CN1038046A - Precise grouping elastic collet chuck - Google Patents
Precise grouping elastic collet chuck Download PDFInfo
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- CN1038046A CN1038046A CN 88105417 CN88105417A CN1038046A CN 1038046 A CN1038046 A CN 1038046A CN 88105417 CN88105417 CN 88105417 CN 88105417 A CN88105417 A CN 88105417A CN 1038046 A CN1038046 A CN 1038046A
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- collet chuck
- chuck body
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Abstract
This precise grouping elastic collet chuck belongs to lathe worker die clamper field.These anchor clamps be with the workpiece bore area serve as the location benchmark.Can solve the workpiece precision centering clamping problem of different inner diameters.Mainly be applicable to car, the grinding machine of various models.Anchor clamps are made up of axle, retaining mechanism, adjustable axial location cover and replaceable collet chuck body.Major technique is characterised in that radial reference location and axial location all have interchangeable adjustable function in a big way, and long workpiece can be realized the double end clamping, but retaining mechanism, axially and adjustable changing device radially molten be one, compact conformation.Clamping is operated in spindle head machine.
Description
Precise grouping elastic collet chuck Collet of the present invention belongs to lathe worker die clamper technical field.
In the existing machine tool centralizer, serve as that the location benchmark is modal as shown in Figure 1 a kind of with the workpiece endoporus.Be called for short bullet and stretch tight, form, need to be equipped with a general connecting rod (20) in addition by axle (10) and pull bar (18).Axle one end is taper shank (11), the other end has three uniform five equilibrium groove (12a, 12b, 12c, do not show 12b among the figure, 12c), the length of external diameter (13) and axial location (14) is all pressed the size of workpiece (17) and is decided, endoporus (15) cooperates with inner conical surface (16) and pull bar (18), and screw thread of pull bar afterbody (19) and connecting rod (20) are connected.When connecting rod drive pull bar moved axially backward, the outer cone of rod head forced mandrel head partly to rise greatly, realizes the clamping of workpiece.The anchor clamps of this structure have following shortcoming:
First shortcoming is that the axial location and the radial reference location of this anchor clamps do not have adjustable interchangeable function, and one pair of anchor clamps can only be finished a kind of clamping of workpiece one procedure, does not have versatility.
Second shortcoming can not solve the accurate clamping than farm labourer's part.Because axle has only an end to have the big performance that can rise, the workpiece skew then can be caused in the gap that the workpiece other end and axle cooperate.Workpiece is longer, and error is bigger.
The 3rd shortcoming is the work-handling inconvenience.Especially under the long situation of medium-and-large-sized lathe headstock main spindle box, the necessary hand workpiece loading and unloading of operator, the another hand is pieced together tight or is unclamped connecting rod at the afterbody of machine tool chief axis, thereby the displacement of operator's health and the expansion amplitude of both arms are all strengthened, and has improved the intensity of work.
The 4th weak point in service life that shortcoming is this anchor clamps scrapped with decreasing back integral body.Because the shank of anchor clamps and spreading partly are whole, therefore can not require to carry out correct selection, especially as easy as rolling off a log generation distortion of spreading part and wearing and tearing according to two different performances.
The 5th shortcoming is that the own wt of long connecting rod can cause pull bar (18) irregular skew and influence centering precision in clamping process.In addition, can not play the centering effect to pull bar during the endoporus spreading of axle.
In the existing machine tool anchor clamps, also has a kind of more advanced centering and clamping mechanism (referring to " jig design manual " the 440th page of Fig. 8-176) as shown in Figure 2.This clamp mechanism is made up of body (22), 3 pawls (23a, 23b, 23c do not show 23b, 23c among the figure) retainer (24), pull bar (25), connecting rod (26) and cover plate (27).
Body (22) is fixed on the machine tool chief axis, and (23a, 23b 23c) are distributed in three oblong aperture on the body periphery 3 pawls.Retainer (24) is stuck in the groove of body cylindrical and 3 pawls, makes the arc surface of three-jaw tightly depend on the male cone (strobilus masculinus) of pull bar, and when connecting rod (26) drives pull bar (25) when doing axial displacement left, the male cone (strobilus masculinus) of pull bar promotes the three-jaw outward radial and moves clamping work pieces.
Its major defect of this clamp mechanism is that three-jaw and workpiece contact area are little and easily makes workpiece produce distortion, crushes the surface, especially when processing thin-walled workpiece, more can not select this frock clamp for use.In addition, there is not adjustable axial location to limit the range of application of this anchor clamps yet.
The purpose of precise grouping elastic collet chuck of the present invention (Fig. 3) design provides a kind of various model lathes, particularly various model cars, the matching used high centering precision of grinding machine, easy to operate general collet chuck given.Mix in groups collet chuck body (Fig. 4) but the various workpiece of clamping different inner diameters, different length.
Grouping elastic collet chuck of the present invention is made up of axle (40), retaining mechanism, adjustable axial location cover (51) and replaceable collet chuck body (55).
Replaceable collet chuck body comprises that one group of single head opens the collet chuck body of three-flute and the collet chuck body (Fig. 4) that one group of double end is opened three-flute.
Retaining mechanism is formed by tightening up nut (42), limited block first (43), limited block second (44), thread slider (45) and pull bar (46).
Limited block first, limited block second and thread slider are all packed in the slot of axle, and the interior shoulder lattice (47) of limited block first are stuck on the cylindrical of axle.Owing to shoulder lattice in the two ends of tightening up nut are subjected to spacing, so tightening up nut does not produce axially and displacement radially when rotated, with tighten up thread slider that nut is meshed driving pull bar then can be along with the rotation of tightening up nut is moved vertically, when collet chuck body two ends internal taper hole is subjected to the extruding of axle and pull bar, rise greatly simultaneously in the two ends of collet chuck body, and self-centering, realize that with the workpiece endoporus be location benchmark clamping work pieces.If select the collet chuck body of end fluting for use, the internal taper hole of the end of not slotting only plays the effect of centering benchmark.The bright taro street coffin reed ぃ 7 of the noisy Rong of the winding meaning of cloth punishment) effect can only can not be rotated in axial displacement.
The advantage of this grouping elastic collet chuck and be characterised in that the retaining mechanism of anchor clamps is arranged on the head of headstock main shaft.Overcome and to have added in the prior art, locked at headstock main shaft afterbody and cause the excessive and excessive shortcoming of labour intensity of operator's displacement with long connecting rod.
But advantage of this grouping elastic collet chuck and feature also are on the same axle of collet chuck body dual-purpose of various outer diameter, and can reach high centering precision.Overcome the non-exchange shortcoming of (bullet shown in Figure 1 stretches tight) radial location benchmark in the prior art.
The feature of this grouping elastic collet chuck also is to comprise in the collet chuck body collet chuck body of single head fluting and the collet chuck body of double end fluting.Thereby can satisfy from the clamping of the high centering precision that is short to farm labourer's part.Having overcome in the prior art one pair of anchor clamps can not solve simultaneously than farm labourer's part with than the accurate clamping of casual labourer's part, the shortcoming that workpiece is longer, error is big more.
The feature of this grouping elastic collet chuck is that also adjustable axial location cover (51) can position according to the clamping length of workpiece.Axial location is overlapped an end the square groove of opening (52), 2 obstructed T type groove (53a) arranged (53b) on the periphery, the position of opening square groove can get out of the way the position of thread slider (45) axial displacement, does the levelling of axial location size and does not influence the rotation of tightening up nut thereby can make axial location be enclosed within the gap location that tightens up nut, axle and thread slider.Hold-down screw (54a, 54b do not show 54b among the figure) can be fixed on the axial location cover that regulates size on the axle.
Last feature of this grouping elastic collet chuck is on the inner conical surface of collet chuck body fluting, three notch places fall three halving curved surface (56a, 56b, 56c) make internal taper hole form six sections curved surfaces, thereby got rid of collet chuck body when spreading, the notch seamed edge is to the interference of conical surface contact, guaranteed high centering precision during collet chuck body in working order.
The optimum implementation of grouping elastic collet chuck of the present invention as shown in Figure 5.Each key dimension all marks.Product can be made by two series (s), referring to the form of Fig. 5 bottom.Collet chuck body external diameter (D) is that standard is selected or need be selected by the user by preferential axis.
Claims (5)
1, a kind of precise grouping elastic collet chuck of forming by axle, adjustable axial location cover, retaining mechanism and removable collet chuck body, be applicable to each model lathe, but the same axle of collet chuck body dual-purpose that it is characterized in that various outer diameter, realization radial reference location can be replaced, and can guarantee high precision fixed core.
2, be also that as its feature of the described grouping elastic collet chuck of claim 1. retaining mechanism is arranged on the head of headstock main shaft, retaining mechanism is by tightening up nut, the limited block first, limited block second, thread slider and pull bar are formed, the limited block first, limited block second and thread slider are all packed in the slot of axle, the interior shoulder lattice of limited block first are stuck on the cylindrical of axle, owing to shoulder lattice in the two ends of tightening up nut are subjected to spacing, so do not produce displacement axial and radially when rotated, with tighten up nut and nibble the sliding fixture block of screw thread of platform mutually and drive pull bar, can be along with the rotation of tightening up nut is moved vertically, when the two ends internal taper hole of collet chuck body is subjected to the extruding of axle and pull bar, collet chuck body one end rises big or rise greatly simultaneously in two ends, and self-centering, realize that with the workpiece endoporus be location benchmark clamping work pieces.
3, its feature of grouping elastic collet chuck as claimed in claim 1 is that also in groups collet chuck body comprises the collet chuck body of single head fluting and the collet chuck body of double end fluting, clamps thereby can solve the long workpiece two of length, and short workpiece one head-clamp of length is tight.
4, its feature of grouping elastic collet chuck as claimed in claim 1 is that also the axial location cover can position according to the clamping length of workpiece, axial location is overlapped the square groove that an end has opening, the position of open slot can get out of the way the position of thread slider axial displacement, do the levelling of axial location size and do not influence the rotation of tightening up nut thereby can make axial location be enclosed within the gap location that tightens up nut, axle and thread slider, hold-down screw can be fixed on the axial location cover that regulates size on the axle.
5, its feature of grouping elastic collet chuck as claimed in claim 1 is that also three notch places fall three halving curved surfaces on the inner conical surface of collet chuck body fluting, makes internal taper hole form six sections curved surfaces, has got rid of collet chuck body when spreading, and the notch seamed edge is to the interference of conical surface contact.Guaranteed collet chuck body high centering precision in working order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105417 CN1038046A (en) | 1988-05-27 | 1988-05-27 | Precise grouping elastic collet chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105417 CN1038046A (en) | 1988-05-27 | 1988-05-27 | Precise grouping elastic collet chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1038046A true CN1038046A (en) | 1989-12-20 |
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ID=4833611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105417 Pending CN1038046A (en) | 1988-05-27 | 1988-05-27 | Precise grouping elastic collet chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038046A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744517A (en) * | 2012-07-05 | 2012-10-24 | 北京科技大学 | Method for manufacturing dual-phase stainless steel hollow sandwich structure element |
| CN104507616A (en) * | 2012-08-02 | 2015-04-08 | 埃尔塞乐公司 | Method for manufacturing of a metal part |
| CN109128710A (en) * | 2018-10-10 | 2019-01-04 | 福建海山重工有限公司 | A kind of forklift part precision manufactureing technique |
| CN110530633A (en) * | 2019-09-23 | 2019-12-03 | 中山迈雷特智能装备有限公司 | A kind of spiral bevel gear pairing machine |
| CN110732797A (en) * | 2019-10-25 | 2020-01-31 | 国网四川省电力公司电力科学研究院 | aluminum polar plate welding method for integral calibration of power frequency electric field measuring instrument |
| CN112705968A (en) * | 2020-11-30 | 2021-04-27 | 广东鼎泰机器人科技有限公司 | Automatic locking universal material clamping mechanism for multi-station milling cutter processing machine |
| CN112846842A (en) * | 2020-11-30 | 2021-05-28 | 广东鼎泰机器人科技有限公司 | Rotation control center mechanism of multi-station milling cutter processing machine |
| CN114714368A (en) * | 2022-03-11 | 2022-07-08 | 苏州大学 | 3D printing impeller machining method adopting robot |
-
1988
- 1988-05-27 CN CN 88105417 patent/CN1038046A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744517A (en) * | 2012-07-05 | 2012-10-24 | 北京科技大学 | Method for manufacturing dual-phase stainless steel hollow sandwich structure element |
| CN102744517B (en) * | 2012-07-05 | 2015-04-15 | 北京科技大学 | Method for manufacturing dual-phase stainless steel hollow sandwich structure element |
| CN104507616A (en) * | 2012-08-02 | 2015-04-08 | 埃尔塞乐公司 | Method for manufacturing of a metal part |
| CN109128710A (en) * | 2018-10-10 | 2019-01-04 | 福建海山重工有限公司 | A kind of forklift part precision manufactureing technique |
| CN110530633A (en) * | 2019-09-23 | 2019-12-03 | 中山迈雷特智能装备有限公司 | A kind of spiral bevel gear pairing machine |
| CN110732797A (en) * | 2019-10-25 | 2020-01-31 | 国网四川省电力公司电力科学研究院 | aluminum polar plate welding method for integral calibration of power frequency electric field measuring instrument |
| CN112705968A (en) * | 2020-11-30 | 2021-04-27 | 广东鼎泰机器人科技有限公司 | Automatic locking universal material clamping mechanism for multi-station milling cutter processing machine |
| CN112846842A (en) * | 2020-11-30 | 2021-05-28 | 广东鼎泰机器人科技有限公司 | Rotation control center mechanism of multi-station milling cutter processing machine |
| CN114714368A (en) * | 2022-03-11 | 2022-07-08 | 苏州大学 | 3D printing impeller machining method adopting robot |
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| CF01 | Termination of patent right due to non-payment of annual fee |