CN200974136Y - Square auger and square aperture processing device - Google Patents
Square auger and square aperture processing device Download PDFInfo
- Publication number
- CN200974136Y CN200974136Y CN 200620048785 CN200620048785U CN200974136Y CN 200974136 Y CN200974136 Y CN 200974136Y CN 200620048785 CN200620048785 CN 200620048785 CN 200620048785 U CN200620048785 U CN 200620048785U CN 200974136 Y CN200974136 Y CN 200974136Y
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- square hole
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- 238000003754 machining Methods 0.000 claims 3
- 238000005553 drilling Methods 0.000 abstract description 18
- 241001074085 Scophthalmus aquosus Species 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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Abstract
The utility model discloses a square auger for drilling square hole. The square anger has a drill bit in the shape of a triangular prism; the prism surface is three arched surfaces crossed with each other; the three arched surfaces have equal radii and arc length; the end surface of the crossed edges of every two arched surfaces is knife edge. The utility model also discloses a square-hole processing device for drilling square hole. The device comprises a square auger, a template with a square hole, and a floating clamp for fixing the square auger in axial direction and allowing the square auger to move in radial direction. When drilling a square hole, one end of the square auger is clamped by the floating clamp, and the square auger is made to penetrate the square hole of the template. The square auger and the square-hole processing device of the utility model effectively solve the problem of square hole drilling of a drill press, facilitate processing of square holes, and reduce the cost thereof.
Description
Technical Field
The utility model relates to a drill bit of drilling and device in processing hole, in particular to drill bit and the device in processing square hole of a brill square hole.
Background
At present, square holes on mechanical parts are generally formed by the following methods: one is to manually finish a square hole by a file after drilling; one is that after drilling, the hole is cut and paired by a cutting machine, or the square hole is planed by a cow plane, or the hole is cut and shaped by a numerical control line; if the blind hole needs to be machined, the blind hole is generally milled to the depth by a milling machine, and then formed by cold heading or directly formed by electric spark and other modes.
No matter the square hole is formed in the mode, the labor and money are higher than those of a drilling machine. But the problem is that square hole drill bits do not exist at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a square hole bores that can bore square hole.
In order to solve the technical problem, the utility model discloses the square drill is the triangular prism shape drill bit, and the cylinder is the three arc surface that intersects each other, and the radius of this three arc surface is the same and the arc length is the same, and the terminal surface of the crossing arris of per two arc surfaces is the edge of a knife.
The utility model discloses before the square hole brill square hole, can pass the square hole in the template, earlier on the work piece bore one with the round hole of square hole inscribe, the length of side of the square hole in this template with treat that the side of drilling square hole is the same, work as the utility model discloses when the square hole brill is rotatory, square hole and the terminal surface trisection edge of a knife on its each cylinder inscribe template get into the angle in the square hole in the template in succession to will treat that drilling processing is square.
The to-be-solved technical problem of the utility model is to provide a square hole processingequipment that can bore square hole.
In order to solve the technical problem, the square hole processing device comprises a square hole drill, the square hole drill is in a triangular prism shape, a cylindrical surface is three mutually intersected arc surfaces, the radii of the three arc surfaces are the same, the arc lengths of the three arc surfaces are the same, and the end surface of each two intersected edges of the arc surfaces is a knife edge; the square hole drilling device comprises a template, wherein a square hole is formed in the middle of the template, and the side length of the square hole is equal to that of the square hole to be processed and equal to the radius of an arc surface of a square hole drill; a square hole drill penetrates through a square hole in the template; the floating chuck can make the square hole drill fixed in the axial direction and can move in the radial direction, and the floating chuck clamps one end of the square hole drill.
The utility model discloses before the square hole brill square hole, can pass the square hole in the template, earlier on the work piece bore one with the round hole of square hole inscribe, the length of side of the square hole in this template with treat that the side of drilling square hole is the same, work as the utility model discloses when the square hole brill is rotatory, square hole and the terminal surface trisection edge of a knife on its each cylinder inscribe template get into the angle in the square hole in the template in succession to will treat that drilling processing is square.
Drawings
FIG. 1 is a schematic view of the end face shape of the square hole drill of the present invention;
fig. 2 is a schematic diagram of the relationship between the square hole drill and the square hole on the template of the present invention, wherein the dotted line represents the inner edge of the square hole on the template;
fig. 3 is a schematic view of the square hole drill of the present invention at a position in the square hole on the template, wherein the dotted line represents the inner edge of the square hole on the template, and the three edges of the square hole drill are simultaneously inscribed in the inner edge of the square hole on the template at the position;
fig. 4 is a schematic view of another position of the square hole drill of the present invention in the square hole in the template, wherein the dotted line represents the inner edge of the square hole in the template, at which position one edge of the square hole drill is closest to the angular point of the square hole in the template;
fig. 5 is a schematic structural view of the preferred embodiment of the square hole processing device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses the square hole bores for three prismatic long columns shape, and the end face shape is as shown in figure 1, and its outer fringe is the same arc surface of three crossing shape size each other, and the radius of this three arc surface is R, and the terminal surface of the crossing arris of per two arc surfaces is the edge of a knife. When the square hole drill is used for drilling a square hole, the square hole drill needs to be sleeved into a template with the square hole, and the side length of the square hole on the template is equal to the radius of the arc surface of the square hole drill, as shown in fig. 2. When the square hole drill rotates in the square hole on the template, like the rotation of a rotor of a cycloid pump in a spindle, three knife edges of the drill bit alternately enter four square angles of the template to perform alternate cutting, so that the square hole is formed on a workpiece to be machined, and the side length of the formed square hole is equal to R.
When the square hole drill rotates, the center of the square hole drill can generate displacement in the square hole on the template; when the square hole drill is not rotated, the center of the square hole drill cannot be displaced in the square hole on the template because the square hole drill is always inscribed in the inner wall of the square hole. In fig. 2, R represents both the side length of the square hole on the template and the radius of the cylindrical arc of the square hole drill, and the inner edge of the square hole on the template is always tangent to all the cylindrical arcs of the square hole drill. When the square drill rotates, its center moves radially therewith as shown in fig. 3 and 4. In the position shown in fig. 3, three edges of the square drill are simultaneously inscribed in the inner edge of the square hole in the template, and in the position shown in fig. 4, a knife edge of the square drill slides into the corner of the square hole in the template and is nearest to the corner vertex of the square hole in the template. According to the principle that the square hole drill rotates in the hole above the template, the four corners of the drilled square hole cannot be sharp-angled and have a small round angle. By calculation, one can obtain:
Y＝X-R/2，
Ymax＝R(tg30°-tg22.5°)/2，
F＝*R-Ymax-X；
wherein,
y represents the offset of the center of the square hole drill and the center of the hole above the template in the position shown in figure 3,
x represents the distance from the center of the square hole drill farthest from the inner edge of the hole above the template in the position shown in figure 3,
ymax represents the maximum offset of the square drill center from the center of the hole above the template at the position shown in figure 4,
f represents the closest distance F of the square hole drill edge from the angular point of the hole above the template in the position shown in fig. 4, which is also the portion where the edge fails to cut into the hole to be machined.
The end face of the square hole drill contacting with the piece to be drilled is provided with a counter bore along the axial direction, so that the square hole drill can be pushed forwards in the hole when drilling.
The utility model discloses when the square drill is used for boring the square hole, except that needs and the supporting use of aforementioned template of taking the square hole, still need use a floating chuck 100. The floating chuck 100 can be arranged on a drilling machine, and the structure of the floating chuck is shown in fig. 5, and comprises a taper shank 1, a thread cover 2, a shell 3, an intermediate slider 4, a joint 5 and a thrust ball bearing 6; the shell 3 is a cylinder with internal threads; one end of the joint 5 with the small diameter is fixed with the end of the square hole drill 8, and the end with the large diameter has a rotationally symmetrical shape and is arranged in the shell 3; the thrust ball bearing 6 is positioned between the joint 5 and the shell 3, is sleeved outside the joint 5 and is fixed in the shell 3, and balls in the thrust ball bearing 6 are tightly attached to the joint 5; the middle slide block 4 has a rotationally symmetrical shape and is positioned in the shell 3, and one end of the middle slide block is connected with the end surface of the joint 5 in a mode of cylindrical protrusion and corresponding groove; one end of the taper shank 1 is provided with a large outer diameter, the other end of the taper shank is provided with a small outer diameter, and the end with the large outer diameter is arranged in the shell 3 and is connected with the middle slide block 4 in a mode of cylindrical protrusion and corresponding groove; the end face of the taper shank 1 is provided with a bulge which is matched with a groove on the end face of the middle slide block 4, and the bulge on the other end face of the middle slide block 4 in the 90-degree direction is matched with a groove on the end face of the joint 5; the screw cap 2 is floating sleeved on one end of the taper shank 1 with a small outer diameter and is connected with the shell 3 through screw threads.
The movement of the floating chuck is to transmit torque to a middle sliding block 4, a joint 5 and a plane thrust bearing 6 through a taper shank 1, and the above parts have a gap adjusted by a shell 3 and a thread cover 2 so as to keep that each part in the shell 3 can slide in the radial direction and cannot move in the axial direction; the flat thrust bearing 6 mainly serves to reduce frictional resistance.
In addition, the outer diameters of the middle sliding block 4, the joint 5 and the plane thrust bearing 6 are smaller than the inner diameter of the shell 3 by a certain size, so that the middle sliding block 4, the joint 5 and the plane thrust bearing 6 can rotate eccentrically in the shell 3 to a certain extent; the outer diameters of the intermediate slider 4, the joint 5 and the flat thrust bearing 6 and the inner diameter of the housing 3 should be greater than 2Ymax, which is calculated as described above.
Use the utility model provides a during square hole processingequipment brill square hole, pass a round hole on the work piece bores with ordinary fluted drill earlier through the template of boring, the length of side R of the square hole on round hole diameter and the template equals. And then the floating chuck 100 is replaced, the square hole drill 8 is installed, the square hole drill 8 penetrates through the template 7 with the square hole, three knife edges of the square hole drill 8 run along the inner edge of the square hole on the template 7, and the three knife edges alternately cut the workpiece like an end mill. If the blind hole is machined, the handle of the drilling machine is adjusted to be in a limiting state.
To keep the cutting process smooth, the sharpening of the knife edge is important, and three knife edge edges are ground to the same height. If the outlet of the square hole is found to be lagged by an angle, three edges are advanced by an angle when the square hole drill is manufactured.
The utility model discloses square drill and square hole processingequipment have solved the problem of utilizing the drilling machine to bore the square hole effectively for the course of working in square hole becomes convenient economy.
Claims (5)
1. A square hole drill is characterized in that the square hole drill is in a triangular prism shape, a cylindrical surface is three mutually intersected arc surfaces, the radii of the three arc surfaces are the same, the arc lengths of the three arc surfaces are the same, and the end face of the intersected edge of every two arc surfaces is a knife edge.
2. The square hole drill of claim 1, wherein the end surface of the square hole drill contacting the member to be drilled is provided with a counter bore along the axial direction.
3. A square hole machining device is characterized by comprising:
the square hole drill (8) is in a triangular prism shape, the cylindrical surface is three mutually intersected arc surfaces, the radii of the three arc surfaces are the same, the arc lengths of the three arc surfaces are the same, and the end surface of the intersected edge of every two arc surfaces is a knife edge;
the square hole is formed in the middle of the template (7), and the side length of the square hole is equal to that of the square hole to be processed and equal to the radius of the arc surface of the square hole drill (8); a square hole drill (8) penetrates through a square hole in the template (7);
a floating chuck (100) capable of axially fixing the square drill (8) and radially displacing, wherein the floating chuck (100) clamps one end of the square drill (8).
4. The square hole machining device according to claim 3, wherein the floating chuck (100) comprises a taper shank (1), a threaded cover (2), a housing (3), an intermediate slider (4) and a joint (5); the shell (3) is a cylinder with internal threads; one end of the joint (5) is fixed with the end of the square hole drill (8), and the other end of the joint has a rotationally symmetrical shape and is arranged in the shell (3); the middle sliding block (4) has a rotationally symmetrical shape and is positioned in the shell (3), and one end of the middle sliding block is connected with the end surface of the joint (5) in a mode of cylindrical protrusion and corresponding groove; one end of the taper shank (1) is provided with a large outer diameter, the other end of the taper shank is provided with a small outer diameter, and the end with the large outer diameter is arranged in the shell (3) and is connected with the middle sliding block (4) in a mode of cylindrical protrusion and corresponding groove; the column shapes at the two ends of the middle sliding block (4) are vertical to the axis of the groove; the screw cap (2) is sleeved on one end of the taper shank (1) with a small outer diameter in a floating mode and is connected with the shell (3) through threads;
5. a square hole machining device according to claim 4, characterized in that the floating cartridge (100) further comprises a thrust ball bearing (6) having only a single-sided end cap; one end of the joint (5) is provided with a small diameter, the other end of the joint is provided with a large diameter, and the end of the joint (5) with the large diameter is positioned in the shell (3); the thrust ball bearing (6) is positioned between the joint (5) and the shell (3), is sleeved outside the joint (5) and is fixed in the shell (3), and a ball in the thrust ball bearing (6) is tightly attached to the joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048785 CN200974136Y (en) | 2006-12-11 | 2006-12-11 | Square auger and square aperture processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048785 CN200974136Y (en) | 2006-12-11 | 2006-12-11 | Square auger and square aperture processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200974136Y true CN200974136Y (en) | 2007-11-14 |
Family
ID=38900430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620048785 Expired - Fee Related CN200974136Y (en) | 2006-12-11 | 2006-12-11 | Square auger and square aperture processing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN200974136Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341867A (en) * | 2013-06-26 | 2013-10-09 | 上海卫星装备研究所 | Satellite cellular material cutting device |
| CN103567476A (en) * | 2013-10-30 | 2014-02-12 | 首都航天机械公司 | Fast processing device and method for polygonal inner hole |
| CN105397539A (en) * | 2015-12-15 | 2016-03-16 | 上海细瓦精密机械有限公司 | Square hole milling chuck |
| CN105478852A (en) * | 2016-01-22 | 2016-04-13 | 赵信彪 | Drilling tool for machining universal holes |
| CN105479551A (en) * | 2016-01-12 | 2016-04-13 | 营口鑫白云机械有限公司 | Woodworking square hole drilling machine and three-blade drill bit |
| CN106424833A (en) * | 2016-11-21 | 2017-02-22 | 马文强 | Square hole drilling machine |
| CN107775024A (en) * | 2016-08-31 | 2018-03-09 | 富鼎电子科技(嘉善)有限公司 | The processing method of square hole |
| CN108031906A (en) * | 2017-11-30 | 2018-05-15 | 雄邦压铸（南通）有限公司 | One kind processing square hole method |
| CN108568867A (en) * | 2018-05-03 | 2018-09-25 | 仇晨艺 | A kind of carpenter's square hole electric hand drill |
| CN110712248A (en) * | 2018-07-12 | 2020-01-21 | 苏州铨木智能科技有限公司 | Automatic angle adjusting mechanism for grid shoulder female tenon and square hole |
| CN113211584A (en) * | 2021-04-17 | 2021-08-06 | 磐安县新悦模特制品有限公司 | Stepping type knuckle section bar processing numerical control equipment and production process thereof |
-
2006
- 2006-12-11 CN CN 200620048785 patent/CN200974136Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341867B (en) * | 2013-06-26 | 2015-04-29 | 上海卫星装备研究所 | Satellite cellular material cutting device |
| CN103341867A (en) * | 2013-06-26 | 2013-10-09 | 上海卫星装备研究所 | Satellite cellular material cutting device |
| CN103567476A (en) * | 2013-10-30 | 2014-02-12 | 首都航天机械公司 | Fast processing device and method for polygonal inner hole |
| CN105397539A (en) * | 2015-12-15 | 2016-03-16 | 上海细瓦精密机械有限公司 | Square hole milling chuck |
| CN105479551A (en) * | 2016-01-12 | 2016-04-13 | 营口鑫白云机械有限公司 | Woodworking square hole drilling machine and three-blade drill bit |
| CN105479551B (en) * | 2016-01-12 | 2017-10-31 | 营口鑫白云机械有限公司 | Square auger of carpenter bed and three-wing bit |
| CN105478852A (en) * | 2016-01-22 | 2016-04-13 | 赵信彪 | Drilling tool for machining universal holes |
| CN107775024A (en) * | 2016-08-31 | 2018-03-09 | 富鼎电子科技(嘉善)有限公司 | The processing method of square hole |
| CN106424833A (en) * | 2016-11-21 | 2017-02-22 | 马文强 | Square hole drilling machine |
| CN106424833B (en) * | 2016-11-21 | 2018-09-11 | 马文强 | A kind of square hole drilling machine |
| CN108031906A (en) * | 2017-11-30 | 2018-05-15 | 雄邦压铸（南通）有限公司 | One kind processing square hole method |
| CN108568867A (en) * | 2018-05-03 | 2018-09-25 | 仇晨艺 | A kind of carpenter's square hole electric hand drill |
| CN110712248A (en) * | 2018-07-12 | 2020-01-21 | 苏州铨木智能科技有限公司 | Automatic angle adjusting mechanism for grid shoulder female tenon and square hole |
| CN113211584A (en) * | 2021-04-17 | 2021-08-06 | 磐安县新悦模特制品有限公司 | Stepping type knuckle section bar processing numerical control equipment and production process thereof |
| CN113211584B (en) * | 2021-04-17 | 2022-08-23 | 磐安县新悦模特制品有限公司 | Stepping type knuckle section bar machining numerical control equipment and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20121211 |