CN205237251U

CN205237251U - Machine presss from both sides formula thread fraise

Info

Publication number: CN205237251U
Application number: CN201521101851.1U
Authority: CN
Inventors: 陈宗平
Original assignee: TAIZHOU ZHONGTIAN TOOLS Co Ltd
Current assignee: TAIZHOU ZHONGTIAN TOOLS Co Ltd
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2016-05-18
Anticipated expiration: 2025-12-28

Abstract

The utility model provides a machine presss from both sides formula thread fraise belongs to mechanical technical field. It has solved current machine presss from both sides formula thread fraise's the unstable problem of blade. This machine presss from both sides formula thread fraise includes the handle of a knife, the cutter arbor with set up a plurality of blade on the cutter arbor, inseparable suit has the long sleeve of a plurality of with blade interval distribution on the cutter arbor, it has also set up long sleeve to be close to between blade and the handle of a knife of handle of a knife one end, the blade on for ring form and circumference outer wall even distribution have a plurality of cutting teeth, the cover is equipped with the blade that supplies from the handle of a knife farthest and supports the short sleeve that leans on on the cutter arbor tip, the long sleeve of a plurality of, short sleeve and blade are all and spline fit between the cutter arbor, cutter arbor tip threaded connection has the housing screw, short telescopic tip has confession housing screw screw in and supports the step groove of leaning on. The utility model has the advantages of compact structure is more stable in the course of working between blade and the cutter arbor.

Description

A kind of clip type screw cutter

Technical field

The utility model belongs to field of mechanical technique, relates to a kind of milling cutter, particularly a kind of clip type screw cutter.

Background technology

Traditional Screw thread process method is mainly and adopts threading tool cutted thread or adopt screw tap, the manual tapping of screw die and hitch. Along with the development of Computerized Numerical Control processing technology, the especially appearance of three-shaft linkage digital-control processing system, is achieved the numerical control milling of screw thread. Thread milling processing, compared with conventional threads processing mode, has very big advantage, and is adding the restriction that be not subject to helicitic texture and thread rotary orientation man-hour aspect machining accuracy, working (machining) efficiency, as a screw cutter can be processed the internal and external screw thread of multiple different rotation directions. For the screw thread that does not allow transition button or relief groove structure, adopt traditional method for turning or screw tap, screw die to be difficult to processing, but adopt numerical control milling very easily to realize. In addition, the durability of screw cutter is more than ten times of screw tap even decades of times, and in numerical control milling threaded process, the adjustment of double thread diameter dimension is very convenient, and this adopts screw tap, screw die to be difficult to accomplish. Due to the many advantages of thread milling processing, the screw thread in enormous quantities of developed country is produced and has been adopted more widely milling process at present.

Screw cutter is divided into: integral threaded milling cutter, clip type screw cutter, welded type screw cutter. Wherein clip type screw cutter is divided into monodentate screw cutter and multiple tooth screw cutter, and the chip removal in workpiece process of monodentate screw cutter is effective, but long processing time, need process some Zhou Caike along helix and complete screw thread processing, and working (machining) efficiency is extremely low; Multiple tooth screw cutter can process at one time screw thread in workpiece process, and working (machining) efficiency is high. Sleeve and blade that several spaces arrange on the knife bar of existing multiple tooth screw thread, are closely set with, by block by sleeve and blade shaft to being pressed on handle of a knife, but after using for a long time, only depend on the compression of block cannot avoid sleeve and blade to occur radial deflection, thereby screw thread processing is affected.

Summary of the invention

The purpose of this utility model is for the above-mentioned problems in the prior art, and a kind of compact conformation is provided, the clip type screw cutter not radially being offset between blade and knife bar.

The purpose of this utility model can realize by following technical proposal: a kind of clip type screw cutter, comprise handle of a knife, knife bar and be arranged at several blades on knife bar, on described knife bar, be closely set with several by long sleeve spaced apart blade, between the blade of described close handle of a knife one end and handle of a knife, be also provided with long sleeve, it is characterized in that, described blade is in circular and outer circumferential walls, to be uniformly distributed with several cutting teeths, on described knife bar end, be set with for from the blade of handle of a knife farthest against short sleeve, several described long sleeves, short sleeve and blade spline fitted all and between knife bar, described knife bar end thread is connected with housing screw, the end of described short sleeve have for housing screw screw in against step groove.

Several sleeves of this clip type screw cutter and blade are all spline fitted with knife bar, make it more stable in machining screw process, radially all can not occur not to be offset; It is axially pressed in blade, long sleeve and end sleeve on handle of a knife by housing screw, and offer the step groove being pressed into for housing screw in short sleeve end, can not only make axially to fit tightly between blade, long sleeve, end sleeve and handle of a knife, and structure is also compacter.

In above-mentioned a kind of clip type screw cutter, described handle of a knife and knife bar are tool steel or high-carbon steel material, and described blade is Hardmetal materials.

In above-mentioned a kind of clip type screw cutter, described handle of a knife and the knife bar structure that is formed in one.

Compared with prior art, the sleeve blade of this clip type screw cutter and knife bar are spline fitted, axially by housing screw, blade and sleeve are pressed on handle of a knife, make it more stable in machining screw process, axially and radially all can not occur not to be offset.

Brief description of the drawings

Fig. 1 is the perspective view of this clip type screw cutter.

Fig. 2 is the blast structural representation of this clip type screw cutter.

In figure, 1, handle of a knife; 2, knife bar; 3, blade; 3a, cutting teeth; 4, long sleeve; 5, short sleeve; 6, housing screw; 7, step groove.

Detailed description of the invention

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As Fig. 1, shown in Fig. 2, this clip type screw cutter comprises handle of a knife 1, knife bar 2 and be arranged at several blades 3 on knife bar 2, on knife bar 2, be closely set with several by long sleeve spaced apart blade 34, between the blade 3 of close handle of a knife 1 one end and handle of a knife 1, be also provided with long sleeve 4, blade 3 is for being uniformly distributed with several cutting teeths 3a in circular and outer circumferential walls, on knife bar 2 ends, be set with for from the blade 3 of handle of a knife 1 farthest against short sleeve 5, several long sleeves 4, end sleeve 5 and blade 3 spline fitted all and between knife bar 2, knife bar 2 end thread are connected with housing screw 6, the end of short sleeve 5 have for housing screw 6 screw in against step groove 7.

For the longer service life of this clip type screw cutter, its handle of a knife 1 and knife bar 2 structure that is formed in one, handle of a knife 1 and knife bar 2 are tool steel or high-carbon steel material, blade 3 is Hardmetal materials.

Specific embodiment described herein is only to the explanation for example of the utility model spirit. The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although more used herein handle of a knife 1, knife bar 2, blade 3, cutting teeth 3a, long sleeve 4, short sleeve 5, housing screw 6, step groove 7. Deng term, but do not get rid of the possibility that uses other term. Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.

Claims

1. a clip type screw cutter, comprise handle of a knife (1), knife bar (2) and be arranged at several blades (3) on knife bar (2), on described knife bar (2), be closely set with several by long sleeve (4) spaced apart blade (3), between the blade (3) of close handle of a knife (1) one end and handle of a knife (1), be also provided with long sleeve (4), it is characterized in that, described blade (3) is for being uniformly distributed with several cutting teeths (3a) in circular and outer circumferential walls, on described knife bar (2) end, be set with for from the blade (3) of handle of a knife (1) farthest against short sleeve (5), described several long sleeves (4), short sleeve (5) and blade (3) spline fitted all and between knife bar (2), described knife bar (2) end thread is connected with housing screw (6), the end of described short sleeve (5) have for housing screw (6) screw in against step groove (7).

2. a kind of clip type screw cutter according to claim 1, is characterized in that, described handle of a knife (1) and knife bar (2) are tool steel or high-carbon steel material, and described blade (3) is Hardmetal materials.

3. a kind of clip type screw cutter according to claim 2, is characterized in that, described handle of a knife (1) and knife bar (2) structure that is formed in one.