CN112676615A

CN112676615A - Anti-deviation spade drill

Info

Publication number: CN112676615A
Application number: CN202011482223.8A
Authority: CN
Inventors: 罗鑫磊; 沈国飞; 翁晨凯
Original assignee: Zhejiang Kunbo Precision Technology Co ltd
Current assignee: Zhejiang Kunbo Precision Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-04-20

Abstract

The invention discloses an anti-deviation spade drill, which comprises a spade drill cutter rod and a spade drill blade, wherein a chip groove is arranged on the spade drill cutter rod, a central water outlet channel is arranged in the spade drill cutter rod, the spade drill blade comprises a first chip breaking groove and a second chip breaking groove, the central water outlet channel is a Y-shaped channel and comprises a main channel, a first channel leading to the first chip breaking groove and a second channel leading to the second chip breaking groove, and two guide centering blocks are arranged on the spade drill blade. The invention enhances the centering effect by arranging the two symmetrical guide centering blocks, thereby preventing the deviation of the drilling machining center; the central water outlet channel is beneficial to chip removal and cooling, and the service life of the blade is prolonged; the chip removal effect of the shovel drill is enhanced by the chip breaking groove of the blade and the spiral chip removal groove of the cutter rod.

Description

Anti-deviation spade drill

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of shovel drills, in particular to the technical field of anti-deviation shovel drills.

[ background of the invention ]

The hole machining occupies a large proportion in the whole machining process, and chip removal and deviation prevention are key problems when deep holes are drilled. For a long time, the twist drill is widely used as a main tool for hole machining, but due to structural defects, the rigidity of the twist drill is poor, chip removal is poor, the cooling effect is poor, the center positioning error of the drill during grinding of workers can be large, abrasion can be accelerated in machining, the center of a drilled hole cannot be well guaranteed, and the rigidity of an equipment main shaft is also limited to meet the requirement of hole position degree due to machining on a drilling machine, so that the deviation is large.

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides an anti-deviation spade drill which can prevent deviation of a drill machining center when a deep hole is machined, has good rigidity, excellent chip removal performance and cooling effect and prolongs the service life of the spade drill.

In order to achieve the purpose, the invention provides an anti-deviation spade drill, which comprises a spade drill cutter rod and a spade drill blade, wherein a chip groove is arranged on the spade drill cutter rod, a central water outlet channel is arranged in the spade drill cutter rod, the spade drill blade comprises a first chip breaker groove and a second chip breaker groove, the central water outlet channel is a Y-shaped channel and comprises a main channel, a first channel leading to the first chip breaker groove and a second channel leading to the second chip breaker groove, and two guide centering blocks are arranged on the spade drill blade. Preferably, it is mentioned.

Preferably, the two guide centering blocks are arranged on the shovel drill blade in a centrosymmetric manner.

Preferably, the two guide centering blocks are in a cuboid shape, and the sum of the total length of the two guide centering blocks is smaller than the diameter of the shovel drill blade.

Preferably, the chip grooves are spiral.

Preferably, the shovel bores the blade formula structure as an organic whole, the shovel bores the blade and includes tool bit and cutter body, the tool bit is the isosceles triangle structure, be provided with left ladder group and right ladder group on two waists of tool bit respectively, the shape, the quantity and the position of ladder in the left ladder group correspond with the shape, the quantity and the position one-to-one of ladder in the right ladder group respectively.

Preferably, the left step group is composed of three steps, the right step group is also composed of three steps, the cutter head is provided with a plurality of chip separating grooves, the chip separating grooves are respectively arranged on the left step group and the right step group, and the chip separating grooves are positioned on the steps at the bottom and the steps at the middle position.

Preferably, both sides of the cutter body are provided with cutting edges, and both ends of the cutter head are provided with chamfers.

The invention has the beneficial effects that: the invention enhances the centering effect by arranging the two symmetrical guide centering blocks, thereby preventing the deviation of the drilling machining center; the central water outlet channel is beneficial to chip removal and cooling, and the service life of the blade is prolonged; the chip removal effect of the shovel drill is enhanced by the chip breaking groove of the blade and the spiral chip removal groove of the cutter rod.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic view of an anti-deviation spade drill according to the present invention;

FIG. 2 is a schematic diagram of a central water outlet channel structure of an anti-deviation spade drill according to the present invention;

fig. 3 is a schematic structural view of a shovel drill blade of an anti-deviation shovel drill according to the invention.

In the figure: 1-shovel drill cutter bar, 2-shovel drill blade, 3-central water outlet channel, 4-chip groove, 5-guiding centering block, 6-cutter head, 7-cutter body, 21-first chip groove, 22-second chip groove, 23-left step group, 24-right step group, 31-first channel, 32-second channel, 33-main channel, 61-chip groove, 62-chamfer and 71-blade zone.

[ detailed description ] embodiments

Referring to fig. 1, 2 and 3, the deviation-preventing spade drill of the present invention comprises a spade drill cutter bar 1 and a spade drill blade 2, wherein a chip groove 4 is arranged on the spade drill cutter bar 1, a central water outlet channel 3 is arranged inside the spade drill cutter bar 1, the spade drill blade 2 comprises a first chip breaker 21 and a second chip breaker 22, the central water outlet channel 3 is a Y-shaped channel, and comprises a main channel 33, a first channel 31 leading to the first chip breaker 21 and a second channel 32 leading to the second chip breaker 22, two guide centering blocks 5 are arranged on the spade drill blade 2, the two guide centering blocks 5 are arranged on the spade drill blade 2 in a central symmetry manner, the two guide centering blocks 5 are cuboid-shaped, the total length of the two guide centering blocks 5 is smaller than the diameter of the spade drill blade 2, the chip groove 4 is spiral, and the spade drill blade 2 is of an integral structure, the spade drill blade 2 comprises a tool bit 6 and a tool body 7, the tool bit 6 is of an isosceles triangle structure, two waists of the tool bit 6 are respectively provided with a left step group 23 and a right step group 24, the shape, the number and the position of the steps in the left step group 23 correspond to the shape, the number and the position of the steps in the right step group 24 one by one, the left step group 23 is composed of three steps, the right step group 24 is also composed of three steps, the tool bit 6 is provided with a plurality of chip separating grooves 61, the chip separating grooves 61 are respectively arranged on the left step group 23 and the right step group 24, the chip separating grooves 61 are positioned on the steps at the bottom and the steps at the middle position, two sides of the tool body 7 are provided with cutting edge belts 71, and two ends of the tool bit 6 are provided with chamfers 62.

The working process of the invention is as follows:

in the working process of the anti-deviation spade drill, the integrated spade drill blade 2 can be accurately centered, and two symmetrical guide centering blocks 5 additionally arranged on the spade drill blade 2 enhance the centering effect and prevent the deviation of a drill processing center; the central water outlet channel 3 is beneficial to chip removal and cooling, and the service life of the shovel drill is prolonged; the chip removal effect of the shovel drill is enhanced by the chip breaker groove of the shovel drill blade and the spiral chip removal groove 4 of the cutter bar; the stepped groups on the cutter head 6 and the additional chip dividing grooves 61 can better divide chips.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides an anti-migration spade bores which characterized in that: drill cutter arbor (1) and shovel brill blade (2) including the shovel, be equipped with chip groove (4) on the shovel brill cutter arbor (1), shovel brill cutter arbor (1) inside is equipped with central exhalant canal (3), shovel brill blade (2) are including first chip breaker (21) and second chip breaker (22), central exhalant canal (3) are Y font passageway, including main entrance (33), lead to first passageway (31) of first chip breaker (21) and lead to second passageway (32) of second chip breaker (22), be equipped with two direction centering pieces (5) on shovel brill blade (2).

2. The anti-migration spade drill of claim 1, wherein: the two guide centering blocks (5) are arranged on the shovel drill blade (2) in a centrosymmetric manner.

3. The anti-migration spade drill of claim 2, wherein: the two guide centering blocks (5) are cuboid in shape, and the total length of the two guide centering blocks (5) is smaller than the diameter of the shovel drill blade (2).

4. The anti-migration spade drill of claim 1, wherein: the chip groove (4) is spiral.

5. The anti-migration spade drill of claim 1, wherein: the shovel bores blade (2) formula structure as an organic whole, shovel bores blade (2) and includes tool bit (6) and cutter body (7), tool bit (6) are the isosceles triangle structure, be provided with left ladder group (23) and right ladder group (24) on two waists of tool bit (6) respectively, the shape, the quantity and the position one-to-one of ladder in left ladder group (23) respectively with the shape, the quantity and the position of ladder in right ladder group (24).

6. The anti-shifting spade drill according to claim 5, wherein: left side ladder group (23) comprise three ladder, right side ladder group (24) also comprise three ladder, be equipped with a plurality of chip separation groove (61) on tool bit (6), chip separation groove (61) set up respectively on left side ladder group (23) and right side ladder group (24), chip separation groove (61) are located the ladder of bottom and the ladder of intermediate position.

7. The anti-shifting spade drill according to claim 5, wherein: two sides of the cutter body (7) are provided with cutting edges (71), and two ends of the cutter head (6) are provided with chamfers (62).