CN206567588U - Comb core milling cutter - Google Patents

Abstract

The utility model discloses a kind of comb core milling cutter, including knife bar, circular saw bit, pad, fastening bolt, the leading portion of knife bar is horn-like blade linkage section, the back segment of knife bar is shaft-like gripping section, circular saw bit is fitted with the end face of blade linkage section, pad is fitted with circular saw bit, and fastening bolt is arranged in pad, circular saw bit and blade linkage section and fixed successively.The utility model has the advantages that：1st, the shape and structure of knife bar is changed to subversiveness, so that milling cutter can dramatically increase diameter, chamfer machining size is significantly increased, the cleavable and larger honeycomb core of chamfering thickness increases cutting area；2nd, the assembling contact area of knife bar and milling cutter is significantly increased, the stability and dynamic balance performance of whole cutter are substantially improved, and improve the security and durability of cutter；3rd, circular saw bit deforms when in use, so as to ensure that blade center position is not contacted with honeycomb core, is simply cut with blade edge, and cutting force increase, frictional force reduces, and increases processing efficiency, and blade is protected by many places structure design；4th, cutter assembly and connection is efficient and convenient.

Description

Comb core milling cutter

Technical field

The utility model is related to a kind of milling cutter, particularly a kind of cutter of milling honeycomb core raw material.

Background technology

Multiple material honeycomb sandwich construction has been widely used in the multiple fields such as Aeronautics and Astronautics, is needed honeycomb core during production Raw material are processed into satisfactory shape.Conventional rib tooth milling cutter tool and slitting milling cutter, milling cutter and knife bar is currently mainly used Assembling, come milling honeycomb core and chamfering by way of high speed rotates.

But there are some such shortcomings in existing milling cutter cutting：1st, conventional milling cutters diameter all very littles, therefore milling processing Comb core is size-constrained；2nd, because knife bar profile is column, milling cutter diameter all very littles, and milling cutter and column knife bar are in length It is upper coaxial mounted, limited to by package assembly, when high speed rotates, overall its dynamic balancing of slim-lined construction is poor；3rd, it is high to turn Under fast state, safety coefficient is low, and cutter wear is serious.

Utility model content

Utility model purpose：In view of the above-mentioned problems, the purpose of this utility model be to provide one kind can expand processing dimension, Use the cutter of the milling honeycomb core raw material of safety and stability.

Technical scheme：A kind of comb core milling cutter, including knife bar, circular saw bit, pad, fastening bolt, the knife The leading portion of bar is horn-like blade linkage section, and the back segment of the knife bar is shaft-like gripping section, the circular saw bit with it is described The end face laminating of blade linkage section, the pad is fitted with the circular saw bit, and the fastening bolt is arranged in the pad successively Piece, circular saw bit are fixed with the blade linkage section.

Circular saw bit is connected with horn-like its end face of blade linkage section, is added significantly to both contacts area, even if Circular saw bit is deformed upon when using generates deviation with end face, has still ensured that with end face there is certain contact area, protects Demonstrate,prove the stability and preferable dynamic balance performance of whole cutter.

Transition shoulder is offered on the end face of the blade linkage section, the circumferential edge of the pad is concave surface, described recessed The inner ring hole of circular saw bit described in the support of face, the diameter of the inner ring hole is less than the diameter of the transition shoulder.Transition shoulder is The deformation occurred when circular saw bit is used provides receiving space, and is with certain restricted space, concave surface and inner ring Deformation of the junction in hole to circular saw bit provides the strong point, to prevent its deformation excessive.

Further, it is further opened with having and the deep gouge form fit on deep gouge, the pad on the transition shoulder Boss, the boss is embedded in the deep gouge through the inner ring hole, increases fixed contact surface in fastening bolt fixed point Product, improves the stability of whole cutter.

Further, one section opposing straight of the concave surface on the inside of the circular saw bit, on the outside of the circular saw bit One section it is relatively upper lift, contact area is increased to the deformable supports point of circular saw bit, prevents circular saw bit from bursting apart.

With circular arc chamfering transition between the blade linkage section, gripping section.

The end face of the blade linkage section is disc face, for increasing contact area with circular saw bit.

With chamfered transition between the transition shoulder and the deep gouge, prevent sharp comer from being produced to the circular saw bit surface of deformation Raw damage.

Beneficial effect：Compared with prior art, the utility model has the advantages that：1st, the shape of knife bar is changed to subversiveness Structure, so that milling cutter can dramatically increase diameter, chamfer machining size is significantly increased, cleavable and chamfering thickness is larger Honeycomb core, increases cutting area；2nd, the assembling contact area of knife bar and milling cutter is significantly increased, the stability of whole cutter and dynamic Balance quality is substantially improved, and improves the security and durability of cutter；3rd, circular saw bit deforms when in use, from And ensure that blade center position is not contacted with honeycomb core, simply cut, cutting force increase, frictional force reduces, increased with blade edge Big processing efficiency, and being protected by many places structure design to blade, with ensure its safely, be normally used；4th, cutter group Load connects efficient and convenient.

Brief description of the drawings

Fig. 1 is the utility model structural decomposition diagram；

Fig. 2 is the utility model assembly structure figure；

Fig. 3 is the utility model structural representation that circular saw bit deforms when in use.

Embodiment

Below in conjunction with the accompanying drawings and specific embodiment, the utility model is further elucidated, it should be understood that these embodiments are only used for Illustrate the utility model rather than limit scope of the present utility model, after the utility model has been read, art technology Modification of the personnel to the various equivalent form of values of the present utility model falls within the application appended claims limited range.

A kind of comb core milling cutter, as shown in Figure 1, including knife bar 1, circular saw bit 2, pad 3, fastening bolt 4.

Knife bar 1 includes two sections, and leading portion is horn-like blade linkage section 11, and back segment is shaft-like gripping section 12, both it Between with the transition of circular arc chamfering 16, this two sections are usually the overall structure being made into integration.The end face 13 of blade linkage section 11 is disk Face, is slightly less than the contact area of circular saw bit 2, on the one hand increase end face and circular saw bit, does not on the other hand interfere circular saw bit Circumferential edge work as cutting.

Offered on end face 13 and deep gouge 15 is offered on transition shoulder 14, transition shoulder 14, transition shoulder 14 and deep gouge 15 Between with the transition of chamfering 17, the inner side of circular saw bit 2 is fitted with end face 13, and inner ring hole 21, inner ring hole 21 are offered on circular saw bit 2 Diameter be less than transition shoulder 14 diameter.

There is the boss 32 with the form fit of deep gouge 15, the circumferential edge of pad 3 is concave surface 31, boss on the side of pad 3 32 pass through the inner ring hole 21 of circular saw bit 2, are then embedded into deep gouge 15, the inner ring hole 21 of the support circular saw bit 2 of concave surface 31, then The opposite side of pad 3 is located at the outside of circular saw bit 2.Concave surface 31 one section of the inner side of circular saw bit 2 can with opposing straight some, in circle One section of the outside of disk saw blade 2 is relatively upper to be lifted.

Fastening bolt 4 is arranged in after pad 3, circular saw bit 2 successively, the deep gouge 15 of blade linkage section 11, four is fallen into Part is installed and is fixed into cutter, as shown in Figure 2.

The utility model cutter when in use, as shown in Figure 3, is cut, so as to protect using the edge of circular saw bit Card blade center position is not contacted with honeycomb core, but circular saw bit can deform, relative to the end face meeting of blade linkage section Produce deviation.This deformation can not be excessive, otherwise blade can be caused to crumble, it is therefore desirable to which its deformation is limited and protected, Even if circular saw bit is deformed upon when using generates deviation with end face, remain able to ensure that there is certain contact surface with end face Product, it is ensured that the stability and preferable dynamic balance performance of whole cutter：1st, there is provided tool for the deformation of circular saw bit for transition shoulder The receiving space of having certain limitations property；2nd, the deformation of concave surface and the junction of inner ring hole to circular saw bit provides the strong point；3、 Chamfering between transition shoulder and deep gouge, can prevent sharp comer from producing damage to the circular saw bit surface of bending；4th, it is recessed One section opposing straight of the face on the inside of circular saw bit, one section on the outside of the circular saw bit relatively on lift, make pad and circular saw bit The strong point add contact area in circular saw bit deformation bending direction, good supporting role can be played, and can Prevent from producing damage to circular saw bit surface；5th, in the junction of fastening bolt, fixed contact surface is increased by deep gouge structure Product, increases stability.

The utility model cutter mainly has the characteristics that：

1st, in order to increase blade size, various sizes of honeycomb core is cut, horn-like knife bar is devised, is added significantly to The assembling contact area of blade and knife bar, it is achieved thereby that dramatically increasing the purpose of blade diameter, has overturned original thin completely Long structure, chamfer machining size is significantly increased, and cutting area increase, the cleavable and larger honeycomb core of chamfering thickness, chamfering is oblique Face size improves processing efficiency up to 100mm, cuts honeycomb wicking surface impulse- free robustness, guarantees both quality and quantity, crudy stability It is good；

2nd, the assembling contact area of knife bar and blade is significantly increased, the stability and dynamic balance performance of whole cutter are obvious Improved, improve the security of cutter；

3rd, cutting force increases, and frictional force reduces, and tool wear degree slows down, and improves the durability of cutter；

4th, circular saw bit is good using security when deforming；

5th, cutter assembly and connection is efficient and convenient.

Claims (7)

1. a kind of comb core milling cutter, it is characterised in that：Including knife bar (1), circular saw bit (2), pad (3), fastening spiral shell Bolt (4), the leading portion of the knife bar (1) is horn-like blade linkage section (11), and the back segment of the knife bar (1) is shaft-like clamping Section (12), the circular saw bit (2) is fitted with the end face (13) of the blade linkage section (11), the pad (3) and the circle Disk saw blade (2) is fitted, and the fastening bolt (4) is arranged in the pad (3), circular saw bit (2) and is connected with the blade successively Section (11) is fixed.

2. comb core milling cutter according to claim 1, it is characterised in that：The end face of the blade linkage section (11) (13) transition shoulder (14) is offered on, the circumferential edge of the pad (3) is concave surface (31), described in concave surface (31) support The inner ring hole (21) of circular saw bit (2), the diameter of the inner ring hole (21) is less than the diameter of the transition shoulder (14).

3. comb core milling cutter according to claim 2, it is characterised in that：Also opened up on the transition shoulder (14) There is the boss (32) having on deep gouge (15), the pad (3) with the deep gouge (15) form fit, the boss (32) passes through The embedded deep gouge (15) of the inner ring hole (21).

4. comb core milling cutter according to claim 2, it is characterised in that：The concave surface (31) is in the circular saw One section of opposing straight on the inside of piece (2), one section of relatively upper lift on the outside of the circular saw bit (2).

5. comb core milling cutter according to claim 1, it is characterised in that：The blade linkage section (11), clamping With circular arc chamfering (16) transition between section (12).

6. comb core milling cutter according to claim 1, it is characterised in that：The end face of the blade linkage section (11) (13) it is disc face.

7. comb core milling cutter according to claim 3, it is characterised in that：The transition shoulder (14) is sunk with described With chamfering (17) transition between groove (15).