CN2541096Y - Joint squeeze drill and mill construction - Google Patents
Joint squeeze drill and mill construction Download PDFInfo
- Publication number
- CN2541096Y CN2541096Y CN 02233152 CN02233152U CN2541096Y CN 2541096 Y CN2541096 Y CN 2541096Y CN 02233152 CN02233152 CN 02233152 CN 02233152 U CN02233152 U CN 02233152U CN 2541096 Y CN2541096 Y CN 2541096Y
- Authority
- CN
- China
- Prior art keywords
- section
- pole section
- round bar
- caulking groove
- bar section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 title 1
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 15
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000003801 milling Methods 0.000 claims abstract description 13
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 5
- 235000009854 Cucurbita moschata Nutrition 0.000 claims description 9
- 240000001980 Cucurbita pepo Species 0.000 claims description 9
- 235000009852 Cucurbita pepo Nutrition 0.000 claims description 9
- 235000020354 squash Nutrition 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Drilling Tools (AREA)
- Earth Drilling (AREA)
Abstract
A joint extrusion type drill bit and milling cutter structure mainly comprises a knife edge part made of tungsten carbide material and a holding part made of stainless steel, wherein the diameter surface of the knife edge part is ground and processed with a cutting edge section, the back end of the cutting edge part is provided with a round bar section at one end, and the tail end of the round bar section is processed into a guide end; the clamping part drills an embedding groove which can be used for the round bar section of the blade part to extrude and sleeve in the center of the front section, and the aperture of the embedding groove is smaller than or equal to the diameter of the round bar section; therefore, the clamping part of the stainless steel does not need to be heated at room temperature, the round bar section of the blade part is matched with the tail end guide end of the round bar section to assist the round bar section to initially align to the center of the caulking groove under the condition that the diameter of the caulking groove is smaller than that of the round bar section, and the round bar section can be directly pushed into the caulking groove of the clamping part to be mutually jointed without using any welding material as a connecting interface, so that the manufacturing cost benefit can be reduced, and the integral cutting precision of the cutter can be ensured.
Description
Technical field
The utility model relates to machine tools, especially relate to a kind of joint squash type drill bit and milling cutter structure.
Background technology
Press, the drill bit and the milling cutter of general pcb board boring are made by the tungsten carbide material of high rigidity with system, the wearing and tearing or the fracture meeting at the blade position of causing are treated as scrap with it behind its enforcement boring operations for forming, yet tungsten carbide raw material production capacity is reduced gradually and is deficient at present, cause the raw material acquisition cost in a flash with regard to more than the surging several times, relatively with regard to regard to the industry of producing the PCB drilling cutting tool, because tungsten carbide material cost costliness, cause manufacturing cost to reduce, can't reach economic benefit, make it the bottleneck of manufacturing cost that present industry faces.
As shown in Figure 1, tungsten carbide raw material rod be processed into blade part 1 with drill lip ', arrange in pairs or groups again the holding part 2 of a stainless steel bars ', this holding part 2 ' in front end be drilled with a caulking groove 21 ', can supply blade part 1 ' end insertion connection involutory, but this needs earlier stainless steel bars holding part 2 ' heated uniform temperature connection process, to reach caulking groove 21 ' expansion, help the smooth insertion of blade part 1 ' end and give solid welding again, just make involutory drill bit and the milling cutter that connects to regeneration of blade part 1 ' and holding part 2 ' mutually after cooling, so stainless steel bars holding part 2 ' need through expanding with heat and contract with cold to connection process, can directly influence the rigidity and the axial precision of holding part, not only cause the holding capacity of blade part 1 ' terminal solid welding place, and bar forms the state of bending, and is serious even can't do with cutwork with the concentricity of the certain level of blade part 1 ' reach.
Summary of the invention
In view of this, the purpose of this utility model is based on the demand of industry, improved at above-mentioned institute various shortcoming, a kind of joint squash type drill bit and milling cutter structure is proposed, but it can utilize tungsten bur collocation one holding part of being made by stainless steel of path size to engage drill bit and the milling cutter that extrusion modling goes out a drilling, not only can solve expensive cost of material and obtain problem, reduce manufacturing cost, and can be able to solve the problem of the terminal involutory binding holding part of blade part, make the holding part of stainless steel bars need not processing processing procedure through the butt joint of expanding with heat and contract with cold, blade part and holding part can directly be pushed under room temperature link the certain concentricity of involutory maintenance, can guarantee the whole cutting precision of cutter.
The purpose of this utility model realizes by following technical proposals, joint squash type drill bit of the present utility model and milling cutter structure, it mainly includes the holding part that blade part that a tungsten carbide material makes and a stainless steel are made, it is characterized in that: this blade part attrition process on diametric plane has one section to cut the sword section, and blade part is in cutting sword section rear end and remaining with an end pole section, and this pole section end and the guide end of being processed into, and this holding part lie in before the section center get out a caulking groove that can be inserted in for the extruding of the pole section of blade part, the aperture of this caulking groove is for being less than or equal to pole section diameter; By this, under the normal temperature of chamber, the holding part that this stainless steel is made need not to be heated, and the pole section of blade part can be utilized under the condition of caulking groove aperture less than pole section diameter, and the effect that cooperates the terminal guide end of pole section can assist pole section initial alignment caulking groove center, need not to make to link interface by any welding material, can make the pole section can directly compel to push in the caulking groove of holding part, make tungsten carbide material make drilling portion and stainless steel and make the holding part one that is bonded with each other, and then can reach reduction manufacturing cost benefit, also can guarantee the whole cutting precision of cutter simultaneously.
Description of drawings
Fig. 1 is known a kind of engagement type regeneration drill bit schematic diagram;
Fig. 2 is a generalized section of the present utility model;
Fig. 3 is the guide end assembled state schematic diagram of blade part of the present utility model with circular shape;
Figure 4 shows that the guide end assembled state schematic diagram of the utility model straight line lead angle shape.
Symbol description:
Blade part ... ... .1,1 ' cuts the sword section ... ... .11
The pole section ... ... the .12 guide end ... ... .13
Holding part ... ... .2,2 ' caulking groove ... ... .21,21 '
According to the utility model above-mentioned purpose, now make further detailed description with regard to technological means, latent structure conjunction with figs. that its specific embodiment adopted.
The specific embodiment
See also Fig. 2 to Fig. 4, the utility model provides and engages the squash type drill configurations and mainly include the holding part 2 that blade part 1 that a tungsten carbide material makes and a stainless steel are made.
This blade part 1 can be the tungsten bur that reclaims, milling cutter or by the tungsten bur and the milling cutter bar of path size again, on its front end bar portion diametric plane attrition process make one section can conform with the requirement specification size cut sword section 11, this blade part 1 is in cutting sword section 11 rear ends and remain with an end pole section 12, and pole section 12 is terminal and be processed into the guide end 13 that is circular shape or straight lead angle shape.
This holding part 2 gets out one in preceding section center can push the caulking groove 21 that is inserted in for the pole section 12 of blade part 1, the aperture of this caulking groove 21 is for being less than or equal to pole section 12 diameters, learn that through testing repeatedly caulking groove 21 optimum apertures are less than pole section 12 diameters 0～20 μ m.
Learn by above-mentioned explanation, the pole section 12 of blade part 1 is implemented in the involutory binding of reality with the caulking groove 21 of holding part 2, its holding part 2 that need not stainless steel is made heats, directly at room temperature, utilize under the condition of aperture less than pole section 12 diameters 0～20 μ m of caulking groove 21, and cooperate pole section 12 ends to be processed into guide end 13 designs of straight line lead angle shape or circular shape, can utilize the guide end 13 of this straight line lead angle shape or circular shape to have auxiliary effect of aiming at caulking groove 21 centers in pole section 12 during in firm insert, the favourable pole section 12 initial caulking grooves of aligning smoothly 21 centers as shown in Figures 3 and 4, utilize pressurizing unit directly pole section 12 to be pushed in the caulking groove 21 that is squeezed into holding part 2 again, making tungsten carbide material make blade part 1 makes holding part 2 with stainless steel and is bonded with each other, and both engage the concentricity that precision can reach certain level, the actual cutting precision level of completely newly making tungsten carbide material drill bit and milling cutter that also can meet, can not only reach the benefit that reduces manufacturing cost, also can guarantee the whole cutting precision of cutter simultaneously.
In sum, the utility model provides and engages squash type drill bit and milling cutter structure, can reach its intended purposes and progressive really, and also have usability on industry, can solve the present problem that manufacturing cost increases that faces, have sizable practicality for the PCB industry.
Claims (3)
1, a kind of joint squash type drill bit and milling cutter structure, it mainly includes the holding part that blade part that a tungsten carbide material makes and a stainless steel are made, and it is characterized in that:
This blade part attrition process on diametric plane has one section to cut the sword section, and blade part is in cutting sword section rear end and remaining with an end pole section, and this pole section end and the guide end of being processed into, and this holding part gets out a caulking groove that can be inserted in for the extruding of the pole section of blade part in preceding section center, and the aperture of this caulking groove is for being less than or equal to pole section diameter; At room temperature, the pole section of blade part can be utilized under the condition of caulking groove aperture less than pole section diameter, and the effect that cooperates the terminal guide end of pole section can assist pole section initial alignment caulking groove center, need not to make to link interface with any welding material, can make the pole section can directly compel to push in the caulking groove of holding part, make tungsten carbide material make drilling portion and stainless steel and make the holding part one that is bonded with each other.
2, joint squash type drill configurations as claimed in claim 1, it is characterized in that the pole section is terminal and the guide end be processed into for being circular shape or straight line lead angle shape.
3, joint squash type drill configurations as claimed in claim 1 is characterized in that the caulking groove optimum aperture is less than pole section diameter 0～20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02233152 CN2541096Y (en) | 2002-04-25 | 2002-04-25 | Joint squeeze drill and mill construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02233152 CN2541096Y (en) | 2002-04-25 | 2002-04-25 | Joint squeeze drill and mill construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541096Y true CN2541096Y (en) | 2003-03-26 |
Family
ID=33708360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02233152 Expired - Lifetime CN2541096Y (en) | 2002-04-25 | 2002-04-25 | Joint squeeze drill and mill construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541096Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689056A (en) * | 2012-05-23 | 2012-09-26 | 长城汽车股份有限公司 | Formed milling cutter for chain wheels |
| CN104646592A (en) * | 2014-12-12 | 2015-05-27 | 许自清 | Cylindrical cutter upset-extruding molding method |
-
2002
- 2002-04-25 CN CN 02233152 patent/CN2541096Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689056A (en) * | 2012-05-23 | 2012-09-26 | 长城汽车股份有限公司 | Formed milling cutter for chain wheels |
| CN102689056B (en) * | 2012-05-23 | 2014-06-04 | 长城汽车股份有限公司 | Formed milling cutter for chain wheels |
| CN104646592A (en) * | 2014-12-12 | 2015-05-27 | 许自清 | Cylindrical cutter upset-extruding molding method |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120425 Granted publication date: 20030326 |