CN201644804U

CN201644804U - Circular arc machining device

Info

Publication number: CN201644804U
Application number: CN201020158928XU
Authority: CN
Inventors: 李瑞龙; 陈观带
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-08
Filing date: 2010-04-08
Publication date: 2010-11-24
Anticipated expiration: 2020-04-08

Abstract

The utility model provides a circular arc machining device which can be used for machining an internally spherical surface and an externally spherical surface with fast speed and high precision. The circular arc machining device comprises a transmission seat, a first eccentric wheel device, a second eccentric wheel device and a turntable provided with a turning tool clamp; a first output shaft and a second output shaft which are mutually parallel and rotate in the same direction and at the same speed are arranged on the transmission seat; a central shaft in the first eccentric wheel device is connected with the first output shaft, and a central shaft of the second eccentric wheel device is connected with the second output shaft; an eccentric shaft of the first eccentric wheel device and a first shaft hole in the turntable are arranged together, and an eccentric shaft of the second eccentric wheel device and a second shaft hole in the turntable are arranged together. The utility model is convenient to install and low in manufacturing cost, can be used for rapidly machining an internal circular arc and an external circular arc with high precision and good glossiness on the common lathe instead of circular arc machining of a numerical control lathe, thereby greatly improving the machining efficiency.

Description

Arc shaping device

Technical field

The utility model relates to a kind of circular arc machining tool that is used for lathe.

Background technology

On engine lathe in the turning or the spherical outside surface workpiece, common have three kinds of processing methods:

The one, use the formed turning tool method; The 2nd, with semi arch lathe tool both hands control method; The 3rd, use the pattern method.Because cutter head is too wide, add that the round sword of cutter head is difficult to grind circularity accurately during with forming-tool, blade and workpiece contact-making surface are big, are easy to generate vibration, and dimensional accuracy is difficult to guarantee.Both hands control method more is difficult to coordination because the both hands feed is moved, and sometimes fast and sometimes slow, the track that point of a knife is passed by is difficult to conform to the circularity that sphere requires, surface irregularity, and surface roughness does not reach requirement.Though and pattern method machining accuracy is higher, need to change lathe saddle, and its processing template construct cost is big, template is not general, and the processing arc size can not be regulated.

More than three kinds of methods separately shortcoming is all arranged.

Summary of the invention

The purpose of this utility model provides a kind of arc shaping device that can process Internal Spherical Surface and spherical outside surface fast, accurately.

For achieving the above object, the utility model has been taked following technical scheme:

Arc shaping device is made of retainer, first eccentric wheel apparatus, second eccentric wheel apparatus and rotating disk that the lathe tool anchor clamps are housed; Described retainer is provided with parallel to each other, in the same way first output shaft and second output shaft that rotates with speed; The central shaft of described first eccentric wheel apparatus is connected with first output shaft, and the central shaft of second eccentric wheel apparatus is connected with second output shaft; First axis hole on the eccentric shaft of first eccentric wheel apparatus and the rotating disk is installed together, and second axis hole on the eccentric shaft of second eccentric wheel apparatus and the rotating disk is installed together; Between the eccentric shaft of the eccentric shaft of described first eccentric wheel apparatus, second eccentric wheel apparatus apart from line, parallel and equal with between first output shaft, second output shaft apart from line; Between the eccentric shaft of described first eccentric wheel apparatus, first output shaft apart from line, parallel and equal with between the eccentric shaft of second eccentric wheel apparatus, second output shaft apart from line.

Operation principle of the present utility model is as follows: utilize the parallel-crank mechanism principle, when first output shaft and second output shaft rotate with speed in the same way, by first eccentric wheel apparatus and second eccentric wheel apparatus, do the circumferential translation of certain radius with driving rotating disk.Fixing lathe tool on rotating disk, and this device is installed on the little supporting plate of lathe the processing of circular arc and external arc in can realizing.

Described retainer can adopt following structure: by base, be installed in identical first worm gear and second worm gear of specification of base inside, and constitute with worm screw that first worm gear and second worm gear cooperate simultaneously; The axis of first worm gear is first output shaft; The axis of second worm gear is second output shaft; The end protuberate basic unit of described worm screw is connected with handle.

Adjustable for the radius size that makes the circular arc that processes, described first eccentric wheel apparatus and second eccentric wheel apparatus can adopt following structure: be made of wheel disc, fixture block and eccentric shaft; Be provided with the T-shape groove on wheel disc, fixture block is entrapped in the above-mentioned T-shape groove, is fixed together by screw and eccentric shaft.

In addition, dial can be set on worm screw; Also can on retainer, be provided for setting the scale of arc radius.

And be the anti-cutting impact capacity that strengthens rotating disk, the above eccentric shaft preferred discotic axle.

Easy for installation, the low cost of manufacture of the utility model, can be on engine lathe rapid processing go out precision height, inside and outside circular arc that fineness is good, replace the lathe in machining circular arc, improve working (machining) efficiency greatly.

Description of drawings

Fig. 1 is the structure diagram of the utility model embodiment;

Fig. 2 is the structure cutaway view of the utility model embodiment;

Fig. 3 is the principle sketch of the utility model embodiment.

Description of reference numerals: 1-retainer; 2-first eccentric wheel apparatus; 3-second eccentric wheel apparatus; The 4-rotating disk; The 5-base; 6-first worm gear; 7-second worm gear; The 8-worm screw; The 9-handle; The 10-dial; The 11-wheel disc; The 12-fixture block; The 13-eccentric shaft; 14-T-shape groove; 15-first axis hole; 16-second axis hole; 17-lathe tool anchor clamps.

The specific embodiment

Below in conjunction with drawings and Examples the utility model content is described further.

As shown in Figure 1, arc shaping device is made of retainer 1, first eccentric wheel apparatus 2, second eccentric wheel apparatus 3 and rotating disk 4.

As shown in Figure 2, wherein, retainer 1 by base 5, be installed in identical first worm gear 6 and second worm gear 7 of specification of base 5 inside, and constitute with worm screw 8 that first worm gear 6 and second worm gear 7 cooperate simultaneously; The axis of first worm gear 6 is first output shaft; The axis of second worm gear 7 is second output shaft; The end protuberate basic unit 5 of worm screw 8 is connected with handle 9.Worm screw 8 is provided with dial 10.

First eccentric wheel apparatus 2 has adopted identical structure with second eccentric wheel apparatus 3: be made of wheel disc 11, fixture block 12 and eccentric shaft 13; Be provided with T-shape groove 14 on wheel disc 11, fixture block 12 is entrapped in the T-shape groove 14, is fixed together by screw and eccentric shaft 13.The eccentric shaft 13 of present embodiment is the plate-like axle.

First axis hole 15 on the eccentric shaft of first eccentric wheel apparatus 2 and the rotating disk 4 is installed together, and second axis hole 16 on the eccentric shaft of second eccentric wheel apparatus 3 and the rotating disk 4 is installed together.Lathe tool anchor clamps 17 are installed on rotating disk 4.

As Fig. 1, shown in Figure 3, make between the eccentric shaft of eccentric shaft, second eccentric wheel apparatus of first eccentric wheel apparatus apart from line DC, parallel and equal with between first output shaft, second output shaft apart from line AB; Make between the eccentric shaft, first output shaft of first eccentric wheel apparatus apart from line AD, parallel and equal with between the eccentric shaft of second eccentric wheel apparatus, second output shaft apart from line BC.

What this specification was enumerated is better embodiment of the present utility model only, and all equivalent technologies conversion of being done under operation principle of the present utility model and thinking all are considered as protection domain of the present utility model.

Claims

1. arc shaping device is characterized in that: be made of retainer, first eccentric wheel apparatus, second eccentric wheel apparatus and rotating disk that the lathe tool anchor clamps are housed; Described retainer is provided with parallel to each other, in the same way first output shaft and second output shaft that rotates with speed; The central shaft of described first eccentric wheel apparatus is connected with first output shaft, and the central shaft of second eccentric wheel apparatus is connected with second output shaft; First axis hole on the eccentric shaft of first eccentric wheel apparatus and the rotating disk is installed together, and second axis hole on the eccentric shaft of second eccentric wheel apparatus and the rotating disk is installed together; Between the eccentric shaft of the eccentric shaft of described first eccentric wheel apparatus, second eccentric wheel apparatus apart from line, parallel and equal with between first output shaft, second output shaft apart from line; Between the eccentric shaft of described first eccentric wheel apparatus, first output shaft apart from line, parallel and equal with between the eccentric shaft of second eccentric wheel apparatus, second output shaft apart from line.

2. arc shaping device as claimed in claim 1, it is characterized in that: retainer adopts following structure: by base, be installed in identical first worm gear and second worm gear of specification of base inside, and constitute with worm screw that first worm gear and second worm gear cooperate simultaneously; The axis of first worm gear is first output shaft; The axis of second worm gear is second output shaft; The end protuberate basic unit of described worm screw is connected with handle.

3. arc shaping device as claimed in claim 1 is characterized in that: first eccentric wheel apparatus and second eccentric wheel apparatus adopt following structure: be made of wheel disc, fixture block and eccentric shaft; Be provided with the T-shape groove on wheel disc, fixture block is entrapped in the above-mentioned T-shape groove, is fixed together by screw and eccentric shaft.

4. arc shaping device as claimed in claim 1 is characterized in that: be provided with dial on worm screw.

5. arc shaping device as claimed in claim 1 is characterized in that: be provided with the scale that is used to set arc radius on retainer.