Welding device for automobile exhaust temperature sensor

Abstract

The invention discloses a welding device for an automobile exhaust temperature sensor, and relates to the technical field of automobile part production and processing. The device comprises a supporting frame, two symmetrically-distributed top plates are fixedly arranged at the top end of the supporting frame, a wire intermittent conveying assembly is arranged between the two top plates, a wire synchronous positioning assembly is arranged on the wire intermittent conveying assembly, and a sensor intermittent conveying assembly is arranged on the top plate located on the inner side. A top frame is arranged on one side of the sensor intermittent conveying assembly, and a welding synchronous positioning assembly is arranged in the top frame. By arranging the welding synchronous positioning assembly, a lifting frame drives a push rod to push a corresponding temperature sensor to move towards a wire in the process that the welding device body is driven to descend, and the push rod drives two positioning rods to get close to each other while moving; the push rod and the positioning rod are matched with each other to drive the temperature sensor pin and the wire to be automatically spliced, and meanwhile the temperature sensor achieves the clamping and fixing effect.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts production and processing, in particular to an automobile exhaust temperature sensor welding device. Background Art

[0002] An automobile exhaust temperature sensor is a sensor used to monitor the temperature of gas in an exhaust system. It is mainly used in engine management systems to help control the operation of fuel injection, turbochargers, and catalytic converters, thereby improving engine performance and emission control. During the production process of the automobile exhaust temperature sensor, the pins of the temperature chip need to be welded to the wires through a welding device. During the welding process, the pins of the temperature chip need to be manually aligned with the wires and then the joints are welded through a welding device. Manual operation takes a long time, reducing overall production efficiency. In addition, during the manual welding process, the operator's technical level and stability will affect the welding effect, which may result in uneven solder joints and affect the welding quality. Secondly, the fluctuations generated during welding will cause the lead to deviate, thereby increasing the incidence of welding defects such as cold solder joints and cold solder joints. In response to the above problems, the inventor proposes an automobile exhaust temperature sensor welding device to solve the above problems. Summary of the invention

[0003] In order to solve the problem of automatic splicing and welding of the pins and wires of the temperature chip and the problem of wire limitation during welding; the purpose of the present invention is to provide a welding device for an automobile exhaust temperature sensor.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: a welding device for an automobile exhaust temperature sensor, comprising a supporting frame, two symmetrically distributed top plates are fixedly provided on the top of the supporting frame, a wire intermittent conveying assembly is provided between the two top plates, a wire intermittent conveying assembly is provided on the wire intermittent conveying assembly, a sensor intermittent conveying assembly is provided on the inner top plate, a top frame is provided on one side of the sensor intermittent conveying assembly, a welding synchronous positioning assembly is provided on the top frame, a welding device body is provided on the welding synchronous positioning assembly, and a driving assembly is provided in the supporting frame.

[0005] Preferably, the driving assembly includes a fixed frame, which is fixedly mounted on a supporting frame, a driving shaft is rotatably provided on the fixed frame, a motor is fixedly provided in the fixed frame, and a driving end of the motor is connected to the driving shaft via a pulley transmission group.

[0006] The top end of the lifting post is fixedly provided with a bottom plate used for cooperating with the No. 1 cam, and the outer wall of the No. 1 cam is slidably connected to the bottom plate, and the bottom end of the lifting post is fixedly provided with a connecting frame, and the top end of the connecting frame is fixedly provided with a No. 1 loading frame, and the top end of the connecting frame is fixedly provided with a No. 1 turntable, and the outer wall of the No. 1 cam is slidably connected to the bottom plate.

[0007] Preferably, the sensor intermittent conveying assembly includes two symmetrically distributed fixed support plates, the two fixed support plates are fixedly mounted on the corresponding top plates, two symmetrically distributed guide rails are fixedly arranged between the two fixed support plates, a sliding plate is slidably arranged on the guide rails, a lifting plate is slidably arranged on the sliding plate, a No. 1 fixed support rod is fixedly arranged at the bottom end of the top plate on one side of the fixed support plate, a No. 2 fixed support rod is fixedly arranged at the top end of the top plate on one side of the top frame, a rotating rod is rotatably arranged at the bottom end of the No. 1 fixed support rod, an active rod is rotatably arranged at the other end of the rotating rod, a transmission rod is rotatably arranged at the top end of the No. 2 fixed support rod, and the other end of the active rod is rotatably connected to the middle of the transmission rod, and a fixed sleeve is arranged on the outer wall of the drive shaft There is a No. 2 cam used in conjunction with the rotating rod, a swing rod is rotatably provided on the fixed frame near the No. 2 cam, a No. 3 cam used in conjunction with the swing rod is fixedly sleeved on the outer wall of the driving shaft, a connecting shaft is rotatably provided at the top of the swing rod, and the other end of the connecting shaft is rotatably connected to the sliding plate, a No. 2 feeding frame is fixedly provided on the outer side of the lifting plate, a return spring is fixedly provided on the side of the sliding plate near the top frame, and the other end of the return spring is fixedly connected to the corresponding fixed support plate, a No. 1 roller used in conjunction with the No. 2 cam is rotatably provided at the middle part of the rotating rod, a No. 2 roller is rotatably provided at the end of the transmission rod, and the No. 2 roller is slidably connected to the lifting plate, and a No. 3 roller used in conjunction with the No. 3 cam is rotatably provided at the bottom end of the swing rod.

[0008] Preferably, the welding synchronous positioning assembly includes four No. 1 slide rails distributed in a rectangular array, the four No. 1 slide rails are respectively fixedly mounted on the inner walls of the top frame, the No. 1 slide rail is slidably provided with a lifting frame, and the welding device body is fixedly connected to the lifting frame, and a No. 2 slide rail used in conjunction with the lifting frame is fixedly provided on the top of the top plate on one side of the top frame. A push rod is slidably provided on the No. 2 slide rail, and a driven rod is rotatably provided on the top of the push rod away from the fixed plate side, and the other end of the driven rod is rotatably connected to the lifting frame. An electric cylinder is fixedly provided in the middle of the top of the top frame, and the driving end of the electric cylinder is fixedly connected to the lifting frame. An internal fixing frame is fixedly provided at the bottom end of the top plate near one side of the top frame, and a slide plate is slidably provided in the internal fixing frame, and two symmetrically distributed connecting plates are fixedly provided at the bottom end of the push rod, and the connecting plate is fixedly connected to the slide plate, and two symmetrically distributed No. 3 slide rails are fixedly provided in the middle of the top of the internal fixing frame, and positioning rods are slidably provided on the two No. 3 slide rails, and guide columns are fixedly provided on the positioning rods, and two symmetrically distributed inclined grooves are provided on the slide plate, and the guide columns slide in the inclined grooves.

[0009] Preferably, the wire synchronous positioning assembly includes two symmetrically distributed No. 2 turntables, the two No. 2 turntables are fixedly mounted on the driving shaft, two symmetrically distributed guide rods are fixedly provided on the top of the two top plates, a lifting frame is slidably provided on the two guide rods on the same side, a No. 2 guide rod used in conjunction with the No. 2 turntable is fixedly provided at the middle part of the bottom end of the lifting frame, a limit plate is fixedly provided on the lifting frame, a plurality of symmetrically distributed M-grooves are provided on the limit plate, a sliding groove used in conjunction with the M-grooves is provided on the lifting frame, and the limit plate is slidably connected to the sliding groove, a No. 2 guide groove used in conjunction with the No. 2 guide rod is provided on the No. 2 turntable, and the end of the No. 2 guide rod is slidably connected to the No. 2 guide groove.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention sets a welding synchronous positioning assembly, so that the lifting frame drives the welding device body to descend and drives the push rod to push the corresponding temperature sensor to move toward the wire. The push rod moves and drives the two positioning rods to approach each other. The push rod and the positioning rod cooperate with each other to drive the temperature sensor pin and the wire to automatically splice. At the same time, the temperature sensor achieves a clamping and fixing effect. After the splicing is completed, the splicing connection is welded by the welding device body, thereby improving the welding quality and the accuracy of the welding points, and reducing the errors and instability caused by manual operation.

[0012] 2. The present invention provides a wire intermittent conveying assembly and a sensor intermittent conveying assembly, so that the wire intermittent conveying assembly and the sensor intermittent conveying assembly respectively drive the temperature sensor and the lead wire to achieve synchronous intermittent conveying, thereby improving the continuity of the overall welding production and thus improving the production efficiency;

[0013] 3. The present invention sets a wire synchronous positioning component so that the two wires enter the corresponding positions of the M-slot respectively. The limit plate is inserted into the corresponding slide groove in the fixed plate during the descending process. As the limit plate descends, the space of the M-slot is reduced, thereby driving the two wires to adjust with the position of the M-slot and to be limited and clamped. The above operations achieve the effect of positioning, adjusting and clamping the wires, thereby ensuring the stability of the wires during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the overall dissected structure of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the conductor synchronous positioning assembly in the present invention;

[0018] Figure 4 It is a structural schematic diagram of the conductor intermittent conveying assembly in the present invention;

[0019] Figure 5 It is a structural schematic diagram of the intermittent conveying assembly of the sensor in the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the swing lever and the return spring in the present invention;

[0021] Figure 7 This is a schematic diagram of the top plate structure in the present invention when viewed from above;

[0022] Figure 8 It is a partial structural schematic diagram of the welding synchronous positioning component in the present invention;

[0023] Fig. 9 It is a schematic diagram of the structure of the slide plate and the positioning rod in the present invention;

[0024] Fig.10 It is a schematic diagram of the structure of the drive shaft in the present invention;

[0025] Fig.11 It is a schematic diagram of the structure of the fixed plate and the slide groove in the present invention;

[0026] Fig.12 It is a structural schematic diagram of the No. 2 feeding frame in the present invention;

[0027] Fig.13 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0028] Fig.14 for Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0029] Fig.15 for Figure 7 Enlarged schematic diagram of the structure at C in the middle.

[0030] In the figure: 1, support frame; 2, top plate; 3, wire intermittent conveying assembly; 301, fixed plate; 302, cam No. 1; 303, fixed bracket; 304, sliding frame; 305, turntable No. 1; 306, guide groove No. 1; 307, guide rod No. 1; 308, fixed guide frame; 309, lifting column; 310, bottom plate; 311, connecting frame; 312, feeding frame No. 1; 4, sensor intermittent conveying assembly; 401, fixed support plate; 402, guide rail; 403, sliding plate; 404, lifting plate; 405, fixed support rod No. 1; 406, rotating rod; 407, active rod; 408, fixed support rod No. 2; 409, transmission rod; 410, cam No. 2; 411, cam No. 3; 412, swing rod; 413, connecting shaft; 414, reset spring; 415 , No. 2 feeding frame; 416, No. 1 roller; 417, No. 2 roller; 418, No. 3 roller; 5, wire synchronous positioning assembly; 501, No. 2 turntable; 502, guide rod; 503, lifting frame; 504, No. 2 guide rod; 505, No. 2 guide groove; 506, limit plate; 507, M groove; 508, slide groove; 6, top frame; 7, welding synchronous positioning assembly; 701, No. 1 slide rail; 702, lifting frame; 703, No. 2 slide rail; 704, push rod; 705, driven rod; 706, built-in fixing frame; 707, No. 3 slide rail; 708, positioning rod; 709, guide column; 710, slide plate; 711, inclined groove; 712, connecting plate; 713, electric cylinder; 8, welding device body; 9, driving assembly; 901, fixing frame; 902, driving shaft; 903, motor. DETAILED DESCRIPTION

[0031] 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.

[0032] Example: Figure 1-15As shown, the present invention provides a technical solution: a welding device for an automobile exhaust temperature sensor, comprising a supporting frame 1, two symmetrically distributed top plates 2 are fixedly provided on the top of the supporting frame 1, a wire intermittent conveying assembly 3 is provided between the two top plates 2, a wire intermittent conveying assembly 5 is provided on the wire intermittent conveying assembly 3, a sensor intermittent conveying assembly 4 is provided on the inner top plate 2, a top frame 6 is provided on one side of the sensor intermittent conveying assembly 4, a welding synchronous positioning assembly 7 is provided in the top frame 6, a welding device body 8 is provided on the welding synchronous positioning assembly 7, and a driving assembly 9 is provided in the supporting frame 1.

[0033] The driving assembly 9 includes a fixed frame 901, which is fixedly mounted on the supporting frame 1. A driving shaft 902 is rotatably provided on the fixed frame 901. A motor 903 is fixedly provided in the fixed frame 901, and a driving end of the motor 903 is connected to the driving shaft 902 via a pulley transmission group.

[0034] By adopting the above technical solution, the motor 903 drives the driving shaft 902 to rotate.

[0035] The wire intermittent conveying assembly 3 includes a fixed plate 301, which is fixedly installed between the two top plates 2. A cam 302 is fixedly sleeved on the outer wall of the driving shaft 902. A fixed bracket 303 is fixedly provided on the side of the support frame 1 close to the cam 302. A sliding frame 304 is slidably provided on the fixed bracket 303. A fixed guide frame 308 is fixedly provided on the upper part of the sliding frame 304. A lifting column 309 is inserted through the fixed guide frame 308. A lifting column 309 is fixedly provided at the bottom end thereof with a The cam 302 is used in conjunction with a base plate 310, and the outer wall of the No. 1 cam 302 is slidably connected to the base plate 310, a connecting frame 311 is fixedly provided on the top of the lifting column 309, and a No. 1 loading frame 312 is fixedly provided on the top of the connecting frame 311, a No. 1 turntable 305 is fixedly sleeved on the outer wall of the driving shaft 902 close to the No. 1 cam 302, a No. 1 guide rod 307 used in conjunction with the No. 1 turntable 305 is fixedly provided on the sliding frame 304, and the No. 1 guide rod 307 is slidably connected to the No. 1 turntable 305.

[0036] By adopting the above technical solution, the No. 1 feeding frame 312 is made to perform periodic intermittent motion under the action of the No. 1 cam 302 and the No. 1 turntable 305, so as to perform step-by-step intermittent feeding of the wire.

[0037] The sensor intermittent conveying assembly 4 includes two symmetrically distributed fixed support plates 401, and the two fixed support plates 401 are fixedly installed on the corresponding top plate 2. Two symmetrically distributed guide rails 402 are fixedly arranged between the two fixed support plates 401. A sliding plate 403 is slidably arranged on the guide rail 402, and a lifting plate 404 is slidably arranged on the sliding plate 403. A No. 1 fixed support rod 405 is fixedly arranged at the bottom end of the top plate 2 on one side of the fixed support plate 401, and a No. 2 fixed support rod 408 is fixedly arranged at the top end of the top plate 2 on one side of the top frame 6. A rotating rod 406 is rotatably arranged at the bottom end of the No. 1 fixed support rod 405, and a main rotating rod 406 is rotatably arranged at the other end of the rotating rod 406. A driving rod 407 is rotatably provided at the top of the No. 2 fixed support rod 408, and the other end of the active rod 407 is rotatably connected to the middle part of the driving rod 409. A No. 2 cam 410 used in conjunction with the rotating rod 406 is fixedly provided on the outer wall of the driving shaft 902. A swing rod 412 is rotatably provided on the side of the fixed frame 901 close to the No. 2 cam 410. A No. 3 cam 411 used in conjunction with the swing rod 412 is fixedly provided on the outer wall of the driving shaft 902. A connecting shaft 413 is rotatably provided at the top of the swing rod 412, and the other end of the connecting shaft 413 is rotatably connected to the sliding plate 403. A No. 2 loading frame 415 is fixedly provided on the outer side of the lifting plate 404.

[0038] By adopting the above technical solution, the second feeding frame 415 is made to perform periodic intermittent operation under the action of the second cam 410 and the third cam 411, so as to perform step-by-step intermittent conveying to the sensor.

[0039] The welding synchronous positioning assembly 7 includes four No. 1 slide rails 701 distributed in a rectangular array, and the four No. 1 slide rails 701 are respectively fixedly installed on the inner wall of the top frame 6. A lifting frame 702 is slidably provided on the No. 1 slide rail 701, and the welding device body 8 is fixedly connected to the lifting frame 702. A No. 2 slide rail 703 used in conjunction with the lifting frame 702 is fixedly provided at the top of the top plate 2 on one side of the top frame 6. A push rod 704 is slidably provided on the No. 2 slide rail 703. A driven rod 705 is rotatably provided on the top of the push rod 704 away from the fixed plate 301, and the other end of the driven rod 705 is rotatably connected to the lifting frame 702. An electric cylinder 713 is fixedly provided at the middle part of the top of the top frame 6, and the driving end of the electric cylinder 713 is fixedly connected to the lifting frame 702. A built-in fixing frame 706 is fixedly provided at the bottom end of the top plate 2 close to the side of the top frame 6. A slide plate 710 is slidably provided in the built-in fixing frame 706. Two symmetrically distributed connecting plates 712 are fixedly provided at the bottom of the push rod 704, and the connecting plates 712 are fixedly connected to the slide plate 710.

[0040] By adopting the above technical solution, the electric cylinder 713 pushes the lifting frame 702 and the welding device body 8 to move up and down, and the driven rod 705 pushes the push rod 704 and the slide plate 710 to move synchronously.

[0041] The wire synchronous positioning assembly 5 includes two symmetrically distributed No. 2 turntables 501, and the two No. 2 turntables 501 are fixedly mounted on the driving shaft 902. Two symmetrically distributed guide rods 502 are fixedly arranged on the top of the two top plates 2. A lifting frame 503 is slidably arranged on the two guide rods 502 on the same side. A No. 2 guide rod 504 used in conjunction with the No. 2 turntable 501 is fixedly arranged in the middle of the bottom end of the lifting frame 503, and a limit plate 506 is fixedly arranged on the lifting frame 503.

[0042] By adopting the above technical solution, the second turntable 501 drives the limiting plate 506 to move up and down.

[0043] Two symmetrically distributed No. 3 slide rails 707 are fixedly provided at the middle of the top of the built-in fixing frame 706, and positioning rods 708 are slidably provided on the two No. 3 slide rails 707, and guide columns 709 are fixedly provided on the positioning rods 708. Two symmetrically distributed inclined grooves 711 are provided on the slide plate 710, and the guide columns 709 slide in the inclined grooves 711.

[0044] By adopting the above technical solution, the two positioning rods 708 are driven to move synchronously to each other to position and clamp the sensor during the movement of the slide plate 710.

[0045] The first rotating disk 305 is provided with a first guide groove 306 for use with the first guide rod 307 , and the end of the first guide rod 307 slides in the first guide groove 306 .

[0046] By adopting the above technical solution, the No. 1 turntable 305 rotates through the No. 1 guide groove 306 to drive the No. 1 guide rod 307 to move.

[0047] A return spring 414 is fixedly provided on one side of the sliding plate 403 close to the top frame 6, and the other end of the return spring 414 is fixedly connected to the corresponding fixed support plate 401, a No. 1 roller 416 used in conjunction with the No. 2 cam 410 is rotatably provided at the middle part of the rotating rod 406, a No. 2 roller 417 is rotatably provided at the end of the transmission rod 409, and the No. 2 roller 417 is slidably connected to the lifting plate 404, and a No. 3 roller 418 used in conjunction with the No. 3 cam 411 is rotatably provided at the bottom end of the swing rod 412.

[0048] By adopting the above technical solution, the return spring 414 drives the sliding plate 403 to return to its original position.

[0049] The limit plate 506 is provided with a plurality of symmetrically distributed M grooves 507, the lifting frame 503 is provided with a slide groove 508 used in conjunction with the M groove 507, and the limit plate 506 is slidably connected to the slide groove 508, the No. 2 turntable 501 is provided with a No. 2 guide groove 505 used in conjunction with the No. 2 guide rod 504, and the end of the No. 2 guide rod 504 is slidably connected to the No. 2 guide groove 505.

[0050] By adopting the above technical solution, the second turntable 501 is rotated through the second guide groove 505 to drive the second guide rod 504 to move.

[0051] Working principle: First, control to start the motor 903, and the driving end of the motor 903 drives the driving shaft 902 to rotate one circle clockwise. During the rotation of the driving shaft 902, the No. 2 turntable 501 drives the limit plate 506 to move upward under the action of the guide rod 502 through the No. 2 guide groove 505, the No. 2 guide rod 504 and the lifting frame 503. After the limit plate 506 has moved, the protrusion of the No. 1 cam 302 contacts the bottom plate 310. The No. 1 cam 302 drives the two No. 1 feeding frames 312 to rise through the bottom plate 310, the lifting column 309, and the connecting frame 311 to lift the corresponding wires on the fixed plate 301. After the No. 1 feeding frame 312 has risen, the No. 1 turntable 305 rotates through the No. 1 guide groove 306, the No. 1 guide rod 3 07 and the fixed guide frame 308 drive the lifting column 309 to move toward the side of the welding device body 8. After the lifting column 309 drives the No. 1 feeding frame 312 to move, the driving shaft 902 continues to rotate to drive the protrusion of the No. 1 cam 302 to separate from the bottom plate 310, and according to the same steps as above, the No. 1 feeding frame 312 is driven to descend and the wire is placed on the corresponding position of the fixed plate 301. After the No. 1 feeding frame 312 is completely lowered, the No. 1 turntable 305 rotates through the No. 1 guide groove 306 to drive the No. 1 feeding frame 312 to reset. During the entire process of the No. 1 feeding frame 312 moving, the limit plate 506 is always in a raised state under the action of the No. 2 guide groove 505. When the No. 1 feeding frame 312 is moved, the No. 2 turntable 501 passes through the No. 2 guide groove 5 05 drives the limit plate 506 to reset. During the reset process, the limit plate 506 positions and clamps the wire through the M groove 507 and the slide groove 508 to ensure the stability of the wire during welding. The driving shaft 902 rotates and drives the protrusion of the second cam 410 to contact the first roller 416. The second cam 410 pushes the rotating rod 406 to turn upward with the connection with the first fixed support rod 405 as the axis through the first roller 416. The rotating rod 406 pushes the transmission rod 409 to turn upward with the connection with the second fixed support rod 408 as the axis through the active rod 407. The transmission rod 409 pushes the lifting plate 404 and the second feeding frame 415 to move upward through the second roller 417. After the lifting plate 404 has risen, the third cam 411 The protrusion contacts with the third roller 418, and the third cam 411 drives the swing rod 412 to rotate clockwise with the rotation connection with the fixed frame 901 as the axis through the third roller 418. The swing rod 412 drives the sliding plate 403 and the second feeding frame 415 to move away from the top frame 6 under the guidance of the guide rail 402 through the connecting shaft 413 and stretch the reset spring 414. After the sliding plate 403 has moved, the protrusion of the second cam 410 is separated from the first roller 416, and the second feeding frame 415 is driven to descend according to the same steps as above. After the second feeding frame 415 has descended, the protrusion of the third cam 411 contacts and separates from the third roller 418, and the second feeding frame 415 is reset under the action of the reset spring 414 according to the same steps as above.In this way, the first loading frame 312 and the second loading frame 415 are driven to perform periodic reciprocating motion to achieve the effect of intermittent synchronous conveying of the wire and the temperature sensor. When the temperature sensor and the wire are synchronously and intermittently conveyed to the bottom of the welding device body 8, the driving end of the electric cylinder 713 is controlled to extend and push the lifting frame 702 and the welding device body 8 to descend synchronously. At the same time, the push rod 704 is pushed by the driven rod 705 to move under the guidance of the second slide rail 703, and the corresponding temperature sensor in the second loading frame 415 is driven to move by the push rod 704. During the movement of the push rod 704, the connecting plate 712 drives the slide plate 710 to slide in the built-in fixing frame 706. During the sliding process of the slide plate 710, the two positioning rods 708 are driven to approach each other through the inclined groove 711 and the guide column 709. The push rod 704 pushes the temperature sensor lead wire to contact the corresponding wire. At this time, the two positioning rods 708 are just tightly fitted with the two sides of the temperature sensor to clamp and fix the temperature sensor. The welding head of the welding device body 8 is just in contact with the lead wire and the wire for welding. After the welding is completed, the driving end of the control electric cylinder 713 is retracted, and the push rod 704 and the two positioning rods 708 are driven to reset according to the same steps above.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A welding device for an automobile exhaust temperature sensor, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly provided with two symmetrically distributed top plates (2), a wire intermittent conveying assembly (3) is provided between the two top plates (2), a wire synchronous positioning assembly (5) is provided on the wire intermittent conveying assembly (3), a sensor intermittent conveying assembly (4) is provided on the inner top plate (2), a top frame (6) is provided on one side of the sensor intermittent conveying assembly (4), a welding synchronous positioning assembly (7) is provided in the top frame (6), a welding device body (8) is provided on the welding synchronous positioning assembly (7), and a driving assembly (9) is provided in the support frame (1).

2. A welding device for an automobile exhaust temperature sensor as claimed in claim 1, characterized in that: The driving assembly (9) comprises a fixed frame (901), wherein the fixed frame (901) is fixedly mounted on the supporting frame (1), a driving shaft (902) is rotatably arranged on the fixed frame (901), a motor (903) is fixedly arranged in the fixed frame (901), and a driving end of the motor (903) is connected to the driving shaft (902) via a pulley transmission group.

3. A welding device for an automobile exhaust temperature sensor as claimed in claim 2, characterized in that: The wire intermittent conveying assembly (3) comprises a fixed plate (301), the fixed plate (301) is fixedly installed between two top plates (2), a first cam (302) is fixedly sleeved on the outer wall of the driving shaft (902), a fixed bracket (303) is fixedly provided on the side of the support frame (1) close to the first cam (302), a sliding frame (304) is slidably provided on the fixed bracket (303), a fixed guide frame (308) is fixedly provided on the upper part of the sliding frame (304), a lifting column (309) is inserted through the fixed guide frame (308), and a lifting column (309) is fixedly provided at the bottom end of the lifting column (309). A bottom plate (310) is provided for use with a No. 1 cam (302), and the outer wall of the No. 1 cam (302) is slidably connected to the bottom plate (310); a connecting frame (311) is fixedly provided at the top of the lifting column (309); a No. 1 loading frame (312) is fixedly provided at the top of the connecting frame (311); a No. 1 turntable (305) is fixedly sleeved on the outer wall of the driving shaft (902) near the No. 1 cam (302); a No. 1 guide rod (307) for use with the No. 1 turntable (305) is fixedly provided on the sliding frame (304), and the No. 1 guide rod (307) is slidably connected to the No. 1 turntable (305).

4. A welding device for an automobile exhaust temperature sensor as claimed in claim 2, characterized in that: The sensor intermittent conveying assembly (4) comprises two symmetrically distributed fixed support plates (401), the two fixed support plates (401) are fixedly mounted on the corresponding top plates (2), two symmetrically distributed guide rails (402) are fixedly arranged between the two fixed support plates (401), a sliding plate (403) is slidably arranged on the guide rails (402), a lifting plate (404) is slidably arranged on the sliding plate (403), a first fixed support rod (405) is fixedly arranged at the bottom end of the top plate (2) on one side of the fixed support plate (401), a second fixed support rod (408) is fixedly arranged at the top end of the top plate (2) on one side of the top frame (6), a rotating rod (406) is rotatably arranged at the bottom end of the first fixed support rod (405), and a rotating rod (406) is rotatably arranged at the other end of the rotating rod (406). An active rod (407), a transmission rod (409) is rotatably provided at the top end of the No. 2 fixed support rod (408), and the other end of the active rod (407) is rotatably connected to the middle part of the transmission rod (409), a No. 2 cam (410) used in conjunction with the rotating rod (406) is fixedly sleeved on the outer wall of the driving shaft (902), a swing rod (412) is rotatably provided on the side of the fixed frame (901) close to the No. 2 cam (410), a No. 3 cam (411) used in conjunction with the swing rod (412) is fixedly sleeved on the outer wall of the driving shaft (902), a connecting shaft (413) is rotatably provided at the top end of the swing rod (412), and the other end of the connecting shaft (413) is rotatably connected to the sliding plate (403), and a No. 2 loading frame (415) is fixedly provided on the outer side of the lifting plate (404).

5. The automobile exhaust temperature sensor welding device according to claim 1, characterized in that: The welding synchronous positioning assembly (7) comprises four No. 1 slide rails (701) distributed in a rectangular array, the four No. 1 slide rails (701) are respectively fixedly mounted on the inner wall of the top frame (6), a lifting frame (702) is slidably mounted on the No. 1 slide rail (701), and the welding device body (8) is fixedly connected to the lifting frame (702), and a No. 2 slide rail (703) for use with the lifting frame (702) is fixedly mounted on the top of the top plate (2) located on one side of the top frame (6), and a push rod (704) is slidably mounted on the No. 2 slide rail (703), and the top end of the push rod (704) is away from the fixed plate (301). ) side is rotatably provided with a driven rod (705), the other end of the driven rod (705) is rotatably connected to the lifting frame (702), an electric cylinder (713) is fixedly provided at the middle of the top end of the top frame (6), and the driving end of the electric cylinder (713) is fixedly connected to the lifting frame (702), a built-in fixing frame (706) is fixedly provided at the bottom end of the top plate (2) close to the top frame (6), a slide plate (710) is slidably provided in the built-in fixing frame (706), and two symmetrically distributed connecting plates (712) are fixedly provided at the bottom end of the push rod (704), and the connecting plates (712) are fixedly connected to the slide plate (710).

6. A welding device for automobile exhaust temperature sensor according to claim 1, characterized in that: The wire synchronous positioning assembly (5) comprises two symmetrically distributed No. 2 turntables (501), the two No. 2 turntables (501) are fixedly mounted on the driving shaft (902), the top ends of the two top plates (2) are fixedly provided with two symmetrically distributed guide rods (502), a lifting frame (503) is slidably provided on the two guide rods (502) on the same side, a No. 2 guide rod (504) used in conjunction with the No. 2 turntable (501) is fixedly provided at the middle of the bottom end of the lifting frame (503), and a limit plate (506) is fixedly provided on the lifting frame (503).

7. A welding device for automobile exhaust temperature sensor as claimed in claim 5, characterized in that: Two symmetrically distributed No. 3 slide rails (707) are fixedly provided at the middle of the top of the built-in fixing frame (706), and positioning rods (708) are slidably provided on the two No. 3 slide rails (707), and guide columns (709) are fixedly provided on the positioning rods (708). The slide plate (710) is provided with two symmetrically distributed inclined grooves (711), and the guide columns (709) slide in the inclined grooves (711).

8. The automobile exhaust temperature sensor welding device as claimed in claim 3, characterized in that: The first rotating disk (305) is provided with a first guide groove (306) used in conjunction with a first guide rod (307), and the end of the first guide rod (307) slides in the first guide groove (306).

9. A welding device for an automobile exhaust temperature sensor as claimed in claim 4, characterized in that: A return spring (414) is fixedly provided on one side of the sliding plate (403) close to the top frame (6), and the other end of the return spring (414) is fixedly connected to the corresponding fixed support plate (401); a first roller (416) used in conjunction with a second cam (410) is rotatably provided at the middle of the rotating rod (406); a second roller (417) is rotatably provided at the end of the transmission rod (409), and the second roller (417) is slidably connected to the lifting plate (404); and a third roller (418) used in conjunction with a third cam (411) is rotatably provided at the bottom end of the swing rod (412).

10. The automobile exhaust temperature sensor welding device according to claim 6, characterized in that: The limiting plate (506) is provided with a plurality of symmetrically distributed M grooves (507), the lifting frame (503) is provided with a slide groove (508) used in conjunction with the M grooves (507), and the limiting plate (506) is slidably connected to the slide groove (508), the second turntable (501) is provided with a second guide groove (505) used in conjunction with the second guide rod (504), and the end of the second guide rod (504) is slidably connected to the second guide groove (505).

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