CN204148935U - For the tension-type fixture of machining piston - Google Patents
For the tension-type fixture of machining piston Download PDFInfo
- Publication number
- CN204148935U CN204148935U CN201420571894.5U CN201420571894U CN204148935U CN 204148935 U CN204148935 U CN 204148935U CN 201420571894 U CN201420571894 U CN 201420571894U CN 204148935 U CN204148935 U CN 204148935U
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- China
- Prior art keywords
- pull bar
- axle sleeve
- clamp body
- wall
- spring
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Abstract
The utility model discloses a kind of tension-type fixture for machining piston, the clamp body comprising pull bar, spring, chuck and be connected with machine tool chief axis, 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; 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; 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.The defect that when the utility model overcomes existing clamp piston, fixed effect is poor, 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.
Description
Technical field
The utility model belongs to the device field of clamping work pieces, is 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.
Utility model content
When the technical problems to be solved in the utility model 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 utility model 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 solutions of the utility model, 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 utility model 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 solutions of the utility model are further illustrated:
Fig. 1 is the end view of piston;
Fig. 2 be the utility model for the tension-type fixture embodiment of machining piston unclamp workpiece time view;
View when Fig. 3 is the utility model clamping work pieces;
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 utility model 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 the utility model structure; can also make some distortion and improvement, these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
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 |
|---|---|---|---|
| CN201420571894.5U CN204148935U (en) | 2014-09-30 | 2014-09-30 | For the tension-type fixture of machining piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571894.5U CN204148935U (en) | 2014-09-30 | 2014-09-30 | For the tension-type fixture of machining piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204148935U true CN204148935U (en) | 2015-02-11 |
Family
ID=52507088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420571894.5U Expired - Fee Related CN204148935U (en) | 2014-09-30 | 2014-09-30 | For the tension-type fixture of machining piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204148935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325333A (en) * | 2014-09-30 | 2015-02-04 | 重庆杭飞机械制造有限公司 | Tensioning type clamp for processing piston |
| CN108176537B (en) * | 2017-12-26 | 2020-06-05 | 浙江浩海管业有限公司 | Spraying type pipeline manufacturing equipment |
-
2014
- 2014-09-30 CN CN201420571894.5U patent/CN204148935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325333A (en) * | 2014-09-30 | 2015-02-04 | 重庆杭飞机械制造有限公司 | Tensioning type clamp for processing piston |
| CN108176537B (en) * | 2017-12-26 | 2020-06-05 | 浙江浩海管业有限公司 | Spraying type pipeline manufacturing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |