CN104325333A - Tensioning type clamp for processing piston - Google Patents
Tensioning type clamp for processing piston Download PDFInfo
- Publication number
- CN104325333A CN104325333A CN201410517532.2A CN201410517532A CN104325333A CN 104325333 A CN104325333 A CN 104325333A CN 201410517532 A CN201410517532 A CN 201410517532A CN 104325333 A CN104325333 A CN 104325333A
- Authority
- CN
- China
- Prior art keywords
- pull bar
- wall
- piston
- clamp body
- pull rod
- 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
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Classifications
-
- 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
Abstract
The invention discloses a tensioning type clamp for processing a piston. The tensioning type clamp comprises a pull rod, a spring, a clamp head and a clamp body, wherein the clamp body is connected with a main shaft of a machine tool, one side of the pull rod is glidingly connected with a groove, one end of the spring is connected with the bottom of the groove, the other end of the groove is connected with the end part of the pull rod, the outer part of one side of the pull rod is provided with a shaft sleeve in a sleeving way, a slide sleeve glidingly connected with the pull rod sleeves the outside of the other side of the pull rod, a step sleeve sleeves outside the shaft sleeve, the outer wall of the shaft sleeve is connected with the inner wall of one side of the step sleeve through screw threads, the inner wall of the shaft sleeve is connected with the pull rod through internal screw threads, the inner wall of the other side of the step sleeve is connected with one end, provided with external screw threads, of the clamp body through screw threads, the clamp head comprises a T-shaped movable block capable of entering a strip-shaped hole formed in the end part of the piston, and the end part of the long edge of the T-shaped movable block is connected with the end part of the other end of the pull rod. The tensioning type clamp overcomes the defects of poor fixation effect and low workpiece blank utilization rate during the clamping of the existing clamp. The invention provides the tensioning type clamp for processing the piston with the advantages that the fixation effect is good, and the blank cutting utilization rate is high.
Description
Technical field
The invention belongs to the device field of clamping work pieces, be specifically related to a kind of tension-type fixture for machining piston.
Background technology
Piston of automobile cans be compared to the central position of automobile engine, account for extremely important status when engine start.Piston of automobile is used to bear gas pressure, and orders about crankshaft rotating by piston pin by connecting rod, top land or the part of combustion chamber.General piston of automobile is divided into: diesel engine piston, piston of gasoline engine, universal piston three major types.
Common piston comprises the piston only of tubular, and as shown in Figure 1, the end face of piston only is provided with bar hole 11, and when the cylindrical of turning piston only and endoporus, needs piston only to clamp.Be used for fixing processing object in machinery manufacture process during fixture, make it to occupy correct position, to accept the device of constructing or detecting.Be used for fixing processing object in machine-building process, make it to occupy correct position, to accept the device of constructing or detecting.Common fixture comprises elasticity jaw, and elasticity jaw can be placed on swelling in cylinder and fix, and also can be clipped in that cylinder is outer to be clamped, and for piston blank workpiece, the end of piston only only offers bar hole, and it is little that contact area is fixed in swelling, and fixed effect is poor; If clamping blank is outside, then the integrity degree processed is poor, because jaw is clipped in blank outside, therefore, adds man-hour, can there is processing blind area, thus cause utilization rate low.
Summary of the invention
When the technical problem to be solved in the present invention is for existing clamp piston, the defect that fixed effect is poor or workpiece blank utilization rate is low, provides a kind of good fixing effect to cut the high tension-type fixture for machining piston of blank utilization rate.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: for the tension-type fixture of machining piston, the clamp body comprising pull bar, spring, chuck and be connected with machine tool chief axis, one end of clamp body is axially embedded in main shaft, the other end of clamp body is axially arranged with the groove holding pull bar and spring, side and the groove of pull bar are slidably connected, and spring one end is connected with bottom portion of groove, and the other end of spring is connected with the end of pull bar; Clamp body other end outer wall is provided with external screw thread, and the outer cover of pull bar side is provided with axle sleeve, and the opposite side outer cover of pull bar is provided with the sliding sleeve be slidably connected with pull bar; Be arranged with ladder cover outside axle sleeve, outer wall and the ladder of axle sleeve overlap side inner thread and are connected, and the inwall of axle sleeve is connected with pull bar internal thread, and the opposite side inwall of ladder cover is provided with externally threaded threaded one end with clamp body and is connected; The outer wall of sliding sleeve be provided with external screw thread and with external screw thread meshed gears, gear is provided with handle; Chuck comprises the T-shaped movable block that can enter pistons end bar hole, and the end, long limit of T-shaped movable block is connected with the other end end of pull bar.
Adopt the tension-type fixture for machining piston of technical solution of the present invention, the clamp body comprising pull bar, spring, chuck and be connected with machine tool chief axis, one end of clamp body is axially embedded in main shaft, the other end of clamp body is axially arranged with the groove holding pull bar and spring, side and the groove of pull bar are slidably connected, spring one end is connected with bottom portion of groove, and the other end of spring is connected with the end of pull bar; Clamp body is connected by ring flange with lathe, pull bar can in groove slider pulling function, spring plays reset role.Clamp body other end outer wall is provided with external screw thread, and the outer cover of pull bar side is provided with axle sleeve, and the opposite side outer cover of pull bar is provided with the sliding sleeve be slidably connected with pull bar; Be arranged with ladder cover outside axle sleeve, outer wall and the ladder of axle sleeve overlap side inner thread and are connected, and the inwall of axle sleeve is connected with pull bar internal thread, and the opposite side inwall of ladder cover is provided with externally threaded threaded one end with clamp body and is connected; Axle sleeve plays pulling function, its impetus of sliding sleeve, and ladder cover, axle sleeve and pull bar are and are threaded, the opposite side of ladder cover is threaded with clamp body, therefore, when the spiral precession of ladder cover, ladder is enclosed within precession on clamp body, thus drives axle sleeve precession, and then drives pull bar to move axially.Chuck comprises the T-shaped movable block that can enter pistons end bar hole, and the end, long limit of T-shaped movable block is connected with the other end end of pull bar; Chuck is located at tie rod end, T-shaped movable block stretches into internal piston through the bar hole of pistons end, owing to being subject to the precession of pull bar, move axially because pull bar is subject to axle sleeve generation again, thus rotate the angle of T-shaped minor face, make T-shaped minor face be stuck in inner wall of end in piston, and chuck is strained and fixed by pull bar.The outer wall of sliding sleeve be provided with external screw thread and with external screw thread meshed gears, gear is provided with handle; Handle can pull handle along the radial direction of gear, and gear engages with the external screw thread of sliding sleeve, thus drives sliding sleeve to move, and slides over outside hold out against pistons end for utilization.
Operation principle of the present invention and beneficial effect are: first stretch in piston by the minor face of T-shaped movable block, again to machine tool chief axis direction precession multidiameter, multidiameter is in the outer wall precession of clamp body, due to multidiameter, axle sleeve and pull bar are and are threaded, precession multidiameter, thus drive axle sleeve precession, and then drive pull bar to major axes orientation precession, pull bar drives T-shaped movable block rotate to major axes orientation and move, when the minor face of T-shaped movable block and pistons end inwall offset, continue precession again, pull bar pulls T-shaped movable block itself and pistons end closely to be offseted, thus be strained and fixed, in addition, pull handle to major axes orientation, handle strip moving gear rotates, and gear engages with the external screw thread of sliding sleeve outer wall, gives its opposite effect power, thus is moved to piston direction by sliding sleeve, until offset with pistons end outer wall, pushed against from outside.T-shaped movable block is strained and fixed in piston, and sliding sleeve is pushed against from piston exterior, dual fixing, fix to clamp effective, and the outer bowlder of machining piston, because blank outer workpiece does not have the fixture of interfering processing, therefore can process completely, blank utilization rate is high, cost-saving.After machining, when unclamping workpiece, rightabout pulls handwheel, sliding sleeve is loosened piston, the ladder of precession in the other direction cover, same reason, add that the reset response of spring makes T-shaped movable block loosen piston, more T-shaped movable block is taken out from the bar hole of pistons end.
Further, described ladder cover outer wall is provided with handwheel.The rotatable ladder cover of handwheel, easy to operate.
Further, described is provided with at least two with the external screw thread meshed gears of sliding sleeve outer wall, and evenly arranges around sliding sleeve axle center.The dynamics balance and stability that at least two gear guarantee sliding sleeves are subject to, strong operability.
Further, described is provided with two with the external screw thread meshed gears of sliding sleeve outer wall, and the angle between two gears is 180 degree.An each side gear, easy to operate and dynamics is moderate.
Further, described T-shaped movable block is provided with one group of projection towards the minor face wall of pistons end.Make the frictional force of the contact surface of T-shaped movable block and piston large, increase tension effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
Fig. 1 is the end view of piston;
Fig. 2 be the present invention for the tension-type fixture embodiment of machining piston unclamp workpiece time view;
View when Fig. 3 is clamping work pieces of the present invention;
In figure: pull bar 1, spring 2, machine tool chief axis 3, clamp body 4, groove 5, axle sleeve 6, ladder cover 7, sliding sleeve 8, gear 9, handle 10, bar hole 11, T-shaped movable block 12, handwheel 13.
Detailed description of the invention
As shown in Figure 2, the present invention is used for the tension-type fixture of machining piston, the clamp body 4 comprising pull bar 1, spring 2, chuck and be connected with machine tool chief axis 3, as shown in Figure 1, chuck comprises the T-shaped movable block 12 that can enter pistons end bar hole 11, the end, long limit of T-shaped movable block 12 is connected with the other end end of pull bar 1, and T-shaped movable block 12 is provided with multiple projection towards the minor face wall of pistons end; One end of clamp body 4 is elastic expansion sleeve, elastic expansion sleeve to insert in machine tool chief axis 3 and locks with ring flange, the other end of clamp body 4 is axially arranged with the groove 5 holding pull bar 1 and spring 2, the side of pull bar 1 is positioned at groove 5 and contacts, pull bar 1 slides in groove 5, spring 2 one end is fixedly connected with bottom groove 5, and the other end of spring 2 is connected with the end winding support of pull bar 1; Clamp body 4 other end outer wall is provided with external screw thread, and the outer cover of pull bar 1 side is provided with axle sleeve 6, and be arranged with ladder cover 7 outside axle sleeve 6, ladder overlaps 7 outer walls and is installed with handwheel 13, and handwheel 13 overlaps 7 outer walls around ladder and is provided with two, and two are 180 °; Outer wall and the ladder of axle sleeve 6 overlap 7 side inner threads and are connected, the inwall of axle sleeve 6 is connected with pull bar 1 internal thread, the external screw thread of pull bar 1 outer wall is the thread that end face is level and smooth, the opposite side outer cover of pull bar 1 is provided with the sliding sleeve 8 be connected with pull bar 1 contact slide, and sliding sleeve 8 slides with the external threaded surface of pull bar 1 outer wall; The opposite side inwall of ladder cover 7 is provided with externally threaded threaded one end with clamp body 4 and is connected; Two gears 9 that the outer wall of sliding sleeve 8 is provided with external screw thread and engages with external screw thread, the radial direction of gear 9 is consistent with the axial direction of sliding sleeve 8, and the both sides of sliding sleeve 8 are located at by two gears 9, and gear 9 is provided with handle 10, and the center, end of gear 9 is located at by handle 10.
In specific implementation process, as shown in Figure 3, first clamp body 4 to be inserted in machine tool chief axis 3 with the side of elastic expansion sleeve and connect with ring flange, fixture is connected with machine tool chief axis 3, during clamping work pieces, first also pass bar hole 11 by relative with the bar hole 11 of workpiece for the short end of T-shaped movable block 12, rotate handwheel 13, drive ladder cover 7 on clamp body 4 to machine tool chief axis 3 direction precession, ladder cover 7 drives axle sleeve 6 and pull bar 1 to slide in groove 5 to machine tool chief axis 3 direction and moves, thus rotate and move axially pull bar 1, and then rotate and move axially T-shaped movable block 12, when T-shaped movable block 12 offsets with pistons end inwall, pull bar 1 continues the tension minor face of T-shaped movable block 12 and pistons end its multiple projection that closely offsets and increases its frictional force, avoid sliding, now, spring 2 is in compressive state, ladder cover 7 is threaded with clamp body 4 and axle sleeve 6, avoid ladder to overlap 7 to loosen.In addition, handle 10 is pulled to machine tool chief axis 3, handle 10 driven gear 9 rotates to machine tool chief axis 3, thus sliding sleeve 8 is stirred to workpiece direction, until the end of sliding sleeve 8 and pistons end are offseted, gear 9 coordinates with sliding sleeve 8 avoids it to loosen, thus piston is strained and fixed in piston and is held out against from outside fixing, thus fixation, then its cylindrical is processed, after machining, rotation hand wheel 13 and handle 10 in the other direction, pull bar 1 resets by spring 2, thus is unclamped by workpiece, and T-shaped movable block 12 takes out from bar hole 11.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (5)
1. for the tension-type fixture of machining piston, it is characterized in that: the clamp body comprising pull bar, spring, chuck and be connected with machine tool chief axis, one end of clamp body is axially embedded in main shaft, the other end of clamp body is axially arranged with the groove holding pull bar and spring, side and the groove of pull bar are slidably connected, spring one end is connected with bottom portion of groove, and the other end of spring is connected with the end of pull bar; Clamp body other end outer wall is provided with external screw thread, and the outer cover of pull bar side is provided with axle sleeve, and the opposite side outer cover of pull bar is provided with the sliding sleeve be slidably connected with pull bar; Be arranged with ladder cover outside axle sleeve, outer wall and the ladder of axle sleeve overlap side inner thread and are connected, and the inwall of axle sleeve is connected with pull bar internal thread, and the opposite side inwall of ladder cover is provided with externally threaded threaded one end with clamp body and is connected; The outer wall of sliding sleeve be provided with external screw thread and with external screw thread meshed gears, gear is provided with handle; Chuck comprises the T-shaped movable block that can enter pistons end bar hole, and the end, long limit of T-shaped movable block is connected with the other end end of pull bar.
2. as claimed in claim 1 for the tension-type fixture of machining piston, it is characterized in that: described ladder cover outer wall is provided with handwheel.
3. as claimed in claim 1 for the tension-type fixture of machining piston, it is characterized in that: described is provided with at least two with the external screw thread meshed gears of sliding sleeve outer wall, and evenly arranges around sliding sleeve axle center.
4. as claimed in claim 3 for the tension-type fixture of machining piston, it is characterized in that: described is provided with two with the external screw thread meshed gears of sliding sleeve outer wall, and the angle between two gears is 180 degree.
5. as the tension-type fixture for machining piston as described in any one in claim 1-4, it is characterized in that: described T-shaped movable block is provided with one group of projection towards the minor face wall of pistons end.
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 true CN104325333A (en) | 2015-02-04 |
| CN104325333B CN104325333B (en) | 2019-04-30 |
Family
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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305770A (en) * | 2017-01-12 | 2018-07-20 | 万润科技股份有限公司 | Clamp and material arranging method and device using same |
| CN116619184A (en) * | 2023-06-05 | 2023-08-22 | 台州沃特洁具股份有限公司 | Tap valve polishing grinding device |
Citations (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
Patent Citations (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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305770A (en) * | 2017-01-12 | 2018-07-20 | 万润科技股份有限公司 | Clamp and material arranging method and device using same |
| CN116619184A (en) * | 2023-06-05 | 2023-08-22 | 台州沃特洁具股份有限公司 | Tap valve polishing grinding device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104325333B (en) | 2019-04-30 |
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