CN203495272U - Outer wall machining clamp for blind hole thin-wall sleeve parts - Google Patents

Outer wall machining clamp for blind hole thin-wall sleeve parts Download PDF

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Publication number
CN203495272U
CN203495272U CN201320603975.4U CN201320603975U CN203495272U CN 203495272 U CN203495272 U CN 203495272U CN 201320603975 U CN201320603975 U CN 201320603975U CN 203495272 U CN203495272 U CN 203495272U
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CN
China
Prior art keywords
sleeve
mandrel
clamp
machining
elastic jacket
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.)
Expired - Fee Related
Application number
CN201320603975.4U
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Chinese (zh)
Inventor
曾平安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Winstar Hydraulic Transmission Machinery Co Ltd
Original Assignee
Guizhou Winstar Hydraulic Transmission Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guizhou Winstar Hydraulic Transmission Machinery Co Ltd filed Critical Guizhou Winstar Hydraulic Transmission Machinery Co Ltd
Priority to CN201320603975.4U priority Critical patent/CN203495272U/en
Application granted granted Critical
Publication of CN203495272U publication Critical patent/CN203495272U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an outer wall machining clamp for blind hole thin-wall sleeve parts. The clamp comprises a mandrel and a fastening nut connected onto the mandrel through threads. An elastic clamping sleeve is connected onto the mandrel in a sleeved mode, the elastic clamping sleeve is cylindrical overall, the two ends of the elastic clamping sleeve are respectively in the shape of a cone with the outer end larger than the inner end, the tail end of the mandrel is a conical surface and matched with the elastic clamping sleeve, a taper sleeve is further connected onto the mandrel in a sleeved mode, the taper sleeve is arranged between the fastening nut and the elastic clamping sleeve, and the conical surface of the taper sleeve is placed in the elastic clamping sleeve. According to the clamp, the design of the elastic clamping sleeve with two expandable ends is adopted, when the elastic clamping sleeve expands, centering is performed on the inner diameter of a part, the opening end of the part and the inner bottom end of the part are clamped simultaneously, the clamp plays a role in bi-directional clamping, the locating and clamping effects of the clamp are enhanced accordingly, clamping and machining deformation of the outer circles of the thin-wall sleeve parts when the outer circles of the thin-wall sleeve parts are machined on a turning lathe and a grinding machine in a finishing mode can be effectively avoided, the machining quality is guaranteed and improved, therefore, the production efficiency is improved, and the machining cost is lowered.

Description

A kind of blind hole thin walled cylinder body class part outer wall clamp for machining
Technical field
The utility model relates to a kind of sleeve part outer wall clamp for machining, relates in particular to a kind of blind hole thin walled cylinder body class part outer wall clamp for machining, belongs to Machining Technology field.
Background technology
In machining, the endoporus of this class thin walled cylinder body part is as shown in Figure 1 blind hole, and all higher to the excircle dimension precision of part, form and position tolerance and surface roughness requirement, the traditional processing method of this class part is generally lathe processing, first after lathe roughing, need to carry out fine finishining at lathe or grinding machine, because the endoporus of this class part is obstructed, hole wall is thin, bowlder outside fine finishining on lathe and grinding machine, clamping difficulty, very easily deform, be difficult to guarantee crudy.At present be mainly to adopt complicated technical process to coordinate the cylindrical of technological equipment this class part of fine finishining on lathe and grinding machine.
Chinese patent ZL201220440240.X discloses a kind of sleeve part rough turning clamp for machining, this fixture comprises taper mandrel, pull bar, taper ringfeder, spring and nut, the cylindrical of taper ringfeder is axially opened shrinkage joint along even circumferential, taper ringfeder is contained on the outer wall of taper mandrel along axis direction through spring housing, pull bar is through taper mandrel, the centre bore of spring and taper ringfeder, one end hold-down nut of pull bar, taper ringfeder is done radially harmomegathus under the effect of the conical surface cooperatively interacting, taper ringfeder spreading radially when taper ringfeder coordinates the conical surface to be moved to the left along the axis direction of taper mandrel, taper ringfeder radial contraction when taper ringfeder coordinates the conical surface to move right along the axis direction of taper mandrel.This scheme is from sleeve inner, to realize the clamping of sleeve type, realized the clamping requirement of rough turning, although this scheme can realize effective clamping, but its fixed position is only at the openend of sleeve part, in sleeve part, bottom cannot be fixed, lathe clamp there will be the situation of clamping shakiness when high speed rotating, part may rotate skew, in process, produce distortion, and then cause processing failure or precision and reduce, produce substandard products or waste product, for the sleeve of high-precision requirement, cannot complete processing.
Utility model content
In order to solve the problems of the technologies described above, the utility model aim to provide a kind of easy and simple to handle, centering precision is high, clamping is effective, blind hole thin walled cylinder body class part outer wall clamp for machining.
The utility model is achieved through the following technical solutions:
A blind hole thin walled cylinder body class part outer wall clamp for machining, comprises mandrel, through being threaded in the clamp nut on mandrel; On described mandrel, be socketed with elastic jacket, cylindrical and the two ends of this elastic jacket integral body are the taper that outer imperial palace is little, mandrel end is taper and coordinates with elastic jacket, on described mandrel, be also socketed with tapered sleeve, this tapered sleeve is placed between clamp nut and elastic jacket, and the conical surface of tapered sleeve coordinates with elastic jacket.
The angle of described elastic jacket inner conical is 10~30 °.
Described elastic jacket two ends all have some switching grooves.
The switching groove arranged crosswise at described elastic jacket two ends.
The switching groove of the every one end of described elastic jacket has 4~6.
The conical surface of described tapered sleeve is identical with the conical degree of conical surface of mandrel.
The beneficial effects of the utility model are:
Compared with prior art, the blind hole thin walled cylinder body class part outer wall clamp for machining that the utility model provides, this fixture adopts the elastic jacket design of double end Expandable, makes the internal diameter centering of sleeve part during elastic jacket expansion, and openend and interior bottom are clamped simultaneously; Play the effect of Bidirectional clamping, and then having strengthened the clamping effect of fixture, the cylindrical that can effectively prevent thin-wall sleeve tube kind part clamping, machining deformation during fine finishining on lathe and grinding machine, guarantee and improved crudy, thereby enhance productivity, cut down finished cost.
Accompanying drawing explanation
Fig. 1 is the part schematic diagram that needs processing;
Fig. 2 is structure chart of the present utility model;
Fig. 3 is the side view of the utility model Elastic chuck;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is clamping view of the present utility model;
In figure: 1-mandrel, 2-clamp nut, 3-tapered sleeve, 4-elastic jacket, 5-part, 6-opens and closes groove.
The specific embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further, but described in desired protection domain is not limited to;
As shown in Fig. 2,3 and 4, the blind hole thin walled cylinder body class part outer wall clamp for machining that the utility model provides, comprises mandrel 1, through being threaded in the clamp nut 2 on mandrel 1; On described mandrel 1, be socketed with elastic jacket 4, the whole cylindrical and two ends of this elastic jacket 4 are the taper that outer imperial palace is little, mandrel 1 end is the conical surface and coordinates with elastic jacket 4, on described mandrel 1, be also socketed with tapered sleeve 3, this tapered sleeve 3 is placed between clamp nut 2 and elastic jacket 4, and the conical surface of tapered sleeve 3 coordinates with elastic jacket 4.
In order to realize the expansion object of elastic jacket 4, described elastic jacket 4 two ends all have some switching grooves 7, realize expansion and the reply of elastic jacket 4 by opening and closing groove 6.
In order to meet the difference of elastic jacket 4 expansion amount, the angle of described elastic jacket 4 inner conicals is 10~30 °, and then has promoted the scope of application of the present utility model.
In order to prevent that elastic jacket 4 from can crack in process of expansion, impact is normally used, switching groove 6 arranged crosswise at described elastic jacket 4 two ends.
The switching groove 6 of described elastic jacket 4 every one end has 4~6, can guarantee that elastic jacket 4 has good elasticity, again can proof strength.
In order to guarantee part internal diameter centering after elastic jacket 4 expansion, and openend and interior bottom clamped simultaneously, and the conical surface of described tapered sleeve 3 is identical with the conical degree of conical surface of mandrel 1.
Embodiment: before use, while needing part as shown in Figure 1 of processing, first with clip position in scroll chuck clamping axle 1 on lathe or grinding machine, calibration axle 1, makes in axle 1 outer conical surface coaxial with machine tool chief axis.
During use, 5 openings of part are as shown in Figure 1 enclosed within left and on elastic jacket 4, are state as shown in Figure 5, the right side of the interior bottom of part 5 and elastic jacket 4 is fitted tightly, then turn clamp nut 2 to the right, make clamp nut 2 do axially-movable to the right, and then promote tapered sleeve 3 to the interior slip of elastic jacket 4, pull mandrel 1 end to the interior slip of elastic jacket 4 simultaneously, due to the taper fit between tapered sleeve 3 and elastic jacket 4, mandrel 1 and elastic jacket taper fit, elastic jacket 4 two ends are stretched and expand gradually, make part 5 internal diameter centering, openend and interior bottom are clamped simultaneously, start the processing that lathe can complete part 5 cylindricals.

Claims (6)

1. a blind hole thin walled cylinder body class part outer wall clamp for machining, comprise mandrel (1), through being threaded in the clamp nut (2) on mandrel (1), it is characterized in that: on described mandrel (1), be socketed with elastic jacket (4), this elastic jacket (4) integral body is cylindrical, and two ends are the taper that outer imperial palace is little, mandrel (1) end is taper and coordinates with elastic jacket (4), on described mandrel (1), be also socketed with tapered sleeve (3), this tapered sleeve (3) is placed between clamp nut (2) and elastic jacket (4), and the conical surface of tapered sleeve (3) coordinates with elastic jacket (4).
2. blind hole thin walled cylinder body class part outer wall clamp for machining according to claim 1, is characterized in that: the angle of described elastic jacket (4) inner conical is 10~30 °.
3. blind hole thin walled cylinder body class part outer wall clamp for machining according to claim 1, is characterized in that: described elastic jacket (4) two ends all have some switching grooves (6).
4. blind hole thin walled cylinder body class part outer wall clamp for machining according to claim 3, is characterized in that: switching groove (6) arranged crosswise at described elastic jacket (4) two ends.
5. blind hole thin walled cylinder body class part outer wall clamp for machining according to claim 3, is characterized in that: the switching groove (6) of the every one end of described elastic jacket (4) has 4~6.
6. blind hole thin walled cylinder body class part outer wall clamp for machining according to claim 1, is characterized in that: the conical surface of described tapered sleeve (3) is identical with the conical degree of conical surface of mandrel (1).
CN201320603975.4U 2013-09-27 2013-09-27 Outer wall machining clamp for blind hole thin-wall sleeve parts Expired - Fee Related CN203495272U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320603975.4U CN203495272U (en) 2013-09-27 2013-09-27 Outer wall machining clamp for blind hole thin-wall sleeve parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320603975.4U CN203495272U (en) 2013-09-27 2013-09-27 Outer wall machining clamp for blind hole thin-wall sleeve parts

Publications (1)

Publication Number Publication Date
CN203495272U true CN203495272U (en) 2014-03-26

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103495755A (en) * 2013-09-27 2014-01-08 贵州凯星液力传动机械有限公司 Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof
CN104043851A (en) * 2014-06-10 2014-09-17 西安航天动力机械厂 Tool for processing cylindrical workpiece
CN104440532A (en) * 2014-11-29 2015-03-25 江西洪都航空工业集团有限责任公司 Grinding head for eliminating ellipticity of inner hole
CN105562749A (en) * 2016-02-29 2016-05-11 宝鸡石油机械有限责任公司 Automotive clamping method for elastic sealing backing ring
CN111922740A (en) * 2020-07-06 2020-11-13 河北师范大学 Lathe fixture of double-eccentric thin-wall sleeve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103495755A (en) * 2013-09-27 2014-01-08 贵州凯星液力传动机械有限公司 Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof
CN103495755B (en) * 2013-09-27 2017-01-18 贵州凯星液力传动机械有限公司 Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof
CN104043851A (en) * 2014-06-10 2014-09-17 西安航天动力机械厂 Tool for processing cylindrical workpiece
CN104440532A (en) * 2014-11-29 2015-03-25 江西洪都航空工业集团有限责任公司 Grinding head for eliminating ellipticity of inner hole
CN105562749A (en) * 2016-02-29 2016-05-11 宝鸡石油机械有限责任公司 Automotive clamping method for elastic sealing backing ring
CN105562749B (en) * 2016-02-29 2017-10-31 宝鸡石油机械有限责任公司 A kind of automobile-used clamping method of elastic packing gasket ring
CN111922740A (en) * 2020-07-06 2020-11-13 河北师范大学 Lathe fixture of double-eccentric thin-wall sleeve

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140326

Termination date: 20170927