welded. Without adjusting the position of the box body 9, all the transverse and vertical seams that need to be welded of the box body 9 are further welded evenly.

[0059] 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.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A plasma arc welding device for motor housing processing, comprising a housing processing workbench (1), characterized in that: A transmission motor (5) is installed on the box body processing workbench (1), a first gear (6) is fixed to the output end of the transmission motor (5), a toothed disc (7) is meshed on the outer wall of the first gear (6), a rotating frame (8) is fixed on the inner wall of the toothed disc (7), a circular groove (101) is opened on the box body processing workbench (1), and the rotating frame (8) is rotatably arranged on the inner wall of the circular groove (101); The rotating frame (8) is provided with a fixed frame (19), the fixed frame (19) is provided with a first slider (22), the outer wall of the first slider (22) is provided with a first slide groove (23), the inner wall of the first slide groove (23) is rotatably provided with a rolling ball (39), the outer wall of the rolling ball (39) is fixed with a second slider (25), the inner wall of the second slider (25) is slidably provided with a plasma arc welder (26), and the outer wall of the plasma arc welder (26) is fixed with a first guide rod (28) for guiding the movement of the plasma arc welder (26); A fixing frame (12) is fixed to the outer wall of the box body processing workbench (1), a supporting plate (13) is fixed to the outer wall of the fixing frame (12), and a track groove (14) for guiding the first guide rod (28) is provided on the supporting plate (13).

2. The plasma arc welding equipment for motor housing processing according to claim 1, characterized in that: The inner wall of the box processing workbench (1) is provided with an annular groove (16), a torsion spring (17) is fixed to the inner wall of the annular groove (16), a rotating ring (18) is fixed to the other end of the torsion spring (17), and the outer wall of the rotating ring (18) is fixed to the outer wall of the fixed frame (19).

3. The plasma arc welding equipment for motor housing processing according to claim 1 is characterized in that: A guide rod (20) is fixed to the inner wall of the fixed frame (19); the first sliding block (22) is slidably sleeved on the outer wall of the guide rod (20); a first spring (21) is fixed to the outer wall of the first sliding block (22); one end of the first spring (21) is fixed to the inner wall of the fixed frame (19).

4. The plasma arc welding equipment for motor housing processing according to claim 1, characterized in that: Two second springs (24) are fixed to the inner wall of the first sliding groove (23), and the two second springs (24) are both fixed to the outer wall of the second sliding block (25).

5. The plasma arc welding equipment for motor case processing according to claim 1, characterized in that: The second sliding block (25) is configured as a prism, and the outer contour of the second sliding block (25) matches the inner contour of the first sliding groove (23).

6. The plasma arc welding equipment for motor case processing according to claim 1, characterized in that: The inner wall of the track groove (14) is provided with a plurality of evenly distributed protrusions (141), and the protrusions (141) are arranged in a hemispherical shape.

7. The plasma arc welding equipment for motor case processing according to claim 1 is characterized in that: The inner wall of the track groove (14) is also provided with two through grooves (15), the through grooves (15) penetrate the support plate (13), the outer wall of the support plate (13) is fixed with a second guide rod (33), the outer wall of the second guide rod (33) is sleeved with a third spring (34), one end of the third spring (34) is fixed to the outer wall of the second guide rod (33), the other end of the third spring (34) is fixed with a third slider (35), the third slider (35) is slidably arranged on the outer wall of the second guide rod (33), the outer wall of the third slider (35) is fixed with a resisting rod (37), and the resisting rod (37) slides on the inner wall of the through groove (15).

8. The plasma arc welding equipment for motor housing processing according to claim 7, characterized in that: A third guide rod (36) is fixed to the outer wall of the third sliding block (35), and the end of the third guide rod (36) is arranged in a hemispherical shape; A resisting block (31) for resisting against a third guide rod (36) is fixed on the rotating frame (8), and a resisting inclined surface (32) is provided on the resisting block (31).

9. The plasma arc welding equipment for motor case processing according to claim 1, characterized in that: A second electric telescopic rod (10) is installed on the outer wall of the support plate (13), and a pressure plate (11) for limiting the position of the box body (9) is fixed to the output end of the second electric telescopic rod (10).

10. The plasma arc welding equipment for motor housing processing according to claim 9, characterized in that: An output motor (2) is mounted on the outer wall of the box processing workbench (1); a rotating plate (201) is fixed to the output end of the output motor (2); a first electric telescopic rod (3) is mounted on the outer wall of the rotating plate (201); a suction cup (4) for moving the position of the box body (9) is fixed to the output end of the first electric telescopic rod (3).

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