An automotive exhaust gas temperature sensor welding device

Abstract

The present invention discloses a welding device for an automotive exhaust gas temperature sensor, which relates to the technical field of automotive parts production and processing; and the present invention includes a support frame, two symmetrically distributed top plates are fixedly arranged at the top of the support 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, a sensor intermittent conveying assembly is arranged on the inner top plate, 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 setting the welding synchronous positioning assembly, during the process of the lifting frame driving the welding device body to descend, the push rod is driven to push the corresponding temperature sensor towards the wire, and while the push rod moves, the two positioning rods are driven to approach each other, and the push rod and the positioning rods cooperate with each other to drive the pins of the temperature sensor to be automatically spliced with the wire and at the same time the temperature sensor is clamped and fixed.

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] Preferably, the wire intermittent conveying assembly includes a fixing plate fixedly installed between two top plates. A first cam is fixedly sleeved on the outer wall of the driving shaft. A fixing bracket is fixedly provided on one side of the support frame close to the first cam. A sliding frame is slidably provided on the fixing bracket. A fixing guide frame is fixedly provided on the upper part of the sliding frame. A lifting column is inserted through the fixing guide frame. A bottom plate for cooperating with the first cam is fixedly provided at the bottom end of the lifting column. The outer wall of the first cam is slidably connected to the bottom plate. A connecting frame is fixedly provided at the top end of the lifting column. A first feeding frame is fixedly provided at the top end of the connecting frame. A first turntable is fixedly sleeved on the outer wall of the driving shaft close to the first cam. A first guide rod for cooperating with the first turntable is fixedly provided on the sliding frame. The first guide rod is slidably connected to the first turntable. A first guide groove for cooperating with the first guide rod is formed on the first turntable. The end of the first guide rod slides in the first guide groove.

[0007] Preferably, the sensor intermittent conveying assembly includes two symmetrically distributed fixing support plates. Both of the fixing support plates are fixedly installed on the corresponding top plates. Two symmetrically distributed guide rails are fixedly provided between the two fixing support plates. A sliding plate is slidably provided on the guide rails. A lifting plate is slidably provided on the sliding plate. A first fixed support rod is fixedly provided at the bottom end of the top plate on one side of the fixing support plate. A second fixed support rod is fixedly provided at the top end of the top plate on one side of the top frame. A rotating rod is rotatably provided at the bottom end of the first fixed support rod. A driving rod is rotatably provided at the other end of the rotating rod. A transmission rod is rotatably provided at the top end of the second fixed support rod. The other end of the driving rod is rotatably connected to the middle of the transmission rod. A second cam for cooperating with the rotating rod is fixedly sleeved on the outer wall of the driving shaft. A swinging rod is rotatably provided on one side of the fixed frame close to the second cam. A third cam for cooperating with the swinging rod is fixedly sleeved on the outer wall of the driving shaft. A connecting shaft is rotatably provided at the top end of the swinging rod. The other end of the connecting shaft is rotatably connected to the sliding plate. A second feeding frame is fixedly provided on the outer side of the lifting plate. A return spring is fixedly provided on one side of the sliding plate close to the top frame. The other end of the return spring is fixedly connected to the corresponding fixing support plate. A first roller for cooperating with the second cam is rotatably provided in the middle of the rotating rod. A second roller is rotatably provided at the end of the transmission rod. The second roller is slidably connected to the lifting plate. A third roller for cooperating with the third cam is rotatably provided at the bottom end of the swinging rod.

[0008] Preferably, the welding synchronous positioning assembly includes four first slide rails distributed in a rectangular array. The four first slide rails are respectively fixedly installed on the inner wall of the top frame. A lifting frame is slidably arranged on the first slide rails, and the welding device body is fixedly connected to the lifting frame. On the top of the top plate on one side of the top frame, a second slide rail used in cooperation with the lifting frame is fixedly arranged. A push rod is slidably arranged on the second slide rail. A driven rod is rotatably arranged at the top of the push rod away from the fixed plate side. The other end of the driven rod is rotatably connected to the lifting frame. A cylinder is fixedly arranged in the middle of the top of the top frame, and the driving end of the cylinder is fixedly connected to the lifting frame. An internal fixed frame is fixedly arranged on the bottom of the top plate close to one side of the top frame. A sliding plate is slidably arranged in the internal fixed frame. Two symmetrically distributed connecting plates are fixedly arranged at the bottom of the push rod, and the connecting plates are fixedly connected to the sliding plate. Two symmetrically distributed third slide rails are fixedly arranged in the middle of the top of the internal fixed frame. Positioning rods are slidably arranged on the two third slide rails. Guide columns are fixedly arranged on the positioning rods. Two symmetrically distributed inclined grooves are formed in the sliding plate, and the guide columns slide in the inclined grooves.

[0009] Preferably, the wire synchronous positioning assembly includes two symmetrically distributed second turntables. The two second turntables are both fixedly installed on the driving shaft. Two symmetrically distributed guide rods are fixedly arranged on the top of each of the two top plates. A lifting frame is slidably arranged on the two guide rods on the same side. A second guide rod used in cooperation with the second turntable is fixedly arranged in the middle of the bottom of the lifting frame. A limiting plate is fixedly arranged on the lifting frame. A number of symmetrically distributed M grooves are formed in the limiting plate. A sliding groove used in cooperation with the M grooves is formed in the lifting frame, and the limiting plate is slidably connected to the sliding groove. A second guide groove used in cooperation with the second guide rod is formed in the second turntable, and the end of the second guide rod slides in the second guide groove.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. By setting the welding synchronous positioning assembly, during the process of the lifting frame driving the welding device body to descend, the push rod is driven to push the corresponding temperature sensor towards the wire. While the push rod moves, the two positioning rods are driven to approach each other. Through the mutual cooperation of the push rod and the positioning rods, the pins of the temperature sensor are automatically spliced with the wire and the temperature sensor is clamped and fixed at the same time. After the splicing is completed, the welding device body welds the splicing joint, improving the welding quality and the accuracy of the welding point, and reducing the errors and instabilities caused by manual operation;

[0012] 2. By setting the wire intermittent conveying assembly and the sensor intermittent conveying assembly, the wire intermittent conveying assembly and the sensor intermittent conveying assembly respectively drive the temperature sensor and the lead wire to be conveyed intermittently and synchronously, improving the coherence of the overall welding production and thus improving the production efficiency;

[0013] 3. By setting up the wire synchronous positioning component in the present invention, two wires respectively enter the corresponding positions of the M groove. During the descending process of the limiting plate, it is inserted into the corresponding sliding groove in the fixed plate. As the descending degree of the limiting plate cooperates with the reduction of the space in the M groove, the two wires are driven to be adjusted along with the position of the M groove and are clamped and fixed. Through the above operations, the effects of positioning adjustment and clamping fixation of the wires are achieved, ensuring the stability of the wires during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[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 sectional structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the wire synchronous positioning component in the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the wire intermittent conveying component in the present invention;

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

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

[0021] Figure 7 It is a schematic diagram of the bottom view of the top plate in the present invention;

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

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

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

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

[0026] Figure 12 It is a schematic diagram of the structure of the second feeding frame in the present invention;

[0027] Figure 13 is Figure 2 An enlarged schematic view of the structure at position A in

[0028] Figure 14 is Figure 3 An enlarged schematic view of the structure at position B in

[0029] Figure 15 is Figure 7 An enlarged schematic view of the structure at position C in

[0030] In the figure: 1. Support frame; 2. Top plate; 3. Wire intermittent conveying assembly; 301. Fixed plate; 302. First cam; 303. Fixed bracket; 304. Sliding frame; 305. First turntable; 306. First guide groove; 307. First guide rod; 308. Fixed guide frame; 309. Lifting column; 310. Bottom plate; 311. Connecting frame; 312. First loading frame; 4. Sensor intermittent conveying assembly; 401. Fixed support plate; 402. Guide rail; 403. Sliding plate; 404. Lifting plate; 405. First fixed support rod; 406. Rotating rod; 407. Driving rod; 408. Second fixed support rod; 409. Transmission rod; 410. Second cam; 411. Third cam; 412. Swing rod; 413. Connecting shaft; 414. Return spring; 415. Second loading frame; 416. First roller; 417. Second roller; 418. Third roller; 5. Wire synchronous positioning assembly; 501. Second turntable; 502. Guide rod; 503. Lifting frame; 504. Second guide rod; 505. Second guide groove; 506. Limiting plate; 507. M groove; 508. Chute; 6. Top frame; 7. Welding synchronous positioning assembly; 701. First slide rail; 702. Lifting frame; 703. Second slide rail; 704. Push rod; 705. Driven rod; 706. Built-in fixed frame; 707. Third slide rail; 708. Positioning rod; 709. Guide post; 710. Slide plate; 711. Inclined groove; 712. Connecting plate; 713. Electric cylinder; 8. Welding device body; 9. Driving assembly; 901. Fixed frame; 902. Driving shaft; 903. Motor. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: As Figures 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, both of 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 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, a driving rod 407 is rotatably arranged at the other end of the rotating rod 406, a transmission rod 409 is rotatably arranged at the top end of the second fixed support rod 408, and the other end of the driving rod 407 is rotatably connected to the middle of the transmission rod 409. A second cam 410 for cooperating with the rotating rod 406 is fixedly sleeved on the outer wall of the driving shaft 902. A swing rod 412 is rotatably arranged on one side of the fixed frame 901 close to the second cam 410. A third cam 411 for cooperating with the swing rod 412 is fixedly sleeved on the outer wall of the driving shaft 902. A connecting shaft 413 is rotatably arranged 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. A second feeding frame 415 is fixedly arranged on the outer side of the lifting plate 404.

[0038] By adopting the above technical solution, the second feeding frame 415 performs periodic intermittent operation under the action of the second cam 410 and the third cam 411, and performs step-by-step intermittent conveying on the sensors.

[0039] The welding synchronous positioning assembly 7 includes four first slide rails 701 distributed in a rectangular array. The four first slide rails 701 are respectively fixedly installed on the inner wall of the top frame 6. A lifting frame 702 is slidably arranged on the first slide rails 701, and the welding device body 8 is fixedly connected to the lifting frame 702. A second slide rail 703 for cooperating with the lifting frame 702 is fixedly arranged at the top end of the top plate 2 on one side of the top frame 6. A push rod 704 is slidably arranged on the second slide rail 703. A driven rod 705 is rotatably arranged at the side of the push rod 704 away from the fixed plate 301 at the top end, and the other end of the driven rod 705 is rotatably connected to the lifting frame 702. An electric cylinder 713 is fixedly arranged in 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. An internal fixed frame 706 is fixedly arranged at the bottom end of the top plate 2 close to one side of the top frame 6. A sliding plate 710 is slidably arranged in the internal fixed frame 706. Two symmetrically distributed connecting plates 712 are fixedly arranged at the bottom end of the push rod 704, and the connecting plates 712 are fixedly connected to the sliding plate 710.

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

[0041] The wire synchronous positioning assembly 5 includes two symmetrically distributed second turntables 501, both of the two second turntables 501 are fixedly installed on the drive shaft 902, and two symmetrically distributed guide rods 502 are fixedly provided at the top ends of the two top plates 2. A lifting frame 503 is slidably arranged on the two guide rods 502 on the same side. In the middle of the bottom end of the lifting frame 503, a second guide rod 504 used in cooperation with the second turntable 501 is fixedly provided, and a limiting 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] In the middle of the top end of the built-in fixed frame 706, two symmetrically distributed third slide rails 707 are fixedly provided. A positioning rod 708 is slidably arranged on each of the two third slide rails 707. A guide post 709 is fixedly provided on the positioning rod 708. Two symmetrically distributed inclined slots 711 are formed on the sliding plate 710, and the guide post 709 slides in the inclined slots 711.

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

[0045] A first guide groove 306 used in cooperation with the first guide rod 307 is formed on the first turntable 305, and the end of the first guide rod 307 slides in the first guide groove 306.

[0046] By adopting the above technical solution, when the first turntable 305 rotates, the first guide rod 307 is driven to move through the first guide groove 306.

[0047] A return spring 414 is fixedly provided on 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 cooperation with the second cam 410 is rotatably arranged in the middle of the rotating rod 406. A second roller 417 is rotatably arranged at the end of the transmission rod 409, and the second roller 417 is slidably connected to the lifting plate 404. A third roller 418 used in cooperation with the third cam 411 is rotatably arranged 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 reset.

[0049] A number of symmetrically distributed M grooves 507 are formed on the limiting plate 506. A sliding groove 508 used in cooperation with the M grooves 507 is formed on the lifting frame 503, and the limiting plate 506 is slidably connected to the sliding groove 508. A second guide groove 505 used in cooperation with the second guide rod 504 is formed on the second turntable 501, and the end of the second guide rod 504 slides in the second guide groove 505.

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

[0051] Working principle: First, control the motor 903 to start. The driving end of the motor 903 drives the driving shaft 902 to rotate clockwise for one circle. During the rotation of the driving shaft 902, under the action of the second guide groove 505, the second guide rod 504 and the lifting frame 503, the second turntable 501 drives the limiting plate 506 to move upward under the action of the guide rod 502. After the limiting plate 506 finishes moving, at this time, the convex part of the first cam 302 contacts the bottom plate 310. The first cam 302 drives the two first loading 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 fixing plate 301. After the first loading frame 312 finishes rising, at this time, the first turntable 305 rotates and drives the lifting column 309 to move towards the welding device body 8 through the first guide groove 306, the first guide rod 307, and the fixed guide frame 308. After the lifting column 309 drives the first loading frame 312 to finish moving, the driving shaft 902 continues to rotate to drive the convex part of the first cam 302 to separate from the bottom plate 310. According to the above same steps, drive the first loading frame 312 to descend and place the wires at the corresponding positions on the fixing plate 301. After the first loading frame 312 finishes descending, the first turntable 305 rotates through the first guide groove 306 to drive the first loading frame 312 to reset. During the entire process of the movement of the first loading frame 312, the limiting plate 506 is always in the raised state under the action of the second guide groove 505. When the first loading frame 312 finishes moving, the second turntable 501 drives the limiting plate 506 to reset through the second guide groove 505. During the reset process of the limiting plate 506, the wires are positioned and clamped through the M groove 507 and the sliding groove 508 to ensure the stability of the wires during the welding process. While the driving shaft 902 rotates, it first drives the convex part of the second cam 410 to contact the first roller 416. The second cam 410 pushes the rotating rod 406 to flip upward with the connection point with the first fixed support rod 405 as the axis. The rotating rod 406 pushes the transmission rod 409 to flip upward with the connection point with the second fixed support rod 408 as the axis through the active rod 407. The transmission rod 409 drives the lifting plate 404 and the second loading frame 415 to move upward through the second roller 417. After the lifting plate 404 finishes rising, at this time, the convex part of the third cam 411 contacts the third roller 418. The third cam 411 drives the swing rod 412 to rotate clockwise with the rotation connection point 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 loading frame 415 to move away from the top frame 6 side under the guidance of the guide rail 402 through the connecting shaft 413 and stretches the return spring 414. After the sliding plate 403 finishes moving, the convex part of the second cam 410 separates from the first roller 416. According to the above same steps, drive the second loading frame 415 to descend. After the second loading frame 415 finishes descending, the convex part of the third cam 411 contacts and separates from the third roller 418. According to the above same steps, drive the second loading frame 415 to reset under the action of the return spring 414.In this way, it drives the first loading frame 312 and the second loading frame 415 to perform periodic reciprocating motions, achieving the effect of intermittent synchronous conveying of the wires and temperature sensors. When the temperature sensors and wires are synchronously and intermittently conveyed to directly below the welding device body 8, the control is used to turn on the electric cylinder 713, and the driving end extends to push the lifting frame 702 and the welding device body 8 to descend synchronously. At the same time, the driven rod 705 is used to push the push rod 704 to move under the guidance of the second slide rail 703. The push rod 704 drives the corresponding temperature sensor in the second loading frame 415 to move. During the movement of the push rod 704, the connecting plate 712 is used to drive the sliding plate 710 to slide in the built-in fixing frame 706. During the sliding of the sliding plate 710, the two positioning rods 708 are driven to approach each other through the inclined groove 711 and the guiding column 709. The push rod 704 pushes the lead of the temperature sensor to contact the corresponding wire. At this time, the two positioning rods 708 just closely fit against both sides of the temperature sensor to clamp and fix the temperature sensor. The welding head of the welding device body 8 just contacts the lead and the wire for welding. After welding is completed, the control is used to contract the driving end of the electric cylinder 713, and the push rod 704 and the two positioning rods 708 are driven to reset according to the same steps as above.

[0052] Obviously, those skilled in the art can make various modifications and variations 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 equivalent technologies, 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); The driving assembly (9) comprises a fixed frame (901), the fixed frame (901) 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; 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); 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).

2. A welding device for automobile exhaust temperature sensor 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).

3. 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).

4. A welding device for an automobile exhaust temperature sensor as claimed in claim 2, 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).

5. 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).

6. A welding device for automobile exhaust temperature sensor according to claim 1, 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).

7. A welding device for automobile exhaust temperature sensor as claimed in claim 3, 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).

Images