CN202367288U

CN202367288U - Special fixture for machining milled spline of cam shaft

Info

Publication number: CN202367288U
Application number: CN 201120529070
Authority: CN
Inventors: 王刚; 罗开林
Original assignee: Guizhou Jonyang Kinetics Co Ltd
Current assignee: Guizhou Jonyang Kinetics Co Ltd
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2012-08-08
Anticipated expiration: 2021-12-16

Abstract

The utility model discloses a special fixture for machining a milled spline of a cam shaft. The special fixture comprises an ejector shifting workpiece which can be clamped by a claw on a lathe chuck, an ejector pin head at the top of the ejector shifting workpiece is in supported connection with one end face of the cam shaft, an ejector shifting workpiece clamping groove which can be fixed through a bolt and used for fixedly clamping a connecting key is arranged on the ejector shifting workpiece, the other end of the connecting key is arranged in a pulling ring slot of a clamping workpiece pulling ring, and a fixing hole capable of fastening the cam shaft is arranged on the clamping workpiece pulling ring. The special fixture disclosed by the utility model not only has the advantages of simple structure, rapidness in installation and convenience in material obtaining, but also has the advantages of skillful design, safety, reliability, capabilities of saving manpower and material resources and guaranteeing the machined milled spline of the cam shaft, and the like.

Description

A kind ofly be used for the special fixture that the machining cam axle mills spline

Technical field

The utility model relates to a kind of anchor clamps, particularly a kind ofly is used for the special fixture that the machining cam axle mills spline.

Background technology

At present, it all is to utilize hobcutter to process on the lathe then through camshaft is installed in that the machining cam axle mills spline, because the chuck that is equipped with on a lot of lathe is different, if the chuck diameter is too big; Cutter can't can't accomplish spline annular knurl operation near workpiece, but but on the lathe of processing parts, add man-hour; Accurately under the situation, the tolerance that the part that processes produces is not big, can not reach the processing dimension scope of part for installing and locating; Like this, often produce a large amount of waste products, not only wasted manpower and materials; Also bring unnecessary loss, can not satisfy the demand of modern production, so prior art is still perfect inadequately to enterprise.

Summary of the invention

The purpose of the utility model is: provide a kind of simple in structure, practical, draw materials conveniently, design is ingenious, clamping quick, the camshaft that guarantees processing mills that spline reaches the requirement size a kind ofly is used for the special fixture that the machining cam axle mills spline, to overcome the deficiency of prior art.

The utility model is to be constructed as follows: a kind ofly be used for the special fixture that the machining cam axle mills spline; Comprising can be by the top of the lathe chuck upper clipping claw clamping part of exchanging work; Push up exchange work the thimble head at part top and an end face apical grafting of camshaft; The top part of exchanging work is provided with and can and can fixes firmly the top of the connecting key part draw-in groove of exchanging work through bolt, and the other end of connecting key is arranged on the clamping workpiece and pulls out pulling out in the annular groove of ring, and the clamping workpiece pulls out and encircles the fixing hole that is provided with the fastening camshaft of ability.

The clamping workpiece pulls out ring and is provided with the locking screw keyhole that can pass through bolt lock cam axle.

Owing to adopted technique scheme, at first will push up an end of the part of exchanging work with the claw clamping on the lathe for machining, push up the part other end thimble head of exchanging work and tightly withstand camshaft; The camshaft other end is withstood by the thimble of lathe; Pull out ring with the clamping workpiece then camshaft is clamped in the fixing hole, with connecting key the clamping workpiece is pulled out ring at last and be connected, like this during the working shaft rotation with the top part of exchanging work; The drive camshaft rotates, and just available hobcutter is processed; Compared with prior art, simple in structure, quick for installation, the advantage easily of drawing materials that the utility model not only has, and design ingenious, safe and reliable, use manpower and material resources sparingly, guarantee that the camshaft of processing mills spline and reaches advantages such as requirement size.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is for pushing up the structural representation of the part of exchanging work;

Fig. 3 is the left view of Fig. 2;

Fig. 4 pulls out the structural representation of ring for the clamping workpiece;

Description of reference numerals: 1-pushes up the part of exchanging work, 2-thimble head, and the 3-connecting key, 4-pushes up the part draw-in groove of exchanging work, and 5-clamping workpiece pulls out ring, and 6-pulls out annular groove, 7-fixing hole, 8-locking screw keyhole, 9-camshaft.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further to specify.

The enforcement of the utility model: a kind ofly be used for the special fixture that the machining cam axle mills spline; Shown in Fig. 1～4; Comprising can be by the top of the lathe chuck upper clipping claw clamping part 1 of exchanging work; Push up the thimble head 2 at part 1 top of exchanging work and an end face apical grafting of camshaft; The top part 1 of exchanging work is provided with and can and can fixes firmly the top of the connecting key 3 part draw-in groove 4 of exchanging work through bolt, and the other end of connecting key 3 is arranged on the clamping workpiece and pulls out pulling out in the annular groove 6 of ring 5, the clamping workpiece pull out encircle 5 be provided with the fastening camshaft of ability fixing hole 7.

The clamping workpiece pulls out ring 5 and is provided with the locking screw keyhole 8 that can pass through bolt lock cam axle 9.

Push up the part 1 of exchanging work and to process its length according to the length of concrete lathe.

When using the utility model; At first push up an end of the part 1 of exchanging work with the clamping of lathe chuck upper clipping claw; The thimble head 2 that pushes up part 1 other end setting of exchanging work then withstands camshaft to be processed 9, and the other end of camshaft 9 is withstood by the thimble on the lathe, utilizes the clamping workpiece to pull out the fixing hole 7 locking camshafts 9 and an end that pushes up part 1 apical grafting of exchanging work of ring 5 then; Annular groove 6 and the top of pushing up the part 1 of the exchanging work part draw-in groove 4 usefulness connecting keys 3 of exchanging work that pull out that at last pull out ring 5 at the clamping workpiece are connected; Exchange work part 1 when rotating when the working shaft of lathe drives the top like this, and camshaft 9 just can rotate, and processes with just available hobcutter at last and mills spline and get final product.

Claims

1. one kind is used for the special fixture that the machining cam axle mills spline; Comprising can be by the top of the lathe chuck upper clipping claw clamping part (1) of exchanging work; It is characterized in that: push up exchange work the thimble head (2) at part (1) top and an end face apical grafting of camshaft; The top part (1) of exchanging work is provided with and can and can fixes the top of living connecting key (3) the part draw-in groove (4) of exchanging work through bolt; The other end of connecting key (3) is arranged on the clamping workpiece and pulls out pulling out in the annular groove (6) of ring (5), and the clamping workpiece pulls out the fixing hole (7) that ring (5) is provided with the fastening camshaft of ability.

2. according to claim 1ly be used for the special fixture that the machining cam axle mills spline, it is characterized in that: the clamping workpiece pulls out that ring (5) is provided with can be through the locking screw keyhole (8) of bolt lock cam axle.