CN217412476U - PCD small boring cutter - Google Patents

Abstract

The utility model relates to an accurate processing technology field especially relates to a little boring cutter of PCD that accurate processing used. For the support intensity that improves the tool bit of PCD boring cutter, the utility model provides a PCD boring cutter, this PCD boring cutter include tool bit and handle of a knife, the prong of tool bit surpasss the central axis of handle of a knife. Thus, the utility model discloses the blade point of the tool bit among the little boring cutter of PCD surpasss the central axis of handle of a knife, can increase the height of tool bit to the rigidity of tool bit is guaranteed in the support intensity of reinforcing tool bit, prolongs the life of tool bit, and then prolongs the utility model discloses the life of little boring cutter of PCD.

Description

PCD small boring cutter

Technical Field

The utility model relates to an accurate processing technology field especially relates to a little boring cutter of PCD that accurate processing used.

Background

The blade tip of the tool bit of the existing PCD small boring tool is as high as the central axis of the tool handle, so that the supporting strength of the tool tip of the existing PCD small boring tool is poor, the tool tip is easy to damage and even break, and the processing of a workpiece is influenced.

SUMMERY OF THE UTILITY MODEL

For the support intensity of the tool bit that improves PCD little boring cutter, the utility model provides a PCD little boring cutter, this PCD little boring cutter include tool bit and handle of a knife, the sword point of tool bit surpasss the central axis of handle of a knife. Thus, the utility model discloses the sword point of the tool bit among the little boring cutter of PCD surpasss the central axis of handle of a knife, can increase the height of tool bit to the rigidity of tool bit is guaranteed to the support intensity of reinforcing tool bit, prolongs the life of tool bit, and then prolongs the utility model discloses little boring cutter of PCD's life.

Preferably, the distance between the cutting edge and the central axis of the tool shank is h, the diameter of the tool shank is D, and

thus, in processing the utility model discloses during the little boring cutter of PCD, can be according to the interval between the central axis of the diameter adjustment prong of handle of a knife and handle of a knife, convenient processing.

Preferably, when the diameter D of the tool shank is less than or equal to 10mm, the distance h is 1 mm. Thus, work as the utility model discloses PCD little boring cutter is when handle of a knife diameter is no longer than 10 mm's small-size boring cutter, only needs to surpass the central axis of handle of a knife with the point of edge highly to set for 1mm and can satisfy the support intensity requirement of tool bit.

Preferably, the tool shank is provided with a positioning groove. Thus, will the utility model discloses when the little boring cutter of PCD is installed on the knife rest, handle of a knife mounting hole block location on usable positioning groove and the knife rest is avoided the utility model discloses the little boring cutter of PCD takes place to rotate because of the handle of a knife and the dislocation problem appears in the use influences the utility model discloses the use of little boring cutter of PCD. Preferably, the locating groove is located in an upper portion of the shank and remote from the tool bit. Like this, can avoid positioning groove to be close to the one end of tool bit and be connected with the tool bit, influence the support intensity of tool bit.

Drawings

FIG. 1 is a schematic structural view of a PCD small boring cutter of the present invention in a front view;

fig. 2 is a schematic view of the PCD small boring cutter of the present invention in a top view.

Detailed Description

Next, the PCD small boring cutter of the present invention will be described in detail with reference to fig. 1 and 2.

As shown in figures 1 and 2, the PCD small boring cutter of the utility model comprises a cutter head 1 and a cutter handle 2, wherein the cutting edge 11 of the cutter head 1 exceeds the central axis l of the cutter handle 2. Thus, the utility model discloses the sword point 11 of tool bit 1 in the little boring cutter of PCD surpasss the central axis l of handle of a knife 2, can increase the height of tool bit 1 to strengthen tool bit 1' sSupport intensity, guarantee tool bit 1's rigidity, extension tool bit 1's life, and then the extension the utility model discloses PCD boring cutter's life. Preferably, the distance between the cutting edge 11 of the cutting head 1 and the central axis of the shank 2 is h, the diameter of the shank 2 is D, and

like this, processing the utility model discloses during the little boring cutter of PCD, can be according to the interval between the central axis of the diameter adjustment prong 11 of handle of a knife 2 and handle of a knife 2, convenient processing. Preferably, when the diameter D of the shank 2 is 10mm or less, the distance h between the cutting edge 11 of the cutting head 1 and the central axis l of the shank 2 is 1 mm. Thus, when the utility model discloses PCD little boring cutter is when 2 diameters of handle of a knife are no longer than 10 mm's small-size boring cutter, only need to surpass the central axis l of handle of a knife 2 with tip 11 highly set for 1mm and can satisfy the support intensity requirement of tool bit 1.

As shown in figures 1 and 2, the utility model discloses be provided with positioning groove 21 on the handle of a knife 2 of little boring cutter of PCD. Thus, will the utility model discloses when the little boring cutter of PCD is installed on the knife rest, handle of a knife mounting hole block location on usable positioning groove 21 and the knife rest is avoided the utility model discloses little boring cutter of PCD takes place to rotate because of the handle of a knife and appears the dislocation problem, influences in the use the utility model discloses little boring cutter of PCD's use. Preferably, the positioning groove 21 is located in an upper portion of the shank 2 and away from the cutting head 1. Thus, the end of the positioning groove 21 close to the cutter head 1 is prevented from being connected with the cutter head 1, and the supporting strength of the cutter head 1 is prevented from being affected.

Use the utility model discloses during little boring cutter of PCD, for the sharp height invariant of guaranteeing its tool bit, the height of the handle of a knife mounting hole on the accessible adjustment knife rest is realized. For example, work as the utility model discloses when PCD little boring cutter's handle of a knife diameter was 8mm, the height that the central axis of handle of a knife was surpassed to the point of edge of its tool bit was 1mm, so only need with the central axis of the handle of a knife mounting hole of knife shelf location handle of a knife reduce 1mm can, convenient and simple to use.

Claims (4)

1. The PCD small boring cutter is characterized by comprising a cutter head and a cutter handle, wherein the cutting edge of the cutter head exceeds the central axis of the cutter handle, and the cutting edgeThe distance between the two knife handles and the central axis of the knife handle is h, the diameter of the knife handle is D, and

2. the PCD small boring cutter according to claim 1, wherein when the diameter D of the shank is not greater than 10mm, the distance h is 1 mm.

3. A PCD boring tool according to claim 1 or 2, characterised in that the shank is provided with locating grooves.

4. The PCD boring cutter of claim 3, wherein the locating groove is located in an upper portion of the shank and remote from the tool tip.

Images