CN211640062U

CN211640062U - Cutting and grinding integrated cutter

Info

Publication number: CN211640062U
Application number: CN201922307301.XU
Authority: CN
Inventors: 梁晓铧; 唐志锋
Original assignee: Shenzhen Taikesite Precision Industry Co ltd
Current assignee: Shenzhen Taikesite Precision Industry Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-09
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses an integrative cutter of type is worn out in sanction, cutter body and evenly distributed in a plurality of teeth at cutter body edge are equipped with a cutting room between per two teeth, a plurality of teeth are including the edging tooth that is used for cutting the tooth and is used for the edging, cut the tooth with the edging tooth sets up in turn, it is greater than along cutter body radius direction to cut the tooth the height of edging tooth along cutter body radius direction. The utility model discloses an it finishes with edging one shot processing to cut into the integrative cutter of type to cut of PCB circuit board, has improved work efficiency greatly, and this cut into the integrative cutter of type and adopt cutting cutter and the edging cutter of installation in turn, realize respectively cutting and the edging function, right cut the cutter with the unique angle design of edging cutter, the mode of deburring is cut off earlier to the tradition relatively, cuts out the mill effect more excellent.

Description

Cutting and grinding integrated cutter

Technical Field

The utility model relates to a PCB board processing technology field especially relates to an integrative cutter of type is ground to sanction and mill.

Background

In the PCB base plate cuts the edging process, traditional processing mode that cuts does: the circuit board is firstly cut off in a cutting mode, and the cutting mode generally comprises saw blade processing, milling cutter processing, cutter wheel slitting processing and the like. And because burrs can be remained after shearing, edging the sheared burrs by using a trimming cutter to remove the burrs. Two working procedures of shearing and edging are required, the workload is large, and the working procedures are complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cut out and wear into integrative cutter of type, it adopts special cutter and operating angle to act on the PCB circuit board, makes to cut and accomplishes with edging one-time processing, and work efficiency improves greatly, and uses the product quality of this cutter production more excellent than traditional method.

The technical scheme of the utility model as follows: the utility model provides an integrative cutter of type is cut out to wear into, include: cutter body and evenly distributed in a plurality of teeth at cutter body edge, every two intertooth spaces are equipped with a sword room, a plurality of teeth are including the edging tooth that is used for the tooth that cuts and is used for the edging, cut the tooth with the edging tooth sets up in turn, cut the tooth and highly be greater than along cutter body radius direction the edging tooth is along cutter body radius direction's height.

Further, the cutting teeth comprise a cutting tool, the front angle of the cutting tool is 11 +/-1 degrees, the rear angle of the cutting tool is 13 +/-1 degrees, and the cutting angle of the cutting tool is 66 +/-2 degrees.

Further, the knife edge angle of the cutting tool is 35 +/-1 degrees, and the side angle of the cutting tool is 6-8 degrees.

Further, the edging tooth includes an edging cutter, the cutter anterior angle of edging cutter is 11 ± 1 °, the cutter relief angle of edging cutter is 24 ± 1 °, the knife angle of edging cutter is 55 ± 2 °.

Further, the edge angle of the edge grinding tool is 90 +/-2 degrees, and the side angle of the edge grinding tool is 6-8 degrees.

Further, the main body thicknesses of the cutting teeth and the edging teeth are both 3 +/-0.5 mm.

Further, the height of the cutting teeth along the radius direction of the cutter body is 0.9 +/-0.1 mm or 1.8 +/-0.1 mm larger than the height of the grinding teeth along the radius direction of the cutter body.

Further, the diameter of the cutting and grinding integrated cutter is 140-150 mm, the number of teeth on the cutter body is even, and the number of teeth is between 32 and 40.

Further, the number of the teeth is 36, and the number of the cutting teeth and the number of the edging teeth are both 18.

Further, the cutter body is alloy steel material, the cutting tool of cutting the tooth with the edging cutter of edging tooth is compound diamond material.

According to the above technical scheme, the utility model discloses an it cuts into integrative cutter of type to cut and the edging one shot forming is accomplished to the PCB circuit board, has improved work efficiency greatly, and this cut into the integrative cutter of type adopts cutting tooth and the edging tooth of installation in turn, realizes respectively cutting and the edging function, right cut the cutter with the unique angle design of edging cutter, the mode of deburring is cut off earlier than the tradition relatively, cuts out the mill effect more excellent.

Drawings

Fig. 1 is a general schematic view of the cutting and grinding integrated cutter of the utility model.

Fig. 2 is a schematic view of the cutting tool of the integrated cutting tool for cutting and grinding.

Fig. 3 is a schematic view of the side of the cutting edge of the cutting tool of the cutting and grinding integrated tool of the present invention.

Fig. 4 is a schematic view of the edge grinding tool of the integrated cutting tool of the present invention.

Fig. 5 is a schematic view of the edge side of the edge grinding tool of the cutting and grinding integrated tool of the present invention.

Fig. 6 is a schematic side view of the cutting and grinding integrated cutter of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 6, the present invention provides a cutting and grinding integrated tool, which includes: cutter body 1, evenly distributed in a plurality of teeth 2 at cutter body 1 edge, tooth 2 is including the edging tooth 22 that is used for the cutting tooth 21 that cuts and is used for the edging, cutting tooth 21 with edging tooth 22 sets up in turn, cutting tooth 21 is greater than along cutter body radius direction's height grinding tooth 22 is along cutter body radius direction. Specifically, a knife chamber 5 is arranged between every two teeth, and the knife chamber 5 is a plurality of arc-shaped gaps positioned between the two teeth and plays a role of temporarily containing chippings generated by the cutting and grinding. The front end of cutting tooth 21 is installed and is cut cutter 3, edging cutter 4 is installed to the front end of edging tooth 22. The cutter body 1 is made of disc-shaped alloy steel; cutting tool 3 with edging tool 4 is compound diamond material, and the texture is hard, satisfies the sanction mill demand of PCB circuit board, cutting tool 3 welds on sanction tooth 21, edging tool 4 weld in on the edging tooth 22. The main body thickness H of the cutting tool 3 and the edging tool 4 is 3 +/-0.5 mm. The diameter of the cutter body 1 is 140-150 mm, the number of the plurality of teeth 2 is even, and the number of the plurality of teeth is between 32 and 40, more preferably, the number of the teeth is 36, and the number of the cutting teeth 21 and the number of the grinding teeth 22 are 18 respectively. In the specific cutting process, the rotating speed of the cutter body 1 is 3000-6000RPM, so that a better machining effect is achieved.

As shown in fig. 2 to 3, the front angle γ 1 of the cutting tool 3 is 11 ± 1 °, the rear angle α 1 of the cutting tool 3 is 13 ± 1 °, and the cutting angle a1 of the cutting tool 3 is 66 ° ± 2 °. The knife edge angle B of the cutting tool 3 is 35 +/-1 degrees. When the cutter body 1 integrally operates, the cutting cutter 3 plays a role in cutting the PCB. The front angle gamma 1 of the cutting tool 3 is small, so that the cutting is convenient, the knife edge angle B1 is small and is 35 +/-1 degrees, the knife edge is sharp, and the PCB is cut more easily.

As shown in fig. 4-5, the front angle γ 2 of the edging tool 4 is 11 ± 1 °, the rear angle α 1 of the edging tool 4 is 24 ± 1 °, the cutting angle a2 of the edging tool 4 is 55 ± 2 °, the cutting angle B' of the edging tool 4 is 90 ± 2 °, and the edging tool 4 performs edging on the PCB circuit board when the tool body 1 integrally operates. The relief angle alpha 1 of this edging cutter 4 is great, and the piece that produces after the edging of being convenient for gets into the sword room, and then discharges outside cutter body 1. And the edge angle B2 of the edge grinding cutter 4 is larger and is 90 +/-2 degrees, so that the edge is passivated, and the edge grinding effect is better achieved.

In addition, the cutting tool 3 and the edging tool 4 are also provided with back blades, and the back blades are all provided with side angles of 6-8 degrees. When cutting and edging, the side angle is smaller than the knife edge angle, and after the product is cut by the knife edge at the front end, the back edge can not be in contact friction with the product, new burrs are generated, and chip removal is smoother.

As shown in fig. 6, the length of the cutting tool 3 extending out of the cutting teeth 21 along the radius direction of the cutter body 1 is a first length L1, the length of the edging tool 4 extending out of the edging teeth 22 along the radius direction of the cutter body 1 is a second length L2, the first length L1 is greater than the second length L2, and after the cutting tool 3 cuts the PCB, burrs protruding out of the cutting surface are ground by the edging tool 4. The cutting tools 3 and the edging tools 4 are alternately distributed, so that the cut PCB is immediately edged, and the cutting and the edging are integrated after repeated. Further, in one embodiment, the first length L1 is longer than the second length L2 by 0.9 ± 0.1mm, and the length difference is suitable for cutting and grinding the PCB circuit board with the thickness of less than 3.5 mm; in another embodiment, the first length L1 is 1.8 + -0.1 mm longer than the second length L2, and this difference is suitable for trimming PCB circuit boards with a thickness of 3.5-6 mm.

In another embodiment, the cutting tool of the cutting tooth 21 and the edge grinding tool of the edge grinding tooth 22 are both made of diamond composite materials, the cutting tooth 21 has a cutting function, and the edge grinding tooth 22 has an edge grinding function.

To sum up, the utility model provides a cut out and wear into integrative cutter of type, through a large amount of experimental study, with the installation in turn on the cutter body cut out cutter and edging cutter, realized cutting out and grinding the integration, improved work efficiency greatly, practiced thrift manufacturing resource. This cut edge of a knife angle of cutter and edging cutter after optimizing, play the optimum and cut out the mill effect, and through the relative length design to this cutter and edging cutter, make the utility model discloses a cut out and grind the integrative cutter of type and can be applicable to the production of cutting out of the PCB circuit board of different thickness.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cutting and grinding integrated cutter is characterized by comprising: cutter body and evenly distributed in a plurality of teeth at cutter body edge, every two intertooth spaces are equipped with a sword room, a plurality of teeth are including the edging tooth that is used for the tooth that cuts and is used for the edging, cut the tooth with the edging tooth sets up in turn, cut the tooth and highly be greater than along cutter body radius direction the edging tooth is along cutter body radius direction's height.

2. The integrated cutter for trimming and shaping as claimed in claim 1, wherein the cutting teeth comprise a cutting tool having a tool rake angle of 11 ± 1 °, a tool relief angle of 13 ± 1 °, and a tool angle of 66 ° ± 2 °.

3. The one-piece cutting and grinding tool as set forth in claim 2, wherein the cutting edge angle of the cutting tool is 35 ± 1 °, and the side angle of the cutting tool is 6 ° to 8 °.

4. The one-piece cutting and grinding tool of claim 1, wherein the grinding tooth comprises an edging cutter, the edging cutter has a cutter front angle of 11 ± 1 °, a cutter rear angle of 24 ± 1 °, and a cutter angle of 55 ± 2 °.

5. The one-piece cutting and grinding tool of claim 4, wherein the edge angle of the edge grinding tool is 90 ± 2 ° and the side angle of the edge grinding tool is 6 ° -8 °.

6. The integrated cutting and grinding tool as claimed in claim 1, wherein the main body thickness of the cutting teeth and the main body thickness of the edging teeth are both 3 ± 0.5 mm.

7. The one-piece cutter of claim 1, wherein the height of said cutting teeth along the radius of said cutter body is greater than the height of said grinding teeth along the radius of said cutter body by 0.9 + 0.1mm or 1.8 + 0.1 mm.

8. The integrated cutting and grinding tool as claimed in claim 1, wherein the diameter of the integrated cutting and grinding tool is 140-150 mm, the number of teeth on the tool body is even, and the number of teeth is between 32 and 40.

9. The integrated cutting and grinding tool as set forth in claim 1, wherein the number of said teeth is 36, and the number of said cutting teeth and said grinding teeth is 18.

10. The integrated cutting tool of claim 1, wherein the cutting tool body is made of alloy steel, and the cutting tool of the cutting tooth and the edge grinding tool of the edge grinding tooth are both made of composite diamond.