CN119216859B

CN119216859B - A welding and inspection integrated machine for shock absorbers

Info

Publication number: CN119216859B
Application number: CN202411721731.5A
Authority: CN
Inventors: 王冬
Original assignee: Chengdu Dongqi Intelligent Equipment Co ltd
Current assignee: Chengdu Dongqi Intelligent Equipment Co ltd
Priority date: 2024-11-28
Filing date: 2024-11-28
Publication date: 2025-03-25
Anticipated expiration: 2044-11-28
Also published as: CN119216859A

Abstract

The present invention relates to a welding and inspection integrated machine for shock absorbers, comprising a housing, a welding robot and a rotating station, wherein the welding robot and the rotating station are arranged in the housing, and further comprising a chassis, a tensioning assembly, a spring disk positioning clamping assembly and a U-shaped part positioning assembly, wherein the chassis is installed on the rotating station, the tensioning assembly is vertically installed at the hollow part of the chassis, a workpiece is sleeved on the tensioning assembly, a spring disk is installed in the middle of the workpiece, a U-shaped part is installed on the top of the workpiece, the spring disk positioning clamping assembly is used to clamp the spring disk, the U-shaped part positioning assembly is used to position the U-shaped part, and the spring disk positioning clamping assembly and the U-shaped part positioning assembly cooperate to make the center line of the spring disk and the center line of the U-shaped part be in the same vertical plane. By using the spring disk positioning clamping assembly and the U-shaped part positioning assembly to cooperate, the spring disk and the U-shaped part preliminarily assembled on the workpiece are subjected to orientation detection, thereby realizing a welding and inspection integrated design, avoiding welding of workpieces that do not meet the assembly accuracy, and reducing costs.

Description

Welding and detecting integrated machine for shock absorber

Technical Field

The invention relates to the technical field of welding, in particular to a welding and detecting integrated machine for a shock absorber.

Background

Automobile shock absorbers, also known as shock absorbers or shock absorbers, are a critical component of an automobile suspension system. Their main function is to absorb and reduce shocks and vibrations of the vehicle due to road surface irregularities during running, thereby improving riding comfort and increasing vehicle stability.

The shock absorber is generally formed by welding a shock absorber cylinder, a spring disc and a U-shaped frame, as in application number 202410702089.X, a full-automatic welding processing line and a full-automatic welding processing method for shock absorber parts are disclosed, but the welding structure can only realize the normal shock absorber cylinder, the spring disc and the U-shaped part are automatically welded, and the existing welding equipment is similar.

Disclosure of Invention

In view of the above, it is necessary to provide a welding inspection integrated machine for a damper.

The utility model provides a all-in-one is examined with welding to bumper shock absorber, includes the casing, welding robot and rotatory station set up in the casing, welding robot and rotatory station one-to-one set up, still including the chassis, the tight subassembly of expansion, spring holder location clamp assembly and U type spare locating component, the chassis is installed on rotatory station, the middle fretwork of chassis, the vertical fretwork department of installing at the chassis of the tight subassembly that expands, the work piece cover is established on the tight subassembly that expands, the middle part of work piece is equipped with the spring holder, the top of work piece is equipped with the U type spare, spring holder location clamp assembly is used for the centre gripping spring holder, U type spare locating component is used for fixing a position the U type spare, the spring holder is the slope setting, spring holder location clamp assembly and U type spare locating component cooperation make the well separated time of spring holder be in same vertical face with the well separated time of U type spare.

Preferably, the spring disc positioning and clamping assembly comprises a positioning pin, a plurality of distance sensors and a plurality of clamps, wherein the positioning pin and the plurality of distance sensors are vertically arranged on the chassis, the positioning pin penetrates through positioning holes in the spring disc, a sensing head of the distance sensor is located under the spring disc, the plurality of clamps are arranged on the edge of the chassis, and the clamps are used for clamping the edge of the spring disc.

Preferably, the clamp comprises a bracket, a first cylinder and a turnover clamp, wherein the bracket is arranged on the side part of the chassis, the first cylinder is arranged on the bracket, the output end of the first cylinder faces upwards and is connected with the turnover clamp, and the turnover clamp clamps the edge part of the spring disc.

Preferably, the overturning clamp is provided with a welding chip stopping plate.

Preferably, the tight subassembly expands includes the driving piece, the sleeve, and the lifter, a plurality of tight piece that expands, the driving piece is installed in the chassis, the sleeve mounting is on the chassis, the lifter activity alternates in the sleeve, the output and the lifter of driving piece are connected, drive the lifter and go up and down in the sleeve, the groove has been dodged to telescopic upper end lateral wall, and a plurality of tight piece one-to-one movable mounting that expands is dodging the inslot, tight piece outside cover that expands is equipped with the ring spring, the upper end of lifter is the pointed cone form, the upper end and the tight inboard movable butt that expands of piece of lifter.

Preferably, the lower part of the sleeve is provided with an air inlet hole, the top of the sleeve is provided with an air outlet hole, and the air inlet hole is communicated with the air outlet hole.

Preferably, the sleeve is rotatable.

Preferably, the U-shaped piece positioning component comprises a second air cylinder, a steering gear, a bracket and a cushion block, wherein the second air cylinder is connected with the chassis, the output end of the second air cylinder is connected with the bracket through the steering gear to drive the bracket to rotate, the cushion block is arranged at the front end of the bracket, and the cushion block is embedded in the U-shaped piece.

Preferably, a third cylinder is arranged on the bracket, and the output end of the third cylinder is connected with the cushion block through a connecting rod to drive the cushion block to be close to or far away from the U-shaped piece.

Preferably, the cushion block is provided with an inductor, the side part of the cushion block is provided with a spring head, and the induction rod penetrates through the cushion block and is connected with the spring head.

The welding and detecting integrated device has the advantages that the spring disc positioning and clamping assembly is matched with the U-shaped piece positioning assembly, so that workpieces can be clamped in the welding process, the position of the spring disc and the U-shaped piece which are initially assembled on the workpieces can be detected, the welding and detecting integrated design is realized, the tool cost is not increased, the detecting function of welding the workpieces with the welding materials is improved, the workpieces which do not meet the assembly precision are prevented from being welded, and the cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of a whole machine of a welding inspection integrated machine for a shock absorber according to an embodiment;

FIG. 2 is a schematic diagram of a welding inspection integrated machine for a shock absorber partially assembled with a workpiece;

FIG. 3 is a schematic side view of a workpiece;

FIG. 4 is a schematic top view of a workpiece;

FIG. 5 is a schematic view of a partial explosion of a welding inspection integrated machine for a shock absorber;

FIG. 6 is a schematic perspective view of a clamp;

FIG. 7 is a schematic perspective view of a U-shaped member positioning assembly;

Reference numerals:

The welding machine comprises a machine shell, a 200-welding robot, a 300-rotating station, a 400-workpiece, a 401-spring plate, a 402-U-shaped piece, a 1-chassis, a 2-expansion assembly, a 21-driving piece, a 22-sleeve, a 221-avoidance groove, a 222-air inlet hole, a 223-air outlet hole, a 23-lifting rod, a 24-expansion block, a 3-spring plate positioning clamping assembly, a 31-positioning pin, a 32-distance sensor, a 33-clamp, a 331-bracket, a 332-first cylinder, a 333-turnover clamp, a 3331-welding scrap blocking plate, a 4-U-shaped piece positioning assembly, a 41-second cylinder, a 42-steering gear, a 43-bracket, a 431-third cylinder, a 44-cushion, a 441-sensor, a 442-spring head and a 443-sensing rod.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-5, a welding inspection all-in-one machine for a shock absorber comprises a machine shell 100, a welding robot 200 and a rotating station 300, wherein the welding robot 200 and the rotating station 300 are arranged in the machine shell 100, the welding robot 200 and the rotating station 300 are arranged in a one-to-one correspondence manner, the welding inspection all-in-one machine further comprises a chassis 1, a spring disc positioning and clamping assembly 2, a spring disc positioning and clamping assembly 3 and a U-shaped piece positioning assembly 4, the chassis 1 is arranged on the rotating station 300, the spring disc positioning and clamping assembly 3 and the U-shaped piece positioning assembly 4 are arranged at the edge of the chassis 1, the middle of the chassis 1 is hollowed out, the spring disc positioning and clamping assembly 2 is vertically arranged at the hollowed-out part of the chassis 1, a workpiece 400 is sleeved on the expansion assembly 2, a spring disc 401 is arranged in the middle of the workpiece 400, the top of the workpiece 400 is provided with a U-shaped piece 402, the spring disc positioning and clamping assembly 3 is used for clamping the spring disc 401, the U-shaped piece positioning assembly 4 is used for positioning the U-shaped piece 402, and the spring disc 401 is obliquely arranged, and the spring disc positioning and clamping assembly 3 and the U-shaped piece positioning assembly 4 are matched with the spring disc positioning and the U-shaped piece 401 to be positioned on the same vertical plane as the straight line of the disc 401. Specifically, in this embodiment, the welding and inspection integrated machine is designed in a double-station manner, that is, there are two sets of welding robots 200 and rotating stations 300, and the welding robots 200 and the rotating stations 300 are arranged in a one-to-one correspondence manner, so that workpieces 400 on the welding robots are conveniently welded, and the double-station operation is facilitated, and the welding efficiency is improved. In other embodiments, other numbers of stations may be designed as desired, without limitation. The rotating station 300 can drive the chassis 1 arranged on the rotating station to rotate, so as to drive the workpiece 400 to rotate, and the workpiece 400 is conveniently put in or taken out by a manual or mechanical arm. The chassis 1 is hollowed out in the middle, the expansion assembly 2 is conveniently placed, during feeding, the workpiece 400 is directly sleeved on the expansion assembly 2, the functional part of the expansion assembly 2 is expanded outwards, the workpiece 400 is further expanded, and vibration deflection dislocation of the workpiece 400 in the welding process is avoided, so that welding precision is reduced. The top of work piece 400 is equipped with U type spare 402, and the middle part is equipped with spring holder 401, all relies on U type spare 402 and spring holder 401 self stress assembly during the assembly, and is comparatively not hard up, consequently need carry out welding operation, welds spring holder 401 and U type spare 402 and the stack shell of work piece 400 as an organic whole. The top of the cylinder of the work 400 is provided with a gasket for sealing, and the gasket is welded to the cylinder of the work to seal the upper end of the work 400. Thus three welding operations are required. Before welding operation, because the spring disc 401 is assembled obliquely, the middle branching of the spring disc 401 and the middle branching of the U-shaped piece 402 are required to be detected and ensured to be in the same vertical plane, the spring disc positioning and clamping assembly 3 is used for clamping the spring disc 401, the U-shaped piece positioning assembly 4 is used for positioning the U-shaped piece 402, when the spring disc positioning and clamping assembly 3 and the U-shaped piece positioning assembly 4 cooperate to detect that the middle branching of the spring disc 401 and the U-shaped piece 402 are in the same vertical plane, the spring disc 401 and the U-shaped piece 402 are not assembled to be misplaced, and subsequent welding operation can be performed, if the background controller sends out warning information, the spring disc positioning and clamping assembly 3 and the U-shaped piece positioning assembly 4 are separated from the workpiece 400, blanking is performed, the welding operation on the defective semi-finished workpiece 400 with misplaced assembly is avoided, further welding cost is saved, the welding time is avoided to be wasted on the defective workpiece 400, and the welding efficiency of the good workpiece 400 is ensured.

As shown in fig. 2 and 5, the spring holder positioning and clamping assembly 3 includes a positioning pin 31, a plurality of distance sensors 32 and a plurality of clamps 33, wherein the positioning pin 31 and the plurality of distance sensors 32 are vertically installed on the chassis 1, the positioning pin 31 penetrates through a positioning hole on the spring holder 401, a sensing head of the distance sensor 32 is located under the spring holder 401, the plurality of clamps 33 are installed on the edge of the chassis 1, and the clamps 33 are used for clamping the edge of the spring holder 401. Specifically, in this embodiment, during loading and assembling of the workpiece 400, the positioning pin 31 penetrates through the positioning hole on the disk surface of the spring plate 401, and positions and determines the orientation of the spring plate 401. In this embodiment, because the disc surface of the spring disc 401 is inclined, three distance sensors 32 are annularly distributed below the spring disc 401, the distance sensors 32 are used for detecting the height of the lower disc surface of the spring disc 401 and feeding back detection information to the background controller, if the distance between the disc surface of the spring disc 401 and the distance sensors 32 is detected to be within a preset range, the background controller controls the clamp 33 to act to clamp the spring disc 401, and displacement of the spring disc 401 is avoided when subsequent welding operation is performed. If not, the spring disc 401 is unqualified in assembly, misplacement exists, the workpiece 400 is required to be fed for reassembling, welding operation on unqualified workpieces is avoided, semi-finished raw materials are avoided being wasted, and cost is reduced.

As shown in fig. 5-6, the fixture 33 includes a bracket 331, a first cylinder 332 and a turnover clamp 333, the bracket 331 is mounted on the side of the chassis 1, the first cylinder 332 is mounted on the bracket 331, and the output end faces upwards and is connected with the turnover clamp 333, and the turnover clamp 333 clamps the edge of the spring disc 401. Specifically, in this embodiment, the output end of the first cylinder 332 stretches, and the turnover clamp 333 is driven to rotate, so that the edge of the spring disc 401 can be clamped by matching with the boss at the top of the bracket 331. The clamping structure of the tool is simple and is not described in detail herein.

As shown in fig. 6, the turning clip 333 is provided with a welding dust stop plate 3331. Specifically, the chip stop plate 3331 is used to prevent spark spatter during welding.

As shown in fig. 5, the expansion assembly 2 includes a driving member 21, a sleeve 22, a lifting rod 23, and a plurality of expansion blocks 24, the driving member 21 is installed in the chassis 1, the sleeve 22 is installed on the chassis 1, the lifting rod 23 is movably inserted in the sleeve 22, an output end of the driving member 21 is connected with the lifting rod 23, the lifting rod 23 is driven to lift in the sleeve 22, an avoidance groove 221 is formed in a side wall of an upper end of the sleeve 22, the expansion blocks 24 are movably installed in the avoidance groove 221 in a one-to-one correspondence manner, a ring spring is sleeved outside the expansion blocks 24, an upper end of the lifting rod 23 is in a pointed cone shape, and an upper end of the lifting rod 23 is movably abutted against an inner side of the expansion blocks 24. Specifically, in the present embodiment, the driving member 21 may be an air cylinder, an electric push rod, or the like, so long as the lifting rod 23 can be driven to lift in the sleeve 22. When the lifting rod 23 ascends, the pointed cone part at the top of the lifting rod contacts with the inner sides of the expansion blocks 24, and the lifting rod continues to ascend, so that the expansion blocks 24 can be extruded to expand outwards along the radial direction of the sleeve 22, and in order to prevent the expansion blocks 24 from falling out of the avoidance grooves 221, the ring springs are hooped on the outer sides of the expansion blocks 24, and when the expansion blocks expand outwards, the ring springs are stressed and synchronously stretched. The barrel of the workpiece 400 can be expanded from the inner side by utilizing the expansion block 24, so that the workpiece 400 is prevented from being subjected to vibration displacement in the welding process, the suspension height of the workpiece 400 is maintained, and other clamping fixtures are not needed.

As shown in fig. 5, the lower part of the sleeve 22 is provided with an air inlet hole 222, the top of the sleeve 22 is provided with an air outlet hole 223, and the air inlet hole 222 is communicated with the air outlet hole 223. Specifically, during welding, the external air pipe is used for introducing nitrogen into the sleeve 22 through the air inlet hole 222, and the nitrogen is discharged from the air outlet hole 223 at the top of the sleeve 22, so that the oxidation of the welding seam of the gasket for plugging at the top of the welding workpiece 400 is reduced, the oxidation corrosion problem in the welding process is reduced, and the welding quality is improved.

As shown in fig. 5, the sleeve 22 is rotatable. Specifically, the sleeve 22 may be driven to rotate by an external drive via a belt or gear structure, thereby driving the workpiece 400 to rotate, and fine-tuning the orientation of the workpiece 400 such that the U-shaped member 402 is aligned with the U-shaped member positioning assembly 4. It can be appreciated that when the workpiece 400 is tensioned by the expansion block 24, the inner side of the expansion block 24 is supported in the radial direction by the top of the lifting rod 23, and when the expansion block 24 rotates along with the sleeve 22, the lifting rod 23 is kept still, and in order to reduce the friction force generated when the expansion block 24 rotates relative to the lifting rod 23, a circle of balls are arranged on the periphery of the lifting rod 23, so that the expansion block 24 is in rolling friction contact with the periphery of the lifting rod 23, the support of the expansion block 24 can be ensured, and the friction resistance can be reduced.

As shown in fig. 5 and 7, the U-shaped member positioning assembly 4 includes a second cylinder 41, a steering gear 42, a bracket 43 and a cushion block 44, where the second cylinder 41 is connected with the chassis 1, the output end of the second cylinder 41 is connected with the bracket 43 through the steering gear 42 to drive the bracket 43 to rotate, the cushion block 44 is mounted at the front end of the bracket 43, and the cushion block 44 is embedded in the U-shaped member 402. Specifically, in this embodiment, when the output end of the second cylinder 41 stretches and contracts, the steering gear 42 converts the linear motion into the rotational motion, so that the bracket 43 is turned over, and when the bracket 43 rotates and keeps horizontal, the cushion block 44 mounted at the front end of the bracket 43 can be embedded in the U-shaped piece 402, and primary positioning is performed on the U-shaped piece 402.

As shown in fig. 5 and 7, the bracket 43 is provided with a third cylinder 431, and the output end of the third cylinder 431 is connected with a cushion block 44 through a connecting rod, so as to drive the cushion block 44 to approach or separate from the U-shaped piece 402. Specifically, the third air cylinder 431 drives the cushion block 44 to finely adjust back and forth through the connecting rod, so that the cushion block 44 is close to or far away from the U-shaped piece 402, and collision between the cushion block 44 and the top of the U-shaped piece 402 is avoided in the process of following the swinging of the bracket 43.

As shown in fig. 5 and 7, the pad 44 is provided with a sensor 441, a spring head 442 is disposed on a side portion of the pad 44, and a sensor rod 443 penetrates the pad 44 to be connected with the spring head 442. Specifically, when the cushion block 44 is moved towards the bottom of the U-shaped member 402, the spring head 442 is pressed by the side wall of the U-shaped member 402, and is retracted into the cushion block 44 to drive the sensing rod 443 to move transversely, when the sensing rod 443 is moved to the sensing route opposite to the sensor 441, the sensor 441 sends a signal to the background controller, the background controller further controls the third cylinder 431 to stop acting, the cushion block 44 stops moving, the position of the cushion block 44 is precisely controlled by the cooperation of the spring head 442 and the sensing rod 443 with the sensor 441, the cushion block 44 is prevented from being pressed, and the inner bottom of the U-shaped member 402 is hard-topped.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a all-in-one is examined with welding to bumper shock absorber, includes the casing, welding robot and rotatory station set up in the casing, welding robot and rotatory station one-to-one set up, its characterized in that: the device also comprises a chassis, an expanding assembly, a spring disc positioning and clamping assembly and a U-shaped piece positioning assembly, wherein the chassis is arranged on a rotary station, the middle of the chassis is hollowed out, the expanding assembly is vertically arranged at the hollowed-out part of the chassis, a workpiece is sleeved on the expanding assembly, the spring disc is assembled in the middle of the workpiece, the U-shaped piece is assembled at the top of the workpiece, the spring disc positioning and clamping assembly is used for clamping the spring disc, the U-shaped piece positioning assembly is used for positioning the U-shaped piece, the spring disc is obliquely arranged, the spring disc positioning and clamping assembly and the U-shaped piece positioning assembly are matched to enable the middle branching of the spring disc and the middle branching of the U-shaped piece to be positioned on the same vertical surface, the spring disc positioning and clamping assembly comprises a positioning pin, the positioning pins and the distance sensors are vertically arranged on the chassis, the positioning pins penetrate through positioning holes on the spring disc, the sensing heads of the distance sensors are positioned right below the spring disc, the clamps are arranged at the edge of the chassis and used for clamping the edge of the spring disc, the U-shaped piece positioning component comprises a second air cylinder, a steering gear, a bracket and a cushion block, the second air cylinder is connected with the chassis, the output end of the second air cylinder is connected with the bracket through the steering gear to drive the bracket to rotate, the cushion block is arranged at the front end of the bracket, the cushion block is embedded in the U-shaped piece and distributed below the spring disc in a ring shape by adopting three distance sensors, the distance sensor is used for detecting the height of the lower disc surface of the spring disc and feeding detection information back to the background controller, if the distance between the disc surface of the spring disc and the distance sensor is detected to be within a preset range, the background controller controls the clamp to act to clamp the spring disc, if the distance is detected to be within the preset range, the spring disc is controlled to be qualified in primary assembly, otherwise, the spring disc is not qualified in assembly, dislocation exists, and workpiece blanking is needed to be reassembled.

2. A welding and inspection integrated machine for a shock absorber is characterized in that the clamp comprises a support, a first cylinder and a turnover clamp, wherein the support is arranged on the side part of a chassis, the first cylinder is arranged on the support, the output end of the first cylinder faces upwards and is connected with the turnover clamp, and the turnover clamp clamps the edge part of a spring disc.

3. A welding inspection integrated machine for a shock absorber according to claim 2, wherein the turnover clamp is provided with a welding scrap stopping plate.

4. The welding and inspection integrated machine for the shock absorber is characterized in that the expansion assembly comprises a driving piece, a sleeve, a lifting rod and a plurality of expansion blocks, wherein the driving piece is arranged in a chassis, the sleeve is arranged on the chassis, the lifting rod is movably inserted in the sleeve, the output end of the driving piece is connected with the lifting rod to drive the lifting rod to lift in the sleeve, an avoidance groove is formed in the side wall of the upper end of the sleeve, the expansion blocks are movably arranged in the avoidance groove in a one-to-one correspondence manner, a ring spring is sleeved outside the expansion blocks, the upper end of the lifting rod is in a sharp cone shape, and the upper end of the lifting rod is movably abutted against the inner side of the expansion blocks.

5. The welding and inspection integrated machine for shock absorbers according to claim 4, wherein an air inlet hole is formed in the lower portion of the sleeve, an air outlet hole is formed in the top of the sleeve, and the air inlet hole is communicated with the air outlet hole.

6. A welding inspection integrated machine for a shock absorber as set forth in claim 5 wherein said sleeve is rotatable.

7. The welding and inspection integrated machine for the shock absorber of claim 1, wherein a third cylinder is arranged on the bracket, and the output end of the third cylinder is connected with the cushion block through a connecting rod to drive the cushion block to be close to or far away from the U-shaped piece.

8. The welding and inspection integrated machine for shock absorbers according to claim 1, wherein the sensor is arranged on the cushion block, a spring head is arranged on the side part of the cushion block, and the sensor rod penetrates through the cushion block and is connected with the spring head.