CN2291225Y - Hydraulic clamping mechanism of cold drawing machine - Google Patents
Hydraulic clamping mechanism of cold drawing machine 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
- clamping
- center
- dolly
- hydraulic
- hydraulic cylinder
- 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
Links
- 238000010622 cold drawing Methods 0.000 title abstract 2
- 210000000078 claw Anatomy 0.000 abstract description 4
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
A hydraulic clamping mechanism of a cold drawing machine comprises a drawing trolley, a hydraulic oil cylinder and a clamping claw. The clamping jaw structure is a clamping disc, and three-leg jaws are uniformly distributed on the plane of one end of the clamping disc. The three-claw hand is a structure capable of synchronously moving towards the center on the disc surface, and the holding diameter of the claw hand is adjusted. The hydraulic cylinder is one, a piston rod of the hydraulic cylinder is connected with the center of the clamping disc through a shaft, and the axis of a moving shaft of the drawing trolley and the center of the hydraulic cylinder are consistent with the center of a clamping claw of the clamping disc. The utility model discloses having simplified original structure and having saved a set of pump station in hydraulic cylinder and the dolly, having improved the gripper jaw structure, and drawing dolly the place ahead taper hole, improve the cold drawn pipe precision and reduce the cost.
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 clamping mechanism of cold drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235727 CN2291225Y (en) | 1997-04-11 | 1997-04-11 | Hydraulic clamping mechanism of cold drawing machine |
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 clamping mechanism of cold drawing machine |
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 |