Search

CN-122007587-A - Resistance welding machine for machining automobile parts

CN122007587ACN 122007587 ACN122007587 ACN 122007587ACN-122007587-A

Abstract

The invention relates to the technical field of spot welding and discloses a resistance welding machine for machining automobile accessories, which comprises a workbench, wherein the upper surface of the workbench is fixedly connected with a rack, a screw rod is rotatably connected inside the rack, the outer surface of the screw rod is sleeved with a lifting seat which is in sliding connection with the outer surface of the rack, the welding part comprises an upper pole seat which is fixedly connected with the inner part of the lifting seat, and the upper surface of the workbench is fixedly connected with a lower pole seat. This resistance welding machine that auto-parts processing was used can solve among the prior art effectively, when processing to the bearing holder welding of car, and conventional resistance welding machine's universal fixture can't form the laminating contact with the arc spheroid surface of bearing holder, needs manual intervention to accomplish the clamping of bearing holder, causes axial displacement or radial float easily, leads to the solder joint to deviate from the linking arm central region of predetermineeing, and then influences bearing holder concatenation quality's problem.

Inventors

  • LIU JIANLONG
  • LONG JIANYU
  • SUN YANQIAO
  • LIN XINGFU

Assignees

  • 寰电智控科技(广东)有限公司

Dates

Publication Date
20260512
Application Date
20260209

Claims (8)

  1. 1. A resistance welder for automotive parts machining, comprising: the automatic lifting device comprises a workbench (1), wherein a rack (11) is fixedly connected to the upper surface of the workbench (1), a screw rod (12) is rotatably connected to the interior of the rack (11), and a lifting seat (13) which is slidably connected with the outer surface of the rack (11) is sleeved on the outer surface of the screw rod (12); The welding part (2), the welding part (2) comprises an upper electrode seat (21) fixedly connected with the inside of the lifting seat (13), the upper surface of the workbench (1) is fixedly connected with a lower electrode seat (22), and the lower electrode seat (22) is slidably connected with an electrode block (221) through a conductive groove arranged on the upper surface of the lower electrode seat; the locating part (3), locating part (3) are including setting up last setting element (31) at last utmost point seat (21) lower surface and setting up lower setting element (32) at lower utmost point seat (22) upper surface, the upper surface of lower utmost point seat (22) is provided with interior propping up structure (33), lower setting element (32) are including seting up spout (220) at lower utmost point seat (22) upper surface, the inside sliding connection of spout (220) has slider (321).
  2. 2. The electric resistance welder for machining automobile parts according to claim 1, wherein a conductive plate (211) is embedded in the middle of the upper electrode base (21), a guide rail (212) connected with the lower surface of the upper electrode base (21) is fixedly connected to the outer surface of the conductive plate (211), and an electrode rod (213) is slidingly connected to the inside of the guide rail (212).
  3. 3. The electric resistance welder for machining automobile parts according to claim 2, wherein the upper positioning piece (31) comprises a sliding seat (311) which is slidably connected with the lower surface of the upper pole seat (21), a connecting seat (312) is fixedly connected with the bottom end of the sliding seat (311), the electrode rods (213) and the connecting seat (312) are distributed in a staggered mode along the circumferential direction of the upper pole seat (21), vertical rods (313) are slidably connected inside the connecting seat (312), the lower surface of the vertical rods (313) penetrates through the connecting seat (312) and is fixedly connected with a pressing ring (314), the upper surface of the vertical rods (313) penetrates through the connecting seat (312) and is fixedly connected with a limiting block, and the lower surface of the connecting seat (312) is connected with an upper spring (315) sleeved on the outer surface of the vertical rods (313).
  4. 4. The electric resistance welder for machining automobile parts according to claim 3, wherein the outer surface of the electrode rod (213) is sleeved with an annular seat (316), and a linkage rod (317) fixedly connected with the outer surface of the connecting seat (312) is connected inside the annular seat (316) in a sliding manner.
  5. 5. The electric resistance welder for machining automobile parts according to claim 3, wherein a connecting rod (322) is connected inside the sliding block (321), a supporting ring (323) is fixedly connected to the top end of the connecting rod (322), the supporting ring (314) and the supporting ring (323) adopt the same structural design, a lower spring (324) connected with the lower surface of the supporting ring (323) is sleeved on the outer surface of the connecting rod (322), and the bottom end of the lower spring (324) is connected with the upper surface of the sliding block (321).
  6. 6. The electric resistance welder for machining automobile parts of claim 5, wherein the cross sections of the supporting ring (323) and the pressing ring (314) are semi-circular and are attached to the outer surface of the bearing retainer.
  7. 7. The electric resistance welder for machining automobile parts according to claim 5, wherein the electrode blocks (221) and the sliding blocks (321) are distributed in a staggered manner along the circumferential direction of the lower electrode base (22).
  8. 8. The electric resistance welder for machining automobile parts according to claim 1, wherein the inner supporting structure (33) comprises a telescopic rod (331), the inside of the lower pole base (22) is in transmission connection with the bottom end of the telescopic rod (331), the top end of the telescopic rod (331) penetrates through the lower pole base (22) and is fixedly connected with a circular plate (332), the outer surface of the circular plate (332) is rotationally connected with a connecting rod (333), one end, far away from the circular plate (332), of the connecting rod (333) is rotationally connected with an L-shaped plate (334) in sliding connection with the upper surface of the lower pole base (22), and one side, far away from the circular plate (332), of the L-shaped plate (334) is fixedly connected with the outer surface of the electrode block (221).

Description

Resistance welding machine for machining automobile parts Technical Field The invention relates to the technical field of spot welding, in particular to a resistance welding machine for machining automobile parts. Background The arc spot welding is a welding technology using an electric arc as a heat source, and is a technology for forming point-shaped connection by locally melting contact points of metal weldments with the arc height Wen Jiangxiang stack. The deep groove ball bearing is used as a core part of an automobile transmission system, a chassis suspension and motor equipment, and the wave-shaped retainer bears key functions of uniformly separating rolling bodies, guiding movement tracks and transmitting loads. In the prior art, the bearing retainer accessory of the automobile is formed by combining two thin-shell wave structures formed by stamping, wherein arc spheres are distributed in a periodical arc shape, a universal fixture of a conventional resistance welding machine cannot form fit contact with the surface of the arc spheres of the bearing retainer, manual intervention is needed to complete clamping of the bearing retainer, axial offset or radial play is easy to occur, welding spots deviate from a preset connecting arm center area, and accordingly splicing quality of the bearing retainer is affected. Disclosure of Invention Aiming at the defects existing in the prior art, the invention provides a resistance welder for processing automobile accessories, which can effectively solve the problems that in the prior art, automobile bearing retainer accessories are formed by combining two thin shell wave structures formed by punching, arc-shaped spheres are distributed in a periodic arc shape, a general clamp of a conventional resistance welder cannot form fit contact with the surface of the arc-shaped spheres of a bearing retainer, manual intervention is required to complete clamping of the bearing retainer, axial offset or radial play is easy to cause, welding spots deviate from a preset connecting arm center area, and the splicing quality of the bearing retainer is further affected. In order to achieve the above purpose, the invention is realized by the following technical scheme: The invention provides a resistance welder for processing automobile parts, which comprises: The workbench is fixedly connected with a rack on the upper surface of the workbench, a screw rod is rotatably connected in the rack, and a lifting seat which is slidably connected with the outer surface of the rack is sleeved on the outer surface of the screw rod; the welding part comprises an upper electrode seat fixedly connected with the inside of the lifting seat, the upper surface of the workbench is fixedly connected with a lower electrode seat, the lower electrode seat is slidably connected with electrode blocks through conductive grooves formed in the upper surface of the lower electrode seat, and the electrode blocks are provided with a plurality of electrode blocks and distributed along the circumferential array of the lower electrode seat; The locating part, the locating part is including setting up the last setting element of last polar seat lower surface and setting up the lower setting element at lower polar seat upper surface, the upper surface of lower polar seat is provided with interior support structure, lower setting element is including seting up the spout at lower polar seat upper surface, the inside sliding connection of spout has the slider. Further, the middle part of the upper pole seat is embedded with a conductive plate, the outer surface of the conductive plate is fixedly connected with a guide rail connected with the lower surface of the upper pole seat, and the inside of the guide rail is slidably connected with an electrode rod. Further, go up the setting element include with last polar seat lower surface sliding connection's sliding seat, the bottom fixedly connected with connecting seat of sliding seat, electrode rod, connecting seat are crisscross to be distributed along last polar seat circumferencial direction, the inside sliding connection of connecting seat has the perpendicular pole, the lower surface of perpendicular pole runs through connecting seat and fixedly connected with support the clamping ring, the upper surface of perpendicular pole runs through connecting seat and fixedly connected with stopper, the lower surface of connecting seat is connected with the cover and establishes the last spring at the perpendicular pole surface. Further, the outer surface of the electrode rod is sleeved with an annular seat, and a linkage rod fixedly connected with the outer surface of the connecting seat is connected inside the annular seat in a sliding manner. Further, the inside sliding connection of slider has the connecting rod, the top fixedly connected with support ring of connecting rod, support the clamping ring and adopt the same structural design with the support ring, the surface co