CN202825072U - Planar four-bar link mechanism used for welding fixture - Google Patents
Planar four-bar link mechanism used for welding fixture Download PDFInfo
- Publication number
- CN202825072U CN202825072U CN 201220464935 CN201220464935U CN202825072U CN 202825072 U CN202825072 U CN 202825072U CN 201220464935 CN201220464935 CN 201220464935 CN 201220464935 U CN201220464935 U CN 201220464935U CN 202825072 U CN202825072 U CN 202825072U
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- China
- Prior art keywords
- piston rod
- air cylinder
- planar
- link mechanism
- pressure head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a planar four-bar link mechanism used for a welding fixture. The planar four-bar link mechanism used for the welding fixture comprises an air cylinder with a piston rod, an air cylinder fixing support, a machine frame, a connecting block and a pressure head; the air cylinder is fixed under the air cylinder fixing support through bolts; the connecting block is connected with the top of the piston rod in a threaded mode; the left side of the bottom of the pressure head is connected with the connecting block in a hinged mode; one end of the machine frame is connected with the right side of the bottom of the bottom of the pressure head in a hinged mode; and the other end of the machine frame is connected with the air cylinder fixing support in a hinged mode. According to the planar four-bar link mechanism used for the welding fixture, the air cylinder fixing support is connected with the machine frame in a hinged mode, so that in a motion process in which the piston rod stretches out and draws back, the axis of the piston rod can be perpendicular to the surface of the air cylinder fixing support all the time; the planar four-bar link mechanism effectively ensures that the piston rod stretches out and draws back smoothly, simultaneously reduces abrasion of an air cylinder seal ring, effectively ensures rhythm of production and quality of products, and simultaneously reduces cost of production to a certain degree.
Description
Technical field
The utility model relates to welding equipment, relates in particular to a kind of plane four-bar linkage for weld jig.
Background technology
At present, the instrument board framework weld jig all adopts pneumatic mode with the clamping of realization part and unclamps.In the cargo handling process of part, require cylinder piston rod stretch out with the retraction movement process in should guarantee smooth and easy without hindrance, to satisfy the loading and unloading requirement of part.
The existing cylinder clamping mechanism that is used for weld jig adopts bolt to be rigidly connected in cylinder and cylinder fixed support first, then adopts bolt to be rigidly connected as the frame of whole clamp mechanism and the standing part of anchor clamps the cylinder fixed support.
The piston rod of cylinder stretch out with the retraction process in be subject to certain radial load, cause on the one hand cylinder piston rod stuck phenomenon easily to occur when retracting stretching out, have a strong impact on the loading and unloading part; Cause on the other hand the frictional force of piston rod and sealing ring to strengthen, sealing ring accelerated wear test, and then cause cylinder leakage tester, have a strong impact on the welding quality of weld seam.
Summary of the invention
The purpose of this utility model, provide in order to address the above problem exactly a kind of simple in structure, reasonable in design, effect significantly, use the plane four-bar linkage that is used for easily weld jig.
The purpose of this utility model is achieved in that
A kind of plane four-bar linkage for weld jig of the present utility model, comprise cylinder and cylinder fixed support with piston rod, described cylinder is bolted under described cylinder is support bracket fastened, and described plane four-bar linkage also comprises frame, contiguous block and pressure head, wherein
Described contiguous block is connected with the screw top of described piston rod;
Described pressure head bottom left and described contiguous block chain connection;
One end of described frame and right side, described pressure head bottom chain connection, the other end and described cylinder fixed support chain connection.
Above-mentioned a kind of plane four-bar linkage for weld jig, wherein, described frame pass on left the standing part that bolt is fixed in described weld jig.
The utility model adopts chain connection between cylinder fixed support and frame, so that piston rod stretch out with the motion process of retracting in its axis can keep plumbness with the support bracket fastened surface of cylinder all the time, guaranteed that effectively cylinder piston rod stretches out and retraction swimmingly, also reduce simultaneously the wearing and tearing to the cylinder seal circle, also reduced to a certain extent production cost when effectively having guaranteed productive temp and product quality.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See also Fig. 1, there is shown the plane four-bar linkage that the utility model is used for weld jig.This plane four-bar linkage comprises cylinder 1, cylinder fixed support 2, pressure head 4, contiguous block 3 and the frame 5 with piston rod 11, cylinder 1 is bolted under cylinder fixed support 2, contiguous block 3 is connected with the screw top of piston rod 11, pressure head 4 bottom left and contiguous block 3 chain connections, one end of frame 5 and right side, pressure head 4 bottom chain connection, the other end and cylinder fixed support 2 chain connections, frame 5 pass on left the standing part that bolt is fixed in weld jig.
Driving link of the present utility model is piston rod 11, the clamping of stretching out and retract realizing pressure head 4 by piston rod 11 with open.Owing to adopting chain connection between cylinder fixed support 2 and the frame 5, therefore cylinder fixed support 2 can rotate around this hinge place, piston rod 11 stretch out with the motion process of retracting in its axis can be all the time keep plumbness with the surface of cylinder fixed support 2, thus, guaranteed that effectively piston rod 11 stretches out and retraction swimmingly, also reduced the wearing and tearing to the cylinder seal circle simultaneously.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (2)
1. plane four-bar linkage that is used for weld jig, comprise cylinder and cylinder fixed support with piston rod, described cylinder is bolted under described cylinder is support bracket fastened, it is characterized in that, described plane four-bar linkage also comprises frame, contiguous block and pressure head, wherein
Described contiguous block is connected with the screw top of described piston rod;
Described pressure head bottom left and described contiguous block chain connection;
One end of described frame and right side, described pressure head bottom chain connection, the other end and described cylinder fixed support chain connection.
2. a kind of plane four-bar linkage for weld jig as claimed in claim 1 is characterized in that, described frame pass on left the standing part that bolt is fixed in described weld jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464935 CN202825072U (en) | 2012-09-13 | 2012-09-13 | Planar four-bar link mechanism used for welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464935 CN202825072U (en) | 2012-09-13 | 2012-09-13 | Planar four-bar link mechanism used for welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202825072U true CN202825072U (en) | 2013-03-27 |
Family
ID=47936864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220464935 Expired - Fee Related CN202825072U (en) | 2012-09-13 | 2012-09-13 | Planar four-bar link mechanism used for welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202825072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317718A (en) * | 2013-07-03 | 2013-09-25 | 苏州凯尔博精密机械有限公司 | Round hole positioning clamp |
| CN113620051A (en) * | 2021-08-13 | 2021-11-09 | 安徽中佳自动化科技有限公司 | Constant-pressure pneumatic clamp |
-
2012
- 2012-09-13 CN CN 201220464935 patent/CN202825072U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317718A (en) * | 2013-07-03 | 2013-09-25 | 苏州凯尔博精密机械有限公司 | Round hole positioning clamp |
| CN113620051A (en) * | 2021-08-13 | 2021-11-09 | 安徽中佳自动化科技有限公司 | Constant-pressure pneumatic clamp |
| CN113620051B (en) * | 2021-08-13 | 2023-09-22 | 安徽中佳自动化科技有限公司 | Fixed-pressure pneumatic clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |