CN212095018U

CN212095018U - Sliding mechanism bolt positioning device of automobile welding fixture

Info

Publication number: CN212095018U
Application number: CN202020243224.6U
Authority: CN
Inventors: 苏明; 张建武; 高菁菁; 李银波; 李钊文; 杨建�
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-12-08
Anticipated expiration: 2030-03-02

Abstract

A sliding mechanism bolt positioning device of an automobile welding fixture comprises a base, a plurality of sliding rails, a sliding table, a positioning mechanism and a bolt mechanism; the sliding table is fixed on the sliding block and moves on the sliding rail through the sliding block; the positioning mechanism is arranged on the base and comprises an installation plate and a plurality of installation seats arranged on the installation plate, each installation seat is provided with a ball bearing, and the ball bearings are arranged and combined in equal intervals of 360 degrees to form positioning holes; the bolt mechanism is fixed on the sliding table and comprises a bolt and a positioning guide sleeve, and the bolt moves along the positioning guide sleeve and is inserted into the positioning hole or moves out of the positioning hole. The utility model provides an automobile welding jig glide machanism bolt positioner's the wearing and tearing of reducible locating hole improve the side of sliding and push away positioning accuracy, improve white automobile body welding quality.

Description

Sliding mechanism bolt positioning device of automobile welding fixture

Technical Field

The utility model relates to an automobile welding equipment technical field especially relates to an automobile welding anchor clamps glide machanism bolt positioner.

Background

The trial-manufacture total splicing station of the white automobile body generally adopts a sliding side-pushing mode, and the side-pushing mode has higher requirement on positioning accuracy. Generally, the trial-manufacture general assembly side push positioning adopts bolt positioning, but the bolt structure of the current trial-manufacture factory adopts movable pins to be matched with fixed positioning holes, and the mode easily causes the abrasion of the positioning holes, thereby influencing the side push positioning precision and reducing the welding quality of the white automobile body.

SUMMERY OF THE UTILITY MODEL

The utility model provides a car welds clamping apparatus glide machanism bolt positioner, the wearing and tearing of reducible locating hole improve the side of sliding and push away positioning accuracy, improve white automobile body welding quality.

The utility model provides a sliding mechanism bolt positioning device of an automobile welding fixture, which comprises a base, a plurality of sliding rails, a sliding table, a positioning mechanism and a bolt mechanism; the sliding table is fixed on the sliding block and moves on the sliding rail through the sliding block; the positioning mechanism is arranged on the base and comprises an installation plate and a plurality of installation seats arranged on the installation plate, each installation seat is provided with a ball bearing, and the ball bearings are arranged and combined in equal intervals of 360 degrees to form positioning holes; the bolt mechanism is fixed on the sliding table and comprises a bolt and a positioning guide sleeve, and the bolt moves along the positioning guide sleeve and is inserted into the positioning hole or moves out of the positioning hole.

Furthermore, the bolt comprises a first end part, a middle part and a second end part which are connected in sequence, and a rotating handle is arranged above the first end part; the positioning guide sleeve is provided with a positioning guide sleeve precision hole extending along the length direction, the middle part of the positioning guide sleeve is arranged in the positioning guide sleeve precision hole and is in clearance fit with the positioning guide sleeve precision hole, and the second end part of the positioning guide sleeve is inserted into the positioning hole.

Furthermore, a limiting groove is arranged on the positioning guide sleeve, and a limiting shaft is arranged in the middle of the positioning guide sleeve; the limiting shaft moves in the limiting groove.

Furthermore, the limiting groove comprises a vertical groove extending along the length direction of the positioning guide sleeve and a transverse groove connected with the vertical groove at a certain angle.

Further, the latch mechanism further comprises a spring, and the spring is sleeved at the second end portion.

Further, the quantity of mount pad is four, and every mount pad forms the mounting groove including fixing the fixed connection board on the mounting panel and setting up two bearing mounting panels on fixed connection board between two bearing mounting panels, and ball bearing sets up in the mounting groove.

Furthermore, the positioning mechanism further comprises a pin shaft, each bearing mounting plate is provided with a mounting hole, the pin shaft penetrates through the mounting holes of the two bearing mounting plates, and the ball bearing sleeves the pin shaft.

Furthermore, the positioning mechanism further comprises a clamping plate, a clamping groove matched with the clamping plate is formed in the pin shaft, and the clamping plate is clamped into the clamping groove and fixed on the bearing mounting plate.

Furthermore, the bolt mechanism is fixed on the side surface of the sliding table, the positioning guide sleeve is fixedly provided with a connecting plate, and the positioning guide sleeve is fixedly connected with the sliding table through the connecting plate.

Further, the sliding mechanism bolt positioning device of the automobile welding fixture further comprises a limiting block, the limiting block is fixed on the base, and the end portion, far away from the base, of the limiting block is abutted to the sliding table.

The utility model has the advantages that: the plurality of ball bearings are combined to form accurate positioning holes and bolt clearance fit, so that the bolt and the positioning holes form linear contact on the premise of meeting the positioning accuracy requirement, the contact area is reduced, and the abrasion loss is reduced; and ball bearing self can 360 rotations, and when the bolt was manual to be fallen, the ball axle bore the friction and can follow the rotation, played the effect of buffering, reduced the friction, solved the problem that fixed locating hole easily abraded and influence positioning accuracy among the prior art effectively, improved the side thrust positioning accuracy that slides, improved white automobile body welding quality.

In order to make the advantages of the present invention clearer, the following will further describe the embodiments of the present invention with reference to the attached drawings.

Drawings

Fig. 1 is a schematic structural view of a sliding pin positioning device of a welding jig sliding mechanism of an automobile according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the sliding pin positioning device of the sliding mechanism of the welding jig for automobiles according to the preferred embodiment of the present invention when the pin mechanism is locked with the positioning mechanism.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a top view of the positioning mechanism of the sliding pin positioning device of the automobile welding jig sliding mechanism according to the preferred embodiment of the present invention.

Fig. 5 is a schematic structural view of the bolt positioning device of the sliding mechanism of the automobile welding jig according to the preferred embodiment of the present invention when the bolt mechanism is unlocked from the positioning mechanism.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structures, features and effects of the positioning structure according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

The foregoing and other features, aspects and utilities of the present invention will be apparent from the following more particular description of the preferred embodiments, as illustrated in the accompanying drawings. While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

As shown in fig. 1, the sliding mechanism bolt positioning device of the automobile welding jig comprises a base 1, a plurality of sliding rails 2, a sliding table 3, a positioning mechanism 4 and a bolt mechanism 5; the sliding device comprises a base 1, a plurality of sliding rails 2, a sliding table 3 and a sliding table, wherein the sliding rails 2 are arranged on the base 1, each sliding rail 2 is provided with a sliding block 21, and the sliding table 3 is fixed on the sliding block 21 and moves on the sliding rail 2 through the sliding block 21; the positioning mechanism 4 is installed on the base 1, the positioning mechanism 4 comprises an installation plate 401 and a plurality of installation seats 402 arranged on the installation plate 401, each installation seat 402 is provided with a ball bearing 403, and the ball bearings 403 are arranged and combined in 360 degrees in equal intervals to form positioning holes 406; the latch mechanism 5 is fixed on the sliding table 3, the latch mechanism 5 comprises a latch 501 and a positioning guide sleeve 502, and the latch 501 moves along the positioning guide sleeve 502 and is inserted into the positioning hole 406 or removed from the positioning hole 406.

Specifically, the base 1 is a rectangular frame channel steel welding part. The base 1 is fixed on the ground or other bearing positions which can be fixed and is used for bearing the bolt positioning device of the sliding mechanism of the whole automobile welding clamp.

The slide rail 2 is a strip-shaped part. The slide rail 2 is installed on the base 1, and both ends of the slide rail 2 are screwed to the upper surface of the base 1 by bolts, for example. In this embodiment, the number of the slide rails 2 is plural, and the plurality of slide rails 2 are parallel to each other and are arranged on the base 1 at intervals. Each slide rail 2 is provided with a slide block 21.

The sliding table 3 is a rectangular frame square tube welding structure. The sliding table 3 is fixed on the sliding block 21 and moves on the sliding rail 2 through the sliding block 21, and the sliding table 3 can do linear motion along the sliding rail 2. The slide table 3 is fixedly connected to the slide block 21 by bolts, for example.

Referring to fig. 1 and fig. 2, the positioning mechanism 4 is mounted on the base 1, and the positioning mechanism 4 includes a mounting plate 401, a mounting base 402, a ball bearing 403, and a pin 404.

Specifically, as shown in fig. 2 to 4, the mounting plate 401 is substantially square, the positioning mechanism 4 is mounted on the base 1 through the mounting plate 401, and the mounting plate 401 may be fixed to the base 1 by bolts, for example, but not limited thereto.

In this embodiment, the mounting plate 401 is equally divided by 360 ° and provided with a plurality of mounting seats 402, that is, the plurality of mounting seats 402 are rotationally symmetrically arranged and arranged by equal division by 360 °. The number of the mounting seats 402 is, for example, four, and is fixed to the mounting plate 401 by bolts, but not limited thereto.

The mounting seat 402 comprises a fixing connecting plate 4021 fixed on the mounting plate 401 and two bearing mounting plates 4022 arranged on the fixing connecting plate 4021, a mounting hole 402a is formed in each bearing mounting plate 4022, the two bearing mounting plates 4022 are arranged in parallel, and a mounting groove 402b is formed in the middle. A pin 404 is inserted through the mounting hole 402a of each bearing mounting plate 4022.

The ball bearing 403 is shaped like a disk, and has a through hole 403a formed along the axial direction. The ball bearing 403 is sleeved on the pin 404 and assembled on the mounting seat 402 through the pin 404, and can rotate around the pin 404. The plurality of ball bearings 403 are also arranged in a 360 ° equal distribution and rotational symmetry manner, and the positioning holes 406 are formed by arranging and combining the plurality of ball bearings 403 in a 360 ° equal distribution.

The pin 404 is cylindrical, and both ends of the pin 404 are fixed to the mounting holes 402a of the two bearing mounting plates 4022, and the ball bearings 403 are located in the mounting grooves 402b of the mounting base 402.

Further, the positioning mechanism 4 further comprises a clamping plate 405, a clamping groove 404a matched with the clamping plate 405 is formed in the pin shaft 404, and the clamping plate 405 is matched with the clamping groove 404a of the pin shaft 404 to limit axial displacement and rotation of the pin shaft 404, so that the pin shaft 404 is fixed on the bearing mounting plate 4022. In this embodiment, the clamping plate 405 is a rectangular plate-shaped structure and is fixed on one of the bearing mounting plates 4022 of the mounting base 402 by a bolt. In other embodiments of the present invention, the pin 404 may be limited to move in the axial direction in other manners.

The pin 501 of the pin mechanism 5 is inserted into the positioning hole 406 to be in clearance fit with the positioning mechanism 4, and the pin mechanism 5 is positioned by the positioning hole 406, so as to position the sliding table 3 connected with the pin mechanism 5. Specifically, the latch mechanism 5 includes a latch 501, a positioning guide 502, a stopper shaft 503, and a spring 504.

The plug 501 includes a first end portion 5011, an intermediate portion 5012, and a second end portion 5013 connected in series. In this embodiment, the first end portion 5011, the intermediate portion 5012, and the second end portion 5013 are all cylindrical and have the same axis, wherein the outer diameters of the first end portion 5011, the intermediate portion 5012, and the second end portion 5013 are sequentially reduced.

Further, a rotating handle 5014 is provided above the first end 5011 of the plug 501. The rotating handle 5014 is a laterally disposed circular rod having a length greater than the outer diameter of the first end 5011.

The middle portion 5012 of the plug pin 501 is sleeved in the positioning guide sleeve 502. In this embodiment, the middle portion 5012 of the plug 501 is provided with a limiting shaft 503, and the limiting shaft 503 is used for cooperating with the positioning guide sleeve 502 to limit the moving position of the plug 501. The stopper shaft 503 is, for example, a cylindrical rod protruding outward from the surface of the intermediate portion 5012, and the stopper shaft 503 may be screwed to the intermediate portion 5012 of the plug 501 by means of screw threads.

The second end 5013 of the pin 501 is adapted to be inserted into the locating hole 406 of the locating mechanism 4. The second end 5013 of the pin 501 is clearance fit into the locating hole 406 to locate the pin 501.

The positioning guide sleeve 502 is substantially a hollow cylinder structure, and a positioning guide sleeve precision hole 505 is formed along the length extending direction (i.e. the vertical direction) of the positioning guide sleeve 502, and the positioning guide sleeve precision hole 505 is formed in the middle of the positioning guide sleeve 502 and penetrates through the whole positioning guide sleeve 502. The plug pin 501 can move up and down in the axial direction along the positioning guide bushing precision hole 505.

Furthermore, a limiting groove 507 matched with the limiting shaft 503 is further formed on the positioning guide sleeve 502. The limiting groove 507 is formed in the side face of the positioning guide sleeve 502 and penetrates through the inner surface and the outer surface of the positioning guide sleeve 502. The retaining groove 507 is substantially L-shaped and includes a vertical groove 5071 extending along the length of the guide 502 and a transverse groove 5072 angularly connected to the vertical groove 5071. As shown in fig. 2 and 5, in this embodiment, the vertical groove 5071 is vertically connected to the horizontal groove 5072, the stopper shaft 503 moves in the stopper groove 507, the stopper groove 507 restricts the movement path of the stopper shaft 503, and the movement direction of the stopper shaft 503 is restricted within the shape range of the stopper groove 507, thereby restricting the movement position of the plug 501.

The bolt mechanism 5 is fixed on the side surface of the sliding table 3. Specifically, the outer side of the positioning guide sleeve 502 is fixedly provided with a connecting plate 506, and the positioning guide sleeve 502 is fixedly connected with the sliding table 3 through the connecting plate 506.

In this embodiment, the spring 504 is mounted within the guide sleeve 502 and fits over the second end 5013 of the pin 501. When the latch 501 is moved downward by an external force, the spring 504 is compressed, and when the latch 501 is unlocked and no external force is applied, the spring 504 springs the latch 501 back to the initial position (i.e., the upper end of the vertical slot 5071).

The sliding mechanism bolt positioning device of the automobile welding fixture further comprises a limiting block 6. Stopper 6 spiro union is fixed on base 1, mainly cooperates with slip table 3, and the tip butt that base 1 was kept away from to stopper 6 plays the effect of preliminary restriction slip table 3 positions at slip table 3.

The utility model discloses an operation order of car welding jig glide machanism bolt positioner is as follows: the operating personnel pushes the sliding table 3 to the position attached to the limiting block 6, and preliminary positioning is completed. Then, the operator lowers the pin 501 along the positioning guide sleeve precision hole 505, the second end portion 5013 of the pin 501 enters the positioning hole 406 to accurately position the sliding table 3, meanwhile, the spring 504 is compressed due to the lowering of the pin 501, and finally, the pin 501 is rotated to a certain angle, so that the limiting shaft 503 mounted on the middle portion 5012 of the pin 501 is rotated to enter the transverse groove 5072 of the limiting groove 507, the transverse groove 5072 of the limiting groove 507 clamps the limiting shaft 503 to lock the pin 501, the pin 501 is kept in a lowered state, and the sliding table 3 is accurately positioned. When the sliding table 3 needs to be moved, an operator rotates the plug 501 in the opposite direction, so that the limit shaft 503 rotates to the lower end position of the vertical groove 5071 of the limit groove 507, the limit shaft 503 is unlocked, when the operator releases the force applied to the plug 501, the plug 501 automatically returns to the initial position under the elastic force of the spring 504, the plug 501 automatically disengages from the positioning hole 406, and the sliding table 3 can freely move. When the slide table 3 needs to be positioned or moved, the above operations are repeated to accomplish the accurate positioning and movement of the slide table 3.

The utility model has the advantages that: by adopting the plurality of ball bearings 403 to form the accurate positioning hole 406 and the bolt 501 in clearance fit, on the premise of meeting the positioning accuracy requirement, the bolt 501 and the positioning hole 406 form linear contact, the contact area is reduced, and the abrasion loss is reduced; and ball bearing 403 self can 360 rotations, and when bolt 501 descends manually, ball bearing 403 can follow the rotation by friction, plays the effect of buffering, reduces the friction, has solved the problem that fixed locating hole easily wears and influences positioning accuracy among the prior art effectively, improves the side thrust positioning accuracy that slides, improves white automobile body welding quality. In addition, the purpose of accurate positioning is achieved by self-locking through the arrangement of the limiting shaft 503 and the limiting groove 507, and the application range is wider. Further, a spring 504 is arranged between the positioning guide sleeve 502 and the bolt 501, when the bolt 501 rotates to unlock, the bolt 501 can automatically reset under the action of the elasticity of the spring 504, and the operation intensity is reduced.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person skilled in the art can make various changes or modifications to the equivalent embodiments without departing from the scope of the present invention, but all the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.

Claims

1. A sliding mechanism bolt positioning device of an automobile welding fixture is characterized by comprising a base (1), a plurality of sliding rails (2), a sliding table (3), a positioning mechanism (4) and a bolt mechanism (5); the sliding rails (2) are mounted on the base (1), a sliding block (21) is arranged on each sliding rail (2), and the sliding table (3) is fixed on the sliding block (21) and moves on the sliding rails (2) through the sliding block (21); the positioning mechanism (4) is installed on the base (1), the positioning mechanism (4) comprises an installation plate (401) and a plurality of installation seats (402) arranged on the installation plate (401), each installation seat (402) is provided with a ball bearing (403), and the ball bearings (403) are arranged and combined in 360-degree equal intervals to form positioning holes (406); the bolt mechanism (5) is fixed on the sliding table (3), the bolt mechanism (5) comprises a bolt (501) and a positioning guide sleeve (502), and the bolt (501) moves along the positioning guide sleeve (502) and is inserted into the positioning hole (406) or moves out of the positioning hole (406).

2. The automotive welding jig sliding mechanism bolt positioning device as defined in claim 1, characterized in that the bolt (501) comprises a first end portion (5011), an intermediate portion (5012) and a second end portion (5013) which are connected in sequence, and a rotating handle (5014) is arranged above the first end portion (5011); the positioning guide sleeve (502) is provided with a positioning guide sleeve precision hole (505) extending along the length direction, the middle part (5012) is arranged in the positioning guide sleeve precision hole (505) and is in clearance fit with the positioning guide sleeve precision hole (505), and the second end part (5013) is used for being inserted into the positioning hole (406).

3. The automotive welding jig sliding mechanism bolt positioning device as claimed in claim 2, characterized in that the positioning guide sleeve (502) is provided with a limiting groove (507), and the middle part (5012) is provided with a limiting shaft (503); the limiting shaft (503) moves in the limiting groove (507).

4. The automotive welding jig sliding mechanism bolt positioning device according to claim 3, characterized in that the limiting groove (507) comprises a vertical groove (5071) extending along the length direction of the positioning guide sleeve (502) and a horizontal groove (5072) connected with the vertical groove (5071) at an angle.

5. The automotive welding jig slide mechanism pin positioning device of claim 2, wherein the pin mechanism (5) further comprises a spring (504), the spring (504) being sleeved at the second end (5013).

6. The automotive welding jig sliding mechanism bolt positioning device as defined in claim 1, wherein the number of the mounting seats (402) is four, each of the mounting seats (402) comprises a fixed connection plate (4021) fixed on the mounting plate (401) and two bearing mounting plates (4022) arranged on the fixed connection plate (4021), a mounting groove (402b) is formed between the two bearing mounting plates (4022), and the ball bearing (403) is arranged in the mounting groove (402 b).

7. The automobile welding jig sliding mechanism bolt positioning device as claimed in claim 6, characterized in that the positioning mechanism (4) further comprises a pin shaft (404), each of the bearing mounting plates (4022) is provided with a mounting hole (402a), the pin shaft (404) is arranged on the mounting holes (402a) of the two bearing mounting plates (4022) in a penetrating manner, and the ball bearing (403) is arranged on the pin shaft (404) in a sleeved manner.

8. The automotive welding jig sliding mechanism bolt positioning device according to claim 7, characterized in that the positioning mechanism (4) further comprises a clamping plate (405), the pin (404) is provided with a clamping groove (404a) matched with the clamping plate (405), and the clamping plate (405) is clamped into the clamping groove (404a) and fixed on the bearing mounting plate (4022).

9. The automotive welding jig sliding mechanism bolt positioning device according to any one of claims 1 to 8, characterized in that the bolt mechanism (5) is fixed on the side surface of the sliding table (3), a connecting plate (506) is fixedly arranged on the positioning guide sleeve (502), and the positioning guide sleeve (502) is fixedly connected with the sliding table (3) through the connecting plate (506).

10. The automotive welding jig sliding mechanism bolt positioning device according to any one of claims 1 to 8, further comprising a limiting block (6), wherein the limiting block (6) is fixed on the base (1), and an end of the limiting block (6) far away from the base (1) abuts against the sliding table (3).