Laser welding device for sensor shell

Abstract

The invention discloses a laser welding device for a sensor shell, and relates to the technical field of sensor shell welding, the laser welding device comprises a control device, a supporting plate is fixedly mounted on the surface of the control device, supporting legs are fixedly mounted at the bottom of the supporting plate, and a laser welding device body is arranged on the surface of the supporting plate; the operation table is fixedly installed at the top of the supporting plate, a plurality of positioning holes are formed in the surface of the operation table, a groove is formed in the top of the operation table, the inflator pump is fixedly installed at the bottom of the inner wall of the groove, two air outlet holes are formed in the surface of the inflator pump, and the piston is slidably installed on the inner wall of the inflator pump. And a sealing ring is arranged on the circumferential surface of the piston, so that the speed of the piston moving towards the bottom is gradually reduced, the situation that part of workpieces are too heavy due to different materials of the workpieces is prevented, the preparation time during machining is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sensor housing welding, in particular to a laser welding device for a sensor housing. Background Art

[0002] The laser welding device of the sensor housing is mainly used for high-precision and high-quality welding processes, usually involving the welding of sensor housing materials, such as the welding of metal housings, to ensure their strength, sealing and electronic performance.

[0003] The patent with patent announcement number CN214443865U relates to a laser welding machine lifting device for a temperature sensor, including a box body, the four corners of the bottom of the box body are fixedly connected to a base, the top of the box body is provided with a laser welding machine, the inner wall of the box body is provided with a height adjustment mechanism, the outer walls of the two first vertical plates are gap-matched with the second vertical plates, the two second vertical plates are respectively fixed to the left and right sides of the bottom of the inner wall of the box body, the left and right sides of the inner wall of the second vertical plate are processed with through grooves, the inner walls of the two through grooves are gap-matched with the outer wall of the rod body, this patent still requires the laser welding machine to be adjusted in height so as to facilitate docking with the external temperature sensor assembly line at different heights. The horizontal plate can drive the curved rod and the pointer to rise, and then the height of the laser welding machine and the horizontal plate can be accurately adjusted to meet the work requirements through the numerical indication of the pointer at the scale.

[0004] In the above patent, the height of the laser welding machine and the cross plate can be accurately adjusted to meet the work requirements through the numerical indication of the pointer on the scale. However, when the workpiece is welded, the weight of the workpiece of different materials is different, which makes it difficult to place some workpieces on the operating table, which affects the processing and work efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a laser welding device for a sensor housing, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A laser welding device for a sensor housing, comprising a control device, a support plate is fixedly installed on the surface of the control device, a support leg is fixedly installed on the bottom of the support plate, a laser welding device body is arranged on the surface of the support plate, the laser welding device body is electrically connected to the control device, and a placement device is arranged on the top of the support plate;

[0007] The placing device comprises: an operating table, an inflatable cylinder, a piston, a transmission vertical rod, a sealing plate, a sliding plate and a triangular pad, wherein the operating table is fixedly mounted on the top of the supporting plate, a sliding groove is provided on the surface of the operating table, a plurality of positioning holes are provided on the surface of the operating table, a groove is provided on the top of the operating table, the inflatable cylinder is fixedly mounted on the bottom of the inner wall of the groove, two air outlet holes are provided on the surface of the inflatable cylinder, the piston is slidably mounted on the inner wall of the inflatable cylinder, a sealing ring is provided on the circumferential surface of the piston, the transmission vertical rod is fixedly mounted on the top of the transmission vertical rod, the sliding plate is slidably mounted on the inner wall of the groove, the sliding plate is fixedly mounted on the top of the transmission vertical rod, the sealing plate is slidably mounted on the bottom of the sliding plate, and the triangular pad is fixedly mounted on the bottom of the inner wall of the groove, the sealing plate moves and contacts with the triangular pad, and the sealing plate is blocked by the triangular pad and moves in the direction away from the inflatable cylinder after moving to the bottom due to the inclined surface design on the top of the triangular pad, and the sealing plate no longer contacts with the inflatable hole after moving;

[0008] Wherein, a positioning device for positioning the workpiece and a clamping device for fixing the workpiece are arranged on the top of the support plate.

[0009] According to the above technical solution, a No. 1 spring is arranged between the piston and the inflation cylinder, the sealing plate is in contact with the triangular pad, and the No. 1 spring drives the piston to reset.

[0010] According to the above technical scheme, the positioning device includes: a long rod, a limiting arc rod, a sliding block, a square plate, a through rod, two triangular blocks, a circular column and a positioning block. The long rod is fixedly installed at the bottom of the sliding plate, the limiting arc rod is fixedly installed at the top of the long rod, the sliding block is slidably installed on the inner wall of the slide groove, the square plate is fixedly installed at one end of the sliding block, the circular column is fixedly installed at the other end of the sliding block, the through rod slides through the inner and outer walls of the square plate and the circular column of the sliding block, the two triangular blocks are fixedly installed at both ends of the through rod, and the positioning block is fixedly installed on the end of the circular column away from the sliding block. The movement of the sliding block will drive the movement of the circular column, the movement of the circular column will drive the movement of the positioning block, and the movement of the positioning block will contact the workpiece.

[0011] According to the above technical solution, the positioning device also includes: two arc-shaped clamping rods, a transmission bevel block and a reset rod. The two arc-shaped clamping rods are rotatably installed on the side of the square plate away from the sliding block. The transmission bevel block slides through the inner and outer walls of the square plate. The reset rod is fixedly installed on the top of the arc-shaped clamping rod. The rotation of the arc-shaped clamping rod will contact the transmission bevel block. The rotation of the arc-shaped clamping rod will drive the transmission bevel block to move in the direction of the limiting hole. After the transmission bevel block moves, it contacts the limiting hole and is limited by the limiting hole, so that the sliding block can no longer move further.

[0012] According to the above technical solution, a No. 1 torsion spring is arranged between the arc-shaped clamping rod and the square plate, the reset rod is in contact with the limiting hole, and the No. 1 torsion spring drives the arc-shaped clamping rod to reset.

[0013] According to the above technical solution, a No. 2 spring is arranged between the transmission bevel block and the square plate, and the arc-shaped clamping rod is in contact with the transmission bevel block, and the transmission bevel block is driven to reset by the No. 2 spring.

[0014] According to the above technical scheme, the clamping device includes: a transmission block, a push plate, a connecting plate, a transmission triangle, a clamping plate, an arc rod, a limiting tooth and a limiting round rod, the transmission block is slidably installed on the inner wall of the circular column, the transmission block is fixedly installed on the end of the through-rod away from the triangular block, the push plate is fixedly installed on the side of the transmission block away from the through-rod, the clamping plate slides through the inner and outer walls of the positioning block, the connecting plate is fixedly installed on the end of the clamping plate close to the push plate, the transmission triangle is fixedly installed on the side of the push plate close to the clamping plate, the arc rod is rotatably installed on the end of the clamping plate away from the connecting plate, the limiting tooth is fixedly installed on the circumferential surface of the arc rod, the limiting round rod slides through the inner and outer walls of the clamping plate and the arc rod, the limiting tooth rotates, and then the limiting round rod is put back, the limiting round rod will limit the limiting tooth, so that the contact angle between the arc rod and the workpiece can be adjusted.

[0015] According to the above technical solution, a No. 3 spring is arranged between the clamping plate and the positioning block, the limiting tooth is in contact with the limiting round rod, and the clamping plate is driven to reset by the No. 3 spring.

[0016] The present invention provides a laser welding device for a sensor housing, which has the following beneficial effects:

[0017] (1) The invention, when the sealing plate moves, will contact with the air outlet and block one of the air outlets, so that the speed of the piston when moving to the bottom is gradually reduced, thereby preventing some workpieces from being too heavy due to different materials, resulting in excessive effort when placing them, reducing the preparation time during processing, and improving work efficiency. After the sealing plate moves, it will no longer contact with the inflation hole, so that when the piston is reset by the No. 1 spring, the piston will not be unable to move to the top due to excessive suction due to the negative pressure inside the inflation cylinder, thereby improving the stability of the device when in use.

[0018] (2) In the present invention, the movement of the circular column drives the movement of the positioning block, which contacts the workpiece. When welding workpieces of different shapes, the device can freely adjust the positioning position of the workpiece, which is convenient for fixing the workpiece and improves the portability of the device. The rotation of the arc clamp rod drives the transmission bevel block to move in the direction of the limiting hole. After the transmission bevel block moves, it contacts the limiting hole and is limited by the limiting hole, so that the sliding block can no longer move. After the positioning is completed, the device can be quickly limited, further improving work efficiency.

[0019] (3) The invention, through the movement of the clamping plate, drives the arc rod to move toward the workpiece and contact with the workpiece, so as to clamp and fix the workpiece, and prevent the workpiece from being thermally deformed due to high temperature during welding, which causes the position of the workpiece to shift during welding and affects the welding of the workpiece, thereby improving the processing accuracy during welding. By rotating the limit teeth and then putting the limit round rod back, the limit round rod will limit the limit teeth, so that the contact angle between the arc rod and the workpiece can be adjusted, and the irregular shape of the special workpiece surface can be prevented from making it difficult to effectively fix the workpiece, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a schematic diagram of the internal structure of the operating table of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the operating table of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the inflator of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the positioning device of the present invention;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of a circular column of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the clamping device of the present invention;

[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of the splint of the present invention.

[0028] In the figure: 1. control device; 2. support plate; 3. support leg; 4. laser welding device body; 51. operating table; 52. inflator; 53. piston; 54. transmission vertical rod; 55. spring No. 1; 56. sealing plate; 57. sliding plate; 58. triangular pad; 61. long rod; 62. limit arc rod; 63. sliding block; 64. square plate; 65. through rod; 66. triangular block; 67. circular column; 68. positioning block; 69. arc clamping rod; 610. transmission oblique block; 611. reset rod; 71. transmission block; 72. push plate; 73. connecting plate; 74. transmission triangle; 75. clamping plate; 76. arc rod; 77. limit tooth; 78. limit round rod. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 - Figure 4 One embodiment of the present invention is: a laser welding device for a sensor housing, comprising a control device 1, a support plate 2 is fixedly mounted on the surface of the control device 1, a support leg 3 is fixedly mounted on the bottom of the support plate 2, a laser welding device body 4 is arranged on the surface of the support plate 2, the laser welding device body 4 is electrically connected to the control device 1, and a placement device is arranged on the top of the support plate 2;

[0031] The placing device includes: an operating table 51, an inflatable cylinder 52, a piston 53, a transmission vertical rod 54, a sealing plate 56, a sliding plate 57 and a triangular pad 58. The operating table 51 is fixedly installed on the top of the support plate 2. The surface of the operating table 51 is provided with a slide groove. The surface of the operating table 51 is provided with a plurality of positioning holes. The top of the operating table 51 is provided with a groove. The inflatable cylinder 52 is fixedly installed at the bottom of the inner wall of the groove. The surface of the inflatable cylinder 52 is provided with two air outlet holes. The piston 53 is slidably installed on the inner wall of the inflatable cylinder 52. The circumferential surface of the piston 53 is provided with a sealing ring. The transmission vertical rod 54 is fixedly installed on the top of the transmission vertical rod 54. The sliding plate 57 is slidably installed on the inner wall of the groove, the sliding plate 57 is fixedly installed on the top of the transmission vertical rod 54, and the sealing plate 56 is slidably installed on the bottom of the sliding plate 57 to prevent the workpieces from being too heavy due to different materials, which makes it too laborious to place them, reduces the preparation time during processing, and improves work efficiency. The triangular pad 58 is fixedly installed on the bottom of the inner wall of the groove, so that when the piston 53 is reset by the No. 1 spring 55, the piston 53 will not be unable to move to the top due to excessive suction due to the negative pressure inside the inflation cylinder 52, thereby improving the stability of the device when in use.

[0032] A No. 1 spring 55 is provided between the piston 53 and the inflation cylinder 52 , and the sealing plate 56 is in contact with the triangular pad 58 , and the No. 1 spring 55 drives the piston 53 to reset.

[0033] When the present embodiment is working, a workpiece is placed on the top of the sliding plate 57. The workpiece drives the sliding plate 57 to move toward the bottom due to its own weight. The movement of the sliding plate 57 drives the transmission vertical rod 54 to move toward the bottom. The movement of the transmission vertical rod 54 drives the piston 53 to move toward the bottom. The movement of the piston 53 squeezes the air inside the inflatable cylinder 52 to be discharged through the air outlet. The movement of the sliding plate 57 drives the sealing plate 56 to move toward the bottom. The movement of the sealing plate 56 contacts the air outlet and blocks one of the air outlets, so that the speed of the piston 53 when moving toward the bottom is gradually reduced, so as to prevent the workpiece from being too heavy due to different materials, which may cause the workpiece to be too heavy during operation. It is too laborious to place, which reduces the preparation time during processing and improves work efficiency. When the sealing plate 56 moves to the bottom, the sealing plate 56 moves and contacts with the triangular pad 58. Due to the inclined design on the top of the triangular pad 58, the sealing plate 56 is blocked by the triangular pad 58 after moving to the bottom and moves away from the inflation tube 52. After the sealing plate 56 moves, it no longer contacts with the inflation hole, so that when the piston 53 is reset by the No. 1 spring 55, the piston 53 will not be unable to move to the top due to excessive suction due to the negative pressure inside the inflation tube 52, thereby improving the stability of the device when in use.

[0034] See also Figure 1 - Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, a positioning device for positioning the workpiece and a clamping device for fixing the workpiece are provided on the top of the support plate 2, wherein the positioning device comprises: a long rod 61, a limiting arc rod 62, a sliding block 63, a square plate 64, a through rod 65, two triangular blocks 66, a circular column 67 and a positioning block 68, the long rod 61 is fixedly mounted on the bottom of the sliding plate 57, the limiting arc rod 62 is fixedly mounted on the top of the long rod 61, the sliding block 63 is slidably mounted on the inner wall of the slide groove, the square plate 64 is fixedly mounted on one end of the sliding block 63, the circular column 67 is fixedly mounted on the other end of the sliding block 63, the through rod 65 slides through the inner and outer walls of the square plate 64 and the circular column 67 of the sliding block 63, the two triangular blocks 66 are fixedly mounted on both ends of the through rod 65, and the positioning block 68 is fixedly mounted on the end of the circular column 67 away from the sliding block 63, so that when welding workpieces of different shapes, the device can freely adjust the position of positioning the workpiece, which is convenient for fixing the workpiece and improving the portability of the device.

[0035] The positioning device also includes: two arc-shaped clamping rods 69, a transmission bevel block 610 and a reset rod 611. The two arc-shaped clamping rods 69 are rotatably mounted on the side of the square plate 64 away from the sliding block 63. The transmission bevel block 610 slides through the inner and outer walls of the square plate 64. The reset rod 611 is fixedly mounted on the top of the arc-shaped clamping rod 69, so that the device can be quickly limited after positioning is completed, thereby further improving work efficiency.

[0036] A torsion spring No. 1 is arranged between the arc-shaped clamping rod 69 and the square plate 64 , and the reset rod 611 is in contact with the limiting hole, and the arc-shaped clamping rod 69 is reset by the torsion spring No. 1.

[0037] A No. 2 spring is provided between the transmission bevel block 610 and the square plate 64 , and the arc-shaped clamping rod 69 contacts the transmission bevel block 610 , and the transmission bevel block 610 is driven to reset by the No. 2 spring.

[0038] The clamping device includes: a transmission block 71, a push plate 72, a connecting plate 73, a transmission triangle 74, a clamping plate 75, an arc rod 76, a limiting tooth 77 and a limiting round rod 78. The transmission block 71 is slidably mounted on the inner wall of the circular column 67, the transmission block 71 is fixedly mounted on the end of the penetrating rod 65 away from the triangular block 66, the push plate 72 is fixedly mounted on the side of the transmission block 71 away from the penetrating rod 65, the clamping plate 75 slides through the inner and outer walls of the positioning block 68, the connecting plate 73 is fixedly mounted on the end of the clamping plate 75 close to the push plate 72, and the transmission triangle 74 is fixedly mounted on the push plate 72 close to the On one side near the clamping plate 75, the arc rod 76 is rotatably installed at the end of the clamping plate 75 away from the connecting plate 73, which can clamp and fix the workpiece to prevent the workpiece from being thermally deformed due to high temperature during welding, causing the position of the workpiece to shift during welding, affecting the welding of the workpiece, and improving the processing accuracy during welding. The limiting teeth 77 are fixedly installed on the circumferential surface of the arc rod 76, and the limiting round rod 78 slides through the inner and outer walls of the clamping plate 75 and the arc rod 76 to prevent the irregular shape of the special workpiece surface from making it difficult to effectively fix the workpiece, thereby improving the practicability of the device.

[0039] A No. 3 spring is provided between the clamping plate 75 and the positioning block 68 , and the limiting tooth 77 is in contact with the limiting round rod 78 , and the clamping plate 75 is driven to reset by the No. 3 spring.

[0040] When the present embodiment is working, the sliding plate 57 moves to drive the long rod 61 to move toward the bottom, and the long rod 61 moves to drive the limiting arc rod 62 to move toward the bottom. After the limiting arc rod 62 moves, it no longer contacts the circular column 67 and releases the limit on the circular column 67. Then, the square plate 64 is manually pushed. The movement of the square plate 64 will drive the sliding block 63 to move. The movement of the sliding block 63 will drive the circular column 67 to move. The movement of the circular column 67 will drive the positioning block 68 to move. The positioning block 68 moves and contacts the workpiece, so that when welding workpieces of different shapes, the device can freely adjust the position of the workpiece, which is convenient for fixing the workpiece and improving the portability of the device. After completing the adjustment of the square plate 64, the through rod 65 is manually pushed. The movement of the through rod 65 will The triangular block 66 is driven to move in the direction of the square plate 64. The movement of the triangular block 66 will contact the arc clamp rod 69 and push the arc clamp rod 69 to rotate to both sides. The rotation of the arc clamp rod 69 will store force for the No. 1 torsion spring. As the triangular block 66 continues to move, when the triangular block 66 is no longer in contact with the arc clamp rod 69, the No. 1 torsion spring is reset to drive the arc clamp rod 69 to rotate in the direction of approaching each other. The rotation of the arc clamp rod 69 will contact the transmission bevel block 610. The rotation of the arc clamp rod 69 will drive the transmission bevel block 610 to move in the direction of the limiting hole. After the transmission bevel block 610 moves, it contacts the limiting hole and is limited by the limiting hole, so that the sliding block 63 can no longer move. After the positioning is completed, the device can be quickly limited, thereby further improving the work efficiency.

[0041] The movement of the through rod 65 will drive the transmission block 71 to move in the direction of the positioning block 68, the movement of the transmission block 71 will drive the push plate 72 to move in the direction of the positioning block 68, the movement of the push plate 72 will drive the transmission triangle 74 to move in the direction of the positioning block 68, the movement of the transmission triangle 74 will drive the connecting plate 73 to move in the direction of approaching each other, the movement of the connecting plate 73 will drive the clamping plate 75 to move to a side close to each other, the movement of the clamping plate 75 will drive the arc rod 76 to move in the direction of the workpiece and contact the workpiece, so as to clamp and fix the workpiece to prevent the workpiece from being moved during operation. During welding, thermal deformation is generated due to high temperature, which causes the position of the workpiece to shift during welding, affecting the welding of the workpiece. To improve the processing accuracy during welding, the limiting round rod 78 is manually pulled out and the arc rod 76 is rotated. The rotation of the arc rod 76 will drive the limiting tooth 77 to rotate. The limiting tooth 77 rotates and then the limiting round rod 78 is put back. The limiting round rod 78 will limit the limiting tooth 77, so that the contact angle between the arc rod 76 and the workpiece can be adjusted to prevent the irregular shape of the special workpiece surface from making it difficult to effectively fix the workpiece, thereby improving the practicability of the device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding device for a sensor housing, comprising a control device (1), characterized in that: A support plate (2) is fixedly mounted on the surface of the control device (1), a support leg (3) is fixedly mounted on the bottom of the support plate (2), a laser welding device body (4) is arranged on the surface of the support plate (2), the laser welding device body (4) is electrically connected to the control device (1), and a placement device is arranged on the top of the support plate (2); The placing device comprises: an operating table (51), an inflating cylinder (52), a piston (53), a transmission vertical rod (54), a sealing plate (56), a sliding plate (57) and a triangular pad (58); the operating table (51) is fixedly mounted on the top of the support plate (2); a sliding groove is provided on the surface of the operating table (51); a plurality of positioning holes are provided on the surface of the operating table (51); a groove is provided on the top of the operating table (51); the inflating cylinder (52) is fixedly mounted on the bottom of the inner wall of the groove; the inflating cylinder (52) The surface of the piston (53) is provided with two air outlet holes, the piston (53) is slidably mounted on the inner wall of the inflator (52), the circumferential surface of the piston (53) is provided with a sealing ring, the transmission vertical rod (54) is fixedly mounted on the top of the transmission vertical rod (54), the sliding plate (57) is slidably mounted on the inner wall of the groove, the sliding plate (57) is fixedly mounted on the top of the transmission vertical rod (54), the sealing plate (56) is slidably mounted on the bottom of the sliding plate (57), and the triangular pad (58) is fixedly mounted on the bottom of the inner wall of the groove; Wherein, a positioning device for positioning the workpiece and a clamping device for fixing the workpiece are arranged on the top of the support plate (2).

2. A laser welding device for a sensor housing according to claim 1, characterized in that: A No. 1 spring (55) is provided between the piston (53) and the inflation cylinder (52), and the sealing plate (56) is in contact with a triangular cushion block (58).

3. A laser welding device for a sensor housing according to claim 2, characterized in that: The positioning device comprises: a long rod (61), a limiting arc rod (62), a sliding block (63), a square plate (64), a through rod (65), two triangular blocks (66), a circular column (67) and a positioning block (68), wherein the long rod (61) is fixedly mounted on the bottom of the sliding plate (57), the limiting arc rod (62) is fixedly mounted on the top of the long rod (61), the sliding block (63) is slidably mounted on the inner wall of the sliding groove, the square plate (64) is fixedly mounted on one end of the sliding block (63), the circular column (67) is fixedly mounted on the other end of the sliding block (63), the through rod (65) slidably penetrates the inner and outer walls of the square plate (64) and the circular column (67) of the sliding block (63), the two triangular blocks (66) are fixedly mounted on both ends of the through rod (65), and the positioning block (68) is fixedly mounted on one end of the circular column (67) away from the sliding block (63).

4. A laser welding device for a sensor housing according to claim 3, characterized in that: The positioning device also includes: two arc-shaped clamping rods (69), a transmission bevel block (610) and a reset rod (611); the two arc-shaped clamping rods (69) are rotatably mounted on a side of the square plate (64) away from the sliding block (63); the transmission bevel block (610) slides through the inner and outer walls of the square plate (64); and the reset rod (611) is fixedly mounted on the top of the arc-shaped clamping rod (69).

5. A laser welding device for a sensor housing according to claim 4, characterized in that: A first torsion spring is arranged between the arc-shaped clamping rod (69) and the square plate (64), and the reset rod (611) is in contact with the limiting hole.

6. A laser welding device for a sensor housing according to claim 5, characterized in that: A No. 2 spring is provided between the transmission bevel block (610) and the square plate (64), and the arc-shaped clamping rod (69) is in contact with the transmission bevel block (610).

7. A laser welding device for a sensor housing according to claim 6, characterized in that: The clamping device comprises: a transmission block (71), a push plate (72), a connecting plate (73), a transmission triangle (74), a clamping plate (75), an arc rod (76), a limiting tooth (77) and a limiting round rod (78); the transmission block (71) is slidably mounted on the inner wall of the circular column (67); the transmission block (71) is fixedly mounted on one end of the through-rod (65) away from the triangle block (66); the push plate (72) is fixedly mounted on one side of the transmission block (71) away from the through-rod (65); the clamping plate (75 ... side of the through-rod (65) away from the triangle block (66); the The arc rod (76) is rotatably mounted on the end of the clamping plate (75) away from the connecting plate (73), and the limiting tooth (77) is fixedly mounted on the circumferential surface of the arc rod (76). The limiting round rod (78) slidably penetrates the inner and outer walls of the clamping plate (75) and the arc rod (76).

8. A laser welding device for a sensor housing according to claim 7, characterized in that: A No. 3 spring is arranged between the clamping plate (75) and the positioning block (68), and the limiting tooth (77) is in contact with the limiting round rod (78).

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