CN219805588U

CN219805588U - Welding fixture for annular parts

Info

Publication number: CN219805588U
Application number: CN202320004460.6U
Authority: CN
Inventors: 张学东
Original assignee: Kaifostone Wuhan Precision Manufacturing Co ltd
Current assignee: Kaifostone Wuhan Precision Manufacturing Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-10-10
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a welding fixture for annular parts, which comprises a workbench, wherein an adjusting component is arranged on the top wall of the workbench, and a clamping component is arranged on the side wall of the adjusting component; this welding jig of annular part drives unidirectional screw rod, second bevel gear through servo motor and rotates, and first bevel gear, the bi-directional screw rod of meshing follow and rotate, and the slider is close to each other and drives annular clamp splice and slipmat and be close to each other and fix annular part centre gripping for can carry out the centre gripping to annular part of different diameters fixedly, and increase friction with slipmat contact, whole annular part is held more firmly.

Description

Welding fixture for annular parts

Technical Field

The utility model relates to the technical field of welding, in particular to a welding fixture for annular parts.

Background

Vacuum brazing refers to heating of workpieces in a vacuum chamber, is mainly used for welding products with high quality and oxidizable materials, and is a very promising welding technology from the forty years to date, and is firstly applied to brazing copper and stainless steel parts in the electronic industry and then applied to plate-fin heat exchangers in the aviation industry, atomic energy industry and manufacturing stainless steel.

The patent number CN201922217009.9 discloses a welding fixture for annular sheet metal parts, which comprises a bottom plate, wherein the bottom plate is provided with a stand column, the stand column is provided with a supporting plate, the supporting plate is provided with a supporting rod, the supporting rod is provided with a first fastening nut, the supporting rod is provided with a hinging seat, the hinging seat is provided with a fixed clamping table, the fixed clamping table is provided with a hinging bolt, the hinging seat is provided with a first semicircular groove, the first semicircular groove is provided with a first C-shaped groove, the fixed clamping table is provided with a sliding rod, the sliding rod is provided with a movable clamping table and a top piece, the movable clamping table is provided with a second semicircular groove, the second semicircular groove is provided with a second C-shaped groove, the second C-shaped groove is concentric with the second semicircular groove, the two sliding rods are sleeved with springs, the springs are positioned between the movable clamping table and the top piece, the upper ends of the two sliding rods are connected with second fastening nuts matched with the top piece in a threaded manner, and the upper ends of the movable clamping table are provided with handles; the problem of easy dislocation when the annular sheet metal component welds, scalding the hand is solved.

The device has certain disadvantages when in use: when the annular sheet metal part is inserted into the first semicircular groove, the circular truncated cone-shaped sheet metal part is in contact with the first C-shaped groove, under the action of the spring, the annular sheet metal part and the circular truncated cone-shaped sheet metal part are covered by the second semicircular groove and the second C-shaped groove respectively, so that the clamping of the annular sheet metal part is completed, but the clamping specification of the annular sheet metal part limited by the diameter of the first semicircular groove during clamping is that the annular sheet metal part is not firm enough when the diameter of the annular sheet metal part is larger than that of the first semicircular groove, and the contact points between the annular sheet metal part and the first semicircular groove and the second semicircular groove are small during clamping.

To this end, the present utility model provides a welding jig for annular parts to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a welding fixture for annular parts, which solves the problems.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the welding fixture for the annular parts comprises a workbench, wherein an adjusting component is arranged on the top wall of the workbench, and a clamping component is arranged on the side wall of the adjusting component;

the clamping assembly comprises a placing table, a cross-shaped groove is formed in the top wall of the placing table, a servo motor is fixedly connected to the right wall of the placing table, a bidirectional screw is rotationally connected to the inner wall of the cross-shaped groove, a first bevel gear is fixedly connected to the outer wall of the bidirectional screw, a unidirectional screw is rotationally connected to the side wall of the cross-shaped groove, a second bevel gear is fixedly connected to one end of the unidirectional screw, which is adjacent, of the bidirectional screw, a sliding block is fixedly connected to the top wall of the sliding block in a threaded mode, and an anti-slip pad is fixedly connected to the inner wall of the annular clamping block.

Further, place a platform lateral wall and adjusting part fixed connection, the second bevel gear all meshes with first bevel gear, servo motor's power shaft runs through a platform and corresponding one-way screw rod fixed connection through the bearing.

Through above-mentioned technical scheme, place the platform and mainly be used for placing annular part and use.

Further, the screw thread direction of unidirectional screw is opposite, the slider outer wall all laminates with cross recess inner wall, annular clamp splice diapire all laminates with placing the platform roof.

Through above-mentioned technical scheme, annular clamp splice carries out the centre gripping to annular part fixedly.

Further, the adjusting component comprises a driving motor, the driving motor is fixedly connected with the workbench, a cavity is formed in the workbench, and power shafts of the driving motor penetrate through the workbench through bearings and extend into the cavity.

Through above-mentioned technical scheme, the cavity is mainly used to install No. two gears and No. one gear.

Further, a first gear is fixedly connected with the power shaft of the driving motor, a second gear is rotatably arranged at four corners of the inner wall of the cavity through rotating shafts, and the second gear is meshed with the first gear.

Through above-mentioned technical scheme, gear No. one drives gear No. two and rotates when rotating.

Further, the equal fixedly connected with mounting bracket in workstation roof four corners, the equal rotation of mounting bracket inner wall is connected with the threaded rod, the equal spiro union of threaded rod outer wall runs through there is the movable block.

Through the technical scheme, the moving block drives the placing table to move when moving up and down.

Further, the movable block side wall is fixedly connected with the placing table, and the top end of the rotating shaft sequentially penetrates through the workbench, the mounting frame and the corresponding threaded rod through bearings.

Further, supporting legs are fixedly connected to four corners of the bottom wall of the workbench.

Through the technical scheme, the supporting legs play a role in supporting the whole device.

Advantageous effects

The utility model provides a welding fixture for annular parts. Compared with the prior art, the device has the following

The beneficial effects are that:

(1) The welding fixture for the annular part drives the unidirectional screw rod and the second bevel gear to rotate through the servo motor, the meshed first bevel gear and bidirectional screw rod are used for following to rotate, the sliding blocks are mutually close to drive the annular clamping blocks and the anti-slip pads to mutually close to clamp and fix the annular part, so that the annular part with different diameters can be clamped and fixed, friction is increased by contact with the anti-slip pads, and the whole annular part is clamped more firmly.

(2) The welding fixture for the annular part is characterized in that the driving motor drives the first gear and the second gear to rotate, the second gear drives the rotating shaft and the threaded rod to rotate, and the moving block drives the placing table to move up and down to be adjusted to a proper height, so that the height of the annular part can be adjusted, the welding fixture is more convenient to weld, and the operation of workers is facilitated.

Drawings

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

FIG. 2 is a front view of the external structure of the present utility model;

FIG. 3 is a front view of the external structure of the present utility model;

fig. 4 is a top view of the internal structure of the table of the present utility model.

In the figure 1, a workbench; 2. an adjustment assembly; 21. a mounting frame; 22. a threaded rod; 23. a moving block; 24. a second gear; 25. a first gear; 26. a driving motor; 3. a clamping assembly; 31. a placement table; 32. a cross-shaped groove; 33. a servo motor; 34. an anti-slip pad; 35. an annular clamping block; 36. a bidirectional screw; 37. a unidirectional screw; 38. a first bevel gear; 39. and a second bevel gear.

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.

Embodiment one:

referring to fig. 1-3, a welding fixture for annular parts comprises a workbench 1, wherein an adjusting component 2 is arranged on the top wall of the workbench 1, and a clamping component 3 is arranged on the side wall of the adjusting component 2;

the clamping assembly 3 comprises a placing table 31, a cross-shaped groove 32 is formed in the top wall of the placing table 31, a servo motor 33 is fixedly connected to the right wall of the placing table 31, a bidirectional screw rod 36 is rotatably connected to the inner wall of the cross-shaped groove 32, a first bevel gear 38 is fixedly connected to the outer wall of the bidirectional screw rod 36, a unidirectional screw rod 37 is rotatably connected to the side wall of the cross-shaped groove 32, a second bevel gear 39 is fixedly connected to one end of the unidirectional screw rod 37 adjacent to the bidirectional screw rod 36, a sliding block penetrates through the unidirectional screw rod 37 in a threaded mode, an annular clamping block 35 is fixedly connected to the top wall of the sliding block, and an anti-slip pad 34 is fixedly connected to the inner wall of the annular clamping block 35;

in the embodiment of the present utility model, the purpose of this arrangement is that the anti-slip pad 34 is made of rubber, which can increase friction with the annular part, so that the annular part is more firmly clamped and fixed in the later stage.

Embodiment two:

referring to fig. 1-3, the present embodiment provides a technical solution based on the first embodiment: the side wall of the placing table 31 is fixedly connected with the adjusting component 2, the second bevel gear 39 is meshed with the first bevel gear 38, the power shaft of the servo motor 33 penetrates through the placing table 31 through the bearing to be fixedly connected with the corresponding unidirectional screw rod 37, the threads of the unidirectional screw rod 37 are opposite in direction, the outer wall of the sliding block is attached to the inner wall of the cross-shaped groove 32, the bottom wall of the annular clamping block 35 is attached to the top wall of the placing table 31, the adjusting component 2 comprises a driving motor 26, the driving motor 26 is fixedly connected with the workbench 1, a cavity is formed in the workbench 1, the power shaft of the driving motor 26 penetrates through the workbench 1 through the bearing to extend into the cavity, the power shaft of the driving motor 26 is fixedly connected with a first gear 25, four corners of the inner wall of the cavity are rotatably provided with a second gear 24 through rotating shafts, the second gear 24 is meshed with the first gear 25, four corners of the top wall of the workbench 1 are fixedly connected with a mounting frame 21, the inner wall of the mounting frame 21 is rotatably connected with a threaded rod 22, the outer wall of the threaded rod 22 is fixedly connected with the moving block 23 through the threaded rod 23, the side wall of the moving block 23 is fixedly connected with the placing table 31, the top end of the rotating shaft is fixedly connected with the corresponding bottom wall 22 through the bearing in turn, the four corners of the workbench 1 are fixedly connected with the supporting legs of the workbench 1;

in the embodiment of the present utility model, the purpose of this arrangement is that the adjusting assembly 2 drives the placement table 31 to adjust the height up and down, so that the annular part can be driven to adjust the height, and different heights can be matched according to different staff, so that the welding is more convenient.

And all that is not described in detail in this specification is well known to those skilled in the art.

When the device works, firstly, an annular part to be clamped is placed on the placing table 31, the servo motor 33 and the driving motor 26 are communicated through an external power supply, the servo motor 33 drives the one-way screw rod 37 to rotate, so that the second bevel gear 39 is driven to rotate, the two-way screw rod 36 follows to rotate through driving the meshed first bevel gear 38, the one-way screw rod 37 and the two-way screw rod 36 drive the sliding blocks to be close to each other while rotating, the sliding blocks drive the annular clamping blocks 35 and the anti-slip pads 34 to be close to each other until the annular part is clamped and fixed while being close to each other, the driving motor 26 drives the first gear 25 to rotate, the meshed second gear 24 is synchronously driven to rotate, the second gear 24 drives the rotating shaft to rotate while rotating, and meanwhile, the threaded rod 22 is driven to rotate, so that the moving block 23 moves linearly, and the placing table 31 is driven to move up and down to be adjusted to a proper height while moving.

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. The utility model provides a welding jig of annular part, includes workstation (1), its characterized in that: an adjusting component (2) is arranged on the top wall of the workbench (1), and a clamping component (3) is arranged on the side wall of the adjusting component (2);

clamping component (3) are including placing platform (31), cross recess (32) have been seted up to placing platform (31) roof, place platform (31) right wall fixedly connected with servo motor (33), cross recess (32) inner wall rotation is connected with bi-directional screw (36), bi-directional screw (36) outer wall fixedly connected with first bevel gear (38), cross recess (32) lateral wall rotation is connected with unidirectional screw (37), the equal fixedly connected with second bevel gear (39) of adjacent one end of unidirectional screw (37), bi-directional screw (36) and equal spiro union of unidirectional screw (37) run through there is the slider, equal fixedly connected with annular clamp splice (35) of slider roof, equal fixedly connected with slipmat (34) of annular clamp splice (35) inner wall.

2. A welding jig for annular parts according to claim 1, wherein: the side wall of the placement table (31) is fixedly connected with the adjusting component (2), the second bevel gears (39) are meshed with the first bevel gears (38), and the power shaft of the servo motor (33) penetrates through the placement table (31) through a bearing to be fixedly connected with the corresponding unidirectional screw rod (37).

3. A welding jig for annular parts according to claim 1, wherein: the screw thread direction of unidirectional screw rod (37) is opposite, the slider outer wall all laminates with cross recess (32) inner wall, annular clamp splice (35) diapire all laminates with placing platform (31) roof.

4. A welding jig for annular parts according to claim 1, wherein: the adjusting component (2) comprises a driving motor (26), the driving motor (26) is fixedly connected with the workbench (1), a cavity is formed in the workbench (1), and power shafts of the driving motor (26) penetrate through the workbench (1) through bearings and extend into the cavity.

5. The welding jig for annular parts according to claim 4, wherein: the power shaft of driving motor (26) fixedly connected with No. one gear (25), no. two gears (24) are all installed through the pivot rotation in cavity inner wall four corners, no. two gears (24) all mesh with No. one gear (25).

6. The welding jig for annular parts according to claim 5, wherein: the workbench is characterized in that mounting frames (21) are fixedly connected to four corners of the top wall of the workbench (1), threaded rods (22) are rotatably connected to the inner walls of the mounting frames (21), and moving blocks (23) penetrate through the outer walls of the threaded rods (22) in a threaded mode.

7. The welding jig for annular parts according to claim 6, wherein: the side walls of the moving blocks (23) are fixedly connected with the placing table (31), and the top ends of the rotating shafts sequentially penetrate through the workbench (1) and the mounting frame (21) through bearings and are fixedly connected with the corresponding threaded rods (22).

8. A welding jig for annular parts according to claim 1, wherein: supporting legs are fixedly connected to four corners of the bottom wall of the workbench (1).