CN210412858U - Device for eliminating burrs of crossed hole - Google Patents

Device for eliminating burrs of crossed hole Download PDF

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Publication number
CN210412858U
CN210412858U CN201920996218.5U CN201920996218U CN210412858U CN 210412858 U CN210412858 U CN 210412858U CN 201920996218 U CN201920996218 U CN 201920996218U CN 210412858 U CN210412858 U CN 210412858U
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CN
China
Prior art keywords
drill bit
conical surface
drill
burr
cross
Prior art date
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Active
Application number
CN201920996218.5U
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Chinese (zh)
Inventor
黄建军
韩素霞
邹亮
赵浩
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Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd
Original Assignee
Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd
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Application filed by Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd filed Critical Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd
Priority to CN201920996218.5U priority Critical patent/CN210412858U/en
Application granted granted Critical
Publication of CN210412858U publication Critical patent/CN210412858U/en
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Abstract

The utility model relates to a can eliminate the crossing hole burr device of elimination cross of the burr that the crossing hole of cross produced in the machining process, including the drill bit, the electric hand drill of installation drill bit, grind out at the drill point 15 to 20 millimeters department apart from the drill bit and have the anti-90 degree conical surface, grind out the conical surface that has 10 degrees with the drill bit own angle in the drill bit part below the anti-conical surface, and do not have the cutting edge in this 10 degree conical surface scope, through long-term use and cost comparison, be suitable for eliminating the burr clearance work that the crossing hole position of phi 6 to phi 80 cross produced, eliminate the crossing hole burr of cross in the machining process, the production arrangement is convenient, shortens production cycle greatly; the special cutter processing mode in the original process is replaced, the cutter is convenient to manufacture, and the production and manufacturing cost is greatly saved; the method is not limited by a working site, is convenient and quick to operate, and the inner orifice of the processed hole is smooth and transitional, has no flash or burr, and meets the requirements after being detected by inspectors.

Description

Device for eliminating burrs of crossed hole
Technical Field
The utility model belongs to the machining field, concretely relates to can eliminate crossing hole burr device of elimination cross of burr that the crossing hole of cross produced in the machining process.
Background
In the machining process of mechanical production, the machining condition of crossed holes is often met, machining burrs cannot be avoided at the crossed positions of the holes after machining, the burrs are generally cleaned by matching a spherical cutter and a boring machine, the method is very practical for the crossed holes with large aperture, the burrs generated at the crossed holes with small aperture cannot be cleaned, if the burrs at the crossed holes are not eliminated, the subsequent assembly quality is influenced, and the inner surface is possibly blocked or abraded.
Disclosure of Invention
An object of the utility model is to overcome the not enough of existence among the prior art and provide a crossing hole burr device of elimination cross that is used for cleaing away the crossing hole burr of small dimension phi 6 to phi 80 cross specially.
The purpose of the utility model is realized like this: the utility model provides an eliminate crossing hole burr device of cross, includes the electric hand drill of drill bit, installation drill bit, its characterized in that: the drill bit is ground with a reverse 90-degree conical surface at a distance of 15 to 20 mm from the drill tip of the drill bit, a 14-degree back angle is designed on the reverse 90-degree conical surface, a conical surface with an angle of 10 degrees with the drill bit is ground on the part of the drill bit below the reverse conical surface, and no cutting edge exists in the range of the 10-degree conical surface.
The reverse 90-degree conical surface can be used for grinding the rear knife face of the knife edge on the reverse 90-degree conical surface again after being worn for a long time, so that the knife edge is sharp.
The drill bit handle is a clamping part of the device for eliminating the burrs of the crossed holes, and the clamping part of the drill bit handle is a clamping part of the device for eliminating the burrs of the crossed holes and is arranged on the electric hand drill.
The clamping end of the drill shank is machined with a straight table of 15 to 20 mm length.
The utility model discloses have following positive effect: compared with the cost after long-term use, the special tool is suitable for eliminating burr cleaning work generated at the crossed hole position from phi 6 to phi 80, and has the following advantages: 1. the burrs of crossed holes in the machining process are eliminated, the production arrangement is convenient, and the production period is greatly shortened; 2. the special cutter processing mode in the original process is replaced, the cutter is convenient to manufacture, and the production and manufacturing cost is greatly saved; 3. the method is not limited by a working site, is convenient and quick to operate, and the inner orifice of the processed hole is smooth and transitional, has no flash or burr, and meets the requirements after being detected by inspectors.
Drawings
FIG. 1 is a schematic diagram of the operation of deburring a cross-shaped intersection hole.
The labels in the figures are: 1. an electric hand drill; 2. a special cutter (drill) formed by reforming a waste drill; 3. and (5) a workpiece.
Fig. 2 is a schematic diagram of a special tool for modifying a waste drill bit.
Fig. 3 is a schematic view of the back 90 degree bevel cutting edge clearance angle of the special cutter.
Detailed Description
As shown in figures 1, 2 and 3, the device for eliminating the burrs of the crossed hole comprises a drill bit 2 and an electric hand drill 1 for mounting the drill bit, wherein a conical surface with an angle of inverse 90 degrees is ground at a position 15-20 mm away from the drill tip of the drill bit 2, and in order to avoid the large contact surface between the conical surface with the hole with the angle of inverse 90 degrees and the large friction force, the drill bit is used for the reference of a drill bit sharpening method, and a back angle of 14 degrees is ground. The portion of the drill below the counter-taper has been ground with a taper at an angle of 10 degrees to the drill itself and no cutting edge within the 10 degree taper.
The reverse 90-degree conical surface can be used for grinding the rear knife face of the knife edge on the reverse 90-degree conical surface again after being worn for a long time, so that the knife edge is sharp.
The drill bit handle is a clamping part of the device for eliminating the burrs of the crossed holes. The clamping end of the drill shank is machined with a straight table of 15 to 20 mm length.
The handle of the drill bit is arranged on the electric hand drill for eliminating the clamping part of the device for eliminating the burrs of the crossed holes.
The device consists of the following two parts: (1) a special tool for cleaning burrs, which is reformed by a waste drill bit, (2) an electric hand drill.
The operation process is as follows: 1. selecting a proper grinding and cutting edge part of the waste drill bit according to the aperture size: the distance from the drill point 15 to 20 is ground into a reverse 90-degree conical surface, and a 14-degree relief angle is ground on a cutting edge on the reverse 90-degree conical surface. 2. Grinding a transition part: the portion below the counter-taper is ground to a taper angle of 10 degrees to the drill itself and eliminates all cutting edges within the 10 degree taper. 3. A special tool modified by a waste drill bit is clamped on an electric hand drill. 3. The burrs of the crossed holes are cleaned by a reverse 90-degree conical surface through manual operation.
Step 1, selecting proper waste drill bits according to the pore size to process and manufacture special cutters. 1. Grinding the cutting edge portion: and grinding a reverse 90-degree conical surface from the drill tip 15 to 20, and grinding a back angle on the cutting edge on the reverse 90-degree conical surface. 2. Grinding a transition part: the portion below the reverse 90 degree taper is ground to a taper angle of 10 degrees from the drill itself and eliminates all cutting edges in the 10 degree taper range.
Step 2, clamping a special cutter ground by waste drill bits on an electric hand drill;
and 3, manually operating by using the hand-held electric hand drill to finish the cleaning of the burrs of the crossed holes.

Claims (5)

1. The utility model provides an eliminate crossing hole burr device of cross, includes the electric hand drill of drill bit, installation drill bit, its characterized in that: the drill bit is ground with a reverse 90-degree conical surface at a distance of 15 to 20 mm from the drill tip of the drill bit, a 14-degree back angle is designed on the reverse 90-degree conical surface, a conical surface with an angle of 10 degrees with the drill bit is ground on the part of the drill bit below the reverse conical surface, and no cutting edge exists in the range of the 10-degree conical surface.
2. The apparatus for deburring a cross-shaped intersection hole of claim 1, wherein: the reverse 90-degree conical surface can be used for reconditioning the knife edge rear knife face on the reverse 90-degree conical surface after long-term use and abrasion.
3. The apparatus for deburring a cross-shaped intersection hole of claim 1, wherein: the drill bit handle is a clamping part of the device for eliminating the burrs of the crossed holes.
4. The device for deburring of crossed holes of claim 3, wherein: the clamping end of the drill shank is machined with a straight table of 15 to 20 mm length.
5. The device for deburring of crossed holes of claim 3, wherein: the handle of the drill bit is arranged on the electric hand drill for eliminating the clamping part of the device for eliminating the burrs of the crossed holes.
CN201920996218.5U 2019-06-28 2019-06-28 Device for eliminating burrs of crossed hole Active CN210412858U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920996218.5U CN210412858U (en) 2019-06-28 2019-06-28 Device for eliminating burrs of crossed hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920996218.5U CN210412858U (en) 2019-06-28 2019-06-28 Device for eliminating burrs of crossed hole

Publications (1)

Publication Number Publication Date
CN210412858U true CN210412858U (en) 2020-04-28

Family

ID=70377796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920996218.5U Active CN210412858U (en) 2019-06-28 2019-06-28 Device for eliminating burrs of crossed hole

Country Status (1)

Country Link
CN (1) CN210412858U (en)

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