CN202411713U - Pneumatic clamping self-locking device - Google Patents
Pneumatic clamping self-locking device Download PDFInfo
- Publication number
- CN202411713U CN202411713U CN2011204991109U CN201120499110U CN202411713U CN 202411713 U CN202411713 U CN 202411713U CN 2011204991109 U CN2011204991109 U CN 2011204991109U CN 201120499110 U CN201120499110 U CN 201120499110U CN 202411713 U CN202411713 U CN 202411713U
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- CN
- China
- Prior art keywords
- connecting rod
- locking device
- threaded
- clamping
- pressing plate
- Prior art date
- 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 pneumatic clamping self-locking device, comprising a cylinder fixed below a locating seat; the locating seat is provided with a through hole; one end of a first connecting rod passes through the through hole to be connected with the cylinder through a thread; the other end of the first connecting rod is connected with one end of a second connecting rod through a threaded pin; the other end of the second connecting rod is connected with one end of a third connecting rod through the threaded pin; the other end of the third connecting rod is matched with a hole gap on the locating seat; a turnover pressure plate is threaded with tenon clamping blocks on two edges to clamp extended ends on two edges of the third connecting rod; the first connecting rod, the second connecting rod and the third connecting rod perform four-connecting rod movement; a front end of the turnover pressure plate are provided with a pressure head for clamping work pieces. The pneumatic clamping self-locking device with the special structure ensures reliability for clamping, avoids accidents caused by urgent cases, and has a four-connecting rod mechanism which is entirely designed in the locating seat simultaneously so as to prevent a clamping device from being damaged by welding splashes.
Description
Technical field
The utility model relates to the pneumatic pinch self-locking device, especially relates to a kind of assembling that is used for some special parts on the automobile.
Background technology
In the assembling process of auto parts and components, generally adopt pneumatic upset clamp mechanism; But; Common pneumatic upset clamp mechanism has open defect in some special parts assembling processes; As: in production processes such as the assembling of the spring of automotive seat, glass assembling, welding assembling, if cut-out source of the gas automatically when meeting situation such as maintenance of equipment, changing shifts, sudden power failure.For common pneumatic upset clamp mechanism, cut off source of the gas and clamp mechanism is unclamped automatically or do not have a clamping force.And thereby this phenomenon can cause the spring that is not seated to eject damage equipment or injury operator in the spring assembling process of seat; In the glass assembling process, will cause the glass damage that comes off automatically; In the welding assembling process, will unclamp the clamping part and cause distortion; Secondary welding can cause error, simultaneously, and for the welding assembly station; Because the rotational parts of common pneumatic upset clamp mechanism all is exposed to the outside, the splash of welding process is very easily burnt rotatable parts to death and is caused device damage.
The utility model content
The utility model technical problem to be solved is to the problem that exists in the prior art a kind of pneumatic pinch self-locking device to be provided, and its objective is to guarantee that clamping device still keeps clamped condition and rotational parts is increased the shell protection under the situation that cylinder is died.
The technical scheme of the utility model is that this kind pneumatic pinch self-locking device comprises the cylinder that is fixed on the positioning seat below; Positioning seat is provided with through hole, and an end of first connecting rod passes through hole and cylinder through being threaded, and the other end of first connecting rod is connected through threaded with an end of second connecting rod; The other end of second connecting rod is connected with an end of third connecting rod through threaded; Described third connecting rod is a crank connecting link, and the other end of third connecting rod is a crank axle, and crank axle cooperates with interporal lacuna on the positioning seat; And crank axle is tenon in the external part side of being on positioning seat both sides; The upset pressing plate is threaded with the square tenon clamp on both sides the both sides external part clamping of third connecting rod, and first connecting rod, second connecting rod and third connecting rod are done four link motions, and the front end of upset pressing plate is provided with the pressure head that is used for clamping work pieces.
Hole on described threaded and first connecting rod and the second connecting rod is a matched in clearance.
Be connected through screw between described upset pressing plate and the pressure head, and the position of screw according to clamp height require adjustable.
The stroke of adjustment cylinder can be adjusted the open angle of upset pressing plate.
Or the connecting rod relative length of adjustment first connecting rod and third connecting rod also can be adjusted the open angle of upset pressing plate.
This kind pneumatic pinch self-locking device with said structure has the following advantages:
1. this kind pneumatic pinch self-locking device utilizes the clamping latching point of the counter-rotating dead point principle design of quadric chain; Can not unclamp clamped workpiece even make as long as clamp clamping force source (source of the gas) clamping device that breaks of putting in place yet; Guaranteed the reliability that clamps; Avoided having avoided the spatter thing that clamping device is caused damage because the contingency that emergency case is brought designs whole quadric chain in positioning seat simultaneously.
2. this kind pneumatic pinch self-locking device adopts the principle of quadric chain, and is simple in structure, take up room for a short time, is applicable to the automation clamping of various parts.
3. this kind pneumatic pinch self-locking device is as long as change cylinder into hydraulic cylinder; Then applicable to hydraulic clamp; Simultaneously, as long as install unique being exposed between outer rotating shaft and the positioning seat additional sealing ring, this kind pneumatic pinch self-locking device is then applicable to the clamping in the corrosive liquid environment.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the plan structure sketch map of structure shown in Figure 1.
In Fig. 1-2,1: cylinder; 2: positioning seat; 3: first connecting rod; 4: second connecting rod; 5: third connecting rod; 6: the upset pressing plate; 7: pressure head; 8: square tenon clamp; 9: threaded.
The specific embodiment
Fig. 1 is the structural representation of the utility model pneumatic pinch self-locking device, and Fig. 2 is the plan structure sketch map of structure shown in Figure 1.Combine and to know by structure shown in Fig. 1-2; This kind pneumatic pinch self-locking device comprises the cylinder 1 that is fixed on positioning seat 2 belows; Positioning seat 2 is provided with through hole; One end of first connecting rod 3 passes through hole and cylinder 1 through being threaded, and the other end of first connecting rod 3 is connected through threaded 9 with an end of second connecting rod 4, and threaded 9 and first connecting rod 3 are matched in clearance with hole on the second connecting rod 4.
The other end of second connecting rod 4 is connected with an end of third connecting rod 5 through threaded 9; Third connecting rod 5 is crank connecting links, and the other end of third connecting rod 5 is crank axles, and crank axle cooperates with interporal lacuna on the positioning seat 2; And crank axle is tenon in the external part side of being on positioning seat 2 both sides; Upset pressing plate 6 is threaded with the square tenon clamp 8 on both sides the both sides external part clamping of third connecting rod 5, and first connecting rod 3, second connecting rod 4 and third connecting rod 5 are done four link motions, and the front end of upset pressing plate 6 is provided with the pressure head 7 that is used for clamping work pieces; Be connected through screw between upset pressing plate 6 and the pressure head 7, and the position of screw is adjustable according to clamping requiring highly.
The stroke of adjustment cylinder 1 can be adjusted the open angle of upset pressing plate 6; Or the connecting rod relative length of adjustment first connecting rod 3 and third connecting rod 5 can be adjusted the open angle of upset pressing plate 6.
Utilize above-mentioned pneumatic pinch self-locking device to carry out the method for clamping work pieces, comprising:
1) cylinder 1 stretches out, and drives first connecting rod 3, second connecting rod 4 and third connecting rod 5 and does four link motions, and the side's of stretching out tenon of third connecting rod 5 drives 6 upsets of upset pressing plate;
2) stretch out when putting in place when cylinder 1, upset pressing plate 6 just in time goes to level, and pressure head 7 clamps workpiece;
3) when cylinder 1 withdrawal, drive first connecting rod 3, second connecting rod 4 and third connecting rod 5 and do reverse four link motions, the side's of stretching out tenon of third connecting rod 5 drives upset pressing plate 6 and opens clamping;
4) when cylinder 1 withdrawal put in place, upset pressing plate 6 was opened and is put in place.
At clamped position, when source of the gas broke off, the reaction force of caught workpiece can force upset pressing plate 6 to be opened through pressure head 7.Because this moment, second connecting rod 4 was in vertical position with third connecting rod 5, the turning torque that transmits from upset pressing plate 6 can not make the quadric chain counter motion, therefore can't open clamping device.Under this state, only connect source of the gas and make the cylinder withdrawal, otherwise, even increase external force clamping device is opened, thereby avoided because the contingency that emergency case is brought.
Claims (5)
1. pneumatic pinch self-locking device; It is characterized in that: described pneumatic pinch self-locking device comprises the cylinder (1) that is fixed on positioning seat (2) below; Positioning seat (2) is provided with through hole, and an end of first connecting rod (3) passes through hole and cylinder (1) through being threaded, and the other end of first connecting rod (3) is connected through threaded (9) with an end of second connecting rod (4); The other end of second connecting rod (4) is connected with an end of third connecting rod (5) through threaded (9); Described third connecting rod (5) is a crank connecting link, and the other end of third connecting rod (5) is a crank axle, and crank axle cooperates with interporal lacuna on the positioning seat (2); And crank axle is at the external part side of the being tenon on positioning seat (2) both sides; Upset pressing plate (6) is threaded with the square tenon clamp (8) on both sides the both sides external part clamping of third connecting rod (5), and first connecting rod (3), second connecting rod (4) and third connecting rod (5) are done four link motions, and the front end of upset pressing plate (6) is provided with the pressure head (7) that is used for clamping work pieces.
2. a kind of pneumatic pinch self-locking device according to claim 1 is characterized in that: the hole on described threaded (9) and first connecting rod (3) and the second connecting rod (4) is a matched in clearance.
3. a kind of pneumatic pinch self-locking device according to claim 1 and 2 is characterized in that: be connected through screw between described upset pressing plate (6) and the pressure head (7), and the position of screw according to clamp height require adjustable.
4. a kind of pneumatic pinch self-locking device according to claim 3 is characterized in that: the stroke of adjustment cylinder (1) can be adjusted the open angle of upset pressing plate (6).
5. a kind of pneumatic pinch self-locking device according to claim 3 is characterized in that: the connecting rod relative length of adjustment first connecting rod (3) and third connecting rod (5) can be adjusted the open angle of upset pressing plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204991109U CN202411713U (en) | 2011-12-05 | 2011-12-05 | Pneumatic clamping self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204991109U CN202411713U (en) | 2011-12-05 | 2011-12-05 | Pneumatic clamping self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411713U true CN202411713U (en) | 2012-09-05 |
Family
ID=46736507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204991109U Expired - Fee Related CN202411713U (en) | 2011-12-05 | 2011-12-05 | Pneumatic clamping self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411713U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407422A (en) * | 2011-12-05 | 2012-04-11 | 安徽省芜湖仪器仪表研究所 | Pneumatic clamping and self-locking device and method for clamping workpieces by using same |
| CN103028883A (en) * | 2012-12-28 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Mechanism for compressing automobile side wall buckle flanging |
| CN104308437A (en) * | 2014-11-24 | 2015-01-28 | 重庆长安汽车股份有限公司 | Fixture used for welding of automobile front floor and front row seat installation crossbeam |
-
2011
- 2011-12-05 CN CN2011204991109U patent/CN202411713U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407422A (en) * | 2011-12-05 | 2012-04-11 | 安徽省芜湖仪器仪表研究所 | Pneumatic clamping and self-locking device and method for clamping workpieces by using same |
| CN103028883A (en) * | 2012-12-28 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Mechanism for compressing automobile side wall buckle flanging |
| CN104308437A (en) * | 2014-11-24 | 2015-01-28 | 重庆长安汽车股份有限公司 | Fixture used for welding of automobile front floor and front row seat installation crossbeam |
| CN104308437B (en) * | 2014-11-24 | 2015-11-18 | 重庆长安汽车股份有限公司 | The fixture of beam welding is installed for automobile front floor and front-row seats |
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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: 20120905 Termination date: 20141205 |
|
| EXPY | Termination of patent right or utility model |