CN105252196A - Double-cylinder hold-down device - Google Patents
Double-cylinder hold-down device Download PDFInfo
- Publication number
- CN105252196A CN105252196A CN201510811046.6A CN201510811046A CN105252196A CN 105252196 A CN105252196 A CN 105252196A CN 201510811046 A CN201510811046 A CN 201510811046A CN 105252196 A CN105252196 A CN 105252196A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston rod
- alignment pin
- guide pillar
- guide
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Abstract
The invention discloses a double-cylinder hold-down device. A piston rod of a first cylinder is connected with a lower end of a guide column; a positioning pin is mounted at a top end of the guide column; a second cylinder is mounted on a guiding barrel, a piston rod of the second cylinder is connected with one end of a pressing arm, and a pressure head is fixed at the other end of the pressing arm; a stepped hole is formed in the center of the positioning pin and a countersunk long bolt is arranged in the stepped hole in a penetrating manner; mounting holes are formed at four corners of the positioning ring, and a lug is mounted between every two adjacent mounting holes in a circumferential direction; a connector is arranged between the guide column and the piston rod of the first cylinder; a head lug boss of the connector is clamped in a T-shaped through groove formed in the lower end of the guide column, and a lower end of the connector is in threaded connection with the piston rod of the first cylinder. The double-cylinder hold-down device is reasonable in design, simple and compact in structure, easy to assemble and low in cost; the device is not only convenient to operate and control and flexible and reliable in running, but also capable of realizing positioning accuracy and stability of a liner tube, thereby being conductive to the welding mounting of the liner tube; as a result, the quality of welding is guaranteed and the requirement of consistent production can be met.
Description
Technical field
The invention belongs to technical field of tooling clamps, specifically, particularly a kind of two air-cylinder compressing device.
Background technology
Automobile hind axle assembly is made up of crossbeam, trailing arm, spring base, bushing pipe, parking brake cable support, oil tube bracket and damper mount pad etc., be symmetrically welded trailing arm at the two ends of crossbeam, each trailing arm weld successively bushing pipe, parking brake cable support, damper mount pad and oil tube bracket.When welding, operation break-down is needed to position crossbeam, trailing arm, spring base, bushing pipe etc. respectively by multiple frock.Existing bushing pipe positioning tool complex structure, take up room large, cost is high, contraposition difficulty, and the steadiness of location is poor, makes welding quality be difficult to ensure, does not reach the requirement of uniform production.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of structure simple, reliable two air-cylinder compressing device.
Technical scheme of the present invention is as follows: a kind of two air-cylinder compressing device, it is characterized in that: fixed guide cylinder on the cylinder body of the first cylinder, guide cylinder is steel structure, the piston rod of the first cylinder stretches in guide cylinder straight up, and be connected with the lower end of guide pillar, install alignment pin on the top of described guide pillar, alignment pin can stretch out outside guide cylinder, be arranged with locating ring at the outer of described alignment pin, this locating ring is installed on the end face of guide cylinder; Described guide cylinder is equipped with the second cylinder, the axial line of the second cylinder parallels with the axial line of the first cylinder, and the piston rod of described second cylinder stretches out straight up, and is connected with one end of pressure arm, fix pressure head in the bottom surface of the pressure arm other end, this pressure head is positioned at directly over alignment pin;
Conical surface transition is passed through between the end face of described alignment pin and all sides, the bottom of this alignment pin is formed with short column, short column embeds in the adaptive groove offered guide pillar upper end, up big and down small two-part stepped hole is offered at the center of described alignment pin, countersunk head stay bolt is worn in this stepped hole, the lower end of described countersunk head stay bolt is stretched in guide pillar, alignment pin and guide pillar is fixed together;
The outline of described locating ring be four angles be rounded down square, installing hole is offered at four angles place of locating ring, sunk screw is worn in each installing hole, locating ring and guide cylinder are fixed together, projection is provided with between circumference two adjacent installing holes, projection is circumferentially uniformly distributed, and the end face of the bottom of projection and locating ring is connected as a single entity;
"T"-shaped groove is offered in the lower end of described guide pillar, and joint is provided with between guide pillar and the piston rod of the first cylinder, described joint is bolt arrangement, the head boss of this joint snaps in the "T"-shaped groove of guide pillar lower end, both snap-fit engagement, the lower end of joint is connected with the piston rod thread of the first cylinder, and by nut check, nut is close to the end face of the first cylinder piston rod.
Adopt above technical scheme, when the automobile hind axle assembly bushing pipe of location, first bushing pipe is placed on locating ring, then the piston rod of the first cylinder is driven to protrude upward, guide pillar is moved upward together with alignment pin, alignment pin stretches in bushing pipe and locates, bushing pipe planar can not be produced rock, then the piston rod action of the second cylinder is driven, the piston rod of the second cylinder is made to drive pressure arm to move downward, until pressure head compressing is at the end face of bushing pipe, pressure head and locating ring match, can realize compressing the clamping of bushing pipe, again in conjunction with the alignment pin in bushing pipe, the steadiness that bushing pipe is located can be guaranteed, welding quality between such bushing pipe and trailing arm is secure, the requirement of uniform production can be met.
The present invention adopts two cylinders providing power, and parts are few, and overall structure is simple, compact, and be easy to assembling, compact, take up room little, cost is low, and manipulation is convenient.
By conical surface transition between alignment pin end face and all sides, this conical surface plays guiding, makes alignment pin enter bushing pipe easier; Alignment pin lower end is inlayed with guide pillar and is coordinated, and the countersunk head stay bolt worn by center is fastening, and the fastness connected on the one hand is good, and alignment pin can not loosen, and on the other hand, the head of countersunk head stay bolt does not expose, and can not produce interfere with pressure head.
Locating ring passes through four circumferentially equally distributed projection support bushing pipes, and the strong point is evenly distributed, and coordinates the good reliability of clamping position bushing pipe with pressure head.Locating ring adopts four sunk screws to be connected with guide cylinder, and it is firm not only to connect, and is easy to dismounting, and the head of sunk screw does not expose, and can not cause adverse effect to support bushing pipe.
Because the restriction of guide pillar by guide cylinder can only be moved at above-below direction, therefore joint is adopted to be connected between guide pillar and the piston rod of the first cylinder, make upper end and the guide pillar snap-fit engagement of joint, the lower end of joint and the piston rod of the first cylinder pass through screw threads for fastening, this greatly simplifies the mounting structure between guide pillar and the first cylinder piston rod, disassembling operations is very convenient, quick.
In order to reduce wearing and tearing as much as possible, increase the service life, be embedded with wear-resisting bushing pipe in the inside of described guide cylinder, described wear-resisting bushing pipe and guide pillar are slidably matched.
In order to simplify structure, be convenient to processing and fabricating and assembling, described pressure head is pane structure, and this pressure head is connected with pressure arm by row's bolt.
Beneficial effect: the present invention is reasonable in design, structure is simple, compact, and be easy to assembling, cost is low, not only manipulate conveniently, go slick, reliably, and accuracy and the steadiness of bushing pipe location can be realized, be conducive to bushing pipe welded and installed, welding quality is secure, can meet the requirement of uniform production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of guide pillar.
Fig. 4 is the structural representation of locating ring.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1 and Figure 2, the cylinder body of the first cylinder 1 arranges guide cylinder 2, guide cylinder 2 is positioned at the top of the first cylinder 1 cylinder body, and the cylinder body of guide cylinder 2 and the first cylinder 1 is fixed together.Guide cylinder 2 is steel structure, and the profile of this guide cylinder 2 is square, and namely the outline of guide cylinder 2 cross section is square.The piston rod of the first cylinder 1 stretches in guide cylinder 2 straight up, and above the first cylinder 1 piston rod, arrange guide pillar 3, guide pillar 3 is positioned at guide cylinder 2, and guide pillar 3 is slidably matched with the wear-resisting bushing pipe 12 of the inner setting-in of guide cylinder 2.
As shown in Figure 2 and Figure 3, offer "T"-shaped groove 3a in the lower end of guide pillar 3, and be provided with joint 9 between guide pillar 3 and the piston rod of the first cylinder 1.Joint 9 is bolt arrangement, and the head boss of this joint 9 snaps in the "T"-shaped groove 3a of guide pillar 3 lower end, both snap-fit engagement.The lower end of joint 9 is stretched in the piston rod of the first cylinder 1, and joint 9 is connected with the piston rod thread of the first cylinder 1, is locked by nut 10, and nut 10 is set on joint 9, and nut 10 is close to the end face of the first cylinder 1 piston rod.
As shown in Figure 1 and Figure 2, install alignment pin 4 on the top of guide pillar 3, by conical surface transition between the end face of alignment pin 4 and all sides, the bottom of this alignment pin 4 is formed with short column 4a, and short column 4a embeds in the adaptive groove offered guide pillar 3 upper end.Up big and down small two-part stepped hole is offered at the center of alignment pin 4, countersunk head stay bolt is worn in this stepped hole, the lower end of countersunk head stay bolt is stretched in guide pillar 3, alignment pin 4 and guide pillar 3 is fixed together, and alignment pin 4 can protrude upward outside guide cylinder 2 under the drive of guide pillar 3.
As shown in Figure 1, Figure 2, Figure 4 shows, be arranged with locating ring 5 at the outer of alignment pin 4, the interior edge of this locating ring 5 is circular, the outline of locating ring 5 be four angles be rounded down square.Offer installing hole 5a at four angles place of locating ring 5, this installing hole 5a is up big and down small two-part stepped hole, wears sunk screw in each installing hole 5a, and locating ring 5 is fixed together by four sunk screws and guide cylinder 2.Between circumference two adjacent installing hole 5a, be provided with projection 5b, projection 5b is circumferentially uniformly distributed, and the end face of the bottom of projection 5b and locating ring 5 is connected as a single entity.
As shown in Figure 1, the axial line arranging the second cylinder 6, second cylinder 6 on the side of guide cylinder 2 parallels with the axial line of the first cylinder 1.Between guide cylinder 2 and the second cylinder 6, be provided with connecting plate 11, connecting plate 11 is shaping by steel plate punched, has the first plate body and second plate body at obtuse angle each other.Fitting in first plate body of connecting plate 11 and a side of guide cylinder 2, is bolted between the first plate body and guide cylinder 2.The plane of orientation that second plate body of connecting plate 11 and the second cylinder 6 cylinder body are arranged is fitted, and is also bolted between the second plate body and the second cylinder 6.The piston rod of the second cylinder 6 stretches out straight up, and is connected with one end of pressure arm 7, fixes pressure head 8 in the bottom surface of pressure arm 7 other end, and this pressure head 8 is positioned at directly over alignment pin 4.Pressure head 8 is preferably pane structure, and this pressure head 8 is connected with pressure arm 7 by row's bolt.
Operation principle of the present invention is as follows:
When the automobile hind axle assembly bushing pipe of location, first bushing pipe is placed on locating ring 5, bushing pipe is supported by the projection 5b of four on locating ring 5, then the piston rod of the first cylinder 1 is driven to protrude upward, guide pillar 3 is moved upward together with alignment pin 4, alignment pin 4 stretches in bushing pipe locates, bushing pipe planar can not be produced rock, then the piston rod action of the second cylinder 6 is driven, the piston rod of the second cylinder 6 is made to drive pressure arm 7 to move downward, until pressure head 8 oppresses the end face at bushing pipe, pressure head 8 and locating ring 5 match, can realize compressing the clamping of bushing pipe, again in conjunction with the alignment pin 4 in bushing pipe, the accuracy that bushing pipe is located and steadiness can be guaranteed.
Claims (3)
1. a two air-cylinder compressing device, it is characterized in that: fixed guide cylinder (2) on the cylinder body of the first cylinder (1), guide cylinder (2) is steel structure, the piston rod of the first cylinder (1) stretches in guide cylinder (2) straight up, and be connected with the lower end of guide pillar (3), on the top of described guide pillar (3), alignment pin (4) is installed, alignment pin (4) can stretch out guide cylinder (2) outward, locating ring (5) is arranged with at the outer of described alignment pin (4), this locating ring (5) is installed on the end face of guide cylinder (2), described guide cylinder (2) is equipped with the second cylinder (6), the axial line of the second cylinder (6) parallels with the axial line of the first cylinder (1), the piston rod of described second cylinder (6) stretches out straight up, and be connected with one end of pressure arm (7), fix pressure head (8) in the bottom surface of pressure arm (7) other end, this pressure head (8) is positioned at directly over alignment pin (4),
Conical surface transition is passed through between the end face of described alignment pin (4) and all sides, the bottom of this alignment pin (4) is formed with short column (4a), short column (4a) embeds in the adaptive groove offered guide pillar (3) upper end, up big and down small two-part stepped hole is offered at the center of described alignment pin (4), countersunk head stay bolt is worn in this stepped hole, the lower end of described countersunk head stay bolt is stretched in guide pillar (3), alignment pin (4) and guide pillar (3) is fixed together;
The outline of described locating ring (5) be four angles be rounded down square, installing hole (5a) is offered at four angles place of locating ring (5), sunk screw is worn in each installing hole (5a), locating ring (5) and guide cylinder (2) are fixed together, projection (5b) is provided with between circumference two adjacent installing holes (5a), projection (5b) is circumferentially uniformly distributed, and the end face of the bottom of projection (5b) and locating ring (5) is connected as a single entity;
"T"-shaped groove (3a) is offered in the lower end of described guide pillar (3), and joint (9) is provided with between guide pillar (3) and the piston rod of the first cylinder (1), described joint (9) is bolt arrangement, the head boss of this joint (9) snaps in the "T"-shaped groove (3a) of guide pillar (3) lower end, both snap-fit engagement, the lower end of joint (9) is connected with the piston rod thread of the first cylinder (1), locked by nut (10), nut (10) is close to the end face of the first cylinder (1) piston rod.
2. according to claim 1 pair of air-cylinder compressing device, is characterized in that: be embedded with wear-resisting bushing pipe (12) in the inside of described guide cylinder (2), and described wear-resisting bushing pipe (12) and guide pillar (3) are slidably matched.
3. according to claim 1 pair of air-cylinder compressing device, is characterized in that: described pressure head (8) is pane structure, and this pressure head (8) is connected with pressure arm (7) by row's bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811046.6A CN105252196B (en) | 2015-11-20 | 2015-11-20 | Double-cylinder hold-down device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811046.6A CN105252196B (en) | 2015-11-20 | 2015-11-20 | Double-cylinder hold-down device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105252196A true CN105252196A (en) | 2016-01-20 |
| CN105252196B CN105252196B (en) | 2017-01-25 |
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ID=55092287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510811046.6A Active CN105252196B (en) | 2015-11-20 | 2015-11-20 | Double-cylinder hold-down device |
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| CN (1) | CN105252196B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1702708A1 (en) * | 2003-11-24 | 2006-09-20 | Misati, S.L. | Clamping jaw for automated welding installations |
| KR100819884B1 (en) * | 2007-05-30 | 2008-04-08 | 윤상욱 | Clamp device for short pipe of welding jig |
| CN102059487A (en) * | 2011-01-26 | 2011-05-18 | 李本华 | Automatic sleeve penetrating device |
| CN202021440U (en) * | 2010-12-29 | 2011-11-02 | 东莞市蓝冠机械设备有限公司 | Pipe welding jig |
| CN104439864A (en) * | 2013-09-13 | 2015-03-25 | 浦云飞 | Blanking type double gun positioning machine for welding pipes |
| CN104907758A (en) * | 2015-06-26 | 2015-09-16 | 山东金博利达精密机械有限公司 | A welding device for welding forming of flanges and pipes |
| CN104942511A (en) * | 2015-07-17 | 2015-09-30 | 柳州海特迪桢瑟汽车部件有限公司 | Positioning device for exhaust pipe |
-
2015
- 2015-11-20 CN CN201510811046.6A patent/CN105252196B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1702708A1 (en) * | 2003-11-24 | 2006-09-20 | Misati, S.L. | Clamping jaw for automated welding installations |
| KR100819884B1 (en) * | 2007-05-30 | 2008-04-08 | 윤상욱 | Clamp device for short pipe of welding jig |
| CN202021440U (en) * | 2010-12-29 | 2011-11-02 | 东莞市蓝冠机械设备有限公司 | Pipe welding jig |
| CN102059487A (en) * | 2011-01-26 | 2011-05-18 | 李本华 | Automatic sleeve penetrating device |
| CN104439864A (en) * | 2013-09-13 | 2015-03-25 | 浦云飞 | Blanking type double gun positioning machine for welding pipes |
| CN104907758A (en) * | 2015-06-26 | 2015-09-16 | 山东金博利达精密机械有限公司 | A welding device for welding forming of flanges and pipes |
| CN104942511A (en) * | 2015-07-17 | 2015-09-30 | 柳州海特迪桢瑟汽车部件有限公司 | Positioning device for exhaust pipe |
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| Publication number | Publication date |
|---|---|
| CN105252196B (en) | 2017-01-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200814 Address after: Luhe Industrial Zone, Huangjing Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: JIANGSU YOUFU AUTO PARTS TECHNOLOGY Co.,Ltd. Address before: 400026 No. 886 Haier Road, Jiangbei District, Chongqing Patentee before: CHONGQING SKYMAN AUTOMOBILE BODY MANUFACTURE Co.,Ltd. |
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| TR01 | Transfer of patent right |