CN110625150B - Chuck capable of increasing stroke - Google Patents
Chuck capable of increasing stroke Download PDFInfo
- Publication number
- CN110625150B CN110625150B CN201910932836.8A CN201910932836A CN110625150B CN 110625150 B CN110625150 B CN 110625150B CN 201910932836 A CN201910932836 A CN 201910932836A CN 110625150 B CN110625150 B CN 110625150B
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- CN
- China
- Prior art keywords
- chuck
- cuboid
- holes
- processed
- threaded
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- 210000000078 claw Anatomy 0.000 claims description 17
- 238000000034 method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16287—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially using fluid-pressure means to actuate the gripping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention relates to a chuck with an increased stroke, which aims to solve the problems that a workpiece needs to be clamped when a small part with an ellipsoidal end and a part with a large surface radian are processed, the stroke difficulty of a hydraulic chuck is adjusted to be large, and the adjustment period is long.
Description
Technical Field
The present invention relates to a chuck with increased clamping travel.
Background
The stroke of the pull type hydraulic chuck machined in the prior art is limited to a certain extent, when a small-mouth part with one end being an ellipsoid and a part with large surface radian are machined, in order to put one end of the part into the chuck, the workpiece is required to be clamped, so that the stroke of the chuck is required to be larger, the stroke difficulty ratio of the hydraulic chuck is required to be adjusted to be larger, the adjustment period is long, a scheme capable of rapidly changing the stroke is not available on the market, and the chuck is required to be provided.
Disclosure of Invention
The invention aims to solve the problems that when a small-mouth part with one end being an ellipsoid and a part with a large surface radian are processed, a workpiece is required to be clamped, the stroke difficulty ratio of a hydraulic chuck is adjusted to be large, and the adjustment period is long, and further provides a chuck with increased stroke.
The invention adopts the technical proposal for solving the problems that:
The clamping part comprises a positioning part and a switching clamping part, the switching clamping part comprises a switching disc, an auxiliary chuck, a movable pin, chuck fixing claws, a fixed pin, a chuck sliding block and two bolts, the switching disc is a disc body, three jaw mounting grooves are radially processed on the disc body, each jaw is respectively arranged in one jaw mounting groove, the auxiliary chuck is a first cuboid, one end of the first cuboid is provided with a notch groove, a rectangular bulge is processed on the side wall close to the other end of the first cuboid, through holes are processed on two side walls of the first cuboid notch groove, a strip-shaped through hole is processed on one end of the first cuboid close to the notch groove, a fixed pin is arranged in two through holes of the side wall of the first cuboid notch groove, the fixed pin is inserted on one jaw, the auxiliary chuck is rotationally connected with the jaw, the chuck fixing claws are second cuboid, two stepped holes are processed along the length direction, the two threaded holes of the chuck sliding block are correspondingly arranged with the two threaded holes on the chuck fixing claws, a rectangular bulge is processed in the side wall close to the other end of the first cuboid, a strip-shaped through hole is processed on the side surface of the first cuboid, a strip-shaped through hole is formed in the opposite to the corresponding threaded hole on the two side surface of the first cuboid, a strip-shaped through hole is formed in the side surface of the first cuboid opposite to the movable pin, a strip-shaped through hole is arranged on the opposite to the movable pin is arranged on the two side surface of the movable lug plate, and is arranged opposite to the first through hole on the movable plate and is arranged on the opposite side to the movable pin through hole and is arranged opposite to the first through hole and opposite to the threaded hole, the switching dish fixed mounting is on numerical control hydraulic chuck, and the locating part is installed on the switching dish.
The invention has the beneficial effects that:
1. The invention has high switching speed, only needs to detach the chuck jaws, does not need to detach the hydraulic chuck, and improves the working efficiency.
2. The positioning sleeve is arranged and can be detached, so that the same positioning reference can be used in the process of processing a large number of workpieces, the positioning is accurate, and the positioning sleeve can be detached when the positioning is not needed, and is very convenient.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a left side view of fig. 1, in which the upper part is not equipped with the splice tray 1-2.
Detailed Description
The first embodiment is as follows: describing the embodiment with reference to fig. 1-2, the chuck with increased stroke in this embodiment includes a positioning portion 2 and an adapting clamping portion 1, the adapting clamping portion 1 includes an adapting disc 1-2, an auxiliary chuck 1-4, a movable pin 1-5, a chuck fixing claw 1-6, a fixing pin 1-7 and a chuck slide block, and two bolts 1-8, the adapting disc 1-2 is an annular disc body, three claw mounting grooves are radially processed on the annular disc body, each claw is respectively mounted in one claw mounting groove, the auxiliary chuck 1-4 is a first cuboid, one end of the first cuboid is processed with an opening groove, a rectangular bulge is processed on a side wall close to the other end of the first cuboid, through holes are processed on two side walls of the opening groove of the first cuboid, one end of the first cuboid is processed with a strip-shaped through hole, two through holes in the side wall of the opening groove of the first cuboid are provided with fixing pins 1-7, the fixing pins 1-7 are inserted on one claw, the auxiliary chuck 1-4 is rotationally connected with the chuck, two through holes in the two side walls of the first cuboid are correspondingly provided with two through holes 1-8, two through holes are correspondingly processed on the two side walls of the two clamping blocks, two opposite threaded plates are correspondingly provided with two through holes on the two side walls of the first cuboid, two threaded plates are correspondingly processed on the two side walls of the slide blocks, the two threaded plates are correspondingly provided with two through holes 1-threaded holes on the two side plates are correspondingly provided with two through holes on the two threaded plates 1, and the two threaded plates are correspondingly provided with threaded holes on the two threaded plates, and the two threaded plates are correspondingly provided with two threaded plates, and each threaded plate is provided with a threaded hole with a threaded plate with a threaded hole, a movable pin 1-5 is arranged in a strip-shaped through hole on the first cuboid, two ends of the movable pin 1-5 are arranged on through holes of two lug plates, the axis of the movable pin 1-5 is parallel to the axis of the fixed pin 1-7, the side surface of the first cuboid, on which the through hole is machined, is perpendicular to the side surface of the first cuboid, on which the rectangular bulge is machined, and the rectangular bulge on the first cuboid is arranged close to the center line of the adapter plate 1-2, the adapter plate 1-2 is fixedly arranged on the numerical control hydraulic chuck, and the positioning part 2 is arranged on the adapter plate 1-2.
In the embodiment, the chuck slide block is a moving mechanism on a three-jaw hydraulic chuck, and three moving mechanisms move towards the center and are used for clamping a cylindrical workpiece; the numerical control hydraulic chuck is a universal mechanism for fixing a workpiece on a main shaft of a numerical control machine tool by using a hydraulic control sliding block.
The second embodiment is as follows: referring to fig. 1-2, a chuck for increasing stroke according to the present embodiment is described, the transfer clamping portion 1 includes a plurality of studs 1-1 and a plurality of nuts 1-3, one end near the stud 1-1 is processed with shoulders, the studs 1-1 are uniformly distributed and inserted on the transfer plate 1-2 along the circumferential direction of the transfer plate 1-2, one nut 1-3 is mounted on the external thread of one end of each stud 1-1 processing shoulder in a threaded manner, the other end of each stud 1-1 is mounted on the numerically controlled hydraulic chuck in a threaded manner, and other methods are the same as those of the first embodiment.
And a third specific embodiment: referring to fig. 1-2, in this embodiment, the positioning portion 2 includes a positioning sleeve 2-2, the positioning sleeve 2-2 is a barrel-shaped body with an opening at one end, an annular flange is machined at the opening end of the barrel-shaped body along the axial direction, the annular flange of the positioning sleeve 2-2 is fixedly mounted on one end face of the adapter plate 1-2, the positioning sleeve 2-2 is located on one side where the numerically controlled hydraulic chuck is mounted, the positioning portion 2 further includes a supporting sleeve 2-1, when the latter auxiliary chuck 1-4 is worn, the supporting sleeve 2-1 is mounted on the inner side wall of the adapter plate 1-2 and aligns the clamping workpiece through the supporting sleeve 2-1, the supporting sleeve 2-1 can restore the accuracy of the auxiliary chuck 1-4 when worn, repeated practicability can be achieved for many times, and the use cost is reduced. Because the auxiliary chucks 1-4 are worn after being used for a plurality of times, the manufacturing is not beneficial to saving the cost, the worn part can be turned off on the numerical control lathe, so that the auxiliary chuck jaws recover the original precision, the supporting sleeve can support the inner side of the auxiliary chuck, the turning of operators on the auxiliary chuck jaws is not affected, the auxiliary chuck jaws are in a clamping state in the whole process, the gap between the auxiliary chuck jaws and the whole mechanism is eliminated, and other methods are the same as those of the first embodiment.
The specific embodiment IV is as follows: referring to fig. 2, a description is given of a chuck with increased stroke according to this embodiment, in which a wavy bulge is formed on one end surface of a chuck fixing jaw 1-6, a bulge which is engaged with the wavy bulge on the chuck fixing jaw 1-6 is formed on one end surface of a chuck slider, and the wavy bulge on the chuck fixing jaw 1-6 is engaged with the bulge of the chuck slider. The other method is the same as in the first embodiment.
Principle of operation
According to the application, as shown in the figure 1, when one end of the turning is an ellipsoidal workpiece, the ellipsoidal section needs enough travel for opening chuck jaws, and the large end of the workpiece is placed in a main shaft hole of a hydraulic chuck; but also allows a relatively long stroke for clamping the chuck jaws, which are required to grip the small end of the workpiece. Because the stroke of the hydraulic chuck is smaller, the stroke increasing device is needed, when the numerical control hydraulic chuck is used for clamping a workpiece, the chuck sliding block is driven to move upwards, the chuck fixing claw 1-6 also moves upwards, at the moment, the fixing pin 1-7 is used for providing an upward distance for the auxiliary chuck 1-4, and because the fixing pin 1-7 is fixed under the limit of the switching disc 1-2, the auxiliary chuck 1-4 forms a laborious lever which takes the position of the fixing pin 1-7 as a fulcrum and takes the position of the movable pin 1-5 as a moving point, the opening stroke of the chuck fixing claw 1-6 is increased, and the clamping purpose is achieved.
Claims (2)
1. A chuck for increasing travel, comprising: the device comprises a positioning part (2) and a transfer clamping part (1), wherein the transfer clamping part (1) comprises a transfer disc (1-2), an auxiliary chuck (1-4), a movable pin (1-5), chuck fixing claws (1-6), a fixing pin (1-7), a chuck sliding block, two bolts (1-8), a plurality of double-end studs (1-1) and a plurality of nuts (1-3), the positioning part (2) comprises a positioning sleeve (2-2), the transfer disc (1-2) is an annular disc body, three claw mounting grooves are radially processed on the annular disc body, each claw is respectively arranged in one claw mounting groove, the auxiliary chuck (1-4) is a first cuboid, the first cuboid is provided with a slot at one end, rectangular bulges are processed on the side wall close to the other end of the first cuboid, through holes are processed on the two side walls of the first cuboid slot, a strip-shaped through hole is processed on one end of the first cuboid close to the slot, a fixing pin (1-7) is arranged in the two through holes on the side wall of the first cuboid slot, the fixing pin (1-7) is inserted on one claw, the auxiliary chuck (1-4) is rotationally connected with the claw, the chuck fixing claw (1-6) is a second cuboid, two stepped holes are processed on the second cuboid along the length direction, two threaded holes are processed on the chuck sliding block, and two threaded holes of the chuck slide block are correspondingly arranged with two stepped holes of the chuck fixed jaw (1-6), a bolt (1-8) is arranged in each counter bore, the threaded end of the bolt (1-8) is in threaded connection with the corresponding threaded hole of the chuck slide block, two lug plates are processed on the side wall of the second cuboid, two opposite through holes are processed on the two lug plates, the through holes on the two lug plates are oppositely arranged with the strip-shaped through holes on the first cuboid, a movable pin (1-5) is arranged in the strip-shaped through holes on the first cuboid, two ends of the movable pin (1-5) are arranged on the through holes of the two lug plates, the axis of the movable pin (1-5) is parallel to the axis of the fixed pin (1-7), the side surface of the processing through hole on the first cuboid is perpendicular to the side surface of the processing rectangular bulge on the first cuboid, the rectangular bulge on the first cuboid is close to the central line of the rotating disc (1-2), the rotating disc (1-2) is fixedly arranged on the numerical control chuck, the positioning part (2) is arranged on the rotating disc (1-2), one end of the rotating disc (1-1) is uniformly distributed on the rotating disc (1-1) and is provided with a plurality of threaded studs (1-1) which are arranged on the rotating disc, the other end of each double-end stud (1-1) is installed on the numerical control hydraulic chuck in a threaded connection mode, the locating sleeve (2-2) is a barrel-shaped body with one end open, an annular flange is machined at the open end of the barrel-shaped body along the axial direction, the annular flange of the locating sleeve (2-2) is fixedly installed on one end face of the switching disc (1-2), and the locating sleeve (2-2) is located on one side where the numerical control hydraulic chuck is installed.
2. An increased stroke chuck as in claim 1, wherein: one end face of the chuck fixing jaw (1-6) is provided with a wavy bulge, one end face of the chuck sliding block is provided with a bulge matched with the wavy bulge on the chuck fixing jaw (1-6), and the wavy bulge on the chuck fixing jaw (1-6) is arranged in a relative matched mode with the bulge of the chuck sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932836.8A CN110625150B (en) | 2019-09-29 | 2019-09-29 | Chuck capable of increasing stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932836.8A CN110625150B (en) | 2019-09-29 | 2019-09-29 | Chuck capable of increasing stroke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110625150A CN110625150A (en) | 2019-12-31 |
| CN110625150B true CN110625150B (en) | 2024-07-09 |
Family
ID=68974736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910932836.8A Active CN110625150B (en) | 2019-09-29 | 2019-09-29 | Chuck capable of increasing stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110625150B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210789289U (en) * | 2019-09-29 | 2020-06-19 | 中国兵器工业集团航空弹药研究院有限公司 | Chuck capable of increasing stroke |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3007591B2 (en) * | 1997-04-28 | 2000-02-07 | 株式会社北川鉄工所 | How to attach and detach top jaws on chuck |
| JP2000126912A (en) * | 1998-10-20 | 2000-05-09 | Howa Mach Ltd | Chuck with centrifugal force compensating mechanism |
| JP5311023B2 (en) * | 2009-01-14 | 2013-10-09 | 帝国チャック株式会社 | Heart compensation function addition device |
| CN102990408A (en) * | 2012-11-28 | 2013-03-27 | 顾林男 | Hydraulic chuck turning clamp of numerically controlled lathe |
| CN103624284A (en) * | 2013-10-25 | 2014-03-12 | 陕西航空电气有限责任公司 | Three-jaw chuck for lathe |
| KR101599513B1 (en) * | 2014-07-21 | 2016-03-04 | 주식회사 삼천리기계 | One Wedge Centering Hydraulic Chuck |
| CN208408585U (en) * | 2018-06-15 | 2019-01-22 | 东莞市金全顺五金模具有限公司 | A kind of machine tool chuck of extended type claw |
-
2019
- 2019-09-29 CN CN201910932836.8A patent/CN110625150B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210789289U (en) * | 2019-09-29 | 2020-06-19 | 中国兵器工业集团航空弹药研究院有限公司 | Chuck capable of increasing stroke |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110625150A (en) | 2019-12-31 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 150030 Heilongjiang Province, Harbin city Xiangfang District South Road No. 65 Applicant after: China Ordnance Industry Group Aviation Ammunition Research Institute Co.,Ltd. Address before: 150030 Heilongjiang Province, Harbin city Xiangfang District South Road No. 65 Applicant before: HARBIN JIANCHENG GROUP Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |