CN105415050A - Turning and clamping device of disc ring type parts - Google Patents

Description

Turning and clamping device for disk ring parts

technical field

The invention belongs to the technical field of tooling design, and in particular relates to a turning and clamping device for disk ring parts.

Background technique

Parts of helicopter rings have circumferential holes with strict mutual angle requirements, and each hole has features such as high-precision hole matching surfaces, threads, and shoulders. At present, assembly and combination fixtures are mainly used for processing on lathes. Disadvantages of using combined fixtures: Each batch of production requires assembly of fixtures, which cannot guarantee the dimensional consistency of each part, poor assembly interchangeability, and unstable parts quality; combined fixtures are heavy and occupy a large space, and labor-intensive handling, installation and disassembly of workers is high .

Contents of the invention

The technical problem to be solved by the present invention is to provide a quick positioning device for disk ring parts which is easy to clamp, fast and accurate in positioning, and stable and reliable in quality.

The technical solution of the present invention is: a turning and clamping device for disc ring parts, the clamping device includes a clamp main body, a positioning plate, a positioning pin, a long screw and a compression nut, the left end of the clamp main body is a clamping end, which can be connected with a lathe The chuck is clamped and connected, and the right end is the opposite upper and lower clamping arms, and the upper clamping arm includes a stop boss; the positioning plate is a circular part with a positioning hole at one end, and a circular part with a pin hole at the other end. Extension part; the middle part of the long screw is a positioning polished rod; the compression nut has an anti-rotation plane on one side; the long screw passes through the positioning hole of the positioning plate, the positioning hole of the part is connected with the compression nut, and the positioning pin passes through The pin hole of the positioning plate is connected with the positioning groove of the part.

The mandrel is inserted into a peripheral initial hole of the part, and the mandrel is tightened by using the top of the tailstock to ensure that the axis of the hole coincides with the main axis of the lathe.

The invention has the advantages of fast and accurate positioning and clamping of parts, light fixture, easy loading, unloading and handling, obviously improved processing efficiency and stable quality of parts.

Description of drawings

Fig. 1 is a schematic diagram of the turning and clamping device for disc ring parts of the present invention;

Fig. 2 is the front view of positioning plate of the present invention;

Fig. 3 is the front view of long screw rod of the present invention;

Fig. 4 is a front view of the compression nut of the present invention.

detailed description

The turning and clamping device for disk and ring parts of the present invention is composed of a clamp body 1, a positioning plate 2, a positioning pin 4, a long screw 5, a compression nut 6 and a mandrel 7, and its use steps are as follows:

Step 1. Clamp the fixture body 1 on the three-jaw chuck of the lathe;

Step 2, install the positioning plate 2 on the fixture main body 1;

Step 3, install the part 3 on the positioning plate 2, the positioning pin 4 on the positioning plate 2 is closely matched with the long end fork of the part 3, so that the part 3 can rotate synchronously with the positioning plate 2;

Step 4. Install the long screw rod 5 and the pressure plate nut 6, and tighten them slightly;

Step 5. Insert the mandrel 7 into the initial hole of the circumferential hole, use the top of the tailstock to tighten the mandrel 7 to ensure that the axis of the hole coincides with the main axis of the lathe, and tighten the long screw 5 to compress the part 3;

Step 6. Drag the tailstock to a safe position, remove the mandrel 7, and process the circumferential hole;

Step 7. Slightly loosen the long screw rod 5 until the positioning plate 2 can be rotated by hand. Repeat steps 5 and 6 to process the circumferential holes in place.

Claims (2)

1. A clamping device for disc ring parts turning, characterized in that: the clamping device comprises a clamp body (1), a positioning plate (2), a positioning pin (4), a long screw rod (5) and a compression nut ( 6), the left end of the fixture main body (1) is the clamping end, which can be clamped and connected with the chuck of the lathe, and the right end is the opposite upper and lower clamping arms, and the upper clamping arm includes a stop boss; the positioning plate (2 ) is a circular part with a positioning hole at one end, and an extension part with a pin hole at the other end; the middle part of the long screw (5) is a positioning polished rod; the compression nut (6) has an anti-rotation plane; the long screw rod (5) passes through the positioning hole of the positioning plate (2), the positioning hole of the part (3) is connected with the compression nut (6), and the positioning pin (4) passes through the pin hole of the positioning plate (2) and Locating slot connection for part (3). 2. The clamping device according to claim 1, characterized in that: the mandrel (7) is inserted into a circumferential initial hole of the part (3), and the mandrel (7) is tightened by the top of the tailstock to ensure that the axis of the hole is in line with the lathe The main axes coincide.