CN108406187A - A kind of adjustable automatic arc repair-welding device - Google Patents

Abstract

The present invention relates to the field of welding, more specifically an adjustable automatic arc welding repair device, including a support, a driving device, an adjustable arc repair welding device, a welding torch, a fixed reciprocating moving device and a position fixing device, The driving device is fixedly connected to the support, the adjustable arc repairing device is connected to the support through a pin shaft, the driving device is connected to the adjustable arc repairing device through threads, and the welding torch is fixedly connected to the adjustable arc repairing device , the driving device is slidingly connected in the fixed reciprocating device, the beneficial effect of the present invention is that it can realize automatic reciprocating arc welding for the equipment to be welded, and at the same time, the arc of the arc welding can be adjusted according to the size of the equipment to be welded, and the automatic reciprocating movement The equipment to be repaired can be welded repeatedly to make the welding effect better.

Description

An adjustable automatic arc repair welding device

technical field

The invention relates to the field of welding, in particular to an adjustable automatic arc repair welding device.

Background technique

Automatic welding equipment is equipment for automatic repair welding of equipment, and arc welding is the best welding method with better effect. Patent No. CN201010107578.9 discloses a welding torch arc swing device, which includes a mounting base, a motor, a connecting frame, a gear, a rack and a fixed block; the motor, the connecting frame and the fixed block are fixedly connected in sequence from right to left Together, gears are installed in the connecting frame, and there is a mounting seat in front of the connecting frame. An arc-shaped rack is fixedly installed on the mounting seat. The teeth of the gear mesh with the teeth of the rack. There is an arc-shaped chute on the bar, and a positioning device is installed on the fixed block. The positioning device can be stuck in the chute and move along the chute. The power output shaft of the motor is fixedly installed with the gear and drives the gear to rotate. The connecting frame moves in an arc along the rack along with the gear. The invention has a reasonable and compact structure and is easy to use. With the welding torch arc swing device, the welding torch rotates around the arc rack through the gear to realize the free offset of the online adjustment of the welding torch angle, thus greatly improving the working efficiency. But this equipment cannot realize the reciprocating motion of the automatic welding equipment, nor can it adjust the welding range of the welding arc.

Contents of the invention

The purpose of the present invention is to provide an adjustable automatic arc-shaped repair welding device, which has the beneficial effect of realizing automatic reciprocating arc-shaped welding for the equipment to be welded, and at the same time, the arc of the arc-shaped welding can be adjusted according to the size of the equipment to be welded , The equipment to be repaired with automatic reciprocating motion can perform repeated welding to make the welding effect better.

The purpose of the present invention is achieved through the following technical solutions:

The object of the present invention is to provide an adjustable automatic arc repair welding device, including a support, a driving device, an adjustable arc repair welding device, a welding torch, a fixed reciprocating moving device and a position fixing device, and the driving device is fixedly connected to the support On the seat, the adjustable arc repairing device is hinged on the support through a pin shaft, the driving device is connected to the adjustable arc repairing device through threads, the welding torch is fixedly connected to the adjustable arc repairing device, and the driving device is slidably connected to the In the fixed reciprocating device, the position fixing device is clearance-fitted on the fixed reciprocating device.

As a further optimization of the present invention, the driving device of the present invention includes a motor, a rotating rod, a driving rod, a swing sliding shaft, an adjusting bolt, a spacer, a rotating rod, a connecting rod, a reciprocating drive shaft and a slide plate, and the motor is fixedly connected to the On the support, the rotating rod is fixedly connected to the transmission shaft of the motor, the driving rod is hinged on the rotating rod, the swinging sliding shaft is fixedly connected to the driving rod, the adjusting bolt is connected to the swinging sliding shaft through thread fit, and the spacer is fixedly connected to the The lower end of the swing slide shaft is fixedly connected to the driving rod by the rotating rod, the connecting rod is fixedly connected on the rotating rod, the reciprocating driving shaft is fixedly connected on the connecting rod, and the slide plate is connected to the lower end of the reciprocating driving shaft by threads.

As a further optimization of the present invention, the adjustable arc repair welding device of the present invention includes a swing block, an upper end plate, a lower end plate and a chute, the left end of the swing block is hinged on the support through a pin, and the upper end plate and the lower end The plates are fixedly connected to the upper and lower ends of the oscillating block respectively, and there are two chutes, which are respectively arranged at the lower end of the upper end plate and the upper end of the lower end plate;

The welding torch is fixedly connected to the lower end of the lower end plate.

As a further optimization of the present invention, the adjustable arc repair welding device of the present invention also includes a swing drive device, which includes a swing drive rod, a drive chute, a slide shaft, a drive upper shaft, a drive lower shaft, an upper The rotating shaft connecting rod and the lower rotating shaft connecting rod, the driving chute is arranged on the swinging driving rod, the swinging sliding shaft is slidably connected in the driving chute, the sliding shaft is fixedly connected to the swinging driving rod, and the upper end and the lower end of the sliding shaft are respectively slidably connected to the In the two chutes, there are two connecting rods for the upper rotating shaft and two connecting rods for the lower rotating shaft. Between the connecting rods of the upper rotating shaft, the driving lower rotating shaft is rotatably connected between the connecting rods of the two lower rotating shafts, and the upper driving rotating shaft and the lower rotating shaft are both slidably connected in the swinging block.

As a further optimization of the present invention, the fixed reciprocating device of the present invention includes a front splint, a rear splint, a reciprocating drive block, an adjustment plate, an adjustment device, an upper rack chute, a lower rack chute, a fixed slot, The gear groove and the bottom plate, the right ends of the front splint and the rear splint are all fixedly connected to the adjustment device, the reciprocating drive block is fixedly connected to the adjustment plate, the reciprocating drive shaft is slidably connected in the reciprocating drive block, the adjustment device is arranged in the adjustment plate, and the fixed slot There are two sets, the upper rack chute, the lower rack chute, two fixed slots and the gear groove are all set on the adjustment plate, the gear groove is connected to the upper rack chute and the lower rack chute, and the bottom plate is set There are two slideway grooves, and the lower end of the adjustment plate is slidingly connected in the two slideway grooves;

The adjusting device includes an upper rack, a lower rack, a gear, a connecting shaft, a fixed toothed plate and a screw block, the upper rack and the lower rack are fixedly connected to the front splint and the rear splint respectively, and the upper rack and the lower splint are respectively fixed. The racks are slidably connected in the upper rack chute and the lower rack chute respectively, the gears are arranged in the gear slots, the upper end and the lower end of the gears mesh with the upper rack and the lower rack respectively, the connecting shaft is fixedly connected to the gears, and the The rotating shaft is rotatably connected to the adjusting plate, the fixed toothed disc is fixedly connected to the connecting rotating shaft, and the screw block is fixedly connected to the fixed toothed disc.

As a further optimization of the present invention, the position fixing device described in the present invention includes a flashing plate, a horizontal plate and a tooth groove. It is fixedly connected to the right ends of the two flashboards, the tooth grooves are arranged on the horizontal plate, and the tooth grooves are engaged with the fixed chainrings.

As a further optimization of the present invention, the included angle between the two upper rotating shaft connecting rods and the two lower rotating shaft connecting rods in the present invention is 120°.

Adopting the technical scheme provided by the invention, compared with the prior art, the beneficial effect is that the adjustable arc welding repair device can adjust the arc welding arc according to the size of the equipment to be welded, and the fixed reciprocating moving device makes the reciprocating moving Repair welding equipment can perform repeated welding to make the welding effect better.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the second overall structure schematic diagram of the present invention;

Fig. 3 is a schematic structural view of the driving device of the present invention;

Fig. 4 is a structural schematic diagram 1 of the adjustable arc repair welding device of the present invention;

Fig. 5 is a structural schematic diagram of the swing block of the present invention;

Fig. 6 is a structural schematic diagram of the swing driving device of the present invention;

Fig. 7 is a structural schematic diagram II of the adjustable arc welding device of the present invention;

Fig. 8 is a structural schematic diagram 1 of the fixed reciprocating device of the present invention;

Fig. 9 is a structural schematic diagram II of the fixed reciprocating device of the present invention;

Fig. 10 is a schematic structural view of the regulating device of the present invention;

Fig. 11 is a schematic structural view of the position fixing device of the present invention;

Fig. 12 is a schematic structural view of the position fixing device of the present invention.

Among the figure: bearing 1; driving device 2; motor 2-1; rotating rod 2-2; driving rod 2-3; swing sliding shaft 2-4; adjusting bolt 2-5; spacer 2-6; rotating rod 2 -7; connecting rod 2-8; reciprocating drive shaft 2-9; slide plate 2-10; adjustable arc repair welding device 3; swing block 3-1; swing drive device 3-2; swing drive rod 3-2- 1; drive chute 3-2-2; slide shaft 3-2-3; drive upper shaft 3-2-4; drive lower shaft 3-2-5; upper shaft connecting rod 3-2-6; lower shaft connection Rod 3-2-7; upper end plate 3-3; lower end plate 3-4; chute 3-5; welding torch 4; fixed reciprocating device 5; front splint 5-1; rear splint 5-2; -3; Adjusting plate 5-4; Adjusting device 5-5; Upper rack 5-5-1; Lower rack 5-5-2; Gear 5-5-3; Connecting shaft 5-5-4; Fixed teeth Plate 5-5-5; screw block 5-5-6; upper rack chute 5-6; lower rack chute 5-7; fixed slot 5-8; gear slot 5-9; bottom plate 5-10 ; Position fixing device 6; Insert plate 6-1; Horizontal plate 6-2; Alveolar 6-3.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Specific implementation mode one:

As shown in Figures 1 to 11, an adjustable automatic arc-shaped repair welding device includes a support 1, a driving device 2, an adjustable arc-shaped repair welding device 3, a welding torch 4, a fixed reciprocating moving device 5 and a fixed position Device 6, the driving device 2 is fixedly connected to the support 1, the adjustable arc welding device 3 is hinged on the support 1 through a pin shaft, the driving device 2 is screwed to the adjustable arc repairing device 3, and the welding torch 4 is fixed It is connected to the adjustable arc-shaped repairing welding device 3 , the driving device 2 is slidingly connected in the fixed reciprocating device 5 , and the position fixing device 6 is gap-fitted on the fixed reciprocating device 5 . The driving device 2 drives the arc-adjusting repair welding device 3 and the fixed reciprocating moving device 5 at the same time, so that the arc-adjusting repair welding device 3 performs an arc-shaped reciprocating swing, and the fixed reciprocating moving device 5 reciprocates, thereby realizing automatic arc welding of the welding torch 4 , the equipment to be welded automatically reciprocates through the clamping of the fixed reciprocating device 5 to realize automatic reciprocating arc welding, and the position fixing device 6 realizes fixing the clamping equipment.

Specific implementation mode two:

As shown in Figures 1 to 11, this embodiment further describes the first embodiment, the drive device 2 includes a motor 2-1, a rotating rod 2-2, a driving rod 2-3, a swing sliding shaft 2-4, Adjusting bolt 2-5, cushion block 2-6, rotating rod 2-7, connecting rod 2-8, reciprocating drive shaft 2-9 and slide plate 2-10, motor 2-1 is fixedly connected on the bearing 1, and rotating rod 2-2 is fixedly connected to the transmission shaft of the motor 2-1, the driving rod 2-3 is hinged on the rotating rod 2-2, the swing sliding shaft 2-4 is fixedly connected to the driving rod 2-3, and the adjusting bolt 2-5 Connected on the swing sliding shaft 2-4 through thread fit, the spacer 2-6 is fixedly connected to the lower end of the swing sliding shaft 2-4, the rotating rod 2-7 is fixedly connected on the driving rod 2-3, and the connecting rod 2-8 Fixedly connected on the rotating rod 2-7, the reciprocating drive shaft 2-9 is fixedly connected on the connecting rod 2-8, and the slide plate 2-10 is connected to the lower end of the reciprocating drive shaft 2-9 by threads.

Specific implementation mode three:

As shown in Figures 1 to 11, this embodiment will further illustrate the second embodiment. The adjustable arc welding device 3 includes a swing block 3-1, an upper end plate 3-3, a lower end plate 3-4 and The chute 3-5, the left end of the oscillating block 3-1 is hinged on the support 1 through the pin shaft, the upper end plate 3-3 and the lower end plate 3-4 are respectively fixedly connected to the upper and lower ends of the oscillating block 3-1, the chute 3-5 is provided with two, and the two chute 3-5 are respectively arranged on the lower end of the upper end plate 3-3 and the upper end of the lower end plate 3-4;

The welding torch 4 is fixedly connected to the lower end of the lower end plate 3-4.

Specific implementation mode four:

As shown in Figures 1 to 11, this embodiment further describes the third embodiment, the adjustable arc welding device 3 also includes a swing drive device 3-2, and the swing drive device 3-2 includes a swing drive rod 3-2-1, drive chute 3-2-2, slide shaft 3-2-3, drive upper shaft 3-2-4, drive lower shaft 3-2-5, upper shaft connecting rod 3-2-6 and the lower rotating shaft connecting rod 3-2-7, the drive chute 3-2-2 is arranged on the swing drive rod 3-2-1, and the swing slide shaft 2-4 is slidably connected in the drive chute 3-2-2, The sliding shaft 3-2-3 is fixedly connected to the swing driving rod 3-2-1, the upper end and the lower end of the sliding shaft 3-2-3 are respectively slidingly connected in two chute 3-5, and the upper rotating shaft connecting rod 3- 2-6 and the following rotating shaft connecting rod 3-2-7 are all provided with two, and two upper rotating shaft connecting rods 3-2-6 and two following rotating shaft connecting rods 3-2-7 are all fixedly connected on the slide shaft 3-2-7. 2-3, drive the upper rotating shaft 3-2-4 to rotate and connect between the two upper rotating shaft connecting rods 3-2-6, drive the lower rotating shaft 3-2-5 to rotate and connect to the two lower rotating shaft connecting rods 3-2 Between -7, the driving upper rotating shaft 3-2-4 and the driving lower rotating shaft 3-2-5 are all slidably connected in the swing block 3-1.

Specific implementation mode five:

As shown in Figures 1 to 11, this embodiment will further illustrate Embodiment 4. The fixed reciprocating device 5 includes a front splint 5-1, a rear splint 5-2, a reciprocating drive block 5-3, and an adjustment plate. 5-4, adjusting device 5-5, upper rack chute 5-6, lower rack chute 5-7, fixed slot 5-8, gear groove 5-9 and bottom plate 5-10, front splint 5- 1 and the right end of the rear splint 5-2 are fixedly connected to the adjustment device 5-5, the reciprocating drive block 5-3 is fixedly connected to the adjustment plate 5-4, and the reciprocating drive shaft 2-9 is slidably connected in the reciprocating drive block 5-3 , the adjustment device 5-5 is arranged in the adjustment plate 5-4, and the fixed slot 5-8 is provided with two, the upper rack chute 5-6, the lower rack chute 5-7, two fixed slots 5 -8 and the gear groove 5-9 are all arranged on the adjusting plate 5-4, the gear groove 5-9 communicates with the upper rack chute 5-6 and the lower rack chute 5-7, and the base plate 5-10 is provided with two The lower end of the adjustment plate 5-4 is slidably connected in the two slideway grooves; the slide plate 2-10 supports the fixed reciprocating device 5, and the lower end of the adjustment plate 5-4 is provided with two sliding slides. The block realizes left and right linear reciprocal movement on the base plate 5-10, and the adjusting plate 5-4 is composed of two half sections connected by screws, so that the upper rack chute 5-6, the lower rack chute 5-7, and the Both the slot 5-8 and the gear groove 5-9 are convenient for processing, and are also convenient for the installation of the gear 5-5-3.

The adjusting device 5-5 includes an upper rack 5-5-1, a lower rack 5-5-2, a gear 5-5-3, a connecting shaft 5-5-4, and a fixed toothed disc 5-5-5 And screw block 5-5-6, upper rack 5-5-1, upper rack 5-5-1 and lower rack 5-5-2 are respectively fixedly connected to front splint 5-1 and rear splint 5-2, upper The rack 5-5-1 and the lower rack 5-5-2 are slidingly connected in the upper rack chute 5-6 and the lower rack chute 5-7 respectively, and the gear 5-5-3 is arranged in the gear groove 5 -9, the upper and lower ends of the gear 5-5-3 mesh with the upper rack 5-5-1 and the lower rack 5-5-2 respectively, and the connecting shaft 5-5-4 is fixedly connected to the gear 5-5- 3. The connecting shaft 5-5-4 is rotatably connected to the adjusting plate 5-4, the fixed gear plate 5-5-5 is fixedly connected to the connecting shaft 5-5-4, and the screw block 5-5-6 is fixedly connected to the fixed On the chainring 5-5-5. The upper rack 5-5-1 and the lower rack 5-5-2 are respectively provided with sliders that are slidably connected in the upper rack chute 5-6 and the lower rack chute 5-7.

Specific implementation method six:

As shown in Figures 1 to 11, this embodiment further describes the fifth embodiment. The position fixing device 6 includes a board 6-1, a horizontal board 6-2 and a tooth groove 6-3, and the board 6- 1. Two boards 6-1 are fitted in two fixed slots 5-8 with gaps respectively. The horizontal board 6-2 is fixedly connected to the right ends of the two boards 6-1. Set on the horizontal plate 6-2, the tooth groove 6-3 meshes with the fixed toothed disc 5-5-5.

Specific implementation mode seven:

As shown in Figures 1 to 11, this embodiment will further describe Embodiment 5. The two upper shaft connecting rods 3-2-6 and the two lower rotating shaft connecting rods 3-2-7 are on the sliding shaft 3 The angle between -2-3 is 120°. Make the driving upper rotating shaft 3-2-4 and the driving lower rotating shaft 3-2-5 slide in the swinging block 3-1, and simultaneously drive the swinging block 3-1.

The working principle of the present invention is: the motor 2-1 and the welding torch 4 are connected to electricity, the motor 2-1 drives the rotating rod 2-2, the driving rod 2-3 and the rotating rod 2-7 to rotate, and the adjusting bolt 2-5 and the pad 2-6 Clamp the swing drive rod 3-2-1, so that the drive rod 2-3 and the swing slide shaft 2-4 are fixed on the swing drive rod 3-2-1, and then the swing drive rod 3-2-1 Arc-shaped reciprocating swing, and then drive the sliding shaft 3-2-3 to swing back and forth in the arc shape of the two chute 3-5, and then drive the upper rotating shaft 3-2-4 and drive the lower rotating shaft 3-2-5 on the swing block 3-1 inner arc reciprocating swing, and then push the swing block 3-1 arc reciprocating swing, and then realize the arc reciprocating swing of the welding torch 4 in the front and rear directions; by adjusting the adjusting bolt 2-5, adjust the swing slide shaft 2-4 and The position of the spacer 2-6 on the swing driving rod 3-2-1, thereby realizing the adjustment of the arc-shaped reciprocating swing range of the welding torch 4. The rotation of the rotating rod 2-7 drives the connecting rod 2-8 and the reciprocating drive shaft 2-9 to rotate, and the reciprocating drive shaft 2-9 drives the reciprocating drive block 5-3 to perform linear reciprocating motion left and right on the base plate 5-10, thereby driving The fixed reciprocating device 5 reciprocates as a whole, and the gear 5-5-3 is driven to rotate by rotating the screw block 5-5-6 to realize the aggregation and separation of the upper rack 5-5-1 and the lower rack 5-5-2, and then Realize the aggregation and separation of the front splint 5-1 and the rear splint 5-2, and then realize the combination of adjusting the size of the equipment to be repaired and clamping and fixing at the same time, through the meshing of the tooth groove 6-3 and the fixed tooth plate 5-5-5 Cooperate with the gap between the two inserting plates 6-1 and the two fixing slots 5-8 to realize the fixation of the front clamping plate 5-1 and the rear clamping plate 5-2, and then realize the clamping and left and right linear reciprocating motion of the equipment to be repaired According to the forward and backward arc-shaped reciprocating swing of the welding torch 4, the arc-shaped repair welding of automatic displacement on the equipment to be repaired is realized.

The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention .

Claims (7)

1. An adjustable automatic arc-shaped repair welding device, including a support (1), a driving device (2), an adjustable arc-shaped repair welding device (3), a welding torch (4), and a fixed reciprocating moving device (5) And the position fixing device (6), is characterized in that: the driving device (2) is fixedly connected on the support (1), the adjustable arc repair welding device (3) is hinged on the support (1) through the pin shaft, drives The device (2) is connected to the adjustable arc-shaped repair welding device (3) through threads, the welding torch (4) is fixedly connected to the adjustable arc-shaped repair welding device (3), and the driving device (2) is slidably connected to the fixed reciprocating mobile device ( 5), the position fixing device (6) is clearance fit on the fixed reciprocating moving device (5). 2. An adjustable automatic arc repairing device according to claim 1, characterized in that: the drive device (2) includes a motor (2-1), a rotating rod (2-2), a drive Rod (2-3), swing sliding shaft (2-4), adjusting bolt (2-5), spacer (2-6), rotating rod (2-7), connecting rod (2-8), reciprocating drive Shaft (2-9) and slide plate (2-10), motor (2-1) is fixedly connected on the support (1), and rotating rod (2-2) is fixedly connected on the transmission shaft of motor (2-1) , the driving rod (2-3) is hinged on the rotating rod (2-2), the swinging sliding shaft (2-4) is fixedly connected to the driving rod (2-3), and the adjusting bolt (2-5) is connected through thread fit On the swing sliding shaft (2-4), the spacer (2-6) is fixedly connected to the lower end of the swing sliding shaft (2-4), and the turning rod (2-7) is fixedly connected to the driving rod (2-3) , the connecting rod (2-8) is fixedly connected to the rotating rod (2-7), the reciprocating drive shaft (2-9) is fixedly connected to the connecting rod (2-8), and the slide plate (2-10) is screwed to the The lower end of the reciprocating drive shaft (2-9). 3. An adjustable automatic arc-shaped repair welding device according to claim 2, characterized in that: said adjustable arc-shaped repair welding device (3) includes a swing block (3-1), an upper end plate ( 3-3), the lower end plate (3-4) and the chute (3-5), the left end of the swing block (3-1) is hinged on the support (1) through a pin, the upper end plate (3-3) and The lower end plate (3-4) is respectively fixedly connected to the upper and lower ends of the swing block (3-1), two chute (3-5) are provided, and the two chute (3-5) are respectively arranged on the upper end plate ( The lower end of 3-3) and the upper end of the lower end plate (3-4); The welding torch (4) is fixedly connected to the lower end of the lower end plate (3-4). 4. An adjustable automatic arc-shaped repair welding device according to claim 3, characterized in that: said adjustable arc-shaped repair welding device (3) also includes a swing drive device (3-2), which swings The drive device (3-2) comprises a swing drive rod (3-2-1), a drive chute (3-2-2), a slide shaft (3-2-3), and a drive upper shaft (3-2-4) , drive the lower rotating shaft (3-2-5), the upper rotating shaft connecting rod (3-2-6) and the lower rotating shaft connecting rod (3-2-7), the driving chute (3-2-2) is set on the swing driving On the rod (3-2-1), the swing sliding shaft (2-4) is slidably connected in the driving chute (3-2-2), and the sliding shaft (3-2-3) is fixedly connected to the swing driving rod (3 -2-1), the upper end and the lower end of the sliding shaft (3-2-3) are slidingly connected in the two chute (3-5) respectively, and the upper rotating shaft connecting rod (3-2-6) is connected with the lower rotating shaft Bars (3-2-7) are provided with two, and two upper rotating shaft connecting rods (3-2-6) and two lower rotating shaft connecting rods (3-2-7) are all fixedly connected on the sliding shaft (3-2-7). 2-3), drive the upper rotating shaft (3-2-4) to rotate and connect between the two upper rotating shaft connecting rods (3-2-6), and drive the lower rotating shaft (3-2-5) to rotate and connect to the two Between the lower rotating shaft connecting rods (3-2-7), the driving upper rotating shaft (3-2-4) and the driving lower rotating shaft (3-2-5) are all slidably connected in the swing block (3-1). 5. An adjustable automatic arc repair welding device according to claim 4, characterized in that: the fixed reciprocating device (5) includes a front splint (5-1), a rear splint (5-2 ), reciprocating drive block (5-3), adjusting plate (5-4), adjusting device (5-5), upper rack chute (5-6), lower rack chute (5-7), fixed Slot (5-8), gear slot (5-9) and base plate (5-10), the right end of front splint (5-1) and rear splint (5-2) are all fixedly connected with adjusting device (5-5) , the reciprocating drive block (5-3) is fixedly connected to the adjustment plate (5-4), the reciprocating drive shaft (2-9) is slidingly connected in the reciprocating drive block (5-3), and the adjustment device (5-5) is set In the adjustment plate (5-4), there are two fixed slots (5-8), the upper rack chute (5-6), the lower rack chute (5-7), two fixed slots (5-8) and gear groove (5-9) are all arranged on the adjusting plate (5-4), and gear groove (5-9) communicates with upper rack chute (5-6) and lower rack chute ( 5-7), the base plate (5-10) is provided with two slideway grooves, and the lower end of the adjusting plate (5-4) is slidably connected in the two slideway grooves; The adjusting device (5-5) includes an upper rack (5-5-1), a lower rack (5-5-2), a gear (5-5-3), a connecting shaft (5-5-4 ), the fixed tooth plate (5-5-5) and the screw block (5-5-6), the upper rack (5-5-1) and the lower rack (5-5-2) are fixedly connected to the front splint ( 5-1) and the rear splint (5-2), the upper rack (5-5-1) and the lower rack (5-5-2) are slidingly connected to the upper rack chute (5-6) and the lower rack respectively In the rack chute (5-7), the gear (5-5-3) is arranged in the gear groove (5-9), and the upper end and the lower end of the gear (5-5-3) are connected with the upper rack (5-5-3) respectively. 5-1) is meshed with the lower rack (5-5-2), the connecting shaft (5-5-4) is fixedly connected to the gear (5-5-3), and the connecting shaft (5-5-4) is connected in rotation On the adjustment plate (5-4), the fixed toothed disc (5-5-5) is fixedly connected on the connecting rotating shaft (5-5-4), and the screw block (5-5-6) is fixedly connected to the fixed toothed disc (5-5-4). -5-5) on. 6. An adjustable automatic arc-shaped repair welding device according to claim 5, characterized in that: the position fixing device (6) includes an inserting plate (6-1), a horizontal plate (6-2) and the tooth groove (6-3), two flashboards (6-1) are provided with two, and the two flashboards (6-1) are clearance fit in two fixed slots (5-8) respectively, and the horizontal plate (6 -2) It is fixedly connected to the right end of the two inserting plates (6-1), the tooth groove (6-3) is arranged on the horizontal plate (6-2), and the tooth groove (6-3) is connected with the fixed tooth plate (5- 5-5) meshing. 7. An adjustable automatic arc-shaped repair welding device according to claim 5, characterized in that: the upper shaft connecting rod (3-2-6) and the lower rotating shaft connecting rod (3-2-7 ) between the slide shafts (3-2-3) at an angle of 120°.