CN204639467U - Be elevated single cylinder locking mechanism - Google Patents
Be elevated single cylinder locking mechanism Download PDFInfo
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- CN204639467U CN204639467U CN201520284145.9U CN201520284145U CN204639467U CN 204639467 U CN204639467 U CN 204639467U CN 201520284145 U CN201520284145 U CN 201520284145U CN 204639467 U CN204639467 U CN 204639467U
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- connecting rod
- axle
- pedestal
- locking mechanism
- slider unit
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Abstract
The utility model relates to the single cylinder locking mechanism of a kind of lifting, it is characterized in that: bottom telescoping cylinder, axle is connected to pedestal front end, limited block is fixedly connected on the rear end of pedestal, there is A connecting rod in limited block front, the lower end axle of A connecting rod is connected on pedestal, and the upper end of A connecting rod is connected with telescoping cylinder top and B connecting rod lower end axle, and the upper end of B connecting rod is connected with ball slider unit bottom axle, there is alignment pin the side at ball slider unit top, and A connecting rod, B connecting rod are isometric.It can realize stable self-locking, again saves cost.
Description
Technical field
The utility model relates to the single cylinder locking mechanism of a kind of lifting, and belong to automobile body-in-white welding and manufacture field, particularly one is installed on welding and assembling production lines, for carrying out single cylinder locking mechanism of fixture lifting.
Background technology
On welding and assembling production lines, based on the needs positioned vehicle body product, extensively adopt the weld jig with alignment pin.When fixture works, need pin-and-hole alignment pin being stretched into vehicle body product (hereinafter referred to as vehicle body), and when carrying out carrying between station to vehicle body, need alignment pin is departed from it up and down, to ensure to interfere moving horizontally of product.The method for this reason adopted generally has two kinds: one is that fixture is motionless, and vehicle body moves up and down; Another kind is that vehicle body is motionless, and fixture moves up and down.The mechanism introduced herein is based on second method.For making fixture move up and down, adopt the mode directly driving alignment pin to move up and down by cylinder, to realize alignment pin to the location of vehicle body and disengaging at present more.Being clamp working-station when cylinder stretches out, because now alignment pin will share the weight of vehicle body, is also simultaneously the needs ensureing positioning precision, must can self-locking when cylinder reaches precalculated position.This type of cylinder with self-locking mechanism adopts imported product usually, expensive, than the cylinder price high nearly 1,000 yuan not with self-locking.And on whole piece welding line, alignment pin is tens of at least, hundreds of at most, if all adopt self-locking cylinder that purchase cost can be made greatly to increase.
Summary of the invention
The purpose of this utility model is to provide the single cylinder locking mechanism of a kind of lifting, and it can realize stable self-locking, again saves cost.
The technical solution of the utility model is achieved in that the single cylinder locking mechanism of lifting, it is characterized in that: bottom telescoping cylinder, axle is connected to pedestal front end, limited block is fixedly connected on the rear end of pedestal, there is A connecting rod in limited block front, the lower end axle of A connecting rod is connected on pedestal, and the upper end of A connecting rod is connected with telescoping cylinder top and B connecting rod lower end axle, and the upper end of B connecting rod is connected with ball slider unit bottom axle, there is alignment pin the side at ball slider unit top, and A connecting rod, B connecting rod are isometric.
Good effect of the present utility model is that it eliminates the self-locking mechanism in cylinder compared with traditional mechanism, replaces two connecting rods, substantial saving in manufacturing cost.And structure is simple, reliability is strong.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is structure stress sketch of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further: as shown in Figure 1, be elevated single cylinder locking mechanism, it is characterized in that: bottom telescoping cylinder 1, axle is connected to pedestal 7 front end, limited block 5 is fixedly connected on the rear end of pedestal 7, there is A connecting rod 2 in limited block 5 front, the lower end axle of A connecting rod 2 is connected on pedestal 7, the upper end of A connecting rod 2 is connected with telescoping cylinder 1 top and B connecting rod 3 lower end axle, the upper end of B connecting rod 3 is connected with axle bottom ball slider unit 4, the side at ball slider unit 4 top has alignment pin 6, A connecting rod 2, B connecting rod 3 isometric.
Ball slider unit 4 can only do rectilinear motion along guide rail, the stiff end conllinear of guide rail and A connecting rod 2, A connecting rod 2, B connecting rod 3 are isometric, respective and ball slider unit 4 or pedestal 7 the two pin joint lines of such A connecting rod 2, B connecting rod 3 form isosceles triangle, and leg-of-mutton waist length is fixed value (equaling length of connecting rod).When telescoping cylinder 1 stretches out, between A connecting rod 2, B connecting rod 3, angle becomes large, waist is long constant, respective and ball slider unit 4 or pedestal 7 the two pin joint wire lengths of A connecting rod 2, B connecting rod 3 increase, because this line is all the time perpendicular to horizontal plane, and A connecting rod 2 is fixing with the pin joint of pedestal 7, ball slider unit 4 will rise.
Fig. 2 is the stressed sketch of mechanism, the gravity mg of vehicle body product, produces two points of active forces, and F1 is applied to along connecting rod II and is finally applied to pedestal 7 by telescoping cylinder 1, A connecting rod 2, F2 is then vertically applied to guide rail, and the relation between each power is such as formula shown in (1), formula (2);
........(1)
..........(2)
When angle between A connecting rod 2, B connecting rod 3 increases to 180 °, ball slider unit 4 rises to peak, b=0, two connecting rod conllinear, and with vehicle body product Action of Gravity Field line parallel.Now,
,
; Gravity due to vehicle body is applied to telescoping cylinder 1 and A connecting rod 2 along B connecting rod 3, now
component is in the horizontal direction zero, and telescoping cylinder 1 does not stress.
Gravity, via B connecting rod 3, A connecting rod 2, is applied directly to pedestal 7.If the stroke end of telescoping cylinder 1 to be set in the position of b=0, to limit A connecting rod 2 by the limited block 5 of A connecting rod 2 opposite side simultaneously and be rotated further, can self-locking be realized.When needs alignment pin 6 declines, telescoping cylinder 1 shrinks, and the angle of A connecting rod 2, B connecting rod 3 diminishes, and ball slider unit 4 and alignment pin 6 decline.
Claims (1)
1. be elevated single cylinder locking mechanism, it is characterized in that: bottom telescoping cylinder, axle is connected to pedestal front end, limited block is fixedly connected on the rear end of pedestal, there is A connecting rod in limited block front, the lower end axle of A connecting rod is connected on pedestal, and the upper end of A connecting rod is connected with telescoping cylinder top and B connecting rod lower end axle, and the upper end of B connecting rod is connected with ball slider unit bottom axle, there is alignment pin the side at ball slider unit top, and A connecting rod, B connecting rod are isometric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284145.9U CN204639467U (en) | 2015-05-06 | 2015-05-06 | Be elevated single cylinder locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284145.9U CN204639467U (en) | 2015-05-06 | 2015-05-06 | Be elevated single cylinder locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204639467U true CN204639467U (en) | 2015-09-16 |
Family
ID=54092251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520284145.9U Active CN204639467U (en) | 2015-05-06 | 2015-05-06 | Be elevated single cylinder locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204639467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672590A (en) * | 2018-07-18 | 2018-10-19 | 中山精达特克机械有限公司 | A kind of self-locking driving device and the bending mechanism with the device |
| CN113523698A (en) * | 2021-06-23 | 2021-10-22 | 中国第一汽车股份有限公司 | Manual rotary positioning device and positioning system |
-
2015
- 2015-05-06 CN CN201520284145.9U patent/CN204639467U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672590A (en) * | 2018-07-18 | 2018-10-19 | 中山精达特克机械有限公司 | A kind of self-locking driving device and the bending mechanism with the device |
| CN108672590B (en) * | 2018-07-18 | 2024-06-07 | 中山精达特克机械有限公司 | Self-locking driving device and bending mechanism with same |
| CN113523698A (en) * | 2021-06-23 | 2021-10-22 | 中国第一汽车股份有限公司 | Manual rotary positioning device and positioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170417 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Co-patentee after: FAW Mould Manufacturing Co., Ltd. Patentee after: China FAW Group Corporation Address before: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Patentee before: China FAW Group Corporation |