Welding device for automobile stamping parts

Abstract

The invention discloses a welding device for automobile stamping parts, and particularly relates to the technical field of automobile stamping part welding, the welding device comprises a mounting seat, a rotating mechanism is fixedly mounted at the bottom end of the mounting seat, an argon arc welding head is arranged at the bottom of the rotating mechanism, and a tungsten electrode needle head is detachably mounted at the bottom of the argon arc welding head; a grinding piece corresponding to a tungsten electrode needle head is fixedly installed on the top of the rotating mechanism, a feeding mechanism is fixedly installed on one side of the rotating mechanism, and a welding wire used in cooperation with an argon arc welding head is arranged in the feeding mechanism. The rotating mechanism comprises a rotating transverse frame, and the rotating transverse frame is fixedly mounted at the bottom end of the mounting base. The rotating mechanism is arranged and used in cooperation with the feeding mechanism, welding wires are automatically fed, and an argon arc welding head can automatically swing by a small angle to conduct forward swing type argon arc welding on automobile stamping parts; therefore, raised grain welding seams are formed on the automobile stamping part, and the welding effect of the automobile stamping part is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile stamping part welding, in particular to a welding device for automobile stamping parts. BACKGROUND

[0002] The automobile body is mainly composed of a vehicle body, a closure, an interior and exterior trim, and a body component, wherein the vehicle body is mostly composed of stamping parts, which are connected by welding, directly affecting the overall performance and safety of the automobile. Common automobile stamping part welding methods include spot welding, arc welding, laser welding, and friction welding, etc. Among them, arc welding is to heat metal parts by electric arc, such as gas shielded arc welding and tungsten argon arc welding. Argon arc welding is the most commonly used method for automobile stamping part welding, which generates an electric arc by using a non-melting tungsten electrode to heat the welded material, and uses inert gas (such as argon) to protect the welding area to prevent oxidation and contamination, and has good mechanical properties and corrosion resistance. However, when using the traditional automobile stamping part to weld by argon arc welding, it is mostly in the form of manually holding the argon arc welding head and filler bar. Manual welding may have quality problems and cause certain safety hazards to the operator, affecting the overall welding efficiency and quality of the automobile stamping part. Therefore, we propose a welding device for automobile stamping parts to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a welding device for automobile stamping parts to solve the problems raised in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a welding device for automobile stamping parts, comprising a mounting seat, a rotating mechanism is fixedly installed at the bottom end of the mounting seat, an argon arc welding head is arranged at the bottom of the rotating mechanism, a tungsten needle is detachably installed at the bottom of the argon arc welding head, a grinding piece corresponding to the tungsten needle is fixedly installed at the top of the rotating mechanism, a feeding mechanism is fixedly installed on one side of the rotating mechanism, and a welding wire for cooperating with the argon arc welding head is arranged in the feeding mechanism. The rotating mechanism comprises a rotating cross frame, the rotating cross frame is fixedly installed at the bottom end of the mounting seat, a rotating vertical frame is vertically installed at the bottom end of the rotating cross frame, a rotating bearing is fixedly clamped at the bottom of the rotating vertical frame, and the handle part of the argon arc welding head is fixedly clamped in the middle of the rotating bearing.

[0005] Preferably, the rotating mechanism further comprises a first worm gear, the first worm gear is fixedly clamped at the handle part of the argon arc welding head, a first worm shaft is meshingly connected to the outer side of the first worm gear, a first rotating seat is rotatably installed at the outer side of the first worm shaft, the first rotating seat is fixedly installed at the outer side of the rotating vertical frame, a first motor is fixedly installed on the side of the rotating vertical frame close to the first worm shaft, and the driving end of the first motor and the top end of the first worm shaft are fixedly installed.

[0006] Preferably, the grinding piece comprises lifting cylinders, which are symmetrically distributed, fixedly installed in the middle of the bottom end of the rotating cross frame, and the driving end of the lifting cylinder is fixedly installed with a grinding cross frame, the middle of the grinding cross frame is rotatably installed with a rotating cylinder, the top end of the rotating cylinder is integrally formed with a connecting head, the bottom end of the rotating cylinder is provided with an installation slot, the rotating cylinder is provided with a suction cavity, the suction cavity and the connecting head are in communication, the connecting head is fixedly clamped with a grinding frame, and the bottom end of the grinding frame is provided with a grinding slot corresponding to the tungsten needle.

[0007] Preferably, the middle of the outer side of the rotating cylinder is fixedly sleeved with a driven gear ring, the top end of the grinding cross frame is fixedly installed with a second motor, the driving end of the second motor is fixedly installed with a driving shaft, the bottom end of the driving shaft extends out of the bottom end of the grinding cross frame and is fixedly installed with a driving gear, and the driving gear and the driven gear ring are meshed and connected.

[0008] Preferably, the outer side of the grinding frame is provided with a plurality of dust collection grooves arranged in an annular array, the inner wall of the installation slot is provided with a plurality of groups of dust collection perforations corresponding to the dust collection grooves, the middle of the connecting head is fixedly clamped with a sealing rotating piece, and the middle of the sealing rotating piece is fixedly installed with a connecting pipe.

[0009] Preferably, the feeding mechanism comprises a connecting vertical frame, which is vertically installed on the side of the bottom end of the rotating cross frame away from the rotating vertical frame, the bottom of the connecting vertical frame is movably sleeved with a rotating sleeve seat, the bottom of the connecting vertical frame is fixedly installed with a rotating shaft, the rotating shaft is rotatably clamped in the middle of the rotating sleeve seat, the outer side of the rotating sleeve seat is fixedly installed with a fixed clamping sleeve, the middle of the fixed clamping sleeve is fixedly clamped with a supporting pipe, the supporting pipe is obliquely arranged, and the bottom of the supporting pipe is fixedly clamped with a positioning element.

[0010] Preferably, the positioning element comprises a positioning ring frame, which is fixedly clamped at the bottom of the supporting pipe, the positioning ring frame is provided as a hollow structure, the inner side of the positioning ring frame is slidably clamped with a plurality of positioning sliding frames arranged in an annular array, the opposite ends of the plurality of positioning sliding frames are movably clamped with conveying wheels, the middle of the inner cavity of the positioning ring frame is rotatably clamped with a driving ring disc used in cooperation with the plurality of positioning sliding frames, the lower surface of the driving ring disc is provided with a planar threaded protrusion, the upper surfaces of the plurality of positioning sliding frames are provided with planar threaded grooves used in cooperation with the planar threaded protrusion, the planar threaded protrusion is movably clamped in the planar threaded groove, the welding wire movably penetrates through the supporting pipe and the positioning ring frame, and the outer wall of the welding wire is in contact with the plurality of conveying wheels.

[0011] Preferably, a fourth motor is fixedly installed in one of the positioning sliding frames, a belt pulley transmission set is fixedly installed between the driving end of the fourth motor and the shaft end of the corresponding driving wheel, and the belt pulley transmission set comprises two belt pulleys and a transmission belt movably sleeved outside the two belt pulleys.

[0012] Preferably, a driving ring frame is fixedly installed in the middle of the upper surface of the driving ring disc, a third worm gear is fixedly installed on the outer side of the driving ring frame, a third worm is meshingly connected to the outer side of the third worm gear, auxiliary seats are rotatably installed at both ends of the third worm, the auxiliary seats are fixedly clamped in the inner cavity of the positioning ring frame, and one end of the third worm extends out of the outer side of the positioning ring frame.

[0013] Preferably, a second worm gear is fixedly installed at one end of the rotating shaft, a second worm is meshingly connected to the outer side of the second worm gear, a second rotating seat is rotatably installed on the outer side of the second worm, the second rotating seat is fixedly installed on the outer side of the rotating sleeve seat, a third motor is fixedly installed on the side of the rotating sleeve seat wall close to the second worm, and the driving end of the third motor is fixedly installed at one end of the second worm.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. By setting the rotating mechanism, the feeding mechanism is used in cooperation, the automatic feeding of the welding wire is realized, the automatic small-angle swinging of the argon arc welding head is realized, the forward swinging type argon arc welding is realized on the automobile stamping part, and the wave pattern welding seam is formed on the automobile stamping part, thereby improving the welding effect of the automobile stamping part.

[0015] 2. By setting the grinding part, the rotating mechanism is used in cooperation, the automatic grinding of the tungsten needle head by the grinding frame is realized, and the use effect of the subsequent tungsten needle head is improved.

[0016] 3. When the tungsten needle head is automatically ground, the dust suction pump is controlled to be turned on at the same time, the waste generated by automatic grinding is sucked into the suction cavity through the plurality of dust suction grooves and the plurality of groups of dust suction holes, and is sucked into the dust suction pump through the connecting pipe, so that the waste is automatically collected, and the environment is prevented from being affected by the waste.

[0017] 4. By setting the feeding mechanism, the angle of the supporting pipe and the positioning part is flexibly adjusted, so that the angle of the welding wire feeding is flexibly adjusted, and the flexibility of the entire welding device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the structural connection between the rotating mechanism and the argon arc welding head in the present invention.

[0021] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 Schematic diagram of the structure of the grinding piece in the present invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle.

[0024] Figure 6 It is a schematic diagram of the structural connection between the rotating cylinder and the grinding frame in the present invention.

[0025] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle.

[0026] Figure 8 It is a schematic diagram of the structural connection between the feeding mechanism and the welding wire in the present invention.

[0027] Figure 9 For the present invention Figure 8 Enlarged view of point D in the middle.

[0028] Figure 10 For the present invention Figure 9 Enlarged view of point E in the middle.

[0029] Figure 11 It is a schematic diagram of the structural connection of the fixed transport member in the present invention.

[0030] Figure 12 For the present invention Figure 11 Enlarged view of point F in the middle.

[0031] Figure 13 It is a schematic diagram of the structural connection between the positioning slide frame and the driving ring disk in the present invention.

[0032] In the figure: 1. Mounting base; 2. Rotating mechanism; 3. TIG welding head; 31. Tungsten electrode needle; 4. Grinding element; 5. Feeding mechanism; 6. Welding wire; 21. Rotating horizontal frame; 22. Rotating vertical frame; 23. Rotating bearing; 24. First worm gear; 25. First worm; 251. First rotating base; 26. First motor; 41. Lifting cylinder; 42. Grinding horizontal frame; 43. Rotating cylinder; 431. Connector; 401. Mounting slot; 402. Dust suction hole; 44. Grinding frame; 441. Grinding slot; 442. Dust suction slot; 45. Driven gear ring; 451. Second motor; 452. Drive shaft; 453. Driving gear; 46. Sealing rotating member; 461. Connecting pipe; 51. Connecting longitudinal frame; 511. Rotating shaft; 512. Second worm gear; 513. Second worm; 514. Second rotating seat; 515. Third motor; 52. Rotating sleeve; 521. Fixed sleeve; 53. Supporting pipe; 54. Fixed transmission member; 541. Positioning ring frame; 542. Positioning slide frame; 543. Output wheel; 5431. Pulley transmission group; 5432. Fourth motor; 544. Driving ring disk; 545. Driving ring frame; 546. Third worm gear; 547. Third worm; 5471. Auxiliary seat. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] Example: Figures 1-13 As shown, the present invention provides a welding device for automobile stamping parts, comprising a mounting base 1, a rotating mechanism 2 fixedly mounted on the bottom end of the mounting base 1, an argon arc welding head 3 provided at the bottom of the rotating mechanism 2, a tungsten electrode needle 31 detachably mounted on the bottom of the argon arc welding head 3, a grinding member 4 corresponding to the tungsten electrode needle 31 fixedly mounted on the top of the rotating mechanism 2, a feeding mechanism 5 fixedly mounted on one side of the rotating mechanism 2, and a welding wire 6 for use with the argon arc welding head 3 provided in the feeding mechanism 5; The rotating mechanism 2 comprises a rotating cross frame 21 fixedly installed at the bottom end of the mounting seat 1, a rotating vertical frame 22 vertically installed at the bottom end of the rotating cross frame 21, a rotating bearing 23 fixedly clamped at the bottom of the rotating vertical frame 22, and a handle part of the argon arc welding head 3 fixedly clamped at the middle part of the rotating bearing 23. The handle part of the argon arc welding head 3 is fixedly clamped at the middle part of the rotating bearing 23, so that the argon arc welding head 3 can be swung at a small angle at the bottom of the rotating vertical frame 22, thereby facilitating the subsequent automatic small-angle swinging of the argon arc welding head 3 to perform the forward swinging type argon arc welding on the automobile stamping part, so as to form a wave pattern weld on the automobile stamping part, improve the welding effect of the automobile stamping part, and facilitate the 180-degree overturning of the argon arc welding head 3 at the bottom of the rotating vertical frame 22.

[0035] The rotating mechanism 2 further comprises a first worm gear 24 fixedly clamped at the handle part of the argon arc welding head 3, a first worm shaft 25 meshingly connected to the outer side of the first worm gear 24, a first rotating seat 251 rotatably installed at the outer side of the first worm shaft 25, the first rotating seat 251 fixedly installed at the outer side of the rotating vertical frame 22, a first motor 26 fixedly installed at the side of the rotating vertical frame 22 close to the first worm shaft 25, and the driving end of the first motor 26 and the top end of the first worm shaft 25 fixedly installed. By controlling the first motor 26 to drive the first worm shaft 25 to drive the first worm gear 24 to rotate, the argon arc welding head 3 can be swung at a small angle at the bottom of the rotating vertical frame 22, or the argon arc welding head 3 can be overturned by 180 degrees at the bottom of the rotating vertical frame 22. A first cover is fixedly installed at the side end of the rotating vertical frame 22 to protect the first worm gear 24, the first worm shaft 25 and the first motor 26.

[0036] The grinding part 4 comprises lifting cylinders 41, which are symmetrically distributed, fixedly installed at the middle of the bottom end of the rotating cross frame 21, and the driving end of the lifting cylinders 41 is fixedly installed with a grinding cross frame 42, the middle of the grinding cross frame 42 is rotatably installed with a rotating cylinder 43, the top middle of the rotating cylinder 43 is integrally formed with a connecting head 431, the bottom middle of the rotating cylinder 43 is provided with an installation groove 401, the rotating cylinder 43 is provided with a suction cavity, the suction cavity and the connecting head 431 are in communication with each other, the connecting head 431 is fixedly clamped with a grinding frame 44, and the bottom middle of the grinding frame 44 is provided with a grinding groove 441 corresponding to the tungsten needle 31, when the tungsten needle 31 needs to be ground, first control the argon arc welding head 3 to perform 180-degree overturning at the bottom of the rotating vertical frame 22, overturn the tungsten needle 31 from the lowest position to the uppermost position, make the tungsten needle 31 and the grinding frame 44 vertically correspond in position, control the lifting cylinders 41 to drive the grinding cross frame 42, the rotating cylinder 43 and the grinding frame 44 to descend, make the tungsten needle 31 movably clamped in the corresponding grinding groove 441, and make the surface of the tungsten needle 31 contact the inner wall of the grinding groove 441.

[0037] The middle of the outer side of the rotating cylinder 43 is fixedly sleeved with a driven gear ring 45, the top end of the grinding cross frame 42 is fixedly installed with a second motor 451, the driving end of the second motor 451 is fixedly installed with a driving shaft 452, the bottom end of the driving shaft 452 extends out of the bottom end of the grinding cross frame 42 and is fixedly installed with a driving gear 453, the driving gear 453 and the driven gear ring 45 are meshed and connected, control the second motor 451 to drive the driving gear 453 to drive the driven gear ring 45 to rotate at high speed, so as to drive the rotating cylinder 43 and the grinding frame 44 to rotate at high speed, and then control the grinding frame 44 to automatically grind the tungsten needle 31, and improve the use effect of the subsequent tungsten needle 31.

[0038] The outer side of the grinding frame 44 is provided with a plurality of dust collection grooves 442 arranged in an annular array, the inner wall of the installation groove 401 is provided with a plurality of groups of dust collection perforations 402 corresponding to the dust collection grooves 442, the middle of the connecting head 431 is fixedly clamped with a sealing rotating part 46, and the middle of the sealing rotating part 46 is fixedly installed with a connecting pipe 461, by arranging the sealing rotating part 46, the sealing connection between the connecting head 431 and the connecting pipe 461 is not affected when the grinding frame 44 rotates at high speed, in use, the end of the connecting pipe 461 is connected with the suction port of the dust collection pump, and the tungsten needle 31 is automatically ground, the dust collection pump is controlled to be turned on at the same time, the waste generated by automatic grinding is sucked into the suction cavity through the plurality of dust collection grooves 442 and the plurality of groups of dust collection perforations 402, and is sucked into the dust collection pump through the connecting pipe 461.

[0039] The feeding mechanism 5 includes a connecting longitudinal frame 51, which is vertically installed on the bottom end of the rotating transverse frame 21 away from the rotating longitudinal frame 22, the bottom of the connecting longitudinal frame 51 movably sheaths a rotating sleeve seat 52, the bottom of the connecting longitudinal frame 51 is fixedly installed with a rotating shaft 511, the rotating shaft 511 is rotatably connected in the middle of the rotating sleeve seat 52, the outer side of the rotating sleeve seat 52 is fixedly installed with a fixed clamping sleeve 521, the fixed clamping sleeve 521 and the rotating sleeve seat 52 facilitate rotation on the outer side of the rotating shaft 511, the middle of the fixed clamping sleeve 521 is fixedly clamped with a support pipe 53, the support pipe 53 is obliquely arranged, the bottom of the support pipe 53 is fixedly clamped with a positioning element 54, by controlling the rotation of the fixed clamping sleeve 521 and the rotating sleeve seat 52 on the outer side of the rotating shaft 511, the support pipe 53 and the positioning element 54 are driven to rotate around the rotating shaft 511, the angle of the support pipe 53 and the positioning element 54 is flexibly adjusted, so as to flexibly adjust the angle of the welding wire 6 feeding, and the flexibility of the entire welding device is improved.

[0040] The positioning element 54 includes a positioning ring frame 541, which is fixedly connected to the bottom of the support pipe 53, the positioning ring frame 541 is arranged in a hollow structure, the inner side of the positioning ring frame 541 is slidably clamped with a plurality of positioning sliding frames 542 arranged in an annular array, the opposite ends of the plurality of positioning sliding frames 542 are movably clamped with a plurality of conveying wheels 543, the inner cavity of the positioning ring frame 541 is rotatably clamped with a driving ring disc 544 used in cooperation with the plurality of positioning sliding frames 542, the lower surface of the driving ring disc 544 is provided with a planar threaded protrusion, the upper surface of the plurality of positioning sliding frames 542 is provided with a planar threaded groove used in cooperation with the planar threaded protrusion, the planar threaded protrusion is movably clamped in the planar threaded groove, the welding wire 6 movably penetrates the support pipe 53 and the positioning ring frame 541, the outer wall of the welding wire 6 is in contact with the plurality of conveying wheels 543, the welding wire 6 movably penetrates the support pipe 53 and the positioning ring frame 541, so that the outer wall of the welding wire 6 is in contact with the plurality of conveying wheels 543, and the positioning of the welding wire 6 is realized.

[0041] One of the positioning sliding frames 542 is fixedly installed with a fourth motor 5432, a belt pulley transmission set 5431 is fixedly installed between the driving end of the fourth motor 5432 and the shaft end of the corresponding conveying wheel 543, the belt pulley transmission set 5431 includes two belt pulleys and a transmission belt movably sleeved on the outer sides of the two belt pulleys, the two belt pulleys are fixedly installed at the driving end of the corresponding fourth motor 5432 and the shaft end of the corresponding conveying wheel 543 respectively, by controlling the fourth motor 5432 to be turned on, the transmission of the belt pulley transmission set 5431 is matched, the corresponding conveying wheel 543 is driven to rotate, so as to automatically convey the welding wire 6, and the automatic feeding of the welding wire 6 is realized.

[0042] The upper middle part of the driving ring disc 544 is fixedly installed with a driving ring frame 545, the outer side of the driving ring frame 545 is fixedly installed with a third worm wheel 546, the outer side of the third worm wheel 546 is meshedly connected with a third worm 547, the both ends of the third worm 547 are rotatably installed with auxiliary seats 5471, the auxiliary seats 5471 are fixedly clamped in the inner cavity of the positioning ring frame 541, one end of the third worm 547 extends out of the outer side of the positioning ring frame 541, a manual tool is used to rotate the third worm 547 to drive the third worm wheel 546 to rotate, so as to drive the driving ring frame 545 and the driving ring disc 544 to rotate, the planar threaded protrusions are movably clamped in the planar threaded grooves, the multiple positioning sliding frames 542 and the driving wheels 543 are controlled to move towards each other, on the contrary, the third worm 547 is reversely rotated by using a manual tool to drive the third worm wheel 546 to rotate, so as to reversely drive the driving ring frame 545 and the driving ring disc 544 to rotate, the planar threaded protrusions are movably clamped in the planar threaded grooves, the multiple positioning sliding frames 542 and the driving wheels 543 are controlled to move away from each other, the spacing of the multiple driving wheels 543 is flexibly adjusted, and it is convenient to adapt to the positioning of the welding wire 6 with different outer diameters.

[0043] The one end of the rotating shaft 511 is fixedly installed with a second worm wheel 512, the outer side of the second worm wheel 512 is meshedly connected with a second worm 513, the outer side of the second worm 513 is rotatably installed with a second rotating seat 514, the second rotating seat 514 is fixedly installed on the outer side of the rotating sleeve seat 52, the third motor 515 is fixedly installed on the outer wall of the rotating sleeve seat 52 close to the side of the second worm 513, and the driving end of the third motor 515 and one end of the second worm 513 are fixedly installed.

[0044] Working principle: when in use, the whole welding device is fixedly installed on the output end of the manipulator through the mounting seat 1, the position of the welding device is adjusted by using the manipulator, and it is convenient to use the welding device to automatically perform argon arc welding on different positions of the automobile stamping part. Then, the end of the connecting pipe 461 is connected with the suction port of the dust collection pump, the welding wire 6 is movably penetrated through the supporting pipe 53 and the positioning ring frame 541, the outer wall of the welding wire 6 is in contact with the multiple driving wheels 543, and the welding wire 6 is positioned. Subsequently, the third motor 515 is controlled to be turned on to drive the second worm 513 to rotate. Since the second worm gear 512 and the second worm 513 are connected in meshing, the fixed sleeve 521 and the rotating sleeve 52 are controlled to rotate outside the rotating shaft 511, driving the support pipe 53 and the fixed conveying part 54 to rotate around the rotating shaft 511, so as to flexibly adjust the angle of the support pipe 53 and the fixed conveying part 54, so as to flexibly adjust the angle of the welding wire 6 feeding, until the angle is appropriate; Subsequently, the argon arc welding head 3 is turned on, and the fourth motor 5432 is controlled to be turned on at the same time, cooperating with the transmission of the belt pulley transmission group 5431, driving the corresponding conveying wheel 543 to rotate, so as to automatically convey the welding wire 6, automatically feed the welding wire 6, and perform argon arc welding on the automobile stamping part; During argon arc welding, the first motor 26 is controlled to be turned on to drive the first worm 25 to drive the first worm gear 24 to rotate, so as to drive the argon arc welding head 3 to swing at a small angle at the bottom of the rotating vertical frame 22, cooperate with the forward movement of the argon arc welding head 3 along the welding seam, and make the argon arc welding head 3 automatically swing at a small angle to perform forward swing type argon arc welding on the automobile stamping part, so as to form a wave pattern weld on the automobile stamping part, and improve the welding effect of the automobile stamping part; Among them, the third worm 547 is manually rotated by using a tool to drive the third worm gear 546 to rotate, so as to drive the driving ring frame 545 and the driving ring disc 544 to rotate, cooperate with the flat thread convex active clamping in the flat thread groove, control the multiple positioning sliding frames 542 and the conveying wheels 543 to move towards each other, and conversely, the third worm 547 is manually rotated by using a tool to drive the third worm gear 546 to rotate, so as to drive the driving ring frame 545 and the driving ring disc 544 to rotate in the opposite direction, cooperate with the flat thread convex active clamping in the flat thread groove, control the multiple positioning sliding frames 542 and the conveying wheels 543 to move away from each other, flexibly adjust the spacing of the multiple conveying wheels 543, and facilitate the adaptation to the positioning of welding wires 6 with different outer diameters; When the tungsten needle 31 needs to be ground, the first motor 26 is controlled to be turned on to drive the first worm 25 to drive the first worm gear 24 to rotate, driving the argon arc welding head 3 to overturn 180 degrees at the bottom of the rotating vertical frame 22, turning the tungsten needle 31 from the lowest position to the uppermost position, making the tungsten needle 31 and the grinding frame 44 vertically correspond in position, and controlling the lifting cylinder 41 to be turned on to drive the grinding horizontal frame 42, the rotating cylinder 43 and the grinding frame 44 to descend, making the tungsten needle 31 active clamping in the corresponding grinding groove 441, and making the surface of the tungsten needle 31 contact with the inner wall of the grinding groove 441; At the same time, the second motor 451 is controlled to be turned on to drive the driving gear 453 to drive the driven gear ring 45 to rotate at high speed, so as to drive the rotating cylinder 43 and the grinding frame 44 to rotate at high speed, and then control the grinding frame 44 to automatically grind the tungsten needle 31, improving the use effect of the subsequent tungsten needle 31; When the tungsten electrode needle 31 is automatically ground, the dust suction pump machine is synchronously controlled to be turned on. The waste generated by the automatic grinding is sucked into the suction cavity through the multiple dust suction grooves 442 and the multiple groups of dust suction holes 402, and is sucked into the dust suction pump machine through the connecting pipe 461, so that the waste is automatically collected and the environment is prevented from being affected by the waste.

[0045] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A welding device for automobile stamping parts, comprising a mounting seat (1), characterized in that: A rotating mechanism (2) is fixedly mounted on the bottom end of the mounting seat (1), an argon arc welding head (3) is provided at the bottom of the rotating mechanism (2), a tungsten electrode needle (31) is detachably mounted on the bottom of the argon arc welding head (3), a grinding piece (4) corresponding to the tungsten electrode needle (31) is fixedly mounted on the top of the rotating mechanism (2), a feeding mechanism (5) is fixedly mounted on one side of the rotating mechanism (2), and a welding wire (6) for use with the argon arc welding head (3) is provided in the feeding mechanism (5); The rotating mechanism (2) comprises a rotating horizontal frame (21), the rotating horizontal frame (21) is fixedly mounted on the bottom end of the mounting seat (1), a rotating vertical frame (22) is vertically mounted on the bottom end of the rotating horizontal frame (21), a rotating bearing (23) is fixedly clamped on the bottom of the rotating vertical frame (22), and a handle portion of the argon arc welding head (3) is fixedly clamped on the middle portion of the rotating bearing (23).

2. A welding device for automobile stamping parts according to claim 1, characterized in that: The rotating mechanism (2) further comprises a first worm gear (24), the first worm gear (24) being fixedly connected to the handle portion of the argon arc welding head (3), the outer side of the first worm gear (24) being meshedly connected to the first worm (25), the outer side of the first worm (25) being rotatably mounted with a first rotating seat (251), the first rotating seat (251) being fixedly mounted on the outer side of the rotating longitudinal frame (22), the side of the rotating longitudinal frame (22) close to the first worm (25) being fixedly mounted with a first motor (26), the driving end of the first motor (26) being fixedly mounted to the top end of the first worm (25).

3. The welding device for automobile stamping parts according to claim 1, characterized in that: The grinding member (4) includes a lifting cylinder (41), two of which are symmetrically distributed. The lifting cylinder (41) is fixedly mounted on the middle of the bottom end of the rotating cross frame (21), and a grinding cross frame (42) is fixedly mounted on the driving end of the lifting cylinder (41). A rotating cylinder (43) is rotatably mounted on the middle of the grinding cross frame (42). A connector (431) is integrally formed at the middle of the top end of the rotating cylinder (43). A mounting groove (401) is provided at the middle of the bottom end of the rotating cylinder (43). A suction cavity is provided in the rotating cylinder (43), and the suction cavity and the connector (431) are communicated with each other. A grinding frame (44) is fixedly mounted in the connector (431), and a grinding groove (441) corresponding to the tungsten electrode needle (31) is provided at the middle of the bottom end of the grinding frame (44).

4. The welding device for automobile stamping parts according to claim 3, characterized in that: A driven gear ring (45) is fixedly mounted on the middle portion of the outer side of the rotating cylinder (43); a second motor (451) is fixedly mounted on the top end of the grinding cross frame (42); a driving shaft (452) is fixedly mounted on the driving end of the second motor (451); a driving gear (453) is fixedly mounted on the bottom end of the driving shaft (452) extending out of the bottom end of the grinding cross frame (42); and the driving gear (453) is meshedly connected to the driven gear ring (45).

5. The welding device for automobile stamping parts according to claim 3, characterized in that: The outer side of the grinding frame (44) is provided with a plurality of dust suction grooves (442) distributed in a circular array, the inner wall of the installation groove (401) is provided with a plurality of dust suction perforations (402) corresponding to the dust suction grooves (442), the middle part of the connector (431) is fixedly provided with a sealing rotating part (46), and the middle part of the sealing rotating part (46) is fixedly provided with a connecting pipe (461).

6. The welding device for automobile stamping parts according to claim 1, characterized in that: The feeding mechanism (5) includes a connecting longitudinal frame (51), and the feeding mechanism (5) is vertically mounted on a side of the bottom end of the rotating horizontal frame (21) away from the rotating longitudinal frame (22). The bottom movable sleeve of the connecting longitudinal frame (51) is provided with a rotating sleeve (52). The bottom of the connecting longitudinal frame (51) is fixedly mounted with a rotating shaft (511), and the rotating shaft (511) is rotatably clamped in the middle of the rotating sleeve (52). A fixed clamping sleeve (521) is fixedly mounted on the outer side of the rotating sleeve (52). A support tube (53) is fixedly clamped in the middle of the fixed clamping sleeve (521). The support tube (53) is arranged obliquely, and a fixed feed piece (54) is fixedly clamped at the bottom of the support tube (53).

7. The welding device for automobile stamping parts according to claim 6, characterized in that: The fixed transport member (54) includes a positioning ring frame (541), the positioning ring frame (541) is fixedly clamped on the bottom of the support tube (53), the positioning ring frame (541) is set as a hollow structure, the inner side sliding clamp of the positioning ring frame (541) is provided with a plurality of positioning sliding frames (542) distributed in a ring array, the opposite ends of the plurality of positioning sliding frames (542) are movably clamped with a driving wheel (543), the middle part of the inner cavity of the positioning ring frame (541) is rotatably clamped with a driving ring disk (544) used in conjunction with the plurality of positioning sliding frames (542), the lower surface of the driving ring disk (544) is provided with a plane thread protrusion, the upper surfaces of the plurality of positioning sliding frames (542) are provided with a plane thread groove used in conjunction with the plane thread protrusion, the plane thread protrusion is movably clamped in the plane thread groove, the welding wire (6) movably passes through the support tube (53) and the positioning ring frame (541), and the outer wall of the welding wire (6) contacts the plurality of driving wheels (543).

8. The welding device for automobile stamping parts according to claim 7, characterized in that: A fourth motor (5432) is fixedly installed in one of the positioning slide frames (542), and a pulley transmission group (5431) is fixedly installed between the driving end of the fourth motor (5432) and the shaft end of the corresponding output wheel (543). The pulley transmission group (5431) includes two pulleys and a transmission belt movably sleeved on the outside of the two pulleys. The two pulleys are respectively fixedly installed on the driving end of the corresponding fourth motor (5432) and the shaft end of the corresponding output wheel (543).

9. The welding device for automobile stamping parts according to claim 7, characterized in that: A driving ring frame (545) is fixedly mounted on the middle part of the upper surface of the driving ring disk (544), a third worm gear (546) is fixedly mounted on the outer side of the driving ring frame (545), a third worm gear (547) is meshedly connected to the outer side of the third worm gear (546), and auxiliary seats (5471) are rotatably mounted on both ends of the third worm gear (547), the auxiliary seat (5471) is fixedly clamped in the inner cavity of the positioning ring frame (541), and one end of the third worm gear (547) extends out of the outer side of the positioning ring frame (541).

10. The welding device for automobile stamping parts according to claim 6, characterized in that: A second worm gear (512) is fixedly mounted on one end of the rotating shaft (511), a second worm gear (513) is meshedly connected to the outer side of the second worm gear (512), a second rotating seat (514) is rotatably mounted on the outer side of the second worm gear (513), the second rotating seat (514) is fixedly mounted on the outer side of the rotating sleeve (52), a third motor (515) is fixedly mounted on a side of the outer wall of the rotating sleeve (52) close to the second worm gear (513), and a driving end of the third motor (515) is fixedly mounted to one end of the second worm gear (513).

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