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CN-121972899-A - Automotive suspension welding device

CN121972899ACN 121972899 ACN121972899 ACN 121972899ACN-121972899-A

Abstract

The invention provides an automobile suspension welding device which comprises a frame, a sleeve positioning mechanism, a body clamping mechanism and a welding mechanism, wherein the sleeve positioning mechanism comprises a base, a centering assembly, an axial compression assembly, a triggering assembly and a driving assembly, the body clamping mechanism clamps a control arm body on an automobile suspension and controls the control arm body to be abutted against a positioned sleeve, the welding mechanism is used for welding the joint of the control arm body and the sleeve, the sleeve radial self-adaptive positioning, the axial accurate limiting and the stable butt joint of the control arm body are realized in the whole process, customized positioning expansion pins are not needed, the sleeves with different pipe diameters and different length specifications can be quickly adapted, the fitting cost and the replacement time are greatly reduced, the production efficiency and the welding precision of the sleeve welding of the control arm are improved, and the technical problems that the universality of the traditional welding device is poor, the positioning parts need to be replaced when the sleeves with different specifications are adapted, and the production efficiency is low are solved.

Inventors

  • ZOU QIANQIAN
  • LIU WEI

Assignees

  • 江苏威科特汽车零部件有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (8)

  1. 1. An automotive suspension welding device, characterized by comprising: A frame; The sleeve positioning mechanism comprises a base, a centering assembly, an axial compression assembly, a trigger assembly and a driving assembly, wherein the base is arranged on the frame, the centering assembly comprises a plurality of positioning units which are uniformly distributed in the circumferential direction, the positioning units comprise a sliding block and a positioning rod, the sliding block is arranged on the base in a sliding mode along the radial direction of the centering assembly, the positioning rod is arranged on the sliding block in a sliding mode along the sliding direction of the sliding block and is mutually perpendicular to the base, the axial compression assembly is arranged on a plurality of positioning rods in a sliding mode along the length direction of the positioning rod, the driving assembly drives the sliding blocks to synchronously slide, and after the positioning rods are abutted against the inner side walls of the sleeve and slide to the limit positions on the sliding block, the trigger assembly triggers the axial compression assembly to act so as to compress the sleeve; The body clamping mechanism clamps a control arm body on an automobile suspension and controls the control arm body to be abutted with the positioned sleeve, and And the welding mechanism is used for welding the joint of the control arm body and the sleeve.
  2. 2. The automobile suspension welding device is characterized in that the axial compression assembly comprises a pressing sleeve, a transmission arm, a mounting seat and an extension spring, the pressing sleeve and the transmission arm are arranged in one-to-one correspondence with the positioning rod, the pressing sleeve is arranged on the positioning rod in a sliding mode, one end of the transmission arm is hinged to the pressing sleeve, the lower end of the extension spring is fixed to the base, the upper end of the extension spring is fixed to the mounting seat, the other ends of the transmission arms, far away from the pressing sleeve, are hinged to the mounting seat, and the triggering assembly controls the pressing sleeve to be fixed and separated from the positioning rod.
  3. 3. The automobile suspension welding device is characterized in that the triggering assembly comprises a plurality of triggering units which are arranged in one-to-one correspondence with a positioning rod, the triggering units comprise a limiting block, a reset spring, a gear, a rotating shaft, a pull rope, a rack, a first piston, a second piston and a limiting spring, one end of the limiting block is slidably inserted on the positioning rod along the sliding direction of the sliding block, an inclined surface is arranged at the lower edge of the other end of the limiting block, a limiting groove matched with the other end of the limiting block is formed in the inner side wall of a pressing sleeve, the reset spring applies an outward elastic force to the limiting block, the rotating shaft is rotatably arranged on the positioning rod, the gear is coaxially fixed with the rotating shaft, one end of the pull rope is fixed with the rotating shaft, the other end of the pull rope is fixed with one end of the inner side of the limiting block so as to pull the limiting block to slide inwards, the rack is slidably arranged on the positioning rod in the vertical direction, the rack is meshed with the gear, a first cavity and a second cavity which are mutually communicated, the inner side wall of the pressing sleeve is formed in the inner side of the limiting rod, the rotating shaft is rotatably arranged on the inner side of the positioning rod, the first cavity and the first piston is connected with the first piston and the other end of the first piston which is slidably arranged in the sliding direction, and the other side of the first piston is far away from the first piston and fixedly arranged on the side of the first piston.
  4. 4. The automobile suspension welding device according to claim 1, wherein the driving assembly comprises a screw rod, a nut seat, a connecting arm and a motor, the screw rod is vertically and rotatably arranged on the base, the nut seat is in threaded connection with the screw rod, the connecting arm is in one-to-one correspondence with the sliding blocks, one end of the connecting arm is hinged with the corresponding sliding block, the other end of the connecting arm is hinged with the nut seat, and the motor drives the screw rod to rotate.
  5. 5. The welding device for automotive suspension according to claim 4, wherein the two ends of the positioning rod are provided with a sliding block, a screw rod, a nut seat and a connecting arm, and the two connecting arms are coaxially fixed.
  6. 6. The automotive suspension welding device according to claim 1 is characterized in that the body clamping mechanism comprises clamping jaws and telescopic members, wherein the clamping jaws are mounted on the frame through the telescopic members, and the telescopic members are telescopic in the direction of the sleeve positioning mechanism.
  7. 7. The automotive suspension welding apparatus according to claim 2, further comprising a lifting assembly and a laser ranging sensor, wherein the body holding mechanism is mounted on the frame via the lifting assembly, and the laser ranging sensor is mounted on the base to measure a sliding distance of the push-down bush to adjust a height of the body holding mechanism on the lifting assembly so that the control arm body on the body holding mechanism is aligned with the sleeve in a height direction.
  8. 8. The apparatus of claim 1, wherein the welding mechanism comprises a robot arm and a welding gun mounted on the robot arm.

Description

Automotive suspension welding device Technical Field The invention relates to the technical field of automobile suspension welding, in particular to an automobile suspension welding device. Background The automobile suspension is a core force transmission and guide device connected with a vehicle body and wheels, is used for buffering road impact, transmitting vertical, longitudinal and lateral loads, restraining the movement track of the wheels to ensure the running stability, operability and riding comfort of the vehicle, and the structural performance of the automobile suspension directly determines the working quality of a chassis of the vehicle. In the production process of a control arm on an automobile suspension, a sleeve is usually required to be welded on a control arm body, for example, patent publication No. CN114769821B discloses an automobile control arm sleeve welding clamp which comprises an upper clamp and a lower clamp, wherein the lower clamp comprises a first angle adjusting component, a second angle adjusting component and a fixing component, the fixing component is connected with the first angle adjusting component through the second angle adjusting component, the first angle adjusting component comprises a fixed supporting frame, a first angle adjusting plate and a first angle adjusting device, the fixed supporting frame can be fixed on a workbench surface, the first angle adjusting plate is arranged on the fixed supporting frame through the first angle adjusting device, the second angle adjusting component comprises a main mounting plate and a second angle adjusting device, the main mounting plate is arranged on the first angle adjusting plate through the second angle adjusting device, and the fixing component is used for being connected with the upper clamp in a matching manner so as to clamp the control arm sleeve. However, when the welding device is used for positioning the sleeve, the positioning expansion pin is of a customized structural design, and when the sleeve is processed and replaced by the control arm sleeve with different pipe diameters and different length specifications, the matched positioning expansion pin is required to be replaced synchronously, so that the quick adaptation to the sleeve with different specifications cannot be realized, the universality is poor, the replacement time cost and the accessory cost are increased, and the integral welding production efficiency of the control arm sleeve is reduced. Disclosure of Invention The invention aims at solving the problems in the prior art that when the existing welding device is used for positioning the sleeve, the positioning expansion pin is of a customized structural design, and when the sleeve is processed and replaced by a control arm sleeve with different pipe diameters and different length specifications, the matched positioning expansion pin is required to be replaced synchronously, so that the quick adaptation of the sleeve with different specifications cannot be realized, the universality is poor, the replacement time cost and the accessory cost are increased, and the integral welding production efficiency of the control arm sleeve is reduced. In order to solve the technical problems, the invention adopts the following technical scheme that the automobile suspension welding device comprises: A frame; The sleeve positioning mechanism comprises a base, a centering assembly, an axial compression assembly, a trigger assembly and a driving assembly, wherein the base is arranged on the frame, the centering assembly comprises a plurality of positioning units which are uniformly distributed in the circumferential direction, the positioning units comprise a sliding block and a positioning rod, the sliding block is arranged on the base in a sliding mode along the radial direction of the centering assembly, the positioning rod is arranged on the sliding block in a sliding mode along the sliding direction of the sliding block and is mutually perpendicular to the base, the axial compression assembly is arranged on a plurality of positioning rods in a sliding mode along the length direction of the positioning rod, the driving assembly drives the sliding blocks to synchronously slide, and after the positioning rods are abutted against the inner side walls of the sleeve and slide to the limit positions on the sliding block, the trigger assembly triggers the axial compression assembly to act so as to compress the sleeve; The body clamping mechanism clamps a control arm body on an automobile suspension and controls the control arm body to be abutted with the positioned sleeve, and And the welding mechanism is used for welding the joint of the control arm body and the sleeve. The axial compression assembly comprises a pressing sleeve, a transmission arm, an installation seat and an extension spring, wherein the pressing sleeve and the transmission arm are arranged in one-to-one correspondence with the positioning rod, t