CN2915355Y

CN2915355Y - Improved structure for cutting knife

Info

Publication number: CN2915355Y
Application number: CN 200620116087
Authority: CN
Inventors: 阙世洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-26
Filing date: 2006-05-26
Publication date: 2007-06-27
Anticipated expiration: 2016-05-26

Abstract

The utility model relates to a cutting tool modified structure which is characterized in that a cutting tool connecting part of a cutter handle is embedded in a cutting tool sleeve; wherein the interior of the free end of the cutting tool connecting part is provided with a packing ring, the cutting tool sleeve is pressed through the packing ring in order to make the cutting tool combined with the cutter handle, one side towards the cutting tool sleeve of the packing ring is provided with a flange, the cutting tool sleeve can be pulled to separate from the cutter handle when replacing the cutting tool, the packing ring is locked in the interior of the cutter handle through a screw without a convex screw cap, which can avoid the center-of-gravity shift of the whole group of cutting tool; therefore, the convenience of replacing the cutting tool is improved, the vibration won't occur in the rotary & cutting process, the accuracy of the processing is better, and the rapid rotation and cutting of the cutting tool won't make the bothered wind-cutting noises.

Description

The cutting tool structure-improved

Technical field

The utility model is a kind of cutting tool structure, refers to that especially spiral shell is provided with a packing collar in a kind of cutter connecting portion that has a handle of a knife, produces the cutting tool structure-improved that vibrations and wind are cut noise when avoiding Tool in Cutting.

Technical background

The cutting tool that must installing on the general milling machine processing machine can rotate at a high speed with power source, as Fig. 6, shown in Figure 7, the general common cutting tool structure that is installed on the milling machine processing machine of system, as shown in Figure 6, this cutting tool is provided with a handle of a knife 50, this handle of a knife 50 towards board one end be provided be taper joint portion 51 inlay cards on board, handle of a knife 50 is incorporated into forms rotation on the power source, this handle of a knife 50 differs from joint portion 51 1 ends and is provided with cutter connecting portion 52, be provided with a bellmouth 53 in this cutter connecting portion 52, these cutter connecting portion 52 free end outer rims are provided with threaded portion 54, and be arranged with a cutter collar 20 in the bellmouth 53 of cutter connecting portion 52, these cutter collar 20 two ends are provided with tapered portion, and cutter collar 20 is provided with the profile groove 24 that is radial five equilibrium, and place cutting tool 40 in cutter collar 20 central authorities, form the location, spiral shell is provided with a nut 60 on these cutter connecting portion 52 free-ended threaded portions 54, by lock nut 60, make nut 60

ejection cutter collars

20,20 of this cutter collars are combined closely in the bellmouth 53 of handle of a knife 50, and tight simultaneously bundle cutting tool 40, make cutting tool 40 and handle of a knife 50 form one, be able to machined part; Yet still there is following shortcoming in the use in the cutter structure of more than commonly using:

One, cutter is easy to generate and rocks when machining

Because cutter connecting portion 52 outer rim screw locks one nut 60 of above-mentioned handle of a knife 50, and general nut 60 outer rims are provided with several can be for the Jia Te position of tool holdings such as spanner, owing to can make the whole position of centre of gravity skew of nut at nut 60 outer rims cutting clamping part, can't make position of centre of gravity be positioned on the axle center accurately, therefore solid tool can produce vibrations when the high speed rotary cutting, have a strong impact on the accuracy of part processing, and the nut of evagination can produce the wind of disturbing the people when rotated and cuts sound.

Two, the nut on the handle of a knife collides part easily during machining

Because spiral shell is provided with the nut 60 of protrusion on the cutter connecting portion 52 of handle of a knife 50, therefore in process, nut 60 outer rims are collided part easily, cause the puzzlement on the process operation.

Three, changing cutter is not easy

The cutting tool of more than commonly using must be dismantled Xia 60 (as shown in Figure 7) of Luo Mao when changing cutter, extract cutter collar 20 again, but the taper position of cutter collar 20 outer rims closely inlay card in the bellmouth 53 of handle of a knife 50, therefore must tool using the cutter collar be knocked cutter collar 20, could take out the cutting tool 40 in the cutter collar 20 smoothly, cause the puzzlement of changing in the cutter operation.

Therefore, the utility model people is because still there are many shortcomings in the use in present cutting tool, so be engaged in cutter Related product development Experience for many years with it, at the above variety of problems that is produced of commonly using, concentrate on studies, and, design eventually and a kind ofly can effectively improve the cutting tool structure-improved of commonly using shortcoming through repeatedly improvement and test.

Summary of the invention

The purpose of this utility model can effectively promote the cutting accuracy in that a kind of cutting tool structure-improved is provided, and it is more convenient to have a cutter changing of making, and touches part when avoiding machining, and disturbs the characteristics that people's wind is cut sound.

Technical solutions of the utility model: a kind of cutting tool structure-improved, it mainly is made of a handle of a knife, a cutter collar and a packing collar, wherein:

This handle of a knife one end has the joint portion of being fixed on the board, end then has the cutter connecting portion in addition, be installed with in this cutter connecting portion and extend axially the taper hole that embeds for the cutter collar, and cutter connecting portion free end screw lock has a packing cutter collar in order to the clamping cutting tool packing collar, it is characterized in that:

This cutter connecting portion free end has internal thread part, this packing collar outer rim has and is used for the external screw thread of screw lock in cutter connecting portion internal thread part, the packing collar differs from cutter collar one side and has conical bore, and having several on the end face of this this side of packing collar conical bore can be for the draw-in groove of Wrench inlay card rotation.

Wherein, this packing collar has towards projecting inward flange towards cutter collar one side.

Wherein, has an accommodation space between the conical bore of this packing collar and flange.

The utility model beneficial effect: by said structure, the utility model cutting tool structure-improved can effectively promote the cutting accuracy, and it is more convenient to have a cutter changing of making, and touches part when avoiding machining, and the wind of disturbing the people is cut the beneficial effect of sound.

Above-mentioned explanation only is the general introduction of the utility model Partial Feature; be the professional person who makes the auditor and read this specification; all can clearer understanding technological means of the present utility model; and can implement according to this according to this description; so cooperate diagram to be illustrated to the utility model; only the following stated person only is in order to explain preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; be with; allly doing relevant any modification of the present utility model or change in that identical creation spirit is following, all is the scope that should be included in the utility model protection.

Description of drawings

Fig. 1: be perspective exploded view of the present utility model.

Fig. 2: be generalized section of the present utility model.

Fig. 3: the enforcement schematic diagram of changing cutter for the utility model.

Fig. 4: the schematic diagram that the cutter collar is embedded the packing collar for the utility model.

Fig. 5: the schematic diagram that breaks away from the packing collar for the utility model cutter collar.

Fig. 6: for commonly using the schematic diagram of cutting tool structure section.

Fig. 7: for commonly using the schematic diagram of changing cutter.

The specific embodiment

See also Fig. 1, shown in Figure 2, the utility model is a kind of cutting tool structure-improved, and it mainly is made of a handle of a knife 10, a cutter collar 20 and a packing collar 30, wherein:

These handle of a knife 10 1 ends are provided with joint portion 11 and are fixed on the board, this handle of a knife 10, end then is provided with cutter connecting portion 12 (as shown in Figure 1 and Figure 2) in addition, is equipped with axially extended taper hole 13 in this cutter connecting portion 12, and these cutter connecting portion 12 free ends are provided with internal thread part 14;

This cutter collar 20 is towards cutter connecting portion 12 1 ends, but be provided with first tapered portion 21 of inlay card in cutter connecting portion 12 taper holes 13, this cutter collar 20 end in addition then is provided with second tapered portion 22 (as shown in Figure 1 and Figure 2), between this first and second

tapered portion

21,22 and be concaved with an annular recess 23, and these cutter collar 20 central authorities are equipped with a perforation 25 that supplies cutting tool 40 to place, and the top of this cutter collar 20, bottom surface are provided with and are radial five equilibrium, and interlaced profile groove 24, make cutter collar 20 have elasticity and support power;

This packing collar 30 roughly is torus (as shown in Figure 1), these packing collar 30 outer rims are provided with external screw thread 33, this external screw thread 33 and screw lock are in cutter connecting portion 12 free-ended internal thread parts 14, this packing collar 30 is towards cutter collar 20 1 sides, be provided with to the center and be the flange 31 that eccentric shape protrudes, this flange 31 embeds in the groove 23 of cutter collar 20, and the packing collar 30 differs from flange 31 1 sides and is provided with

conical bore

32,31 of the conical bore 32 of this packing collar 30 and flanges also form accommodation space, and the taper seat of conical bore 32 is affixed by on second tapered portion 22 of cutter collar 20, make cutter collar 20 tighten cutting tool 40, these packing collar 30 relative conical bores 32, on the end face of 13 these sides, being provided with number can be for the draw-in groove 34 of Wrench inlay card rotation.

By above each assembly combination, cutter collar 20 of the present utility model must combine with the packing collar 30 earlier before being inserted in handle of a knife 10, at first with cutter collar 20 towards the inclinations tiltedly (as shown in Figure 4) in addition of the packing collar 30 eccentric band flanges 31, rotation is pressed into the packing collar 30 and engages mutually again, forms the location in the cutter connecting portion 12 with cutter collar 20 and the packing collar 30 handle of a knife 10 of packing in the lump; When desiring to make cutter collar 20 to break away from the packing collars 30, if with cutter collar 20 reversed dips again the application of force draw back (as shown in Figure 5), the cutter collar 20 and the packing collar 30 are broken away from;

Because the packing collar 30 of the present utility model forms ring bodies in the turning mode, its position of centre of gravity is positioned on the axle center, so can not produce vibrations during handle of a knife 10 rotations, can guarantee the accuracy of processing; Moreover, the packing collar 30 of the present utility model is locked in the internal thread part 14 of cutter connecting portion 12, can't protrude handle of a knife 10 outsides, not cut noise, more not have ridge and touch the situation that part causes damage parts so when machining, can not produce the wind of disturbing the people;

The utility model is when changing cutter, as long as unclamp the packing collar 30, make the packing collar 30 move down (as shown in Figure 3), the flange 31 of this packing collar 30 can collude and be stuck in cutter collar 20 grooves 23 sides, simultaneously cutter collar 20 is spurred downwards, so can make cutter collar 20 break away from handle of a knife 10 easily, effectively promote the convenience of cutter changing.

In sum, cutting tool structure of the present utility model improvement can effectively improve and commonly use the shortcoming that cutting tool uses, and not see any publication, and real tool progressive and novelty meet the application key element of novel patent, then file an application in accordance with the law.

Claims

1. cutting tool structure-improved, it mainly is made of a handle of a knife, a cutter collar and a packing collar, wherein:

2, cutting tool structure-improved as claimed in claim 1 is characterized in that: this packing collar has towards projecting inward flange towards cutter collar one side.

3, cutting tool structure-improved as claimed in claim 2 is characterized in that: have an accommodation space between the conical bore of this packing collar and flange.