CN208132313U - A kind of pneumatic self-locking device of welding fixture - Google Patents
A kind of pneumatic self-locking device of welding fixture Download PDFInfo
- Publication number
- CN208132313U CN208132313U CN201820706888.4U CN201820706888U CN208132313U CN 208132313 U CN208132313 U CN 208132313U CN 201820706888 U CN201820706888 U CN 201820706888U CN 208132313 U CN208132313 U CN 208132313U
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- CN
- China
- Prior art keywords
- pin shaft
- clamp plate
- transition plates
- rotary clamp
- connecting plate
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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.)
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Abstract
It further includes the first rotary clamp plate, the second rotary clamp plate, third rotary clamp plate and connecting plate that the utility model discloses a kind of pneumatic self-locking devices of welding fixture including clamp arm, the transition plates being vertically arranged and cylinder；One end of first rotary clamp plate is fixedly connected with clamp arm, and the other end of the first rotary clamp plate is articulated with the top of transition plates by the first pin shaft；One end of second rotary clamp plate is fixedly connected on the side of transition plates；One end of clamp arm is provided with briquetting, and the other end of clamp arm is hinged by third pin shaft and one end of third rotary clamp plate；The locating piece matched with briquetting is provided at the top of transition plates；Cylinder is articulated with the side of transition plates, and the end of cylinder piston rod is provided with connector；Connecting plate is of an L-shaped structure, and one end of the connecting plate and connector are hinged, and the other end of connecting plate is hinged by the other end of the second pin shaft and the second rotary clamp plate, and the bending part of connecting plate is hinged by the other end of the 4th pin shaft and third rotary clamp plate.
Description
Technical field
The utility model relates to field of automobile, are specifically a kind of pneumatic self-locking devices of welding fixture.
Background technique
It needs to have pressing force for a long time to prevent from welding in the bigger place of some welding deformations during automobile body welding
Deformation does not have the effect for preventing deformation to the place of welding deformation if clamp arm loses clamping force after fixture is died suddenly.
Air-actuated turnover fixture the security risks such as loosens, falls once dying and there is part in switching process.These ground
The part clamping of side just need to be made into self-locking structure, and preventing from dying suddenly in fixture switching process makes clamp arm lose clamping
Power does not work or part is made to loosen, fall.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of welding fixtures to use pneumatically certainly
Locking device is died suddenly when switching process, and pneumatic self-locking device can continue part to clamp not to be fallen in the sky, avoids safety
Hidden danger.
To achieve the above objectives, the technical scheme adopted by the utility model is that：A kind of pneumatic self-locking device of welding fixture,
It further include the first rotary clamp plate, the second rotary clamp plate, third rotating clip including clamp arm, the transition plates being vertically arranged and cylinder
Plate and connecting plate；One end of first rotary clamp plate is fixedly connected with clamp arm, and the other end of the first rotary clamp plate passes through the
One pin shaft is articulated with the top of transition plates；One end of second rotary clamp plate is fixedly connected on the side of transition plates；The folder
One end of tight arm is provided with briquetting, and the other end of clamp arm is hinged by third pin shaft and one end of third rotary clamp plate；It is described
The locating piece matched with briquetting is provided at the top of transition plates；The cylinder is articulated with the side of transition plates, and cylinder piston
The end of bar is provided with connector；The connecting plate is of an L-shaped structure, and one end of the connecting plate and the connector are hinged, connecting plate
The other end is hinged by the other end of the second pin shaft and the second rotary clamp plate, and the bending part of connecting plate passes through the 4th pin shaft and third
The other end of rotary clamp plate is hinged.
Further improvement lies in that：When clamp arm is in clamped condition, third pin shaft, the 4th pin shaft and the second pin shaft are in
Dead-centre position.
Further improvement lies in that：When clamp arm is in clamped condition, third pin shaft, the 4th pin shaft and the second pin shaft are from upper
It is arranged successively under and, and is located at same vertical line.
Further improvement lies in that：The side of the transition plates is provided with the first limited block, and the connecting plate is provided with and the
The second limited block that one limited block matches.
Further improvement lies in that：First pin shaft is located at the intersection at the top of transition plates with side.
Further improvement lies in that：The cylinder is articulated with the intersection of transition plates side and bottom.
The beneficial effects of the utility model are：
The pneumatic self-locking device of the utility model using it is pneumatic in place after, using three points of rotation point-blank with shape
At self-locking mode, come realize die after clamped position holding.It can also be according to actual needs by adjusting between the point of rotation
Distance realizes the change of clamp arm open angle, structure simple and flexible.Pneumatic self-locking device is used in turnover fixture, once
It dies suddenly when switching process, pneumatic self-locking device can continue part to clamp not to be fallen in the sky, avoids security risk.
Detailed description of the invention
Fig. 1 is schematic diagram when pneumatically self-locking device is in clamped condition in the utility model embodiment；
Fig. 2 is the pneumatic schematic diagram of self-locking device in the open state in the utility model embodiment.
Appended drawing reference：
1- transition plates；11- locating piece；The first limited block of 12-；
2- clamp arm；21- briquetting；
3- cylinder；31- connector；
The first rotary clamp plate of 4-；The first pin shaft of 41-；
The second rotary clamp plate of 5-；The second pin shaft of 51-；
6- connecting plate；The second limited block of 61-；
7- third rotary clamp plate；71- third pin shaft；The 4th pin shaft of 72-.
Specific embodiment
The embodiments of the present invention are described below in detail, the embodiment described example is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.
In the description of the present invention, it should be noted that for the noun of locality, if any term " center ", " laterally
(X) ", " longitudinal (Y) ", " vertical (Z) ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right",
The indicating positions such as "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship be based on
Orientation or positional relationship shown in the drawings is merely for convenience of narration the utility model and simplifies description, rather than instruction or dark
Showing signified device or element must have a particular orientation, be constructed and operated with particular orientation, should not be understood as limiting this reality
With novel specific protection scope.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the utility model description, " several ", " several " are meant that two or more, remove
It is non-separately to have clearly specific restriction.
Made below with reference to the attached drawing of specification by being further described to specific embodiment of the present utility model
The technical solution of the utility model and its benefits are clearer.Describing embodiment below with reference to attached drawing is to show
Example property, it is intended to explain the utility model, and should not be understood as limiting the present invention.
Referring to figure 1 and figure 2, the utility model embodiment provides a kind of welding fixture pneumatic self-locking device, including
Clamp arm 2, the transition plates 1 being vertically arranged and cylinder 3 further include the first rotary clamp plate 4, the second rotary clamp plate 5, third rotating clip
Plate 7 and connecting plate 6；
One end of first rotary clamp plate 4 is fixedly connected with clamp arm 2, and the other end of the first rotary clamp plate 4 passes through the first pin
Axis 41 is articulated with the top of transition plates 1；Specifically, the first pin shaft 41 is located at the intersection at 1 top and side of transition plates.
One end of second rotary clamp plate 5 is fixedly connected on the side of transition plates 1；
One end of clamp arm 2 is provided with briquetting 21, and the other end of clamp arm 2 passes through third pin shaft 71 and third rotary clamp plate
7 one end is hinged；
The top of transition plates 1 is provided with the locating piece 11 matched with briquetting 21；Specifically, the side of transition plates 1 is arranged
There is the first limited block 12, connecting plate 6 is provided with the second limited block 61 matched with the first limited block 12.When clamp arm 2 is mobile
When to predeterminated position, the second limited block 61 will be held in the first limited block 12, therefore, can clamped position to clamp arm 2 into
Row limit.
Cylinder 3 is articulated with the side of transition plates 1, and the end of 3 piston rod of cylinder is provided with connector 31；Specifically, cylinder 3
It is articulated with the intersection of transition plates 1 side and bottom.
Connecting plate 6 is of an L-shaped structure, and one end of the connecting plate 6 and connector 31 are hinged, and the other end of connecting plate 6 passes through second
Pin shaft 51 and the other end of the second rotary clamp plate 5 are hinged, and the bending part of connecting plate 6 passes through the 4th pin shaft 72 and third rotary clamp plate
7 other end is hinged.
Specifically, third pin shaft 71, the 4th pin shaft 72 and the second pin shaft 51 are in when clamp arm 2 is in clamped condition
Dead-centre position.At this point, third pin shaft 71, the 4th pin shaft 72 and the second pin shaft 51 are arranged successively from top to bottom, and it is located at same hang down
Line.
The working principle of the utility model is：
Clamp arm is impaction state to cylinder in the extended state, at this time third pin shaft 71, the 4th pin shaft 72 and the second pin shaft
51 3 points are in straight line, reach dead point state, and the second limited block on connecting plate againsts the first limited block in transition plates, if
Cylinder is died at this time, and the ineffective power of connecting plate, i.e., no active force acts on connector, cannot make 72 points of the 4th pin shaft around
The rotation of two 51 points of pin shafts, the 4th 72 points of pin shaft are in self-locking state, 51 3 points of third pin shaft 71, the 4th pin shaft 72 and the second pin shaft
In a vertical line, in the case where that can not rotate for 72 points of the 4th pin shaft, even if effectively acting on briquetting, third pin can not be made
71 points of axis rotate around 41 points of the first pin shaft, so clamp arm still keeps clamped condition at this time.
When clamp arm will be opened, for cylinder piston rod toward retraction, piston rod drives the connector on connecting plate mobile, makes the 4th
72 points of pin shaft rotate around 51 points of the second pin shaft, and 51 3 points of third pin shaft 71, the 4th pin shaft 72 and the second pin shaft generation angles are broken
Dead point state.Connecting plate drives third rotary clamp plate 7 around third pin shaft 71,72 points of the 4th pin shaft rotations, 7 band of third rotary clamp plate
Dynamic clamp arm, the first rotary clamp plate 4 are rotated around 41 points of the first pin shaft, and clamp arm is opened.
In the description of specification, reference term " one embodiment ", " preferably ", " example ", " specific example " or " one
The description of a little examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example, is contained in
In at least one embodiment or example of the utility model, in the present specification not necessarily for the schematic representation of above-mentioned term
Refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any one
It is combined in a suitable manner in a or multiple embodiments or example.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the utility model
It is not limited to above-mentioned specific embodiment, it is equal using the improvement of techniques well known and substitution on the basis of the utility model
The protection scope of the utility model is fallen in, should be limited by each claim.
Claims (6)
1. a kind of pneumatic self-locking device of welding fixture, including clamp arm (2), the transition plates (1) being vertically arranged and cylinder (3),
It is characterized in that：It further include the first rotary clamp plate (4), the second rotary clamp plate (5), third rotary clamp plate (7) and connecting plate (6)；
One end of first rotary clamp plate (4) is fixedly connected with clamp arm (2), and the other end of the first rotary clamp plate (4) passes through
First pin shaft (41) is articulated with the top of transition plates (1)；
One end of second rotary clamp plate (5) is fixedly connected on the side of transition plates (1)；
One end of the clamp arm (2) is provided with briquetting (21), and the other end of clamp arm (2) passes through third pin shaft (71) and third
One end of rotary clamp plate (7) is hinged；
The locating piece (11) matched with briquetting (21) is provided at the top of the transition plates (1)；
The cylinder (3) is articulated with the side of transition plates (1), and the end of cylinder (3) piston rod is provided with connector (31)；
The connecting plate (6) is of an L-shaped structure, one end of the connecting plate (6) and the connector (31) hingedly, connecting plate (6) it is another
One end is hinged by the second pin shaft (51) and the other end of the second rotary clamp plate (5), and the bending part of connecting plate (6) passes through the 4th pin
Axis (72) and the other end of third rotary clamp plate (7) are hinged.
2. pneumatic self-locking device according to claim 1, it is characterised in that：When clamp arm (2) is in clamped condition, the
Three pin shafts (71), the 4th pin shaft (72) and the second pin shaft (51) are in dead-centre position.
3. pneumatic self-locking device according to claim 2, it is characterised in that：When clamp arm (2) is in clamped condition, the
Three pin shafts (71), the 4th pin shaft (72) and the second pin shaft (51) are arranged successively from top to bottom, and are located at same vertical line.
4. pneumatic self-locking device according to claim 1, it is characterised in that：The side of the transition plates (1) is provided with
One limited block (12), the connecting plate (6) are provided with the second limited block (61) matched with the first limited block (12).
5. pneumatic self-locking device according to claim 1, it is characterised in that：First pin shaft (41) is located at transition plates
(1) intersection at top and side.
6. pneumatic self-locking device according to claim 1, it is characterised in that：The cylinder (3) is articulated with transition plates (1) side
The intersection in portion and bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820706888.4U CN208132313U (en) | 2018-05-11 | 2018-05-11 | A kind of pneumatic self-locking device of welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820706888.4U CN208132313U (en) | 2018-05-11 | 2018-05-11 | A kind of pneumatic self-locking device of welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208132313U true CN208132313U (en) | 2018-11-23 |
Family
ID=64313493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820706888.4U Expired - Fee Related CN208132313U (en) | 2018-05-11 | 2018-05-11 | A kind of pneumatic self-locking device of welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208132313U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284788A (en) * | 2019-06-27 | 2019-09-27 | 上海科得威船舶技术工程有限公司 | A kind of mechanical self-latching type retaining mechanism |
| CN110497216A (en) * | 2019-08-24 | 2019-11-26 | 大连理工大学 | Synchronization self-locking type pneumatic Self adapting fixture for annular thin wall part processing |
| CN110561472A (en) * | 2019-10-23 | 2019-12-13 | 烟台宇信科技有限公司 | Double self-locking positioning and clamping mechanism for workpiece carrying gripper |
-
2018
- 2018-05-11 CN CN201820706888.4U patent/CN208132313U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284788A (en) * | 2019-06-27 | 2019-09-27 | 上海科得威船舶技术工程有限公司 | A kind of mechanical self-latching type retaining mechanism |
| CN110497216A (en) * | 2019-08-24 | 2019-11-26 | 大连理工大学 | Synchronization self-locking type pneumatic Self adapting fixture for annular thin wall part processing |
| CN110497216B (en) * | 2019-08-24 | 2021-05-18 | 大连理工大学 | Synchronous self-locking type pneumatic self-adaptive clamp for processing annular thin-walled part |
| CN110561472A (en) * | 2019-10-23 | 2019-12-13 | 烟台宇信科技有限公司 | Double self-locking positioning and clamping mechanism for workpiece carrying gripper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20200511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |