CN219131278U

CN219131278U - Double-pressure-point butt-clamping mechanism for automobile welding

Info

Publication number: CN219131278U
Application number: CN202223407711.XU
Authority: CN
Inventors: 王郡
Original assignee: Suzhou Noke Automotive Engineering Machinery Co ltd
Current assignee: Suzhou Nok Intelligent Equipment Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-06
Anticipated expiration: 2032-12-16

Abstract

The utility model provides a double-pressure-point butt-clamping mechanism for automobile welding, which comprises an air cylinder, a mounting plate, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are symmetrically hinged on the mounting plate; one end of the second connecting rod is hinged with a push rod of the air cylinder, the other end of the second connecting rod is hinged with a second clamping jaw, and a plurality of workpieces can be clamped and centered between the first clamping jaw and the second clamping jaw at the same time. This mechanism adopts the cylinder to provide the power supply, and when the cylinder was ventilated, cylinder both ends halved cylinder working stroke, promote first connecting rod and second connecting rod simultaneously, because the middle part of first connecting rod and second connecting rod articulates on the mounting panel to thereby make first clamping jaw and second clamping jaw be close to each other and press from both sides tight work piece, this mechanism is small and exquisite, uses in a flexible way, compares the condition that uses the cylinder in the work piece both sides, the usage space of reduction.

Description

Double-pressure-point butt-clamping mechanism for automobile welding

Technical Field

The utility model relates to the field of automobile welding, in particular to a double-pressure-point butt-clamping mechanism for automobile welding.

Background

In the automobile welding, in order to process the automobile body, the automobile body needs to be fixed in advance to ensure the accuracy of subsequent processing, a certain pin is often required to be installed on the automobile body and a processing table, and the pin and the hole are in transition fit, so that great workload is also required for disassembling the pin.

In the fixture design, when a plurality of small pieces are required to be centered and clamped and the pin is pulled out, clamping jaw cylinders are often arranged on two sides of a workpiece respectively, the welding of welding seams can be blocked by the clamping jaw cylinders in front, the occupied space is large, the precision is low, and the fixture is not suitable because the space in the automobile processing is limited, so that a butt clamp mechanism with a small structure, convenient use and no occupied space is required to be developed.

Disclosure of Invention

The utility model aims to solve the technical problems that the existing small workpiece clamp is large in occupied space, low in precision and capable of affecting welding of a welding line.

The technical scheme adopted for solving the technical problems is as follows: the double-pressure-point butt-clamping mechanism for automobile welding comprises an air cylinder, a mounting plate, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are symmetrically hinged to the mounting plate; one end of the second connecting rod is hinged with a push rod of the air cylinder, and the other end of the second connecting rod is hinged with a second clamping jaw; the first clamping jaw and the second clamping jaw can simultaneously clamp and center a plurality of workpieces.

Further: the first clamping jaw is provided with a first pressing block, and the second clamping jaw is provided with a second pressing block.

Further: the first pressing block is provided with a first pin shaft for inserting the first workpiece, and the second pressing block is provided with a second pin shaft for inserting the second workpiece.

Further: the mounting plate is provided with a mounting hole, and a third workpiece positioned between the first workpiece and the second workpiece is connected in the mounting hole through a bolt.

Further: the first connecting rod and the second connecting rod are provided with pre-positioning concave blocks, and the mounting plate is provided with pre-positioning convex blocks corresponding to the pre-positioning concave blocks.

The utility model has the beneficial effects that the cylinder is adopted to provide a power source, the cylinder is connected with the body of the cylinder through the first connecting rod, the second connecting rod is connected with the push rod of the cylinder, when the cylinder is ventilated, the body of the cylinder and the two ends of the push rod of the cylinder divide the working stroke of the cylinder equally, the workpiece is clamped through the first clamping jaw hinged on the first connecting rod and the second clamping jaw hinged on the second connecting rod, the stress area of the workpiece is increased when the workpiece is clamped through the first pressing block and the second pressing block, the clamping precision is improved through the first pin shaft and the second pin shaft which are inserted into the workpiece, the using space of a mechanism which is reduced in a rear mode of the cylinder is not influenced, the subsequent pin pulling, welding and other operations for clamping the workpiece are not influenced, and the utility model can be applied by matching with the guide rail, and realize the running water type operation of pin pulling work in the automobile welding.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is another schematic structural view of the present utility model;

FIG. 3 is a schematic structural view of the first press block and the second press block;

fig. 4 is a schematic structural view of the first, second, and third workpieces.

In the figure, 1, a cylinder, 2, a mounting plate, 3, a first connecting rod, 4, a second connecting rod, 5, a body, 6, a first clamping jaw, 7, a push rod, 8, a second clamping jaw, 9, a first pressing block, 10, a second pressing block, 11, a first workpiece, 12, a first pin roll, 13, a second workpiece, 14, a second pin roll, 15, a mounting hole, 16, a bolt, 17, a third workpiece, 18, a pre-positioning concave block, 19 and a pre-positioning convex block.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present utility model in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present utility model.

As shown in fig. 1 to 4, the utility model provides a double-pressure-point butt clamp mechanism for automobile welding, which comprises a cylinder 1, a mounting plate 2, a first connecting rod 3 and a second connecting rod 4, wherein the first connecting rod 3 and the second connecting rod 4 are symmetrically hinged on the mounting plate 2, one end of the first connecting rod 3 is hinged with a body 5 of the cylinder 1, and the other end of the first connecting rod 3 is hinged with a first clamping jaw 6; one end of the second connecting rod 4 is hinged with a push rod 7 of the air cylinder 1, and the other end of the second connecting rod 4 is hinged with a second clamping jaw 8; the first clamping jaw 6 and the second clamping jaw 8 can simultaneously clamp a plurality of workpieces in the middle.

This mechanism adopts cylinder 1 to provide the power supply, and when cylinder 1 was ventilated, cylinder 1 both ends halved cylinder 1 working stroke, promotes first connecting rod 3 and second connecting rod 4 simultaneously, because the middle part of first connecting rod 3 and second connecting rod 4 articulates on mounting panel 2 to thereby make first clamping jaw 6 and second clamping jaw 8 be close to each other and press from both sides tight work piece, this mechanism is small and exquisite, uses in a flexible way, compares the condition that uses cylinder 1 in the work piece both sides, the usage space of reduction.

A first pressing block 9 is arranged on the first clamping jaw 6, and a second pressing block 10 is arranged on the second clamping jaw 8; the first pressing block 9 is provided with a first pin shaft 12 for inserting the first workpiece 11, and the second pressing block 10 is provided with a second pin shaft 14 for inserting the second workpiece 13.

The use of first briquetting 9 and first briquetting 9 can improve the area of stress when holding the work piece, when compressing tightly the work piece, the work piece is difficult for warping, the first round pin axle 12 of first briquetting 9 is used for inserting first work piece 11, the second round pin axle 14 on the second briquetting 10 is used for inserting second work piece 13, can place a plurality of work pieces simultaneously on first round pin axle 12 and the second round pin axle 14 simultaneously, can improve the precision that the work piece was fixed a position, and make the locating hole on the work piece can align each other through the manual work rotation work piece, thereby be convenient for insert the locating pin in the locating hole, fix a plurality of work pieces together, or take out the locating pin from the locating hole.

The mounting plate 2 is provided with a mounting hole 15, and a third workpiece 17 positioned between the first workpiece 11 and the second workpiece 13 is connected in the mounting hole 15 through a bolt 16. The mechanism can insert a plurality of workpieces on the first pin shaft 12 and the second pin shaft 14 according to the requirement, and the positioning holes of a plurality of workpieces are required to be aligned with each other so as to facilitate the insertion of the positioning pins, thereby realizing accurate positioning so as to facilitate the subsequent processing of the workpieces.

The first connecting rod 3 and the second connecting rod 4 are provided with pre-positioning concave blocks 18, and the mounting plate 2 is provided with pre-positioning convex blocks 19 corresponding to the pre-positioning concave blocks 18. The pre-contact of the pre-positioning block concave block and the pre-positioning convex block 19 can prevent the excessive clamping force between the first clamping jaw 6 and the second clamping jaw 8 and has the function of buffering the workpiece clamped by the first clamping jaw 6 and the second clamping jaw 8.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The utility model provides a car welds dress and is used two pressure point butt clamp mechanism, includes cylinder (1), mounting panel (2), symmetry hinge first connecting rod (3) and second connecting rod (4) on mounting panel (2), its characterized in that: one end of the first connecting rod (3) is hinged with a body (5) of the air cylinder (1), and the other end of the first connecting rod (3) is hinged with a first clamping jaw (6);

one end of the second connecting rod (4) is hinged with a push rod (7) of the air cylinder (1), and the other end of the second connecting rod (4) is hinged with a second clamping jaw (8);

the first clamping jaw (6) and the second clamping jaw (8) can simultaneously clamp and center a plurality of workpieces.

2. The dual-pressure-point butt-clamping mechanism for automobile welding according to claim 1, wherein: the first clamping jaw (6) is provided with a first pressing block (9), and the second clamping jaw (8) is provided with a second pressing block (10).

3. The dual-pressure-point butt-clamping mechanism for automobile welding as claimed in claim 2, wherein: the first pressing block (9) is provided with a first pin shaft (12) for inserting a first workpiece (11), and the second pressing block (10) is provided with a second pin shaft (14) for inserting a second workpiece (13).

4. The dual-pressure-point butt-clamping mechanism for automobile welding according to claim 1, wherein: the mounting plate (2) is provided with a mounting hole (15), and a third workpiece (17) positioned between the first workpiece (11) and the second workpiece (13) is connected in the mounting hole (15) through a bolt (16).

5. The dual-pressure-point butt-clamping mechanism for automobile welding according to claim 1, wherein: the first connecting rod (3) and the second connecting rod (4) are provided with a preset positioning concave block (18), and the mounting plate (2) is provided with a preset positioning convex block (19) corresponding to the preset positioning concave block (18).