CN205289971U

CN205289971U - Thread processing gang tool

Info

Publication number: CN205289971U
Application number: CN201520990858.7U
Authority: CN
Inventors: 江兵发; 黎碧; 徐家品
Original assignee: 722th Research Institute of CSIC
Current assignee: 722th Research Institute of CSIC
Priority date: 2015-12-03
Filing date: 2015-12-03
Publication date: 2016-06-08
Anticipated expiration: 2025-12-03

Abstract

The utility model discloses a thread processing gang tool, include the centre gripping cutter arbor and set up the mounting hole on the centre gripping cutter arbor perpendicularly, the mounting hole in be equipped with the screw thread sword, the cutting edge of screw sword comprises than the back tip of preceding tip little 4 - 6 long 2mm's preceding tip and contained angle, the utility model discloses a cutting edge of screw thread sword has compound contained angle, makes simplyr, and in cutting process, the cutter atress is less, and the cutting is steady for during processing coarse pitch screw thread, can effectively prevent to take place cutter tipping or digging cutter phenomenon when the processing screw thread, reach the purpose that improves accuracy of thread and threaded surface roughness.

Description

A kind of screw thread process gang tool

Technical field

This utility model relates to a kind of screw thread process gang tool.

Background technology

In the steep-pitch threads such as regular screw threads, pipe screw thread, taper pipe thread, maximum with the difficulty of processing of inner cone steep-pitch thread.

At present, in machining, the working (machining) efficiency of steep-pitch thread is low, Cutting Tool Damage serious, particularly when processing inner cone steep-pitch thread, it is easy to cutter tipping occurs or digs cutter phenomenon, thus having a strong impact on accuracy of thread and surface roughness.

When batch or small lot batch manufacture, can cause that the problem that production cost increases and working (machining) efficiency is low occurs.

Utility model content

The purpose of this utility model is in that to provide a kind of screw thread process gang tool, to prevent from cutter tipping occurring when processing inner cone steep-pitch thread or digging cutter phenomenon, thus ensureing the technical specification such as precision and surface roughness of screw thread.

This utility model solves its technical problem and be the technical scheme is that a kind of screw thread process gang tool, including clamping knife bar and being vertically set on the installing hole on clamping knife bar, being provided with screwer in described installing hole, by the leading section of long 2mm and angle, than leading section, the rearward end of little 46 �� forms the cutting edge of described screwer.

Described a kind of screw thread process gang tool, is additionally provided with the adjustment screw adjusting cutting edge extension elongation in its installing hole.

Described a kind of screw thread process gang tool, its clamping knife bar end is provided with the fixing bolt of collet threaded cutter.

Described a kind of screw thread process gang tool, its described leading section angle is 60 ��, and described rearward end angle is 54 ��.

The beneficial effects of the utility model are: the cutting edge of screwer has compound angle, the angle of 2mm part backward is less 46 �� than the processing angle of thread, and manufacture simpler, in working angles, cutter stress is less, and stable cutting, when being used for processing steep-pitch thread, can effectively prevent from cutter tipping occurring when processing screw thread or digging cutter phenomenon, reach to improve the purpose of accuracy of thread and thread surface roughness.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model;

Fig. 2 is left view of the present utility model;

Fig. 3 is the sectional view of the main apparent direction of this utility model;

Fig. 4 is the sectional view in this utility model side-looking direction;

Fig. 5 is the front view of this utility model screwer;

Fig. 6 is the top view of this utility model screwer;

Fig. 7 is use view of the present utility model.

In figure, each token name is called: 1 clamping knife bar, 2 screwers, and 3 regulate screw, 4 fixing bolts.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

With reference to shown in Fig. 1, Fig. 2 and Fig. 3, the utility model discloses a kind of screw thread process gang tool, including clamping knife bar 1 and the installing hole being vertically set on clamping knife bar 1 end, screwer 2 it is provided with in described installing hole, the adjustment screw 3 adjusting cutting edge extension elongation also it is connected with in described installing hole, described clamping knife bar 1 end is provided with the fixing bolt 4 of collet threaded cutter 2, the cutting edge of described screwer 2 participates in screw thread process depth part, i.e. the angle of the leading section of long 2mm than rearward end big 46 ��.

Referring to accompanying drawing 5 and Fig. 6, as a kind of specific embodiment, cutting edge leading section angle is 60 ��, rearward end angle is 54 ��, it is analyzed with the cutting form of 60 �� of inner cone steep-pitch thread cuttves and illustrates, screwer is by forming common screwer blade polishing, regular screw threads cutter front end 2mm length keeps 60 �� of angles, 2mm part backward sharpens into the angle of 54 ��, to reduce cutter and the friction processing threaded side wall, thus the heat in metal cutting reduced in working angles, the contact area between cutter and threaded side wall can also be reduced simultaneously, reach to improve the purpose of thread surface roughness.

The M10 bolt of knife bar right-hand member end face and screw adaptation corresponding length radially and M6 cross recessed countersunk head sscrew, after screwer 2 loads clamping knife bar 1 right-hand member square concave station, regulate screw 3 by the M6 of right-hand member radial direction and regulate the extension elongation of screwer 2, then pass through the fixing bolt 4 collet threaded cutter 2 of M10 of right side, so, gang tool assembles and puts in place.

Firstly, it is necessary to screwer is changed a social system, namely reduce the angle at screwer position except cutting position, such change, it is possible to farthest reduce screwer blade position and the friction processed between threaded side wall.

Secondly, the characteristic of combining with digital control lathe cutter saddle, the taper knife bar that preparation lengthens, as shown in Figure 4. Wherein, �� d blind hole is the lightening hole of knife bar, and its aperture size changes with the change of knife bar external diameter �� D, meanwhile, the processing in �� d hole, also effectively increase the integral rigidity of knife bar. Knife bar right-hand member square concave station is screwer installing hole. The screw of knife bar right side is knife bar housing screw installing hole. Knife bar right-hand member screw radially is the installing hole regulating screwer collapsing length screw. Knife bar left end is then dimensioned to rectangular profile and eccentric breach according to the actual installation of numerically-controlled machine tool rest.

After gang tool is equipped with numerically-controlled machine tool rest, namely can be used for the machining of 60 �� of inner cone steep-pitch threads. In numerical control workshop, for the feature of 60 �� of inner cone steep-pitch threads, adopt and tiltedly enter formula cutting process so that screwer is always single-side edge cutting in the course of processing, effectively reduces cutter load, and is prone to chip removal; Meanwhile, the cutting depth adopting the method is degression type. This just can thoroughly solve screwer and cutter tipping occurs in the course of processing or digs cutter phenomenon, it is possible to effectively improves product quality, improve production efficiency, reduce production cost.

This gang tool is mainly for the big pitch of lathe in machining (P=4 20mm) screw thread aspect, such as steep-pitch threads such as regular screw threads, pipe screw thread, taper pipe threads, it is ensured that thread surface roughness, central diameter size and other index.

As it is shown in fig. 7, in numerical control workshop, adopt and tiltedly enter formula cutting process so that screwer is always single-side edge cutting in the course of processing, and maintenance cutting depth is degression type.

Advantage of the present utility model:

1. adopt this utility model to process steep-pitch thread, can effectively prevent from cutter tipping occurring when processing screw thread or digging cutter phenomenon, reach to improve the purpose of accuracy of thread and thread surface roughness.

2. this utility model is adopted, less costly, sharpening is simple, use.

3. this utility model is adopted when producing in enormous quantities, it is possible to being fabricated to the quick change blade of clip type pattern, such cutter cost of manufacture is lower, working (machining) efficiency is higher.

Above-described embodiment only illustrative principle of the present utility model and effect thereof; and the embodiment that part is used; for the person of ordinary skill of the art; under the premise creating design without departing from this utility model; can also making some deformation and improvement, these broadly fall into protection domain of the present utility model.

Claims

1. a screw thread process gang tool, it is characterized in that: include clamping knife bar (1) and be vertically set on the installing hole in clamping knife bar (1), being provided with screwer (2) in described installing hole, by the leading section of long 2mm and angle, than leading section, the rearward end of little 46 �� forms the cutting edge of described screwer (2).

2. a kind of screw thread process gang tool according to claim 1, it is characterised in that be additionally provided with the adjustment screw (3) adjusting cutting edge extension elongation in described installing hole.

3. a kind of screw thread process gang tool according to claim 2, it is characterised in that described clamping knife bar (1) end is provided with the fixing bolt (4) of collet threaded cutter (2).

4. a kind of screw thread process gang tool according to claim 1 or 2 or 3, it is characterised in that described leading section angle is 60 ��, and described rearward end angle is 54 ��.