CN215144997U

CN215144997U - Hard alloy combined stepped drill

Info

Publication number: CN215144997U
Application number: CN202023179662.XU
Authority: CN
Inventors: 赵卫军
Original assignee: Zhenjiang Yongyi Tools Co ltd
Current assignee: Zhenjiang Yongyi Tools Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-14
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a ladder bores technical field, and discloses a carbide combination formula ladder bores, including interior barrel, the lower fixed surface of interior barrel is connected with bores the body, bore the lower fixed surface of the body and be connected with the drill bit, the inside of boring the body is provided with the dust absorption pipe, the equal fixed intercommunication in the left and right sides of dust absorption pipe has the dust guide pipe, the dust guide pipe is kept away from one side of dust absorption pipe and is bored the fixed surface intercommunication of the body. The utility model discloses be provided with and lead dirt pipe, the dust absorption pipe, the collecting box, the flabellum, the outlet duct, the filter screen, dust exhaust mouth and case lid, can make the brill body rotate when adding man-hour to spare part, can produce dust and tiny granule this moment, bore the rotation that the body rotated the flabellum in the drive collecting box, the flabellum rotates and drives tiny particulate matter and gets into to the collecting box in from leading dirt pipe and dust absorption pipe, filter the particulate matter through the filter screen, and then make the particulate matter fall in the collecting box, thereby reach the effect that reduces the cutting pollution.

Description

Hard alloy combined stepped drill

Technical Field

The utility model relates to a ladder bores technical field, concretely relates to carbide combination formula ladder bores.

Background

The step drill is also called as a step drill or a pagoda drill and is mainly used for drilling and processing thin steel plates within 3mm, one drill bit can replace a plurality of drill bits to be used, holes with different diameters can be processed according to requirements, large holes can be processed at one time, and the drill bits do not need to be replaced, positioning holes do not need to be drilled, and the like.

The existing step drill is exposed in the air when in use, and can generate cutting chips and dust in the use process, thereby easily causing harm to personnel and pollution to the air.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the prior ladder drill is exposed in the air when in use, can generate cutting chips and dust during the use, is easy to cause injury to personnel and pollution to the air, and provides the hard alloy combined ladder drill.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a carbide combination formula ladder bores, includes interior barrel, the lower fixed surface of interior barrel is connected with the brill body, the lower fixed surface of the brill body is connected with the drill bit, the inside of the brill body is provided with the dust absorption pipe, the left and right sides of dust absorption pipe all is fixed the intercommunication has the dust pipe, the dust pipe is kept away from one side of dust absorption pipe and is bored the fixed surface intercommunication of the body to the dust pipe, the inner wall fixedly connected with collecting box of interior barrel, the upper surface of dust absorption pipe passes the lower surface of collecting box and extends to the inside of collecting box, the left and right sides of dust absorption pipe just is located the inside fixedly connected with flabellum of collecting box, the left and right sides of collecting box upper surface all is fixed the intercommunication has the outlet duct, the top of collecting box inner wall just is located the below fixedly connected with filter screen of outlet duct.

Preferably, first through-hole has all been seted up to the left and right sides of interior barrel, the inner wall sliding connection of first through-hole has the fixture block, two the relative one side fixedly connected with limiting plate of fixture block, two the equal fixedly connected with spring in the relative one side of limiting plate, the spring is located the below of collecting box, the outer barrel has been cup jointed on the surface of interior barrel, the second through-hole has been seted up to the left and right sides of outer barrel, the surface of fixture block and the inner wall contact of second through-hole.

Preferably, the upper surface of the collection box is provided with a dust exhaust port, and the inner wall of the collection box is in threaded connection with a box cover.

Preferably, the surface of the drill body is provided with cutting parts with different diameters, and the front surface of the drill body is provided with a chip removal groove.

Preferably, the diameter of the cutting portion is gradually increased from an end near the drill to an end near the inner cylinder.

Preferably, the center of the filter screen and the center of the air outlet pipe are on the same vertical line, and the cross section of the filter screen is larger than that of the air outlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a be provided with and lead dirt pipe, the dust absorption pipe, the collecting box, the flabellum, the outlet duct, the filter screen, dust exhaust mouth and case lid, can make the brill body rotate when adding man-hour to spare part, can produce dust and tiny granule this moment, bore the rotation that the body rotated the interior flabellum of drive collecting box, the flabellum rotates and drives tiny particulate matter and gets into to the collecting box in from leading dirt pipe and dust absorption pipe, filter the particulate matter through the filter screen, and then make the particulate matter fall in the collecting box, thereby reach the effect that reduces cutting pollution.

(2) The utility model discloses a be provided with interior barrel, first through-hole, fixture block, limiting plate, spring, outer barrel and second through-hole, the fixture block about inwards pressing moves, and the fixture block extrudees the spring when the inward movement, and when the fixture block inward movement and when the separation of second through-hole, the rotatory drill body makes fixture block and second through-hole take place the dislocation, then barrel in the downward pulling, and then makes interior barrel separate with outer barrel to reach the effect that the convenience was changed the drill bit.

Drawings

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

FIG. 2 is an enlarged view of structure A of the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of the present invention;

fig. 4 is a front view of the structure of the present invention.

In the figure: 1. an inner cylinder; 2. a drill body; 3. a drill bit; 4. a dust collection pipe; 5. a dust guide pipe; 6. a collection box; 7. a fan blade; 8. an air outlet pipe; 9. a filter screen; 10. a first through hole; 11. a clamping block; 12. a limiting plate; 13. a spring; 14. an outer cylinder; 15. a second through hole; 16. a dust exhaust port; 17. a box cover; 18. a cutting portion; 19. a chip groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a hard alloy combined type stepped drill comprises an inner cylinder 1, a drill body 2 fixedly connected to the lower surface of the inner cylinder 1, a drill bit 3 fixedly connected to the lower surface of the drill body 2, a dust suction pipe 4 disposed inside the drill body 2, dust guide pipes 5 fixedly connected to the left and right sides of the dust suction pipe 4, a dust guide pipe 5 fixedly connected to the surface of the drill body 2 and the side of the dust guide pipe 5 remote from the dust suction pipe 4, a collection box 6 fixedly connected to the inner wall of the inner cylinder 1, a dust suction pipe 4 having an upper surface penetrating through the lower surface of the collection box 6 and extending into the collection box 6, an upper end surface of the dust suction pipe 4 higher than the lower bottom surface of the collection box 6 to prevent excessive dust from flowing into the dust suction pipe 4, fan blades 7 fixedly connected to the left and right sides of the dust suction pipe 4 and located inside the collection box 6, air outlet pipes 8 fixedly connected to the left and right sides of the upper surface of the collection box 6, a filter screen 9 fixedly connected to the upper side of the inner wall of the collection box 6 and located below the air outlet pipes 8, the center of the filter screen 9 and the center of the air outlet pipe 8 are on the same vertical line, the cross section of the filter screen 9 is larger than that of the air outlet pipe 8, the left side and the right side of the inner cylinder 1 are both provided with first through holes 10, the inner wall of the first through holes 10 is connected with clamping blocks 11 in a sliding manner, one side opposite to the two clamping blocks 11 is fixedly connected with limiting plates 12, one side opposite to the two limiting plates 12 is fixedly connected with springs 13, the springs 13 are positioned below the collecting box 6, the surface of the inner cylinder 1 is sleeved with an outer cylinder 14, the left side and the right side of the outer cylinder 14 are provided with second through holes 15, the surface of the clamping blocks 11 is contacted with the inner wall of the second through holes 15, the upper surface of the collecting box 6 is provided with a dust discharge port 16, the upper surface of the collecting box 6 is hinged with a box cover 17 through a hinge, when the dust in the collecting box 6 is more, the inside of the collecting box 6 can be conveniently cleaned by opening the box cover 17, the surface of the drill body 2 is provided with cutting parts 18 with different diameters, the diameter of cutting portion 18 is from the one end that is close to drill bit 3 to the one end that is close to interior barrel 1 crescent, and cutting portion 18 through different diameters can obtain the round hole of different diameters, and chip groove 19 has been seted up on the front of boring body 2, and chip groove 19 can make things convenient for the discharge of sweeps, avoids the too much cutting effect that influences of sweeps.

In the utility model, when a user uses the device, when the product needs to be cut, the machine can drive the inner cylinder body 1 to rotate, when the drill bit 3 and the drill body 2 are contacted with a workpiece, dust and fine particles can be generated, because the inner cylinder body 1 rotates to drive the fan blade 7 to rotate, wind power can be generated when the fan blade 7 rotates, the wind power can suck the dust on the surface into the collecting box 6 through the dust guide pipe 5 and the dust suction pipe 4, then the dust is filtered through the filter screen 9, the dust and the particles fall into the left side and the right side of the dust suction pipe 4, when the drill bit 3 needs to be replaced, the rotation of the inner cylinder body 1 is stopped, then the clamping blocks 11 on the left side and the right side are moved inwards, the clamping blocks 11 are moved to enable the limiting plate 12 to move towards the middle and extrude the spring 13, the clamping blocks 11 are continuously moved, when the clamping blocks 11 are separated from the inner wall of the second through hole 15 slightly, the inner cylinder body 1 is rotated to enable the clamping blocks 11 to form dislocation with the second through hole 15, then the drill body 2 is moved downwards, the inner cylinder 1 and the outer cylinder 14 can be separated, the drill bit 3 can be conveniently replaced, and dust collected in the collecting box 6 can be treated by opening the box cover 17.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A hard alloy combined type step drill comprises an inner cylinder body (1) and is characterized in that a drill body (2) is fixedly connected to the lower surface of the inner cylinder body (1), a drill bit (3) is fixedly connected to the lower surface of the drill body (2), a dust collection pipe (4) is arranged inside the drill body (2), dust guide pipes (5) are fixedly communicated with the left side and the right side of the dust collection pipe (4), one side, far away from the dust collection pipe (4), of each dust guide pipe (5) is fixedly communicated with the surface of the drill body (2), a collection box (6) is fixedly connected to the inner wall of the inner cylinder body (1), the upper surface of each dust collection pipe (4) penetrates through the lower surface of the collection box (6) and extends into the collection box (6), fan blades (7) are fixedly connected to the left side and the right side of each dust collection pipe (4) and located inside the collection box (6), air outlet pipes (8) are fixedly communicated with the left side and the right side of the upper surface of the collection box (6), and a filter screen (9) is fixedly connected above the inner wall of the collecting box (6) and below the air outlet pipe (8).

2. The hard alloy combined type step drill according to claim 1, wherein first through holes (10) are formed in the left side and the right side of the inner cylinder (1), a clamping block (11) is slidably connected to the inner wall of each first through hole (10), two limiting plates (12) are fixedly connected to the opposite sides of the two clamping blocks (11), two springs (13) are fixedly connected to the opposite sides of the two limiting plates (12), the springs (13) are located below the collecting box (6), an outer cylinder (14) is sleeved on the surface of the inner cylinder (1), second through holes (15) are formed in the left side and the right side of the outer cylinder (14), and the surfaces of the clamping blocks (11) are in contact with the inner wall of the second through holes (15).

3. The hard alloy combined stepped drill according to claim 1, wherein a dust exhaust port (16) is formed in the upper surface of the collection box (6), and a box cover (17) is connected to the inner wall of the collection box (6) in a threaded manner.

4. The combined type stepped drill made of hard alloy according to claim 1, wherein the surface of the drill body (2) is provided with cutting portions (18) with different diameters, and the front surface of the drill body (2) is provided with chip grooves (19).

5. A combined stepped drill of cemented carbide according to claim 4, characterized in that the diameter of the cutting portion (18) increases from the end near the drill bit (3) to the end near the inner barrel (1).

6. The combined type ladder drill made of hard alloy according to claim 1, wherein the center of the filter screen (9) and the center of the outlet pipe (8) are on the same vertical line, and the cross section of the filter screen (9) is larger than that of the outlet pipe (8).