CN201537818U - Self-adaptive hold-down mechanism - Google Patents
Self-adaptive hold-down mechanism Download PDFInfo
- Publication number
- CN201537818U CN201537818U CN2009202035739U CN200920203573U CN201537818U CN 201537818 U CN201537818 U CN 201537818U CN 2009202035739 U CN2009202035739 U CN 2009202035739U CN 200920203573 U CN200920203573 U CN 200920203573U CN 201537818 U CN201537818 U CN 201537818U
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- cylinder body
- hold
- self
- down mechanism
- piston
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Abstract
The utility model relates to a self-adaptive hold-down mechanism, in particular to an automatic hold-down mechanism on special processing equipment for designing a wall board in the aircraft manufacture industry. The self-adaptive hold-down mechanism adopts the following structure: a piston is installed in a cylinder body, a spring is installed between the piston and the cylinder body, an air inlet/outlet pipe is arranged on the cylinder body, an end cover is connected with the cylinder body, and a connecting screw is installed on the ring flange of the cylinder body. By adopting the structure, the cylinder body is fixed at the front end of the processing equipment through the connecting screw during assembly, proper pressure can be selected according to the processing condition, the position of the piston in the cylinder body can be adjusted by adjusting the air pressure, so that the hold-down force can not be too large, which leads to crush of work pieces or too small, which leads to work piece hold-down untightness. Automatic positioning and axial self-adaptive hold-down are adopted, so as to improve the quality of the processed hole. The self-adaptive hold-down mechanism has the functions of automatic positioning and automatic hold-down, thereby solving the problems of low processed hole precision and inaccurate positioning during titanium alloy board processing in the prior art.
Description
Technical field
The utility model relates to the automatic hold-down mechanism on the special processing equipment of aircraft manufacturing industry wallboard design, is specially the automatic hold-down mechanism on a kind of titanium alloy wall panel boring processing mechanical apparatus.
Background technology
Especially large aircraft and military aircraft are very strict for the pilot hole processing request in the aircraft manufacturing industry, existing process equipment does not have the self adaptation hold-down mechanism, like this, workpiece stability is relatively poor in the process, do not guarantee the quality in processed hole, process defect ware easily, increased manufacturing cost greatly.
Summary of the invention
In order to solve the problem of above-mentioned existence, the utility model is provided for the automatic hold-down mechanism on a kind of automatic drilling equipment for titanium alloy wall panel, solves fixing not firm problem in the titanium alloy plate process, improves the quality in processed hole.This mechanism not only has automatic substrate hold-down function, and can adjust the size of thrust according to machining state automatically.
The purpose of this utility model is achieved through the following technical solutions: a kind of self adaptation hold-down mechanism, it is characterized in that: piston is installed in cylinder body, between piston and the cylinder body spring is installed, on cylinder body, be provided with into/escape pipe, end cap is connected with cylinder body, on the cylinder body ring flange joint bolt is housed.
The beneficial effects of the utility model: the utility model adopts said structure, cylinder body is fixed to the process equipment front end by joint bolt during assembling, can select suitable pressure according to machining status, adjust the position of piston in cylinder body by the size of adjusting air pressure, thrust can excessively not damaged by pressure workpiece or too small and do not press tightly workpiece.Adopt location automatically, axially self adaptation compresses, and improves the quality in processed hole.The utlity model has automatic location, automatic substrate hold-down function, solved at titanium alloy sheet in the past and add low, the problem such as the location is inaccurate of machining hole precision in man-hour.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1, cylinder body; 2, piston; 3, advance/escape pipe; 4, guide pin; 5, spring; 6, joint bolt; 7, end cap.
The specific embodiment
A kind of self adaptation hold-down mechanism, piston 2 is installed in cylinder body 1, between piston 2 and the cylinder body 1 spring 5 is installed, on cylinder body 1, be provided with into/escape pipe 3, end cap 7 is connected by guide pin 4 with cylinder body 1, at cylinder body 1 central flange dish circumference joint bolt 6 is housed.
Operation principle of the present utility model:
At first, determine the size of needed thrust according to actual processing, by advance/escape pipe 3 pours gases at high pressure, promote piston 2 and move to the precalculated position, simultaneously, spring 5 compressions, make the power of generation parallel to the active force of piston 2 with gas, and make equilibrant force be slightly larger than needed pressure, the close workpiece of piston 2 front ends, then by advancing/escape pipe 3 release gases at high pressure, cylinder body 1 internal pressure is equated with ambient pressure, like this, piston 2 will move forward under the effect of spring 5 elastic force, contact and workpiece pressing.
The related automatic hold-down mechanism of the utility model is carried out available pneumatic, the machine driving of motion, and the processing that this mechanism is mainly used in the complex-curved wall opening of high accuracy compresses.Owing to have automatic location, automatic substrate hold-down function, solved at titanium alloy sheet in the past and added low, the problem such as the location is inaccurate of machining hole precision in man-hour.Adopt the utility model, can extensively be suitable for by the part of same operation principle at the different size of similar shape.
Claims (1)
1. self adaptation hold-down mechanism, it is characterized in that: piston is installed in cylinder body, between piston and the cylinder body spring is installed, be provided with on cylinder body into/escape pipe, end cap is connected with cylinder body, on the cylinder body ring flange joint bolt is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202035739U CN201537818U (en) | 2009-09-24 | 2009-09-24 | Self-adaptive hold-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202035739U CN201537818U (en) | 2009-09-24 | 2009-09-24 | Self-adaptive hold-down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201537818U true CN201537818U (en) | 2010-08-04 |
Family
ID=42589273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202035739U Expired - Lifetime CN201537818U (en) | 2009-09-24 | 2009-09-24 | Self-adaptive hold-down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201537818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452019A (en) * | 2011-12-20 | 2012-05-16 | 上海三一精机有限公司 | Positioning device for workbench |
| CN104889817A (en) * | 2015-05-18 | 2015-09-09 | 南京天河汽车零部件股份有限公司 | Multi-equal-division drilling and milling mechanism for automobile part machining |
| CN108687554A (en) * | 2018-07-24 | 2018-10-23 | 内蒙古第机械集团股份有限公司 | A kind of adaptive V-type support device |
-
2009
- 2009-09-24 CN CN2009202035739U patent/CN201537818U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452019A (en) * | 2011-12-20 | 2012-05-16 | 上海三一精机有限公司 | Positioning device for workbench |
| CN102452019B (en) * | 2011-12-20 | 2013-11-06 | 上海三一精机有限公司 | Positioning device for workbench |
| CN104889817A (en) * | 2015-05-18 | 2015-09-09 | 南京天河汽车零部件股份有限公司 | Multi-equal-division drilling and milling mechanism for automobile part machining |
| CN108687554A (en) * | 2018-07-24 | 2018-10-23 | 内蒙古第机械集团股份有限公司 | A kind of adaptive V-type support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |