CN209077938U - Right knife bar - Google Patents

Abstract

The utility model provides a kind of right knife bar, belongs to reamer field, including steel knife handle and alloy bar, and wherein steel knife handle one end is provided with the connecting hole for connecting with mechanical main shaft, and the other end is provided with the connecting rod for connecting with other attachmentes；Alloy bar along steel knife handle length direction be arranged on steel knife handle, and alloy bar be it is a plurality of, along steel knife handle even circumferential be distributed.Right knife bar provided by the utility model, is made of steel structure, strengthens the rigidity of knife bar, while alloy bar is arranged, and further strengthens rigidity, to meet in practical applications to the requirement of rigidity, ensure that the straightness of knife bar, to not influence machining accuracy.

Description

Right knife bar

Technical field

The utility model belongs to reamer technical field, is to be related to a kind of right knife bar more specifically.

Background technique

Knife bar in machinery field with extremely wide, such as machining center, lathe, drilling machine, tooth machining unit, milling machine etc. these add On work lathe, knife bar can be all used.Knife bar is defined as: mechanical main shaft and cutter, workpiece or other taper shank class accessory tools One contract bar of connection.

However, in practical applications the rigidity of knife bar is tended not to meet the requirements, after a period of time is used continuously, knife bar It can occur bending and deformation, influence machining accuracy.

Utility model content

The purpose of this utility model is to provide a kind of right knife bars, to solve knife bar rigidity existing in the prior art not It is enough, it is easy to happen bending, thus the technical issues of influencing machining accuracy.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of right knife bar, including steel knife Handle, steel knife handle one end are provided with the connecting hole for connecting with mechanical main shaft, and the other end is provided with for attached with other The connecting rod of part connection；And alloy bar, the alloy bar are arranged along the length direction of the steel knife handle in the steel knife handle On, and the alloy bar be it is a plurality of, along the steel knife handle even circumferential be distributed.

Further, the alloy bar surface protrudes from the outer surface of the steel knife handle.

Further, it is provided with through-hole on the steel knife handle, the through-hole extends vertically through the connecting hole.

Further, the groove is 8, is evenly distributed on the steel knife handle, and the alloy bar is 8.

Further, the cross section of the steel knife handle is circle.

Further, the groove is square groove, triangular groove or circular groove.

Further, the modulation hardness of the right knife bar is HRC28-30.

The beneficial effect of right knife bar provided by the utility model is:

Compared with prior art, right knife bar provided by the utility model, including for connecting mechanical main shaft and other attachmentes Steel knife handle, along steel knife handle length direction be arranged alloy bar, and alloy bar be it is a plurality of, along the even circumferential of steel knife handle Distribution.The utility model is made of steel structure, strengthens the rigidity of knife bar, while alloy bar is arranged, and is further strengthened just Property, to meet in practical applications to the requirement of rigidity, it ensure that the straightness of knife bar, to not influence machining accuracy.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of right knife bar provided by the embodiment of the utility model；

Fig. 2 is the A-A cross-sectional view of Fig. 1；

Fig. 3 is the B-B cross-sectional view of Fig. 1.

Wherein, each appended drawing reference in figure:

1- steel knife handle；11- connecting hole；12- connecting rod；2- alloy bar；3- through-hole.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

Also referring to Fig. 1-Fig. 3, now right knife bar provided by the utility model is illustrated.Right knife bar, including steel Knife handle 1 and alloy bar 2, wherein 1 one end of steel knife handle is provided with the connecting hole 11 for connecting with mechanical main shaft, other end setting There is the connecting rod 12 for connecting with other attachmentes；Alloy bar 2 is arranged on steel knife handle 1 along the length direction of steel knife handle 1, And alloy bar 2 be it is a plurality of, along steel knife handle 1 even circumferential be distributed.

Right knife bar provided by the utility model, including the steel knife handle 1 for connecting mechanical main shaft He other attachmentes, along steel The length direction of knife handle 1 processed is arranged alloy bar 2, and alloy bar 2 be it is a plurality of, the even circumferential along steel knife handle 1 is distributed.This is practical It is novel to be made of steel structure, strengthen the rigidity of knife bar, while alloy bar 2 is set, further strengthens rigidity, to meet In practical applications to the requirement of rigidity, the straightness of knife bar ensure that, to not influence machining accuracy.

Further, a kind of specific implementation also referring to Fig. 1 and Fig. 2, as right knife bar provided by the utility model Mode, 2 surface of alloy bar protrude from the outer surface of steel knife handle 1, while increasing rigidity, increase surface roughness, convenient for Mechanical main shaft is connected with other attachmentes.

Further, a kind of specific implementation also referring to Fig. 1 and Fig. 2, as right knife bar provided by the utility model Mode is provided with through-hole 3 on steel knife handle 1, and through-hole 3 extends vertically through connecting hole 11, after mechanical main shaft penetrates connecting hole 11, at this Pin shaft is penetrated in through-hole 3, so that mechanical main shaft and steel knife handle 1 are fixed together.

Further, referring to Fig. 2, a kind of specific embodiment as right knife bar provided by the utility model, groove It is 8, is evenly distributed on steel knife handle 1, alloy bar 2 is 8, and 8 alloy bars are uniformly arranged on steel knife by 8 grooves On handle.It is good straight to ensure that the steel knife handle for being is able to maintain in use for the rigidity for uniformly increasing steel knife handle Dimension.

Further, referring to Fig. 2, a kind of specific embodiment as right knife bar provided by the utility model, steel The cross section of knife handle 1 is circle, and all directions uniform force is also not limited to a kind of this structure certainly, as long as can the company of playing Effect is connect, can also be other centrosymmetric structures.

Further, a kind of specific embodiment as right knife bar provided by the utility model, groove be square groove, Triangular groove or circular groove can play good connection function, so that alloy bar stabilization is inlaid into steel knife handle.

Further, a kind of specific embodiment as right knife bar provided by the utility model, the modulation of right knife bar are hard Degree is HRC28-30, which can satisfy the hardness requirement of knife bar, and acquisition is good to use rigidity.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (7)

1. right knife bar characterized by comprising

Steel knife handle, steel knife handle one end are provided with the connecting hole for connecting with mechanical main shaft, and other end setting is useful In the connecting rod being connect with other attachmentes；

And alloy bar, the alloy bar is arranged on the steel knife handle along the length direction of the steel knife handle, and the conjunction Gold bar be it is a plurality of, along the steel knife handle even circumferential be distributed.

2. right knife bar as described in claim 1, it is characterised in that: the alloy bar surface protrudes from the outer of the steel knife handle Surface.

3. right knife bar as claimed in claim 2, it is characterised in that: be provided with through-hole on the steel knife handle, the through-hole hangs down Directly run through the connecting hole.

4. right knife bar as described in claim 1, it is characterised in that: the alloy bar is arranged by groove in the steel knife handle On, the groove is 8, is evenly distributed on the steel knife handle, and the alloy bar is 8.

5. right knife bar as described in claim 1, it is characterised in that: the cross section of the steel knife handle is circle.

6. right knife bar as claimed in claim 4, it is characterised in that: the groove is square groove, triangular groove or circular arc Connected in star.

7. right knife bar as described in claim 1, it is characterised in that: the modulation hardness of the right knife bar is HRC28-30.