CN102699394B - Sleeve embedding groove type processing tool adopting clamp spring connecting structure - Google Patents
Sleeve embedding groove type processing tool adopting clamp spring connecting structure Download PDFInfo
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- CN102699394B CN102699394B CN201210221262.1A CN201210221262A CN102699394B CN 102699394 B CN102699394 B CN 102699394B CN 201210221262 A CN201210221262 A CN 201210221262A CN 102699394 B CN102699394 B CN 102699394B
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Abstract
The invention relates to a sleeve embedding groove type processing tool adopting a clamp spring connecting structure, which is fixed and clamped by a spanner drill chuck and used for drilling the hard alloy material with the thickness being 5-10mm. The processing tool comprises a drill bit, a top end sleeve piece, a rod body piece and a sleeve cylinder, wherein a top end sleeve piece is connected with the drill bit; the rod body piece is connected with the top end sleeve piece in interference fitting manner; the sleeve cylinder is sleeved at the outer part of the rod body piece, a clamp spring positioning piece arranged in an embedding groove manner is further connected between the top end sleeve piece and the rod body piece; and the spanner drill chuck is fixed and clamped on the outer wall of the sleeve. According to the sleeve embedding groove type processing tool, the structure is simple and the manufacturing cost is low; the shortcomings and limits in the prior art can be solved; the stability in the process of drilling is guaranteed; the processing quality and the processing efficiency are effectively improved; and furthermore, the application scale is wide.
Description
Technical field
The present invention relates to the frock that a kind of Hardmetal materials that is 5～10mm for thickness carries out Drilling operation, refer in particular to a kind of sleeve embedded groove type processing tool that adopts clamp spring connection structure, 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 of using in mould manufacture, selects the discarded cutter blade of being made by 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.Yet the effect after using according to reality,, there is respectively following shortcoming and restriction in the special toolings 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 that needs the Hardmetal materials of high rigidity, high pulling torque, only relying on and be threaded and mesh, 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, all than screw connection structure, is significantly increased.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 that causes 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 guarantee remain a state stably in whole process.Especially when 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, yet in practical operation, inconvenient especially during 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, guarantee that whole process state is steady simultaneously.
Summary of the invention
The object of this invention is to provide a kind of sleeve embedded groove type processing tool that adopts clamp spring connection structure, be used for the Hardmetal materials that is 5～10mm to thickness and carry out Drilling operation, simple in structure, manufacturing cost is lower, can effectively guarantee the stationarity in Drilling operation process, improve crudy and efficiency, applied range.
For achieving the above object, the invention provides a kind of sleeve embedded groove type processing tool that adopts clamp spring connection structure, it is by spanner drill chuck fixed clamp, and for being 5～10mm to thickness, Hardmetal materials carries out Drilling operation; 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; Be set in the sleeve of described shaft part outside; 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 sleeve.
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, along diameter, offer the first groove.
Length in described drill bit insertion drill bit fixed installation hole is at least 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 along diameter, offer caulking groove at the end face center of this second connector on the end face of this second connector; It is outside that described the second connector that offers interference connecting hole is set in the first connector; 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, is uniformly distributed and is provided with some the second grooves in the cylindrical outer surface of described the 3rd connector.
Middle part at described shaft part is provided with limited step.
Described sleeve consists of two and half round busses, is provided with some concave slots on the inwall of this half round buss, and its magnitude setting, distributing position and size and some the second grooves in described the 3rd connector cylindrical outer surface are corresponding fastening one by one; On the outer wall of described half round buss, be provided with annular knurl.
The sleeve embedded groove type processing tool of employing clamp spring connection structure 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 guaranteed stationarity and crudy in Drilling operation process.
2, the present invention is provided with half round buss in shaft part outer cover, by the recess-mounted on its built-in concave slot and shaft part, fasten, make processing tool in high-speed drilling process, can obtain enough moments of torsion, with through hole surrounding and the smooth of the edge that guarantees 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 guarantee 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 sleeve embedded groove type processing tool of clamp spring connection structure 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.
Accompanying drawing explanation
Fig. 1 is the process schematic diagram that adopts the sleeve embedded groove type processing tool of clamp spring connection structure in the present invention;
Fig. 2 is the cross-sectional view that adopts the sleeve embedded groove type processing tool of clamp spring connection structure in the present invention;
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;
Fig. 8 is that in the present invention, semicircle jacket casing is located at the end view on shaft part.
The specific embodiment
Below in conjunction with Fig. 1～Fig. 8, 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 is by spanner drill chuck 1 fixed clamp, and for being 5～10mm to thickness, Hardmetal materials 3 carries out Drilling operation.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; Be set in the sleeve of described shaft part 8 outsides; 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 sleeve.
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, along diameter, offer the first groove 52.
Wherein, the described drill bit fixed installation internal diameter in hole 53 and the external diameter of described drill bit 4 match.Length in described drill bit 4 insertion drill bit fixed installation holes 53 is at least half of these drill bit 4 overall lengths, in order to guarantee 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 guarantee when carrying out Drilling operation, thereby can drill Hardmetal materials 3 completely, forms through holes.
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, guarantee that drill bit 4 can be fastenedly connected in top external member 5, guarantee when utilizing processing tool of the present invention to hole to Hardmetal materials simultaneously, the through hole surrounding and the edge that get out 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, at the end face center of this second connector 81, offers interference connecting hole 82, and along diameter, offers caulking groove 83(as shown in Figure 7 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, thereby make to form interference between top external member 5 and shaft part 8, is connected.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, can there is not separated situation about coming off with shaft part 8 in top external member 5, and in the boring procedure at whole processing tool in High Rotation Speed, can not skid, guarantee the validity of Drilling operation.
The other end of described shaft part 8 is provided with the 3rd connector 85, is uniformly distributed and is provided with some the second grooves 86 in the cylindrical outer surface of described the 3rd connector 85.In the present embodiment, in the cylindrical outer surface of described the 3rd connector 85, be uniformly distributed and be provided with 4 the second grooves 86.In the middle part of described shaft part 8, be provided with limited step 84, in order to prevent spanner drill chuck 1 slippage downwards and affect drilling quality in Drilling operation process, guarantee the plateau in whole Drilling operation process.
Described sleeve consists of two and half round busses 9, and it adopts Cr12 Steel material to make, and heat-treats, and after quenching, carries out lonneal again, thereby obtains higher case hardness and intensity.On the inwall of described half round buss 9, be provided with some concave slots, its magnitude setting, distributing position and size and some the second grooves 86 in described the 3rd connector 85 cylindrical outer surface are corresponding fastening one by one, as shown in Fig. 8 and Fig. 1, make described two and half round busses 9 be set in the 3rd connector 85 outsides of shaft part 8.In the present embodiment, on the complete sleeve lining being formed by two and half round busses 9, be provided with four with the second groove 86 convex slot of corresponding fastening one by one.Arranging of half round buss can avoid directly spanner drill chuck 1 being clamped in generation wearing and tearing on shaft part 8; Even if because spanner drill chuck 1 clamping causes wearing and tearing, also can solve by only changing half round buss in the outer circumferential walls of half round buss 9, effectively reduce manufacturing cost.On the outer wall of described half round buss 9, be provided with annular knurl, to increase the frictional resistance between spanner drill chuck 1 and half round buss 9, prevent from skidding in process and affect crudy.
The sleeve embedded groove type processing tool of employing clamp spring connection structure 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 guaranteed 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, the present invention is provided with half round buss in shaft part outer cover, while holing due to the Hardmetal materials to thicker, if directly holed by shaft part, because machined material is thicker, during boring, between drill bit and processed Hardmetal materials, can produce huge frictional force, may cause torque-on-bit not enough, cause drill hole to have corner angle to produce or boring after the bore periphery that forms have burnt trace or flange, cause outward appearance not satisfactory, directly affect drilling quality.Therefore, half round buss of the present invention fastens by the recess-mounted on its built-in concave slot and shaft part, make whole processing tool under equal drilling speed effect, can obtain enough moments of torsion, with through hole surrounding and the smooth of the edge that guarantees to get out, can not produce the bad outward appearances such as burr, corner angle limit, overlap, effectively improve drilling efficiency and quality.Meanwhile, described half round buss can also increase spanner drill chuck and sleeve is added the frictional resistance between the section of holding, and prevents from processing boring procedure, skidding between spanner drill chuck and half round buss.
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 rigid separated with shaft part.Meanwhile, the present invention can guarantee 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, the sleeve embedded groove type processing tool of employing clamp spring connection structure 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 there is 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.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. adopt a sleeve embedded groove type processing tool for clamp spring connection structure, by spanner drill chuck (1) fixed clamp, for being 5～10mm to thickness, Hardmetal materials (3) carries out Drilling operation; 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);
Be set in the outside sleeve of described shaft part (8);
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 sleeve;
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), along diameter, offer the first groove (52);
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), at the end face center of this second connector (81), offers interference connecting hole (82), and along diameter, offers caulking groove (83) 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 sleeve embedded groove type processing tool of employing clamp spring connection structure as claimed in claim 1, is characterized in that, described drill bit (4) adopts wolfram steel material to make.
3. the sleeve embedded groove type processing tool of employing clamp spring connection structure 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 sleeve embedded groove type processing tool of employing clamp spring connection structure as claimed in claim 3, is characterized in that, the length in described drill bit (4) insertion drill bit fixed installation hole (53) is at least 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 sleeve embedded groove type processing tool of employing clamp spring connection structure as claimed in claim 4, is characterized in that, in the position, aperture in described drill bit fixed installation hole (53), is provided with back taper ledge structure (54).
6. the sleeve embedded groove type processing tool of employing clamp spring connection structure 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), is uniformly distributed and is provided with some the second grooves (86) in the cylindrical outer surface of described the 3rd connector (85).
7. the sleeve embedded groove type processing tool of employing clamp spring connection structure as claimed in claim 6, is characterized in that, in the middle part of described shaft part (8), is provided with limited step (84).
8. the sleeve embedded groove type processing tool of employing clamp spring connection structure as claimed in claim 6, it is characterized in that, described sleeve consists of two and half round busses (9), on the inwall of this half round buss (9), be provided with some concave slots, its magnitude setting, distributing position and size and some the second grooves (86) in described the 3rd connector (85) cylindrical outer surface are corresponding fastening one by one.
9. the sleeve embedded groove type processing tool of employing clamp spring connection structure as claimed in claim 8, is characterized in that, on the outer wall of described half round buss (9), is provided with annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221262.1A CN102699394B (en) | 2012-06-29 | 2012-06-29 | Sleeve embedding groove type processing tool adopting clamp spring connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221262.1A CN102699394B (en) | 2012-06-29 | 2012-06-29 | Sleeve embedding groove type processing tool adopting clamp spring connecting structure |
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| Publication Number | Publication Date |
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| CN102699394A CN102699394A (en) | 2012-10-03 |
| CN102699394B true CN102699394B (en) | 2014-03-19 |
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| CN201210221262.1A Expired - Fee Related CN102699394B (en) | 2012-06-29 | 2012-06-29 | Sleeve embedding groove type processing tool adopting clamp spring connecting structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107498082B (en) * | 2017-09-26 | 2023-06-09 | 浙江硕和机器人科技有限公司 | Sleeve head positioning and drilling mechanism |
| CN114454349B (en) * | 2022-01-19 | 2023-06-13 | 重庆臻宝科技股份有限公司 | Horizontal separating device for quartz ring plates |
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- 2012-06-29 CN CN201210221262.1A patent/CN102699394B/en not_active Expired - Fee Related
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| 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 | Tool holding assembly |
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| 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 |
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