CN207188868U - A kind of ball cutter - Google Patents

Abstract

The utility model discloses a kind of ball cutter, including knife bar and blade, the knife bar and blade are flexibly connected, it is round table-like intermediate bar, knife bulb and connecting key that the knife bar, which includes, the knife bulb is located at the bottom of trapezoidal intermediate bar, and the connecting key is located at the top of trapezoidal intermediate bar；The knife bulb includes two blade clamps in cylinder, and the medial launder for being used for placing blade is provided among two blade clamps, and multiple the first bolts hole for being used to fix blade are equipped with two cutter head clamps；The diameter of the blade is more than the diameter of insert cartridges；The blade is provided with multiple second bolts hole corresponding with the first bolt hole.The utility model is simple in construction, the use of different blades can be realized by dismounting, so as to meet the processing to unlike material different product, and it is also very convenient to change the blade that damage is fallen, the cost of knife bar is decreased simultaneously, extends the service life of milling cutter lathe and knife bar.

Description

A kind of ball cutter

Technical field

The utility model belongs to cutter field, and in particular to a kind of ball cutter.

Background technology

Milling cutter, it is the rotary cutter for Milling Process, with one or more cutters tooth.During work each cutter tooth successively between Cut the surplus of workpiece with having a rest.Milling cutter is mainly used in processing plane, step, groove, profiled surface and cut-out workpiece on milling machine Deng.Ball cutter is mainly used in cutting arcuate surface, for the processing of surface forming and special-shaped outline etc., in working angles Edge of milling cutter is mainly that bottom and bottom periphery position contact with workpiece surface, and the top of blade will not connect with workpiece surface Touch, edge of milling cutter part is typically made up of materials such as hard alloy, ceramics, cermet, cubic boron nitrides.

Traditional ball cutter is typically one, can not be dismantled, particularly after the cutter head damage of milling cutter, nothing Method is only changed by dismantling realization to cutter head, so as to cause the waste of whole milling cutter；And during the manufacturing, warp The cutter head of different size can be often used, and is not only wasted when being changed to cutter head, it is necessary to whole milling cutter is changed The cost of milling cutter, get off will also result in the damage of milling cutter lathe junction for a long time.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is to propose a kind of ball cutter, the ball cutter knot Structure is simple, and the use of different blades can be realized by dismounting, so as to meet the processing to unlike material different product, and is changed The blade that damage is fallen is also very convenient, while decreases the cost of knife bar, extends the service life of milling cutter lathe and knife bar.

To achieve the above object, technical scheme is used by the utility model：

A kind of ball cutter, the ball cutter include knife bar and blade, and the knife bar and blade are flexibly connected, the knife bar Including intermediate bar, the both ends difference knife bulb and connecting key of intermediate bar, the intermediate bar is in round table-like, and the knife bulb, which is located at, is in The bottom of round table-like intermediate bar, the connecting key are located at the top in round table-like intermediate bar；The knife bulb includes two It is provided with the insert cartridges of cylinder, between two insert cartridges and is used to placing the medial launder of blade, on two cutter head clamp Provided with multiple the first bolts hole for being used to fix blade；

The diameter of the blade is more than the diameter of insert cartridges, and the outer end of the blade is provided with blade；Set on the blade There are multiple second bolts hole corresponding with the first bolt hole.

It is further that the positive and negative primary clearance of the blade is 3~10 °；The edge structure of different blades is different, The angle of the positive and negative primary clearance of different blades is different, so as to meet the processing of the product of various material plurality of specifications.

It is further that the connecting key is 35 × 25mm of φ, thickness 15mm fish tail key；The ball cutter passes through fish tail Key is fixed on lathe.

It is further that the insert cartridges are provided with four the first bolts hole, the blade is provided with four and the The second corresponding bolt hole of one bolt hole；Blade is put into medial launder, by bolt or rivet insert the first bolt hole and Blade is fixed in second bolt hole.

The beneficial effects of the utility model are：

(1) the utility model is simple in construction, convenient processing and manufacture, and the ball cutter can coordinate a variety of rule by a knife bar The blade of lattice is used, and the purpose of the processing to different product unlike material can be achieved, and not only increases the model of material processing Enclose, also improve the quality of production of product；

(2) blade can only be dismantled, reduced between knife bar and milling cutter lathe when being changed by the ball cutter Replacing, extend the service life of knife bar and lathe, greatly reduce cost；In breaks down, also only need to blade Changed, avoid being changed on whole milling cutter, saved material, reduced cost；

(3) various blade removals can be got off in the utility model and carries out time-based maintenance maintenance, processing and manufacturing can be improved Efficiency, the roughness of product surface is improved, ensure that the quality of product.

Brief description of the drawings

Fig. 1 is side view of the present utility model

Fig. 2 is the side view of knife bar of the present utility model；

Fig. 3 is top view of the present utility model；

Fig. 4 is the top view of knife bar of the present utility model.

In figure：1st, intermediate bar；2nd, insert cartridges；3rd, connecting key；4th, medial launder；5th, the first bolt hole；6th, blade；7th, Two bolts hole.

Embodiment

In order that the purpose, technical scheme and advantage of utility model are clearer, below in conjunction with the accompanying drawings to the utility model It is further elaborated.

In the present embodiment, as shown in figures 1-4, a kind of ball cutter, the ball cutter includes knife bar and blade 6, described Knife bar and blade 6 are flexibly connected, and the knife bar includes intermediate bar 1, and the both ends difference knife bulb and connecting key 3 of intermediate bar are described Intermediate bar 1 is in round table-like, and the knife bulb is located at the bottom in round table-like intermediate bar 1, and it is in round platform that the connecting key 3, which is located at, The top of the intermediate bar of shape；The knife bulb includes two insert cartridges 2 in cylinder, is provided among two insert cartridges 2 For placing the medial launder 4 of blade 6, multiple the first bolts hole 5 for being used to fix blade 6 are equipped with two cutter head clamps 2；

The diameter of the blade 6 is more than the diameter of insert cartridges 2, and the outer end of the blade 6 is provided with blade；On the blade Provided with multiple second bolts hole 7 corresponding with the first bolt hole 5.

A kind of technical optimization scheme of the present utility model, the positive and negative primary clearance of the blade is 3~10 °；It is different The edge structure of blade 6 is different, and the angle of the positive and negative primary clearance of different blades is different, so as to enter to the material of unlike material Row processing, substantially increase the scope of processing and manufacturing.

A kind of technical optimization scheme of the present utility model, the connecting key 3 are 35 × 25mm of φ, thickness 15mm fish tail Key；The ball cutter is fixed on lathe by fish tail key 3.

A kind of technical optimization scheme of the present utility model, the insert cartridges 2 are provided with four the first bolts hole 5, institute State blade 6 and be provided with four second bolts hole 7 corresponding with the first bolt hole 5；Blade 6 is put into medial launder 4, passes through bolt Or rivet inserts in the first bolt hole 5 and the second bolt hole 7 and blade 6 is fixed.

The overall long 197mm of the ball cutter, the diameter of two insert cartridges 2 is φ 50, and its thickness is 7.5mm, in Between the thickness of groove 4 be 10 ± 0.01mm, the length of intermediate bar 1 is 120mm, and the basal diameter in round table-like intermediate bar 1 is φ 44.88+0.02mm a diameter of φ 38.4-0.02mm of top surface；The wherein material of blade 6 is W9Cr4V2, the first bolt hole 5 and The diameter of two bolts hole 7 is φ 8, and the angle of the positive and negative primary clearance of the upper knife edge of blade 6 is depending on different blade models.

When specifically used, suitable blade 6 is selected according to material to be processed and product, then placed blade 6 In medial launder 4, it is fixed by bolt or rivet；When more raw material are changed, the suitable blade 6 of reselection is cut Cut；If blade 6 damages, directly blade removal is fallen, new blade 6 is installed.

The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model Claimed scope is by appended claims and its equivalent thereof.

Claims (4)

1. A kind of 1. ball cutter, it is characterised in that：The ball cutter includes knife bar and blade (6), and the knife bar and blade (6) are living Dynamic connection, the knife bar include intermediate bar (1), the both ends difference knife bulb and connecting key (3) of intermediate bar, the intermediate bar (1) In round table-like, the knife bulb is located at the bottom in round table-like intermediate bar (1), and the connecting key (3) is located in round table-like The top of intermediate bar (1)；The knife bulb includes two insert cartridges (2) in cylinder, is set between two insert cartridges (2) There is the medial launder (4) for placing blade (6), be equipped with two insert cartridges (2) multiple for fixing the first of blade (6) Bolt hole (5)；

   The diameter of the blade (6) is more than the diameter of insert cartridges (2), and the outer end of the blade (6) is provided with blade；The blade (6) multiple second bolts hole (7) corresponding with the first bolt hole (5) are provided with.
2. A kind of 2. ball cutter according to claim 1, it is characterised in that：The positive and negative primary clearance of the blade is 3 ~10 °.
3. A kind of 3. ball cutter according to claim 2, it is characterised in that：The connecting key (3) is 35 × 25mm of φ, thickness Spend 15mm fish tail key.
4. A kind of 4. ball cutter according to claim 3, it is characterised in that：The insert cartridges (2) are provided with four First bolt hole (5), the blade (6) are provided with four second bolts hole (7) corresponding with the first bolt hole (5).