CN213530897U - Hole digger convenient to chip removal - Google Patents
Hole digger convenient to chip removal Download PDFInfo
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- CN213530897U CN213530897U CN202022536750.4U CN202022536750U CN213530897U CN 213530897 U CN213530897 U CN 213530897U CN 202022536750 U CN202022536750 U CN 202022536750U CN 213530897 U CN213530897 U CN 213530897U
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Abstract
The utility model discloses a to traditional hole digger can destroy the pore structure at the trompil in-process and produce extra sweeps, lid formula hole digger need use pagoda spring to release the waste material and use trouble and designed a hole digger of the chip removal of being convenient for, include: the R handle type connecting piece is divided into a connecting handle, a triangular R handle and a connecting R handle, and the connecting handle, the triangular R handle and the connecting R handle are sequentially connected with the same central point; the hole opener is in a cover shape, the center of the top of the hole opener is provided with an R-handle mounting hole, and the bottom of the hole opener is provided with sawteeth in the same direction around the circumference; the hole withdrawing device is used for withdrawing the hole opener from the hole opening part, and the cross section of the hole withdrawing device is in a cylindrical shape and is matched with the shape of the R mounting hole; the cross section of the triangular R handle is a round-corner equilateral triangle, and the cross section of the connecting R handle is a round-corner equilateral triangle which is shorter than the cross section of the triangular R handle and has longer length and parallel bevel edges; the bottom surface of the connecting R handle is provided with a positioning drill mounting hole.
Description
Technical Field
The utility model relates to a hole digger field, concretely relates to hole digger convenient to chip removal.
Background
The hole digger is also called as a hole digging saw or a hole saw, which refers to a saw cutting type special circular saw for processing circular holes in modern industry or engineering, and has the advantages of simple and flexible operation, convenient carrying, safety and wide application. The hole opener (cutter) is mounted on a common electric drill, and can conveniently cut round holes, square holes, triangular holes, straight lines and curved lines on any curved surfaces such as planes and spherical surfaces of various plates such as copper, iron, stainless steel, organic glass and the like.
Chinese patent publication No. CN105184888A, published 2015, 12.23.the name of the invention is a hole digger convenient for chip removal, which discloses a hole digger convenient for chip removal, and relates to the technical field of auger bits, comprising a rod body, wherein one end of the rod body is connected with a cutter body, and one end of the rod body, which is far away from the cutter body, is provided with a fixing part; the cutting tool comprises a cutting tool body and is characterized in that a chip removal structure is arranged on the rod body, the chip removal structure comprises an external thread which is arranged on the outer circumferential wall of the rod body and is close to one end of the cutting tool body, a threaded sleeve is further sleeved on the rod body, the threaded sleeve is in threaded connection with the external thread, a push plate is arranged on one end, right opposite to the cutting tool body, of the threaded sleeve, and the push plate is matched with the shape and size of the right side face of the; the utility model has the advantages of convenient use, high chip removal efficiency, good effect and the like.
But the defects of the drilling machine are that the traditional design of oblique cutting is adopted, the structure which is not needed to be damaged in the hole is additionally damaged to generate scraps when the hole is opened, and more scraps are easy to generate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a to traditional hole digger can destroy the pore structure at the trompil in-process and produce extra sweeps, lid formula hole digger need use pagoda spring to release the waste material and use trouble and designed a hole digger of the chip removal of being convenient for.
Hole digger convenient to chip removal includes:
the R handle type connecting piece is divided into a connecting handle, a triangular R handle and a connecting R handle, and the connecting handle, the triangular R handle and the connecting R handle are sequentially connected with the same central point;
the hole opener is in a cover shape, the center of the top of the hole opener is provided with an R-handle mounting hole, and the bottom of the hole opener is provided with sawteeth in the same direction around the circumference;
the hole withdrawing device is used for withdrawing the hole opener from the hole opening part, and the cross section of the hole withdrawing device is in a cylindrical shape and is matched with the shape of the R mounting hole;
the cross section of the triangular R handle is a round-angle equilateral triangle, the cross section of the connecting R handle is a round-angle equilateral triangle, the side length of the cross section of the connecting R handle is smaller than that of the cross section of the triangular R handle, and the bevel edge of the cross section of the connecting R handle is parallel to the bevel edge of the cross section of the triangular R handle;
the bottom surface of the connecting R handle is provided with a positioning drill mounting hole.
When the positioning drill is used, the positioning drill is arranged at the bottom of the R-handle type connecting piece, and a positioning hole is punched in the perforated plate at first. Then withdraw from R and install the hole digger to R on the type connecting piece to the type connecting piece, because connect R and the mounting hole phase-match, the hole digger can not skid at the during operation to be different from the articulated problem that probably produces the screw thread wearing and tearing of screw thread, the utility model discloses a R is type connecting piece and hole digger joint, can not produce the multiple back screw thread wearing and tearing problem of using.
After normal tapping, the tapper is clamped into the tapped hole, the hole returning device is inserted into the R-handle mounting hole, the palm is used for abutting against the top surface of the hole returning device, the finger is clamped on the top cover of the tapper to draw out the tapper, and meanwhile, the cut waste chips and the waste plates inside the tapper are withdrawn from the tapper.
Preferably, the top cover of the hole digger is provided with a circle of bulges, and the bulges are in right-angle transition with the vertical surface. The top cover of the hole digger can be conveniently buckled by fingers, and the hole digger can be conveniently pulled out.
Preferably, the length of the connecting R handle of the R handle type connecting piece is smaller than the width of the bulge, and the bottom surface of the connecting R handle is in fillet transition with the vertical surface;
the diameter of the positioning drill mounting hole is smaller than 1/2 connecting R, so that the section is lengthened.
Preferably, the height of the vertical surface of the hole opener is the same as the thickness of the top cover, and the vertical surface and the top surface are integrally formed.
Preferably, the saw teeth of the hole cutter have the height of 1/2 hole cutter vertical surface.
The thickening top cap is favorable to connecting stably, avoids the trompil to beat the askew condition, 1/2 high sawtooth is favorable to keeping high-speed trompil stable simultaneously with the sweeps discharge.
The beneficial effects of the utility model reside in that: the scraps in the cover can be collected to be discharged at one time after finishing, and the discharging process is convenient; the saw teeth are beneficial to directly discharging the waste scraps out of the cover-shaped structure during cutting, so that the cutting efficiency is improved; the split design is favorable for storage and tool withdrawal.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the structure of the R handle of the present invention;
FIG. 3 is a cross-sectional view of the R-bar connection of the present invention;
in the figure: 1. R handle type connecting piece, 2, hole digger, 3, location drill bit, 4, connection R handle.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2 and 3, the chip removal facilitating hole cutter comprises:
the R handle type connecting piece 1 is divided into a connecting handle, a triangular R handle and a connecting R handle 3, and the connecting handle, the triangular R handle and the connecting R handle 3 are sequentially connected with a central point;
the hole digger 2 is in a cover shape, the center of the top of the hole digger is provided with an R mounting hole, and the bottom of the hole digger is provided with sawteeth in the same direction around the circumference;
the hole withdrawing device is used for withdrawing the hole opener 2 from the hole opening part, and the cross section of the hole opener is in a cylindrical shape and is matched with the shape of the R mounting hole;
the cross section of the triangular R handle is a round-angle equilateral triangle, the cross section of the connecting R handle is a round-angle equilateral triangle, the side length of the cross section of the connecting R handle is smaller than that of the cross section of the triangular R handle, and the bevel edge of the cross section of the connecting R handle is parallel to the bevel edge of the cross section of the triangular R handle;
the bottom surface of the connecting R handle 3 is provided with a positioning drill mounting hole.
When the positioning drill bit is used, the positioning drill bit 3 is arranged at the bottom of the R-handle type connecting piece 1, and a positioning hole is punched in the perforated plate firstly. Then withdraw from R and install type connecting piece 1 on R is type connecting piece 1 to hole digger 2, because connect R3 and R the mounting hole phase-match, hole digger 2 can not skid at the during operation to be different from the articulated problem that probably produces the screw thread wearing and tearing of screw thread, the utility model discloses a R is type connecting piece 1 and hole digger 2 joint, can not produce the multiple back screw thread wearing and tearing problem of using.
After normal tapping, the tapper 2 is clamped into the tapped hole, the hole returning device is inserted into the R-handle mounting hole, the palm is used for abutting against the top surface of the hole returning device, the finger is clamped on the top cover of the tapper 2 to draw out the tapper 2, and meanwhile, the internal cut scraps and waste plates are withdrawn from the tapper 2.
The top cover of the hole digger 2 is provided with a circle of bulges, and the bulges are in right-angle transition with the vertical surface. The top cover of the hole digger 2 can be conveniently buckled by fingers, and the hole digger 2 can be conveniently pulled out.
The length of the R handle 3 of the R handle type connecting piece 1 is smaller than the width of the bulge, and the bottom surface of the R handle 3 is in fillet transition with the vertical surface;
the diameter of the positioning drill mounting hole is smaller than 1/2 and the section of the positioning drill mounting hole 3 is lengthened by connecting R.
The height of the vertical surface of the hole digger 2 is the same as the thickness of the top cover, and the vertical surface and the top surface are integrally formed.
The height of the saw teeth of the hole cutter 2 is 1/2 of the height of the vertical surface of the hole cutter 2.
The thickening top cap is favorable to connecting stably, avoids the trompil to beat the askew condition, 1/2 high sawtooth is favorable to keeping high-speed trompil stable simultaneously with the sweeps discharge.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. Hole digger convenient to chip removal which characterized in that includes:
the R handle type connecting piece is divided into a connecting handle, a triangular R handle and a connecting R handle, and the connecting handle, the triangular R handle and the connecting R handle are sequentially connected with the same central point;
the hole opener is in a cover shape, the center of the top of the hole opener is provided with an R-handle mounting hole, and the bottom of the hole opener is provided with sawteeth in the same direction around the circumference;
the hole withdrawing device is used for withdrawing the hole opener from the hole opening part, and the cross section of the hole withdrawing device is in a cylindrical shape and is matched with the shape of the R mounting hole;
the cross section of the triangular R handle is a round-angle equilateral triangle, the cross section of the connecting R handle is a round-angle equilateral triangle, the side length of the cross section of the connecting R handle is smaller than that of the cross section of the triangular R handle, and the bevel edge of the cross section of the connecting R handle is parallel to the bevel edge of the cross section of the triangular R handle;
the bottom surface of the connecting R handle is provided with a positioning drill mounting hole.
2. The chip evacuation facilitating hole opener of claim 1, wherein the top cover of the hole opener has a ring of protrusions which extend at right angles to the vertical plane.
3. The hole cutter for facilitating chip removal according to claim 2, wherein the length of the connecting R handle of the R handle type connecting piece is smaller than the width of the bulge, and the bottom surface of the connecting R handle is in fillet transition with the vertical surface;
the diameter of the positioning drill mounting hole is smaller than 1/2 connecting R, so that the section is lengthened.
4. The chip removal facilitating tap changer of claim 2 or 3, wherein the height of the vertical surface of the tap changer is the same as the thickness of the top cover, and the vertical surface and the top surface are integrally formed.
5. The chip evacuation facilitating hole opener according to claim 4, wherein the saw teeth of the hole opener have a height of 1/2 hole opener vertical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022536750.4U CN213530897U (en) | 2020-11-05 | 2020-11-05 | Hole digger convenient to chip removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022536750.4U CN213530897U (en) | 2020-11-05 | 2020-11-05 | Hole digger convenient to chip removal |
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| Publication Number | Publication Date |
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| CN213530897U true CN213530897U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022536750.4U Active CN213530897U (en) | 2020-11-05 | 2020-11-05 | Hole digger convenient to chip removal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029532A (en) * | 2021-12-13 | 2022-02-11 | 株洲钻石切削刀具股份有限公司 | Modular drilling machining tool |
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2020
- 2020-11-05 CN CN202022536750.4U patent/CN213530897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029532A (en) * | 2021-12-13 | 2022-02-11 | 株洲钻石切削刀具股份有限公司 | Modular drilling machining tool |
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