CN2492340Y

CN2492340Y - Drill bit grinding machine

Info

Publication number: CN2492340Y
Application number: CN 01231941
Authority: CN
Inventors: 陈静辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-24
Filing date: 2001-07-24
Publication date: 2002-05-22
Anticipated expiration: 2011-07-24

Abstract

The utility model discloses a drill-abdomen milling drum of drill bits, which is substantially designed for that, in prior art, the drill-abdomen of drill bits is grinded to be thin in manual mode with the defects that the drill bit trimming is easy to grind mistakenly, a fixture is designed for arranging the drill bit by clamping and the fixture is located on an adjusting pedestal with the inclination angle which is bigger than the drill-lip clearance angle of the drill bit, thereby the rear side of the drill-abdomen of the drill bit is grinded to be a grinding face with the caster angle of about 20 degrees, thereby the drill-abdomen can be grinded to be thin conveniently and quickly.

Description

The brill abdomen milling drum of drill bit

Technical field

The utility model relates to a kind of brill abdomen milling drum of drill bit.

Background technology

In the structure of the drill bit 30 of prior art, cutting end face (as shown in Figure 7) by drill bit 30, after wherein drill bit 30 grinds and finishes, include two symmetrical side cuts 31 of cutting power, two cut edge 31 between relative helicla flute, formation has the brill abdomen 32 of solid thickness, and the intersection central authorities of 30 liang of sidetracking abdomens 32 of drill bit, form the dead point 33 of a wire, the side cut 31 of general drill bit 30 is to the angle of dead point 33 extension lines, form the angle of 115 degree approximately, this is the drill bit end structure that generally can carry out drilling processing.

The personage who knows machining knows, the dead point 33 of drill bit is bigger, interference when causing drilling more easily, so finishing technique of prior art, be to bore abdomen 32 at two of drill bit 30 to be ground to a grinding part 320 (as shown in Figure 8), use that brill abdomen 32 wear downs are formed a short dead point 330, purpose more smoothly when reaching drilling.

But the mode of abdomen 32 is bored in the grinding of prior art, normally use artificial mode manual grinding on abrasive machine voluntarily by the operator, such mode of operation need be through training and experience after a while, just can be when grinding that the side cut 31 of drill bit 30 is not worn, therefore real in personnel's training is a big puzzlement and a trouble.

The inventor is because the brill abdomen milling drum of the drill bit of prior art has many problems, to be engaged in the abdomen milling drum Related product production and marketing experience for many years of boring, at the existing existing shortcoming of abdomen milling drum of boring, concentrating on studies to develop and repeatedly improve studies, and obtains a kind of can effectively the improvement eventually and has the brill abdomen milling drum application utility model patent that brill abdomen milling drum lacks now.

Therefore, main purpose of the present utility model provides a kind of simple to operate, bores abdomen grinding bit drills abdomen milling drum easily really.

Summary of the invention

In order to achieve the above object, the utility model proposes a kind of brill abdomen milling drum of drill bit, this brill abdomen milling drum is provided with a board, these board central authorities are provided with an abrasive machine, the board position is in the side in addition of abrasive machine, set firmly a pedestal, the end face of this pedestal is provided with one can be vertical towards the abrasive machine adjustment, the adjustment seat of lateral displacement, its improvement is: the end face of this adjustment seat is provided with a wedge mount, and this wedge mount is higher towards a side of abrasive machine, and side forms lower inclination relatively in addition, this wedge mount differs from the side in addition of abrasive machine again, but then form the back edge that supports of backstop wedge end face article, then set firmly the side follow block on the lateral margin of wedge mount and come the backstop article, and the end face of wedge mount can be placed anchor clamps storing, these anchor clamps are towards a side of abrasive machine, clamping one drill bit, and the both side edges of these anchor clamps distinctly abut against in the back and locate on edge and side follow block.

Advantageously, the end face cunning of this pedestal establishes one can be towards vertical adjustment seat of abrasive machine direction displacement, and at this vertical end face of adjusting seat, slidingly again establish horizontal adjustments that is parallel to the displacement of abrasive machine grinding direction, and be provided with driving mechanism vertically adjusting seat and laterally adjust on the seat, and on this driving mechanism the adjustment button is arranged.

Based on above-mentioned content, the utility model is higher towards a side of abrasive machine by wedge mount, and relatively in addition side forms lower inclination, makes the anchor clamps on the wedge mount can be greater than the angle of inclination of the cutting lip clearance angle of drill bit, is positioned at a design of adjusting seat; With the brill abdomen rear side of drill bit, grinding forms the grinding face of about 20 degree back rake angles, therefore the utlity model has the advantage that convenient quick wear down is bored abdomen.

Description of drawings

For can be further more detail knowledge feature of the present utility model and other purpose, existing attachedly describe in detail as the back with icon:

Fig. 1 is the overall appearance schematic diagram of the utility model preferred embodiment.

Fig. 2 is the perspective exploded view of the utility model preferred embodiment.

Fig. 3 is the user mode schematic diagram of the utility model preferred embodiment.

Fig. 4 is the angle adjustment schematic diagram of the utility model preferred embodiment wedge mount.

Fig. 5 is by the bit face schematic diagram after the utility model grinding.

Fig. 6 is by the drill bit side schematic view after the utility model grinding.

Fig. 7 is the end view of the drill bit of prior art.

Fig. 8 is the end view after the drill bit wear down of prior art is bored abdomen.

The specific embodiment

At first please cooperate referring to Fig. 1, shown in Fig. 2 and Fig. 3, the brill abdomen milling drum of the utility model drill bit wherein, be provided with a board 10 (as shown in Figure 3), the central authorities of this board 10 are provided with a cutting face and are vertical abrasive machine 11 (as shown in Figure 3) with board 10, board 10 is positioned at the side in addition of abrasive machine 11 again, set firmly a pedestal 12, the end face of this pedestal 12, cunning establishes one can be towards vertical adjustment seat 13 of abrasive machine 11 displacements, should vertically adjust the end face of seat 13, slidingly again establish horizontal adjustments 14 that can be parallel to abrasive machine 11 grinding position displacements, should vertically adjust seat 13 and laterally adjust seat 14, driven feeding (as shown in Figure 2) by a driving mechanism 15, this driving mechanism 15 can be adjusted button 150 by one and be adjusted its amount of feeding person;

Again for another example shown in Fig. 2, Fig. 3 and Fig. 4, wherein should laterally adjust the end face of seat 14, be pivoted with a wedge mount 16, this wedge mount 16 can form the commentaries on classics pendulum (shown in the imaginary line of Fig. 4) of different angles towards abrasive machine 11 directions, this wedge mount 16 forms higher towards a side of abrasive machine 11 again, the in addition lower inclination (as shown in Figures 2 and 3) of side, wherein to be 20 degree angle lappings approximately oblique at this inclination angle; This wedge mount 16 differs from the side in addition of abrasive machine 11 again, but then form the back edge 160 that supports of a backstop wedge 16 end face article, and make on the lateral margin of this wedge mount 16, be installed with side follow block 161 and come the backstop article, and the end face of this wedge mount 161 can be put for anchor clamps 20, these anchor clamps 20 are towards a side of abrasive machine 11, but clamping one drill bit 30 (as shown in Figure 3), wherein these anchor clamps 20 differ from the lateral margin in addition of abrasive machine 11, and with respect to the lateral margin of wedge mount 16 side follow blocks 161, back the supporting that can distinctly abut against at wedge mount 16 forms the location on edge 160 and the side follow block 161;

By this, when the utility model is implemented, drill bit 30 can be clamped in the anchor clamps 20, and with on the smooth end face that is seated in wedge mount 16 of anchor clamps 20 (as shown in Figure 3), also make anchor clamps 20 differ from drill bit 30 lateral margin of side in addition this moment, abutting against the back of wedge mount 16 supports on the edge 160, and anchor clamps 20 are towards the lateral margin of wedge mount 16 side follow blocks 161, then also abut against simultaneously in the side of wedge mount 16 and support on the edge 161, this moment, the operator just can suppress anchor clamps 20 on the other hand, another hand rotates vertical adjustment button 150 of adjusting seat 13 and laterally adjusting seat 14 respectively, makes vertical driving mechanism 15 of adjusting seat 13 and laterally adjusting seat 14, can be along with operator's control to abrasive machine 11 displacements;

Because wedge mount 16 of the present utility model forms the inclination (as shown in Figure 3) of about 20 degree, so when abrasive machine 11 grinding drills 30, can bore abdomen 32 rear sides by drill bit 30 and partly begin worn (as shown in Figure 5), and the part (generally being about 12 degree to 15 degree) of drill bit 30 being bored abdomen 32 original cutting lip clearance angles (α), grinding goes out the back rake angle (β) (as shown in Figure 6) that about 20 degree retread, and drill bit 30 of the present utility model is formed as Fig. 5 and shown in Figure 6, with the different grinding face 34 of drill bit 30 cutting lip clearance angles (α); Design by this, not only effectively the brill abdomen 32 of wear down drill bit 30 is partly, more can reach drill bit 30 dead point 33 originally, effectively be ground to short dead point 330 as shown in Figure 5, utilize grinding face 34 designs of 20 back rake angles (β) of spending of drill bit 30, reaching is not influencing under drill bit 30 original interlabial gap angles (α), and effectively wear down is bored abdomen 31 and formed short dead point 330, to reach the purpose that reduces the processing resistance, increases boring precision and stability.

In sum, the utility model is filed an application in accordance with the law, please give approval.

Claims

1, a kind of brill abdomen milling drum of drill bit, this brill abdomen milling drum is provided with a board, and these board central authorities are provided with an abrasive machine, the board position is in the side in addition of abrasive machine, set firmly a pedestal, the end face of this pedestal be provided with one can towards the abrasive machine adjustment vertically, the adjustment seat of lateral displacement, it is characterized in that:

The end face of this adjustment seat is provided with a wedge mount, this wedge mount is higher towards a side of abrasive machine, side forms lower inclination relatively in addition, and this wedge mount differs from the side in addition of abrasive machine again, but forms the back edge that supports of backstop wedge end face article, then set firmly the side follow block on the lateral margin of wedge mount and come the backstop article, and the end face of wedge mount is put anchor clamps, and these anchor clamps are towards a side of abrasive machine, clamping one drill bit, the both side edges of these anchor clamps distinctly abuts against back edge and the side follow block formation location supported at wedge.

2, the brill abdomen milling drum of drill bit as claimed in claim 1, it is characterized in that: the end face cunning of this pedestal establishes one can be towards vertical adjustment seat of abrasive machine direction displacement, and at this vertical end face of adjusting seat, slidingly again establish horizontal adjustments that is parallel to the displacement of abrasive machine grinding direction, and be provided with driving mechanism vertically adjusting seat and laterally adjust on the seat, and on this driving mechanism the adjustment button is arranged.