CN216370536U

CN216370536U - Special clamp for processing inner hole threads of sheet-shaped special-shaped piece

Info

Publication number: CN216370536U
Application number: CN202122022246.7U
Authority: CN
Inventors: 董琰; 程天南; 张豹
Original assignee: Suzhou Zhouyang Precision Machinery Technology Co ltd
Current assignee: Suzhou Zhouyang Precision Machinery Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-04-26
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a special fixture for processing inner hole threads of a sheet special-shaped piece, which comprises a first base, a second base, a third base, a first positioning sample plate, a second positioning sample plate, a third positioning sample plate, a first groove, a second groove and a third groove, wherein the first base is provided with a first positioning hole; first, second and third base with first, second and third location model are connected, first base, second base and third base can form the triangle location to slice profile piece, just the front end of first, second, third location model has been makeed into first recess, second recess and third recess are installed respectively on first base, second base and third base, just the third recess is the arc recess, surround the back and constitute jointly and be used for pressing from both sides tightly the die cavity of piece dress profile piece. The utility model has the advantages that: the clamping is rapid, the working efficiency is high, the labor force of workers is reduced, and the machining error caused by the overall dimension factor is reduced.

Description

Special clamp for processing inner hole threads of sheet-shaped special-shaped piece

Technical Field

The utility model belongs to the field of machining of numerical control technology, and particularly relates to a threaded clamp for a circular hole part of a special-shaped piece.

Background

At present, in the machining field, the thread machining technology of hole type aluminum parts is common, as shown in fig. 2, the common aluminum part machining technology is to fix the aluminum part on a main shaft fixture, the part is installed together with a cavity cut out in a positioning sample plate, and then a pressing plate is used for fixing.

Because the shape of the workpiece is an aluminum profile, the clamping force needs to be well controlled, otherwise, the aluminum profile is easy to deform, the size has errors due to errors,

the method can perfectly meet the requirements of the machining size and form and position tolerance of the aluminum piece, only the workpiece is pressed by a plurality of pressing plates, and the working procedure is complex and wastes time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide the special clamp for processing the inner hole threads of the sheet-shaped special-shaped piece, which can save clamping time and reduce labor force of workers to the maximum extent.

In order to achieve the technical effects, the utility model is realized by the following technical scheme:

a special clamp for processing inner hole threads of a sheet special-shaped piece comprises a first base, a second base and a third base, wherein the first base, the second base and the third base are respectively detachably arranged on a pneumatic three-jaw of a numerical control lathe; the first and second bases are located above a sheet profile, the third base is located below the sheet profile; the first, second and third bases may triangulate the sheet-like profile. The pneumatic clamping device controlled by the pneumatic three-jaw is composed of two buttons, namely a loosening button and a tightening button, and the clamping and loosening of the pneumatic three-jaw are controlled through the buttons. The pressure of the pneumatic three-jaw is adjusted to be not deformed after the workpiece is machined, and sufficient clamping force is provided in the machining process to prevent the part from flying out.

Furthermore, a first positioning sample plate is fixed on the first base, a second positioning sample plate is fixed on the second base, a third positioning sample plate is fixed on the third base, a first groove, a second groove and a third groove are correspondingly formed in the front end edges of the first positioning sample plate, the second positioning sample plate and the third positioning sample plate, and the first groove, the second groove and the third groove jointly form a cavity for clamping the sheet-shaped special-shaped piece after the first groove, the second groove and the third groove are encircled.

Further, the sheet-like profile includes a first protrusion and a second protrusion, which are respectively fitted with the corresponding first groove and the second groove, leaving a gap.

Furthermore, the grooves on the first positioning sample plate, the second positioning sample plate and the third positioning sample plate are in the shapes of a first groove, a second groove and a third groove, and all have positioning functions, so that triangular positioning is realized, and the positioning sample plate cannot move after being clamped, so that a limiting function is realized.

The utility model has the beneficial effects that:

1. the utility model provides a clamp which is rapid in clamping, high in labor efficiency and capable of reducing labor force of an operator in operation from practical application.

2. The special fixture for processing the inner hole thread of the sheet special-shaped part is manufactured by combining the prior art, the cavity is cut by the linear cutting technology, the sheet special-shaped part is accommodated, gaps are reserved between the first groove and the second groove and the special-shaped blank part, the special-shaped blank part is convenient to clamp and take, meanwhile, the machining error caused by the appearance size error can be eliminated through the pneumatic three-jaw clamping device in order to avoid the phenomenon that the machining error is caused by the gaps existing in the transmission connection between the machine tool main shaft and the pneumatic three-jaw chuck.

3. The special fixture for processing the inner hole threads of the flaky special-shaped piece has the advantages that the overall structure of the fixture is reasonable, the occupied space is small, and the precision effect is good.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is made with reference to the embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

fig. 1 is a schematic view of the structure of a sheet-like profile.

Fig. 2 shows a prior art fixing mechanism for a sheet-like profile.

Fig. 3 is a perspective view of the special fixture for processing the thread of the inner hole of the sheet-shaped special-shaped piece according to the utility model.

The reference numbers in the figures illustrate: 1. a first positioning template; 2. a second positioning template; 3. a third positioning sample plate 4 and a second base; 5. fixing screw holes; 6. A first groove; 7. a second groove; 8. a third groove; 9. a first base; 10. a third base; 11. a sheet-like shaped piece; 12. a first protrusion; 13. a second protrusion.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The description set forth herein is intended to provide a further understanding of the utility model and forms a part of this application and is intended to be an exemplification of the utility model and is not intended to limit the utility model to the particular embodiments illustrated.

A special clamp for processing inner hole threads of a sheet-shaped special-shaped piece comprises a first base 9, a second base 4 and a third base 10, wherein the first base 9, the second base 4 and the third base 10 are respectively detachably arranged on a pneumatic three-jaw of a numerical control lathe; the first 9 and second 4 bases are located above the sheet-like profile 11, the third base 10 is located below the sheet-like profile 11; the first 9, second 4 and third 10 bases can triangulate the sheet-like profile 11.

Further, the first base 9, the second base 4 and the third base 10 are provided with through holes for passing the fixing screws 5.

Further, a first positioning sample plate 1 is fixed on the first base 9, a second positioning sample plate 2 is fixed on the second base 4, a third positioning sample plate 3 is fixed on the third base 10, a first groove 6, a second groove 7 and a third groove 8 are correspondingly arranged at the front ends of the first positioning sample plate 1, the second positioning sample plate 2 and the third positioning sample plate 3, and the first groove 6, the second groove 7 and the third groove 8 form a cavity for clamping the sheet-shaped profiled part 11 together after the first positioning sample plate 1, the second positioning sample plate 2 and the third positioning sample plate 3 surround.

Further, before the first positioning sample plate 1, the second positioning sample plate 2 and the third positioning sample plate 3 are machined, holes of the three sample plates are turned by a boring cutter, so that coaxiality of the holes of the first positioning sample plate 1, the second positioning sample plate 2 and the third positioning sample plate 3 and a numerical control machine tool is guaranteed.

Further, the first base 9, the second base 4 and the third base 10 are connected with the first positioning template 1, the second positioning template 2 and the third positioning template 3 through the fixing screw holes 5 and the screws.

Preferably, the third groove 8 is an arc-shaped groove.

Further, the sheet-like profile 11 comprises a first protrusion 12 and a second protrusion 13, the first protrusion 12 and the second protrusion 13 respectively cooperate with the corresponding first groove 6 and the second groove 7, and the distance is greater than or equal to 1 mm.

Furthermore, the cavity shapes on the first positioning sample plate 1, the second positioning sample plate 2 and the third positioning sample plate 3 are provided with a first groove 6, a second groove 7 and a third groove 8, so that the positioning sample plates cannot move and have a limiting function.

The working principle of the embodiment is as follows:

firstly, mounting a pneumatic three-jaw on a chuck on a spindle of a numerical control machine tool, connecting a first base 9, a second base 4 and a third base 10 with the pneumatic three-jaw through screws for fixing screw holes, mounting a cutter on a cutter holder, turning a hole of a cavity to ensure coaxiality, mounting a special-shaped blank section bar to a first cut groove 6, a second cut groove 7 and a third cut groove 8 to enable the special-shaped blank section bar to be limited and not to move, pressing a pneumatic three-jaw clamping button of the machine tool to clamp the shape of a flaky special-shaped piece 11, testing whether the pressure of the special-shaped piece is normal or not, preventing the part from flying out or preventing the part from being damaged due to overlarge pressure, and processing the part after mounting and debugging.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a to slice profile shape piece hole screw thread processing special fixture which characterized in that: the numerical control lathe comprises a first base (9), a second base (4) and a third base (10), wherein the first base, the second base and the third base (9, 4 and 10) are respectively detachably arranged on a pneumatic three-jaw of the numerical control lathe; the first seat (9) and the second seat (4) are located above a sheet-like profile (11), the third seat (10) is located below the sheet-like profile (11); the first, second and third seats (9, 4, 10) can triangulate the sheet-like profile (11).

2. The special fixture for processing the threads of the inner hole of the sheet-shaped special piece as claimed in claim 1, wherein a first positioning template (1) is fixed on the first base (9), a second positioning template (2) is fixed on the second base (4), a third positioning template (3) is fixed on the third base (10), a first groove (6), a second groove (7) and a third groove (8) are correspondingly arranged at the front end edges of the first positioning template (1), the second positioning template (2) and the third positioning template (3), and the first, the second and the third grooves (6, 7, 8) jointly form a cavity for clamping the sheet-shaped special piece (11) after the first, the second and the third positioning templates (1, 2, 3) are encircled.

3. The special clamp for processing the thread of the inner hole of the sheet-shaped profiled piece according to claim 2, wherein the third groove (8) is an arc-shaped groove.

4. A special fixture for screw thread machining of an inner hole of a sheet-like profile according to claim 2, wherein the sheet-like profile (11) comprises a first protrusion (12) and a second protrusion (13), and the first protrusion (12) and the second protrusion (13) are respectively matched with the corresponding first groove and the second groove (6, 7) with a gap left.

5. A special clamp for machining threads of an inner hole of a sheet-shaped profiled piece according to claim 4, wherein the gap is greater than or equal to 1 mm.