A processing device for parts welding

Abstract

The present invention relates to the technical field of parts welding and fixing, and specifically, to a processing device for parts welding. It includes a positioning seat and a clamping frame arranged on the positioning seat, the positioning seat includes an upper cover and a lower receiving member, and the clamping frame is composed of two clamping members. When the two clamping members are in contact with each other, the two clamping members clamp the parts to be welded, and at the same time, the clamping frame is rotatably arranged inside the positioning seat, and a transmission member is arranged on the lower side of the lower receiving member. When one end of the transmission member moves downward, the transmission member and the clamping member contact, and after the transmission member and the clamping member contact, the transmission member drives the clamping member to rotate. The present invention clamps and fixes one of the parts by two clamping arc plates, and then the worker steps on the transmission member to make the transmission member drive the clamping arc plate to rotate, so that the clamping arc plate drives the part to rotate, and the worker welds the welding position between the two parts after the rotation of the part stops.

Description

Technical Field

[0001] The invention relates to the technical field of parts welding and fixing, in particular to a processing device for parts welding. Background Art

[0002] During the parts processing process, the parts will be welded so that two separate parts are welded together. During the welding process, in order to ensure that the two parts can be stably welded together, the parts will be rotated and then welded to ensure that the two parts are stably welded together.

[0003] When welding parts, workers use welding rods to weld the contact positions of the two parts. After welding is completed, the workers rotate the parts by hand to flip the unwelded positions of the parts over, and then weld the parts to completely weld the two parts together. However, during the welding process, the workers need to stop welding and then rotate the parts. After the parts are adjusted to a certain position, they weld the parts again. When workers use this welding method, they increase the number of welding steps during the welding process, prolong the time it takes to weld the two parts together, and thus reduce the speed at which the parts are welded together. At the same time, when the objects to be welded are heavy, it is inconvenient for workers to flip the parts over, so a device is needed to assist in the welding of the parts. Summary of the invention

[0004] The object of the present invention is to provide a processing device for parts welding to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, a processing device for parts welding is provided, including a positioning seat and a clamping frame arranged on the positioning seat, the positioning seat supports the clamping frame, the positioning seat includes an upper cover and a lower supporting member, the clamping frame is composed of two clamping members, one ends of the two clamping members are hinged to each other, the upper cover and the lower cover are respectively slidably connected to a clamping member, and when the two clamping members are in contact with each other, the two clamping members clamp the parts to be welded, and at the same time, the clamping frame is rotatably arranged inside the positioning seat, and a transmission member is arranged on the lower side of the lower supporting member, when one end of the transmission member moves downward, the transmission member and the clamping member contact, and after the transmission member and the clamping member contact, the transmission member drives the clamping member to rotate, and after the transmission member and the clamping member are in stable contact, the transmission member positions the clamping member.

[0006] As a further improvement of the present technical solution, the positioning seat includes two arc-shaped receiving arc plates, which are arranged up and down, and the two receiving arc plates are combined to form a cylindrical tube. The clamping member includes an arc-shaped clamping arc plate, which is combined to form a cylindrical tube, and the clamping arc plate is slidably arranged on the inner side wall of the receiving arc plate.

[0007] As a further improvement of the technical solution, clamping rings are fixed at both ends of the clamping arc plate, and one end of the receiving arc plate is arranged between the clamping arc plate. The two clamping rings restrict and fix the receiving arc plate and the clamping arc plate together. At the same time, a plurality of sliding grooves are opened on the side wall of the clamping arc plate, and a sliding bar corresponding to the sliding groove is fixed on the inner side wall of the receiving arc plate, and the sliding bar is slidably arranged in the sliding groove.

[0008] As a further improvement of the technical solution, one end of the two clamping arc plates are hinged, and the other ends of the two clamping arc plates are connected by snaps. A plurality of clamping strips are fixed on the inner side walls of the clamping arc plates, and the clamping strips are Z-shaped. The parts to be welded are inserted between the two clamping arc plates, and the plurality of clamping strips clamp and fix the parts.

[0009] As a further improvement of the present technical solution, the transmission member includes a pull rod, which is provided with a plurality of teeth, a through groove is provided on the receiving arc plate, and a plurality of tooth grooves are provided on the outer wall of the clamping arc plate. The plurality of tooth grooves on the two clamping arc plates form a ring. The pull rod is arranged in the through groove on the receiving arc plate located on the lower side. When one end of the pull rod is pulled, the teeth on the pull rod enter into the tooth grooves, so that the pull rod drives the clamping arc plate to rotate between the two receiving arc plates, and when the pull rod stops moving, the pull rod positions the position of the clamping arc plate.

[0010] As a further improvement of the present technical solution, a placement box is fixed on the side wall of the receiving arc plate near one end of the through groove, one end of the pull rod extends into the interior of the placement box and is fixed with a return spring, one end of the return spring is fixed on the side wall of the placement box, and when the pull rod is pulled to move in a direction away from the return spring, the return spring pulls one end of the pull rod.

[0011] As a further improvement of the present technical solution, a roller is hinged on the outer side wall of the receiving arc plate at the other end of the through groove, one end of the pull rod is slidably set on the roller, and a pedal is fixed at one end of the pull rod, a positioning box fixed on the receiving arc plate is set on one side of the roller, the pedal is slidably set in the positioning box, and a plurality of return springs are arranged between the pedal and the positioning box, and when the pedal is subjected to downward force, the pedal drives one end of the pull rod to move downward, so that the pull rod pulls the return spring.

[0012] As a further improvement of the present technical solution, when the pull rod is pulled, the pull rod moves upward, so that the teeth on the pull rod engage with the tooth grooves, and during the movement of the pull rod, the pull rod pulls the clamping arc plate, so that the clamping arc plate rotates between the two receiving arc plates.

[0013] As a further improvement of the technical solution, a plurality of base frames are arranged on the lower side of the receiving arc plate, the base frames are fixed on the lower side of the through groove, the plurality of base frames are arranged in an arc shape, and a slide is slidably arranged on the base frames, a thrust spring is installed between the base frames and the slide, and the thrust spring drives the slide away from the receiving arc plate.

[0014] As a further improvement of the present technical solution, a sliding pin is fixed to one end of the slide close to the receiving arc plate, and pin grooves are provided on both sides of the pull rod. One end of the sliding pin is slidably set in the pin groove. When the pull rod is pulled close to the clamping arc plate, the pull rod drives the slide close to the clamping arc plate. When the pull rod is not pulled, the slide drives the pull rod away from the clamping arc plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the processing device for welding parts, one of the parts is clamped and fixed by two clamping arc plates, and then the worker steps on the transmission member to make the transmission member drive the clamping arc plate to rotate, so that the clamping arc plate drives the part to rotate. After the rotation of the part stops, the worker welds the welding position between the two parts, eliminating the trouble of the worker rotating when welding the two parts, and speeding up the worker's welding speed of the two parts.

[0017] 2. In the processing device for welding the parts, the clamping arc plate is driven to rotate when the transmission part is stepped on. When the pedal moves to the lowest position, the teeth and tooth grooves on the pull rod are engaged, so that the position of the clamping arc plate is positioned. At this time, the workers weld the positioned parts to ensure the accuracy of the welding between the two parts, which is convenient for the workers to weld the two parts together.

[0018] 3. In the processing device for welding the parts, a slide is arranged on the base frame, and the pull rod is pulled by a sliding pin. When the pedal moves up, the slide pulls the pull rod to make the pull rod quickly move away from the clamping arc plate, so that the transmission member releases the positioning of the clamping arc plate. At the same time, the pull rod is pulled by a return spring to restore the pull rod to its original position. When the worker steps on the pedal again, the pull rod can drive the clamping arc plate to rotate again, so that the worker can weld the parts at multiple angles during the welding process to ensure a stable connection between the two parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the structure of the overall device of the present invention when clamping a part;

[0020] Figure 2 It is a schematic diagram of the structure of the overall device of the present invention when no parts are clamped;

[0021] Figure 3 It is a schematic diagram of the combined structure of a partial positioning seat and a transmission member of the present invention;

[0022] Figure 4 It is a schematic diagram of the combined structure of the clamping frame and the transmission member of the present invention;

[0023] Figure 5 It is a schematic diagram of the positioning seat structure of the present invention;

[0024] Figure 6 It is a schematic cross-sectional structure diagram of a part of the positioning seat of the present invention;

[0025] Figure 7 This is one of the schematic diagrams of the clamping frame structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the transmission structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0028] The meaning of each number in the figure is:

[0029] 1. Positioning seat; 11. Receiving arc plate; 12. Through slot; 13. Roller; 14. Positioning box; 15. Base frame; 16. Sliding frame; 161. Thrust spring; 162. Sliding pin; 17. Placement box; 18. Sliding bar;

[0030] 2. Clamping frame; 21. Clamping arc plate; 22. Tooth groove; 23. Slide groove; 24. Snap ring; 25. Clamping strip;

[0031] 3. Transmission part; 31. Pull rod; 32. Pull back spring; 33. Pedal; 34. Return spring; 35. Pin groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] Example 1

[0035] When welding parts, workers use welding rods to weld the contact positions of the two parts. After welding is completed, the workers rotate the parts by hand to flip the unwelded positions of the parts over, and then weld the parts to completely weld the two parts together. However, during the welding process, the workers need to stop welding and then rotate the parts. After the parts are adjusted to a certain position, they weld the parts again. When workers use this welding method, they increase the number of welding steps during the welding process, prolong the time it takes to weld the two parts together, and thus reduce the speed at which the parts are welded together. At the same time, when the objects to be welded are heavy, it is inconvenient for workers to flip the parts over, so a device is needed to assist in the welding of the parts.

[0036] To avoid having to stop welding to flip the part, refer to Figure 1-Figure 4 As shown, the purpose of this embodiment is to provide a processing device for parts welding, including a positioning seat 1 and a clamping frame 2 arranged on the positioning seat 1, the positioning seat 1 supports the clamping frame 2, wherein the positioning seat 1 includes an upper cover and a lower support, the clamping frame 2 is composed of two clamping members, one end of the two clamping members is hinged to each other, the upper cover and the lower cover are respectively slidably connected to a clamping member, and when the two clamping members are in contact with each other, the two clamping members clamp the parts to be welded, and at the same time the clamping frame 2 is rotatably arranged inside the positioning seat 1, and a transmission member 3 is arranged on the lower side of the lower support, when one end of the transmission member 3 moves downward, the transmission member 3 and the clamping member contact, and after the transmission member 3 and the clamping member contact, the transmission member 3 drives the clamping member to rotate, so that the clamping member drives the parts to rotate, and adjusts the welding position of the parts, so that the workers can weld the unwelded positions of the two parts.

[0037] At the same time, after the transmission member 3 and the clamping member are in stable contact, the transmission member 3 positions the clamping member so that the clamping member fixes the position of the parts, so that the worker can weld the contact position of the two parts.

[0038] The following references Figure 1-Figure 9As shown, the structures of the positioning seat 1, the clamping frame 2 and the transmission member 3 are refined, wherein the positioning seat 1 includes two arc-shaped receiving arc plates 11, the two receiving arc plates 11 are arranged up and down, and the two receiving arc plates 11 are combined to form a cylindrical tube, the clamping member includes an arc-shaped clamping arc plate 21, the two clamping arc plates 21 are combined to form a cylindrical tube, the clamping arc plate 21 is slidably arranged on the inner side wall of the receiving arc plate 11, that is, the tubular structure formed by the combination of the two receiving arc plates 11 sleeves the tubular structure formed by the combination of the two clamping arc plates 21 inside, and the tubular structure formed by the combination of the two clamping arc plates 21 can be rotated inside the tubular structure formed by the combination of the two receiving arc plates 11.

[0039] In order to improve the rotation stability between the receiving arc plate 11 and the clamping arc plate 21, a snap ring 24 is fixed at both ends of the clamping arc plate 21, and one end of the receiving arc plate 11 is arranged between the snap ring 24 and the clamping arc plate 21, so that the snap ring 24 limits the position of the receiving arc plate 11 on one side of the clamping arc plate 21, so that the two snap rings 24 limit and fix the receiving arc plate 11 and the clamping arc plate 21 together, and at the same time, a plurality of slide grooves 23 are opened on the side wall of the clamping arc plate 21, and a plurality of slide grooves 23 are fixed on the inner side wall of the receiving arc plate 11. There is a slide bar 18 corresponding to the slide groove 23, and the slide bar 18 is slidably set in the slide groove 23. Through the sliding connection between the slide groove 23 and the slide bar 18, the clamping arc plate 21 and the receiving arc plate 11 can only slide and rotate, but cannot slide along the extension direction of the axis of the clamping arc plate 21 and the receiving arc plate 11, so as to ensure the sliding trajectory between the clamping arc plate 21 and the receiving arc plate 11, so that the receiving arc plate 11 and the clamping arc plate 21 always slide around the direction of the axis of the receiving arc plate 11 and the clamping arc plate 21.

[0040] In order to enable the two clamping arc plates 21 to clamp the parts, one end of the two clamping arc plates 21 is hinged, and the other ends of the two clamping arc plates 21 are connected by snaps, so that the two clamping arc plates 21 are tightly connected together, and the parts to be fixed are placed between the two clamping arc plates 21. In order to fix the position of the parts placed between the two clamping arc plates 21, a plurality of clamping strips 25 are fixed on the inner side wall of the clamping arc plates 21. The clamping strip 25 is Z-shaped, and one end of the clamping strip 25 extends toward the center axis of the clamping arc plates 21. The two clamping arc plates 21 are flipped open, and then the parts to be welded are inserted into one of the clamping arc plates 21, and the clamping strip 25 contacts the parts. Then the other clamping arc plate 21 is flipped down, so that the two clamping arc plates 21 are in close contact. The parts are clamped and fixed by a plurality of clamping strips 25, so that the parts are fixed between the two clamping arc plates 21.

[0041] When welding parts, one end of another part is welded to the part fixed by the clamping arc plate 21 to preliminarily position the two parts together. When the other part is heavier, an integral device of the present invention can be installed, and then the other part is also clamped and fixed. Then the worker welds the contact position of the two parts to fix the two parts together.

[0042] When the transmission member 3 is stepped on, the clamping arc plate 21 is driven to rotate. When the pedal 33 moves to the lowest position, the teeth on the pull rod 31 and the tooth grooves 22 are engaged, so that the position of the clamping arc plate 21 is positioned. At this time, the worker welds the positioned parts to ensure the accuracy of welding between the two parts, which is convenient for the worker to weld the two parts together. The transmission member 3 includes a pull rod 31, and a plurality of teeth are arranged on the pull rod 31. A through groove 12 is provided on the receiving arc plate 11, and a plurality of tooth grooves 22 are provided on the outer wall of the clamping arc plate 21. The plurality of tooth grooves 22 on the two clamping arc plates 21 form a ring. The pull rod 31 is arranged on the receiving arc plate 11 at the lower side. In the through groove 12 on the arc receiving plate 11, when one end of the pull rod 31 is pulled, the teeth on the pull rod 31 enter the tooth groove 22, so that the pull rod 31 drives the clamping arc plate 21 to rotate between the two receiving arc plates 11, and the clamping arc plate 21 drives the parts to rotate, changing the welding position of the parts, making it convenient for workers to weld the unwelded positions of the parts, eliminating the trouble of manually rotating the parts. At the same time, when the pull rod 31 stops moving, the pull rod 31 locates the position of the clamping arc plate 21, and the teeth on the pull rod 31 are in the tooth groove 22, so that the position of the clamping arc plate 21 in the receiving arc plate 11 is fixed, thereby fixing the position of the parts, making it convenient for workers to weld the two parts.

[0043] In order to facilitate the movement of the pull rod 31, the pull rod 31 drives the clamping arc plate 21 to rotate, and a placement box 17 is fixed on the side wall of the receiving arc plate 11 near one end of the through slot 12. One end of the pull rod 31 extends into the interior of the placement box 17 and is fixed with a return spring 32. One end of the return spring 32 is fixed to the side wall of the placement box 17. When the pull rod 31 is pulled to move in a direction away from the return spring 32, the return spring 32 pulls one end of the pull rod 31. At the same time, a roller shaft 13 is hinged on the outer side wall of the receiving arc plate 11 at the other end of the through slot 12. One end of the pull rod 31 is slidably set on the roller shaft 13, and a pedal 33 is fixed to one end of the pull rod 31. A positioning box 14 fixed on the receiving arc plate 11 is provided on one side of the roller shaft 13, and a pedal 33 is slidably arranged in the positioning box 14, and a plurality of return springs 34 are arranged between the pedal 33 and the positioning box 14. When the pedal 33 is subjected to downward force, the pedal 33 drives one end of the pull rod 31 to move downward, so that the pull rod 31 pulls the return spring 32, and the return spring 32 begins to stretch under the force. When the pull rod 31 is pulled, the pull rod 31 moves upward, so that the teeth on the pull rod 31 are engaged with the tooth grooves 22, and in the process of the movement of the pull rod 31, the pull rod 31 pulls the clamping arc plate 21, so that the clamping arc plate 21 rotates between the two receiving arc plates 11.

[0044] When the pedal 33 moves downward to the lowest position, the pull rod 31 stops pushing. At this time, the pull rod 31 is in a taut state, and the teeth on the pull rod 31 are in the tooth grooves 22. The position of the clamping arc plate 21 is fixed through the engagement of the teeth and the tooth grooves 22, so that the position of the parts clamped by the clamping arc plate 21 is fixed, and the workers can then weld the parts.

[0045] After the worker has finished welding, he does not step on the pedal 33. At this time, the return spring 32 pulls the pull rod 31. At this time, the teeth on the pull rod 31 are still in the tooth groove 22. The pull rod 31 pulled by the return spring 32 will drive the clamping arc plate 21 to rotate in the opposite direction. When the clamping arc plate 21 rotates in the opposite direction, it will drive the parts to rotate in the opposite direction. The reverse rotation will rotate the welded position on the parts in front of the worker, affecting the worker's next operation. In order to facilitate the workers to weld the parts and prevent the clamping arc plate 21 from rotating in the opposite direction, a plurality of base frames 15 are arranged on the lower side of the receiving arc plate 11 located on the lower side. The base frames 15 are fixed on On the lower side of the through groove 12, several base frames 15 are arranged in an arc shape, and a slide 16 is slidably arranged on the base frame 15. A thrust spring 161 is installed between the base frame 15 and the slide 16. The thrust spring 161 drives the slide 16 away from the receiving arc plate 11. At the same time, a sliding pin 162 is fixed to the end of the slide 16 close to the receiving arc plate 11. Pin grooves 35 are opened on both sides of the pull rod 31. One end of the sliding pin 162 is slidably set in the pin groove 35. When the pull rod 31 is pulled close to the clamping arc plate 21, the pull rod 31 drives the slide 16 close to the clamping arc plate 21. When the pull rod 31 is not pulled, the slide 16 drives the pull rod 31 away from the clamping arc plate 21.

[0046] When the pedal 33 is stepped on, the pull rod 31 moves up, and the pull rod 31 pulls the sliding pin 162 through the pin groove 35, so that the slide 16 is close to the clamping arc plate 21. At this time, the thrust spring 161 is squeezed and contracted, and the moving pull rod 31 drives the clamping arc plate 21 to rotate. When the pedal 33 does not move, the position of the clamping arc plate 21 is fixed. The worker welds the two parts. When the welding of the parts facing the worker is completed, the worker steps on the pedal 33 without lowering it. At this time, the return spring 34 pushes the pedal 33 to move up, and the pull-back spring 32 pushes the pull rod 31. Pulling causes the pull rod 31 to move in the opposite direction, and at the same time, the thrust spring 161 drives the slide 16 downward to separate the teeth and tooth grooves 22 on the pull rod 31, so as to prevent the pull rod 31 from moving in the opposite direction and driving the clamping arc plate 21 to rotate in the opposite direction. At the same time, when the worker continuously steps on the pedal 33, the transmission part 3 drives the clamping arc plate 21 to rotate continuously, making it easier for the worker to weld other positions of the part. At the same time, the part is driven to rotate by the clamping arc plate 21, which eliminates the trouble of manually rotating the part and speeds up the worker's welding of the part.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A processing device for parts welding, comprising a positioning seat (1) and a clamping frame (2) arranged on the positioning seat (1), wherein the positioning seat (1) receives the clamping frame (2), and is characterized in that: The positioning seat (1) comprises an upper cover and a lower receiving member, the clamping frame (2) comprises two clamping members, one ends of the two clamping members are hinged to each other, the upper cover and the lower cover are respectively slidably connected to a clamping member, and when the two clamping members are in contact with each other, the two clamping members clamp the parts to be welded, and at the same time, the clamping frame (2) is rotatably arranged inside the positioning seat (1), and a transmission member (3) is arranged on the lower side of the lower receiving member, when one end of the transmission member (3) moves downward, the transmission member (3) contacts the clamping member, and after the transmission member (3) contacts the clamping member, the transmission member (3) drives the clamping member to rotate, and after the transmission member (3) and the clamping member are in stable contact, the transmission member (3) positions the clamping member; The positioning seat (1) comprises two arc-shaped receiving arc plates (11), the two receiving arc plates (11) are arranged up and down, and the two receiving arc plates (11) are combined to form a cylindrical tube; the clamping member comprises an arc-shaped clamping arc plate (21), the two clamping arc plates (21) are combined to form a cylindrical tube, and the clamping arc plate (21) is slidably arranged on the inner side wall of the receiving arc plate (11); The transmission member (3) comprises a pull rod (31), a plurality of teeth are arranged on the pull rod (31), a through groove (12) is opened on the receiving arc plate (11), a plurality of tooth grooves (22) are opened on the outer wall of the clamping arc plate (21), and the plurality of tooth grooves (22) on the two clamping arc plates (21) form a ring, the pull rod (31) is arranged in the through groove (12) on the receiving arc plate (11) located on the lower side, when one end of the pull rod (31) is pulled, the teeth on the pull rod (31) enter the tooth grooves (22), so that the pull rod (31) drives the clamping arc plate (21) to rotate between the two receiving arc plates (11), and when the pull rod (31) stops moving, the pull rod (31) locates the position of the clamping arc plate (21); A placement box (17) is fixed on the side wall of the receiving arc plate (11) near one end of the through slot (12); one end of the pull bar (31) extends into the interior of the placement box (17) and is fixed with a return spring (32); one end of the return spring (32) is fixed on the side wall of the placement box (17); when the pull bar (31) is pulled to move in a direction away from the return spring (32), the return spring (32) pulls one end of the pull bar (31); A roller shaft (13) is hingedly connected to the outer wall of the receiving arc plate (11) at the other end of the through groove (12); one end of the pull rod (31) is slidably arranged on the roller shaft (13); and a pedal (33) is fixed to one end of the pull rod (31); a positioning box (14) fixed to the receiving arc plate (11) is arranged on one side of the roller shaft (13); the pedal (33) is slidably arranged in the positioning box (14); and a plurality of return springs (34) are arranged between the pedal (33) and the positioning box (14); when the pedal (33) is subjected to downward force, the pedal (33) drives one end of the pull rod (31) to move downward, so that the pull rod (31) pulls the return spring (32); When the pull rod (31) is pulled, the pull rod (31) moves upward, so that the teeth on the pull rod (31) mesh with the tooth grooves (22), and during the movement of the pull rod (31), the pull rod (31) pulls the clamping arc plate (21), so that the clamping arc plate (21) rotates between the two receiving arc plates (11); A plurality of base frames (15) are arranged on the lower side of the receiving arc plate (11) located on the lower side. The base frames (15) are fixed on the lower side of the through groove (12). The plurality of base frames (15) are arranged in an arc shape, and a slide frame (16) is slidably arranged on the base frame (15). A thrust spring (161) is installed between the base frame (15) and the slide frame (16). The thrust spring (161) drives the slide frame (16) away from the receiving arc plate (11). A sliding pin (162) is fixed to one end of the slide (16) close to the receiving arc plate (11), and pin grooves (35) are provided on both sides of the pull rod (31). One end of the sliding pin (162) is slidably arranged in the pin groove (35). When the pull rod (31) is pulled close to the clamping arc plate (21), the pull rod (31) drives the slide (16) close to the clamping arc plate (21); when the pull rod (31) is not pulled, the slide (16) drives the pull rod (31) away from the clamping arc plate (21).

2. The processing device for parts welding according to claim 1, characterized in that: A clamping ring (24) is fixed at both ends of the clamping arc plate (21), and one end of the receiving arc plate (11) is arranged between the clamping arc plate (21), and the two clamping rings (24) restrict and fix the receiving arc plate (11) and the clamping arc plate (21) together. At the same time, a plurality of sliding grooves (23) are opened on the side wall of the clamping arc plate (21), and a sliding bar (18) corresponding to the sliding groove (23) is fixed on the inner side wall of the receiving arc plate (11), and the sliding bar (18) is slidably arranged in the sliding groove (23).

3. The processing device for parts welding according to claim 1, characterized in that: One end of the two clamping arc plates (21) is hinged, and the other ends of the two clamping arc plates (21) are connected by a buckle. A plurality of clamping strips (25) are fixed on the inner side wall of the clamping arc plates (21), and the clamping strips (25) are Z-shaped. Parts to be welded are inserted between the two clamping arc plates (21), and the plurality of clamping strips (25) clamp and fix the parts.

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