Intelligent positioning welding device for automatic welding

Abstract

The application provides an intelligent positioning welding device for automatic welding, and relates to the field of welding equipment.The intelligent positioning welding device comprises a plasma arc welding base, a welding moving frame is slidably connected in the plasma arc welding base, a linear motor is arranged on the upper portion of the welding moving frame, a mounting seat is fixedly connected to the outside of the linear motor, a welding sliding seat is slidably connected to the front portion of the mounting seat, a plasma arc welding head is arranged in the welding sliding seat, the plasma arc welding head is aligned with the plasma arc welding base, and two protective baffle frames are symmetrically hingedly connected to the outside of the welding sliding seat.In the process of moving the welding sliding seat downward, the protective baffle frames are turned over through a series of transmission, the protective baffle frames are closed, the plasma arc welding head is covered, the problem that high-temperature sparks generated during welding are easy to scatter everywhere and cause pollution to the surrounding working environment is solved, and the problem that once the high-temperature sparks are splashed on nearby workers, the workers are easy to be caused heat burns.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to an intelligent positioning welding device for automatic welding. Background Technology

[0002] In the processing of sheet metal materials, welding is often required. In order to ensure the quality of the weld and reduce subsequent processing, workers usually use intelligent positioning welding devices for plasma arc welding. Existing intelligent positioning welding devices typically consist of a fixed base, a clamping plate, and a welding head.

[0003] For example, utility model application CN202121229640.1 discloses an industrial intelligent welding robot with positioning and fixing functions, specifically including a welding table and a connecting part. The welding robot body is fixedly installed on the lower surface of the connecting part, and a moving positioning mechanism is fixedly provided on the surface of the welding table. Compared with the prior art, by turning on the motor and the welding robot body, the motor's drive shaft drives a set of threaded rods to rotate, the set of threaded rods drives a set of transmission sprockets to rotate, and the set of transmission sprockets drives another set of transmission sprockets to rotate through a transmission chain. The two sets of threaded rods rotate synchronously and in the same direction, causing the slider to move along the surface of the slide groove. The slider drives the connecting part and the welding robot body to move, so that the welding end of the welding robot body moves horizontally and completes the welding of the two sets of steel parts, thereby completing the welding operation of the two sets of steel parts, and thus avoiding the poor welding effect of the steel parts caused by the horizontal deviation of the welding robot body during the welding process.

[0004] However, during plasma arc welding, high-temperature sparks are usually generated in all directions. These sparks carry molten metal droplets and can easily scatter and pollute the surrounding working environment. In addition, if the high-temperature sparks splash onto nearby workers, they can easily cause burns, posing a certain danger and making the process inconvenient. Summary of the Invention

[0005] In view of this, the present invention provides an intelligent positioning welding device for automatic welding, which has a protective baffle and a filter box capable of blocking and purifying splashed sparks and fumes. During the downward movement of the welding sliding seat, the control rack drives the control gear to rotate. As the control gear rotates, it drives the protective baffle to rotate and close, covering the plasma arc welding head and preventing the sparks and fumes generated during plasma arc welding from splashing. During the rotation of the protective baffle, the extended baffle is also rotated. The extended spring allows the extended baffle to press against the sheet metal material. At the same time, the elastic potential energy of the extended spring can also adapt to sheet metal materials of different thicknesses. After the protective baffle closes, the instantaneous switch is inserted into the switch opening and closing hole. The depth of the switch opening and closing hole is less than the height of the instantaneous switch button. This causes the switch opening and closing hole to press the instantaneous switch after insertion. At this time, the instantaneous switch will start the fan body, which draws the fumes generated during welding into the filter box and filters them through the activated carbon filter before discharging them.

[0006] This invention provides an intelligent positioning welding device for automatic welding, specifically comprising: a plasma arc welding base; a welding moving frame slidably connected inside the plasma arc welding base; a linear motor mounted on the upper part of the welding moving frame; a mounting base fixedly connected to the outside of the linear motor; a welding sliding seat slidably connected to the front of the mounting base; a plasma arc welding head disposed inside the welding sliding seat; the plasma arc welding head and the plasma arc welding base being aligned; two protective guards symmetrically hinged to the outside of the welding sliding seat; a filter box fixedly connected to the outside of each of the two protective guards; the air outlets of the two filter boxes being connected to the two protective guards respectively via air pipes; an activated carbon filter screen slidably connected inside each of the two filter boxes; a fan body bolted to the two filter boxes; the two fan bodies being aligned with the positions of the two activated carbon filters respectively; a mounting shell fixedly connected to the left end face of the plasma arc welding base; and a sealing frame fixedly connected to the front end face of the plasma arc welding base.

[0007] Furthermore, two symmetrically rotating positioning double-ended screws are connected inside the plasma arc welding base; the threads at both ends of the two positioning double-ended screws are in opposite directions; the two positioning double-ended screws are symmetrically arranged on the front and rear sides of the plasma arc welding base; two positioning clamps are symmetrically connected to the outside of the two positioning double-ended screws; the two positioning clamps are slidably connected inside the plasma arc welding base; the two positioning clamps are symmetrically arranged on the left and right sides of the plasma arc welding base.

[0008] Furthermore, a first drive motor is provided on the left side of the aforementioned positioning double-ended screw; the first drive motor is bolted and fastened to the front of the left end of the mounting housing; the output shaft of the first drive motor is coaxially and fixedly connected to the front positioning double-ended screw; a first transmission pulley is coaxially and fixedly connected to the outside of each of the two positioning double-ended screws; the two first transmission pulleys are connected by a transmission; both first transmission pulleys are located inside the mounting housing.

[0009] Furthermore, two feed screws are symmetrically rotatably connected inside the plasma arc welding base; the two feed screws are respectively set on the left and right sides of the plasma arc welding base; a sealing frame is fixedly connected to the front end face of the plasma arc welding base; a second drive motor is bolted to the front end face of the sealing frame; the second drive motor is aligned with the right feed screw; the output shaft of the second drive motor is coaxially fixedly connected to the right feed screw.

[0010] Furthermore, a second transmission pulley is coaxially fixedly connected to the outside of each of the two feed screws; both second transmission pulleys are disposed inside the sealing frame; and the two second transmission pulleys are connected by a transmission belt.

[0011] Furthermore, an electric push rod is bolted to the top surface of the mounting base; the end of the output shaft of the electric push rod is fixedly connected to the top surface of the welded sliding seat.

[0012] Furthermore, a control gear is coaxially fixedly connected to the rear of each of the two protective guard shafts; two protective shells are symmetrically fixedly connected to the outside of the mounting base; the two control gears are respectively disposed inside the protective shells; two control racks are symmetrically fixedly connected to the outside of the mounting base; the two control racks are respectively disposed inside the protective shells; the two control racks mesh with the two control gears respectively.

[0013] Furthermore, each of the two protective guards is slidably connected to an extended guard; a set of extended springs is fixedly connected to the outside of each of the two extended guards; the ends of the two sets of extended springs are respectively fixedly connected to the two extended guards.

[0014] Furthermore, a momentary switch is fixedly connected to the inner side of each of the two protective baffles; the two momentary switches are electrically connected to the two fan bodies respectively; a switch opening and closing hole is opened on the inner side of each of the two protective baffles; the two switch opening and closing holes are respectively aligned with the positions of the two momentary switches.

[0015] Furthermore, each of the two filter boxes is fixedly connected to a fixed box on its exterior; an auxiliary sliding plate is slidably connected inside each of the two fixed boxes; a set of limiting rods is fixedly connected to the top surface of each of the two auxiliary sliding plates; the two sets of limiting rods are respectively inserted into the two activated carbon filter screens; a set of fixing springs is fixedly connected to the bottom surface of each of the two auxiliary sliding plates; the ends of the two sets of fixing springs are respectively fixedly connected into the two fixed boxes; a fixed carriage is fixedly connected to the exterior of each of the two auxiliary sliding plates; the two fixed carriages are respectively slidably connected into the two fixed boxes; a locking socket is slidably connected inside each of the two fixed carriages; a set of return springs is fixedly connected to the inner side of each of the two locking sockets; the ends of the two sets of return springs are respectively fixedly connected to the exterior of the two fixed carriages; the two locking sockets are respectively inserted into the two fixed boxes. Beneficial effects

[0016] In the process of plasma arc welding of sheet metal materials, the control rack drives the control gear to rotate as the welding sliding seat moves downward, which in turn drives the protective baffle to rotate and close, covering the plasma arc welding head and preventing sparks and fumes generated during plasma arc welding from splashing. During the rotation of the protective baffle, the extended baffle is also rotated. The extended spring allows the extended baffle to press against the sheet metal material, blocking the welding sparks inside the extended baffle and preventing burns to workers. This effectively improves the practicality of the intelligent positioning welding device.

[0017] After the protective barrier is closed, the instantaneous switch is inserted into the switch opening and closing hole. Pressing the switch opening and closing hole activates the fan body, which draws the fumes generated during welding into the filter box. The fumes are then filtered through the activated carbon filter and discharged, reducing the pollution of the surrounding environment and the harm to workers. This effectively improves the safety of the intelligent positioning welding device and makes it more convenient to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the isometric structure of the present invention.

[0022] Figure 2 This is an isometric structural diagram of the feed screw of the present invention.

[0023] Figure 3This is an isometric structural diagram of the first transmission pulley of the present invention.

[0024] Figure 4 This is an isometric structural diagram of the mounting base of the present invention.

[0025] Figure 5 This is a schematic diagram of the isometric structure of the control gear of the present invention.

[0026] Figure 6 This is the present invention. Figure 5 A magnified structural diagram at point A.

[0027] Figure 7 This is a cross-sectional structural schematic diagram of the protective barrier of the present invention.

[0028] Figure 8 This is a cross-sectional structural diagram of the filter box of the present invention.

[0029] Figure 9 This is a cross-sectional structural diagram of the fixing box of the present invention.

[0030] Figure 10 This is an isometric structural schematic diagram of the fixed box of the present invention in cross-section.

[0031] List of reference numerals

[0032] 1. Plasma arc welding base; 101. Positioning double-ended screw; 102. Mounting shell; 103. First drive motor; 104. Positioning clamp; 105. First transmission pulley; 106. Feed screw; 107. Second transmission pulley; 108. Welding moving frame; 109. Linear motor; 110. Mounting base; 111. Electric push rod; 112. Welding sliding seat; 113. Plasma arc welding head; 114. Protective shell; 115. Protective guard; 116. 117. Control gear; 118. Control rack; 119. Switch opening / closing hole; 120. Instantaneous switch; 121. Extension bracket; 122. Extension spring; 123. Filter box; 124. Activated carbon filter screen; 125. Fan body; 126. Auxiliary slide plate; 127. Fixing spring; 128. Limiting rod; 129. Fixing slide; 130. Locking socket; 131. Return spring; 132. Sealing frame; 133. Second drive motor; 134. Fixing box. Detailed Implementation Example 1

[0033] This invention provides an intelligent positioning welding device for automatic welding. Please refer to [link / reference]. Figures 1 to 10 As shown, it includes: a plasma arc welding base 1;

[0034] A welding moving frame 108 is slidably connected inside the plasma arc welding base 1; a linear motor 109 is installed on the upper part of the welding moving frame 108; a mounting base 110 is fixedly connected to the outside of the linear motor 109; a welding sliding seat 112 is slidably connected to the front of the mounting base 110; a plasma arc welding head 113 is installed inside the welding sliding seat 112; the position of the plasma arc welding head 113 is aligned with the position of the plasma arc welding base 1; two protective guards 115 are symmetrically hinged to the outside of the welding sliding seat 112; the two protective guards 115... Each of the two filter boxes 122 is fixedly connected to the outside; the air outlets of the two filter boxes 122 are respectively connected to two protective baffles 115 through air pipes; an activated carbon filter 123 is slidably connected inside each of the two filter boxes 122; a fan body 124 is bolted to the inside of the two filter boxes 122; the positions of the two fan bodies 124 are aligned with the positions of the two activated carbon filter 123 respectively; a mounting shell 102 is fixedly connected to the left end face of the plasma arc welding base 1; a sealing frame 131 is fixedly connected to the front end face of the plasma arc welding base 1.

[0035] The plasma arc welding base 1 is symmetrically and rotatably connected with two positioning double-ended screws 101; the threads at both ends of the two positioning double-ended screws 101 are opposite in direction; the two positioning double-ended screws 101 are symmetrically arranged on the front and rear sides of the plasma arc welding base 1; the two positioning double-ended screws 101 are symmetrically threaded to the outside of the two positioning double-ended screws 101 with two positioning clamps 104; the two positioning clamps 104 are slidably connected inside the plasma arc welding base 1; the two positioning clamps 104 are symmetrically arranged on the left and right sides of the plasma arc welding base 1.

[0036] The front positioning double-ended screw 101 has a first drive motor 103 on its left side; the first drive motor 103 is bolted to the front of the left end of the mounting housing 102; the output shaft of the first drive motor 103 is coaxially fixedly connected to the front positioning double-ended screw 101; a first transmission pulley 105 is coaxially fixedly connected to the outside of each of the two positioning double-ended screws 101; the two first transmission pulleys 105 are connected by a transmission; both first transmission pulleys 105 are located inside the mounting housing 102.

[0037] The plasma arc welding base 1 is symmetrically connected to two feed screws 106. The two feed screws 106 are respectively located on the left and right sides of the plasma arc welding base 1. A sealing frame 131 is fixedly connected to the front end face of the plasma arc welding base 1. A second drive motor 132 is bolted to the front end face of the sealing frame 131. The second drive motor 132 is aligned with the right feed screw 106. The output shaft of the second drive motor 132 is coaxially fixedly connected to the right feed screw 106.

[0038] Each of the two feed screws 106 is coaxially fixedly connected to a second transmission pulley 107; both second transmission pulleys 107 are set inside the sealing frame 131; the two second transmission pulleys 107 are connected by a transmission belt.

[0039] An electric push rod 111 is bolted to the top surface of the mounting base 110; the end of the output shaft of the electric push rod 111 is fixedly connected to the top surface of the welded sliding seat 112.

[0040] Among them, a control gear 116 is coaxially fixedly connected to the rear of the rotating shaft of each of the two protective guards 115; two protective shells 114 are symmetrically fixedly connected to the outside of the mounting base 110; the two control gears 116 are respectively set inside the protective shells 114; two control racks 117 are symmetrically fixedly connected to the outside of the mounting base 110; the two control racks 117 are respectively set inside the protective shells 114; the two control racks 117 mesh with the two control gears 116 respectively.

[0041] Each of the two protective guards 115 has an extended guard 120 slidably connected inside; each of the two extended guards 120 has a set of extended springs 121 fixedly connected to its exterior; the ends of the two sets of extended springs 121 are respectively fixedly connected inside the two extended guards 120.

[0042] The inner sides of the two protective baffles 115 are fixedly connected with instantaneous switches 119; the two instantaneous switches 119 are electrically connected to the two fan bodies 124 respectively; the inner sides of the two protective baffles 115 are provided with switch opening and closing holes 118; the positions of the two switch opening and closing holes 118 are aligned with the positions of the two instantaneous switches 119 respectively.

[0043] The specific usage and function of this embodiment: In the process of splicing and welding plate-like metal materials, the plate-like metal materials to be welded are placed on the plasma arc welding base 1 after being spliced ​​and welded. Then, the first drive motor 103 is started. At this time, the first drive motor 103 will drive the front positioning double-headed screw 101 to rotate. During the rotation of the positioning double-headed screw 101, the front first transmission pulley 105 will be driven to rotate. As the front first transmission pulley 105 rotates, the rear first transmission pulley 105 will be driven to rotate through the transmission belt. In turn, the rotation of the rear first transmission pulley 105 will drive the rear positioning double-headed screw 101 to rotate. In turn, the rotation of the two positioning double-headed screws 101 will drive the two positioning clamps 1. 04 Simultaneously, the two positioning clamps 104 move inward to position and clamp the mated plate-like metal materials. After the plate-like metal materials are positioned and clamped, the linear motor 109 is started, causing the mounting base 110 to move, aligning the plasma arc welding head 113 with the area to be welded. Then, the electric push rod 111 is started, causing the welding sliding seat 112 to move. As the welding sliding seat 112 moves, it causes the plasma arc welding head 113 to move downward, welding the area to be welded. Then, the second drive motor 132 is started, causing the output shaft of the second drive motor 132 to drive the right feed screw 106 to rotate. During the rotation of the right feed screw 106, the right second transmission belt is driven. The wheel 107 rotates, and the rotation of the right second transmission pulley 107 causes the left second transmission pulley 107 to rotate via the transmission belt. This rotation, in turn, drives the left feed screw 106 to rotate. The rotation of both feed screws 106 moves the welding moving frame 108, allowing for complete welding of sheet metal materials. During the downward movement of the welding sliding seat 112, the control rack 117 drives the control gear 116 to rotate. The rotation of the control gear 116 causes the protective baffle 115 to rotate, closing and covering the plasma arc welding head 113 to prevent sparks and fumes generated during plasma arc welding. During the rotation of the protective baffle 115, the extended baffle 120 will also rotate. The extended spring 121 allows the extended baffle 120 to press firmly against the sheet metal material. The spring 121's elastic potential energy can also accommodate sheet metal materials of varying thicknesses. After the protective baffle 115 closes, the momentary switch 119 will be inserted into the switch opening / closing hole 118. Since the depth of the switch opening / closing hole 118 is less than the button height of the momentary switch 119, the insertion of the momentary switch 119 into the switch opening / closing hole 118 will press down on the momentary switch 119. At this time, the momentary switch 119 will activate the fan body 124, causing the fan body 124 to draw the fumes generated during welding into the filter box 122.The flue gas is then filtered through activated carbon filter 123 before being discharged. Example 2

[0044] Based on Example 1, please refer to Figures 8 to 10 As shown, the system includes: an auxiliary slide plate 125, a fixing spring 126, a limiting rod 127, a fixing carriage 128, a locking socket 129, a return spring 130, and a fixing box 133. A fixing box 133 is fixedly connected to the exterior of each of the two filter boxes 122. An auxiliary slide plate 125 is slidably connected inside each of the two fixing boxes 133. A set of limiting rods 127 is fixedly connected to the top surface of each of the two auxiliary slide plates 125. The two sets of limiting rods 127 are respectively inserted into the two activated carbon filter screens 123. A set of fixing springs 126 and 137 are fixedly connected to the bottom surface of each of the two auxiliary slide plates 125. 26; The ends of the two sets of fixed springs 126 are respectively fixedly connected to the two fixed boxes 133; A fixed slide 128 is fixedly connected to the outside of each of the two auxiliary slides 125; The two fixed slides 128 are respectively slidably connected to the two fixed boxes 133; A locking socket 129 is slidably connected inside the two fixed slides 128; A set of return springs 130 is fixedly connected to the inside of each of the two locking sockets 129; The ends of the two sets of return springs 130 are respectively fixedly connected to the outside of the two fixed slides 128; The two locking sockets 129 are respectively inserted into the two fixed boxes 133.

[0045] The specific usage and function of this embodiment: In this invention, when it is necessary to replace the activated carbon filter 123, simply pull the locking socket 129 to slide the locking socket 129 and stretch the return spring 130. As the locking socket 129 slides, it will release the limitation on the fixed slide 128. At this time, the fixed slide 128 can be pulled to move the limiting rod 127 and squeeze the fixed spring 126. As the limiting rod 127 moves, it will release the limitation on the activated carbon filter 123. At this time, the activated carbon filter 123 can be removed for replacement.

[0046] The following points should be noted in this article:

[0047] 1. The accompanying drawings in this embodiment only involve the structures relevant to this embodiment; other structures can be referenced from general designs.

[0048] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0049] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An intelligent positioning welding device for automatic welding, comprising: A plasma arc welding base (1); a welding moving frame (108) is slidably connected inside the plasma arc welding base (1); a linear motor (109) is provided on the upper part of the welding moving frame (108); a mounting base (110) is fixedly connected to the outside of the linear motor (109); characterized in that a welding sliding seat (112) is slidably connected to the front part of the mounting base (110); a plasma arc welding head (113) is provided inside the welding sliding seat (112); the plasma arc welding head (113) and the plasma arc... The welding base (1) is aligned; the welding sliding seat (112) is symmetrically hinged to two protective guards (115); each of the two protective guards (115) is fixedly connected to a filter box (122); the air outlets of the two filter boxes (122) are respectively connected to the two protective guards (115) through air pipes; each of the two filter boxes (122) is slidably connected to an activated carbon filter screen (123); a fan body (124) is bolted to the two filter boxes (122); the two The blower body (124) is aligned with the positions of the two activated carbon filters (123); a mounting shell (102) is fixedly connected to the left end face of the plasma arc welding base (1); a sealing frame (131) is fixedly connected to the front end face of the plasma arc welding base (1); a control gear (116) is coaxially fixedly connected to the rear of the rotating shafts of the two protective baffles (115); two protective shells (114) are symmetrically fixedly connected to the outside of the mounting base (110); the two control gears (116) are respectively set in the protective shells (114) (115) (116) (114) (123) (12 ... 4) Inside; two control racks (117) are symmetrically fixedly connected to the outside of the mounting base (110); the two control racks (117) are respectively set inside the protective shell (114); the two control racks (117) are respectively meshed with two control gears (116); an extension bracket (120) is slidably connected inside each of the two protective brackets (115); a set of extension springs (121) is fixedly connected to the outside of each of the two extension brackets (120); the ends of the two sets of extension springs (121) are respectively fixedly connected inside the two extension brackets (120).

2. The intelligent positioning welding device for automatic welding according to claim 1, characterized in that: The plasma arc welding base (1) is symmetrically rotatably connected to two positioning double-ended screws (101); the threads at both ends of the two positioning double-ended screws (101) are opposite in direction; the two positioning double-ended screws (101) are symmetrically arranged on the front and rear sides of the plasma arc welding base (1); the two positioning double-ended screws (101) are symmetrically threaded to the outside of two positioning clamps (104); the two positioning clamps (104) are slidably connected inside the plasma arc welding base (1); the two positioning clamps (104) are symmetrically arranged on the left and right sides of the plasma arc welding base (1).

3. The intelligent positioning welding device for automatic welding according to claim 2, characterized in that: The left side of the aforementioned positioning double-ended screw (101) is provided with a first drive motor (103); the first drive motor (103) is bolted to the front of the left end of the mounting housing (102); the output shaft of the first drive motor (103) is coaxially fixedly connected to the front positioning double-ended screw (101); a first transmission pulley (105) is coaxially fixedly connected to the outside of each of the two positioning double-ended screws (101); the two first transmission pulleys (105) are connected by transmission; both first transmission pulleys (105) are set inside the mounting housing (102).

4. The intelligent positioning welding device for automatic welding of claim 1, wherein: The plasma arc welding base (1) is symmetrically rotatably connected to two feed screws (106); the two feed screws (106) are respectively set on the left and right sides of the plasma arc welding base (1); a sealing frame (131) is fixedly connected to the front end face of the plasma arc welding base (1); a second drive motor (132) is bolted to the front end face of the sealing frame (131); the second drive motor (132) is aligned with the right feed screw (106); the output shaft of the second drive motor (132) is coaxially fixedly connected to the right feed screw (106).

5. The intelligent positioning welding device for automatic welding according to claim 4, characterized in that: Both feed screws (106) are coaxially fixedly connected to a second transmission pulley (107); both second transmission pulleys (107) are set inside the sealing frame (131); the two second transmission pulleys (107) are connected by a transmission belt.

6. The intelligent positioning welding device for automatic welding of claim 1, wherein: An electric push rod (111) is bolted to the top surface of the mounting base (110); the end of the output shaft of the electric push rod (111) is fixedly connected to the top surface of the welding sliding seat (112).

7. The intelligent positioning welding device for automatic welding of claim 1, wherein: A momentary switch (119) is fixedly connected to the inner side of each of the two protective baffles (115); the two momentary switches (119) are electrically connected to the two fan bodies (124) respectively; a switch opening and closing hole (118) is opened on the inner side of each of the two protective baffles (115); the two switch opening and closing holes (118) are aligned with the positions of the two momentary switches (119) respectively.

8. The intelligent positioning welding device for automatic welding of claim 1, wherein: Each of the two filter boxes (122) is fixedly connected to a fixing box (133); an auxiliary sliding plate (125) is slidably connected inside each of the two fixing boxes (133); a set of limiting rods (127) is fixedly connected to the top surface of each of the two auxiliary sliding plates (125); the two sets of limiting rods (127) are respectively inserted into the two activated carbon filter screens (123); a set of fixing springs (126) is fixedly connected to the bottom surface of each of the two auxiliary sliding plates (125); the ends of the two sets of fixing springs (126) are respectively fixedly connected to the two fixing boxes (133). Inside; a fixed slide (128) is fixedly connected to the outside of each of the two auxiliary slides (125); the two fixed slides (128) are slidably connected to the inside of the two fixed boxes (133); a locking socket (129) is slidably connected inside the two fixed slides (128); a set of return springs (130) is fixedly connected to the inside of each of the two locking sockets (129); the ends of the two sets of return springs (130) are fixedly connected to the outside of the two fixed slides (128); the two locking sockets (129) are inserted into the two fixed boxes (133).

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