CN201442136U

CN201442136U - Simple and easy squeezing device for increasing glossiness of screwing

Info

Publication number: CN201442136U
Application number: CN2009200128368U
Authority: CN
Inventors: 张立湖
Original assignee: SHENYANG LIHANGFA PETROCHEMICAL MACHINERY?EQUIPMENT MANUFACTURING CO ?LTD
Current assignee: SHENYANG LIHANGFA PETROCHEMICAL MACHINERY?EQUIPMENT MANUFACTURING CO ?LTD
Priority date: 2009-04-10
Filing date: 2009-04-10
Publication date: 2010-04-28
Anticipated expiration: 2019-04-10

Abstract

A simple and easy squeezing device for increasing glossiness of screwing relates to the improvement of the simple and easy squeezing device for increasing the glossiness of turning part screw. The utility model provides the simple and easy squeezing device which has simple structure and is suitable for increasing the glossiness of the screwing and comprises a wheel seat; the device has the structural key points that the wheel seat is provided with a notch; a wheel axle of the notch is provided with a squeezing wheel; the wheel axle is fixed on the wheel seat by a bolt; and the closed angle at the point part of the squeezing wheel is 59.4 degrees to 59.5 degrees.

Description

A kind of simple and easy pressurizing unit that improves cutted thread fineness

Technical field:

The utility model relates to improve the improvement of the simple and easy pressurizing unit structure of turner screw thread fineness.

Background technology:

In mechanical processing process, often run into the situation of turner screw thread on engine lathe.Generally speaking, the screw thread after the processing is poorer than the screw thread fineness of rolling processing.But be subjected to workpiece size, structural limitations can not take rolling process to process.Therefore, can't satisfy the best bright finish requirement of workpiece screw thread.

The utility model content:

The utility model is exactly at the problems referred to above, and a kind of simple and easy pressurizing unit of simple in structure, the raising cutted thread fineness that is suitable for is provided.

For realizing above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, and the utility model comprises wheel seat, and its structural feature wheel seat is provided with notch, and the wheel shaft on the notch is provided with squeegee roller, and wheel shaft is to be fixed on the wheel seat with screw; The wedge angle of squeegee roller tip be 59 ° 40 '～59 ° 50 '.

The beneficial effects of the utility model:

1, pushes in the thread surface of turning, can improve the surface smoothness of cutted thread greatly, improve 1～2 luminosity rank at least;

2, since the surface ratio lathe tool cutting surface after the screw thread extruding more approach screw thread theoretical tooth form, particularly tooth at the bottom of the switching fillet slick and sly more, therefore when improving thread surface fineness, also improved the precision of screw thread;

3, there is compression in the surface after the screw thread extruding, tearing the surface and more can improve screw strength and mechanical performance than cutted thread; Well guaranteed the quality requirement of workpiece.

Description of drawings:

Fig. 1 is work (the comprising the pressurizing unit structure) schematic diagram of pressurizing unit of the present utility model;

Fig. 2 is the enlarged diagram of squeegee roller of the present utility model;

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

The specific embodiment:

The utility model comprises wheel seat 1, and wheel seat 1 is provided with notch 2, and the wheel shaft 5 on the notch 2 is provided with squeegee roller 3, and wheel shaft 5 is to be fixed on the wheel seat 1 with screw 4; The wedge angle of squeegee roller 3 tips be 59 ° 40 '～59 ° 50 '.

Below in conjunction with description of drawings use of the present utility model:

At first, by operation requirement cutted thread 6, middle footpath size remains on the upper limit of tolerance numerical value through three pin measurements, then, carries out the extrusion process of screw thread 6 with pressurizing unit of the present utility model on workpiece 7.

At first, with each the free gap apply oil of the utility model that has assembled.Then, replace lathe tool to be clamped on the lathe saddle with pressurizing unit of the present utility model, it is fixing that squeegee roller 3 is on the workpiece 7 central horizontal lines.

In workpiece 7 rotary courses, the pitch when needing to keep cutted thread 6 makes squeegee roller 3 advance in screw thread 6 grooves all the time with workpiece 7 rotations.

After squeegee roller 3 was advanced normally, the normal pressure of attempting constantly increasing by the lathe handle squeegee roller 3 and workpiece 7 by the repeated multiple times feed, was measured footpath in the screw thread 6 at any time; So just can reach squeezing effect.

It should be noted that: in extrusion process, constantly cool off with kerosene, the fine particle that extruding is produced constantly washes away, and prevents to be extruded to once more screw thread 6 surfaces.

Need alleviate normal pressure at the discount of thread-rolling screw 6 with when arriving the spiral shell tail, prevent the imperfect tooth form distortion that discount and spiral shell tail have existed.

Claims

1. simple and easy pressurizing unit that improves cutted thread fineness, comprise wheel seat (1), it is characterized in that wheel seat (1) is provided with notch (2), the wheel shaft (5) on the notch (2) is provided with squeegee roller (3), and wheel shaft (5) is to be fixed on the wheel seat (1) with screw (4); The wedge angle of squeegee roller (3) tip be 59 ° 40 '～59 ° 50 '.