CN106808031B - A kind of high-precision quick change axis gear grinding clamp - Google Patents
A kind of high-precision quick change axis gear grinding clamp Download PDFInfo
- Publication number
- CN106808031B CN106808031B CN201710115052.7A CN201710115052A CN106808031B CN 106808031 B CN106808031 B CN 106808031B CN 201710115052 A CN201710115052 A CN 201710115052A CN 106808031 B CN106808031 B CN 106808031B
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- China
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- piston
- pedestal
- connecting flange
- pull rod
- ringfeder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a kind of high-precision quick change axis gear grinding clamps, including the connecting flange being connected on lathe, piston is provided on the upside of connecting flange, it is connected with pull rod on the upside of piston, is connected with ringfeder on the upside of pull rod, is equipped in the inner space of piston and pull rod top for making workpiece feel relieved, top bottom is equipped with blind hole, top spring is equipped in blind hole, the bottom of top spring is equipped with end cap, and end cap is fixed with connecting flange；The outer sheath of piston and pull rod is equipped with pedestal, and pedestal is fixed with connecting flange, and the outer sheath of ringfeder is equipped with support base, and support base is fixed with pedestal, and connecting flange is equipped with the flange oil circuit for being connected to gap between piston and connecting flange.The present invention is able to achieve fast quick change and produces, and improves while guaranteeing clamping precision in favor of the high-accuracy grinding tooth clamper of manipulator loading and unloading with center guidance live center and change production efficiency, breaks foreign technology monopolization, reduces fixture cost.
Description
Technical field
The present invention relates to transmission countershaft fields, and in particular to a kind of high-precision quick change axis gear grinding clamp.
Background technique
State's outer shaft class gear grinding clamp is mostly that static pressure rises wall construction at present, and the structural clips manufacturing technology difficulty is high, substantially quilt
Foreign countries' monopolization, fixture is at high cost, singly covers at 100,000 yuan or more.Although the structural clips clamping accuracy is high but tensioner gap is small, about
It is the 1/1000 of clamping diameter, my company's axial workpiece clamps diameter in 35-45mm, and fixture tensioner gap only has 0.035-
0.045mm, this requires the controls of the dimensional tolerance of part positioning datum within 0.025mm, and otherwise part can be not clamping or be put
Do not enter, and fixture changes necessary integral demounting replacement when production, it is time-consuming and laborious.
There are the fluting ringfeder structural clips of part of the manufacturer's application cooperation conical surface in the country, and centralized positioning uses back dead centre, the knot
Structure fixture tensioner gap is in 0.15-0.25mm, to the dimensional tolerance relative loose of part positioning datum, but the fixture tensioner gap
Still limited, poor universality quick change can not produce fastly, and center back dead centre can not guide part loading and unloading, loading and unloading manipulator
Repeating motion precision is generally lower, and in long-term repeated clamping, positional shift can make part and fixture positioning hole misplace, Bu Nengzheng
True clamping, lathe alarm automated production stop, and seriously affect processing efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of high-precision quick change axis gear grinding clamps, to overcome the above-mentioned prior art to exist
Defect, the present invention is able to achieve fast quick change and produces, and with center guidance live center in favor of the high-accuracy grinding of manipulator loading and unloading
Tooth clamper improves while guaranteeing clamping precision and changes production efficiency, breaks foreign technology monopolization, reduces fixture cost.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of high-precision quick change axis gear grinding clamp, including the connecting flange being connected on lathe, the upside of connecting flange
It is provided with piston, pull rod is connected on the upside of piston, is connected with ringfeder on the upside of pull rod, is set in the inner space of piston and pull rod
Have for making the top of workpiece centering, top bottom is equipped with blind hole, is equipped with top spring in blind hole, the bottom of top spring is set
There is end cap, and end cap is fixed with connecting flange；
The outer sheath of piston and pull rod is equipped with pedestal, and pedestal is fixed with connecting flange, and the outer sheath of ringfeder is equipped with support
Seat, and support base is fixed with pedestal, connecting flange is equipped with the flange oil circuit for being connected to gap between piston and connecting flange.
Further, several reset springs that can push down on piston, the reset bullet are equipped between pedestal and piston
Spring is arranged in the spring blind hole of pedestal lower part, and the drift of reset spring is greater than the depth of spring blind hole.
Further, the straight pin for preventing piston rotation, one end of the straight pin are equipped between pedestal and piston
It is fixed on piston, the other end is cooperatively connected with the pin hole that pedestal lower part is arranged in.
Further, the upside of pull rod is connected with ringfeder by spline.
Further, ringfeder is equipped with the first limiting slot, interts first for being equipped with and cooperating with the first limiting slot on support base
Stop screw.
Further, pull rod is equipped with the second limiting slot, and the second limit for being equipped with and cooperating with the second limiting slot is interted on pedestal
Position screw.
Further, top lower end is equipped with outside first annular protrusion, and the middle part of piston is equipped with the second inside ring
Shape protrusion, the first annular protrusion and the second annular projection cooperate to limit top position.
Further, the ringfeder includes several diaphragms, and is bonded between adjacent diaphragms by elastic rubber.
Further, it is equipped with the first O-ring between the top and pedestal of piston, it is O-shaped that second is equipped between pull rod and pedestal
Circle is equipped with third O-ring between the middle part and pedestal of piston, the 4th O-ring is equipped between the lower part and connecting flange of piston, even
The 5th O-ring is equipped between acting flange and pedestal.
Further, pedestal is connect with connecting flange by several first hexagon socket cap head screws, support base and pedestal
It is connected by several second hexagon socket cap head screws, end cap and connecting flange are connected by several third hexagon socket cap head screws
It connects, connecting flange is connect with lathe by several 4th hexagon socket cap head screws.
Compared with prior art, the invention has the following beneficial technical effects:
The present invention by center it is top be designed as it is top by top spring-supported active type, realize part positioning outer circle into
Enter first by top centering before fixture, when lathe tail centre pushes, guidance part enters location hole, guarantees that part is accurately positioned, solution
Certainly current gear grinding clamp guides top, part and the easy problem of misalignment of fixture hole, to part positioning datum required precision without loading and unloading
More loose, more conducively manipulator automatic loading/unloading, the processing cost of preceding working procedure reduce；In addition the present invention have more versatility and
Fast transsexual, process non-cutting time is greatly reduced.
Further, by the way that reset spring is arranged, when executing fixture release movement, reset spring pushes down on piston,
It is detached from ringfeder and support base by linkage, to unclamp workpiece.
Further, by the way that straight pin is arranged, prevent piston from generating rotation when moving up and down.
Further, the upside of pull rod connects ringfeder by spline, only ringfeder need to rotate by a certain angle to can be realized and rise
Set with the connection of pull rod and separate, to realize fast quick change production, different-diameter series parts only need to change ringfeder, and cost is big
Width reduces.
Further, ringfeder is equipped with the first limiting slot, and pull rod is equipped with the second limiting slot, passes through the first limit spiral shell respectively
Nail and the second stop screw limit ringfeder and pull rod, not only move up and down position to it and limit, while preventing it
Rotation.
Further, there is first annular protrusion in top lower end, when top release workpiece, move after certain stroke with piston
Second annular projection of inner hole is bonded, and moves up top stopping.
Further, ringfeder includes several diaphragms, and is bonded between adjacent diaphragms by elastic rubber, using this bonding
Formula ringfeder makes clamp gap be increased to 1mm, it can be achieved that positioning the general of diameter part within 1mm by 0.04.
Further, pass through the airtightness of setting more a tooling of O-ring increase.
For synthesis, the gear grinding clamp that the present invention designs is looser to part positioning datum required precision, preceding working procedure
Processing cost reduce；More versatility and fast transsexual, process non-cutting time is greatly reduced；The top vectoring aircraft of present clip
Structure is more conducive to manipulator automatic loading/unloading；The current axial workpiece of my company shares 12 diameter series, uses present invention design folder
2 sets of pedestal of tool, ringfeder 5 can all standing, 6000 yuan of present clip pedestal unit price, ringfeder is 1000 yuan monovalent, inlet fixture
A whole set of 110,000 yuan of unit price, can save fixture and disposably put into: 12 × 11- (2 × 0.6+5 × 0.1)=130.3 ten thousand yuan and save significantly
About cost.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the A-A view of Fig. 1；
Fig. 3 is the B-B view of Fig. 1；
Fig. 4 is the C-C partial view of Fig. 1；
Fig. 5 is pull rod schematic diagram, wherein (a) is cross-sectional view；It (b) is left view；It (c) is perspective view；
Fig. 6 is ringfeder structural schematic diagram, wherein (a) is top view；It (b) is the A-A view of (a)；It (c) is the limit on ringfeder
Position hole partial schematic diagram；
Fig. 7 is schematic diagram of base structure, wherein (a) is top view；It (b) is the B-B direction cross-sectional view of (a)；It (c) is (a)
Sectional view along A-A；It (d) is the C-C direction view of (a).
Wherein, 1, connecting flange；2, pedestal；3, the first hexagon socket cap head screw；4, piston；5, the first O-ring；6, it draws
Bar；7, support base；8, the second hexagon socket cap head screw；9, ringfeder；10, workpiece；11, top；12, the first stop screw；13,
Second O-ring；14, top spring；15, reset spring；16, third O-ring；17, hydraulic plug；18, hexagonal cylindrical in third
Head screw；19, end cap；20, the 4th O-ring；21, the 4th hexagon socket cap head screw；22, straight pin；23, the second limit spiral shell
Nail；24, flange oil circuit；25, elastic rubber；26, annular groove；27, oil leak hole；28, first row stomata；29, second row stomata.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
Referring to Fig. 1 to Fig. 6, a kind of high-precision quick change axis gear grinding clamp, including the connecting flange 1 being connected on lathe,
The upside of connecting flange 1 is provided with piston 4, and the upside of piston 4 is connected with pull rod 6, and the upside of pull rod 6 is connected with by spline rises
Set 9, the ringfeder 9 include several diaphragms, and are bonded between adjacent diaphragms by elastic rubber 25, the inside of piston 4 and pull rod 6
It is equipped with top 11, top 11 lower end for making workpiece 10 feel relieved in space and is equipped with outside first annular protrusion, piston 4
Middle part is equipped with the second inside annular projection, and the first annular protrusion and the second annular projection cooperate to limit top 11
Position, top 11 bottom is equipped with blind hole, top spring 14 is equipped in blind hole, and the bottom of top spring 14 is equipped with end cap 19,
And end cap 19 and connecting flange 1 are fixed；
The outer sheath of piston 4 and pull rod 6 is equipped with it of pedestal 2, and pedestal 2 and the fixation of connecting flange 1, pedestal 2 and piston 4
Between be equipped with several reset springs 15 that can push down on piston 4, the spring that 2 lower part of pedestal is arranged in the reset spring 15 is blind
Kong Zhong, and the drift of reset spring 15 is greater than the depth of spring blind hole, is additionally provided between pedestal 2 and piston 4 for preventing
Only the straight pin 22 that piston 4 rotates, one end of the straight pin 22 are fixed on piston 4, and the other end and setting are in 2 lower part of pedestal
Pin hole be cooperatively connected, the outer sheath of ringfeder 9 is equipped with support base 7, and support base 7 and pedestal 2 are fixed, and ringfeder 9 is equipped with first
Limiting slot, the first stop screw 12 for being equipped with and cooperate with the first limiting slot is interted on support base 7, and pull rod 6 is equipped with second and limits
Slot, interts the second stop screw 23 for being equipped with and cooperate with the second limiting slot on pedestal 2, and connecting flange 1 is equipped with being connected to piston 4
The end of the flange oil circuit 24 in gap between connecting flange 1, flange oil circuit 24 is equipped with hydraulic plug 17.
There is annular groove 26 on the upper surface of pedestal 2,26 bottom of annular groove is evenly distributed with several oil leak holes 27, makes to enter from the outside and rise
Greasy dirt and iron filings in set can be discharged in time.It is provided with first row stomata 28 on pedestal 2, makes close between pull rod 6, pedestal 2 and piston 4
The air closed is discharged in time.It is also provided with second row stomata 29 on pedestal 2, arranges air closed between pedestal 2 and piston 4 in time
Out.
It is equipped with the first O-ring 5 between the top and pedestal 2 of piston 4, the second O-ring 13 is equipped between pull rod 6 and pedestal 2,
It is equipped with third O-ring 16 between the middle part and pedestal 2 of piston 4, the 4th O-ring is equipped between the lower part and connecting flange 1 of piston 4
20, the 5th O-ring is equipped between connecting flange 1 and pedestal 2；Pedestal 2 and connecting flange 1 pass through hexagonal cylindrical head in several first
Screw 3 connects, and support base 7 is connect with pedestal 2 by several second hexagon socket cap head screws 8, and end cap 19 and connecting flange 1 are logical
It crosses several third hexagon socket cap head screws 18 to connect, connecting flange 1 and lathe pass through several 4th hexagon socket cap head screws
21 connections.
Implementation process of the present invention is described further with reference to the accompanying drawing:
1) pinching action of fixture:
When lathe executes clamping process order, the hydraulic oil pressurization of lathe and fixture interface, oil passes through fixture connecting flange 1
On flange oil circuit 24 enter the closed chamber that piston 4 and connecting flange 1 are formed, intracavitary oil pressure, which increases, pushes piston 4 to move upwards,
To push connected pull rod 6, piston 4 is to be threadedly coupled with pull rod 6, and pull rod 6 then pushes ringfeder 9 to move upwards,
9 conical surface of ringfeder by 7 inner conical surface of support base due to being limited to contract, to clamp workpiece 10.
2) the release movement of fixture:
When lathe executes release program command, the hydraulic oil pressure release of lathe and fixture interface, reset spring 15 pushes piston 4
It moves downward, the hydraulic oil in piston 4 and 1 closed chamber of connecting flange flows back to lathe fuel tank by flange oil circuit 24, and piston 4 pulls
Pull rod 6 moves downward, and pull rod 6 pulls ringfeder 9 to move downward, and 9 conical surface of ringfeder and 7 inner conical surface of support base are detached from, since ringfeder 9 is each
It is filled with elastic rubber 25 between a diaphragm, so that ringfeder 9 is expanded to free size state, 9 diameter of bore of ringfeder becomes larger, thus loose
Go into operation part 10.
3) the top guidance movement in center:
When not being put into part, top 11 are boosted fixture upwards by top spring 14, and top 11 upper end tip is higher by support
The upper surface of seat 7, therefore workpiece 10 is when being put into fixture hole, first centre bore and top 11 upper end tip contacts, make workpiece
10 centering, then lathe tail centre enters 10 other end centre bore of workpiece and pushes down on workpiece, and top spring 14 is compressed, and is made
Entrance 9 inner hole of ringfeder of workpiece 10 without acceptance of persons.When fixture unclamps disassembly workpiece 10, tailstock is moved up on lathe, top bullet
Spring 14 is released upwards by top 11, so that workpiece 10 releases fixture, there is first annular protrusion in top 11 lower end, moves certain stroke
It is bonded afterwards with the second annular projection of 4 inner hole of piston, makes top 11 to stop moving up.
4) quick-replaceable of ringfeder:
For the parts fixation of different-diameter series, when replacing ringfeder 9, first the first stop screw 12 is screwed out, then pine
The second hexagon socket cap head screw 8 is opened, support base 7 is removed, 9 certain angle of ringfeder is gently rotated, makes in the inner hole spline of ringfeder 9
Protrusion part is detached from from the spline of pull rod 6, to remove ringfeder 9.9 spline of the ringfeder protrusion part alignment that will be replaced is drawn
The spline of bar 6 simultaneously gently rotates by a certain angle, and snaps into ringfeder 9 in spline, loads onto support base 7, by the first stop screw
12 screw in and it is micro- turn in the first limiting slot that ringfeder 9 makes the first stop screw 12 enter ringfeder 9, by hexagonal cylindrical head spiral shell in second
Nail 8 tightens, and realizes the quick-replaceable of ringfeder 9.
Claims (3)
1. a kind of high-precision quick change axis gear grinding clamp, which is characterized in that including the connecting flange (1) being connected on lathe, even
It is provided with piston (4), is connected on the upside of piston (4) pull rod (6) on the upside of acting flange (1), pull rod passes through spline on the upside of (6)
It is connected with ringfeder (9), the ringfeder (9) includes several diaphragms, and is bonded between adjacent diaphragms by elastic rubber (25), ringfeder
(9) it is equipped with the first limiting slot, interts the first stop screw (12) for being equipped with and cooperating with the first limiting slot on support base (7), draws
Bar (6) is equipped with the second limiting slot, and the second stop screw (23) for being equipped with and cooperating with the second limiting slot is interted on pedestal (2), living
Top (11) for making workpiece (10) to feel relieved are equipped in the inner space of plug (4) and pull rod (6), the bottom of top (11) is equipped with
Blind hole is equipped with top spring (14) in blind hole, and the bottom of top spring (14) is equipped with end cap (19), and end cap (19) and connection method
Blue (1) is fixed, and the lower end of top (11) is equipped with outside first annular protrusion, and the middle part of piston (4) is equipped with the second inside ring
Shape protrusion, the first annular protrusion and the second annular projection cooperate to limit the position of top (11)；
The outer sheath of piston (4) and pull rod (6) is equipped with pedestal (2), and pedestal (2) and connecting flange (1) are fixed, ringfeder (9)
Outer sheath is equipped with support base (7), and support base (7) and pedestal (2) are fixed, connecting flange (1) be equipped be connected to piston (4) and
The flange oil circuit (24) in gap between connecting flange (1) can push down on work equipped with several between pedestal (2) and piston (4)
The reset spring (15) of (4) is filled in, the reset spring (15) is arranged in the spring blind hole of pedestal (2) lower part, and reset spring
(15) drift is greater than the depth of spring blind hole；
Pedestal (2) is connect with connecting flange (1) by several first hexagon socket cap head screws (3), support base (7) and pedestal
(2) it is connected by several second hexagon socket cap head screws (8), end cap (19) and connecting flange (1) pass through in several thirds six
Angle fillister head screw (18) connection, connecting flange (1) are connect with lathe by several 4th hexagon socket cap head screws (21).
2. a kind of high-precision quick change axis gear grinding clamp according to claim 1, which is characterized in that pedestal (2) and piston
(4) straight pin (22) for preventing piston (4) from rotating is equipped between, one end of the straight pin (22) is fixed on piston (4)
On, the pin hole of the other end and setting in pedestal (2) lower part is cooperatively connected.
3. a kind of high-precision quick change axis gear grinding clamp according to claim 1, which is characterized in that the top of piston (4)
The first O-ring (5) are equipped between pedestal (2), are equipped with the second O-ring (13) between pull rod (6) and pedestal (2), piston (4)
Third O-ring (16) are equipped between middle part and pedestal (2), it is O-shaped that the 4th is equipped between the lower part and connecting flange (1) of piston (4)
It encloses (20), the 5th O-ring is equipped between connecting flange (1) and pedestal (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115052.7A CN106808031B (en) | 2017-02-28 | 2017-02-28 | A kind of high-precision quick change axis gear grinding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115052.7A CN106808031B (en) | 2017-02-28 | 2017-02-28 | A kind of high-precision quick change axis gear grinding clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106808031A CN106808031A (en) | 2017-06-09 |
| CN106808031B true CN106808031B (en) | 2019-08-16 |
Family
ID=59114478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710115052.7A Active CN106808031B (en) | 2017-02-28 | 2017-02-28 | A kind of high-precision quick change axis gear grinding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106808031B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262082A (en) * | 2018-10-19 | 2019-01-25 | 陕西法士特齿轮有限责任公司 | A kind of conical surface positioning quick-changing type axis gear grinding clamp |
| CN109454295B (en) * | 2018-11-19 | 2024-03-12 | 宝鸡法士特齿轮有限责任公司 | Gear grinding clamp for machining shaft parts with holes and use method of gear grinding clamp |
| CN109262083B (en) * | 2018-12-03 | 2022-10-25 | 浙江巨跃齿轮有限公司 | Hydraulic expansion clamp |
| CN109702235B (en) * | 2019-02-28 | 2024-03-08 | 吉林省云动力智能装备制造有限公司 | Hydraulic expansion sleeve clamping device capable of realizing workpiece compression |
| CN109877621A (en) * | 2019-03-18 | 2019-06-14 | 西安法士特汽车传动有限公司 | A kind of simple quick change hydraulically operated fixture of plate gear milling |
| CN112170982B (en) * | 2020-09-23 | 2023-05-02 | 重庆蓝黛传动机械有限公司 | Gear grinding clamp for intermediate shaft |
| CN114227331B (en) * | 2021-12-15 | 2024-03-15 | 广州市锐美汽车零部件有限公司 | Shaft finish machining fixture and shaft machining machine tool |
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