CN102717126B - Processing tooling with embedded-groove type clamping spring connection - Google Patents
Processing tooling with embedded-groove type clamping spring connection Download PDFInfo
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- CN102717126B CN102717126B CN201210221253.2A CN201210221253A CN102717126B CN 102717126 B CN102717126 B CN 102717126B CN 201210221253 A CN201210221253 A CN 201210221253A CN 102717126 B CN102717126 B CN 102717126B
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- drill bit
- jump ring
- connector
- shaft part
- external member
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Abstract
The invention relates to a processing tooling with embedded-groove type clamping spring connection, which is fixedly clamped by a wrench drill chuck and is used for carrying out drilling processing on a hard-alloy material with the thickness of less than 5mm. The processing tooling comprises a drill bit, a top-end sleeve piece and a rod body piece, wherein the top-end sleeve piece is connected with the drill bit; the rod body piece is in interference fitting with the top-end sleeve piece; a clamping spring positioning piece arranged in an embedded-groove manner is also connected between the top-end sleeve piece and the rod body piece; and the wrench drill chuck is fixedly clamped on the outer wall of the rod body piece. The processing tooling has the advantages that the structure is simple, the manufacturing cost is lower, the defects and the limitations in the prior art can be solved, the stability in the drilling processing process is guaranteed, the processing quality and the processing efficiency are improved, and the application range is wide.
Description
Technical field
The present invention relates to the frock that a kind of Hardmetal materials that is not more than 5mm for thickness carries out Drilling operation, refer in particular to a kind of processing tool that embedded groove type jump ring connects that has, belong to the technical field of pincers bed processing mold.
Background technology
In the mould of middle and small motor is manufactured, often need to prepare special tooling and coordinate mold parts manufacture, some special dies frocks need adopt Hardmetal materials to carry out Drilling operation, are assembled into special tooling after completing again.
In prior art, the special frock using in mould manufacture, selects the discarded cutter blade of being made up of Hardmetal materials conventionally, generally carries out shape molding processing and Drilling operation.The sharp processing of mould is generally adopted to wire cutting technology.And for the Drilling operation of mould, if directly adopt the mode of Twist Drill processing, because fluted drill self hardness is far away from Hardmetal materials, therefore this technique is obviously not suitable for.
At present, for above-mentioned special processing process, the conventional special tooling that has following three kinds of different syndetons of application, comprising: screw connection structure, integrative-structure and welding connection structure.But according to the effect after reality use,, there is respectively following shortcoming and restriction in the special tooling of above three kinds of different syndetons of application.
1, adopt screw connection structure
This processing tool is respectively top external member to be threaded connection to mode with shaft part to be connected.Although easy and simple to handle, and be easy for installation and removal, for the Drilling operation of Hardmetal materials that needs high rigidity, high pulling torque, only rely on and be threaded and engage, its processing intensity and frock self intensity all do not reach the technological requirement of required carrying.Even, in process, screw thread just bursts apart, and causes between connector and departs from.
2, adopt integrative-structure
This processing tool refers to that top external member and shaft part are overall structures, in processing intensity and frock self intensity, is all significantly increased than screw connection structure.But during for the through hole of need processing different size, because the pore size that drills through each through hole and processing assembly are all corresponding (singly joining) one by one.Therefore cost of manufacture is too high, and working (machining) efficiency is low.
3, adopt welding connection structure
This processing tool is respectively top external member to be connected by welding connecting mode with shaft part.Although can effectively avoid the defect of the undercapacity causing because of screw connection structure, but overall processing is subject to force intensity still to carry not technological requirement, and the connection between top external member and shaft part only relies on spot welding to support, be difficult to ensure remain a state stably in whole process.Especially in the time that drill press spindle drilling speed is higher, the parts in processing assembly are in the situation that winding degree increases, and the phenomenon that easily fractures, is even thrown out of drilling machine, causes potential safety hazard, and serious also can damage operating personnel.
In addition, although spot weld operation is welded to connect top external member and shaft part, but in practical operation, inconvenient especially when dismounting, once undue force, will cause the grazing between top external member and shaft part, causes the size distortion of each parts, so that the damage of parts cooperation place, forms assembling loss.
So the processing tool of above three kinds of traditional syndetons of employing of the prior art is more difficult completing Hardmetal materials processing bore process all.Based on above-mentioned, be necessary very much to propose a kind of processing tool that adopts new Joining Structure, can meet the technological requirement that thicker Hardmetal materials is holed, and can get out fast and effectively the through hole that outward appearance is complete, ensure that whole process state is steady simultaneously.
Summary of the invention
The object of this invention is to provide a kind of processing tool that embedded groove type jump ring connects that has, carry out Drilling operation for the Hardmetal materials that thickness is not more than to 5mm, simple in structure, manufacturing cost is lower, can effectively ensure the stationarity in Drilling operation process, improve crudy and efficiency, applied range.
For achieving the above object, the invention provides a kind of processing tool that embedded groove type jump ring connects that has, it is carried out Drilling operation by spanner drill chuck fixed clamp for the Hardmetal materials that thickness is not more than to 5mm; This processing tool comprises: drill bit; The top external member being connected with described drill bit; The shaft part being connected by interference with described top external member; Wherein, between described top external member and shaft part, be also connected with the jump ring spacer arranging by embedded groove type; Described spanner drill chuck fixed clamp is on the outer wall of shaft part.
Described drill bit adopts wolfram steel material to make.
One of them end face center of described top external member offers drill bit fixed installation hole, and the external diameter of its internal diameter and described drill bit matches, and the tail end of described drill bit is inserted in drill bit fixed installation hole, and by welding, described drill bit and top external member are fixed to connection; On another end face of described top external member, be provided with the first connector, on the end face of this first connector, offer the first groove along diameter.
The length that described drill bit inserts in drill bit fixed installation hole is at least the half of this drill bit overall length; Described drill bit exposes the thickness that length outside drill bit fixed installation hole is greater than Hardmetal materials.
Position, aperture in described drill bit fixed installation hole is provided with back taper ledge structure.
Described jump ring spacer is I-shaped, and the width of its two-end part is greater than the width of middle part; The surrounding exterior angle of this jump ring spacer is all fillet shape; Insert in the first groove of described top external member one side middle part of this jump ring spacer.
One end of described shaft part is provided with the second connector, offers interference connecting hole, and offer caulking groove along diameter at the end face center of this second connector on the end face of this second connector; Described the second connector that offers interference connecting hole is set in the first connector outside; Insert in the caulking groove of described shaft part the second side middle part of described jump ring spacer; The other end of described shaft part is provided with the 3rd connector, in the cylindrical outer surface of described the 3rd connector, is provided with annular knurl, and described spanner drill chuck fixed clamp is provided with on the 3rd connector outer wall of annular knurl on shaft part.
Middle part at described shaft part is provided with limited step.
The processing tool with the connection of embedded groove type jump ring provided by the present invention, compared with prior art, has following beneficial effect.
1, the present invention has improved the connected mode between top external member and shaft part, neither can occur because of the contingent skidding that is threaded, and jump ring spacer can be guaranteed in boring procedure again, between top external member and shaft part, be fitted and connected form as a whole, can there is not transfer phenomenon, do not rock, not eccentric, effectively ensured stationarity and crudy in Drilling operation process.
2, on the 3rd connector outer wall that the present invention is clamped by spanner drill chuck at shaft part, be provided with annular knurl, make processing tool in high-speed drilling process, can obtain enough moments of torsion, with the through hole surrounding and the smooth of the edge that ensure to get out, can not produce the bad outward appearances such as burr, corner angle limit, overlap, effectively improve drilling efficiency and quality.
3, processing tool installation and removal of the present invention are all very convenient, and can ensure to greatest extent that top external member and shaft part dimensional accuracy separately are not subject to the impact of assembly and disassembly and size distortion occurs.
In sum, the processing tool with the connection of embedded groove type jump ring provided by the present invention, can effectively solve the shortcoming and the restriction that in prior art, exist, reduce manufacturing cost, improve working (machining) efficiency and quality, and there is high accuracy, high universalizable and the advantage such as widely applicable.
Brief description of the drawings
Fig. 1 is the process schematic diagram in the present invention with the processing tool of embedded groove type jump ring connection;
Fig. 2 is the cross-sectional view in the present invention with the processing tool of embedded groove type jump ring connection;
Fig. 3 is the cross-sectional view of top external member in the present invention;
Fig. 4 is the structural representation of jump ring spacer in the present invention;
Fig. 5 is the cross-sectional view after drill bit in the present invention, top external member and the assembling of jump ring spacer;
Fig. 6 is the cross-sectional view of shaft part in the present invention;
Fig. 7 is the top view of Fig. 6, shows the end face structure of the second connector on shaft part.
Detailed description of the invention
Below in conjunction with Fig. 1～Fig. 7, describe a preferred embodiment of the present invention in detail.
As shown in Figure 1, be the process schematic diagram in the present invention, this processing tool 2, by spanner drill chuck 1 fixed clamp, carries out Drilling operation for the Hardmetal materials 3 that is 5～10mm to thickness.As shown in Figure 2, described processing tool comprises: drill bit 4; The top external member 5 being connected with described drill bit 4; The shaft part 8 being connected by interference with described top external member 5; Wherein, between described top external member 5 and shaft part 8, be also connected with the jump ring spacer 6 arranging by embedded groove type; Described spanner drill chuck 1 fixed clamp is on the outer wall of shaft part 8.
Described drill bit 4 adopts wolfram steel material to make.
Described top external member 5 adopts Cr12 Steel material to make, and heat-treats, and after quenching, carries out lonneal again, thereby obtains higher case hardness and intensity.As shown in Figure 3, one of them end face center of described top external member 5 offers drill bit fixed installation hole 53, the tail end of described drill bit 4 is inserted in drill bit fixed installation hole 53, and by welding, described drill bit 4 and top external member 5 are fixed to connection; On another end face of described top external member 5, be provided with the first connector 51, on the end face of this first connector 51, offer the first groove 52 along diameter.
Wherein, the described drill bit fixed installation internal diameter in hole 53 and the external diameter of described drill bit 4 match.The length that described drill bit 4 inserts in drill bit fixed installation hole 53 is at least the half of these drill bit 4 overall lengths, in order to ensure that before welding, it is firm that drill bit 4 can keep in top external member 5.Described drill bit 4 exposes the thickness that length outside drill bit fixed installation hole 53 is greater than Hardmetal materials 3, in order to ensure in the time carrying out Drilling operation, forms through holes thereby can drill Hardmetal materials 3 completely.
Further, position, aperture in described drill bit fixed installation hole 53 is provided with back taper ledge structure 54, in welding process, this back taper ledge structure 54 can make described drill bit 4 be embedded in scolding tin 7(as shown in Figure 5 by compact reactor to greatest extent) surrounding, form a parcel shape, ensure that drill bit 4 can be fastenedly connected in top external member 5, ensure in the time utilizing processing tool of the present invention to hole to Hardmetal materials simultaneously, the through hole surrounding getting out and edge can not produce burr, the bad outward appearances such as corner angle limit and overlap, improve the quality of Drilling operation.
Described jump ring spacer 6 can adopt discarded cutter blade.As shown in Figure 4, this jump ring spacer 6 is " work " font, and the width of its two-end part is greater than the width of middle part.The surrounding exterior angle of described jump ring spacer 6 is all fillet shape, avoids operating personnel's finger of damaging in the process of installation or removal processing tool of the present invention.As shown in Figure 5, insert in the first groove 52 of described top external member 5 a side middle part of described jump ring spacer 6.
Described shaft part 8 adopts Cr12 Steel material to make, and heat-treats, and after quenching, carries out lonneal again, thereby obtains higher case hardness and intensity.As shown in Figure 6, one end of described shaft part 8 is provided with the second connector 81, offers interference connecting hole 82 at the end face center of this second connector 81, and offers caulking groove 83(as shown in Figure 7 along diameter on the end face of this second connector 81).Wherein, described the second connector 81 that offers interference connecting hole 82 is set in the first connector 51 outsides, the first connector 51 that is top external member 5 is inclusive in the second connector 81 of shaft part 8, is connected thereby make to form interference between top external member 5 and shaft part 8.Insert in the caulking groove 83 of described shaft part 8 the second side middle part of described jump ring spacer 6, and the jump ring spacer 6 also arranging by embedded groove type between described top external member 5 and shaft part 8 is connected.The connected mode of above-mentioned this connection top external member 5 and shaft part 8, can guarantee that whole processing tool is clamped in while being hanging shape on spanner drill chuck 1, top external member 5 can not separate situation about coming off with shaft part 8, and in the boring procedure at whole processing tool in High Rotation Speed, can not skid, ensure the validity of Drilling operation.
The other end of described shaft part 8 is provided with the 3rd connector 85, in the cylindrical outer surface of described the 3rd connector 85, be provided with annular knurl 86, described spanner drill chuck 1 fixed clamp is provided with on the 3rd connector 85 outer walls of annular knurl 86 on shaft part 8, to increase the frictional resistance between spanner drill chuck 1 and the 3rd connector 85, prevent from skidding in process and affect crudy.Be provided with limited step 84 in the middle part of described shaft part 8, in order to prevent spanner drill chuck 1 slippage downwards and affect drilling quality in Drilling operation process, ensure the plateau in whole Drilling operation process.
The processing tool with the connection of embedded groove type jump ring provided by the present invention, compared with prior art, has following beneficial effect.
1, the present invention has improved the connected mode between top external member and shaft part, and the jump ring spacer that it arranges by embedded groove type connects location, and also adopts the non-of interference to be fastenedly connected between the two.Neither can occur because of the contingent skidding that is threaded, and jump ring spacer can be guaranteed in boring procedure again, between top external member and shaft part, be fitted and connected form as a whole, can there is not transfer phenomenon, do not rock, not eccentric, effectively ensured stationarity and crudy in Drilling operation process.
Because described jump ring spacer adopts cutter blade as raw material, there is high thermohardening, can bear very large load and also be difficult for bending, rupturing, therefore can meet the processing technology to Hardmetal materials.
2, on the 3rd connector outer wall that the present invention is clamped by spanner drill chuck at shaft part, be provided with annular knurl, due in the time that the Hardmetal materials to thicker is holed, between drill bit and processed Hardmetal materials, can produce huge frictional force, may cause torque-on-bit deficiency, cause drill hole to have the bore periphery forming after corner angle generation or boring to have burnt trace or flange, cause outward appearance not satisfactory, directly affect drilling quality.Therefore, the annular knurl arranging on the 3rd connector outer wall that the present invention is clamped by spanner drill chuck at shaft part, make whole processing tool under equal drilling speed effect, can obtain enough moments of torsion, with the through hole surrounding and the smooth of the edge that ensure to get out, can not produce the bad outward appearances such as burr, corner angle limit, overlap, effectively improve drilling efficiency and quality.Meanwhile, the annular knurl on described the 3rd connector outer wall can also increase spanner drill chuck and shaft part by the frictional resistance between the section of blessing (the 3rd connector), prevents from processing boring procedure, skidding between spanner drill chuck and shaft part.
3, processing tool of the present invention is dismantled all very convenient after installing before processing or processing.Can as welding manner of the prior art, need to not spend strength that top external member is separated with shaft part is rigid.Meanwhile, the present invention can ensure that top external member and shaft part dimensional accuracy separately are not subject to the impact of assembly and disassembly and size distortion occurs to greatest extent.
In sum, provided by the present invention have a processing tool that embedded groove type jump ring connects, and can effectively solve the shortcoming and the restriction that in prior art, exist, reduces manufacturing cost, improves working (machining) efficiency, and has high accuracy, high universalizable and the advantage such as widely applicable.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Read after foregoing those skilled in the art, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. there is the processing tool that embedded groove type jump ring connects, by spanner drill chuck (1) fixed clamp, carry out Drilling operation for the Hardmetal materials (3) that thickness is not more than to 5mm; It is characterized in that, this processing tool comprises:
Drill bit (4);
The top external member (5) being connected with described drill bit (4);
The shaft part (8) being connected by interference with described top external member (5);
Wherein, between described top external member (5) and shaft part (8), be also connected with the jump ring spacer (6) arranging by embedded groove type;
Described spanner drill chuck (1) fixed clamp is on the outer wall of shaft part;
Wherein, on an end face of described top external member (5), be provided with the first connector (51), on the end face of this first connector (51), offer the first groove (52) along diameter;
Described jump ring spacer (6) is I-shaped, and the width of its two-end part is greater than the width of middle part; The surrounding exterior angle of this jump ring spacer (6) is all fillet shape; Insert in first groove (52) of described top external member (5) one side middle part of this jump ring spacer (6);
One end of described shaft part (8) is provided with the second connector (81), offers interference connecting hole (82) at the end face center of this second connector (81), and offers caulking groove (83) along diameter on the end face of this second connector (81); Described the second connector (81) that offers interference connecting hole (82) is set in the first connector (51) outside; Insert in the caulking groove (83) of described shaft part (8) the second side middle part of described jump ring spacer (6).
2. the processing tool with the connection of embedded groove type jump ring as claimed in claim 1, is characterized in that, described drill bit (4) adopts wolfram steel material to make.
3. the processing tool with the connection of embedded groove type jump ring as claimed in claim 1, it is characterized in that, another end face center of described top external member (5) offers drill bit fixed installation hole (53), the external diameter of its internal diameter and described drill bit (4) matches, the tail end of described drill bit (4) is inserted in drill bit fixed installation hole (53), and by welding, described drill bit (4) and top external member (5) are fixed to connection.
4. the processing tool with the connection of embedded groove type jump ring as claimed in claim 3, is characterized in that, the length that described drill bit (4) inserts in drill bit fixed installation hole (53) is at least the half of this drill bit (4) overall length; Described drill bit (4) exposes the thickness that length outside drill bit fixed installation hole (53) is greater than Hardmetal materials (3).
5. the processing tool with the connection of embedded groove type jump ring as claimed in claim 4, is characterized in that, is provided with back taper ledge structure (54) in the position, aperture in described drill bit fixed installation hole (53).
6. the processing tool with the connection of embedded groove type jump ring as claimed in claim 1, it is characterized in that, the other end of described shaft part (8) is provided with the 3rd connector (85), in the cylindrical outer surface of described the 3rd connector (85), be provided with annular knurl (86), described spanner drill chuck (1) fixed clamp is provided with on the 3rd connector (85) outer wall of annular knurl (86) on shaft part (8).
7. the processing tool with the connection of embedded groove type jump ring as claimed in claim 6, is characterized in that, is provided with limited step (84) in the middle part of described shaft part (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221253.2A CN102717126B (en) | 2012-06-29 | 2012-06-29 | Processing tooling with embedded-groove type clamping spring connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221253.2A CN102717126B (en) | 2012-06-29 | 2012-06-29 | Processing tooling with embedded-groove type clamping spring connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102717126A CN102717126A (en) | 2012-10-10 |
| CN102717126B true CN102717126B (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210221253.2A Expired - Fee Related CN102717126B (en) | 2012-06-29 | 2012-06-29 | Processing tooling with embedded-groove type clamping spring connection |
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| Country | Link |
|---|---|
| CN (1) | CN102717126B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5934384A (en) * | 1998-04-27 | 1999-08-10 | Wang; Peter | Transmission shaft and bit mounting arrangement of a motor-driven hand drill |
| CN2704436Y (en) * | 2004-06-30 | 2005-06-15 | 漳州升源机械工业有限公司 | Cutter holding assembly |
| CN201253703Y (en) * | 2008-09-12 | 2009-06-10 | 中国有色（沈阳）冶金机械有限公司 | Relief type drill bit supporting seat |
| CN201880940U (en) * | 2010-03-31 | 2011-06-29 | 长春设备工艺研究所 | Device used for quickly replacing machine bit and other taper-shank tools |
| CN202606940U (en) * | 2012-06-29 | 2012-12-19 | 上海海事大学 | Machining tool with embedded groove type clamping spring connection |
-
2012
- 2012-06-29 CN CN201210221253.2A patent/CN102717126B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5934384A (en) * | 1998-04-27 | 1999-08-10 | Wang; Peter | Transmission shaft and bit mounting arrangement of a motor-driven hand drill |
| CN2704436Y (en) * | 2004-06-30 | 2005-06-15 | 漳州升源机械工业有限公司 | Cutter holding assembly |
| CN201253703Y (en) * | 2008-09-12 | 2009-06-10 | 中国有色（沈阳）冶金机械有限公司 | Relief type drill bit supporting seat |
| CN201880940U (en) * | 2010-03-31 | 2011-06-29 | 长春设备工艺研究所 | Device used for quickly replacing machine bit and other taper-shank tools |
| CN202606940U (en) * | 2012-06-29 | 2012-12-19 | 上海海事大学 | Machining tool with embedded groove type clamping spring connection |
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| Publication number | Publication date |
|---|---|
| CN102717126A (en) | 2012-10-10 |
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