CN105149701A - Clamp for gear machining - Google Patents
Clamp for gear machining Download PDFInfo
- Publication number
- CN105149701A CN105149701A CN201510626053.9A CN201510626053A CN105149701A CN 105149701 A CN105149701 A CN 105149701A CN 201510626053 A CN201510626053 A CN 201510626053A CN 105149701 A CN105149701 A CN 105149701A
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- China
- Prior art keywords
- axle sleeve
- functional areas
- workpiece
- mandrel
- shaft sleeve
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Abstract
The invention discloses a clamp for gear machining. The clamp comprises a mandrel, a shaft sleeve and a limiting assembly. A functional area is arranged at the upper end of the mandrel, is of a three-stage step structure, and is provided with a disc-shaped part for bearing a workpiece, a circular-truncated-cone-shaped part and a cylindrical part from bottom to top. The circular-truncated-cone-shaped part is provided with the shaft sleeve. The cylindrical part is provided with the limiting assembly. The shaft sleeve is made of elastic materials and is coaxial with the mandrel, and the mandrel axially penetrates the shaft sleeve which is arranged on the circular-truncated-cone-shaped part of the functional area in a sleeving manner. Inner side of the shaft sleeve is matched with the outer side of the circular-truncated-cone-shaped part of the functional area, and the outer side of the shaft sleeve is matched with the inner side of an inner hole of the workpiece. The inner diameters of openings in the upper end and the lower end of the shaft sleeve are smaller than the diameters of the upper end face and the lower end face of the circular-truncated-cone-shaped part of the functional area respectively. The limiting assembly is located on the opening in the upper end of the shaft sleeve. The shaft sleeve is pressed through the limiting assembly, the shaft sleeve is made to deform to clamp the workpiece, and the precision of gear machining is guaranteed. Meanwhile, operation of the whole process of taking and placing the workpiece is easy and convenient, and the production efficiency is improved well.
Description
Technical field
The invention belongs to Machining Technology field, be specifically related to a kind of fixture for Gear Processing.
Background technology
Add man-hour to gear in industry, generally all can there is certain gap between workpiece and mandrel, cause workpiece circular runout poor, precision is low, can not meet the instructions for use of gear.Traditional solution carries out centering by the cylindrical coaxial with inner hole of workpiece.Although this way ensure that the precision of Gear Processing, production efficiency is extremely low.
Summary of the invention
The object of the embodiment of the present invention is for above-mentioned the deficiencies in the prior art, provides a kind of fixture for Gear Processing, ensures the precision of Gear Processing, enhances productivity simultaneously.
The invention provides a kind of fixture for Gear Processing, comprise mandrel, axle sleeve and limit assembly;
The upper end of described mandrel is functional areas, in three grades of step-like structures;
Minimum one deck of described functional areas is discoid, for carrying workpiece;
Middle one deck of described functional areas is round table-like, for arranging axle sleeve;
The maximum layer of described functional areas is cylindric, for arranging limit assembly;
Described axle sleeve is that elastomeric material is made, by stressed generation deformation in order to clamping workpiece; Described axle sleeve is coaxial with mandrel, and it is axially run through, and is sheathed on the round table-like part in described functional areas; Matching with the outside of the round table-like part in functional areas in the inner side of described axle sleeve, matches outside it with the inner side of inner hole of workpiece; The internal diameter of the upper and lower both ends open of described axle sleeve is less than the diameter of upper and lower two bottom surfaces of the round table-like part in functional areas respectively;
Described limit assembly is positioned at axle sleeve upper end open place, makes it produce deformation by compressing axle sleeve.
Further illustrate, described axle sleeve is provided with the breach running through its upper and lower two ends.
Further illustrate, the material of described axle sleeve is spring steel.
Further illustrate, the cone angle of the round table-like part in described functional areas is more than or equal to 3 °, and is less than or equal to 5 °.
Further illustrate, the wall thickness at described axle sleeve upper end open place is less than or equal to 5mm, and the wall thickness at lower ending opening place is more than or equal to 3mm.
Further illustrate, described limit assembly comprises nut, is correspondingly provided with in the outside of described functional areas maximum layer the screw thread matched with nut.
Further illustrate, described limit assembly also comprises gland, between nut and axle sleeve, and coaxial with mandrel; The external diameter of described gland is greater than the internal diameter of axle sleeve.
Further illustrate, the external diameter of described nut and gland is all less than the internal diameter of inner hole of workpiece.
Compared with prior art, the beneficial effect brought for the fixture of Gear Processing provided by the present invention is:
Compress axle sleeve by limit assembly, make its slide downward produce radial deformation, fill the gap of workpiece and mandrel, thus clamping workpiece, ensure to add the stable, firm of workpiece in man-hour.In addition, staff directly can take, put workpiece, does not need constantly to repeat dismounting or assembling to fixture, simple, convenient, improves production efficiency preferably.
Accompanying drawing explanation
Fig. 1 is the fixture explosive view for Gear Processing that the embodiment of the present invention provides.
Description of reference numerals: 1-mandrel, 2-axle sleeve, 3-limit assembly, 4-workpiece, 31-nut, 32-gland
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of fixture for Gear Processing, and comprise mandrel 1, axle sleeve 2 and limit assembly 3, three is by the fixation workpiece 4 that cooperatively interacts.That is, workpiece 4 is set on mandrel 1, and axle sleeve 2 is located in workpiece 4 with the gap of mandrel 1, and limit assembly 3 compresses axle sleeve 2 makes it produce deformation, thus clamping workpiece 4.
The upper end of mandrel 1 is functional areas, in three grades of step-like structures.Wherein, minimum one deck of functional areas is discoid, for carrying workpiece 4; Middle one deck of functional areas is round table-like, for arranging axle sleeve 2; The maximum layer of functional areas is cylindric, for arranging limit assembly 3.
In the present embodiment, the cone angle of the round table-like part in functional areas is more than or equal to 3 °, and is less than or equal to 5 °.Because when the cone angle size design of the round table-like part in functional areas is within the scope of this, arranging axle sleeve 2 thereon losing stressed moment can restore to the original state, and automatically pops up, and removes the gripping orientation to workpiece 4, facilitates staff to take out workpiece 4.
Can produce deformation in order to clamping workpiece 4 in order to stressed, axle sleeve 2 is made for elastomeric material.In the present embodiment, the material of axle sleeve 2 is preferably spring steel.
Axle sleeve 2 is coaxial with mandrel 1, and it is axially run through, and is sheathed on the round table-like part in functional areas.
Matching with the outside of the round table-like part in functional areas in the inner side of axle sleeve 2, matches outside it with the inner side of workpiece 4 endoporus.Such design makes axle sleeve 2 can smooth and easy slip in workpiece 4 gap with mandrel 1, after axle sleeve 2 produces deformation simultaneously, inside and outside it, both sides can be adjacent to workpiece 4 and mandrel 1 respectively completely, fully fill space between the two, thus provide best fixed effect.
The internal diameter of axle sleeve about 2 both ends open is less than the diameter of upper and lower two bottom surfaces of the round table-like part in functional areas respectively, radial deformation can be produced when the outside of the stressed round table-like part along functional areas of axle sleeve 2 is glided, thus fill the gap of workpiece 4 and mandrel 1, clamping workpiece 4.
Axle sleeve 2 is provided with the breach running through its upper and lower two ends, makes it fully, equably can produce deformation when stressed, provides best fixed effect.
In the present embodiment, the wall thickness at axle sleeve 2 upper end open place is less than or equal to 5mm, and the wall thickness at lower ending opening place is more than or equal to 3mm.Such design makes axle sleeve 2 when losing stressed reinstatement, can automatically pop up better.
Limit assembly 3 is positioned at axle sleeve 2 upper end open place, makes it produce deformation by compressing axle sleeve 2.
In the present embodiment, limit assembly 3 comprises nut 31, is correspondingly provided with the screw thread matched with nut 31 in the outside of functional areas maximum layer.Staff, by tightening nut 31, oppresses axle sleeve 2 slide downward, thus produces deformation clamping workpiece 4.
In order to avoid firmly uneven when nut 31 directly compresses axle sleeve 2, cause axle sleeve 2 position to occur crooked, affect fixed effect, limit assembly 3 also comprises gland 32.Gland 32 is between nut 31 and axle sleeve 2, and coaxial with mandrel 1; The external diameter of gland 32 is greater than the internal diameter of axle sleeve 2.
In the present embodiment, the external diameter of nut 31 and gland 32 is all less than the internal diameter of workpiece 4 endoporus, makes staff need not take out nut 31 and gland 32 can take, put workpiece 4 like a cork.
The fixture for Gear Processing that the embodiment of the present invention provides, its operation principle is roughly as follows:
(1) first axle sleeve 2, gland 32 and nut 31 are assembled on mandrel 1 successively from bottom to top, then workpiece 4 is placed on mandrel 1 through nut 31, gland 32 and axle sleeve 2 successively.
(2) staff's tightening nut 31, its pressure on axle sleeve 2, forces axle sleeve 2 slide downward by gland 32 stepless action.Because the size inside axle sleeve 2 is less than the size of the round table-like portion outboard in mandrel 1 functional areas, so axle sleeve 2 produces radial deformation in the process of sliding simultaneously, fill the space between workpiece 4 and mandrel 1 gradually, final clamping workpiece 4.
(3) now, can the workpiece 4 be fixed on mandrel 1 be processed.
(4) after machining, staff outwards winding nut 31, and axle sleeve 2 restores to the original state and automatically pops up.Staff need not unload lower nut 31, gland 32 and axle sleeve 2, directly takes out workpiece 4.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1., for a fixture for Gear Processing, it is characterized in that:
Comprise mandrel, axle sleeve and limit assembly;
The upper end of described mandrel is functional areas, in three grades of step-like structures;
Minimum one deck of described functional areas is discoid, for carrying workpiece;
Middle one deck of described functional areas is round table-like, for arranging axle sleeve;
The maximum layer of described functional areas is cylindric, for arranging limit assembly;
Described axle sleeve is that elastomeric material is made, by stressed generation deformation in order to clamping workpiece; Described axle sleeve is coaxial with mandrel, and it is axially run through, and is sheathed on the round table-like part in described functional areas; Matching with the outside of the round table-like part in functional areas in the inner side of described axle sleeve, matches outside it with the inner side of inner hole of workpiece; The internal diameter of the upper and lower both ends open of described axle sleeve is less than the diameter of upper and lower two bottom surfaces of the round table-like part in functional areas respectively;
Described limit assembly is positioned at axle sleeve upper end open place, makes it produce deformation by compressing axle sleeve.
2. fixture according to claim 1, is characterized in that: described axle sleeve is provided with the breach running through its upper and lower two ends.
3. fixture according to claim 1 and 2, is characterized in that: the material of described axle sleeve is spring steel.
4. fixture according to claim 1, is characterized in that: the cone angle of the round table-like part in described functional areas is more than or equal to 3 °, and is less than or equal to 5 °.
5. fixture according to claim 4, is characterized in that: the wall thickness at described axle sleeve upper end open place is less than or equal to 5mm, and the wall thickness at lower ending opening place is more than or equal to 3mm.
6. fixture according to claim 1, is characterized in that: described limit assembly comprises nut, is correspondingly provided with in the outside of described functional areas maximum layer the screw thread matched with nut.
7. fixture according to claim 6, is characterized in that: described limit assembly also comprises gland, between nut and axle sleeve, and coaxial with mandrel; The external diameter of described gland is greater than the internal diameter of axle sleeve.
8. fixture according to claim 7, is characterized in that: the external diameter of described nut and gland is all less than the internal diameter of inner hole of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626053.9A CN105149701A (en) | 2015-09-28 | 2015-09-28 | Clamp for gear machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626053.9A CN105149701A (en) | 2015-09-28 | 2015-09-28 | Clamp for gear machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105149701A true CN105149701A (en) | 2015-12-16 |
Family
ID=54790903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510626053.9A Pending CN105149701A (en) | 2015-09-28 | 2015-09-28 | Clamp for gear machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105149701A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1016483A2 (en) * | 1998-12-28 | 2000-07-05 | Wilhelm Fette GmbH | Hob and mandrel assembly |
| CN1943948A (en) * | 2006-11-14 | 2007-04-11 | 贵州群建齿轮有限公司 | Core shaft clamp for machining disc type gear |
| CN202517149U (en) * | 2012-02-03 | 2012-11-07 | 常州信息职业技术学院 | Gear shaving clamp |
| CN203197410U (en) * | 2013-04-12 | 2013-09-18 | 柳州正菱重型数控机床有限公司 | Gear hobbing fixture |
| CN203396382U (en) * | 2013-07-15 | 2014-01-15 | 重庆蓝黛动力传动机械股份有限公司 | Simple clamp for detection of tooth ring |
| CN203401395U (en) * | 2013-07-05 | 2014-01-22 | 贵州航天精工制造有限公司 | External grinding tool used for sleeve type part |
| CN203664868U (en) * | 2014-01-17 | 2014-06-25 | 重庆渝青机械配件制造有限公司 | Gear grinding clamp |
| CN104384624A (en) * | 2014-10-30 | 2015-03-04 | 刘文生 | Cylindrical mandrel hobbing fixture |
-
2015
- 2015-09-28 CN CN201510626053.9A patent/CN105149701A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1016483A2 (en) * | 1998-12-28 | 2000-07-05 | Wilhelm Fette GmbH | Hob and mandrel assembly |
| CN1943948A (en) * | 2006-11-14 | 2007-04-11 | 贵州群建齿轮有限公司 | Core shaft clamp for machining disc type gear |
| CN202517149U (en) * | 2012-02-03 | 2012-11-07 | 常州信息职业技术学院 | Gear shaving clamp |
| CN203197410U (en) * | 2013-04-12 | 2013-09-18 | 柳州正菱重型数控机床有限公司 | Gear hobbing fixture |
| CN203401395U (en) * | 2013-07-05 | 2014-01-22 | 贵州航天精工制造有限公司 | External grinding tool used for sleeve type part |
| CN203396382U (en) * | 2013-07-15 | 2014-01-15 | 重庆蓝黛动力传动机械股份有限公司 | Simple clamp for detection of tooth ring |
| CN203664868U (en) * | 2014-01-17 | 2014-06-25 | 重庆渝青机械配件制造有限公司 | Gear grinding clamp |
| CN104384624A (en) * | 2014-10-30 | 2015-03-04 | 刘文生 | Cylindrical mandrel hobbing fixture |
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Application publication date: 20151216 |