CN102728875A - Stem body component for use in hard alloy material drilling process - Google Patents
Stem body component for use in hard alloy material drilling process Download PDFInfo
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- CN102728875A CN102728875A CN2012102212617A CN201210221261A CN102728875A CN 102728875 A CN102728875 A CN 102728875A CN 2012102212617 A CN2012102212617 A CN 2012102212617A CN 201210221261 A CN201210221261 A CN 201210221261A CN 102728875 A CN102728875 A CN 102728875A
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- shaft spare
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- external member
- spare
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Abstract
The invention relates to a stem body component for a hard alloy material drilling process, wherein the stem body component is connected with the rear end of the top sleeve piece of which the front end is provided with a drill bit through a grooved clamp spring connection structure at the front end of the stem body piece; and the rear end of the stem body piece is in fit connection by clamping by the front end of the spanner drill chuck. With the grooved clamp spring connection structure, a loading and unloading tool is simple and convenient and can ensure the tungsten steel drill bit is in a stable state in processing without deflection, so the processing accuracy and surface quality are enhanced effectively and the working efficiency is increased. In addition, the clamped section of the stem body piece is provided with a knurled section to increase friction and prevent sliding.
Description
Technical field
The assembly connecting structure that uses when the present invention relates to a kind of Mould Machining, particularly a kind of shaft assembly that is used for the Hardmetal materials bore process.
Background technology
In the middle and small motor mould is made, need prepare the manufacturing that special tooling cooperates mold parts often, some special dies frocks need adopt the Hardmetal materials processing of holing, and are assembled into special tooling after the completion.
Special frock during mould is made often selects for use discarded Hardmetal materials cutter blade to process.Usually formation type and boring are processed as the master beyond, and wherein wire cutting technology is often adopted in sharp processing.For boring, if directly adopt Twist Drill processing, because fluted drill self hardness is far away from Hardmetal materials, so this technology obviously is not suitable for.
At present, to this special warfare, the three kinds of coupling arrangements that have commonly used connect processing personal modules such as drill bit: spiral marking connection, integrative-structure and welding disjunctor.Yet the effect after using according to reality, more than three kinds of connecting structures have following shortcoming respectively:
1, spiral marking connection
This connecting structure assembly; Though easy and simple to handle, and make things convenient for loading, unloading, need high rigidity, high pulling torque for the boring processing of Hardmetal materials; Only rely on spiral marking connection engagement drill bit assembly, its processing and self intensity all do not reach the technological requirement of required carrying.Even in process, screw thread just bursts apart, and causes between the union body to break away from.
2, integrative-structure: being about to processing assembly is overall structure.
This bind mode on intensity, can be significantly increased than spiral marking connection.But during for the through hole of processing different size, because the pore size that drills through each through hole all is corresponding one by one (promptly singly joining) with processing assembly (comprising top external member and the shaft spare of being with drill bit), so the cost of manufacture height, working (machining) efficiency is low.
3, welding: be exactly respectively with top external member and shaft spare, through welding procedure " company " construction package together.
This technology can be avoided the undercapacity that causes because of spiral marking connection effectively.But overall processing receives force intensity still not high enough, and the connection between top external member and the shaft spare only relies on spot welding to support, and is difficult to guarantee remain a state stably in the whole machining process process.Especially when the drill press spindle drilling speed is higher, the parts in the processing assembly are prone to " fractureing " phenomenon takes place under situation about increasing around degree, even " getting rid of " go out, and operating personnel are damaged.
In addition, although spot welding can top external member and shaft spare welding " companys " be in the same place, yet in practical operation, inconvenience especially during dismounting.Like undue force, will make and grazing between top external member and the shaft spare cause the size files distortion of each parts, so that the damage of parts cooperation place, form the assembling loss.
So, more than three kinds of traditional handicrafts are difficult accomplishes Hardmetal materials processing bore process.
If a kind of technology personal module scheme can be arranged, can hole to thicker Hardmetal materials, can not only get out through hole effectively, outward appearance is complete, can make the whole machining process process status steady again, helps processing, and that will solve this practical challenges effectively.
Summary of the invention
The purpose of this invention is to provide a kind of shaft assembly that is used for the Hardmetal materials bore process; It forms a kind of special-purpose processing assembly with embedded groove type jump ring connecting structure with being connected of boring assembly, adapts to thickness is not more than the boring processing that the Hardmetal materials of 5mm carries out.
In order to achieve the above object; Technical scheme of the present invention provides a kind of shaft assembly that is used for the Hardmetal materials bore process; Said shaft assembly is provided with the top external member of drill bit in order to front end in connection spanner drill chuck and the boring assembly; It is characterized in that said shaft assembly is provided with a shaft spare, the front end of said shaft spare is connected through the jump ring connecting structure of embedded groove type and the rear end of said top external member; Then realized being connected by the front end clamping of said spanner drill chuck in the rear end of said shaft spare.
The front portion of the said shaft spare that jump ring connecting structure through said embedded groove type and said top external member realize being connected is preceding linkage section, and the rear portion that is connected with said spanner drill chuck on the said shaft spare is the back linkage section;
Then the front end at the preceding linkage section of said shaft spare is formed with a caulking groove backward, so that as a jump ring spacer of said jump ring connecting structure) the rear end can correspondingly insert in this caulking groove.
The rear end of said top external member is formed with one second caulking groove; Caulking groove on said second caulking groove and the said shaft spare is offered at relative position; So that the front-end and back-end of said jump ring spacer can correspondingly be inserted in the caulking groove of said second caulking groove and said shaft spare, realize that the non-fastening type of transition connects between top external member and the shaft spare.
The front end of the preceding linkage section of said shaft spare is formed with centre bore backward, and the aperture of said centre bore and said top external member are interference fit, fixes so that drill bit can stretch in this centre bore.
The back linkage section of said shaft spare is provided with knurled segment as the gripping section of said spanner drill chuck on the outer circumference surface of this back linkage section, the frictional resistance during with the increase clamping.
Also be provided with limited step between the preceding linkage section of said shaft spare and the back linkage section around preceding linkage section rear end.
The thickness of said Hardmetal materials is not more than 5 mm.
Compared with prior art, the shaft assembly that is used for the Hardmetal materials bore process according to the invention, its advantage is:
The present invention connects the boring assembly through the shaft spare that is provided with; Make the personal module integral body that forms under equal drilling speed effect; Can obtain enough moments of torsion, improve drilling efficiency, thereby when boring processing slab type Hardmetal materials; (edge) is smooth around the through hole that assurance gets out, and can not produce bad outward appearances such as burr, corner angle (limit) shape, overlap.Simultaneously,, on the outer circumference surface of the shaft spare section of being held, do annular knurl and handle, prevent that work in-process skids between spanner drill chuck and the shaft spare in order to increase the frictional resistance between spanner drill chuck and the shaft spare section of being held.
The present invention has also improved the technology bind mode between top external member and the shaft spare; Through using the jump ring connecting structure of embedded groove type; Compare the traditional mechanical connecting mode that between uses, both avoided the contingent skidding of original spiral marking connection, can guarantee in boring procedure again; Be connected to an integral body between top external member and the shaft spare, make processing steadily.
Because the jump ring spacer is to be nested in the groove of top external member; And between top external member and the shaft spare interference fits; The jump ring spacer directly is entrenched in the caulking groove of shaft spare; The non-fastening type that so just between top external member and shaft spare, has formed transition connects, and it is all very convenient that still processing back dismounting is installed before processing, and the jump ring connecting structure can not resemble the strength of need spending of welding manner carry out rigid the separation with the top external member with shaft spare.Simultaneously; This process structure guarantees between top external member and shaft spare to greatest extent; Dimensional accuracy is not separately influenced by loading, unloading and size distortion takes place; Can also make the top external member in when boring, prevent " transfer " phenomenon to take place at shaft spare, when having guaranteed effectively that the wolfram steel drillstring component is implemented to drill through the hole stationarity with guarantee crudy.The used embedded groove type jump ring new construction of the present invention is in reality processing; Can very firmly relevant parts be bound up; The rotation of work in-process tungsten bur the time do not rock, not eccentric, the through hole circumference place behind the brill does not have bad outward appearances such as burr, overlap, helps the assembling of postorder.
Description of drawings
Fig. 1 is front section view and the side view that is used for the shaft assembly shaft spare of Hardmetal materials bore process according to the invention;
Fig. 2 is a shaft spare shown in Figure 1 and the front section view of boring assembly (wherein wolfram steel welds with the top external member) when passing through embedded groove type jump ring textural association in the shaft assembly according to the invention;
Fig. 3 is that shaft assembly according to the invention further adds the cross-sectional schematic in man-hour with the spanner drill chuck back that is connected to Hardmetal materials on Fig. 2 basis.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present invention.
Shaft assembly according to the invention is connected between boring assembly and spanner drill chuck, makes that whole union body can be to Hardmetal materials, for example is the processing of holing of Hardmetal materials that thickness is not more than 5mm.
Cooperation is referring to Fig. 2 ~ shown in Figure 3, and above-mentioned boring assembly comprises top external member 32, and the tungsten bur 31 that external member 32 front ends are provided with on the top, and top external member 32 and tungsten bur 31 are for singly joining, and structural integrity is good.Also not welding has then illustrated scolding tin 33 between tungsten bur shown in Fig. 2 31 and the top external member 32 among Fig. 3.Will be for example in the literary composition behind the unit construction such as shaft assembly, spanner drill chuck 50 on its length direction separately the end near tungsten bur 31 be called front end (being the left end of Fig. 1, Fig. 2, the lower end of Fig. 3), be called rear end (being the right-hand member of Fig. 1, Fig. 2, the upper end of Fig. 3) away from an end of tungsten bur 31.
In the shaft assembly according to the invention, the front end of a shaft spare 10 is connected with the rear end of said top external member 32 through the jump ring connecting structure of embedded groove type, then realizes being connected with the front end of spanner drill chuck 50 in the rear end of this shaft spare 10.
Specifically as shown in Figure 1, the front and rear of shaft spare 10 is two different cylinders of diameter, linkage section 11 and back linkage section 12 before being called, and wherein the diameter of preceding linkage section 11 is bigger.The material of shaft spare 10 is Cr12, through the heat treatment of lonneal again after quenching, so that higher hardness and the intensity of shaft spare 10 whole acquisitions.
Shape technology through milling (hole); On the preceding linkage section 11 of shaft spare 10, be formed with centre bore 14; Also on any diameter of preceding linkage section 11, (for example be vertical direction shown in Fig. 1) and be formed with caulking groove 13, caulking groove 13 is arranged in the relative both sides of centre bore 14 outer rims.
Wherein, the setting of caulking groove 13 is that feasible jump ring spacer 40 as the jump ring connecting structure can insert wherein, in order to connect top external member 32 and shaft spare 10.Preferably, make the thickness big 0.03 ~ 0.05mm of the width W 4 of this caulking groove 13, can utilize gap wherein to insert this caulking groove 13 to guarantee jump ring spacer 40 than jump ring spacer 40.
And the top external member 32 of the aperture C of centre bore 14 and cooperation with it is of a size of interference fit; Purpose is tungsten bur 31 to be stretched in the centre bore 14 also fix; When guaranteeing that whole personal module clamping (is hanging shape) on spanner drill chuck 50; Top external member 32 can not separated, come off with shaft spare 10, causes falling down.The degree of depth F of centre bore 14 is than the big 3 ~ 5mm of degree of depth E of caulking groove 13, and the top external member 32 that cooperates so with it can stretch into fully, and leaves appropriate gap, guarantees that the parts that connect mutually in the process can not produce touching, so that the effect of influence assembling or processing.
Cooperation is referring to Fig. 2, shown in Figure 3, and in a preferred embodiment, it is that raw material are processed that above-mentioned jump ring spacer 40 adopts cutter blade, has high thermohardening, also is difficult for bending, rupturing even bear very big load.In addition, this jump ring spacer 40 is " worker " font structure.Simultaneously; The rear end of external member 32 offers second caulking groove similarly on the top; The said caulking groove 13 of second caulking groove and shaft spare 10 front ends is oppositely arranged; Thereby the front-end and back-end of jump ring spacer 40 are embedded respectively wherein, realize that shaft spare 10 and being connected of top external member 32 are an integral body, to guarantee that processing steadily in boring procedure.
Cooperation is referring to Fig. 1, Fig. 2, shown in Figure 3; Between the preceding linkage section 11 of shaft spare 10 and back linkage section 12, also be provided with step 16 around preceding linkage section 11 rear ends; When shaft spare 10 and spanner drill chuck 50 are connected in order to spacing; Avoid spanner drill chuck 50 the downslide shift-in to take place and influence the problem of boring, to guarantee the boring crudy in when boring.
The back linkage section 12 of shaft spare 10 is used as the gripping section of spanner drill chuck 50; And do annular knurl 15 at the circumferential surface of this gripping section and handle, purpose is to prevent when drilling through Hardmetal materials 60, because machined material is harder; Can produce huge frictional force between tungsten bur 31 and the processed Hardmetal materials 60; May cause torque-on-bit not enough, boring back bore periphery has burnt trace or flange to cause drill hole to have corner angle to produce perhaps, and outward appearance is not satisfactory.
Handle (be among Fig. 1 shown in the H1) through above-mentioned annular knurl 15, make boring personal module integral body under equal drilling speed effect, can obtain enough moments of torsion, improve drilling efficiency.Simultaneously, increase the frictional resistance between spanner drill chuck 50 and the shaft spare 10 back linkage sections 12, prevent that work in-process skids between spanner drill chuck 50 and the shaft spare 10.
The external profile diameter D of the back linkage section 12 of shaft spare 10 and the spanner drill chuck 50 inner void size of reserving are complementary, and are connected so that the back linkage section 12 of shaft spare 10 can stretch in the spanner drill chuck 50 fully.Other, the back linkage section 12 length H2 of shaft spare 10 for example, the positions such as length H1 of knurled segment 15 also have sign in the drawings, give unnecessary details no longer one by one.
In sum; The boring assembly that comprises tungsten bur and top external member among the present invention; Jump ring spacer through between top external member and the shaft spare is connected to one, also through with the shaft spare section of being held on annular knurl handle and obtain bigger moment of torsion, therefore add man-hour in that Hardmetal materials is holed; Frictional resistance in the time of can increasing spanner drill chuck to the clamping of shaft spare prevents to skid.The jump ring connecting structure has obvious advantage than traditional fastening connection of screw thread couple formula, integral structure and welding, and this non-fastening type of the present invention connects no matter load still dismounting, and is easy and simple to handle, helps increasing work efficiency and guaranteeing machining accuracy.Therefore, process structure of the present invention is simple and direct, and practicality is easy to operate, processes still to assemble all only to relate to common process, need not to employ special-purpose device drill tools or equipment, also need not to change original operating habit or flow process, meets actual process requirements.
Although content of the present invention has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.
Claims (7)
1. shaft assembly that is used for the Hardmetal materials bore process; Said shaft assembly is provided with the top external member (32) of drill bit (31) in order to front end in connection spanner drill chuck (50) and the boring assembly; It is characterized in that; Said shaft assembly is provided with a shaft spare (10), and the front end of said shaft spare (10) is connected through the jump ring connecting structure of embedded groove type and the rear end of said top external member (32); Then realized being connected by the front end clamping of said spanner drill chuck (50) in the rear end of said shaft spare (10).
2. the shaft assembly that is used for the Hardmetal materials bore process according to claim 1; It is characterized in that; The front portion of the said shaft spare (10) that jump ring connecting structure through said embedded groove type and said top external member (32) realize being connected is preceding linkage section (11), and said shaft spare (10) is gone up the rear portion that is connected with said spanner drill chuck (50) and is back linkage section (12);
Then the front end at the preceding linkage section (11) of said shaft spare (10) is formed with a caulking groove (13) backward, so that can correspondingly insert in this caulking groove (13) as the rear end of a jump ring spacer (40) of said jump ring connecting structure.
3. like the said shaft assembly that is used for the Hardmetal materials bore process of claim 2; It is characterized in that; The rear end of said top external member (32) is formed with one second caulking groove; Caulking groove (13) on said second caulking groove and the said shaft spare (10) is offered at relative position; So that the front-end and back-end of said jump ring spacer (40) can correspondingly be inserted in the caulking groove (13) of said second caulking groove and said shaft spare (10), realize that the non-fastening type of transition connects between top external member (32) and the shaft spare (10).
4. like the said shaft assembly that is used for the Hardmetal materials bore process of claim 2; It is characterized in that; The front end of the preceding linkage section (11) of said shaft spare (10) is formed with centre bore (14) backward; The aperture of said centre bore (14) and said top external member (32) are interference fit, fix so that drill bit (31) can stretch in this centre bore (14).
5. like any said shaft assembly that is used for the Hardmetal materials bore process in the claim 2 ~ 4; It is characterized in that; The back linkage section (12) of said shaft spare (10) is as the gripping section of said spanner drill chuck (50); Knurled segment (15) is set, the frictional resistance during with the increase clamping on the outer circumference surface of this back linkage section (12).
6. like the said shaft assembly that is used for the Hardmetal materials bore process of claim 5; It is characterized in that, also be provided with limited step (16) between the preceding linkage section (11) of said shaft spare (10) and the back linkage section (12) around preceding linkage section (11) rear end.
7. be used for the shaft assembly of Hardmetal materials bore process according to claim 1, it is characterized in that, the thickness of said Hardmetal materials (60) is not more than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102212617A CN102728875A (en) | 2012-06-29 | 2012-06-29 | Stem body component for use in hard alloy material drilling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102212617A CN102728875A (en) | 2012-06-29 | 2012-06-29 | Stem body component for use in hard alloy material drilling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102728875A true CN102728875A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102212617A Pending CN102728875A (en) | 2012-06-29 | 2012-06-29 | Stem body component for use in hard alloy material drilling process |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973784A (en) * | 1974-07-08 | 1976-08-10 | Donald Awalt Smith | Cutting tool adaptor |
| US20040104545A1 (en) * | 2002-12-02 | 2004-06-03 | Tsai-Ching Chen | Connection of tool with tool bit |
| CN2704436Y (en) * | 2004-06-30 | 2005-06-15 | 漳州升源机械工业有限公司 | Cutter holding assembly |
| DE102004026753A1 (en) * | 2004-05-29 | 2005-12-22 | Caniceus, Jeyaratnam | Attachment sleeve for drill, has two half shells enclosing boring shank, and detachable catch unit arranged at longitudinal surfaces of shells, where shells are pushed into cladding body and unit fixes bore in recess |
| CN201124256Y (en) * | 2007-11-12 | 2008-10-01 | 吕绍淳 | Fine hole drill bit |
| CN201684962U (en) * | 2010-03-19 | 2010-12-29 | 江苏永伟精密工具有限公司 | Drill |
| 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 |
| CN202779944U (en) * | 2012-06-29 | 2013-03-13 | 上海海事大学 | Shaft component used for drilling process of cemented carbide materials |
-
2012
- 2012-06-29 CN CN2012102212617A patent/CN102728875A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973784A (en) * | 1974-07-08 | 1976-08-10 | Donald Awalt Smith | Cutting tool adaptor |
| US20040104545A1 (en) * | 2002-12-02 | 2004-06-03 | Tsai-Ching Chen | Connection of tool with tool bit |
| DE102004026753A1 (en) * | 2004-05-29 | 2005-12-22 | Caniceus, Jeyaratnam | Attachment sleeve for drill, has two half shells enclosing boring shank, and detachable catch unit arranged at longitudinal surfaces of shells, where shells are pushed into cladding body and unit fixes bore in recess |
| CN2704436Y (en) * | 2004-06-30 | 2005-06-15 | 漳州升源机械工业有限公司 | Cutter holding assembly |
| CN201124256Y (en) * | 2007-11-12 | 2008-10-01 | 吕绍淳 | Fine hole drill bit |
| CN201684962U (en) * | 2010-03-19 | 2010-12-29 | 江苏永伟精密工具有限公司 | Drill |
| 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 |
| CN202779944U (en) * | 2012-06-29 | 2013-03-13 | 上海海事大学 | Shaft component used for drilling process of cemented carbide materials |
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Application publication date: 20121017 |