CN103394771B - Hydraulic pressure gear-shaping clamp - Google Patents
Hydraulic pressure gear-shaping clamp Download PDFInfo
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- CN103394771B CN103394771B CN201310348034.5A CN201310348034A CN103394771B CN 103394771 B CN103394771 B CN 103394771B CN 201310348034 A CN201310348034 A CN 201310348034A CN 103394771 B CN103394771 B CN 103394771B
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- pull bar
- hollow shaft
- wedge block
- cylindrical cavity
- chuck body
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Abstract
The invention discloses a kind of hydraulic pressure gear-shaping clamp, the centre of its chuck body is provided with cylindrical cavity, is provided with the hollow shaft coaxial with cylindrical cavity in cylindrical cavity; Be provided with pull bar in the inner chamber of hollow shaft, the outer peripheral face of pull bar includes thread segment, by nut, pull bar and hollow shaft are fixed together; Hollow shaft and pull bar can the axis along cylindrical cavity in cylindrical cavity move up and down; Pull bar lower end connects with hydraulic cylinder piston rod; The outer peripheral face of hollow shaft is distributed with equably three T-slots, is embedded with wedge block in T-slot, be provided with T-shaped block on wedge block, claw is fixedly connected by T-shaped block and trip bolt and wedge block 1; Mating surface between claw and wedge block is profile of tooth mating surface.Hydraulic pressure gear-shaping clamp of the present invention, is particularly useful for multi items, different size shaft-like workpiece Gear Shaping, has that convenient mounting and clamping is quick, highly versatile, centering precision are high, reliable clamping, an advantage such as can to enhance productivity.<!--1-->
Description
Technical field
The present invention relates to a kind of machining fixture, especially a kind of hydraulic pressure gear-shaping clamp being applicable to multi items, different size shaft-like workpiece Gear Shaping.
Background technology
Shaft-like workpiece Gear Shaping, generally using its cylindrical as positioning datum, 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 to locate and clamp, this kind of tool structure is simple, but needs to make plurality of specifications inner core elastic jacket, poor universality according to different work piece size, comparatively inconvenient when multi items, small lot batch manufacture; In addition adopt scroll chuck in addition, with hand-operated clamping, but scroll chuck repetitive positioning accuracy is low, and due to the restriction of work top, spanner limited space, operation inconvenience, working (machining) efficiency is lower.
Summary of the invention
The present invention is for avoiding the weak point that exists in above-mentioned prior art, provides that a kind of highly versatile, centering precision are high, easy to adjust, reliable clamping, action hydraulic pressure gear-shaping clamp efficiently.
The present invention be technical solution problem by the following technical solutions.
Hydraulic pressure gear-shaping clamp, its design feature is, comprises chuck body, hollow shaft, wedge block, T-shaped block, claw and pull bar; The centre of the described chuck body thickness direction be provided with along described chuck body penetrates the stair-stepping cylindrical cavity of described chuck body, is provided with the hollow shaft coaxial with described cylindrical cavity in described cylindrical cavity; Be provided with described pull bar in the inner chamber of described hollow shaft, the outer peripheral face of described pull bar includes thread segment, by nut, described hollow shaft and described pull bar are fixed together; Described hollow shaft and described pull bar can move up and down along the axis of described cylindrical cavity in described cylindrical cavity; The outer peripheral face of described hollow shaft is distributed with equably three T-slots, is embedded with described wedge block in described T-slot, be provided with described T-shaped block on described wedge block, described claw is fixedly connected by T-shaped block and trip bolt and wedge block; Mating surface between described claw and described wedge block is profile of tooth mating surface.
The design feature of hydraulic pressure gear-shaping clamp of the present invention is also:
By sealing ring, seal cover, sealing ring gland seal between the upper end external diameter of described pull bar and chuck body, 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 chuck body endoporus, with seal and seal cover, sealing ring gland seal between upper end external diameter and chuck body, prevents chip 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, divides to hold workpiece spindle extending portion; Hollow shaft is axially evenly equipped with three become certain inclination angle T-slot with vertical direction, and this T-slot matches with wedge block; Claw and wedge block mating surface are comb shape tooth, the position of adjustable claw on wedge block, and to adapt to different size clamping workpiece needs, claw is fixed by T-shaped block and trip bolt and wedge block.When cylinder piston rod stretches, pull bar also stretches with piston rod and drives hollow shaft to move up and down, and forces wedge block to produce centrifugal or centripetal motion, thus makes claw realize loosening or clamping.
The feature of hydraulic pressure gear-shaping clamp of the present invention mainly contains:
1) pull bar hollow-core construction is adopted, and design with seal and seal cover, sealing ring gland seal between pull bar external diameter and chuck body, major axis can be adapted to and stretch workpiece gear shaping needs, avoid chip to enter in pull bar and chuck body gap, affect pull bar motion, reduce frock service life.
2) adopt wedge type power chuck clamping, highly versatile, centering precision be high, reliable clamping, easy to adjust;
3) adopt hydraulic circuit to control, handling are quick, reduce labour intensity, enhance productivity.
Hydraulic pressure gear-shaping clamp of the present invention, is particularly useful for multi items, different size shaft-like workpiece Gear Shaping, has that convenient mounting and clamping is quick, highly versatile, centering precision are high, reliable clamping, an advantage such as can to enhance productivity.
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 sectional view of wherein a kind of work piece of hydraulic pressure gear-shaping clamp of the present invention.
Fig. 4 is the sectional 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, 2T shape block, 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 by way of detailed description of the invention, and the invention will be further described by reference to the accompanying drawings.
Detailed description of the invention
See accompanying drawing 1 ~ accompanying drawing 4, hydraulic pressure gear-shaping clamp comprises chuck body 8, hollow shaft 7, wedge block 1, T-shaped block 2, claw 3 and pull bar 4; The centre of described chuck body 8 thickness direction be provided with along described chuck body 8 penetrates the stair-stepping cylindrical cavity 801 of described chuck body 8, is provided with the hollow shaft 7 coaxial with described cylindrical cavity 801 in described cylindrical cavity 801; Be provided with described pull bar 4 in the inner chamber of described hollow shaft 7, the outer peripheral face of described pull bar 4 includes 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 move up and down along the axis of described cylindrical cavity 801 in described cylindrical cavity 801; The outer peripheral face of described hollow shaft 7 is distributed with equably three T-slots, described wedge block 1 is embedded with in described T-slot, be provided with described T-shaped block 2 on described wedge block 1, described claw 3 is fixedly connected with wedge block 1 by T-shaped block 2 and trip bolt 10; Mating surface 13 between described claw 3 and described wedge block 1 is profile of tooth mating surface.
Sealed by sealing ring 9, seal cover 5, sealing ring gland 6 between the upper end external diameter of described pull bar 4 and chuck body 8, 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 diameter 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 to be made up of chuck body 8, hollow shaft 7, wedge block 1, T-shaped block 2, claw 3, pull bar 4, seal cover 6, sealing ring gland 5, hydraulic circuit etc.Pull bar 4 is fixed by fastening screw nut and hollow shaft 7, can move up and down along chuck body 8 endoporus, seals, prevent chip from entering in pull bar 4 and chuck body 8 gap between upper end external diameter and chuck body 8 with seal and seal cover 6, sealing ring gland 5; Lower end connects with hydraulic cylinder piston rod, and pull bar 4 is Step Shaft, hollow-core construction, to hold the shaft extension part of processed shaft-like workpiece 12; Hollow shaft 7 is axially evenly equipped with three become certain inclination angle T-slot with vertical direction, and this T-slot matches with wedge block 1; Claw 3 and wedge block 1 mating surface are the comb shape flank of tooth, adjust the position of claw 3 on wedge block 1 by the position adjusting cooperating teeth, and to adapt to different size workpiece 12 clamping needs, claw 3 passes through T-shaped block 2 and trip bolt and wedge block 1 to be fixed.When cylinder piston rod stretches, pull bar 4 also stretches with piston rod and drives hollow shaft 7 to move up and down, and forces wedge block 1 to produce centrifugal or centripetal motion, thus makes 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 moves along the radial direction of described hollow shaft to the axis direction of hollow shaft, so the distance between wedge block reduces, distance between claw also reduces, and claw promptly.Otherwise when hydraulic cylinder pulls pull bar to move upward, the distance between three wedge blocks increases, and wedge block moves to the axis direction away from hollow shaft, and the distance between wedge block increases, and the distance between claw also increases, and claw loosens.
The utility model fixture is applicable to multi items, 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, effectively ensure that quality and the working (machining) efficiency of workpiece.
Described pull bar is Step Shaft, hollow-core construction, to hold workpiece spindle extending portion to divide, with seal and seal cap sealing between pull bar upper end external diameter and chuck body, pull bar lower end connects with hydraulic cylinder piston rod, in the middle part of pull bar, external diameter car has screw thread, is fixed by fastening screw nut and hollow shaft.The outer peripheral face of described hollow shaft is axially being evenly equipped with three become certain inclination angle T-slot with vertical direction, and T-slot is outward-dipping from top to down, namely tilts to the axis direction away from described hollow shaft from top to down.This T-slot matches with wedge block.Described claw and wedge block mating surface are comb shape tooth, the position of adjustable claw on wedge block, and to adapt to different size clamping workpiece needs, claw is fixed by T-shaped block and trip bolt and wedge block.When cylinder piston rod stretches, pull bar also stretches with piston rod and drives hollow shaft to move up and down, and forces wedge block to produce centrifugal or centripetal motion, thus makes claw realize loosening or clamping.
Frock of the present invention, pull bar is hollow-core construction, and with seal and seal cover, sealing ring gland seal between pull bar external diameter and chuck body, long-axle workpieces 12 gear shaping needs can be adapted to, avoid again chip to enter in pull bar and chuck body gap, affect pull bar motion, reduce frock service life; Adopt wedge type power chuck clamping and hydraulic circuit to control, highly versatile, centering precision be high, reliable clamping, easy to adjust, action is quick, and labour intensity is low, and production efficiency is high.
Claims (4)
1. hydraulic pressure gear-shaping clamp, is characterized in that, comprises chuck body (8), hollow shaft (7), wedge block (1), T-shaped block (2), claw (3) and pull bar (4); The centre of described chuck body (8) thickness direction be provided with along described chuck body (8) penetrates the stair-stepping cylindrical cavity (801) of described chuck body (8), is provided with the hollow shaft (7) coaxial with described cylindrical cavity (801) in described cylindrical cavity (801); Described pull bar (4) is provided with in the inner chamber of described hollow shaft (7), the outer peripheral face of described pull bar (4) includes thread segment, by nut (11), described hollow shaft (7) and described pull bar (4) is fixed together; Described hollow shaft (7) and described pull bar (4) can move up and down along the axis of described cylindrical cavity (801) in described cylindrical cavity (801); The outer peripheral face of described hollow shaft (7) is distributed with equably three T-slots, described wedge block (1) is embedded with in described T-slot, be provided with described T-shaped block (2) on described wedge block (1), described claw (3) is fixedly connected with wedge block (1) by T-shaped block (2) and trip bolt (10); Mating surface (13) between described claw (3) and described wedge block (1) is profile of tooth mating surface;
Pull bar is hollow-core construction, sealed by sealing ring (9), seal cover (5), sealing ring gland (6) between the upper end external diameter of described pull bar (4) and chuck body (8), the lower end of pull bar (4) and the piston rod of hydraulic jack are fixedly connected.
2. hydraulic pressure gear-shaping clamp according to claim 1, is characterized in that, described sealing ring (9) is rubber seal.
3. hydraulic pressure gear-shaping clamp according to claim 1 and 2, 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.
4. hydraulic pressure gear-shaping clamp according to claim 1 and 2, 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 CN103394771A (en) | 2013-11-20 |
| CN103394771B true CN103394771B (en) | 2016-04-06 |
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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 |
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| Country | Link |
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| CN (1) | CN103394771B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111730081B (en) * | 2020-07-28 | 2024-06-11 | 北京博鲁斯潘精密机床有限公司 | Mixed line fan-shaped fixture |
| CN114260519B (en) * | 2021-11-23 | 2023-08-11 | 青岛业鸿机械工贸有限公司 | Gear machining equipment |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4929514B2 (en) * | 2005-08-31 | 2012-05-09 | セイコーインスツル株式会社 | Chuck device |
-
2013
- 2013-08-09 CN CN201310348034.5A patent/CN103394771B/en active Active
Patent Citations (5)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103394771A (en) | 2013-11-20 |
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