CN-224222812-U - Novel single crystal diamond upper and lower chamfer cutter

CN224222812UCN 224222812 UCN224222812 UCN 224222812UCN-224222812-U

Abstract

The utility model relates to the field of hardware milling processing, and discloses a novel single crystal diamond upper and lower chamfering tool which comprises a first tool handle, a second tool handle, a tool bit, a chamfering tool and a side milling cutter, wherein an upper groove is formed in the second tool handle in the radial direction, a lower groove is formed in the tool bit in the radial direction, one end of the chamfering tool is fixed in the lower groove, one end of the side milling cutter is fixed in the upper groove, the chamfering tool is a prismatic blade, an upper cutting edge and a lower cutting edge are arranged at the edge of the chamfering tool, which is far away from the tool bit, an included angle formed by the upper cutting edge and the lower cutting edge is 80 degrees, the center line of the chamfering tool bit, the center line of the tool bit and one end of the side milling cutter, which is far away from the first tool handle, are sequentially arranged at intervals along a straight line, and one end of the upper cutting edge, which is close to the second tool handle, extends to the inner side of a movement track of the side cutting edge. The upper cutting edge and the lower cutting edge of the chamfering tool are used for milling chamfers at the upper end and the lower end of the side face respectively, tool changing is not needed, and cutting efficiency is improved.

Inventors

TANG BINGWEI
LI HONGYAN
OuYang Debin
ZHU XIAOMING

Assignees

惠州市耀盈精密技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250729

Claims (10)

1. The novel single crystal diamond upper and lower chamfering tool is characterized by comprising a first tool handle, a second tool handle, a tool bit, a chamfering tool and a side milling cutter, wherein two ends of the second tool handle are respectively connected with the first tool handle and the tool bit; The second cutter handle and the cutter head are coaxially arranged, an upper groove is formed in the second cutter handle along the radial direction, a lower groove is formed in the cutter head along the radial direction, one end of the chamfering cutter is fixed in the lower groove, one end of the side milling cutter is fixed in the upper groove, and a side cutting edge is arranged at the edge, far away from the second cutter handle, of the side milling cutter; The chamfering tool is a prismatic blade, an upper cutting edge and a lower cutting edge are arranged at the edge, far away from the tool bit, of the chamfering tool, the upper cutting edge and the lower cutting edge are sequentially arranged along the direction from the second tool shank to the tool bit, a tool nose is arranged at the intersection point of the upper cutting edge and the lower cutting edge, and an included angle formed by the upper cutting edge and the lower cutting edge is 80 degrees; The center line of the chamfering cutter, the center line of the cutter head and one end of the side milling cutter, which is far away from the first cutter handle, are sequentially arranged at intervals along a straight line, and one end of the upper cutting edge, which is close to the second cutter handle, extends to the inner side of the movement track of the side cutting edge.
2. The novel single crystal diamond up-down chamfering tool as set forth in claim 1, wherein the chamfering tool is a prismatic single crystal diamond grain, a short diagonal of the chamfering tool is parallel to a center line of the tool bit, a long diagonal of the chamfering tool is perpendicular to the center line of the tool bit, and a height of the tool bit is smaller than a length of the short diagonal of the chamfering tool.
3. The novel single crystal diamond upper and lower chamfering tool as set forth in claim 1, wherein the tool bit comprises an upper round table, a cylinder and a lower round table, the upper round table, the cylinder and the lower round table are sequentially and coaxially connected along a direction that the tool bit is far away from the second tool handle, the upper round table and the lower round table are symmetrically arranged, the upper cutting edge and the lower cutting edge are symmetrically arranged about a symmetry plane of the upper round table and the lower round table, and an inclination angle of a curved surface of the upper round table is equal to an inclination angle of the upper cutting edge.
4. The novel single crystal diamond up-down chamfering tool as set forth in claim 2, wherein the length of the long diagonal line of the chamfering tool is 4.4 mm-4.6 mm, and the length of the short diagonal line of the chamfering tool is 3.68 mm-3.88 mm.
5. The novel single crystal diamond up-down chamfering tool as set forth in claim 3, wherein the diameter of the first tool shank is equal to the diameter of the cylinder, the diameter of the first tool shank is 5.97 mm-6.03 mm, and the diameter of the second tool shank is 3.9 mm-4.1 mm.
6. The single crystal diamond chamfering tool as set forth in claim 1, wherein the chamfering tool has an upper rake face and a lower rake face symmetrically provided on one face, a flank face provided on the other face, the upper rake face and the lower rake face being connected to the flank face in sequence in a direction from the second shank to the bit, an intersection line between the upper rake face and the flank face forming the upper cutting edge, and an intersection line between the lower rake face and the flank face forming the lower cutting edge.
7. The novel single crystal diamond upper and lower chamfering tool according to claim 1, wherein the number of the chamfering tools is two, the lower grooves are formed in one end, close to the second tool shank, of the first tool shank and the tool bit in the radial direction, and the two chamfering tools are respectively arranged in the two lower grooves.
8. The novel single crystal diamond up-down chamfering tool as set forth in claim 1, wherein the side milling cutter is a tungsten steel alloy blade, the extending direction of the side milling cutter is parallel to the center line of the second cutter handle, the length of the side milling cutter is equal to the length of the second cutter handle, and the chamfering cutter and the side milling cutter are respectively arranged at two sides of the center line of the cutter head.
9. The novel single crystal diamond up-down chamfering tool as set forth in claim 8, wherein the second shank has junk slots, the extending direction of the junk slots is parallel to the center line of the second shank, and the cross section of the junk slots is gradually reduced along the direction approaching the tool bit.
10. The single crystal diamond up-down chamfering tool as set forth in claim 1, wherein said side milling cutter is a helical blade disposed around a center line of the second shank.

Description

Novel single crystal diamond upper and lower chamfer cutter Technical Field The utility model relates to the field of hardware milling, in particular to a novel single crystal diamond up-down chamfering tool. Background AL6063 aluminum is an industrial aluminum profile for relatively precise applications, and therefore, there are strict requirements for processing such aluminum profiles, especially in terms of cross-sectional shape and cutting effect. In the machining process, the side face of the aluminum appearance part is required to be milled, and then chamfering tools are used for milling chamfers at the upper end and the lower end of the side face of the aluminum appearance part. To aluminum product outward appearance spare side and chamfer milling, in order to avoid chamfer milling cutter and side milling cutter to take place to interfere when the processing, the operator trades the sword frequently in the course of working, seriously influences machining efficiency, and product quality is difficult to guarantee yet. Disclosure of utility model The utility model aims to provide a novel single crystal diamond up-down chamfering tool to solve the problems in the prior art. The novel single crystal diamond up-down chamfering tool comprises a first tool handle, a second tool handle, a tool bit, a chamfering tool and a side milling cutter, wherein two ends of the second tool handle are respectively connected with the first tool handle and the tool bit; The second cutter handle and the cutter head are coaxially arranged, an upper groove is formed in the second cutter handle along the radial direction, a lower groove is formed in the cutter head along the radial direction, one end of the chamfering cutter is fixed in the lower groove, one end of the side milling cutter is fixed in the upper groove, and a side cutting edge is arranged at the edge, far away from the second cutter handle, of the side milling cutter; The chamfering tool is a prismatic blade, an upper cutting edge and a lower cutting edge are arranged at the edge, far away from the tool bit, of the chamfering tool, the upper cutting edge and the lower cutting edge are sequentially arranged along the direction from the second tool shank to the tool bit, a tool nose is arranged at the intersection point of the upper cutting edge and the lower cutting edge, and an included angle formed by the upper cutting edge and the lower cutting edge is 80 degrees; The center line of the chamfering cutter, the center line of the cutter head and one end of the side milling cutter, which is far away from the first cutter handle, are sequentially arranged at intervals along a straight line, and one end of the upper cutting edge, which is close to the second cutter handle, extends to the inner side of the movement track of the side cutting edge. Preferably, the chamfering tool is a prismatic single crystal diamond tool grain, the short diagonal line of the chamfering tool is parallel to the central line of the tool bit, the long diagonal line of the chamfering tool is perpendicularly intersected with the central line of the tool bit, and the height of the tool bit is smaller than the length of the short diagonal line of the chamfering tool. Preferably, the tool bit includes round platform, cylinder and lower round platform, go up round platform, cylinder and lower round platform and follow the tool bit is kept away from the direction of second handle of a knife coaxial coupling in proper order, go up round platform and lower round platform symmetry setting, go up cutting edge and lower cutting edge and set up with the symmetry plane symmetry of round platform and lower round platform about going up, the inclination of the curved surface of round platform equals with the inclination of last cutting edge. Preferably, the length of the long diagonal line of the chamfering cutter is 4.4-4.6 mm, and the length of the short diagonal line of the chamfering cutter is 3.68-3.88 mm. Preferably, the diameter of the first cutter handle is equal to the diameter of the cylinder, the diameter of the first cutter handle is 5.97 mm-6.03 mm, and the diameter of the second cutter handle is 3.9 mm-4.1 mm. Preferably, the chamfer cutter is provided with an upper rake surface and a lower rake surface symmetrically, the other surface of the chamfer cutter is provided with a rear rake surface, the upper rake surface and the lower rake surface are sequentially connected to the rear rake surface along the direction from the second cutter handle to the cutter head, the upper cutting edge is formed by the junction line between the upper rake surface and the rear rake surface, and the lower cutting edge is formed by the junction line between the lower rake surface and the rear rake surface. Preferably, the chamfer cutter is fixed to the lower groove by welding or by a plug, and the side milling cutter is fixed to the upper groove by welding or by a plug. Preferably, the number of the chamferin