CN2291225Y - Hydraulic holding mechanism for cold drawer - Google Patents
Hydraulic holding mechanism for cold drawer Download PDFInfo
- Publication number
- CN2291225Y CN2291225Y CN 97235727 CN97235727U CN2291225Y CN 2291225 Y CN2291225 Y CN 2291225Y CN 97235727 CN97235727 CN 97235727 CN 97235727 U CN97235727 U CN 97235727U CN 2291225 Y CN2291225 Y CN 2291225Y
- Authority
- CN
- China
- Prior art keywords
- center
- clamping
- disk
- oil cylinder
- hydraulic oil
- 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 hydraulic clamping mechanism for cold drawers, composed of a drawing cart, a hydraulic oil cylinder and a clamping jaw. The structure of the clamping jaw is a clamping disk, and the plane of one end of the clamping disk is uniformly provided with three paw hands. The three paw hands is a structure which can be moved simultaneously toward the center on the disk to adjust the clamping diameter of the jaw hands. The hydraulic oil cylinder is single, and the piston rod of the hydraulic oil cylinder is connected with the center of the clamping disk through a shaft. The shaft center of the movable shaft of the drawing cart, the center of the hydraulic oil cylinder and the center of the clamping jaw of the clamping disk are identical. The utility model simplifies the original structure and omit a hydraulic oil cylinder and a group of pump stations in the cart. The clamping jaw structure and the front taper hole of the drawing cart are improved, the accuracy of a cold-drawing tube is improved, and the cost is reduced.
Description
The utility model relates to a kind of drawbench hydraulic pressure clamping device.
Accurate drawbench is the equipment that is used to produce accurate cold-drawn oil cylinder (cylinder).At first mould is passed in finished pipe end, utilize the clamping device of drawing dolly front end to clamp the pipe end, thereby utilize hydraulic haulage drawing dolly that pipe is extracted by mould, obtain the production tube of required accurate specification.
Traditional drawbench hydraulic pressure clamping device as shown in Figure 1, former clamping device is that the one group of pumping plant that is contained in the drawing dolly drives two small oil tanks (5) action, two small oil tank piston rods (6) promote one group of lever (9) and promote on every fixture block of two fixture blocks (7) V-arrangement jaw (74) is arranged again, and last four jaws of two fixture blocks (7) (74) tighten pipe (1) end together thus.
When two small oil tanks while pushing piston-rods (6), promote two fixture blocks (7) and enter in drawing dolly (4) the front end four sides taper hole (3), then fixture block (7) tightens, so two V-arrangement jaws (74) tighten pipe (1) termination simultaneously.
There is complex structure in above-mentioned clamping device, and the V-arrangement jaw makes dolly center and tubing center be difficult for the consistent problems such as drawn tube precision deficiency that cause.
The purpose of this utility model provides the drawbench hydraulic pressure clamping device that a kind of drawing center is consistent with the dolly center, improve the drawn tube quality.
The technical solution of the utility model is:
A kind of drawbench hydraulic pressure clamping device, by drawing dolly hydraulic jack, gripper jaw constitutes, and the gripper jaw structure is a clamping disk, is evenly equipped with the tripod cleft hand on clamping disk end one end face.The tripod cleft hand is the structure that can entad move synchronously in card, regulates cleft hand clamping diameter.
Because gripper jaw makes three claws into, be distributed on the clamping disk, be easy to consistently with drawing dolly, tubing center, finish the invention task.
Fig. 1 is the drawbench hydraulic pressure clamping device of traditional usefulness.
Fig. 2 is embodiment of the present utility model.
Fig. 3 is the A1-A1 profile of Fig. 1.
Fig. 4 is the A-A profile of Fig. 2.
The following the utility model that is described in detail in conjunction with the accompanying drawings
Traditional drawbench hydraulic pressure clamping device is that the one group of pumping plant that is contained in the drawing dolly drives 2 small oil tanks (5) action, the piston rod (6) of two small oil tanks (5), promote one group of lever (9), promoting has V-arrangement jaw (74) on every fixture block of two fixture blocks (7) again, and last four jaws of two fixture blocks (7) (74) tighten pipe (1) end together thus.When two small oil tanks while pushing piston-rods (6), promote two fixture blocks (7) and enter in drawing dolly (4) the front end four sides taper hole (3), then fixture block (7) tightens, so two V-arrangement jaws (74) tighten pipe (1) termination simultaneously.Pipe (1) end pass mould (2) (Fig. 1, Fig. 3).
Structure of the present utility model is: drawbench hydraulic pressure clamping device, by drawing dolly (4), hydraulic jack (51), gripper jaw constitutes, the gripper jaw structure is a clamping disk (61), be evenly equipped with tripod cleft hand (71) on clamping disk end one side, tripod cleft hand (71) is the structure that can entad move synchronously in card, regulates cleft hand clamping diameter.
There is conical bore (31) in drawing dolly the place ahead, enter conical bore (31) behind tripod cleft hand (71) the clamping drawn tube (1) and clamp drawn tube (1), by drawing dolly (4) hard-drawing liquor compressing cylinder (51) is one, the piston rod (511) of hydraulic jack (51) is connected with clamping disk (61), and shifting axle (8) axle center of drawing dolly (4), hydraulic jack (51) center and clamping disk, tripod cleft hand (71) center are consistent.(Fig. 2, Fig. 4).
Because only with a hydraulic jack (51), oil cylinder piston bar (511) is connected with clamping disk (61), guarantee with one heart, the tripod cleft hand (71) of clamping disk (61) end face is the structure that can entad move synchronously, guaranteed the concentricity of cleft hand (71) center and clamping disk and hydraulic jack, also guaranteed concentricity with the drawing pipe.
The medial surface of tripod cleft hand (clamping face) can be zigzag or pincer, and its opposite external side face is to be conical arc surface, makes the conical bore (31) that enters drawing dolly the place ahead behind tripod cleft hand (71) the clamping pipe (1).
The utility model has been simplified original structure, has saved a hydraulic jack, and one group of pumping plant, has improved the gripper jaw structure, and drawing dolly front end four sides taper hole changes the garden taper hole into, improves the cold-drawn pipe precision and reduces the cost.
Claims (3)
1, a kind of drawbench hydraulic pressure clamping device, by drawing dolly (4), hydraulic jack (51), gripper jaw constitutes, it is characterized in that the gripper jaw structure is a clamping disk (61), on clamping disk one end face, be evenly equipped with tripod cleft hand (71), tripod cleft hand (71) is the structure that can entad move synchronously in card.
2, pull out machine hydraulic pressure clamping device by the described order of claim 1, it is characterized in that hydraulic jack (51) is one, hydraulic jack (51) piston rod is connected by axle with clamping disk (61) center, and shifting axle (8) axle center, hydraulic jack (51) center of drawing dolly (4) are consistent with clamping disk (61) gripper jaw (71) center.
3, pull out machine hydraulic pressure clamping device by the described order of claim 1, it is characterized in that: there is garden taper hole (31) in drawing dolly the place ahead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235727 CN2291225Y (en) | 1997-04-11 | 1997-04-11 | Hydraulic holding mechanism for cold drawer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235727 CN2291225Y (en) | 1997-04-11 | 1997-04-11 | Hydraulic holding mechanism for cold drawer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2291225Y true CN2291225Y (en) | 1998-09-16 |
Family
ID=33946760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97235727 Expired - Fee Related CN2291225Y (en) | 1997-04-11 | 1997-04-11 | Hydraulic holding mechanism for cold drawer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2291225Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100478093C (en) * | 2007-06-14 | 2009-04-15 | 吉林大学 | Section-drawing clamping device |
| CN102581049A (en) * | 2012-03-05 | 2012-07-18 | 宜兴市景程模具有限公司 | Improved annular jaw splice piece of hydraulic draw-bench |
| CN103447327A (en) * | 2013-09-17 | 2013-12-18 | 西安麦特沃金液控技术有限公司 | Hydraulic continuous drawing machine |
| CN103658207A (en) * | 2013-12-23 | 2014-03-26 | 陈焕祥 | Cold-drawing pull head |
| CN105057374A (en) * | 2015-08-12 | 2015-11-18 | 东北大学 | Automatic mould loading and pre-drawing equipment used for pipe cold drawing machine |
| CN110893422A (en) * | 2018-09-13 | 2020-03-20 | 航天科工惯性技术有限公司 | Elastic drawing device |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
| CN114226477A (en) * | 2021-10-27 | 2022-03-25 | 首都航天机械有限公司 | Novel automatic drawing forming device for spray pipe bundle |
-
1997
- 1997-04-11 CN CN 97235727 patent/CN2291225Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100478093C (en) * | 2007-06-14 | 2009-04-15 | 吉林大学 | Section-drawing clamping device |
| CN102581049A (en) * | 2012-03-05 | 2012-07-18 | 宜兴市景程模具有限公司 | Improved annular jaw splice piece of hydraulic draw-bench |
| CN103447327A (en) * | 2013-09-17 | 2013-12-18 | 西安麦特沃金液控技术有限公司 | Hydraulic continuous drawing machine |
| CN103447327B (en) * | 2013-09-17 | 2015-07-08 | 西安麦特沃金液控技术有限公司 | Hydraulic continuous drawing machine |
| CN103658207A (en) * | 2013-12-23 | 2014-03-26 | 陈焕祥 | Cold-drawing pull head |
| CN105057374A (en) * | 2015-08-12 | 2015-11-18 | 东北大学 | Automatic mould loading and pre-drawing equipment used for pipe cold drawing machine |
| CN105057374B (en) * | 2015-08-12 | 2017-01-11 | 东北大学 | Automatic mould loading and pre-drawing equipment used for pipe cold drawing machine |
| CN110893422A (en) * | 2018-09-13 | 2020-03-20 | 航天科工惯性技术有限公司 | Elastic drawing device |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
| CN114226477A (en) * | 2021-10-27 | 2022-03-25 | 首都航天机械有限公司 | Novel automatic drawing forming device for spray pipe bundle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |