CN222511469U

CN222511469U - Automatic welding fixture

Info

Publication number: CN222511469U
Application number: CN202421082128.2U
Authority: CN
Inventors: 李小宁
Original assignee: Guangxi Meike Office Furniture Co ltd
Current assignee: Guangxi Meike Office Furniture Co ltd
Priority date: 2024-05-17
Filing date: 2024-05-17
Publication date: 2025-02-21
Anticipated expiration: 2034-05-17

Abstract

The utility model relates to the technical field of clamps, in particular to an automatic welding clamp, which comprises a clamp main body, wherein a welding positioning table with a circular structure is arranged on the clamp main body, a square through hole is formed in the middle of the welding positioning table, a first movable supporting plate and a second movable supporting plate are symmetrically arranged in the square through hole of the welding positioning table, clamps are uniformly arranged above the welding positioning table at intervals, the outer ends of the clamps are respectively connected with a clamp push rod, a first linear transmission mechanism is arranged at the lower end of the clamp main body, the upper end of the first linear transmission mechanism is connected with a second linear transmission mechanism through a screw structure, and a horizontal adjusting positioning seat is arranged at the upper end of the second linear transmission mechanism through the screw structure. The automatic welding fixture can respectively weld and position the plate-shaped workpiece and the tubular workpiece by adjusting the positioning structure, and simultaneously can enable the workpiece to move and rotate on a plane, so that the automatic welding precision is improved.

Description

Automatic welding fixture

Technical Field

The utility model relates to the technical field of clamps, in particular to an automatic welding clamp.

Background

The automatic welding is a technology for welding operation by utilizing automatic equipment, which remarkably improves the welding efficiency, consistency and accuracy, and is widely applied to manufacturing industries, in particular to industries of automobile manufacturing, ship building, aerospace, building and the like. In the automatic welding process, workpieces are fixed, supported or positioned through the fixture, so that accuracy and repeatability in the welding process are ensured, and welding quality and production efficiency are improved.

The existing welding fixture device disclosed by publication No. CN110434532A realizes workpiece positioning treatment by adjusting the position of a fastening pressing plate, but is applied to automatic welding, and the fixture has the problems of small moving range, fixed clamping mode and incapability of flexibly adjusting the clamping mode.

Disclosure of utility model

The utility model aims to provide an automatic welding fixture to solve the problems that in the automatic welding in the current market, which is proposed by the background technology, the fixture has a small moving range, a fixed clamping mode and can not flexibly adjust the clamping mode.

The automatic welding fixture comprises a fixture main body, a welding positioning table with a circular structure is arranged on the fixture main body, a square through hole is formed in the middle of the welding positioning table, a first movable supporting plate and a second movable supporting plate are symmetrically arranged in the square through hole of the welding positioning table, fixtures are uniformly arranged above the welding positioning table at intervals, the outer ends of the fixtures are connected with fixture push rods, a first linear transmission mechanism is arranged at the lower end of the fixture main body, the upper end of the first linear transmission mechanism is connected with a second linear transmission mechanism through a screw structure, the upper end of the second linear transmission mechanism is provided with a horizontal adjusting positioning seat through the screw structure, the upper end of the horizontal adjusting positioning seat is fixedly clamped with a rotary positioning seat, supporting vertical plates are symmetrically arranged between the rotary positioning seat and the welding positioning table, an outer ring of the rotary positioning seat is provided with an outer tooth groove, and the rotary positioning seat is in meshed connection with a transmission gear through an outer tooth groove.

Preferably, the welding positioning table and the lower parts of the first movable supporting plate and the second movable supporting plate are respectively fixed with a hinge seat, and the first movable supporting plate and the second movable supporting plate are clamped in the square through holes of the welding positioning table by the lower parts of the welding positioning table.

Preferably, the upper end plane of the first movable supporting plate and the upper end plane of the second movable supporting plate are flush with the upper end plane of the welding positioning table, and the lock seat and the locking rod are respectively fixed at the opposite ends below the first movable supporting plate and the second movable supporting plate by screws, and are in plug-in fit with each other.

Preferably, the other end of the clamp push rod is fixed with a fixing seat through a screw, and the lower end of the fixing seat is fixed with a welding positioning table through welding.

Preferably, the cross section of the rotary positioning seat and the horizontal adjusting positioning seat are of a shape like a Chinese character 'ji', through holes corresponding to the square through holes on the welding positioning table are formed in the middle parts of the rotary positioning seat and the horizontal adjusting positioning seat, balls are installed at the bottom of the rotary positioning seat in a uniformly spaced clamping manner, and the balls are in rolling contact with the horizontal adjusting positioning seat.

Preferably, a driving motor is arranged above the transmission gear, the middle part of the transmission gear is connected with a driving motor coupler through a welded rod-shaped structure, the driving motor and the transmission gear are externally covered with a mounting cover, and the lower end of the mounting cover is fixed with a horizontal adjusting positioning seat through bolts.

Compared with the prior art, the automatic welding fixture has the beneficial effects that the positioning structure is adjusted, so that the plate-shaped workpiece and the tubular workpiece can be respectively welded and positioned, the workpiece can be moved and rotated on a plane, and the automatic welding precision is improved. The automatic welding fixture is provided with the square hole on the welding positioning table, and the turnover movable supporting plate is arranged in the square hole, so that the welding positioning table has a planar supporting and penetrating limiting positioning mode, and the fixture can conveniently carry out welding clamping positioning treatment on a workpiece.

Drawings

FIG. 1 is a schematic view of an automated welding fixture according to the present utility model;

FIG. 2 is a top view of the automated welding fixture of the present utility model;

FIG. 3 is a schematic view of the bottom structure of the welding positioning table of the automatic welding fixture of the present utility model;

FIG. 4 is a schematic diagram of a structure in which a rotary positioning seat of an automatic welding fixture is meshed with a transmission gear through an outer tooth socket;

fig. 5 is a schematic diagram of the position structure of the horizontal adjusting positioning seat of the automatic welding fixture of the present utility model relative to the first linear transmission mechanism and the second linear transmission mechanism.

In the figure, a clamp main body, a welding positioning table, a clamp, a first movable supporting plate, a lock seat, a 6 locking rod, a 7 second movable supporting plate, a 8 hinge seat, a 9 clamp push rod, a 10 fixed seat, a 11 supporting vertical plate, a 12 external tooth groove, a 13 rotating positioning seat, a 14 mounting cover, a 15 driving motor, a 16 driving gear, a 17 ball, a 18 horizontal adjusting positioning seat, a 19 first linear transmission mechanism, a 20 second linear transmission mechanism.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides the following technical solutions: the automatic welding fixture comprises a fixture main body 1, a welding positioning table 2 with a circular structure is arranged on the fixture main body 1, a square through hole is formed in the middle of the welding positioning table 2, a first movable supporting plate 4 and a second movable supporting plate 7 are symmetrically arranged in the square through hole of the welding positioning table 2, the upper end planes of the first movable supporting plate 4 and the second movable supporting plate 7 are flush with the upper end plane of the welding positioning table 2, a lock seat 5 and a locking rod 6 are respectively screwed at the opposite ends below the first movable supporting plate 4 and the second movable supporting plate 7, the lock seat 5 and the locking rod 6 are in plug-in fit, the structure ensures that the upper ends of the welding positioning table 2 form a flat supporting surface after the first movable supporting plate 4 and the second movable supporting plate 7 are spliced so as to carry out supporting positioning treatment during plate-shaped workpiece welding, the lock seat 5 and the locking rod 6 play a role in locking and stabilizing the splicing of the first movable supporting plate 4 and the second movable supporting plate 7, the hinging seat 8 is fixed at the lower parts of the welding positioning table 2 and the first movable supporting plate 4 and the second movable supporting plate 7, the first movable supporting plate 4 and the second movable supporting plate 7 are clamped in the square through holes of the welding positioning table 2 from the lower part of the welding positioning table 2, when the welding positioning table 2 performs the tubular workpiece limiting treatment through the middle square through holes, the first movable supporting plate 4 and the second movable supporting plate 7 can be arranged at the lower part of the welding positioning table 2, the adjustment treatment of the positioning mode of the clamp main body 1 is facilitated, the clamps 3 are uniformly arranged above the welding positioning table 2 at intervals, the outer ends of the clamps 3 are connected with the clamp push rods 9, the other end of the clamp push rod 9 is fixed with a fixed seat 10 through a screw, the lower end of the fixed seat 10 is fixed with a welding positioning table 2 through welding, the structure ensures that the clamp push rod 9 can be fixed relative to the welding positioning table 2 through the fixed seat 10, thereby ensuring the welding stability of the clamp push rod 9 and the welding positioning table 2 through the cooperation of the clamp push rod 3 and the welding positioning table 2, the lower end of the clamp main body 1 is provided with a first linear transmission mechanism 19, the upper end of the first linear transmission mechanism 19 is connected with a second linear transmission mechanism 20 through a screw structure, the upper end of the second linear transmission mechanism 20 is provided with a horizontal adjusting positioning seat 18 through the screw structure, the first linear transmission mechanism 19 and the second linear transmission mechanism 20 are all existing linear movement mechanisms, the screw is driven to rotate through a stepping motor, the linear movement treatment of a movable structure on the screw is realized, the first linear transmission mechanism 19 and the second linear transmission mechanism 20 are vertically arranged relatively to realize the movement treatment on a plane, the upper end of the horizontal adjustment positioning seat 18 is fixedly clamped with the rotary positioning seat 13, the supporting vertical plates 11 are symmetrically arranged between the rotary positioning seat 13 and the welding positioning table 2, the cross sections of the rotary positioning seat 13 and the horizontal adjustment positioning seat 18 are of a Chinese character 'ji' type structure, through holes corresponding to the square through holes on the welding positioning table 2 are arranged in the middle parts of the rotary positioning seat 13 and the horizontal adjustment positioning seat 18, the bottom of the rotary positioning seat 13 is uniformly clamped with the balls 17 at intervals, the balls 17 are in rolling contact with the horizontal adjustment positioning seat 18, the structure enables the rotary positioning seat 13 to rotate under the positioning of the horizontal adjustment positioning seat 18, the balls 17 play a role of rotation resistance reduction, the Chinese character 'ji' type structure is arranged between the rotary positioning seat 13 and the horizontal adjustment positioning seat 18, make the joint relatively firm, rotary positioning seat 13 lets welding positioning table 2 carry out the position movement adjustment processing on the plane through first linear drive mechanism 19 and second linear drive mechanism 20 under the effect of horizontal adjustment positioning seat 18, the accurate control welding position, rotary positioning seat 13 outer lane is equipped with outer tooth groove 12, and rotary positioning seat 13 is connected with drive gear 16 through outer tooth groove 12 meshing, drive gear 16 top is equipped with driving motor 15, and the middle part of drive gear 16 passes through welding rod structure and driving motor 15 coupling joint, driving motor 15 and the outside cover of drive gear 16 are equipped with mounting cover 14, and the mounting cover 14 lower extreme is fixed with horizontal adjustment positioning seat 18 bolt, this structure makes driving gear 16 can drive outer tooth groove 12 activity under driving motor 15's drive, realize rotary positioning seat 13's rotation, thereby realize welding positioning table 2's rotation, the welding position of control work piece.

Working principle: when the automatic welding fixture is used, firstly, a proper automatic welding positioning mode is selected according to the type of a welding workpiece, when the welding positioning of a plate-shaped workpiece is carried out, the first movable supporting plate 4 and the second movable supporting plate 7 are clamped in square through holes in the middle of the welding positioning table 2, the locking of the first movable supporting plate 4 and the second movable supporting plate 7 is realized through the insertion connection of the locking rod 6 and the lock seat 5, the plate-shaped workpiece is placed on a plane formed by the first movable supporting plate 4 and the second movable supporting plate 7, when the welding positioning of a tubular structure is carried out, the locking rod 6 is pulled out from the lock seat 5, the first movable supporting plate 4 and the second movable supporting plate 7 rotate relative to the welding positioning table 2 through the hinging seat 8, the tubular workpiece can penetrate into the welding positioning table 2, then the clamp 3 is moved through the clamp push rod 9, the fixture 3 clamps a plate-shaped workpiece or a tubular workpiece to realize welding positioning, the fixing seat 10 enables the fixture push rod 9 to be stable relative to the welding positioning table 2, in the automatic welding process, the second linear transmission mechanism 20 is driven by the first linear transmission mechanism 19 to linearly move on a plane, the horizontal adjustment positioning seat 18 is also driven by the first linear transmission mechanism 19 to linearly move on the plane to adjust the plane position of the welding positioning table 2, the driving motor 15 drives the driving gear 16 to rotate, the driving gear 16 drives the rotation positioning seat 13 to rotate through meshing with the external tooth groove 12, the rotation positioning seat 13 is fixed by the supporting vertical plate 11 to enable the welding positioning table 2 to rotate, the welding position of the workpiece is adjusted, the rolling balls 17 enable the rotation of the rotation positioning seat 13 to be smoother, the mounting cover 14 is used for mounting positioning treatment of the driving motor 15 and the driving gear 16, the flexible use of the fixture body 1 is achieved, thereby completing a series of works.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The automatic welding fixture comprises a fixture main body (1) and is characterized in that a welding positioning table (2) with a circular structure is arranged on the fixture main body (1), a square through hole is formed in the middle of the welding positioning table (2), a first movable supporting plate (4) and a second movable supporting plate (7) are symmetrically arranged in the square through hole of the welding positioning table (2), clamps (3) are uniformly arranged above the welding positioning table (2) at intervals, clamp push rods (9) are connected to the outer side ends of the clamps (3), a first linear transmission mechanism (19) is arranged at the lower end of the fixture main body (1), a second linear transmission mechanism (20) is connected to the upper end of the first linear transmission mechanism (19) through a screw structure, a horizontal adjusting positioning seat (18) is arranged at the upper end of the second linear transmission mechanism (20) through the screw structure, a rotary positioning seat (13) is fixedly clamped at the upper end of the horizontal adjusting positioning seat (18), supporting vertical plates (11) are symmetrically arranged between the rotary positioning seat (13) and the welding positioning table (2), an outer ring (13) is provided with an outer tooth groove (12), and the rotary positioning seat (12) is connected with an outer gear groove (16) through a transmission seat (16).

2. The automatic welding fixture as claimed in claim 1, wherein the welding positioning table (2) and the lower parts of the first movable supporting plate (4) and the second movable supporting plate (7) are respectively fixed with a hinge seat (8), and the first movable supporting plate (4) and the second movable supporting plate (7) are clamped in square through holes of the welding positioning table (2) from the lower part of the welding positioning table (2).

3. The automatic welding fixture of claim 1, wherein the upper end planes of the first movable supporting plate (4) and the second movable supporting plate (7) are flush with the upper end plane of the welding positioning table (2), lock bases (5) and locking rods (6) are respectively screwed at opposite ends below the first movable supporting plate (4) and the second movable supporting plate (7), and the lock bases (5) and the locking rods (6) are in plug-in fit.

4. The automatic welding fixture as claimed in claim 1, wherein the other end of the fixture push rod (9) is fixed with a fixing seat (10) through a screw, and the lower end of the fixing seat (10) is fixed with the welding positioning table (2) through welding.

5. The automatic welding fixture of claim 1, wherein the cross sections of the rotary positioning seat (13) and the horizontal adjusting positioning seat (18) are of a shape like a Chinese character 'ji', through holes corresponding to the square through holes on the welding positioning table (2) are formed in the middle parts of the rotary positioning seat (13) and the horizontal adjusting positioning seat (18), balls (17) are uniformly clamped at intervals at the bottom of the rotary positioning seat (13), and the balls (17) are in rolling contact with the horizontal adjusting positioning seat (18).

6. The automatic welding fixture as claimed in claim 1, wherein a driving motor (15) is arranged above the transmission gear (16), the middle part of the transmission gear (16) is connected with a coupling of the driving motor (15) through a welded rod-shaped structure, the driving motor (15) and the transmission gear (16) are externally covered with a mounting cover (14), and the lower end of the mounting cover (14) is fixed with a horizontal adjusting positioning seat (18) through bolts.