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CN-224209257-U - Projection welding tool for welding knuckle bracket of shock absorber

CN224209257UCN 224209257 UCN224209257 UCN 224209257UCN-224209257-U

Abstract

The utility model discloses a projection welding tool for welding a knuckle bracket of a shock absorber, which comprises a frame, wherein an upper cantilever and a lower cantilever which are vertically and oppositely distributed are arranged on one side of the frame, an air cylinder is arranged on the upper cantilever, an electrode is arranged on an output shaft of the air cylinder, the bottom surface of the electrode is an arc surface and is matched with the outer surface of an oil pipe bracket, a mounting hole is further formed in the electrode, a magnet for adsorbing the oil pipe bracket is arranged in the mounting hole, a projection welding frame is arranged on the lower cantilever, a core rod for installing the knuckle bracket is arranged on the projection welding frame, and the air cylinder and the electrode are respectively and electrically connected with a controller. When the automatic projection welding device is used, the oil pipe support and the knuckle support are respectively fixed on the electrode and the core rod, the electrode is driven by the air cylinder to descend until the oil pipe support contacts with the surface of the knuckle support, the electrode is electrified, the oil pipe support can be welded on the knuckle support, automatic projection welding of the knuckle support and the oil pipe support is achieved, welding efficiency is high, and labor cost is low.

Inventors

  • XIE JUNMING
  • FANG JUNYI
  • WANG YONG

Assignees

  • 西格迈股份有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (10)

  1. 1. The projection welding tool for welding the knuckle brackets of the shock absorbers is characterized by comprising a frame (1), wherein an upper cantilever (101) and a lower cantilever (102) which are vertically and oppositely distributed are arranged on one side of the frame (1), an air cylinder (2) is arranged on the upper cantilever (101), an electrode (3) is arranged on an output shaft of the air cylinder (2), the bottom surface of the electrode (3) is an arc-shaped surface and is used for being matched with the outer surface of an oil pipe bracket (15), a mounting hole (301) is further formed in the electrode (3), a magnet used for adsorbing the oil pipe bracket (15) is arranged in the mounting hole (301), a projection welding frame (4) is arranged on the lower cantilever (102), a core rod (5) is arranged on the projection welding frame (4), the core rod (5) is used for mounting the knuckle bracket (16), and the air cylinder (2) and the electrode (3) are electrically connected with a controller (6) respectively.
  2. 2. The projection welding tool for welding the knuckle brackets of the shock absorber, which is disclosed in claim 1, is characterized in that a positioning frame (7) is sleeved on the outer side of the electrode (3), and a positioning column (701) is arranged at the bottom of the positioning frame (7) and used for positioning the oil pipe bracket (15).
  3. 3. The projection welding tool for welding the knuckle bracket of the shock absorber, as set forth in claim 2, wherein the electrode (3) and the positioning frame (7) are fixed by pins.
  4. 4. The projection welding tool for welding the knuckle bracket of the shock absorber, as set forth in claim 2, wherein the electrode (3) is fixed on a mounting plate (8), and the mounting plate (8) is connected with an output shaft of the cylinder (2) through a connecting frame (9).
  5. 5. The projection welding tool for welding the knuckle bracket of the shock absorber of claim 4, wherein the connecting frame (9) comprises an upper connecting plate (901), a lower connecting plate (902) and a connecting column (903) arranged between the upper connecting plate (901) and the lower connecting plate (902), the upper connecting plate (901) is fixedly connected with an output shaft of the air cylinder (2), and the lower connecting plate (902) is fixedly connected with the mounting plate (8).
  6. 6. The projection welding tool for welding the knuckle bracket of the shock absorber, as set forth in claim 5, wherein a protective cover (10) is arranged on the outer side of the output shaft of the cylinder (2), and the protective cover (10) is fixed on the upper cantilever (101).
  7. 7. The projection welding tool for welding the knuckle bracket of the shock absorber, which is disclosed in claim 1, is characterized in that a positioning sleeve (11) is arranged on the projection welding bracket (4), and one end of the core rod (5) is inserted into the positioning sleeve (11) and is connected with the projection welding bracket (4) through a key.
  8. 8. The projection welding tool for welding the knuckle bracket of the shock absorber, which is disclosed in claim 7, is characterized in that a supporting block (12) is arranged below the end part of the core rod (5), the supporting block (12) is fixed on a sliding block of a pneumatic sliding table (13), and the pneumatic sliding table (13) is fixed on the projection welding bracket (4) and is electrically connected with the controller (6).
  9. 9. The projection welding tool for welding the knuckle bracket of the shock absorber of claim 8, wherein the projection welding frame (4) is L-shaped and comprises a transverse installation part (401) and a longitudinal installation part (402) which are detachably connected, the positioning sleeve (11) is fixed on the longitudinal installation part (402), and the pneumatic sliding table (13) is fixed on the transverse installation part (401).
  10. 10. The projection welding tool for welding the knuckle bracket of the shock absorber, as set forth in claim 8, is characterized in that the top of the frame (1) is provided with a gas storage tank (14).

Description

Projection welding tool for welding knuckle bracket of shock absorber Technical Field The utility model relates to the technical field of shock absorber production, in particular to a projection welding tool for welding a knuckle bracket of a shock absorber. Background In order to accelerate the damping of the vibration of the frame and the vehicle body and improve the running smoothness and comfort of the vehicle, the suspension system of most vehicles is internally provided with a shock absorber, and the shock absorber converts the impact and vibration of the road surface into heat energy or mechanical energy to relieve the vibration by connecting the suspension system with the vehicle body. In the prior art, when the shock absorber is installed, the upper end of the shock absorber is fixed on a vehicle body through a tower top or an upper support, and the lower end of the shock absorber is connected with a wheel bearing and a wheel hub through a knuckle. In order to avoid friction between the damper and the brake oil pipe or the ABS sensor harness during the assembly of the damper, it is also necessary to fix the brake oil pipe and the ABS sensor harness in a non-interfering position for the wheel rotation and suspension movement. Therefore, some manufacturers generally provide a knuckle bracket at the lower end of the damper for connection with the knuckle and an oil pipe bracket for fixing a brake oil pipe and an ABS sensor harness when producing the damper. At present, in order to improve the convenience of assembly, manufacturers usually weld the oil pipe bracket and the knuckle bracket together (as shown in fig. 1), and in view of this, the inventor develops a special projection welding tool for projection welding the knuckle bracket and the oil pipe bracket. Disclosure of utility model When the projection welding tool for welding the knuckle bracket of the shock absorber is used, the oil pipe bracket and the knuckle bracket are respectively fixed on the electrode and the core rod and driven by the cylinder to descend by the cylinder until the oil bracket contacts with the surface of the knuckle bracket, and the electrode is electrified, so that the oil pipe bracket can be welded on the knuckle bracket, the automatic projection welding of the knuckle bracket and the oil bracket is realized, the welding efficiency is high, the labor cost is low, and the connection strength between the knuckle bracket and the oil bracket after the welding is high and the integration degree is good. The technical scheme is that the projection welding tool for welding the knuckle bracket of the shock absorber comprises a frame, an upper cantilever and a lower cantilever which are vertically and oppositely distributed are arranged on one side of the frame, an air cylinder is arranged on the upper cantilever, an electrode is arranged on an output shaft of the air cylinder, the bottom surface of the electrode is an arc surface and is matched with the outer surface of an oil pipe bracket, a mounting hole is further formed in the electrode, a magnet for adsorbing the oil pipe bracket is arranged in the mounting hole, a projection welding frame is arranged on the lower cantilever, a core rod is arranged on the projection welding frame and is used for mounting the knuckle bracket, and the air cylinder and the electrode are respectively and electrically connected with a controller. Compared with the prior art, the projection welding tool for welding the knuckle bracket of the shock absorber comprises the electrodes and the core rods which are distributed up and down, and the electrodes are connected with the air cylinder and can move up and down under the driving of the air cylinder; when the welding device is used, the oil pipe support is fixed on the electrode (the bottom surface of the electrode is an arc surface matched with the outer peripheral surface of the oil pipe support, and the magnet used for adsorbing the oil pipe support is arranged on the electrode, so that the firmness of the oil pipe support after being installed is high, the welding cannot fall off), the knuckle support is sleeved on the core rod (the size of the core rod is smaller than the inner diameter of the knuckle support), the air cylinder drives the electrode to descend to the surface of the oil rack support to be in contact with the surface of the knuckle support, the electrode is electrified, the oil pipe support can be welded on the knuckle support, automatic projection welding of the knuckle support and the oil rack support is realized, the welding efficiency is high, the labor cost is low, and the connection strength between the knuckle support and the oil rack support after the welding is finished is high, and the integration degree is good. In the projection welding tool for welding the knuckle bracket of the shock absorber, a positioning frame is sleeved on the outer side of the electrode, and a positioning column is arranged at the bottom of