CN112620676A - Hydraulic expansion type chuck for workpiece clamping processing - Google Patents
Hydraulic expansion type chuck for workpiece clamping processing Download PDFInfo
- Publication number
- CN112620676A CN112620676A CN202011464076.1A CN202011464076A CN112620676A CN 112620676 A CN112620676 A CN 112620676A CN 202011464076 A CN202011464076 A CN 202011464076A CN 112620676 A CN112620676 A CN 112620676A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- chuck
- clamping
- wall
- outer end
- 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.)
- Pending
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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
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
-
- 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
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
Abstract
The invention discloses a hydraulic expansion type chuck for clamping and processing a workpiece, which belongs to the field of chucks and comprises a chuck main body, wherein a plurality of uniformly distributed mounting grooves are chiseled on the inner wall of the chuck main body, a pair of first sliding grooves are chiseled on the inner wall of the mounting grooves, first sliding blocks are connected inside the first sliding grooves in a sliding manner, a fixed block is fixedly connected between the pair of first sliding blocks, the outer end of the fixed block is fixedly connected with an arc-shaped clamping plate, clamping grooves are chiseled on the bottom wall of the mounting grooves, hydraulic rods are mounted inside the clamping grooves, the right ends of the hydraulic rods are fixedly connected with top plates, the top plates are fixedly connected with the fixed block, a plurality of uniformly distributed working grooves are chiseled on the upper end of the chuck main body, the workpiece can be better clamped, three claws can still hold the workpiece when power is suddenly cut off, so that the workpiece is not easy, thereby effectively improving the safety of using the chuck body.
Description
Technical Field
The invention relates to the field of chucks, in particular to a hydraulic expansion type chuck for clamping and processing a workpiece.
Background
Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises a chuck body, movable jaws and a jaw driving mechanism 3. The diameter of the chuck body is 65 mm at least and can reach 1500 mm at most, and a through hole is formed in the center of the chuck body so as to facilitate the workpiece or bar stock to pass through; the back part is provided with a cylindrical or short conical structure and is connected with the end part of a main shaft of the machine tool directly or through a flange plate. Chucks are commonly used in lathes, cylindrical grinders and internal grinders, and may also be used in conjunction with various indexing devices for milling and drilling machines.
The three-jaw uses the voltaic spanner to rotate the bevel gear, the bevel gear drives the plane rectangular screw thread, then drives the three-jaw to move centripetally, because the pitch of the plane rectangular screw thread is equal, so the three-jaw movement distance is equal, and the function of automatic centering is achieved. The three-jaw chuck consists of a large bevel gear, three small bevel gears and three jaws. The three small bevel gears are meshed with the large bevel gear, the back of the large bevel gear is provided with a plane thread structure, and the three clamping jaws are equally arranged on the plane thread. When the small bevel gear is pulled by a spanner, the large bevel gear rotates, and the plane thread on the back of the large bevel gear enables the three jaws to simultaneously approach or withdraw from the center.
Most current chucks use electrodynamic type chucks, press from both sides tightly the work piece through motor drive three-jaw, when cutting off the power supply suddenly, easily lead to the unable tight work piece of clamp of three-jaw, when the chuck is high-speed to rotate the use, fly out in the easy chuck of work piece, cause certain harm to chuck or outside.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a hydraulic expansion type chuck for clamping and processing a workpiece, which can better clamp the workpiece and enable three claws to still firmly grasp the workpiece when power is suddenly cut off, so that the workpiece is not easy to fly out of a chuck main body, and the safety of using the chuck main body is effectively improved.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
a hydraulic expansion type chuck for clamping and processing workpieces comprises a chuck main body, wherein a plurality of uniformly distributed mounting grooves are formed in the inner wall of the chuck main body, a pair of first sliding grooves are formed in the inner wall of each mounting groove, a first sliding block is connected to the inside of each first sliding groove in a sliding manner, a fixed block is fixedly connected between the first sliding blocks, an arc-shaped clamping plate is fixedly connected to the outer end of each fixed block, a clamping groove is formed in the bottom wall of each mounting groove in a drilling manner, a hydraulic rod is installed inside the clamping groove, a top plate is fixedly connected to the right end of the hydraulic rod and fixedly connected with the fixed blocks, a plurality of uniformly distributed working grooves are formed in the upper end of the chuck main body and positioned on the upper side of each mounting groove, a second sliding groove is formed in the inner bottom wall of each working groove in a drilling manner, a second sliding block is connected to the inside of each second sliding groove in a, fixedly connected with fixed plate between the inner wall of work groove, the inside threaded connection of fixed plate has the screw rod, the one end of screw rod is rotated with the outer end of puller block and is connected, the one end fixedly connected with bull stick of puller block is kept away from to the screw rod, and it can realize that better presss from both sides tightly the work piece, makes the three-jaw still firmly grasp the work piece when cutting off the power supply suddenly for the work piece is difficult for flying out from the chuck main part, thereby the effectual security that improves the use chuck main part.
Furthermore, the one end fixedly connected with non-slipping spur that the screw rod was kept away from to the tight piece in top, the outer end fixedly connected with rubber sleeve of non-slipping spur improves the frictional force between non-slipping spur and the work piece through the rubber sleeve, reduces the probability that the work piece drops from the chuck main part in.
Further, the equal fixedly connected with skid resistant course of inner wall of arc cardboard, the skid resistant course adopts high temperature resistant rubber to make, and the high temperature that produces is difficult for melting the skid resistant course when adding man-hour to the work piece, through the better fixed of arc cardboard to the work piece.
Furthermore, the outer end fixedly connected with antiskid cover of bull stick, antiskid cover outer end and palm phase-match improve the frictional force of palm and bull stick, are convenient for catch the better rotation of bull stick and adjust.
Furthermore, the inside wall fixedly connected with electro-magnet of second spout, the outer end fixedly connected with magnetic adsorption layer of second spout for it is difficult not hard up at the work inslot to push up tight piece.
Furthermore, the outer end of the chuck main body is coated with the hydrophobic layer, so that the adhesion of chips of a workpiece on the surface of the chuck main body is reduced, and the abrasion of the chips on the chuck main body is reduced.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can realize better pressing from both sides tight the work piece, makes the three-jaw still firmly grasp the work piece when cutting off the power supply suddenly for the work piece is difficult for flying out from the chuck main part, thereby the effectual security that improves the use chuck main part.
(2) The one end fixedly connected with non slipping spur of screw rod is kept away from to the tight piece in top, and the outer end fixedly connected with rubber sleeve of non slipping spur improves the frictional force between non slipping spur and the work piece through the rubber sleeve, reduces the probability that the work piece drops from the chuck main part in.
(3) The equal fixedly connected with skid resistant course of inner wall of arc cardboard, the skid resistant course adopts high temperature resistant rubber to make, and the high temperature that produces is difficult for melting the skid resistant course man-hour to the work piece, through the better fixed of arc cardboard to the work piece.
(4) The outer end fixedly connected with antiskid cover of bull stick, antiskid cover outer end and palm phase-match improve the frictional force of palm and bull stick, are convenient for catch the better rotation regulation of bull stick.
(5) The inside wall fixedly connected with electro-magnet of second spout, the outer end fixedly connected with magnetic adsorption layer of second spout for the tight piece is difficult not hard up in the work groove in the top.
(6) The outer end of the chuck main body is coated with the hydrophobic layer, so that the adhesion of chips of a workpiece to the surface of the chuck main body is reduced, and the abrasion of the chips to the chuck main body is reduced.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
fig. 2 is a schematic top sectional view of the present invention.
The reference numbers in the figures illustrate:
the clamping device comprises a chuck main body 1, a mounting groove 2, a first sliding groove 3, a first sliding block 4, a fixed block 5, an arc clamping plate 6, a hydraulic rod 7, a working groove 8, a second sliding groove 9, a second sliding block 10, a jacking block 11, a screw rod 12, a fixed plate 13, a rotating rod 14, an anti-sliding block 15, an electromagnet 16 and a top plate 17.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a hydraulic expansion type chuck for clamping and processing a workpiece comprises a chuck main body 1, wherein a plurality of uniformly distributed mounting grooves 2 are drilled on the inner wall of the chuck main body 1, a pair of first sliding grooves 3 are drilled on the inner wall of the mounting groove 2, first sliding blocks 4 are slidably connected inside the first sliding grooves 3, a fixed block 5 is fixedly connected between the pair of first sliding blocks 4, an arc-shaped clamping plate 6 is fixedly connected to the outer end of the fixed block 5, a clamping groove is drilled on the bottom wall of the mounting groove 2, a hydraulic rod 7 is mounted inside the clamping groove, a top plate 17 is fixedly connected to the right end of the hydraulic rod 7, the top plate 17 is fixedly connected to the fixed block 5, a plurality of uniformly distributed working grooves 8 are drilled on the upper end of the chuck main body 1, the working grooves 8 are located on the upper side of the mounting groove 2, second sliding grooves 9 are drilled on the inner bottom wall of the working, the upper end fixedly connected with of second slider 10 pushes up tight piece 11, fixedly connected with fixed plate 13 between the inner wall of work groove 8, and the internal thread of fixed plate 13 is connected with screw rod 12, and the one end of screw rod 12 is rotated with the outer end of pushing up tight piece 11 and is connected, and the one end fixedly connected with bull stick 14 of pushing up tight piece 11 is kept away from to screw rod 12.
Please refer to fig. 1-2, one end of the tightening block 11 away from the screw 12 is fixedly connected with an anti-slip block 15, the outer end of the anti-slip block 15 is fixedly connected with a rubber sleeve, the friction between the anti-slip block 15 and the workpiece is improved through the rubber sleeve, the probability of the workpiece falling from the chuck main body 1 is reduced, the inner wall of the arc-shaped clamping plate 6 is fixedly connected with an anti-slip layer, the anti-slip layer is made of high temperature resistant rubber, the anti-slip layer is not easily melted by the high temperature generated during the processing of the workpiece, and the workpiece is better fixed through the arc-shaped.
Please refer to fig. 1, the outer end of the rotating rod 14 is fixedly connected with an anti-slip sleeve, the outer end of the anti-slip sleeve is matched with the palm, the friction force between the palm and the rotating rod 14 is improved, the rotating rod 14 can be conveniently grasped and adjusted in a better rotating manner, the inner side wall of the second chute 9 is fixedly connected with the electromagnet 16, the outer end of the second chute 9 is fixedly connected with the magnetic adsorption layer, so that the jacking block 11 is not easy to loosen in the working groove 8, the outer end of the chuck main body 1 is coated with the hydrophobic layer, the chip adhesion of the workpiece on the surface of the chuck main body 1 is reduced, and the abrasion of.
When the related art is using the chuck, a workpiece to be machined is placed inside the chuck body 1, power is turned on and the hydraulic rod 7 is turned on, the hydraulic rod 7 pushes the fixed block 5 to slide in the mounting groove 2, so that the arc-shaped clamping plate 6 at one end of the hydraulic rod 7 is abutted against the outer side of the workpiece, when the rotating rod 14 is grasped and rotated, the jacking block 11 slides in the working groove 8, the electromagnet 16 on the inner side of the jacking block 11 is abutted against the outer side of the workpiece again, the electromagnet 16 is opened, the electromagnet 16 and the magnetic adsorption layer on the outer end of the second chute 9 are mutually adsorbed, the electromagnet 16 limits the workpiece in the chuck again, so that the workpiece can be clamped better, when the power is cut off suddenly, the three claws still firmly grasp the workpiece, so that the workpiece is not easy to fly out of the chuck body 1, and the safety of using the chuck body 1 is effectively improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (6)
1. A hydraulic expansion chuck for clamping machining of workpieces, comprising a chuck body (1), characterized in that: the inner wall of the chuck main body (1) is provided with a plurality of uniformly distributed mounting grooves (2), the inner wall of each mounting groove (2) is provided with a pair of first sliding grooves (3), the inner part of each first sliding groove (3) is connected with a first sliding block (4), a fixed block (5) is fixedly connected between the first sliding blocks (4), the outer end of each fixed block (5) is fixedly connected with an arc-shaped clamping plate (6), the bottom wall of each mounting groove (2) is provided with a clamping groove, a hydraulic rod (7) is arranged inside the clamping groove, the right end of each hydraulic rod (7) is fixedly connected with a top plate (17), the top plate (17) is fixedly connected with the fixed blocks (5), the upper end of the chuck main body (1) is provided with a plurality of uniformly distributed working grooves (8), the working grooves (8) are positioned on the upper side of the mounting grooves (2), the wall of each working groove (8) is provided with a second sliding groove (9), the inside sliding connection of second spout (9) has second slider (10), the tight piece (11) in upper end fixedly connected with top of second slider (10), fixedly connected with fixed plate (13) between the inner wall of work groove (8), the inside threaded connection of fixed plate (13) has screw rod (12), the one end of screw rod (12) is rotated with the outer end of the tight piece (11) in top and is connected, the one end fixedly connected with bull stick (14) of tight piece (11) in top is kept away from in screw rod (12).
2. The hydraulic expansion chuck for clamping machining of a workpiece according to claim 1, wherein: one end, far away from the screw rod (12), of the jacking block (11) is fixedly connected with an anti-skid block (15), and the outer end of the anti-skid block (15) is fixedly connected with a rubber sleeve.
3. The hydraulic expansion chuck for clamping machining of a workpiece according to claim 1, wherein: the inner wall of the arc-shaped clamping plate (6) is fixedly connected with an anti-skid layer, and the anti-skid layer is made of high-temperature-resistant rubber.
4. The hydraulic expansion chuck for clamping machining of a workpiece according to claim 1, wherein: the outer end of the rotating rod (14) is fixedly connected with an anti-skidding sleeve, and the outer end of the anti-skidding sleeve is matched with the palm.
5. The hydraulic expansion chuck for clamping machining of a workpiece according to claim 1, wherein: the inside wall fixedly connected with electro-magnet (16) of second spout (9), the outer end fixedly connected with magnetic adsorption layer of second spout (9).
6. The hydraulic expansion chuck for clamping machining of a workpiece according to claim 1, wherein: the outer end of the chuck main body (1) is coated with a hydrophobic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464076.1A CN112620676A (en) | 2020-12-11 | 2020-12-11 | Hydraulic expansion type chuck for workpiece clamping processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464076.1A CN112620676A (en) | 2020-12-11 | 2020-12-11 | Hydraulic expansion type chuck for workpiece clamping processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620676A true CN112620676A (en) | 2021-04-09 |
Family
ID=75312393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011464076.1A Pending CN112620676A (en) | 2020-12-11 | 2020-12-11 | Hydraulic expansion type chuck for workpiece clamping processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112620676A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276230A (en) * | 2023-05-10 | 2023-06-23 | 陕西长羽航空装备股份有限公司 | Equipment for manufacturing three-jaw rotary holding jaw for aviation aircraft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH266945A (en) * | 1948-09-06 | 1950-02-28 | Raetzer Viktor | Three-jaw chuck. |
| CN102773509A (en) * | 2012-05-31 | 2012-11-14 | 杭州欣诚祥机电技术有限公司 | Electric magnetic flange plate |
| US20130205957A1 (en) * | 2010-05-05 | 2013-08-15 | Birgitt Karlein | Centric clamping device |
| US20140001712A1 (en) * | 2012-06-20 | 2014-01-02 | Smw-Autoblok Spannsysteme Gmbh | Power operated chuck |
| CN203649451U (en) * | 2014-01-20 | 2014-06-18 | 钱培玉 | Three-jaw chuck with various clamping ways |
| CN104023883A (en) * | 2011-11-08 | 2014-09-03 | Sms米尔股份有限公司 | Chuck for machine tool for machining tubular, rotating workpiece |
| WO2014146655A1 (en) * | 2013-03-20 | 2014-09-25 | Schaeffler Technologies Gmbh & Co. Kg | Clamping jaw drive |
| KR20160068176A (en) * | 2014-12-05 | 2016-06-15 | 두산공작기계 주식회사 | Chucking apparatus of a turning center |
| CN106001658A (en) * | 2016-06-22 | 2016-10-12 | 赵文林 | Lathe chuck for preventing workpiece from axially sliding |
| KR20170114426A (en) * | 2016-04-04 | 2017-10-16 | 주식회사 삼천리기계 | Hydraulic Chuck for Fixing a Thin Pipe |
| CN206779494U (en) * | 2017-05-15 | 2017-12-22 | 李荣兴 | A kind of Lathe chuck jaw structure |
| CN108637285A (en) * | 2018-05-04 | 2018-10-12 | 四川凌峰航空液压机械有限公司 | Irregular workpiece centering chucks |
-
2020
- 2020-12-11 CN CN202011464076.1A patent/CN112620676A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH266945A (en) * | 1948-09-06 | 1950-02-28 | Raetzer Viktor | Three-jaw chuck. |
| US20130205957A1 (en) * | 2010-05-05 | 2013-08-15 | Birgitt Karlein | Centric clamping device |
| US20140284889A1 (en) * | 2011-11-08 | 2014-09-25 | Karl-Josef Esser | Chuck for apparatus for machining a tubular rotating workpiece |
| CN104023883A (en) * | 2011-11-08 | 2014-09-03 | Sms米尔股份有限公司 | Chuck for machine tool for machining tubular, rotating workpiece |
| CN102773509A (en) * | 2012-05-31 | 2012-11-14 | 杭州欣诚祥机电技术有限公司 | Electric magnetic flange plate |
| US20140001712A1 (en) * | 2012-06-20 | 2014-01-02 | Smw-Autoblok Spannsysteme Gmbh | Power operated chuck |
| WO2014146655A1 (en) * | 2013-03-20 | 2014-09-25 | Schaeffler Technologies Gmbh & Co. Kg | Clamping jaw drive |
| CN203649451U (en) * | 2014-01-20 | 2014-06-18 | 钱培玉 | Three-jaw chuck with various clamping ways |
| KR20160068176A (en) * | 2014-12-05 | 2016-06-15 | 두산공작기계 주식회사 | Chucking apparatus of a turning center |
| KR20170114426A (en) * | 2016-04-04 | 2017-10-16 | 주식회사 삼천리기계 | Hydraulic Chuck for Fixing a Thin Pipe |
| CN106001658A (en) * | 2016-06-22 | 2016-10-12 | 赵文林 | Lathe chuck for preventing workpiece from axially sliding |
| CN206779494U (en) * | 2017-05-15 | 2017-12-22 | 李荣兴 | A kind of Lathe chuck jaw structure |
| CN108637285A (en) * | 2018-05-04 | 2018-10-12 | 四川凌峰航空液压机械有限公司 | Irregular workpiece centering chucks |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276230A (en) * | 2023-05-10 | 2023-06-23 | 陕西长羽航空装备股份有限公司 | Equipment for manufacturing three-jaw rotary holding jaw for aviation aircraft |
| CN116276230B (en) * | 2023-05-10 | 2023-08-11 | 陕西长羽航空装备股份有限公司 | Equipment for manufacturing three-jaw rotary holding jaw for aviation aircraft |
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