CN201735911U

CN201735911U - Self-centering micro-taper sleeve jig for gear

Info

Publication number: CN201735911U
Application number: CN201020200294XU
Authority: CN
Inventors: 曾光荣·巴拿巴
Original assignee: ZENGGUANGRONG BARNABAS
Current assignee: ZENGGUANGRONG BARNABAS
Priority date: 2010-05-24
Filing date: 2010-05-24
Publication date: 2011-02-09
Anticipated expiration: 2020-05-24

Abstract

The utility model provides a self-centering micro-taper sleeve gear-cutting jig for a gear hole, which is designed for making up the deficiency of a self-centering gear ball jig for centering a small-diameter gear. A mandrel of the jig is provided with a gear blank and a micro-taper centering sleeve; the upper end of the micro-taper centering sleeve is pressed with a plate-shaped spring; and the taper surface of the micro-taper centering sleeve is tightly inserted into the inner hole of the gear blank, so that the gear blank is fixed between a bottom plate and the micro-taper centering sleeve. When a gland is stressed to press the plate-shaped spring, the micro-taper centering sleeve is propped in the hole of the gear blank, thus precisely centering the gear blank. When the gland continues to press through a pressing ring on the gear blank, the gear blank is clamped with strong force. The advantages are as follows: the jig can realize precise centering, even the spiral gear can be clamped with strong force, and the gear cutting processing of multiple gear blanks can be conducted simultaneously; and the frequent replacement of the mandrel of the jig is unnecessary. The jig has simple structure and low manufacturing cost, saves time and labor force, and simultaneously has the trend of becoming the standard component of the self-centering jig.

Description

The little tapered sleeve anchor clamps of gear self-centering

Technical field

The utility model relate to hole between a kind of gear hole and the anchor clamps very little cut the external tooth anchor clamps, can be used for gear hobbing, gear shaping, shaving, gear honing, bevel gear and worm gear cutting and keep the part processing of the high concentricitys of any inside and outside circle needs such as tooth base turning of cylindrical and endoporus concentricity; If make with the measurer accuracy tolerance, also be suitable for roll flute.

Background technology

In Gear Processing, make high class gear, just must the every fabrication error of control.Mainly be to do the location benchmark during Gear Processing, guarantee that therefore precision centering is to improve accuracy of gear most important method with centre bore and end face.

At present in the prior art, there are various gear hole centralizers, widely used is the anchor clamps that axle is mixed centering sleeve, or the micro taper axle joins the self-centering fixture of resilient sleeve, as the German patent DE 4,032 of ZIMMERMANN, 881 (A1) (1992), the international monopoly W083/03 of U.S. HUNKELER, the anchor clamps that 562 (nineteen eighty-threes) were put down in writing, centering precision is in 0.005 millimeter (roll flute), 0.020 millimeter (accurate gear hobbing) and 0.050 millimeter (staying the roll flute base) scope.The employing gear centering surface that also has is exactly to turn round the axle center, U.S. Pat 6 as people such as the German Liebherr-Verzahntechnik GmbH ROLF of company, 461,089B2 (2002), people's such as the U.S. The Gleason Works WILLIAMD of company patent 5,797,605 (1998), people's such as NEIL United States Patent (USP) 5,251,510 (1993) is put down in writing, its centering precision is still in 0.005-0.020 millimeter scope, but workpiece loading and unloading and replacing centring element trouble, the anchor clamps manufacturing cost is high, and special implement is more wanted in conical bore centering.

There is total defective in the anchor clamps of above prior art:

1. hole hour is not easy nature with gear self-centering ball clamp and feels relieved between large gear endoporus and the anchor clamps axle;

2. professional component is wanted in conical bore centering;

3. generally be difficult for many gear hobbings;

4. anchor clamps manufacturing cost height;

5. when single and mini-batch production is produced, must time-consuming often, the anchor clamps of centering workpiece, even replacing arduously.

Summary of the invention

The utility model is to remedy the deficiency of gear self-centering ball clamp for the centering of small-bore gear, and provide a kind of cutting anchor clamps that can process single-piece or many tooth bases, these anchor clamps are particularly suitable for the powerful cutting processing of small-bore canine tooth wide gear, can be fast and precision centering, the powerful tooth base that clamps; These anchor clamps are felt relieved gear naturally, and centring element can be controlled at very high degree of precision.

For achieving the above object, the utility model is realized by the following technical solutions:

The utility model comprises anchor clamps axle, gland, disk spring, micro taper centring sleeve, tooth base, tooth base trim ring, chassis.On the anchor clamps axle, be set with tooth base and micro taper centring sleeve.Be pressed with disk spring in micro taper centring sleeve upper end, the upper end of disk spring is a gland, and the conical surface of micro taper centring sleeve is seated in the endoporus of tooth base, and the lower surface of tooth base is placed on the chassis, and the tooth base is fixed between chassis and the micro taper centring sleeve.Be provided with the tooth base trim ring that also is sleeved on the anchor clamps axle in the outside of micro taper centring sleeve and disk spring.

The utility model has the advantages that:

1, these anchor clamps are changed centring elements such as micro taper centring sleeve easily, and adapt to the big facewidth, small-bore, big-and-middle-sized helical gear processing easily.Can feel relieved fast and accurately, the powerful clamping, even helical gear also can powerfully clamp, thereby remedies the deficiency of gear self-centering ball clamp in the centering of fine pore gear.

2, these anchor clamps can guarantee the centering precision of accurate gear hobbing; If make with the measurer accuracy tolerance, also be suitable for roll flute.

3, as long as faces parallel height (corase grind in case of necessity) just can be done three many overlapping gear hobbings with internal gear, the process time that can save helical gear exponentially.

4, the anchor clamps axle needn't often be changed, and clamp structure is simple, and it is convenient to change the micro taper centring sleeve, saves time, laborsaving, cheap for manufacturing cost.

5, clamp structure is simple, and is cheap for manufacturing cost, of many uses as bolt, spring, can become the standard component series of self-centering fixture.

6, these anchor clamps make the roll flute surplus more abundant because of the centering precision height, thereby have reduced the emergency risk of roll flute quality.

7, the utility model can be done the cutting processing of many tooth bases simultaneously, and guarantees the uniformity and the precision of processing tooth base.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the undressed preceding relaxation state of the little tapered sleeve anchor clamps of the utility model self-centering.

Fig. 2 is the initial state schematic diagram that the little tapered sleeve anchor clamps of the utility model self-centering step up the powerful cutting in back.

Fig. 3 is many gear hobbing machining state schematic diagrames.

The accompanying drawing mark:

1. anchor clamps axle; 2. gland; 3. disk spring; 4. micro taper centring sleeve; 5. tooth base trim ring; 6. tooth base; 7. briquetting; 8. nut; 9. chassis.

The specific embodiment

Referring to Fig. 1 and Fig. 2, be the structure chart of single-piece tooth base processing.Fig. 1 processes the not structure chart of clamped condition of nipper base for the tooth base, and what Fig. 2 represented is the structure chart that the tooth base adds the clamped condition in man-hour.As we know from the figure, the utility model comprises anchor clamps axle 1, gland 2, disk spring 3, micro taper centring sleeve 4, tooth base trim ring 5, tooth base 6, briquetting 7, nut 8, chassis 9.On anchor clamps axle 1, be set with tooth base 6 and micro taper centring sleeve 4.Be pressed with disk spring 3 in micro taper centring sleeve 4 upper ends, a briquetting 7 of using as pad is arranged between the gland 2 of disk spring 3 and upper end, the conical surface of micro taper centring sleeve 4 is seated in the endoporus of tooth base 6, and the full cone angle of micro taper centring sleeve is the 3-20 degree.The lower surface of tooth base 6 is placed on the chassis 9, and tooth base 6 is fixed between chassis 9 and the micro taper centring sleeve 4.Described gland 2 upper ends are provided with nut 8, and nut 8 is screwed in the thread segment on anchor clamps axle 1 top.Be provided with a tooth base trim ring 5 in the outside of micro taper centring sleeve 4, disk spring 3 and briquetting 7.

See Fig. 1, before nut 8 screws, have clearance C 1 between the end face of gland 2 and tooth base trim ring 5, disk spring 3 is in than relaxed state.See Fig. 2, when nut 8 is screwed, gland 2 compresses disk spring 3 by briquetting 7, micro taper centring sleeve 4 is held out against equably in the endoporus of tooth base 6, tooth base trim ring 5 is also held out against downwards in tooth base 6 upper surfaces, thereby make tooth base 6 stressed even, guarantee that tooth base 6 is accurately concentric with anchor clamps axle 1, under the force action on micro taper centring sleeve 4, tooth base trim ring 5 and chassis 9, make tooth base 6 precision centerings.When gland 2 continued to compress by the tooth base trim ring 5 above the tooth base 6, tooth base 6 was realized powerful the clamping.

Fig. 3 is the working state schematic representation that the utility model is used for many overlapping gear hobbings, and the utility model can be processed single-piece tooth base, also can process many tooth bases as required simultaneously, and processing tooth base 6 is two among the figure.Because the tooth base, has only the big gear of the facewidth just to be fit to many overlapping gear hobbings at interval, general overlapping tooth base is no more than 3.Particularly the helical gear gear hobbing can reduce the cutting time exponentially.In Fig. 3, what Fig. 3 A showed is that two overlapping tooth bases clamp the rolling cut state, and what Fig. 3 B showed is relaxation state before the processing, and C2 and C3 are the gaps, tooth base 6 upper surface before compressing.In the utility model tapered sleeve anchor clamps shown in Figure 3, the quantity of processing tooth base 6 can be 1-3 spare.The quantity of disk spring 3 and micro taper centring sleeve 4 is identical with the quantity of the tooth base 6 of processing, that is: when tooth base 6 was one, tooth base 6 was fixing by a disk spring 3 and a micro taper centring sleeve 4; When tooth base 6 is two, fixing between the last lower tooth base 6 by two disk springs 3 and two micro taper centring sleeves 4; When tooth base 6 is three, fixing between the last lower tooth base 6 by three disk springs 3 and three micro taper centring sleeves 4.

The utility model can reduce cutting when processing many tooth bases simultaneously man-hour, particularly helical gear gear hobbing can reduce the cutting time exponentially, have improved working (machining) efficiency, have saved the man power and material, and guarantee the uniformity and the precision of processing tooth base.

Claims

1. little tapered sleeve anchor clamps of gear self-centering, it is characterized in that: it comprises anchor clamps axle, gland, disk spring, micro taper centring sleeve, tooth base, tooth base trim ring, chassis; On the anchor clamps axle, be with tooth base and micro taper centring sleeve; Be pressed with disk spring in micro taper centring sleeve upper end, the upper end of disk spring is a gland, and the conical surface of micro taper centring sleeve is seated in the endoporus of tooth base, and the lower surface of tooth base is placed on the chassis, and the tooth base is fixed between chassis and the micro taper centring sleeve; Be with tooth base trim ring in the outside of micro taper centring sleeve and disk spring.

2. the little tapered sleeve anchor clamps of gear self-centering according to claim 1 is characterized in that: the full cone angle of micro taper centring sleeve is the 3-20 degree.

3. the little tapered sleeve anchor clamps of gear self-centering according to claim 1 is characterized in that: a top briquetting is arranged between described disk spring and the gland.

4. the little tapered sleeve anchor clamps of gear self-centering according to claim 1 is characterized in that: described gland upper end is provided with nut, and nut is screwed in the thread segment on anchor clamps axle top.

5. the little tapered sleeve anchor clamps of gear self-centering according to claim 1 is characterized in that: described tooth base is one, and the tooth base is fixed by a disk spring and a micro taper centring sleeve.

6. the little tapered sleeve anchor clamps of gear self-centering according to claim 1 is characterized in that: described tooth base is two, is fixed by two disk springs and two micro taper centring sleeves between the last lower tooth base.

7. the little tapered sleeve anchor clamps of gear self-centering according to claim 1 is characterized in that: described tooth base is three, is fixed by three disk springs and three micro taper centring sleeves between the last lower tooth base.