CN220921328U

CN220921328U - Skeleton welding fixture of automobile seat

Info

Publication number: CN220921328U
Application number: CN202322501957.1U
Authority: CN
Inventors: 唐鑫山; 李冠华; 李阳阳; 孙海洋
Original assignee: Beijing Bai Lear Automotive Systems Co ltd
Current assignee: Beijing Bai Lear Automotive Systems Co ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-05-10
Anticipated expiration: 2033-09-14

Abstract

The utility model discloses a framework welding tool of an automobile seat, which comprises a base and a welding robot arranged on the base, wherein a clamp mechanism for clamping a framework is arranged on the base, and comprises a first clamping assembly and a second clamping assembly which are arranged at intervals; the two ends of the first cross rod are respectively a first detection position and a second detection position, and the two ends of the second cross rod are respectively a third detection position corresponding to the first detection position and a fourth detection position corresponding to the second detection position; the machine base is provided with a first camera for acquiring images of the first detection position and the third detection position and a second camera for acquiring images of the second detection position and the fourth detection position; the PLC system receives image signals sent by the first camera and the second camera and controls clamping actions of the first clamping assembly and the second clamping assembly; and detecting the sleeving state of the bushing before skeleton welding, and improving the yield of skeleton welding.

Description

Skeleton welding fixture of automobile seat

Technical Field

The utility model relates to the technical field of automobile seat framework welding, in particular to a framework welding tool for an automobile seat.

Background

The skeleton is the main constitution structure of car seat, and the skeleton needs to overlap altogether in both sides and establish 12 bushes before carrying out welding process to need carry out welding process to the skeleton under the condition that satisfies the bush and assemble, if there is the bush to lack and weld and then can cause the skeleton to produce abnormal sound in subsequent equipment, the skeleton after the welding only is scrapped.

Specifically after preliminary location is carried out to the skeleton through positioning fixture, the in-process that the skeleton corresponds the position is established with the bush cover to the manual work is missed easily, from this, lacks the inspection to the bush cover in current welding process and establishes the state, and controls follow-up welding action to improve skeleton welded yields.

Disclosure of utility model

First technical problem

The utility model aims to provide a framework welding tool for an automobile seat, which solves the problems that in the prior art, the sleeving state of a bushing is not detected before framework welding, and the yield is reduced due to the fact that the bushing is lost during framework welding.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The framework welding tool for the automobile seat comprises a machine base and a welding robot arranged on the machine base, wherein a clamp mechanism for clamping a framework is arranged on the machine base, the clamp mechanism comprises a first clamping assembly and a second clamping assembly which are arranged at intervals, the first clamping assembly is used for clamping a first cross rod of the framework, and the second clamping assembly is used for clamping a second cross rod of the framework; the two ends of the first cross rod are respectively a first detection position and a second detection position, and the two ends of the second cross rod are respectively a third detection position corresponding to the first detection position and a fourth detection position corresponding to the second detection position; the machine base is provided with a first camera used for acquiring images of the first detection position and the third detection position and a second camera used for acquiring images of the second detection position and the fourth detection position; the device also comprises a PLC control system, wherein the PLC system receives image signals sent by the first camera and the second camera and controls clamping actions of the first clamping assembly and the second clamping assembly.

Preferably, the first clamping assembly comprises a first positioning frame and a second positioning frame which are arranged on the base at intervals, detachable positioning parts are arranged on the first positioning frame and the second positioning frame, and the positioning parts are used for positioning the first cross rod; and the base is provided with a pressing mechanism for pressing the first cross rod.

Preferably, the second clamping assembly comprises a third positioning frame and a fourth positioning frame which are arranged on the base at intervals, detachable positioning parts are arranged on the third positioning frame and the fourth positioning frame, and the positioning parts are used for positioning the second cross rod; and the base is provided with a pressing mechanism for pressing the second cross rod.

Preferably, the positioning part comprises a first positioning block which is transversely arranged, one side of the positioning block is provided with a second positioning block, the other side of the positioning block is provided with a third positioning block, and the first positioning block, the second positioning block and the third positioning block are enclosed to form a positioning clamping space; the first positioning block, the second positioning block and the third positioning block are respectively provided with adjusting screws at intervals, and the adjusting screws are further sleeved with adjusting cushion blocks.

Preferably, the first detection bit, the second detection bit, the third detection bit, and the fourth detection bit each have two coordinate bits arranged at a vertical interval.

Preferably, the pressing mechanism comprises a supporting seat fixed on the machine base and a guide seat arranged on the supporting seat, and a rotating seat positioned on one side of the guide seat is also arranged on the supporting seat; the rotary seat is rotatably provided with a swinging rod piece and a pressing rod rotatably arranged on the swinging rod piece, one end, far away from the positioning part, of the pressing rod is rotatably provided with a guide part slidably arranged on the guide seat, and the machine seat is also provided with a power mechanism for pushing or pulling the guide part to move.

Preferably, a positioning notch is formed in the pressure bar, and a pressing block is detachably arranged on the positioning notch.

Preferably, the guide seat is provided with a guide cavity opening towards one side of the swing rod, the bottom structure of the guide part is a circular plate, and the inner diameter of the guide cavity is larger than the outer diameter of the circular plate.

Preferably, the power mechanism is a pneumatic telescopic cylinder or a hydraulic telescopic cylinder.

(III) beneficial effects

Photographing the first detection position and the third detection position through a first camera, analyzing the obtained picture information through the existing embedded software preset by the PLC system after photographing the second detection position and the fourth detection position, and under the condition that the bushings at the corresponding positions are sleeved, clamping the first transverse rod by a first clamping assembly and clamping the second transverse rod by a second clamping assembly, so that clamping and positioning of the whole framework are realized, the welding points in the framework are further welded by a subsequent welding robot, the condition that the bushings are not sleeved can be avoided, and the yield of framework welding is improved;

Through checking the sleeve sleeving condition before the welding process, and clamping the framework as a precondition for starting the subsequent welding process, the sleeve sleeving before the framework welding can be ensured to be completely sleeved.

Drawings

FIG. 1 is a schematic view of a partial structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a first clamping assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a second clamping assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a positioning portion according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a pressing mechanism according to an embodiment of the present utility model;

In fig. 1 to 5, the correspondence between the component names or lines and the drawing numbers is:

The machine base 1, the first clamping assembly 2, the second clamping assembly 3, the first detection position 4, the second detection position 5, the third detection position 6, the fourth detection position 7, the first camera 8, the second camera 9, the first positioning frame 10, the second positioning frame 11, the third positioning frame 12, the fourth positioning frame 13, the positioning part 14, the first positioning block 141, the second positioning block 142, the third positioning block 143, the positioning clamping space 144, the adjusting screw 145, the adjusting cushion block 146, the pressing mechanism 15, the supporting seat 151, the guide seat 152, the guide cavity 1520, the rotating seat 153, the swinging rod 154, the pressing rod 155, the positioning notch 1551, the pressing block 1552 and the guide part 156.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, an embodiment of the utility model provides a skeleton welding tool for an automobile seat, which comprises a machine base 1 and a welding robot installed on the machine base 1, wherein the machine base 1 and the welding robot adopt a structure in the existing tool, the welding position of the skeleton is not changed, the bushing sleeving position is checked before welding, whether the skeleton is positioned and clamped or not is judged, and the subsequent welding is performed, so that the bushing is sleeved in place before welding; install the fixture that is used for pressing from both sides tight skeleton on the frame 1, fixture includes first clamping component 2 and the second clamping component 3 that the interval set up, first clamping component 2 is used for the first horizontal pole of centre gripping skeleton, second clamping component 3 is used for the second horizontal pole of centre gripping skeleton, realizes carrying out the centre gripping location to whole skeleton through first clamping component 2 and second clamping component 3, but specifically when carrying out centre gripping action control to first clamping component 2, second clamping component 3, need carry out judgement to the position of cover and establish the bush earlier.

Thus, the first cross bar is provided with a first detection position 4 and a second detection position 5 at two ends, the second cross bar is provided with a third detection position 6 corresponding to the first detection position 4 and a fourth detection position 7 corresponding to the second detection position 5, the relative sleeving situation of 12 bushings is acquired and judged, a first camera 8 for acquiring images of the first detection position 4 and the third detection position 6 and a second camera 9 for acquiring images of the second detection position 5 and the fourth detection position 7 are mounted on the base 1, and a PLC control system is also included, and the PLC control system receives image signals sent by the first camera 8 and the second camera 9 and controls clamping actions of the first clamping assembly 2 and the second clamping assembly 3; firstly, the first camera 8 and the second camera 9 are industrial cameras, after pictures are taken on two sides respectively, image signals are transmitted to a PLC system, and whether the state of sleeving a bushing at a corresponding position on an image is judged through internal embedded software; the position of the assembly bushing is judged through the PLC system, and after the condition is met, the first clamping assembly 2 and the second clamping assembly are controlled to act to clamp and fix the framework.

Specifically, the first detection bit 4, the second detection bit 5, the third detection bit 6 and the fourth detection bit 7 each have two coordinate positions vertically spaced, and 12 bushings are sleeved on at least 8 points, so that two sides are respectively photographed when photographing, and the mounting angles of the first camera 8 and the second camera 9 cover all detection bits on the corresponding sides.

Wherein, first centre gripping subassembly 2 is including the interval installation first locating rack 10 and the second locating rack 11 on the frame 1, first locating rack 10 with all install detachable location portion 14 on the second locating rack 11, location portion 14 is used for fixing a position first horizontal pole, realizes fixing a position first horizontal pole through location portion 14, is convenient for initially to the skeleton location this moment, is convenient for follow-up image shooting, and install the hold-down mechanism 15 that is used for compressing tightly first horizontal pole on the frame 1, hold-down mechanism 15 all does not compress tightly first horizontal pole before receiving the control command of PLC system.

Similarly, the second clamping assembly 3 comprises a third positioning frame 12 and a fourth positioning frame 13 which are installed on the base 1 at intervals, detachable positioning parts 14 are installed on the third positioning frame 12 and the fourth positioning frame 13, the positioning parts 14 are used for positioning the second cross rod, and a pressing mechanism 15 used for pressing the second cross rod is installed on the base 1; the pressing mechanisms 15 corresponding to the first clamping assembly 2 and the second clamping assembly 3 have the same structure, but respectively press the first cross rod and the second cross rod, and all act after receiving the instruction sent by the PLC system.

The positioning part 14 is adapted to positioning of a rod-shaped structure, a good positioning effect can be achieved before compaction, the positioning part 14 belongs to a vulnerable part, the whole part and the parts can be replaced and maintained, specifically, the positioning part 14 comprises a first positioning block 141 which is transversely arranged, one side of the positioning block is provided with a second positioning block 142, the other side of the positioning block is provided with a third positioning block 143, and the first positioning block 141, the second positioning block 142 and the third positioning block 143 are enclosed to form a positioning clamping space 144 which is used for adapting to the rod-shaped structure; and all the intervals on the first locating block 141, the second locating block 142 and the third locating block 143 are provided with adjusting screws 145, the adjusting screws 145 are further sleeved with adjusting cushion blocks 146, the corresponding first locating block 141, second locating block 142 and third locating block 143 are locked by the adjusting screws 145, adjustment can be realized, and meanwhile, the adjusted stop can be realized by the adjusting cushion blocks 146, so that the current positioning and clamping space 144 is ensured to adapt to a rod-shaped structure with a corresponding thickness.

The first positioning block 141, the second positioning block 142 and the third positioning block 143 are made of copper, and the first cross bar and the second cross bar are protected in a clamping state, so that machining flaws are avoided.

When the pressing is definitely required, the pressing mechanism 15 cooperates with the positioning part 14 to stably press the rod-shaped structure, the pressing mechanism 15 mainly presses the middle part of the rod-shaped structure, wherein the pressing mechanism 15 comprises a supporting seat 151 fixed on the base 1 and a guide seat 152 arranged on the supporting seat 151, a rotating seat 153 positioned on one side of the guide seat 152 is further arranged on the supporting seat 151, a swinging rod 154 and a pressing rod 155 rotatably arranged on the swinging rod 154 are rotatably arranged on the rotating seat 153, therefore, the pressing rod 155 can swing and rotate relatively, the pressing rod has a pressing state and a non-pressing state, one end of the pressing rod 155 away from the positioning part 14 is rotatably provided with a guide part 156 slidably arranged on the guide seat 152, a power mechanism for pushing or pulling the guide part 156 is further arranged on the base 1, the pressing rod 155 is pressed on the rod-shaped structure after the guide part 156 is pushed by the power mechanism, and the pressing rod-shaped structure is in the non-pressing state when the guide part 156 is pulled.

The compression bar 155 is provided with a positioning notch 1551, a pressing block 1552 is detachably arranged on the positioning notch 1551, and the pressing block 1552 is made of copper and can play a role in protecting when a bar-shaped structure is compressed.

Meanwhile, a guiding cavity 1520 opening towards one side of the swing rod member 154 is formed on the guiding seat 152, the bottom structure of the guiding portion 156 is a circular plate, the inner diameter of the guiding cavity 1520 is larger than the outer diameter of the circular plate, and the circular plate has a certain lateral movement range in the vertical movement process through the guiding cavity 1520, but the overall movement is limited by the limit of the guiding cavity 1520, and no large deflection occurs.

Wherein, power unit can adopt pneumatic telescopic cylinder or hydraulic telescopic cylinder in the current product.

After verification and determination are carried out on the bushing sleeve on the framework, the framework is reliably compressed, welding of corresponding parts is achieved through follow-up welding robot actions, therefore, the situation that the bushing is missing after welding can be avoided, and the yield is improved.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a skeleton welding frock of car seat, includes the frame and installs welding robot on the frame, its characterized in that: the machine seat is provided with a clamp mechanism for clamping the framework, the clamp mechanism comprises a first clamping assembly and a second clamping assembly which are arranged at intervals, the first clamping assembly is used for clamping a first cross rod of the framework, and the second clamping assembly is used for clamping a second cross rod of the framework;

The two ends of the first cross rod are respectively a first detection position and a second detection position, and the two ends of the second cross rod are respectively a third detection position corresponding to the first detection position and a fourth detection position corresponding to the second detection position;

The machine base is provided with a first camera used for acquiring images of the first detection position and the third detection position and a second camera used for acquiring images of the second detection position and the fourth detection position;

The device also comprises a PLC control system, wherein the PLC control system receives image signals sent by the first camera and the second camera and controls clamping actions of the first clamping assembly and the second clamping assembly.

2. The automobile seat framework welding tool according to claim 1, wherein: the first clamping assembly comprises a first positioning frame and a second positioning frame which are arranged on the base at intervals, detachable positioning parts are arranged on the first positioning frame and the second positioning frame, and the positioning parts are used for positioning the first cross rod;

and the base is provided with a pressing mechanism for pressing the first cross rod.

3. The skeleton welding fixture of an automobile seat according to claim 2, wherein: the second clamping assembly comprises a third positioning frame and a fourth positioning frame which are arranged on the base at intervals, detachable positioning parts are arranged on the third positioning frame and the fourth positioning frame, and the positioning parts are used for positioning the second cross rod;

And the base is provided with a pressing mechanism for pressing the second cross rod.

4. A skeleton welding fixture for a car seat according to claim 3, wherein: the positioning part comprises a first positioning block which is transversely arranged, a second positioning block is arranged on one side of the positioning block, a third positioning block is arranged on the other side of the positioning block, and the first positioning block, the second positioning block and the third positioning block are enclosed to form a positioning clamping space;

the first positioning block, the second positioning block and the third positioning block are respectively provided with adjusting screws at intervals, and the adjusting screws are further sleeved with adjusting cushion blocks.

5. The automobile seat framework welding tool according to claim 4, wherein: the first detection bit, the second detection bit, the third detection bit and the fourth detection bit are provided with two coordinate bits which are vertically arranged at intervals.

6. The automotive seat's skeleton welding frock according to any one of claims 3-5, characterized in that: the compressing mechanism comprises a supporting seat fixed on the machine base and a guide seat arranged on the supporting seat, and a rotating seat positioned on one side of the guide seat is also arranged on the supporting seat;

The rotary seat is rotatably provided with a swinging rod piece and a pressing rod rotatably arranged on the swinging rod piece, one end, far away from the positioning part, of the pressing rod is rotatably provided with a guide part slidably arranged on the guide seat, and the machine seat is also provided with a power mechanism for pushing or pulling the guide part to move.

7. The automobile seat framework welding tool as claimed in claim 6, wherein: the compression bar is provided with a positioning notch, and the positioning notch is detachably provided with a pressing block.

8. The automobile seat framework welding tool as claimed in claim 7, wherein: the guide seat is provided with a guide cavity which is open towards one side of the swing rod piece, the bottom structure of the guide part is a circular plate, and the inner diameter of the guide cavity is larger than the outer diameter of the circular plate.

9. The automobile seat framework welding tool as claimed in claim 8, wherein: the power mechanism is a pneumatic telescopic cylinder or a hydraulic telescopic cylinder.