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CN-122007721-A - Beam low-stress welding method and system

CN122007721ACN 122007721 ACN122007721 ACN 122007721ACN-122007721-A

Abstract

The invention discloses a method and a system for welding a cross beam with low stress, which relate to the technical field of cross beam welding, wherein the device comprises a clamping tool, a supporting frame, a supporting plate, a processing box, a fixed baffle plate, a filter screen cylinder, a limiting frame, a third supporting frame, a fan, a sealing baffle plate and a first supporting frame, the inside of first carriage is horizontal equidistant sliding connection has a plurality of activated carbon plates, be provided with the shifter who is used for the convenient switch to two filter screen barrels on the processing case, be provided with the change mechanism that is used for the convenient change to activated carbon plate on the processing case. According to the invention, through the switching mechanism, the positions of the filter screen cylinder to be cleaned and the standby filter screen cylinder can be exchanged rapidly, the non-stop switching and maintenance of the two filter screen cylinders can be realized, the interruption of welding operation caused by the replacement of the filter screen cylinders is effectively avoided, the continuity and the production efficiency of the welding operation can be further improved, and the stability and the reliability of the filtering effect are effectively ensured.

Inventors

  • MA JIE
  • QI XIAOKANG
  • WANG ZHUO
  • Zhou Tanxiang
  • CHEN RUI

Assignees

  • 湘潭地通汽车制品有限公司
  • 地通工业控股集团股份有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (10)

  1. 1. The utility model provides a crossbeam low stress welding system, includes centre gripping frock (1), support frame (4) are installed to the bottom of centre gripping frock (1), backup pad (5) are installed to the one end of support frame (4), one end that support frame (5) kept away from support frame (4) is provided with treatment box (7), the internally mounted of treatment box (7) has fixed baffle (19), the top symmetry of fixed baffle (19) is provided with two filter screen barrels (18), two the equal fixedly connected with limit frame (17) in top of filter screen barrel (18), the bottom fixedly connected with third braced frame (16) of fixed baffle (19), fan (15) are installed to the one end of third braced frame (16), one side of treatment box (7) is provided with sealing baffle (11), one side fixedly connected with first braced frame (10) of sealing baffle (11), first braced frame (10) run through to the inside of treatment box (7), first braced frame (10) and treatment box (7) sliding connection, the bottom fixedly connected with third braced frame (16) of fixed connection has a third braced frame (16), and one end that carbon-plate (15) were kept away from to one side of sealing baffle (11) is located inside the horizontal one end of activity frame (9), the treatment box (7) is provided with a switching mechanism for conveniently switching the two filter screen drums (18); The switching mechanism comprises a switching cylinder (204) rotationally connected inside a processing box (7), wherein the switching cylinder (204) is positioned at the top end of a fixed partition plate (19), the switching cylinder (204) is rotationally connected with the fixed partition plate (19), a placing groove (205) for sliding the limiting frame (17) and the filter screen cylinder (18) is formed in the joint position of the switching cylinder (204) and the limiting frame (17) and the filter screen cylinder (18), a fixed sleeve frame (201) is fixedly connected inside the processing box (7), and a limiting chute for sliding the fixed sleeve frame (201) is formed in the joint position of the switching cylinder (204) and the fixed sleeve frame (201); the treatment box (7) is provided with a replacement mechanism for conveniently replacing the activated carbon plate (9).
  2. 2. The beam low stress welding system according to claim 1, wherein the switching mechanism further comprises a first transmission assembly provided on the treatment tank (7); The first transmission assembly comprises a first transmission gear (203) fixedly connected to the bottom end of the switching cylinder (204), the first transmission gear (203) is located inside the fixed partition plate (19), the first transmission gear (203) is rotationally connected with the fixed partition plate (19), a rack (206) is connected to the outer wall of the first transmission gear (203) in a meshed mode, the rack (206) is slidably connected with the fixed partition plate (19), a first electric push rod (202) is mounted on one side of the processing box (7), and the rack (206) is fixedly connected with the output end of the first electric push rod (202).
  3. 3. The beam low stress welding system according to claim 1, wherein the replacement mechanism comprises: an opening and closing component arranged on the processing box (7); The opening and closing assembly comprises a connecting frame (301) fixedly connected inside a processing box (7), wherein the connecting frame (301) is positioned between a first supporting frame (10) and a third supporting frame (16), the connecting frame (301) is fixedly connected with a fixed partition plate (19), a plugging baffle (3015) is slidingly connected inside the connecting frame (301), a plurality of first openings are longitudinally and equidistantly formed in the connecting frame (301), a plurality of second openings are longitudinally and equidistantly formed in the plugging baffle (3015), the first openings are respectively positioned at ports of the second openings, a second electric push rod (303) is arranged on one side of the processing box (7), the plugging baffle (3015) is fixedly connected with the output end of the second electric push rod (303), a first baffle pipe (304) is fixedly connected to the outer wall of one side of the processing box (7), two ends of the first baffle pipe (304) are respectively positioned at two ends of the third supporting frame (16), and the first electric push rod (3015) is positioned at one end far away from the air conveying seal (11); the treatment box (7) is provided with a locking assembly for limiting and locking the first supporting frame (10); And a positioning assembly for clamping and positioning the first supporting frame (10) is arranged on the first supporting frame (10).
  4. 4. The beam low-stress welding system according to claim 3, wherein the locking assembly comprises a plurality of connecting rods (309) fixedly connected to one side, far away from the sealing baffle plate (11), of the first supporting frame (10) in circumferential equidistance, butt-joint blocks (307) are fixedly connected to one side, far away from the first supporting frame (10), of the connecting rods (309), the outer wall, far away from the connecting rods (309), of the butt-joint blocks (307) is in a circular truncated cone shape, a second transmission gear (308) is rotatably connected to the inner part, far away from the sealing baffle plate (11), of the processing box (7), the second transmission gear (308) is in sliding sleeve joint with the outer walls of the connecting rods (309), an arc-shaped chute (306) for the connecting rods (309) to slide is formed in the joint position of the second transmission gear (308), and a butt-joint slot (305) for the butt-joint blocks (307) to slide is formed in one end, far away from the arc-shaped chute (306); And a second transmission assembly is arranged on the blocking baffle (3015).
  5. 5. The beam low-stress welding system according to claim 4, wherein the second transmission assembly comprises a transmission push rod (3014) fixedly connected to one side of the blocking baffle (3015) far away from the second electric push rod (303), the transmission push rod (3014) penetrates through the connecting frame (301) to the outside of one side of the processing box (7), the transmission push rod (3014) is in sliding connection with the connecting frame (301) and the processing box (7), a third transmission gear (3013) is sleeved on the outer wall of the transmission push rod (3014) in a sliding manner, two limiting rotating rings are symmetrically and fixedly connected to the outer wall of the third transmission gear (3013), the limiting rotating rings are both in rotating connection with the processing box (7), the third transmission gear (3013) is positioned at one end of the second transmission gear (308), and the third transmission gear (3013) is in meshed connection with the second transmission gear (308); and a guide assembly is arranged on the third transmission gear (3013).
  6. 6. The beam low stress welding system according to claim 5, wherein the guide assembly comprises: A plurality of guide sliding blocks (3016) which are fixedly connected on the inner wall of the third transmission gear (3013) at equal intervals in the circumferential direction, the outer walls of the guide sliding blocks (3016) are hemispherical, and a guide sliding groove for the guide sliding blocks (3016) to slide is formed in the position where the transmission push rod (3014) is connected with the guide sliding blocks (3016).
  7. 7. The beam low-stress welding system according to claim 3, wherein the positioning assembly comprises a limiting slide plate (3011) which is in sliding connection with the inside of one side of the first supporting frame (10), a plurality of positioning clamping blocks (302) are fixedly connected to the top end of the limiting slide plate (3011) at equal intervals in the transverse direction, the outer walls of the top ends of the positioning clamping blocks (302) are hemispherical, the positioning clamping blocks (302) penetrate through the first supporting frame (10) to the inside of the processing box (7), a plurality of limiting slide bars (3012) are fixedly connected to the bottom end of the limiting slide plate (3011) at equal intervals in the transverse direction, and the positioning clamping blocks (302) and the limiting slide bars (3012) are in sliding connection with the first supporting frame (10); And a reset component is arranged on the limiting slide rod (3012).
  8. 8. The beam low stress welding system according to claim 7, wherein the reset assembly comprises a spring (3010) sleeved on the outer wall of the limit slide bar (3012), one end of the spring (3010) is in contact with the outer wall of the limit slide bar (3011), and the other end of the spring (3010) is in contact with the inner wall of the first support frame (10).
  9. 9. The beam low-stress welding system according to claim 1, wherein an exhaust port (8) is formed in one end, far away from the supporting plate (5), of the treatment box (7), a dust screen is mounted in the exhaust port (8), a turnover cover plate (6) is rotatably connected to the top end, far away from one end, of the supporting plate (5), of the treatment box (7), a second air pipe (13) is mounted on the top end of the treatment box (7), the second air pipe (13) is located one end of the turnover cover plate (6), a discharge port is formed in the fixed partition plate (19), the discharge port is located below the second air pipe (13), two third air pipes (14) are symmetrically and fixedly connected to the outer wall of the second air pipe (13), an air collecting hopper (12) is arranged above the clamping tool (1), and the two third air pipes (14) penetrate through the supporting plate (5) and are fixedly connected with the air collecting hopper (12).
  10. 10. A method of using the beam low stress welding system according to any of claims 1-9, comprising the steps of: The method comprises the steps that firstly, a workpiece is placed on a clamping tool (1), at the moment, the clamping tool (1) clamps and fixes the workpiece through a three-dimensional reference positioning system and a grading clamping pressure control system, then the workpiece is welded and formed through a robot under low stress, in the process, a fan (15) is started to convey air, so that smoke generated by welding can enter an inner cavity of a treatment box (7) through negative pressure, at the moment, particle impurities in the smoke can be primarily filtered through a filter screen cylinder (18), the primarily filtered smoke moves to the lower part of a fixed partition plate (19) through a discharge hole, then passes through a third supporting frame (16), a connecting frame (301), a first supporting frame (10) and a dust screen to the outer part of one end of the treatment box (7) under the discharge and conveying of the fan (15), at the moment, harmful substances in the smoke can be adsorbed through a plurality of active carbon plates (9), and thus the smoke can be conveniently treated; when the filter screen barrels (18) need to be replaced, the turnover cover plate (6) is turned over and opened, the other filter screen barrel (18) is placed in the switching barrel (204), the positions of the two filter screen barrels (18) can be conveniently switched through the switching mechanism, and at the moment, one filter screen barrel (18) can be taken out, so that the filter screen barrel (18) can be conveniently cleaned; When the activated carbon plate (9) needs to be replaced, the sealing baffle (11) is pulled to drive the first supporting frame (10) to move to the outside of one side of the processing box (7), so that a plurality of activated carbon plates (9) can be replaced conveniently, the first supporting frame (10) is inserted into the processing box (7), the first supporting frame (10) can be clamped and positioned conveniently through the positioning clamping blocks (302) at the moment under the action of negative pressure, the fan (15) is moved to one side far away from the third supporting frame (16) through the first air conveying pipe (304), the situation that the smoke leaks in the replacement process of the activated carbon plate (9) is effectively avoided, the sealing baffle (11) is pulled to drive the first supporting frame (10) to move to the outside of one side of the processing box (7), and the first supporting frame (10) can be locked and fixed conveniently, and the sealing baffle (16) can be removed simultaneously.

Description

Beam low-stress welding method and system Technical Field The invention relates to the technical field of beam welding, in particular to a beam low-stress welding method and system. Background The torsion beam is a non-independent (also called semi-independent) suspension structure applied to the rear wheels of automobiles, is formed by connecting a U-shaped or V-shaped cross beam with left and right wheels, matching springs and shock absorbers, jolt motions of single-side wheels during operation cause torsion deformation of the cross beam, balance the shaking of an automobile body through elastic characteristics, the existing torsion beam is required to clamp and fix torsion Liang Gongjian through a three-dimensional reference positioning system and a hierarchical clamping pressure control system by means of clamping equipment in the production process, and the torsion beam is welded and formed through a robot in a low-stress mode. In the welding and forming process of the torsion beam, smoke generated by welding contains harmful components such as metal oxide particles, nitrogen oxides and the like, precision equipment is damaged or the surface of a workpiece is polluted, and meanwhile, the combustible components in the smoke can possibly cause fire explosion, so that the smoke needs to be collected and filtered. The prior clamping equipment for auxiliary welding is used for extracting smoke through a fan generally and filtering the smoke through a filter screen cylinder and an active carbon plate, and the treatment effect of the filter screen cylinder and the active carbon plate on the smoke is gradually reduced after the filter screen cylinder and the active carbon plate are used for a long time, so that the filter screen cylinder and the active carbon plate are required to be replaced, but when the filter screen cylinder and the active carbon plate are replaced, the operation of the equipment is required to be stopped in order to avoid the diffusion of unfiltered welding smoke to the surrounding environment, so that the welding forming operation of the torsion beam cannot be performed during the replacement of the filter screen cylinder and the active carbon plate. Disclosure of Invention The invention aims to provide a beam low-stress welding method and a beam low-stress welding system, which are used for solving the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: the cross beam low-stress welding system comprises a clamping tool, wherein a supporting frame is arranged at the bottom end of the clamping tool, a supporting plate is arranged at one end of the supporting frame, a treatment box is arranged at one end of the supporting plate, which is far away from the supporting frame, a fixed partition plate is arranged in the treatment box, two filter screen cylinders are symmetrically arranged above the fixed partition plate, the top ends of the two filter screen cylinders are fixedly connected with limiting frames, a third supporting frame is fixedly connected with the bottom end of the fixed partition plate, a fan is arranged at one end of the third supporting frame, a sealing baffle is arranged at one side of the treatment box, a first supporting frame is fixedly connected with one side of the sealing baffle, the first supporting frame penetrates into the treatment box, the first supporting frame is in sliding connection with the treatment box, the first supporting frame is positioned at one end, which is far away from the fan, of the third supporting frame, a plurality of active carbon plates are transversely and equidistantly and slidably connected in the inside of the first supporting frame, and a switching mechanism for conveniently switching the two filter screen cylinders is arranged on the treatment box; The switching mechanism comprises: the switching cylinder is rotatably connected inside the treatment box and is positioned at the top end of the fixed partition plate, the switching cylinder is rotatably connected with the fixed partition plate, a placing groove for sliding the limiting frame and the filter screen cylinder is formed in the position where the switching cylinder is connected with the limiting frame and the filter screen cylinder, a fixed sleeve frame is fixedly connected inside the treatment box, and a limiting chute for sliding the fixed sleeve frame is formed in the position where the switching cylinder is connected with the fixed sleeve frame; The treatment box is provided with a replacement mechanism for conveniently replacing the activated carbon plate. Based on the technical scheme, the invention also provides the following optional technical schemes: in an alternative, the switching mechanism further comprises: A first transmission assembly disposed on the processing tank; the first transmission assembly comprises: The first transmission gear of fixed connection in the section