CN213350946U

CN213350946U - Steel plate drill bit cutter structure for layered cutting

Info

Publication number: CN213350946U
Application number: CN202022290350.XU
Authority: CN
Inventors: 丁浩
Original assignee: Changzhou Juren Precision Tools Co ltd
Current assignee: Changzhou Juren Precision Tools Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-06-04
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a steel sheet drill bit cutter structure of layering cutting, including the round bar, fixed parcel has the skin on the round bar, is provided with the bar groove on the skin, and the inner wall open position in bar groove is fixed with the arc sword, still is fixed with the embedding on the skin and has the piece of polishing, and the one end of round bar is fixed with the drill bit, is fixed with the cutter on the drill bit, and the other end of round bar is fixed with the installation head. Can form through drill bit cooperation cutter and punch for the first time, the arc sword can carry out the secondary and cut the flattening, and final smooth processing is realized to the sanding block, and the layering punches for the downthehole wall is more smooth.

Description

Steel plate drill bit cutter structure for layered cutting

Technical Field

The utility model belongs to the technical field of the steel sheet drill bit, specifically be a steel sheet drill bit cutter structure of layering cutting.

Background

When the steel plate is assembled into a shell structure, the steel plate needs to be assembled through a bolt matched with a nut, and the inner wall of the assembled hole is a smooth surface and needs to be drilled through drilling work.

The thickness of the steel plate is usually less than 1 cm, and the steel plate can be punched by a common drill, such as a twist drill or a cone drill.

However, after exceeding 1 cm, the common drill bit is used for the steel plate with larger thickness and only has a single drilling mode, which easily causes the inner wall of the hole not to be smooth enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel sheet drill bit cutter structure of layering cutting to solve the steel sheet and punch, the downthehole wall is glossy problem inadequately.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a steel sheet drill bit cutter structure of slicing, includes the round bar, fixed parcel has the skin on the round bar, be provided with the bar groove on the skin, the inner wall open position in bar groove is fixed with the arc sword, it has the piece of polishing still to fix the embedding on the skin, the one end of round bar is fixed with the drill bit, be fixed with the cutter on the drill bit, the other end of round bar is fixed with installation head.

Preferably, the length in bar groove is the same with outer length, and the sectional shape in bar groove is handstand trapezium structure, forms a waste material groove, when punching, can avoid the waste material to influence drilling effect, when the waste material is crowded into the bar inslot, with the waste material throw away in centrifugal mode.

Preferably, the number of sanding block is two, and the symmetric distribution sets up, can polish to hole inner wall when ending to ensure the smooth degree of hole inner wall.

Preferably, the number of the cutters is four, the cutters are uniformly distributed and fixed, the cutting efficiency can be improved by the four cutters, and the punching quality is ensured.

Preferably, the knife face inclination angle of cutter is between 25 to 40 degrees, guarantees to bore into the stability of steel sheet, avoids the angle too big, leads to drilling efficiency to reduce.

Preferably, the arc-shaped cutters are symmetrically distributed along the central axis of the strip-shaped groove, the arc-shaped surfaces are matched with the circumferential positions of the outer layer, and secondary punching and cutting can be performed on the parts with incomplete punching of the drill bit and the cutters, so that layered machining is realized.

Referring to the drawing, the drill and the cutter are made of titanium alloy materials, the round rod, the outer layer and the arc-shaped cutter are all made of stainless steel materials, and the titanium alloy materials are stable in structure, high in strength and enough in durability when frequently contacting with a steel plate.

Compared with the prior art, the beneficial effects of the utility model are that: can form through drill bit cooperation cutter and punch for the first time, the arc sword can carry out the secondary and cut the flattening, and final smooth processing is realized to the sanding block, and the layering punches for the downthehole wall is more smooth.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the outer layer of the present invention;

fig. 3 is a schematic diagram of the distribution of the cutters of the present invention.

In the figure: 1. a round bar; 11. an outer layer; 12. a strip-shaped groove; 13. grinding blocks; 14. a drill bit; 15. a cutter; 16. a mounting head; 17. an arc-shaped knife.

Detailed Description

Referring to fig. 1 and 2, a cutter structure of a steel plate drill bit for layered cutting includes a round bar 1, an outer layer 11 is fixedly wrapped on the round bar 1, a strip-shaped groove 12 is formed on the outer layer 11, an arc-shaped cutter 17 is fixed at an opening position of an inner wall of the strip-shaped groove 12, a grinding block 13 is further fixed and embedded on the outer layer 11, a drill bit 14 is fixed at one end of the round bar 1, a cutter 15 is fixed on the drill bit 14, and an installation head 16 is fixed at the other end of the round bar 1.

Referring to fig. 1, the length of the strip-shaped groove 12 is the same as that of the outer layer 11, and the sectional shape of the strip-shaped groove 12 is an inverted trapezoid structure, so that a waste groove is formed, when punching is performed, the waste can be prevented from affecting the drilling effect, and when the waste is extruded into the strip-shaped groove 12, the waste is thrown away in a centrifugal manner.

Referring to fig. 1, the number of the polishing blocks 13 is two, and the polishing blocks are symmetrically distributed, so that the inner wall of the hole can be polished when the hole is closed, and the smoothness of the inner wall of the hole is ensured.

Referring to fig. 1 and 3, the number of the cutters 15 is four, and the cutters 15 are uniformly distributed and fixed, so that the cutting efficiency can be improved by the four cutters 15, and the punching quality can be ensured.

Referring to fig. 1, the inclination angle of the cutter face of the cutter 15 is 25 to 40 degrees, so that the stability of drilling into the steel plate is ensured, and the reduction of drilling efficiency caused by overlarge angle is avoided.

Referring to fig. 1, the arc-shaped cutters 17 are symmetrically distributed along the central axis of the strip-shaped groove 12, and the arc-shaped positions are matched with the circumferential positions of the outer layer 11, so that the parts with incomplete drilling of the drill bit 14 and the cutter 15 can be subjected to secondary drilling and cutting, and layered processing is realized.

Referring to fig. 1, the drill 14 and the cutter 15 are made of a titanium alloy material, and the round bar 1, the outer layer 11 and the arc-shaped cutter 17 are made of a stainless steel material, and the titanium alloy material has a stable structure, high strength and sufficient durability when frequently contacting a steel plate.

The working principle of the scheme is as follows: when the steel plate needs to be punched, the mounting head 16 is butted with equipment, and the mounting head 16 can be manufactured according to the actual mounting requirements of the equipment.

When boring the steel sheet to exceeding 1 centimetre, drill bit 14 cooperation cutter 15 earlier with the steel sheet contact, punch, then round bar 1 enters into downtheholely, and strip groove 12 plays an effect of getting rid of the material, sees off downthehole powder, and arc sword 17 can carry out the secondary to the position of downthehole small unevenness and cut, forms the layering and punches to cut.

Finally, a final levelling is carried out by means of a sanding block 13 to ensure the smoothness of the inner wall of the hole.

Claims

1. The utility model provides a steel sheet drill bit cutter structure of layer cutting, includes round bar (1), its characterized in that: fixed parcel has outer layer (11) on round bar (1), be provided with bar groove (12) on outer layer (11), the inner wall open position of bar groove (12) is fixed with arc sword (17), it has sanding block (13) still to be fixed to imbed on outer layer (11), the one end of round bar (1) is fixed with drill bit (14), be fixed with cutter (15) on drill bit (14), the other end of round bar (1) is fixed with installation head (16).

2. The layered cutting steel plate drill bit tool structure of claim 1, wherein: the length of the strip-shaped groove (12) is the same as that of the outer layer (11), and the cross section of the strip-shaped groove (12) is in an inverted trapezoidal structure.

3. The layered cutting steel plate drill bit tool structure of claim 1, wherein: the number of the grinding blocks (13) is two, and the grinding blocks are symmetrically distributed.

4. The layered cutting steel plate drill bit tool structure of claim 1, wherein: the number of the cutters (15) is four, and the cutters are uniformly distributed and fixed.

5. The layered cutting steel plate drill bit tool structure of claim 1, wherein: the inclination angle of the cutter face of the cutter (15) is 25-40 degrees.

6. The layered cutting steel plate drill bit tool structure of claim 1, wherein: the arc-shaped cutters (17) are symmetrically distributed on the central axis of the strip-shaped groove (12), and the arc-shaped surface positions are matched with the circumferential position of the outer layer (11).

7. The layered cutting steel plate drill bit tool structure of claim 1, wherein: the drill bit (14) and the cutter (15) are made of titanium alloy materials, and the round rod (1), the outer layer (11) and the arc-shaped cutter (17) are all made of stainless steel materials.