CN104325333B - Tension-type fixture for machining piston - Google Patents
Tension-type fixture for machining piston Download PDFInfo
- Publication number
- CN104325333B CN104325333B CN201410517532.2A CN201410517532A CN104325333B CN 104325333 B CN104325333 B CN 104325333B CN 201410517532 A CN201410517532 A CN 201410517532A CN 104325333 B CN104325333 B CN 104325333B
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- China
- Prior art keywords
- pull rod
- wall
- connect
- clamp body
- axle sleeve
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a kind of tension-type fixtures for machining piston, including pull rod, spring, collet and the clamp body being connect with machine tool chief axis, the side of pull rod is slidably connected with groove, and spring one end is connect with bottom portion of groove, and the other end of spring and the end of pull rod connect；The outer cover of pull rod side is equipped with axle sleeve, and the other side outer cover of pull rod is equipped with the sliding sleeve being slidably connected with pull rod；Ladder set is arranged with outside axle sleeve, the outer wall of axle sleeve is connect with ladder set side inner thread, and the inner wall of axle sleeve is connect with pull rod internal screw thread, and the other side inner wall of ladder set is equipped with externally threaded threaded one end with clamp body and connect；Collet includes the T-shaped movable block that can enter pistons end strip-shaped hole, and the long side end of T-shaped movable block and the other end end of pull rod connect.The present invention overcomes when existing clamp piston, the defect that fixed effect is poor, workpiece blank utilization rate is low provides a kind of good fixing effect and cuts the high tension-type fixture for machining piston of blank utilization rate.
Description
Technical field
The invention belongs to clamp the device field of workpiece, and in particular to a kind of tension-type fixture for machining piston.
Background technique
Piston of automobile cans be compared to the central position of automobile engine, and extremely important status is accounted in engine start.
Piston of automobile is to drive crankshaft to rotate by connecting rod for bearing gas pressure, and by piston pin, top land or combustion chamber
Component part.General piston of automobile is divided into: diesel engine piston, piston of gasoline engine, universal piston three categories.
Common piston includes the piston only of tubular, as shown in Figure 1, the end face of piston only is equipped with strip-shaped hole 11, and
In the outer circle and inner hole of turning piston only, need to clamp piston only.It is used to fix in machinery manufacturing process when fixture
Processing object is allowed to occupy correct position, to receive the device of construction or testing.It is used to fix processing during machine-building
Object is allowed to occupy correct position, to receive the device of construction or testing.Common fixture includes elastic clamping jaw, elastic clip
Pawl can be placed on swelling in cylinder and fix, and also could be sandwiched in outside cylinder and clamped, and for piston blank workpiece, the end of piston only
Portion only offers strip-shaped hole, and the fixed contact area of swelling is small, and fixed effect is poor；If clamping outside blank, the integrity degree processed
Difference, since clamping jaw is clipped in outside blank, when processing, there can be processing blind area, it is low so as to cause utilization rate.
Summary of the invention
When the technical problem to be solved by the present invention is to be directed to existing clamp piston, fixed effect difference or workpiece hair
The low defect of base utilization rate provides a kind of good fixing effect and cuts the high tension-type fixture for machining piston of blank utilization rate.
In order to solve the above technical problem, the present invention provides following technical solutions: for the tension-type fixture of machining piston,
Including pull rod, spring, collet and the clamp body connecting with machine tool chief axis, one end of clamp body is axially embedded in main shaft, fixture
The other end of body is axially arranged with the groove for accommodating pull rod and spring, and side and the groove of pull rod be slidably connected, spring one end with it is recessed
Trench bottom connection, the other end of spring and the end of pull rod connect；Clamp body other end outer wall is equipped with external screw thread, pull rod side
Outer cover is equipped with axle sleeve, and the other side outer cover of pull rod is equipped with the sliding sleeve being slidably connected with pull rod；It is arranged with ladder set outside axle sleeve,
The outer wall of axle sleeve is connect with ladder set side inner thread, and the inner wall of axle sleeve is connect with pull rod internal screw thread, the other side of ladder set
Inner wall is equipped with externally threaded threaded one end with clamp body and connect；The tooth that the outer wall of sliding sleeve is equipped with external screw thread and engages with external screw thread
Wheel, gear are equipped with handle；Collet includes the T-shaped movable block that can enter pistons end strip-shaped hole, the long side of T-shaped movable block
End and the other end end of pull rod connect.
Using the tension-type fixture for machining piston of technical solution of the present invention, including pull rod, spring, collet and and machine
The clamp body of bed main shaft connection, one end of clamp body are axially embedded in main shaft, and the other end of clamp body is axially arranged with receiving and draws
The groove of bar and spring, side and the groove of pull rod are slidably connected, and spring one end is connect with bottom portion of groove, the other end of spring with
The end of pull rod connects；Clamp body is connect with lathe by ring flange, and pull rod slider pulling function, spring can rise in groove
Reset response.Clamp body other end outer wall is equipped with external screw thread, and the outer cover of pull rod side is equipped with axle sleeve, outside the other side of pull rod
It is arranged with the sliding sleeve being slidably connected with pull rod；Ladder set is arranged with outside axle sleeve, the outer wall and ladder of axle sleeve cover side inner thread
Connection, the inner wall of axle sleeve are connect with pull rod internal screw thread, and the other side inner wall and clamp body of ladder set are equipped with externally threaded one end spiral shell
Line connection；Axle sleeve plays pulling function, its impetus of sliding sleeve, and ladder set, axle sleeve and pull rod are to be threadedly coupled, and ladder covers another
Side is threadedly coupled with clamp body, and therefore, when ladder set is screwed onto, ladder covers the precession on clamp body, thus with moving axis
Precession is covered, and then drives pull rod axial movement.Collet includes the T-shaped movable block that can enter pistons end strip-shaped hole, T-shaped work
The long side end of motion block and the other end end of pull rod connect；Collet is set to tie rod end, and T-shaped movable block passes through pistons end
Strip-shaped hole protrude into internal piston, due to the precession by pull rod, then due to pull rod by axle sleeve generate axial movement, thus turn
The angle of T-shaped short side is moved, so that T-shaped short side is stuck in the inner wall of end in piston, and collet is strained and fixed by pull rod.
The outer wall of sliding sleeve be equipped with external screw thread and with external screw thread meshed gears, gear be equipped with handle；Handle can be pulled along the radial direction of gear
Fixed handle, gear are engaged with the external screw thread of sliding sleeve, so that sliding sleeve be driven to move, are slided over outside for utilization and are held out against piston end
Portion.
The working principle of the invention and having the beneficial effect that first protrudes into the short side of T-shaped movable block in piston, then to lathe
Major axes orientation precession multi-diameter shaft, multi-diameter shaft clamp body outer wall precession, due to multi-diameter shaft, axle sleeve and pull rod be screw thread connect
It connects, precession multi-diameter shaft, to drive axle sleeve precession, and then drives pull rod to major axes orientation precession, pull rod drives T-shaped movable block
It rotates and moves to major axes orientation, when the short side of T-shaped movable block offsets with pistons end inner wall, be further continued for precession, pull rod
Pull T-shaped movable block that it closely offsets with pistons end, to take up fixation；In addition, pulling hand to major axes orientation
Handle, handle band moving gear rotate, and gear is engaged with the external screw thread of sliding sleeve outer wall, its opposite effect power is given, thus by sliding sleeve
It is mobile to piston direction, until offseting with pistons end outer wall, pushed against from outside.T-shaped movable block is out of piston by it
It being strained and fixed, sliding sleeve is pushed against from piston exterior, dual fixation, and it is good to fix to clamp effect, and the outer bowlder of machining piston, due to
The fixture for not thering is interference to process outside blank workpiece, therefore can process completely, blank utilization rate is high, save the cost.It completes the process
Afterwards, when unclamping workpiece, opposite direction pulls handwheel, sliding sleeve is loosened piston, opposite direction precession ladder set, same reason adds
The reset response of upper spring makes T-shaped movable block loosen piston, then T-shaped movable block is taken from the strip-shaped hole of pistons end
Out.
Further, ladder set outer wall is equipped with handwheel.Handwheel can be rotated ladder set, easy to operate.
Further, the external screw thread meshed gears with sliding sleeve outer wall is equipped at least two, and equal around sliding sleeve axle center
Even setting.At least two gears just can guarantee the dynamics balance and stability that sliding sleeve is subject to, strong operability.
Further, there are two the external screw thread meshed gears with sliding sleeve outer wall is set, and the angle between two gears
For 180 degree.An each side gear, easy to operate and dynamics are moderate.
Further, the short side wall of the T-shaped movable block towards pistons end is equipped with one group of protrusion.So that T-shaped work
The frictional force of the contact surface of motion block and piston is big, increases tension effect.
Detailed description of the invention
Further explanation of the technical solution of the present invention with reference to the accompanying drawings and examples:
Fig. 1 is the end view of piston；
Status diagram when Fig. 2 is release workpiece of the present invention for the tension-type fixture embodiment of machining piston；
Fig. 3 is the status diagram when present invention clamps workpiece；
In figure: pull rod 1, spring 2, machine tool chief axis 3, clamp body 4, groove 5, axle sleeve 6, ladder cover 7, sliding sleeve 8, gear 9, hand
Handle 10, strip-shaped hole 11, T-shaped movable block 12, handwheel 13.
Specific embodiment
As shown in Fig. 2, the present invention is used for the tension-type fixture of machining piston, including pull rod 1, spring 2, collet and and lathe
The clamp body 4 that main shaft 3 connects, as shown in Figure 1, collet includes the T-shaped movable block 12, T that can enter pistons end strip-shaped hole 11
The long side end of font movable block 12 is connect with the other end end of pull rod 1, short side of the T-shaped movable block 12 towards pistons end
Wall is equipped with multiple protrusions；One end of clamp body 4 is elastic expansion sleeve, and elastic expansion sleeve insertion machine tool chief axis 3 is interior and is locked with ring flange,
The other end of clamp body 4 is axially arranged with the groove 5 for accommodating pull rod 1 and spring 2, and the side of pull rod 1 is located in groove 5 and connects
Touching, pull rod 1 slide in groove 5, and 2 one end of spring is fixedly connected with 5 bottom of groove, the other end of spring 2 and the end of pull rod 1
It is fixedly connected；4 other end outer wall of clamp body is equipped with external screw thread, and the outer cover of 1 side of pull rod is equipped with axle sleeve 6, is arranged with outside axle sleeve 6
Ladder set 7, ladder cover 7 outer walls and are installed with handwheel 13, and handwheel 13 covers there are two 7 outer walls set around ladder, and two are in 180 °；Axle sleeve
6 outer wall covers 7 side inner threads with ladder and connect, and the inner wall of axle sleeve 6 is connect with 1 internal screw thread of pull rod, the outer spiral shell of 1 outer wall of pull rod
Line is the smooth thread in end face, and the other side outer cover of pull rod 1 is equipped with the sliding sleeve 8 connecting with 1 contact slide of pull rod, sliding sleeve 8
It is slided with the external threaded surface of 1 outer wall of pull rod；The other side inner wall and clamp body 4 of ladder set 7 are equipped with externally threaded threaded one end
Connection；Two gears 9 that the outer wall of sliding sleeve 8 is equipped with external screw thread and engages with external screw thread, radial direction and the sliding sleeve 8 of gear 9
Axial direction is consistent, and two gears 9 are set to the two sides of sliding sleeve 8, and gear 9 is equipped with handle 10, and handle 10 is set to the end of gear 9
Center.
In the specific implementation process, as shown in figure 3, first machine tool chief axis 3 is inserted into the side by clamp body 4 with elastic expansion sleeve
It is interior and connected with ring flange, fixture is connect with machine tool chief axis 3, when clamping workpiece, first by the short end of T-shaped movable block 12 with
The strip-shaped hole 11 of workpiece is opposite and passes through strip-shaped hole 11, rotates handwheel 13, drives ladder set 7 on clamp body 4 to machine tool chief axis 3
Direction precession, 7 drive axle sleeve 6 of ladder set and pull rod 1 are slided in groove 5 to the movement of 3 direction of machine tool chief axis, thus rotation and axis
To mobile pull rod 1, and then T-shaped movable block 12 is rotated and moves axially, when T-shaped movable block 12 offsets with pistons end inner wall
When, pull rod 1 continues to tighten the short side of T-shaped movable block 12 and pistons end closely offsets, and its multiple protrusion increases its frictional force,
It avoids sliding, at this point, spring 2 is in compressive state, ladder set 7 is threadedly coupled with clamp body 4 and axle sleeve 6, avoids 7 pine of ladder set
It is dynamic.In addition, pulling handle 10 to machine tool chief axis 3, handle 10 is rotated with moving gear 9 to machine tool chief axis 3, thus by sliding sleeve 8 to work
Part direction is stirred, until the end of sliding sleeve 8 is offseted with pistons end, gear 9 and the cooperation of sliding sleeve 8 avoid its loosening, thus will
Piston takes up fixed out of piston and is held out against fixation from outside, so that fixation, then adds its outer circle
Work, after processing is completed, opposite direction rotation hand wheel 13 and handle 10, spring 2 resets pull rod 1, so that workpiece is unclamped, it is T-shaped
Movable block 12 takes out from strip-shaped hole 11.
For those skilled in the art, without departing from the structure of the invention, several changes can also be made
Shape and improvement, these also should be considered as protection scope of the present invention, these all will not influence the effect and patent that the present invention is implemented
Practicability.
Claims (5)
1. being used for the tension-type fixture of machining piston, it is characterised in that: connect including pull rod, spring, collet and with machine tool chief axis
Clamp body, one end of clamp body is axially embedded in main shaft, and one end of clamp body is elastic expansion sleeve, and elastic expansion sleeve is inserted into lathe
Locked in main shaft and with ring flange, the other end of clamp body is axially arranged with the groove for accommodating pull rod and spring, the side of pull rod with
Groove is slidably connected, and spring one end is connect with bottom portion of groove, and the other end of spring and the end of pull rod connect；The clamp body other end
Outer wall is equipped with external screw thread, and the outer cover of pull rod side is equipped with axle sleeve, and the other side outer cover of pull rod is equipped with to be slidably connected with pull rod
Sliding sleeve；Ladder set is arranged with outside axle sleeve, the outer wall of axle sleeve is connect with ladder set side inner thread, the inner wall and pull rod of axle sleeve
Internal screw thread connection, the other side inner wall of ladder set are equipped with externally threaded threaded one end with clamp body and connect；The outer wall of sliding sleeve is equipped with
External screw thread and with external screw thread meshed gears, gear be equipped with handle；Collet includes that can enter the T-shaped of pistons end strip-shaped hole
Movable block, the long side end of T-shaped movable block and the other end end of pull rod connect.
2. being used for the tension-type fixture of machining piston as described in claim 1, it is characterised in that: the ladder set outer wall is equipped with
Handwheel.
3. being used for the tension-type fixture of machining piston as described in claim 1, it is characterised in that: described outer with sliding sleeve outer wall
Screw thread meshed gears is equipped at least two, and is uniformly arranged around sliding sleeve axle center.
4. being used for the tension-type fixture of machining piston as claimed in claim 3, it is characterised in that: described outer with sliding sleeve outer wall
There are two screw thread meshed gears is set, and the angle between two gears is 180 degree.
5. such as any one of tension-type fixture for machining piston in claim 1-4, it is characterised in that: the T
The short side wall of font movable block towards pistons end is equipped with one group of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517532.2A CN104325333B (en) | 2014-09-30 | 2014-09-30 | Tension-type fixture for machining piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517532.2A CN104325333B (en) | 2014-09-30 | 2014-09-30 | Tension-type fixture for machining piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104325333A CN104325333A (en) | 2015-02-04 |
| CN104325333B true CN104325333B (en) | 2019-04-30 |
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ID=52400203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410517532.2A Active CN104325333B (en) | 2014-09-30 | 2014-09-30 | Tension-type fixture for machining piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325333B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI627647B (en) * | 2017-01-12 | 2018-06-21 | All Ring Tech Co Ltd | Fixture and method and device for using the same |
| CN116619184B (en) * | 2023-06-05 | 2024-02-06 | 台州沃特洁具股份有限公司 | Tap valve polishing grinding device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004018082U1 (en) * | 2004-03-22 | 2005-03-17 | Schunk Gmbh & Co Kg | Work-piece clamping unit, comprising sliding clamping elements swivel mounted between levers and clamping piston |
| CN201685123U (en) * | 2010-06-03 | 2010-12-29 | 成都银河动力股份有限公司 | Aluminum piston rough turned outer circle clamp of internal combustion engine |
| CN202763553U (en) * | 2012-08-15 | 2013-03-06 | 宁波爱柯迪压铸有限公司 | Whole post-tensioning clamp of motor cover |
| CN203221367U (en) * | 2012-12-12 | 2013-10-02 | 湖南江滨机器（集团）有限责任公司 | Excircle preliminary turning device for pistons |
| CN204148935U (en) * | 2014-09-30 | 2015-02-11 | 重庆杭飞机械制造有限公司 | For the tension-type fixture of machining piston |
-
2014
- 2014-09-30 CN CN201410517532.2A patent/CN104325333B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104325333A (en) | 2015-02-04 |
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