CN213559927U

CN213559927U - PCD cutter with chip breaker structure

Info

Publication number: CN213559927U
Application number: CN202022521196.2U
Authority: CN
Inventors: 周鹏; 何桦
Original assignee: Shenzhen Kalwite Industrial Intelligence Co ltd
Current assignee: Shenzhen Kalwite Industrial Intelligence Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-29
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a PCD cutter with chip breaker groove structure, which comprises a cutter handle part and a cutter head part arranged at one end of the cutter handle part, wherein the upper end surface of the cutter head part is a front cutter surface, an invagination type mounting position is arranged on the front cutter surface of the cutter head part, and a chip breaker body matched with the invagination type mounting position is arranged on the invagination type mounting position; the chip breaking body is uniformly provided with a plurality of chip breaking grooves along the periphery of the chip breaking body, an included angle A is formed between every two adjacent chip breaking grooves, the width of a gap between every two adjacent chip breaking grooves is R, and the distance between each chip breaking groove and the cutting edge of the front cutter face is L; adopt above-mentioned scheme, the utility model discloses simple structure just becomes more short and small and even when making the smear metal produce at the practical application in-process, and contour surface quality promotes by a wide margin, has effectively improved various badness that continuous smear metal produced, has catered to the demand in market, has good market using value.

Description

PCD cutter with chip breaker structure

Technical Field

The utility model relates to an automobile wheel hub chip breaking field especially relates to, a PCD cutter with chip breaker structure.

Background

The chip breaking prevention during the turning and finish machining of the hub is always a troublesome problem, and the chip breaking prevention can cause chip winding of a cutter and damage to a cutting edge; and the processed surface can be scratched by the scraps winding participating in the processing, so that the product is scrapped, and the processing efficiency of the automatic production process is greatly influenced. The prior art has defects and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a PCD cutter that has chip breaker groove structure of novel simple structure is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a PCD cutter with a chip breaker groove structure comprises a cutter handle part and a cutter head part arranged at one end of the cutter handle part, wherein the upper end surface of the cutter head part is a front cutter surface, an invagination type mounting position is arranged on the front cutter surface of the cutter head part, and a chip breaker body matched with the invagination type mounting position is arranged on the invagination type mounting position;

the chip breaking body evenly sets up a plurality of chip breakers along its periphery, forms contained angle A between every two adjacent chip breakers, the clearance width between every two adjacent chip breakers is R, the distance of chip breaker and rake face blade is L.

Preferably, in the PCD cutting tool having a chip breaker groove structure, the rake face has an arc-shaped structure, and the chip breaker is provided along an inner periphery of the arc-shaped rake face.

Preferably, in the PCD cutter with the chip breaker structure, nine chip breakers are uniformly arranged along the periphery of the chip breaker body, and the nine chip breakers are arranged in a gear shape.

Preferably, in the PCD cutting tool with the chip breaker groove structure, the chip breaker groove is an R-shaped groove.

Preferably, in the PCD cutter with the chip breaker groove structure, an included angle a between every two adjacent chip breaker grooves is 60 °.

Preferably, in the PCD cutter with the chip breaker groove structure, the gap width R between every two adjacent chip breaker grooves is not more than 0.1 mm.

Preferably, in the PCD cutting tool with the chip breaker groove structure, the distance L between the chip breaker groove and the cutting edge of the rake face is not more than 0.4 mm.

Preferably, in the PCD cutting tool with the chip breaker groove structure, the lower side end face of the front tool face of the tool head portion is a rear tool face, and an included angle B is formed by the rear tool face and a perpendicular line of the cutting edge of the front tool face.

Preferably, in the PCD cutting tool with the chip breaker groove structure, an included angle B between the cutting edge perpendicular line of the flank face and the cutting edge perpendicular line of the rake face is 7 °.

Preferably, in the PCD cutting tool having the chip breaker groove structure, the height of the upper surface of the chip breaker body is smaller than the height of the upper surface of the rake face.

The beneficial effects for prior art are that, adopt above-mentioned scheme, the utility model discloses simple structure just becomes more short and small and even when making the smear metal produce at the practical application in-process, and contour surface quality promotes by a wide margin, has effectively improved various harmfully that continuous bits produced, has catered to the demand in market, has good market using value.

Drawings

Fig. 1 is a top view of a PCD cutter in accordance with an embodiment of the invention;

fig. 2 is a front view of the PCD cutter of the embodiment of fig. 1 of the present invention;

fig. 3 is a schematic structural view of the rake face of the PCD cutter of the embodiment of fig. 1 of the present invention;

the figures above show: the tool comprises a tool shank part 1, a tool head part 2, a front tool face 3, a rear tool face 4, a chip breaker 5 and a chip breaker groove 6.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "fixed," "opposing," "central," "symmetrical," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-3, an embodiment of the present invention is a PCD cutting tool with a chip breaker groove 6 structure, which includes a shank portion 1 and a tool head portion 2 mounted at one end of the shank portion 1, an upper end surface of the tool head portion 2 is a rake surface 3, an invaginated mounting position is provided on the rake surface 3 of the tool head portion 2, and a chip breaker body 5 adapted to the invaginated mounting position is provided on the invaginated mounting position; preferably, the rake face 3 is a circular arc-shaped structure, and the chip breaker 5 is arranged along the inner periphery of the circular arc-shaped rake face 3. Further, the chip breaker 5 is of a circular arc structure matched with the rake face 3. Preferably, the lower end surface of the rake surface 3 of the nose portion 2 is a flank surface 4. For example, the tool head 2 is installed at the left end of the tool shank 1, the upper end surface of the tool head 2 is a circular arc-shaped front tool surface 3, the left end surface of the lower side of the front tool surface 3 is a rear tool surface 4, and the rear tool surface 4 is inclined to the right and forms an included angle with the perpendicular line of the cutting edge of the front tool surface 3; a circular arc-shaped invagination type mounting position is arranged at the position of the circular arc-shaped front knife surface 3 close to the cutting edge of the front knife surface 3 along the inner circumference of the front knife surface 3, and a circular arc-shaped chip breaker 5 is fixed in the invagination type mounting position. Adopt above-mentioned scheme, this scheme simple structure cooperates 70 KG's high pressure at the practical application in-process, just becomes more short and small and even when making the smear metal produce, and contour surface quality promotes by a wide margin, has effectively improved various badness that constantly the bits produced, has catered to the demand in market, has good market using value.

Chip breaking body 5 evenly sets up a plurality of chip breakers 6 along its periphery, forms contained angle A between every two adjacent chip breakers 6, every adjacent two clearance width between the chip breakers 6 is R, the distance of

chip breaker

6 and 3 blades of rake face is L. Preferably, nine chip breakers 6 are uniformly arranged on the chip breaker 5 along the periphery of the chip breaker, and the nine chip breakers 6 are arranged in a gear shape. Furthermore, the chip breaker groove 6 is an R-shaped groove and is formed by laser etching through a DMG laser machine, and the chip breaker groove 6 is designed to effectively control the flow direction of chips and enable the chips to be curled and broken in the designed direction. Preferably, the included angle a is an inner included angle formed by connecting line of groove walls of two adjacent chip breakers 6. Preferably, the included angle a between every two adjacent chip breakers 6 is 60 °. Preferably, the gap width R is the distance between the notches of every two adjacent chip breakers 6, and the gap width R is not more than 0.1 mm. For example, two adjacent chip breakers 6 are a left slot and a right slot, and the distance between the position of the right slot wall notch of the left slot and the position of the left slot wall notch of the right slot is the gap width R. Preferably, the distance L between the chip breaker 6 and the cutting edge of the rake face 3 is not more than 0.4 mm. For example, in the embodiment, the circular arc-shaped rake face 3 is selected, the chip breaker 5 with the circular arc-shaped structure is fixed on the upper surface of the circular arc-shaped rake face 3, nine R-shaped grooves which are arranged in a gear shape are uniformly arranged on the chip breaker 5, the included angle a between every two adjacent chip breakers 6 is 60 degrees, the gap width R between every two adjacent chip breakers 6 is 0.1mm, and the distance L between the notch of each chip breaker 6 and the cutting edge of the rake face 3 is 0.4 mm. The flow direction of the chips is effectively controlled through the 9 unique R forming grooves, the chips are curled and broken according to the designed direction, the chips are smoothly discharged after being broken, the phenomenon that the chips are wound on the workpiece or accumulated chips in the grooves is avoided, the chips are prevented from being scratched on the workpiece, and the surface smoothness of the workpiece is improved.

Preferably, the lower side end face of the front knife face 3 of the knife head part 2 is a rear knife face 4, and an included angle B is formed between the rear knife face 4 and a perpendicular line of a cutting edge of the front knife face 3. Preferably, the included angle B between the cutting edges of the back knife face 4 and the front knife face 3 is 7 degrees.

Preferably, the height of the upper surface of the chip breaker is smaller than the height of the upper surface of the rake face. Preferably, a cutting edge is arranged on a connecting wall between every two adjacent chip breaker groove openings, and the height of the upper surface of the cutting edge is smaller than that of the upper surface of the front tool face. The cutting edges are arranged at intervals. For example, the nine chip breakers are groove one, groove two, groove three, groove four, groove five, groove six, groove seven, groove eight and groove nine, respectively, a cutting edge is arranged on a connecting wall between the groove one and a notch of the groove two, a cutting edge is arranged on a connecting wall between the groove three and a notch of the groove four, a cutting edge is arranged on a connecting wall between the groove five and a notch of the groove six, and a cutting edge is arranged on a connecting wall between the groove seven and a notch of the groove eight. When the cutter in the embodiment is used for machining a workpiece, secondary chip breaking is carried out through the cutting edge when chips flow into the chip breaking grooves, so that the chips are short, short and even when generated, the flow direction of the chips is effectively controlled, the chips are curled and broken according to the designed direction, the chips are smoothly discharged after being broken, the phenomenon that the chips are wound on the workpiece or accumulated chips in the grooves is avoided, the chips are prevented from scratching the workpiece, and the surface finish of the workpiece is improved.

In the embodiment, before a workpiece is machined, a chip breaking body is fixed on an invaginated mounting position on a front tool face, then a tool bit part is mounted at the left end of a tool shank part, and after the tool bit part is mounted, the tool bit part is subjected to alignment detection through detection equipment so as to determine whether the tool bit part is mounted in place; after the cutter head is accurately installed, carrying out alignment detection on the chip breaking body to confirm whether the chip breaking body cutter is installed in place or not; and after the accurate installation of the chip breaking body is confirmed, starting the processing equipment. At the high pressure of practical application in-process cooperation 70KG, through the effectual flow direction of controlling the smear metal of 9 unique R shaping grooves to make the smear metal curl and the chip breaking according to the direction of design, make the smear metal become more short and small and even, the smear metal discharges smoothly behind the chip breaking, avoids bits winding work piece or inslot long-pending bits phenomenon, avoids bits fish tail work piece, and contour surface quality promotes by a wide margin.

It should be noted that the above technical features are continuously combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A PCD cutter with a chip breaker groove structure is characterized by comprising a cutter handle part and a cutter head part arranged at one end of the cutter handle part, wherein the upper end surface of the cutter head part is a front cutter surface, an invagination type mounting position is arranged on the front cutter surface of the cutter head part, and a chip breaker body matched with the invagination type mounting position is arranged on the invagination type mounting position;

the chip breaking body is evenly provided with a plurality of chip breaking grooves along the periphery of the chip breaking body, an included angle A is formed between every two adjacent chip breaking grooves, every two adjacent chip breaking grooves are provided with a gap width R, and the distance between each chip breaking groove and the cutting edge of the front cutter face is L.

2. The PCD cutter with a chip breaker groove structure as claimed in claim 1, wherein the rake face is a circular arc-shaped structure, and the chip breaker body is provided along an inner periphery of the circular arc-shaped rake face.

3. The PCD cutter of claim 1, wherein the chip breaker body is provided with nine chip breakers uniformly along the periphery thereof, the nine chip breakers being arranged in a gear shape.

4. A PCD cutter with a chip breaker structure as claimed in claim 3, characterised in that the chip breaker is an R-shaped groove.

5. The PCD cutter with a chip breaker structure according to claim 1, wherein an included angle a between every two adjacent chip breakers is 60 °.

6. The PCD cutter with a chip breaker structure according to claim 1, wherein a gap width R between every two adjacent chip breakers is not more than 0.1 mm.

7. The PCD cutter with a chip breaker structure of claim 1 wherein the chip breaker is no more than 0.4mm from the rake face edge.

8. The PCD cutting tool with a chip breaker groove structure according to claim 1, wherein the lower side end surface of the rake face of the tool head portion is a flank face, and the flank face and a perpendicular line to the cutting edge of the rake face form an included angle B.

9. The PCD cutter with a chip breaker groove structure as claimed in claim 8, wherein the included angle B between the flank face and the perpendicular to the cutting edge of the rake face is 7 °.

10. The PCD cutter with a chip breaker structure of claim 1 wherein the height of the upper surface of the chip breaker body is less than the height of the upper surface of the rake face.