CN223277600U

CN223277600U - A frame parts processing and fixing device

Info

Publication number: CN223277600U
Application number: CN202422432235.XU
Authority: CN
Inventors: 黄雅久; 党正正; 羊自力; 杨雷; 何羿泽; 杨维; 胡小红; 周亮
Original assignee: Hunan Aerospace Institute of Mechanical and Electrical Equipment and Special Materials
Current assignee: Hunan Aerospace Institute of Mechanical and Electrical Equipment and Special Materials
Priority date: 2024-10-09
Filing date: 2024-10-09
Publication date: 2025-08-29
Anticipated expiration: 2034-10-09

Abstract

The utility model provides a frame part machining and fixing device. The frame type part machining and fixing device comprises a bottom plate, a first boss and a mounting plate, wherein the first boss and the mounting plate are sequentially arranged upwards from the upper surface of the bottom plate, a first mounting hole for fixing a part is formed in the mounting plate, a first mounting surface for being attached to a second mounting surface of the part is formed in the upper surface of the mounting plate, a U-shaped groove for being fixed to a machine tool workbench is formed in the bottom plate, and adjusting columns with adjustable height are arranged around the bottom plate. The utility model overcomes the defects of the prior conditions, improves the product percent of pass and the processing efficiency, and meets the demands of scientific research and production.

Description

Frame class part processing fixing device

Technical Field

The utility model relates to the technical field of part machining, in particular to a frame part machining fixing device.

Background

As shown in fig. 1 and 2, a certain type of frame part 10 is made of 2a12, the inner cavity of the frame part is penetrated to form a plurality of cavities, the wall is thin and the thickness is uneven, and a plurality of steps designed on the frame part are different in height, such as a cross rib connecting support is arranged in the middle. The part 10 has a second mounting surface 101 on one side and a third mounting surface 102 on the other side, the flatness of the first mounting surface 101 and the second mounting surface 102 is required to be not more than 0.005mm, the surface roughness is not more than Ra0.4, and the parallelism of the two mounting surfaces is not more than 0.008mm.

The equal-height support is adopted in the processing process, the action points of the stress point and the clamping point in the processing are relatively far, the cutting force is large when the cutter cuts a workpiece, the workpiece is stressed greatly and has insufficient rigidity, deformation and micro-shaking are generated, the size precision, the shape precision and the surface quality of the workpiece are influenced, the processing efficiency is reduced, and the qualification rate is reduced.

Disclosure of utility model

The utility model aims to provide a frame part machining and fixing device which can not only play a role in fixing, but also enable clamping of products to be stable, so that the purposes of improving qualification rate and production efficiency are achieved.

The technical scheme is that the frame part machining and fixing device comprises a bottom plate, a first boss and a mounting plate, wherein the first boss and the mounting plate are sequentially arranged upwards from the upper surface of the bottom plate, a first mounting hole for fixing a part is formed in the mounting plate, a first mounting surface for being attached to a second mounting surface of the part is formed in the upper surface of the mounting plate, a U-shaped groove for being fixed with a machine tool workbench is formed in the bottom plate, and height-adjustable adjusting columns are arranged around the bottom plate.

Preferably, the adjusting column comprises a copper sleeve and a supporting column, the bottom of the copper sleeve is fixed on the bottom plate, and a threaded hole for fixing the supporting column is formed in the top of the copper sleeve.

Preferably, the support column comprises a screw rod and a fixing column connected to one end of the screw rod, the screw rod is connected to the threaded hole, and the diameter of the fixing column is equal to that of the copper sleeve.

Preferably, the end of the fixed column far away from the screw rod forms a cone.

Preferably, the U-shaped grooves are arranged around the bottom plate.

Preferably, the mounting plate is a rectangular plate, and the first mounting holes are formed in the periphery of the mounting plate.

Preferably, through holes are formed in the mounting plate and the first boss.

Preferably, the mounting plate is provided with a second boss, and the first mounting hole is formed in the second boss.

Compared with the related art, the utility model has the beneficial effects that:

1. Aiming at the problem that the precision of the mechanical machining form and position tolerance of the frame parts is out of tolerance, the drawing requirements cannot be met, the utility model designs a device for precisely machining and fixing the frame parts, overcomes the defects of the existing conditions, improves the product qualification rate and the machining efficiency, and meets the demands of scientific research and production;

2. The utility model designs a bottom plate for fixing the whole device, and designs a mounting plate and an adjusting column for fixing parts, which not only can play a role in fixing, but also can lead the clamping force of a product to be small and uniform, thereby achieving the purpose of improving the qualification rate and the production efficiency;

3. The utility model adopts a mode of combining the auxiliary support of the adjusting column with the fixed support of the mounting plate and the first mounting hole, thereby being safe and reliable and not producing deformation;

4. The utility model greatly improves the product percent of pass and the production efficiency, and has higher precision stability.

Drawings

FIG. 1 is a schematic view of a first view of a frame-like part of a certain type;

FIG. 2 is a schematic view of a second view of a frame-like part of a certain type;

FIG. 3 is a schematic structural view of a frame-like part machining fixture according to the present utility model;

Fig. 4 is a schematic diagram of the frame part processing and fixing device provided by the utility model in use.

In the drawing, 1, a bottom plate, 11, a U-shaped groove, 2, a first boss, 3, a mounting plate, 31, a first mounting hole, 32, a first mounting surface, 33, a second boss, 4, an adjusting column, 41, a copper bush, 42, a supporting column, 421, a screw rod, 422, a fixing column, 5, a through hole, 10, a part, 101, a second mounting surface, 102, a third mounting surface, 103, a second mounting hole and 104, and a third mounting hole.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 3, the frame part machining and fixing device provided in this embodiment includes a base plate 1, a first boss 2, a mounting plate 3, an adjusting column 4 and a through hole 5.

The bottom plate 1 is a rectangular plate, and four corners are straight-edge chamfers. The four sides of the bottom plate 1 are respectively provided with a U-shaped groove 11 for fixing the bottom plate 1 on a workbench of an airport through T-shaped bolts.

The middle part of bottom plate 1 is connected with first boss 2 and mounting panel 3. The first boss 2 is cylindrical and is located on the upper surface of the base plate 1. The mounting plate 3 is a rectangular plate, four corners are straight-edge chamfers, and the mounting plate 3 is positioned on the upper surface of the first boss 2.

Four second bosses 33 are arranged on the upper surface of the mounting plate 3, and the four second bosses 33 are respectively arranged at four corners of the mounting plate 3. The second boss 33 is provided with a first mounting hole 31, and the first mounting hole 31 may be a threaded hole. The upper surface of the mounting plate 3 forms a first mounting surface 32, and the first mounting surface 32 requires finishing to ensure flatness.

The mounting plate 3 and the first boss 2 are provided with through holes 5 so as to reduce the weight of the fixing device.

The periphery of the bottom plate 1 is provided with height-adjustable adjusting columns 4. The adjusting column 4 comprises a copper sleeve 41 and a supporting column 42, wherein the bottom of the copper sleeve 41 is fixed on the bottom plate 1, and a threaded hole for fixing the supporting column 42 is formed in the top of the copper sleeve 41. The support column 42 comprises a screw 421 and a fixing column 422 connected to one end of the screw 421, the screw 421 is connected to the threaded hole, and the diameter of the fixing column 422 is equal to that of the copper sleeve 41, so that the attractiveness is ensured. In this embodiment, the end of the fixing post 422 away from the screw 421 forms a cone, and the upper end of the cone forms a sharp corner that can be inserted into the third mounting hole 104 (shown in fig. 4) on the part 10 to form a location. In addition, the end of the fixing post 422 away from the screw 421 may be provided as a plane to which the component 10 is attached.

As shown in fig. 4, during clamping, the fixing device is fixed at a proper position of the machine tool workbench, then the second mounting surface 101 of the workpiece is placed on the first mounting surface 32, and the height of the support column 42 is adjusted, so that the sharp angle on the fixing column 422 is inserted into the third mounting hole 104 on the workpiece. The second mounting hole 103 on the workpiece is aligned with the first mounting hole 31, and the bolt is mounted, thereby completing the fixation of the workpiece. The machine tool is started and the third mounting surface 102 on the workpiece is machined. After the completion, the bolts fixed by the workpiece and the fixing device are loosened, the workpiece is turned over by 180 degrees, the height of the supporting column 42 is adjusted, the sharp angle on the fixing column 422 is inserted into the third mounting hole 104 on the workpiece, the second mounting hole 103 on the workpiece is aligned with the first mounting hole 31, the bolts are mounted, the machine tool is started again, and the second mounting surface 101 on the workpiece is machined. Until the finished product part 10 is completed.

The machined part 10 has been inspected to meet design requirements for geometry and flatness, perpendicularity, parallelism, and surface roughness of nine high-precision mounting surfaces. The product percent of pass is improved from 15 percent to 90 percent, the production efficiency is improved by 80 percent, and the precision stability is higher.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a frame class part processing fixing device, its characterized in that, include bottom plate (1), follow first boss (2) and mounting panel (3) that bottom plate (1) upper surface upwards set gradually, be equipped with on mounting panel (3) be used for with part fixed first mounting hole (31), the upper surface of mounting panel (3) forms first installation face (32) that are used for laminating with the second installation face of part, be equipped with on bottom plate (1) be used for with fixed U-shaped groove (11) of lathe workstation, be equipped with high adjustable adjusting column (4) around bottom plate (1).

2. The frame type part machining fixing device according to claim 1, wherein the adjusting column (4) comprises a copper sleeve (41) and a supporting column (42), the bottom of the copper sleeve (41) is fixed on the bottom plate (1), and a threaded hole for fixing the supporting column (42) is formed in the top of the copper sleeve (41).

3. The frame-like part machining fixture according to claim 2, wherein the support column (42) comprises a screw (421) and a fixing column (422) connected to one end of the screw (421), the screw (421) is connected to the screw hole, and the diameter of the fixing column (422) is equal to the diameter of the copper bush (41).

4. A frame-like part machining fixture according to claim 3, characterized in that the end of the fixing post (422) remote from the screw (421) forms a cone.

5. The frame-like part machining fixture according to claim 1, characterized in that the U-shaped groove (11) is provided all around the bottom plate (1).

6. The frame-like part machining and fixing device according to claim 1, wherein the mounting plate (3) is a rectangular plate, and the first mounting holes (31) are formed around the mounting plate (3).

7. The frame-like part machining fixture according to claim 1, characterized in that through holes (5) are provided in the mounting plate (3) and the first boss (2).

8. The frame-like part machining and fixing device according to claim 1, wherein the mounting plate (3) is provided with a second boss (33), and the first mounting hole (31) is formed in the second boss (33).