CN115365733A

CN115365733A - Welding gun rotary type automobile silencer hook welding device and welding method thereof

Info

Publication number: CN115365733A
Application number: CN202211073438.3A
Authority: CN
Inventors: 吴志坤; 沈海波; 王永前
Original assignee: Foshan Shunde Scien Tech Industrial Co ltd
Current assignee: Foshan Shunde Scien Tech Industrial Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-11-22

Abstract

The invention relates to the field of welding of automobile silencers, in particular to a welding gun rotary type automobile silencer hook welding device and a welding method thereof. The hook and the base part are fixed through the fixture device, the welding gun is welded in a rotating mode, the condition of non-coaxial is avoided, meanwhile, the welding gun has a multi-rotation and multi-adjustment structure, the welding gun can be accurately aligned to the gap between the hook and the base part for welding, the welding precision is high, the welded seam is uniform and flat, and the welding quality is consistent.

Description

Welding gun rotary type automobile silencer hook welding device and welding method thereof

Technical Field

The invention relates to the field of welding of automobile silencers, in particular to a welding gun rotary type automobile silencer hook welding device and a welding method thereof.

Background

Automobile muffler generally includes base portion and couple, in process of production, generally weld or welding equipment welding through manual welding, and current automobile muffler's couple welding equipment, it removes to adopt a part usually, another part is fixed, adopt welder fixed still a bit, the work piece removes and welds, its anchor clamps press from both sides tight fixed couple and base portion from top to bottom, then anchor clamps remove and weld, adopt welder to remove a bit, two work piece holder are fixed, these welded removal, most are just rectilinear movement, adopt the rotation type a bit, also only single rotation, the whole flexibility ratio that uses is relatively poor. If the welding quality required by mechanical equipment is not achieved, manual repair welding or other repair welding equipment procedures are adopted.

Especially, worker's welder welds the couple of muffler and the laminating department of base portion, adopt welder fixed still a bit, anchor clamps press from both sides tight two work piece spin welding, because couple and base portion are irregularly shaped structure, couple and base portion can produce the disalignment condition when rotatory, make the junction can not keep closely laminating all the time, and welder receives position limitation, do not have many rotations, the structure of many regulations, the flexibility ratio is low, can not freely adjust wantonly according to the demand, the welder rifle head can not accurately aim at the laminating department welding between couple and the base portion, welding precision is poor, and the rotation of anchor clamps also leads to couple and base portion to rock the skew easily, cause to weld partially, the insecure phenomenon of welding, influence welding quality, muffler quality after the welding is poor, the rejection rate is high.

Although manual welding can accurately aim at the joint of the base part and the hook for repair welding, because welding is needed on the arc surface, in the welding process, manual work is difficult to always keep the welding gun head and the welding position to form a certain angle and tightly adhere and weld, the welded seam is easily uneven, the welding quality is inconsistent, and the working efficiency is also influenced.

Disclosure of Invention

The invention provides a welding gun multi-rotation type and multi-adjustment type automobile silencer hook welding device and a welding method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a welding gun rotary type automobile silencer hook welding device and a welding method thereof comprise a base and a clamp device, and are characterized in that: the welding gun is characterized in that a supporting rod is arranged on the base, a gas-electricity integrated sliding ring, a bottom plate and a rotating mechanism are sequentially arranged on the supporting rod from bottom to top, the rotating mechanism comprises a rotating disk and a rotating arm, the rotating disk is arranged on the supporting rod, the center of the rotating disk is fixedly connected with an installation sleeve, a bearing is arranged in the installation sleeve and connected with the supporting rod, one end of the rotating arm is fixedly connected with the installation sleeve, the other end of the rotating arm is provided with a sliding block, an adjusting mechanism and a welding gun are arranged on the sliding block, a servo speed reduction motor is arranged on the bottom plate, and the servo speed reduction motor is in transmission connection with the rotating disk;

the fixture device comprises a hook fixing mechanism and a base part fixing mechanism, wherein the base part fixing mechanism is located at the top of the supporting rod, the hook and the base part are clamped, fixed and attached by the fixture device, and the servo speed reduction motor drives the rotating disk and the rotating arm to synchronously rotate, so that the welding gun is welded around the attaching position of the hook and the base part.

The rotary disk is provided with an outer toothed turntable bearing and an annular protective cover, the inner ring of the outer toothed turntable bearing is connected with the supporting rod, the outer ring of the outer toothed turntable bearing is connected with the rotary disk, the output shaft of the servo speed reduction motor is provided with a driving gear, the driving gear is in transmission connection with the outer toothed turntable bearing, and the driving gear and the outer toothed turntable bearing are located in the annular protective cover.

The rotary arm is provided with a slide rail, a moving cylinder is arranged below the slide rail, the slide block is positioned on the slide rail, a piston rod of the moving cylinder is connected with the slide block, and the moving cylinder is used for driving the slide block to move on the slide rail;

preferably, the adjusting mechanism further comprises a first support and a first rack column, the first rack column is arranged on the sliding block along the vertical direction, a first rack is arranged on the first rack column, the first support is sleeved on the first rack column, a second support is further arranged on the first support, the first support is rotatably connected with the second support, the second support is provided with a second rack column which is transversely arranged, the second rack column is provided with a second rack, a fixing frame is arranged at the end of the second rack column, an angle adjusting support is arranged in the fixing frame and is rotatably connected with the fixing frame, and the welding gun position is fixedly connected to the angle adjusting support;

the first support is provided with a first knob, the first knob is provided with a first adjusting gear which is connected with the first rack in a matched mode, the first support is further provided with a first mounting groove and a first bolt, the second support is provided with a second knob, and the second knob is provided with a second adjusting gear which is connected with the second rack in a matched mode.

Preferably, base portion fixed establishment includes connecting plate and anchor clamps base, connecting plate fixed connection is on the bracing piece top, be equipped with connecting rod joint fixture base on the connecting plate, anchor clamps base both sides are equipped with arm lock one, arm lock one rotates with the anchor clamps base to be connected, all be equipped with the briquetting of laminating with base portion convex surface on the arm lock one of both sides, still be equipped with double-end cylinder under the anchor clamps base, the double-end cylinder both sides all are equipped with the piston rod, the piston rod and the both sides arm lock one of double-end cylinder's both sides are connected, still be equipped with the fixed block of laminating with base portion concave surface on the anchor clamps base, still be equipped with cylinder two on the anchor clamps base, the fixed block side still is equipped with the through-hole, be equipped with the stopper on the piston rod of cylinder two, cylinder two drive stoppers stretch out and draw back in the through-hole of fixed block and remove.

The improved clamp is characterized in that a support frame is further arranged on the bottom plate, a top plate is arranged on the support frame, the hook fixing mechanism is provided with a connecting seat and a third air cylinder, the connecting seat is fixedly connected below the top plate, a positioning block and a second clamping arm are arranged below the connecting seat, a clamping block is arranged at one end of the second clamping arm, the other end of the second clamping arm is connected with the third air cylinder, the second clamping arm is further rotatably connected with the connecting seat, and clamping grooves matched with the hooks are formed in the positioning block and the clamping block.

The rotary disk is also provided with a wire reel, a wire feeder and a wiring terminal box, and the wire feeder comprises a welding wire input end, a wire feeding roller and a welding wire output end.

Specifically, the welding gun, the movable cylinder and the wire feeder are respectively electrically connected with a wiring terminal box, and the wiring terminal box is electrically connected with the gas-electricity integrated slip ring.

A welding method of a welding gun rotary type automobile silencer hook welding device comprises the following steps:

s1: the base part is placed on the fixed block, the piston rod of the double-head cylinder extends, the clamping arms on two sides of the clamp base drive the pressing block to tightly press and fix the base part, the hook is placed on the clamping groove of the positioning block, the piston rod of the cylinder three extends, the clamping arm two drives the clamping block to tightly clamp and fix the hook, and the hook is tightly attached to the base part after being fixed;

s2: firstly, roughly adjusting the position of a welding gun through a first support and a moving air cylinder, then rotating a second support and an angle adjusting support to adjust the welding angle of the welding gun, and finally screwing a first knob and a second knob to finely adjust the position of the welding gun so that the head of the welding gun is accurately aligned with the joint of a hook and a base part;

s3: the wire feeder conveys welding wires, the servo speed reduction motor drives the rotating disk and the rotating arm to rotate synchronously, the rotating arm drives the welding gun to rotate, and the welding gun welds 360 degrees around the joint of the hook and the base part at a constant speed.

The invention has the following beneficial effects:

1. couple fixed establishment and base portion fixed establishment cooperation are used, with couple and base portion laminating and clamping fixed, rethread servo gear motor control welder rotation rate, make welder at the uniform velocity around couple and the rotatory welding of base portion laminating department, avoid traditional work piece rotation mode couple and base portion to rock and the disalignment condition to appear, couple and base portion can remain closely the laminating throughout among the welding process, the welding seam after the welding is even level and smooth, welding quality is unanimous, avoid welding partially, the insecure phenomenon of welding, effectively improve muffler welding quality, the rejection rate is reduced, the manufacturing cost of enterprises is saved.

2. The welding gun can roughly adjust the position of the welding gun through the first support and the moving cylinder, the position of the welding gun is accurately adjusted through the first knob and the second knob, the second support and the angle adjusting support can rotate, the welding gun head is accurately aligned to the joint of the hook and the base, and meanwhile the best welding angle is kept for welding. Welder has a plurality of rotatory angle modulation and position control structure, its welder flexibility ratio height, can freely adjust welder position and angle as required, adjusts accurate height, and the governing speed is fast, further promotes welding quality and production efficiency.

3. The welding method based on the device is very applicable, effective and simple, and the silencer seat part and the hook are automatically and accurately welded.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 1.

Fig. 5 is a perspective view of the bottom plate and the top plate.

Fig. 6 is a schematic structural view of the rotating mechanism.

Fig. 7 is a front view of the rotary mechanism.

Fig. 8 is a top view of the rotating mechanism and the base plate.

Fig. 9 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 8.

Fig. 10 is a perspective view of the welding gun and the adjustment mechanism.

Fig. 11 is an enlarged view of B in fig. 10.

Fig. 12 is a front view of fig. 10.

Fig. 13 is a top view of fig. 12.

Fig. 14 is a perspective view of the welding gun and the adjusting mechanism.

FIG. 15 is a schematic view of the clamp device and hook and base portion configuration.

Fig. 16 is an enlarged view of C in fig. 15.

Fig. 17 is a front view of the clamp device.

FIG. 18 is a side view of the clamp device.

In the figure: 1-a base; 2-a support rod; 3-rotating the disc; 4, a first bracket; 5-a clamp base; 6-a connecting seat; 7-a welding gun; 8-hanging hooks; 9-a base part; 11-gas-electric integrated slip ring; 12-a base plate; 13-an annular protective cover; 14-a support frame; 15-a top plate; 16-a servo gear motor; 31-mounting the sleeve; 32-a rotating arm; 33-a slide block; 34-a wire reel; 35-a wire feeder; 36-external tooth turntable bearing; 37-a connection terminal box; 40-bracket two; 41-rack column one; 42-knob one; 43-rack post two; 44-knob two; 45-adjusting a second gear; 46-a fixed mount; 47-angle adjustment support; 48-a locking block; 49-adjusting the bolt; 51-a connecting plate; 52-a connecting rod; 53-a first clamping arm; 54-double-head cylinder; 55-cylinder two; 56-fixed block; 61-a positioning block; 62-a second clamping arm; 63-cylinder three; 64-a clamping block; 91-a limiting hole; 161-a drive gear; 321-a slide rail; 322-a moving cylinder; 351-a welding wire input end; 352-wire feed rollers; 353-a welding wire output mechanism; 401-bolt one; 531-briquetting.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "lateral", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, an automobile muffler hook welding device includes a base 1 and a clamping device, a support rod 2 is arranged on the base 1, the support rod 2 is sequentially provided with a pneumatic-electric integrated slip ring 11, a bottom plate 12 and a rotating mechanism from bottom to top, the rotating mechanism includes a rotating disk 3 and a rotating arm 32, the rotating disk 3 is arranged on the support rod 2, the rotating disk 3 is fixedly connected with a mounting sleeve 31, a wire reel 34 and a wire feeder 35, the mounting sleeve 31 is located at the center of the rotating disk 3, a bearing is further arranged in the mounting sleeve 31 and rotatably connected with the support rod 2, one end of the rotating arm 32 is fixedly connected with the mounting sleeve 31, as shown in fig. 6-9, an external-tooth turntable bearing 36 is arranged below the rotating disk 3, a servo reducing motor 16 is fixed on the bottom plate 12, a driving gear 161 is arranged on an output shaft of the servo reducing motor 16, an outer ring of the external-tooth turntable bearing 36 is connected with the rotating disk 3, an inner ring is connected with the support rod 2, the driving gear 161 is meshed with an outer ring of the external-tooth turntable bearing 36, and the rotating disk 3 and the rotating arm 32 is driven to synchronously rotate by the servo reducing motor.

Referring to fig. 10 and fig. 12 to 14, a slide rail 321 is disposed at the other end of the rotating arm 32, a slide block 33 is disposed on the slide rail 321, a moving cylinder 322 is further disposed below the slide block 33, a piston rod of the moving cylinder 322 is connected with the slide block 33, an adjusting mechanism and a welding gun 7 are disposed on the slide block 33, the adjusting mechanism includes a first support 4 and a first rack post 41, the first rack post 41 is disposed on the slide block 33 in the vertical direction, the first support 4 is sleeved on the first rack post 41, a second support 40 is further disposed on the first support 4, the first support 4 is further provided with an adjusting bolt 49 rotatably connected with the second support 40, a second rack post 43 transversely disposed is inserted in the second support 40, a fixing frame 46 is disposed at an end of the second rack post 43, an angle adjusting support 47 is inserted in the fixing frame 46, the angle adjusting support 47 can rotate 360 ° in the fixing frame 46, a locking block 48 is further disposed on the angle adjusting support 47, and the welding gun 48 presses the welding gun 7 and is locked on the angle adjusting support 47 through the bolt.

Specifically, the angle of the welding gun 7 is adjusted by loosening the adjusting bolt 49, rotating the second support 40 and locking and fixing the second support 40 through the adjusting bolt 49, so that the first angle adjustment of the welding gun 7 is realized; the fixing frame 46 is further provided with an opening, the size of the opening can be adjusted through bolts, the angle adjusting support 47 is loosened or fixed, the angle adjusting support 47 is rotated, the angle of the welding gun 7 is adjusted, the angle rotating support 47 is locked and fixed, and the secondary angle adjustment of the welding gun 7 is completed. In addition, the locking block 48 can be loosened to adjust the fixed angle of the welding gun 7, so that the angle adjustment of the welding gun 7 for the third time is realized, the welding gun 7 has a structure with a plurality of rotating angles, and the angle of the welding gun 7 can be freely adjusted.

Referring to fig. 11, a first rack is disposed on a first rack column 41, a second rack is also disposed on a second rack column 43, a first knob 42 is disposed on the bracket 4, a first adjusting gear (not shown) is disposed on the first knob 42 and is engaged with the first rack, a second knob 44 is disposed on the second bracket 40, a second adjusting gear 45 is disposed on the second knob 44 and is engaged with the second rack, the first knob 42 is screwed, the first bracket 4 is lifted or lowered along the first rack column 41 to adjust the height of the welding gun 7, the second knob 4 is screwed, the second rack column 43 moves laterally to adjust the lateral position of the welding gun 7, and when the first knob 42 and the second knob 44 adjust the position of the welding gun 7, the welding gun 7 moves a small distance, which is fine adjustment, and can accurately adjust the welding position of the welding gun 7 to ensure welding accuracy.

Still be equipped with mounting groove one and bolt 401 on support 4, still be equipped with the guide way on support 4, be equipped with in the mounting groove one with guide way matched with guide block, guide way and guide block can only follow rack post 41 when making support 4 remove, avoid support 4 to take place to rotate simultaneously, mounting groove two has also been seted up on support two 40, be equipped with the chimb on rack post two 43, the rack is two in the chimb, its chimb is located mounting groove two, make rack post two 43 can only follow lateral shifting, prevent rack post two 43 from rotating, welder position control's accuracy nature has been guaranteed (mounting groove one, do not mark in mounting groove two and the guide way picture).

In addition, the size of the first mounting groove can be adjusted by the first bolt 401, the first bolt 401 can be unscrewed, the first mounting groove is enlarged, the clamping force between the first support 4 and the first rack column 41 is reduced, and the first support 4 can rapidly move up and down on the first rack column 41, so that the effect of roughly adjusting the height of the welding gun 7 is achieved.

The fixture device comprises a hook fixing mechanism and a base portion fixing mechanism, please refer to fig. 1 and 15, the base portion fixing mechanism comprises a connecting plate 51 and a fixture base 5, the connecting plate 51 is fixedly connected to the top end of the supporting rod 2, the connecting plate 51 is provided with a connecting rod 52 connected with the fixture base 5, two sides of the fixture base 5 are respectively provided with a first clamping arm 53, the first clamping arm 53 is rotatably connected with the fixture base 5, two sides of the first clamping arm 53 are respectively provided with a pressing block 531 attached to the convex surface of the base portion 9, a fixing block 56 attached to the concave surface of the base portion 9 is arranged between the first clamping arms 53, the fixture base 5 is further provided with a double-head cylinder 54, two sides of the double-head cylinder 54 are respectively provided with a piston rod, and the piston rods of the double-head cylinder are connected with the first clamping arms 53.

Specifically, still be equipped with two 55 cylinders on the anchor clamps base 5, the fixed block 56 side is equipped with the through-hole (not drawn in the picture), be equipped with the stopper on two 55 piston rods of cylinder, two 55 piston rods of cylinder are located the through-hole, two 55 cylinders are used for driving the stopper and move in the through-hole is flexible, when base portion 9 places on fixed block 56, the piston rod extension of two 55 cylinders, the stopper blocks spacing hole 91 on the base portion 9 side, position base portion 9 is on fixed block 56, double-end cylinder 54 starts, both sides piston rod extends simultaneously, both sides arm lock 53 rotates around the tie point with anchor clamps base 5, drive briquetting 531 and compress tightly fixed base portion 9, accomplish the fixed of base portion 9. When the double-head air cylinder 54 needs to be taken down, the piston rods on the two sides of the double-head air cylinder 54 contract simultaneously, the pressing block 531 is separated from the base portion 9, then the piston rods of the second air cylinder 55 contract to drive the limiting blocks to withdraw from the limiting holes 91, and the fixing of the base portion 9 is released.

Referring to fig. 1, 5, 17 and 18, four corners of the bottom plate 12 are provided with support frames 14, the support frame 14 is provided with a top plate 15, the hook fixing mechanism is provided with a connecting seat 6 and a third cylinder 63, the connecting seat 6 is detachably connected below the top plate 15, a positioning block 61 and a second clamping arm 62 are arranged below the connecting seat 6, the second clamping arm 62 is rotatably connected with the connecting seat 6, one end of the second clamping arm 62 is connected with the third cylinder 63, the other end of the second clamping arm is provided with a clamping block 64, the positioning block 61 and the clamping block 64 are used in cooperation, clamping grooves (not shown in the figure) are formed in the positioning block 61 and the clamping block 64, and the clamping grooves are matched with the hooks 8. As shown in fig. 16, when the hook is fixed, the hook 8 is placed on the clamping groove of the positioning block 61, the protruding part of the head part of the hook 8 clamps the end surface of the clamping groove, the piston rod of the positioning hook 8 and the cylinder III 63 extends, and the clamping arm II 62 rotates around the connecting point with the connecting seat 6 to drive the clamping block 64 to be attached to the positioning block 61, so that the effective positioning and clamping fixation of the hook 8 are realized. When the hook needs to be taken down, the piston rod of the air cylinder III 63 contracts, the clamping arm II 62 drives the clamping block 64 to separate from the positioning block 61, and the fixed hook 8 is loosened and clamped.

The hook fixing mechanism is arranged above the base part fixing structure, during welding, the base part 9 is positioned, pressed and fixed through the base part fixing mechanism, then the hook 8 is positioned, clamped and fixed through the hook fixing mechanism, the hook 8 after positioning and fixing can be tightly attached to the base part 9, the vertical height of the welding gun 7 is roughly adjusted through the first support 4, the sliding block 33 is driven to move by the moving air cylinder 322, the welding gun 7 moves along the sliding rail 321, the transverse position of the welding gun 7 is roughly adjusted, the welding gun 7 enters a rough welding position, then the second support 40 and the angle adjusting support 47 are rotated, the angle of the welding gun is adjusted, finally the first knob 42 and the second knob 44 finely adjust the position of the welding gun 7, the gun head of the welding gun 7 can be accurately aligned to the attaching position of the hook 8 and the base part 9, and the optimal welding angle is kept. Welder 7 has the adjustment mechanism of a plurality of positions and angle, and its welding position and welding angle can freely be adjusted, satisfy the gap welding between alignment couple and the base portion, adjust welder 7's position through coarse adjusting and fine adjustment cooperation, and it is convenient, accurate, weak point consuming time to adjust.

Referring to fig. 7, the servo deceleration motor 16 drives the rotating disk 3 and the rotating arm 32 to rotate synchronously, the rotating arm 32 drives the welding gun 7 to rotate, the rotation speed of the welding gun 7 is controlled by the servo deceleration motor 16, so as to accurately control the welding speed of the welding gun 7, the wire feeder 35 includes a welding wire input end 351, a wire feeding roller 352, a welding wire output end 353, and a motor (not shown in the figure), the welding gun 7 employs a carbon dioxide welding gun, a wire feeding hose of the welding gun 7 is connected with the welding wire output end 353, the motor drives the wire feeding roller 352 to rotate, the welding wire on the welding wire disk 34 enters the wire feeding roller 352 from the welding wire input end 351 to be extruded and conveyed, and then enters the wire feeding hose of the welding gun 7 through the welding wire output end 353, and the wire discharging speed of the welding gun 7 is controlled by the wire feeder 35.

Specifically, the outer tooth type turntable bearing 36 adopts an outer tooth type four-point contact ball turntable bearing, the welding gun 7, the wire feeder 35, the moving cylinder 322 and the terminal box 37 are electrically connected, and the terminal box 37 and the gas-electricity integrated slip ring 11 are electrically connected, so that the electric wire winding is avoided, and the 360-degree rotation of the welding gun 7 is realized. As shown in fig. 4, the hook 8 and the base part 9 are firmly fixed and tightly attached by the fixture device, the servo gear motor 16 drives the welding gun 7 to rotate, so that the welding gun 7 rotates 360 degrees around the attachment part of the hook 8 and the base part 9 for welding, the welding gun 7 is discharged at a constant speed and does not shake in the welding process, the welded welding seam is even and flat, and the welding quality is consistent.

The driving gear 161 and the outer toothed turntable bearing 36 are located in the annular protective cover 13, the annular protective cover 13 seals and protects the driving gear 161 and the outer toothed turntable bearing 36, welding slag is prevented from entering the transmission mechanism to damage the driving gear 161 and the outer toothed turntable bearing 36, the welding gun 7 is guaranteed to rotate stably, and welding stability is guaranteed.

A welding method of a welding gun rotary type automobile silencer hook welding device based on the device comprises the following steps:

s1: the base part 9 is placed on the fixing block 56, a piston rod of the second air cylinder 55 extends, a limiting block blocks a limiting hole 91 on the side face of the base part 9, the piston rod of the double-head air cylinder 56 extends, the first clamping arms 53 on the two sides of the clamp base 5 drive the pressing block 531 to tightly press and fix the base part 9, the hook 8 is placed on a clamping groove of the positioning block 61, the piston rod of the third air cylinder 63 extends, the second clamping arms 62 drive the clamping block 64 to tightly clamp and fix the hook 8, and the hook 8 is tightly attached to the base part 9 after being fixed;

s2: firstly, the vertical height of a welding gun is roughly adjusted through a first support 40, a piston rod of a moving cylinder 322 is contracted, the transverse position of the welding gun 7 is roughly adjusted, the welding gun 7 enters a rough welding position, then a second support 40 and an angle adjusting support 47 are rotated to adjust the welding angle of the welding gun 7, and then a first knob 42 and a second knob 44 are screwed to finely adjust the welding position of the welding gun 7, so that the gun head of the welding gun 7 is accurately aligned with the joint of a hook 8 and a base part 9;

s3: the wire feeder 35 is used for feeding welding wires at a constant speed, the servo speed reduction motor 16 is used for driving the rotating disk 3 and the rotating arm 32 to rotate synchronously, the rotating arm 32 is used for driving the welding gun 7 to rotate, and the welding gun 7 is used for carrying out 360-degree rotary welding at a joint of the hook 8 and the base part 9 at a constant speed.

After welding is completed, the piston rod of the movable air cylinder 322 extends, the welding gun 7 exits from the welding position, the piston rod of the air cylinder III 63 contracts, the hook fixing mechanism removes the fixing of the hook 8, the piston rod of the air cylinder II 55 contracts, the piston rod of the double-head air cylinder 56 contracts, the base fixing mechanism removes the fixing of the base part 9, a weldment is taken down, and the steps are repeated to weld the next workpiece.

The welding method based on the device is used for automatically and accurately welding the silencer seat part and the hook, and is very suitable, effective and simple.

The effect that its structure reached:

1. couple fixed establishment and base portion fixed establishment cooperation are used, with couple and base portion laminating and clamping fastening fixed, rethread servo gear motor control welder rotation rate, make welder at the uniform velocity around couple and the rotatory welding of base portion laminating department, avoid traditional work piece rotation mode to appear couple and base portion rocking and the disalignment condition, couple and base portion can keep closely laminating throughout among the welding process, the welding seam after the welding is even level and smooth, welding quality is unanimous, avoid welding partially, the insecure phenomenon of welding, effectively improve muffler welding quality, the rejection rate is reduced, the manufacturing cost of enterprises is saved.

2. The welding gun can roughly adjust the position of the welding gun through the first support and the moving cylinder, the position of the welding gun is accurately adjusted through the first knob and the second knob, the second support and the angle adjusting support can rotate, the gun head of the welding gun is accurately aligned to the joint of the hook and the base, and meanwhile the best welding angle is kept for welding. Welder has a plurality of rotatory angle modulation and position control structure, its welder flexibility ratio height, can freely adjust welder position and angle as required, adjusts accurate height, and the governing speed is fast, further promotes welding quality and production efficiency.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a welder rotation type car muffler couple welding set, includes base (1), fixture device, its characterized in that: the gas-electric integrated sliding ring welding machine is characterized in that a supporting rod (2) is arranged on the base (1), the supporting rod (2) is sequentially provided with a gas-electric integrated sliding ring (11), a bottom plate (12) and a rotating mechanism from bottom to top, the rotating mechanism comprises a rotating disk (3) and a rotating arm (32), the rotating disk (3) is arranged on the supporting rod (2), a mounting sleeve (31) is fixedly connected to the center of the rotating disk (3), a bearing is arranged in the mounting sleeve (31) and connected with the supporting rod (2), one end of the rotating arm (32) is fixedly connected with the mounting sleeve (31), the other end of the rotating arm is provided with a sliding block (33), an adjusting mechanism and a welding gun (7) are arranged on the sliding block (33), a servo speed reducing motor (16) is arranged on the bottom plate (12), and the servo speed reducing motor (16) is in transmission connection with the rotating disk (3);

the fixture device comprises a hook fixing mechanism and a base part fixing mechanism, wherein the base part fixing mechanism is located at the top of the supporting rod (2), the hook (8) and the base part (9) are clamped, fixed and attached by the fixture device, the servo speed reducing motor (16) drives the rotating disk (3) and the rotating arm (32) to rotate synchronously, and the welding gun (7) is welded around the attaching part of the hook (8) and the base part (9).

2. The welding gun rotating type automobile silencer hook welding device according to claim 1, wherein: rotary disk (3) have outer tooth-like slewing bearing (36) and annular safety cover (13), outer tooth-like slewing bearing (36) inner circle is connected with bracing piece (2), and the outer lane is connected with rotary disk (3), be equipped with driving gear (161) on servo gear motor (16)'s the output shaft, driving gear (161) are connected with outer tooth-like slewing bearing (36) outer lane transmission, driving gear (161) and outer tooth-like slewing bearing (36) are located annular safety cover (13).

3. The welding gun rotating type automobile silencer hook welding device according to claim 1, wherein: be equipped with slide rail (321) on swinging boom (32), slide rail (321) have moving cylinder (322) down, slider (33) are located slide rail (321), moving cylinder (322) piston rod is connected with slider (33), moving cylinder (322) are used for driving slider (33) and move on slide rail (322).

4. The welding gun rotating type automobile silencer hook welding device according to claim 3, wherein: the adjusting mechanism further comprises a first support (4) and a first rack column (41), the first rack column (41) is arranged on the sliding block (33) in the vertical direction, a first rack is arranged on the first rack column (41), the first support (4) is sleeved on the first rack column (41), a second support (40) is further arranged on the first support (4), the first support (4) is rotatably connected with the second support (40), the second support (40) is provided with a second rack column (43) which is transversely arranged, the second rack column (43) is provided with a second rack, a fixing frame (46) is arranged at the end of the second rack column (43), an angle adjusting support (47) is arranged in the fixing frame (46), the angle adjusting support (47) is rotatably connected with the fixing frame (46), and the welding gun position (7) is fixedly connected to the angle adjusting support (47);

be equipped with knob (42) on support (4), be equipped with adjustment gear on knob (42) and be connected with rack (41) cooperation, still be equipped with mounting groove one and bolt (401) on support (4), be equipped with knob two (44) on support two (40), be equipped with adjustment gear two (45) and rack two (43) cooperation on knob two (44) and be connected.

5. The welding gun rotating type automobile silencer hook welding device according to claim 1, wherein: base portion fixed establishment includes connecting plate (51) and anchor clamps base (5), connecting plate (51) fixed connection is on bracing piece (2) top, be equipped with connecting rod (52) joint fixture base (5) on connecting plate (51), anchor clamps base (5) both sides are equipped with arm lock (53), all be equipped with on arm lock (53) of both sides with base portion (9) convex surface laminating briquetting (531), still be equipped with double-end cylinder (54) under anchor clamps base (5), the piston rod and the arm lock (53) of both sides of double-end cylinder (54) are connected, still be equipped with fixed block (56) with base portion (9) concave surface laminating on anchor clamps base (5).

6. The welding gun rotary type automobile silencer hook welding device according to claim 1, characterized in that: still be equipped with support frame (14) on bottom plate (12), be equipped with roof (15) on support frame (14), couple fixed establishment is equipped with connecting seat (6) and cylinder three (63), connecting seat (6) fixed connection is under roof (15), connecting seat (6) have locating piece (61), arm lock two (62) one end is equipped with clamp splice (64), and the other end is connected with cylinder three (63), locating piece (61) and clamp splice (64) all are equipped with and couple (8) matched with clamping groove.

7. The welding gun rotating type automobile silencer hook welding device according to claim 1, wherein: the rotary disc 3 is further provided with a welding wire disc (34), a wire feeder (35) and a wiring terminal box (37), and the wire feeder (35) comprises a welding wire input end (351), a wire feeding roller (352) and a welding wire output end (353).

8. The welding method of the welding gun rotating type automobile silencer hook welding device according to any one of claims 1 to 7, characterized by comprising the following steps:

s1: the base part (9) is placed on the fixing block (56), a piston rod of the double-head cylinder (56) extends, the first clamping arms (53) on two sides of the clamp base (5) drive the pressing block (531) to tightly press the fixing base part (9), the hook (8) is placed on a clamping groove of the positioning block (61), the piston rod of the third cylinder (63) extends, the second clamping arm (62) drives the clamping block (64) to clamp the fixing hook (8), and the hook (8) is tightly attached to the base part (9) after being fixed;

s2: firstly, roughly adjusting the position of a welding gun (7) through a first support (4) and a moving cylinder (322), then rotating a second support (40) and an angle adjusting support (47) to adjust the welding angle of the welding gun (7), and finally screwing a first knob (42) and a second knob (44) to finely adjust the position of the welding gun (7) so that the gun head of the welding gun (7) is accurately aligned with the joint of a hook (8) and a base part (9);

s3: the wire feeder (35) feeds welding wires, the servo speed reduction motor (16) drives the rotating disk (3) and the rotating arm (32) to synchronously rotate, the rotating arm (32) drives the welding gun (7) to rotate, and the welding gun (7) rotates at a constant speed for 360-degree rotation welding around the joint of the hook (8) and the base part (9).