CN103394771A - Hydraulic gear shaping fixture - Google Patents
Hydraulic gear shaping fixture Download PDFInfo
- Publication number
- CN103394771A CN103394771A CN2013103480345A CN201310348034A CN103394771A CN 103394771 A CN103394771 A CN 103394771A CN 2013103480345 A CN2013103480345 A CN 2013103480345A CN 201310348034 A CN201310348034 A CN 201310348034A CN 103394771 A CN103394771 A CN 103394771A
- Authority
- CN
- China
- Prior art keywords
- hollow shaft
- pull bar
- chuck body
- sealing ring
- inner cavity
- 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
Links
Images
Abstract
The invention discloses a hydraulic gear shaping fixture. A cylindrical inner cavity is formed in the center of a chuck body of the hydraulic gear shaping fixture, and a hollow shaft coaxial with the cylindrical inner cavity is arranged in the cylindrical inner cavity. A pull rod is arranged in an inner cavity of the hollow shaft, the peripheral face of the pull rod comprises a threaded segment, and the pull rod and the hollow shaft are fixed together through a nut. The hollow shaft and the pull rod can move up and down in the cylindrical inner cavity along the cylindrical inner cavity in the axial direction. The lower end of the pull rod is connected with a piston rod of a hydraulic oil cylinder. Three T-shaped grooves are evenly distributed in the peripheral face of the hollow shaft, wedge-shaped sliders are embedded in the T-shaped grooves, T-shaped blocks are arranged on the wedge-shaped sliders, and clamping jaws are fixedly connected with the wedge-shaped sliders 1 through the T-shaped blocks and fastening bolts. The matching faces between the clamping jaws and the wedge-shaped sliders are tooth-shaped matching faces. The hydraulic gear shaping fixture is particularly suitable for gear shaping of various kinds of shaft workpieces of different specifications and has the advantages of being convenient to clamp fast, strong in universality, high in centering accuracy, reliable in clamping, capable of promoting production efficiency and the like.
Description
Technical field
The present invention relates to a kind of machining fixture, especially a kind of hydraulic pressure gear-shaping clamp that is applicable to many kinds, different size shaft-like workpiece Gear Shaping.
Background technology
The shaft-like workpiece Gear Shaping, generally using its cylindrical as positioning datum, and for processing different size shaft-like workpiece, outside diameter is not quite similar.In prior art, usually adopt round buss and inner core elastic jacket location to clamp, this kind tool structure is simple, but need to make plurality of specifications inner core elastic jacket according to different work piece sizes, and versatility is poor, comparatively inconvenience when many kinds, small lot batch manufacture; Adopt in addition in addition scroll chuck, with hand-operated clamping, but the scroll chuck repetitive positioning accuracy is low, and due to the restriction of work top, the spanner limited space, operation inconvenience, working (machining) efficiency is lower.
Summary of the invention
The present invention is the weak point that exists in above-mentioned prior art for avoiding, and provides that a kind of highly versatile, centering precision are high, easy to adjust, reliable clamping, the hydraulic pressure gear-shaping clamp efficiently that moves.
The present invention be the technical solution problem by the following technical solutions.
Hydraulic pressure gear-shaping clamp, its design feature are to comprise chuck body, hollow shaft, wedge block, T shape piece, claw and pull bar; The centre of described chuck body is provided with the stair-stepping cylindrical cavity that penetrates described chuck body along the thickness direction of described chuck body, in described cylindrical cavity, is provided with the hollow shaft coaxial with described cylindrical cavity; In the inner chamber of described hollow shaft, be provided with described pull bar, on the outer peripheral face of described pull bar, include thread segment, by nut, described hollow shaft and described pull bar are fixed together; Described hollow shaft and described pull bar can be in described cylindrical cavity axially moving up and down along described cylindrical cavity; On the outer peripheral face of described hollow shaft, be distributed with equably three T-slots, in described T-slot, be embedded with described wedge block, on described wedge block, be provided with described T shape piece, described claw is fixedly connected by T shape piece and trip bolt and wedge block; Mating surface between described claw and described wedge block is the profile of tooth mating surface.
The design feature of hydraulic pressure gear-shaping clamp of the present invention also is:
Between the upper end external diameter of described pull bar and chuck body, by sealing ring, seal cover, sealing ring gland seal, the lower end of pull bar and the piston rod of hydraulic jack are fixedly connected.
Described sealing ring is rubber seal.
Fit system between described pull bar upper end external diameter and sealing ring gland is matched in clearance.
Described sealing ring gland is fixedly connected by trip bolt and described chuck body.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Hydraulic pressure gear-shaping clamp of the present invention, pull bar is fixed by fastening screw nut and hollow shaft, can move up and down along the chuck body endoporus, between upper end external diameter and chuck body, with seal and seal cover, sealing ring gland seal, prevents that smear metal from entering in pull bar and chuck body gap; Lower end connects with hydraulic cylinder piston rod, and pull bar is Step Shaft, hollow-core construction, in order to hold workpiece shaft extension part; Hollow shaft axially is evenly equipped with three T-slots that become certain inclination angle with vertical direction, and this T-slot matches with wedge block; Claw and wedge block mating surface are the comb shape tooth, the position of capable of regulating claw on wedge block, and to adapt to different size clamping workpiece needs, claw is fixed by T shape piece and trip bolt and wedge block.When cylinder piston rod was flexible, pull bar also stretched with piston rod and drives hollow shaft and moves up and down, and forced wedge block to produce centrifugal or centripetal motion, thereby made claw realize loosening or clamping.
The characteristics of hydraulic pressure gear-shaping clamp of the present invention mainly contain:
1) adopt the pull bar hollow-core construction, and between pull bar external diameter and chuck body, with seal and seal cover, sealing ring gland seal design, can adapt to major axis and stretch workpiece gear shaping needs, avoid again smear metal to enter in pull bar and chuck body gap, affect pull bar motion, reduce frock service life.
2) adopt wedge type power chuck to clamp, highly versatile, centering precision are high, reliable clamping, easy to adjust;
3) adopt hydraulic circuit to control, loading and unloading are quick, reduce labour intensity, enhance productivity.
Hydraulic pressure gear-shaping clamp of the present invention, be particularly useful for many kinds, different size shaft-like workpiece Gear Shaping, has that convenient mounting and clamping is quick, highly versatile, centering precision are high, reliable clamping, the advantage such as can enhance productivity.
The accompanying drawing explanation
Fig. 1 is the front view of hydraulic pressure gear-shaping clamp of the present invention.
Fig. 2 is the top view of synchronous hydraulic gear-shaping clamp of the present invention.
Fig. 3 is the cutaway view of wherein a kind of work piece of hydraulic pressure gear-shaping clamp of the present invention.
Fig. 4 is the cutaway view of the another kind of work piece of hydraulic pressure gear-shaping clamp of the present invention.
Label in accompanying drawing 1～accompanying drawing 4: 1 wedge block, 2 T shape pieces, 3 claws, 4 pull bars, 5 seal covers, 6 sealing ring glands, 7 hollow shafts, 8 chuck bodies, 801 cylindrical cavities, 9 sealing rings, 10 trip bolts, 11 nuts, 12 workpiece, 13 mating surfaces.
Below pass through the specific embodiment, and the invention will be further described by reference to the accompanying drawings.
The specific embodiment
Referring to accompanying drawing 1～accompanying drawing 4, the hydraulic pressure gear-shaping clamp comprises chuck body 8, hollow shaft 7, wedge block 1, T shape piece 2, claw 3 and pull bar 4; The centre of described chuck body 8 is provided with the stair-stepping cylindrical cavity 801 that penetrates described chuck body 8 along the thickness direction of described chuck body 8, in described cylindrical cavity 801, is provided with the hollow shaft 7 coaxial with described cylindrical cavity 801; In the inner chamber of described hollow shaft 7, be provided with described pull bar 4, on the outer peripheral face of described pull bar 4, include thread segment, by nut 11, described hollow shaft 7 and described pull bar 4 are fixed together; Described hollow shaft 7 and described pull bar 4 can be in described cylindrical cavity 801 axially moving up and down along described cylindrical cavity 801; On the outer peripheral face of described hollow shaft 7, be distributed with equably three T-slots, in described T-slot, be embedded with described wedge block 1, on described wedge block 1, be provided with described T shape piece 2, described claw 3 is fixedly connected with wedge block 1 by T shape piece 2 and trip bolt 10; Mating surface 13 between described claw 3 and described wedge block 1 is the profile of tooth mating surface.
Between the upper end external diameter of described pull bar 4 and chuck body 8, by sealing ring 9, seal cover 5,6 sealings of sealing ring gland, the lower end of pull bar 4 and the piston rod of hydraulic jack are fixedly connected.
Described sealing ring 9 is rubber seal.
Fit system between described pull bar 4 upper end external diameters and sealing ring gland 6 is matched in clearance.
Described sealing ring gland 6 is fixedly connected by trip bolt 10 and described chuck body 8.
Describedly by chuck body 8, hollow shaft 7, wedge block 1, T shape piece 2, claw 3, pull bar 4, seal cover 6, sealing ring gland 5, hydraulic circuit etc., formed.Pull bar 4 is fixing by fastening screw nut and hollow shaft 7, can move up and down along chuck body 8 endoporus, and 8 of upper end external diameter and chuck bodies, with seal and seal cover 6,5 sealings of sealing ring gland, prevent that smear metal from entering in pull bar 4 and chuck body 8 gaps; Lower end connects with hydraulic cylinder piston rod, and pull bar 4 is Step Shaft, hollow-core construction, in order to hold the shaft extension part of processed shaft-like workpiece 12; Hollow shaft 7 axially is evenly equipped with three T-slots that become certain inclination angle with vertical direction, and this T-slot matches with wedge block 1; Claw 3 is the comb shape flank of tooth with wedge block 1 mating surface, can coordinate the position of tooth to adjust the position of claw 3 on wedge block 2 by adjustment, and to adapt to different size workpiece 12 clamping needs, it is fixing that claw 3 passes through T shape piece 2 and trip bolt and wedge block 1.When cylinder piston rod was flexible, pull bar 4 also stretched with piston rod and drives hollow shaft 7 and moves up and down, and forced wedge block 2 to produce centrifugal or centripetal motion, thereby made claw 3 realize loosening or clamping.
When hydraulic cylinder pulls pull bar to move downward, because T-slot is outward-dipping from top to down, wedge block radially moves to the axis direction of hollow shaft along described hollow shaft, so the distance between wedge block reduces, distance between claw also reduces, and claw promptly.Otherwise when hydraulic cylinder pulled pull bar to move upward, the distance between three wedge blocks increased, and wedge block is to the motion of the axis direction away from hollow shaft, and the distance between wedge block increases, and the distance between claw also increases, and claw loosens.
Fixture of the present invention is applicable to many kinds, and different size axial workpiece Gear Shaping has that highly versatile, centering precision are high, easy to adjust, an advantage such as reliable clamping, action are quick, has effectively guaranteed quality and the working (machining) efficiency of workpiece.
Described pull bar is Step Shaft, hollow-core construction, in order to hold workpiece shaft extension part, between pull bar upper end external diameter and chuck body, with seal and seal cap sealing, the pull bar lower end connects with hydraulic cylinder piston rod, pull bar middle part external diameter car has screw thread, by fastening screw nut and hollow shaft, fixes.On the outer peripheral face of described hollow shaft, axially be evenly equipped with three T-slots that become certain inclination angle with vertical direction, T-slot is outward-dipping from top to down, namely to the axis direction away from described hollow shaft, tilts from top to down.This T-slot matches with wedge block.Described claw and wedge block mating surface are the comb shape tooth, the position of capable of regulating claw on wedge block, and to adapt to different size clamping workpiece needs, claw is fixed by T shape piece and trip bolt and wedge block.When cylinder piston rod was flexible, pull bar also stretched with piston rod and drives hollow shaft and moves up and down, and forced wedge block to produce centrifugal or centripetal motion, thereby made claw realize loosening or clamping.
Frock of the present invention, pull bar are hollow-core construction, and between pull bar external diameter and chuck body with seal and seal cover, sealing ring gland seal, can adapt to long-axle workpieces 12 gear shaping needs, avoid again smear metal to enter in pull bar and chuck body gap, affect pull bar motion, reduce frock service life; Adopt wedge type power chuck to clamp and hydraulic circuit is controlled, highly versatile, centering precision are high, reliable clamping, easy to adjust, and action is quick, and labour intensity is low, and production efficiency is high.
Claims (5)
1. the hydraulic pressure gear-shaping clamp, is characterized in that, comprises chuck body (8), hollow shaft (7), wedge block (1), T shape piece (2), claw (3) and pull bar (4); The centre of described chuck body (8) is provided with the stair-stepping cylindrical cavity (801) that penetrates described chuck body (8) along the thickness direction of described chuck body (8), in described cylindrical cavity (801), is provided with the hollow shaft (7) coaxial with described cylindrical cavity (801); In the inner chamber of described hollow shaft (7), be provided with described pull bar (4), on the outer peripheral face of described pull bar (4), include thread segment, by nut (11), described hollow shaft (7) and described pull bar (4) are fixed together; Described hollow shaft (7) and described pull bar (4) can be in described cylindrical cavity (801) axially moving up and down along described cylindrical cavity (801); On the outer peripheral face of described hollow shaft (7), be distributed with equably three T-slots, in described T-slot, be embedded with described wedge block (1), on described voussoir (1), be provided with described T shape piece (2), described claw (3) is fixedly connected with voussoir (1) by T shape piece (2) and trip bolt (10); Mating surface (13) between described claw (3) and described wedge block (1) is the profile of tooth mating surface.
2. hydraulic pressure gear-shaping clamp according to claim 1, it is characterized in that, between the upper end external diameter of described pull bar (4) and chuck (8), by sealing ring (9), seal cover (5), sealing ring gland (6) sealing, the lower end of pull bar (4) and the piston rod of hydraulic jack are fixedly connected.
3. according to claim 1 with 2 described hydraulic pressure gear-shaping clamps, is characterized in that, described sealing ring (9) is rubber seal.
4. according to claim 1,2 and 3 described hydraulic pressure gear-shaping clamps, is characterized in that, the fit system between described pull bar (4) upper end external diameter and sealing ring gland (6) is matched in clearance.
5. according to claim 1 with 2 described hydraulic pressure gear-shaping clamps, is characterized in that, described sealing ring gland (6) is fixedly connected by trip bolt (10) and described chuck body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348034.5A CN103394771B (en) | 2013-08-09 | 2013-08-09 | Hydraulic pressure gear-shaping clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348034.5A CN103394771B (en) | 2013-08-09 | 2013-08-09 | Hydraulic pressure gear-shaping clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103394771A true CN103394771A (en) | 2013-11-20 |
| CN103394771B CN103394771B (en) | 2016-04-06 |
Family
ID=49558596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310348034.5A Active CN103394771B (en) | 2013-08-09 | 2013-08-09 | Hydraulic pressure gear-shaping clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103394771B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544278A (en) * | 2018-06-15 | 2018-09-18 | 中原内配集团股份有限公司 | A kind of multi-dot hydraulic pressure clamps, self-centering type cylindrical work fixture |
| CN114260519A (en) * | 2021-11-23 | 2022-04-01 | 郑建平 | Gear machining apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056102U (en) * | 1989-06-08 | 1990-04-18 | 成都航空工业学校 | Hydraulic self-lock chuck |
| JP2007061958A (en) * | 2005-08-31 | 2007-03-15 | Seiko Instruments Inc | Chuck device |
| CN201357240Y (en) * | 2009-01-12 | 2009-12-09 | 山东法因数控机械股份有限公司 | Chuck for loading and clamping cylinder workpieces |
| CN102451923A (en) * | 2010-11-02 | 2012-05-16 | 唐淑娟 | Split type inverted wedge type power chuck for machine |
| CN202317093U (en) * | 2011-09-15 | 2012-07-11 | 吴红 | Chuck for machine tool |
| CN203390329U (en) * | 2013-08-09 | 2014-01-15 | 合肥长源液压股份有限公司 | Hydraulic gear shaping clamp |
-
2013
- 2013-08-09 CN CN201310348034.5A patent/CN103394771B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056102U (en) * | 1989-06-08 | 1990-04-18 | 成都航空工业学校 | Hydraulic self-lock chuck |
| JP2007061958A (en) * | 2005-08-31 | 2007-03-15 | Seiko Instruments Inc | Chuck device |
| CN201357240Y (en) * | 2009-01-12 | 2009-12-09 | 山东法因数控机械股份有限公司 | Chuck for loading and clamping cylinder workpieces |
| CN102451923A (en) * | 2010-11-02 | 2012-05-16 | 唐淑娟 | Split type inverted wedge type power chuck for machine |
| CN202317093U (en) * | 2011-09-15 | 2012-07-11 | 吴红 | Chuck for machine tool |
| CN203390329U (en) * | 2013-08-09 | 2014-01-15 | 合肥长源液压股份有限公司 | Hydraulic gear shaping clamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544278A (en) * | 2018-06-15 | 2018-09-18 | 中原内配集团股份有限公司 | A kind of multi-dot hydraulic pressure clamps, self-centering type cylindrical work fixture |
| CN108544278B (en) * | 2018-06-15 | 2023-10-03 | 中原内配集团股份有限公司 | Multi-point hydraulic clamping and self-centering cylindrical workpiece clamp |
| CN114260519A (en) * | 2021-11-23 | 2022-04-01 | 郑建平 | Gear machining apparatus |
| CN114260519B (en) * | 2021-11-23 | 2023-08-11 | 青岛业鸿机械工贸有限公司 | Gear machining equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103394771B (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201208704Y (en) | Clamper for lathe | |
| CN105618803A (en) | Expanding clamp for turning thin-walled part | |
| CN104259900A (en) | Thin-walled cylindrical part end face machining fixture | |
| CN107234474B (en) | Be used for bevel gear action wheel terminal surface drive finish turning anchor clamps | |
| CN202591449U (en) | Clamping device for spinning | |
| CN104001936A (en) | Uniform-section ultra-thin-wall bearing ring turning machining technique | |
| CN103394771B (en) | Hydraulic pressure gear-shaping clamp | |
| CN202278112U (en) | Main shaft clamping mechanism | |
| CN203390329U (en) | Hydraulic gear shaping clamp | |
| CN203380387U (en) | Fine turning fixture | |
| CN202088012U (en) | Mechanical clamping spring collet for holes | |
| CN205096828U (en) | Gas turbine rotor attachment bolt preloading device | |
| CN205074848U (en) | Multistage high accuracy clamping device | |
| CN204262835U (en) | A kind of flange frock | |
| CN205009025U (en) | Servo piston axial hole honing frock | |
| CN204621589U (en) | Thin-walled gear ring part finish turning anti-deformation Pneumatic clamping frock | |
| CN203918488U (en) | A kind of hydraulically operated fixture for the processing of thin wall cylindrical part | |
| CN203541760U (en) | Expansion sleeve type gear grinding clamp | |
| CN208584205U (en) | A kind of spray inner cavity positioning device of cone shell workpiece lathe processing | |
| CN102632402B (en) | Square disassembly tapered sleeve air cylinder | |
| CN212043586U (en) | Numerical control machine tool clamp for shaft sleeve production | |
| CN216065573U (en) | Special fixture for milling machine machining | |
| CN203945258U (en) | Grinding machine hydraulic pressure is embraced formula fixture | |
| CN210388350U (en) | Shaft sleeve clamp for producing speed reducer | |
| CN103801949A (en) | Jig for machining inclined hole in cylindrical face |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |