CN204700390U - The numerical control gear-hobbing clamp of gear shaft - Google Patents

The numerical control gear-hobbing clamp of gear shaft Download PDF

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Publication number
CN204700390U
CN204700390U CN201520472090.4U CN201520472090U CN204700390U CN 204700390 U CN204700390 U CN 204700390U CN 201520472090 U CN201520472090 U CN 201520472090U CN 204700390 U CN204700390 U CN 204700390U
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China
Prior art keywords
base
cart
workpiece
clamping column
positioning seat
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.)
Active
Application number
CN201520472090.4U
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Chinese (zh)
Inventor
齐正兴
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.)
Zhuzhou Gear Co Ltd
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Zhuzhou Gear Co Ltd
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Filing date
Publication date
Application filed by Zhuzhou Gear Co Ltd filed Critical Zhuzhou Gear Co Ltd
Priority to CN201520472090.4U priority Critical patent/CN204700390U/en
Application granted granted Critical
Publication of CN204700390U publication Critical patent/CN204700390U/en
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Abstract

The utility model relates to a kind of numerical control gear-hobbing clamp of gear shaft, comprise that base, workpiece are top, spacer, positioning seat, help pull a cart, tapered sleeve and clamping column, workpiece is top to be arranged on the Centromedian boss of base, positioning seat is located by seam and base engagement and is fixedly connected by screw and base, and its tip platform lays inverted tapered sleeve and position-arresting disk.To help pull a cart external cylindrical surface and positioning seat inner hole, by spacer, screw through base and pull bar rigid attachment, have three uniform circular ports in upper end of helping pull a cart, the clamping column being with the conical surface and the face of cylinder is all housed in each circular port.The utility model relies on the top and top direct positioning workpieces of tail stock for machine tool of workpiece, by clamping column, help pull a cart, tapered sleeve, positioning seat, base connect with platen and transmit machine power, substantially increase clamping reliability, the clamping column also by changing different length carrys out the processing of real homologous series workpiece.

Description

The numerical control gear-hobbing clamp of gear shaft
Technical field
The utility model relates to gear machining technology field, particularly relates to the numerical control gear-hobbing clamp of gear shaft.
Background technology
Gear hobbing is the main manufacturing process of one obtaining gear, and gear shaft is as the widely used gear drive part of one, teeth portion subsequent fine machining accuracy depends on gear hobbing precision to a certain extent, gear hobbing precision mainly ensures by machine tool accuracy and clamp precision, if clamp precision does not reach, machine tool accuracy is high again, the gear hobbing precision of gear shaft also cannot improve, this is concerning particularly important large module gear axle, due to large module gear axle, in general the diameter of axle is larger, heavier-weight, although as adopted the simple convenient mounting and clamping of quincunx centre, but multitool gear hobbing need be adopted to reduce rolling cut power to avoid side set or to forge a knife concerning large modulus axle tooth class workpiece, inapplicable processing economy, adopt jacket type fixture centering precision high, but it is corresponding also high to hold surface jitter requirement to axle toothholder, many weeks, for the large modulus axle tooth of heaviness, the high requirement of beating of finish turning guarantee clamping face is comparatively difficult.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, provides the gear shaft numerical control gear-hobbing clamp that a kind of structure is simple, easy to use, reliability is high.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of numerical control gear-hobbing clamp of gear shaft, comprise that base 1, workpiece are top 4, spacer 3, positioning seat 5, help pull a cart 6, tapered sleeve 8 and clamping column 9, workpiece top 4 is arranged on the Centromedian boss of base 1; Positioning seat 5 to be coordinated with base 1 by seam is located and is fixedly connected by screw and base 1, the position-arresting disk 10 its tip platform laid inverted tapered sleeve 8 and is fixedly connected with it by screw; To help pull a cart 6 external cylindrical surfaces and positioning seat 5 inner hole, by spacer 3, screw through base 1 and pull bar 2 rigid attachment, three uniform circular ports are had in 6 upper ends of helping pull a cart, the clamping column 9 on the band conical surface and the face of cylinder is all housed in each circular port, in the longitudinal hole of clamping column 9, straight pin 7 is housed, clamping column 9 conical surface contacts with tapered sleeve 8 inner conical surface, and its other end face of cylinder contacts with by the external cylindrical surface of holding workpiece.
One of preferably, help pull a cart 6 top anti-bits plate 11 is housed.
One of preferably, in position-arresting disk 10, round table surface and the outer round table surface of tapered sleeve 8 leave gap.
The utility model relies on the top and top direct positioning workpieces of tail stock for machine tool of workpiece, by clamping column, help pull a cart, tapered sleeve, positioning seat and base connect with platen and transmit lathe motion of main shaft, achieve unifying datum, reduce error, reduce retaining part and to beat requirement, substantially increase clamping reliability, improve teeth portion precision, can the processing of real homologous series workpiece by changing different length clamping column.
Accompanying drawing explanation
Fig. 1 is the utility model longitudinal profile structural representation.
Fig. 2 is the utility model longitudinal profile partial enlarged drawing.
Fig. 3 is that the utility model is helped pull a cart longitudinal profile schematic diagram.
Fig. 4 is the utility model clamping column longitudinal profile schematic diagram.
In figure: 1-base, 2-pull bar, 3-spacer, 4-workpiece is top, 5-positioning seat, 6-to help pull a cart, 7-straight pin, 8-tapered sleeve, 9-clamping column, 10-position-arresting disk, 11-anti-bits plate, 12-tail stock for machine tool is top.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As shown in figures 1-4, the numerical control gear-hobbing clamp of gear shaft comprises that base 1, workpiece are top 4, spacer 3, positioning seat 5, help pull a cart 6, tapered sleeve 8 and clamping column 9, workpiece top 4 is arranged on the Centromedian boss of base 1; Positioning seat 5 to be coordinated with base 1 by seam locates, and ensure that its inner cylinder face and workpiece are top 4 concentric, positioning seat 5 is fixedly connected by screw and base 1; The position-arresting disk 10 its tip platform laid inverted tapered sleeve 8 and is fixedly connected with it by screw.
Help pull a cart in 6 and be provided with certain conical surface guiding workpiece, ensureing that workpiece is top heads in gear shaft workpiece lower center hole, its outer round table surface to coordinate with positioning seat 5 from central authorities through positioning seat 5 by spacer 3 and screw and pull bar 2 rigid attachment by a fit clearance, thus realization is helped pull a cart and to be connected with lathe oil cylinder.Have three uniform circular ports in 6 upper ends of helping pull a cart, the clamping column 9 on the band conical surface and the face of cylinder is all housed in each circular port, in the longitudinal hole of clamping column 9, straight pin 7 is housed, is used for limiting its radial stroke and rotation.Clamping column 9 conical surface contacts with tapered sleeve 8 inner conical surface, and its other end face of cylinder contacts with by the external cylindrical surface of holding workpiece.
Help pull a cart 6 top anti-bits plate 11 is housed, enter workspace to prevent iron filings.
In position-arresting disk 10, round table surface and the outer round table surface of tapered sleeve 8 leave certain interval, in order to limit tapered sleeve 8 maximum radial, axial mobility, and prevent iron filings from entering.
After gear shaft workpiece is felt relieved with top 12 actings in conjunction of tail stock for machine tool by workpiece top 4 fixing on base 1, start lathe hydraulic jack to be moved down by pull bar 2,6 drive clamping columns 9 of helping pull a cart, clamping column 9 is by realizing moving radially with tapered sleeve 8 cone match, thus clamping work pieces forms rigid body.Machine power, via base 1, positioning seat 5, passes to tapered sleeve 8 and clamping column 9 by frictional force, can ensure that workpiece and machine tool chief axis synchronous axial system carry out gear hobbing process.Owing to leaving gap between position-arresting disk 10 and tapered sleeve 8, before clamping work pieces, tapered sleeve 8 and three clamping columns 9 float with gear shaft excircle of workpiece of feeling relieved thus avoid interfering.
The utility model is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make various change under the prerequisite not departing from the utility model aim.

Claims (3)

1. a numerical control gear-hobbing clamp for gear shaft, comprises base (1), workpiece top (4), spacer (3), positioning seat (5), help pull a cart (6), tapered sleeve (8) and clamping column (9), it is characterized in that:
A) described workpiece top (4) is arranged on base (1) Centromedian boss;
B) described positioning seat (5) to be coordinated with base (1) by seam and locates and be fixedly connected by screw and base (1), the position-arresting disk (10) its tip platform laid inverted tapered sleeve (8) and is fixedly connected with it by screw;
C) to help pull a cart (6) external cylindrical surface and positioning seat (5) inner hole, by spacer (3), screw through base (1) and pull bar (2) rigid attachment, three uniform circular ports are had in (6) upper end of helping pull a cart, the clamping column (9) on the band conical surface and the face of cylinder is all housed in each circular port, straight pin (7) is housed in the longitudinal hole of clamping column (9), clamping column (9) conical surface contacts with tapered sleeve (8) inner conical surface, and its other end face of cylinder contacts with by the external cylindrical surface of holding workpiece.
2. the numerical control gear-hobbing clamp of gear shaft according to claim 1, is characterized in that: on described top of helping pull a cart (6), anti-bits plate (11) is housed.
3. the numerical control gear-hobbing clamp of gear shaft according to claim 1, is characterized in that: described position-arresting disk (10) interior round table surface and tapered sleeve (8) outer round table surface leave gap.
CN201520472090.4U 2015-06-30 2015-06-30 The numerical control gear-hobbing clamp of gear shaft Active CN204700390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520472090.4U CN204700390U (en) 2015-06-30 2015-06-30 The numerical control gear-hobbing clamp of gear shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520472090.4U CN204700390U (en) 2015-06-30 2015-06-30 The numerical control gear-hobbing clamp of gear shaft

Publications (1)

Publication Number Publication Date
CN204700390U true CN204700390U (en) 2015-10-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520472090.4U Active CN204700390U (en) 2015-06-30 2015-06-30 The numerical control gear-hobbing clamp of gear shaft

Country Status (1)

Country Link
CN (1) CN204700390U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105149703A (en) * 2015-09-30 2015-12-16 陕西法士特齿轮有限责任公司 Externally-tightening and quick-changing hobbing tool for shafts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105149703A (en) * 2015-09-30 2015-12-16 陕西法士特齿轮有限责任公司 Externally-tightening and quick-changing hobbing tool for shafts
CN105149703B (en) * 2015-09-30 2017-12-05 陕西法士特齿轮有限责任公司 A kind of axle external-expanding type quick change gear hobbing tooling

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