CN220312070U

CN220312070U - A workpiece fixture with gap size splicing adjustment function

Info

Publication number: CN220312070U
Application number: CN202321548781.9U
Authority: CN
Inventors: 徐安莲; 唐远金; 杜彦斌; 罗素琴
Original assignee: Jiangsu Liutai Welding Technology Co ltd
Current assignee: Suzhou Liutai Welding Technology Co., Ltd.
Priority date: 2023-06-17
Filing date: 2023-06-17
Publication date: 2024-01-09
Anticipated expiration: 2033-06-17

Abstract

The utility model relates to the technical field of workpiece fixtures and discloses a workpiece fixture with a gap splicing and adjusting function, which comprises a processing table, a fixing table, a clamping mechanism and a top edge mechanism, wherein the fixing table is positioned at the lower end outside the processing table, the clamping mechanism comprises a first hydraulic cylinder, a connecting rod is rotatably arranged at the left side of the upper end of the first hydraulic cylinder, a push rod of the first hydraulic cylinder is rotatably connected with the tail end of the connecting rod, a bottom sliding groove is arranged at the lower end inside the left side of the connecting rod, a top sliding groove is arranged at the upper end of the bottom sliding groove, a sliding block is slidably arranged at the lower end of the bottom sliding groove, a pressing block is fixedly arranged at the lower end of the sliding block, a sliding rod is arranged at the upper end of the sliding block positioned inside the top sliding groove, a reset spring is arranged at the upper end of the sliding rod, and a limit column is arranged at the upper end of the reset spring. The position of the pressing block is changed, so that the pressing block can avoid welding seams.

Description

Workpiece clamp with gap size splicing and adjusting functions

Technical Field

The utility model relates to the technical field of workpiece clamps, in particular to a workpiece clamp with a gap size splicing and adjusting function.

Background

Friction stir welding refers to the process of using heat generated by friction between a welding tool rotating at a high speed and a workpiece to locally melt a welded material, and when the welding tool moves forwards along a welding interface, the plasticized material flows from the front part to the rear part of the welding tool under the action of the rotating friction force of the welding tool, and a compact solid-phase welding seam is formed under the extrusion of the welding tool.

The working principle is as follows: the stirring pin is inserted into the workpiece to be welded by the stirring head which rotates at a high speed. When the workpiece to be welded is tightly contacted with the shaft shoulder of the stirring head, the stirring head moves relative to the workpiece along the welding direction, the strong friction between the stirring head and the workpiece enables the welding temperature to rise rapidly, the welding seam material is in a thermoplastic state, and the extrusion forming is compact and reliable. In order to ensure the quality of the welded joint and to ensure the stability of the weldment work piece, it is often necessary to design a special fixture to secure the test piece.

In the prior art, a hydraulic cylinder is matched with a clamp to press and fix a workpiece, when a welding line is just below the clamp, a friction welding head is close to the clamp to enable the clamp to rise and avoid, and the clamp is reset after the avoidance is finished, however, the bottom of a conventional clamp is a plane, the welding line is at high temperature just after the welding is finished, the welding line is deformed due to the fact that the welding line is pressed down by the clamp, and the welding effect is affected; the fixture is used for fixing two tools to be welded, the common workpiece fixture is used for fixing the workpieces, the gap between the two workpieces is adjusted manually and then clamped and fixed, and therefore the workpiece fixture with the gap size splicing and adjusting function is inconvenient.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a workpiece clamp with a gap size splicing and adjusting function, so as to solve the problems in the prior art.

(2) Technical proposal

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a work piece holder with gap size concatenation regulatory function, includes processing platform, fixed station, fixture and topside mechanism, the fixed station is located the outside lower extreme of processing platform, and fixed station and processing platform fixed connection, fixture includes first pneumatic cylinder, the left side rotation of first pneumatic cylinder upper end is installed the connecting rod, the ejector pin of first pneumatic cylinder is connected with the end rotation of connecting rod, the inside lower extreme in connecting rod left side is provided with end spout, the upper end of end spout is provided with top spout, the lower extreme slidable mounting of end spout has the slider, the fixed briquetting that is provided with of lower extreme of slider, the slider upper end is located the inside slide bar that is provided with of top spout, reset spring is installed to the inside upper end of slide bar, reset spring upper end is located the upper end of slide bar and installs the spacing post, the inside of top spout is provided with the spacing circular slot of a plurality of equidistance distributions, and spacing post and spacing circular slot looks adaptation.

Preferably, the clamping mechanisms are eight, the eight clamping structures are respectively arranged on the periphery of the processing table at the upper end of the fixed table, and two clamping mechanisms are arranged on the periphery of each surface of the processing table.

Preferably, the top edge mechanism is positioned outside the periphery of the processing table at the upper end of the fixed table, and one top edge mechanism is arranged outside each surface around the processing table.

Preferably, the internally mounted of reset spring has the telescopic link between spacing post and the slide bar, and the both ends of telescopic link respectively with spacing post and slide bar fixed connection, reset spring makes spacing post possess automatic re-setting.

Preferably, the lower end of the pressing block is provided with an avoidance groove, the avoidance groove and the pressing block are integrally formed, and the avoidance groove is used for avoiding welding seams.

Preferably, the top edge mechanism comprises a second hydraulic cylinder, a top disc is arranged outside the ejector rod of the second hydraulic cylinder, the second hydraulic cylinder is fixedly connected with the fixed table through a fixing frame, and the top disc is used for pushing a workpiece.

(3) Advantageous effects

Compared with the prior art, the utility model provides the workpiece clamp with the gap size splicing and adjusting functions, which has the following beneficial effects:

the first hydraulic cylinder is controlled to slightly lift the pressing block and separate from the surface of the workpiece, the limiting column is pulled upwards to lift the pressing block from the limiting circular groove, limiting of the limiting column by the limiting circular groove is canceled, then the limiting column is moved to enable the sliding rod to move in the top sliding groove, the pressing block moves along with the limiting column, the avoidance groove at the lower end of the pressing block moves to the upper end of the welding line, or the pressing block integrally moves to a position far away from the welding line, the limiting column is loosened, the reset spring resets the limiting column to enable the limiting column to be reset and inserted into the limiting circular groove, so that position adjustment of the pressing block is completed, the position of the pressing block is changed to achieve the effect of avoiding the welding line, and the problem that welding quality is affected by welding line damage when an existing workpiece clamp presses and clamps in the background art.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of a connecting rod structure of the present utility model;

fig. 3 is an enlarged view of a portion of the area a of fig. 2 in accordance with the present utility model.

In the figure: 1. a processing table; 2. a fixed table; 3. a first hydraulic cylinder; 4. a second hydraulic cylinder; 5. a top plate; 6. a connecting rod; 7. a bottom chute; 8. a top chute; 9. a slide block; 10. briquetting; 11. an avoidance groove; 12. limiting round grooves; 13. a slide bar; 14. a limit column; 15. a telescopic rod; 16. and a return spring.

Description of the embodiments

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.

The utility model provides a technical scheme, referring to fig. 1, 2 and 3, of a workpiece clamp with gap size splicing and adjusting functions, the workpiece clamp comprises a processing table 1, a fixing table 2, a clamping mechanism and a top edge mechanism, wherein the fixing table 2 is positioned at the lower end outside the processing table 1, the fixing table 2 is fixedly connected with the processing table 1, the clamping mechanism comprises a first hydraulic cylinder 3, a connecting rod 6 is rotatably arranged at the left side of the upper end of the first hydraulic cylinder 3, a push rod of the first hydraulic cylinder 3 is rotatably connected with the tail end of the connecting rod 6, a bottom chute 7 is arranged at the lower end inside the left side of the connecting rod 6, a top chute 8 is arranged at the upper end of the bottom chute 7, a sliding block 9 is slidably arranged at the lower end of the bottom chute 7, a pressing block 10 is fixedly arranged at the lower end of the sliding block 9, a sliding rod 13 is arranged inside the sliding block 9, a reset spring 16 is arranged at the upper end inside the sliding rod 13, a limit post 14 is arranged at the upper end of the reset spring 16, a plurality of limit round grooves 12 distributed at equal intervals are arranged inside the top chute 8, and the limit post 14 is matched with the limit round grooves 12.

When the welding machine is used, the first hydraulic cylinder 3 is controlled to slightly lift the pressing block 10 off the surface of a workpiece, the limiting column 14 is pulled upwards to lift the pressing block 10 from the limiting round groove 12, the limiting of the limiting round groove 12 to the limiting column 14 is canceled, then the limiting column 14 is moved to enable the sliding rod 13 to move in the top sliding groove 8, at the moment, the pressing block 10 moves along with the limiting column, the avoiding groove 11 at the lower end of the pressing block 10 moves to the upper end of a welding line, or the pressing block 10 integrally moves to a position far away from the welding line, the limiting column 14 is loosened, the reset spring 16 resets to enable the limiting column 14 to be reset to be inserted into the limiting round groove 12, so that the position adjustment of the pressing block 10 is completed, and the position of the pressing block 10 is changed in the mode to play a role of avoiding the welding line. It should be noted that, for the sake of saving the space, the innovative elements of the present patent are highlighted, and the present solution is to improve the related structures thereof on the basis of the existing workpiece fixture, such as some conventional structures of the hydraulic cylinder, the telescopic rod 15, the return spring 16, etc., which are not described in the present patent.

Referring to fig. 1, eight clamping mechanisms are provided, and the eight clamping mechanisms are respectively disposed on the periphery of the processing table 1 at the upper end of the fixed table 2, and two clamping mechanisms are disposed on the periphery of each surface of the processing table 1.

Referring to fig. 1, the top edge mechanism is located at the outer periphery of the processing table 1 at the upper end of the fixing table 2, and a top edge mechanism is located at the outer periphery of each surface of the periphery of the processing table 1.

Referring to fig. 2 and 3, a telescopic rod 15 is installed in the return spring 16 between the limiting post 14 and the sliding rod 13, and two ends of the telescopic rod 15 are fixedly connected with the limiting post 14 and the sliding rod 13 respectively, and the return spring 16 enables the limiting post 14 to have automatic return.

Referring to fig. 2, an avoidance groove 11 is formed at the lower end of the pressing block 10, the avoidance groove 11 and the pressing block 10 are integrally formed, and the avoidance groove 11 is used for avoiding welding seams.

Referring to fig. 1, the top edge mechanism includes a second hydraulic cylinder 4, a top disc 5 is mounted outside a top rod of the second hydraulic cylinder 4, the second hydraulic cylinder 4 is fixedly connected with the fixed table 2 through a fixing frame, and the top disc 5 is used for pushing a workpiece.

The working principle of the device is as follows: when the workpiece is required to be clamped, the workpiece is placed at the upper end of the processing table 1, the second hydraulic cylinder 4 is started to extrude the workpiece, so that the two workpieces are mutually attached, a gap is sequentially reduced, the first hydraulic cylinder 3 is started, the first hydraulic cylinder 3 jacks up the tail end of the connecting rod 6 to enable the tail end of the connecting rod 6 to overturn, the pressing block 10 presses down the workpiece, when the welding line is positioned at the lower end of the pressing block 10, the first hydraulic cylinder 3 is controlled to enable the pressing block 10 to slightly lift and separate from the surface of the workpiece, the limiting column 14 is pulled upwards to enable the limiting column 14 to lift from the limiting circular groove 12, limiting of the limiting circular groove 12 to the limiting column 14 is canceled, then the limiting column 14 is moved to enable the sliding rod 13 to move in the jacking chute 8, at the moment, the pressing block 10 moves along with the limiting column, the avoiding groove 11 at the lower end of the pressing block 10 is moved to the upper end of the welding line, or the pressing block 10 is integrally moved to a position far away from the position, the limiting column 14 is loosened, the reset spring 16 resets to enable the limiting column 14 to be reset and inserted into the limiting circular groove 12 to be fixed so that the position of the pressing block 10 is adjusted to be completed, and the position of the welding line is changed in the mode.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A workpiece fixture with gap size splicing adjustment function, including a processing table (1), a fixed table (2), a clamping mechanism and a top edge mechanism. The fixed table (2) is located outside the processing table (1) The lower end of the first hydraulic cylinder (3), and the fixed platform (2) is fixedly connected to the processing platform (1), is characterized in that: the clamping mechanism includes a first hydraulic cylinder (3), and the left side of the upper end of the first hydraulic cylinder (3) rotates A connecting rod (6) is installed, and the top rod of the first hydraulic cylinder (3) is rotationally connected to the end of the connecting rod (6). A bottom chute (7) is provided at the lower end of the left inner side of the connecting rod (6). ), the upper end of the bottom chute (7) is provided with a top chute (8), the lower end of the bottom chute (7) is slidably installed with a slider (9), and the lower end of the slider (9) is fixed A pressure block (10) is provided. The upper end of the slide block (9) is located inside the top chute (8) and a sliding rod (13) is provided. A return spring (16) is installed on the upper end of the sliding rod (13). , the upper end of the return spring (16) is located at the upper end of the sliding rod (13) and a limiting column (14) is installed, and a number of equidistantly distributed limiting circular grooves (12) are provided inside the top chute (8). And the limiting column (14) is adapted to the limiting circular groove (12).

2. A workpiece clamp with gap size splicing adjustment function according to claim 1, characterized in that: eight clamping mechanisms are provided, and the eight clamping structures are respectively arranged on the fixed table (2) There are two clamping mechanisms on the outside of each surface around the upper processing table (1).

3. A workpiece fixture with gap size splicing adjustment function according to claim 1, characterized in that: the top edge mechanism is located outside the upper end of the fixed table (2) around the processing table (1), and the processing table (1) 1) There is a top edge mechanism on each side.

4. A workpiece clamp with gap size splicing adjustment function according to claim 1, characterized in that: the internal installation of the return spring (16) between the limiting column (14) and the sliding rod (13) There is a telescopic rod (15), and the two ends of the telescopic rod (15) are fixedly connected to the limiting column (14) and the sliding rod (13) respectively.

5. A workpiece clamp with a gap size splicing adjustment function according to claim 1, characterized in that: an escape groove (11) is provided at the lower end of the pressure block (10), and the escape groove (11) is in line with the gap size splicing adjustment function. The pressing block (10) is integrally formed.

6. A workpiece fixture with gap size splicing adjustment function according to claim 3, characterized in that: the top edge mechanism includes a second hydraulic cylinder (4), and the second hydraulic cylinder (4) tops A top plate (5) is installed on the outside of the rod, and the second hydraulic cylinder (4) and the fixed platform (2) are fixedly connected through a fixed bracket.