CN202779944U - Shaft component used for drilling process of cemented carbide materials - Google Patents
Shaft component used for drilling process of cemented carbide materials Download PDFInfo
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- CN202779944U CN202779944U CN 201220311679 CN201220311679U CN202779944U CN 202779944 U CN202779944 U CN 202779944U CN 201220311679 CN201220311679 CN 201220311679 CN 201220311679 U CN201220311679 U CN 201220311679U CN 202779944 U CN202779944 U CN 202779944U
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- shaft
- shaft spare
- linkage section
- caulking groove
- external member
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Abstract
The utility model relates to a shaft component used for a drilling process of cemented carbide materials. In the shaft component, the front end of a shaft piece is connected with the rear end of a top end set with a drill bit at the front end through a caulking groove type clamp spring connection structure, and the rear end of the shaft piece is clamped by the front end of a spanner drill chuck to achieve coordinate connection. The caulking groove type clamp spring connection structure adopted by the shaft component used for the cemented carbide materials drilling technique is simple and convenient to install and dismount, and a tungsten carbide bur in a processing process can be guaranteed to maintain a stable state, no excursion can occur, processing accuracy and processing apparent mass can be effectively guaranteed, and work efficiency is improved. And a knurling section is arranged on the clamped section of the shaft piece so as to increase frictional resistance and to prevent slipping.
Description
Technical field
The assembly connecting structure that uses when the utility model relates to a kind of Mould Machining, particularly a kind of shaft assembly for the Hardmetal materials bore process.
Background technology
In the middle and small motor mould is made, often need to prepare the manufacturing that special tooling cooperates mold parts, some special dies frocks need adopt Hardmetal materials to carry out Drilling operation, are assembled into special tooling after finishing.
Special frock during mould is made often selects discarded Hardmetal materials cutter blade to make.Usually take shape molding and Drilling operation as main, 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, therefore this technique obviously is not suitable for.
At present, for this special warfare, the three kinds of coupling arrangements that have commonly used connect the processing personal modules such as drill bit: spiral marking connection, integrative-structure and welding disjunctor.Yet according to reality with after effect, more than three kinds of connecting structures have respectively following shortcoming:
1, spiral marking connection
This connecting structure assembly, although easy and simple to handle, and make things convenient for loading, unloading, need high rigidity, high pulling torque for the Drilling operation 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 and processing assembly (comprising top external member and shaft spare with drill bit) all are one by one corresponding (namely singly joining), so the cost of manufacture height, working (machining) efficiency is low.
3, welding: be exactly respectively with top external member and shaft spare, by welding procedure " company " construction package together.
This technique can be avoided the undercapacity that causes because of spiral marking connection effectively.But overall processing is subjected to 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 stably state in the whole process.Especially when the drill press spindle drilling speed is higher, " fractureing " phenomenon easily occurs in the parts in the processing assembly in the situation that winding degree increases, even " getting rid of " go out, and operating personnel are damaged.
In addition, although spot welding top external member and shaft spare welding " companys " can be in the same place, yet in practical operation, special inconvenience during dismounting.Such as undue force, will cause the size files distortion of each parts so that the grazing between top external member and the shaft spare, so that the damage of parts cooperation place, form the assembling loss.
So, more than three kinds of traditional handicrafts difficulty finish Hardmetal materials processing bore process.
If a kind of technique personal module scheme can be arranged, can hole to thicker Hardmetal materials, can not only effectively get out through hole, outward appearance is complete, can make again whole process state steady, is conducive to processing, and that will solve this practical challenges effectively.
The utility model content
The purpose of this utility model provides a kind of shaft assembly 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 Drilling operation that the Hardmetal materials of 5mm carries out.
In order to achieve the above object, the technical solution of the utility model provides a kind of shaft assembly for the Hardmetal materials bore process, front end is provided with the top external member of drill bit to described shaft assembly in spanner drill chuck and the boring assembly in order to connect, it is characterized in that, described shaft assembly is provided with a shaft spare, and the front end of described shaft spare is connected by the jump ring connecting structure of embedded groove type and the rear end of described top external member; Then realized being connected by the front end clamping of described spanner drill chuck in the rear end of described shaft spare.
Jump ring connecting structure by described embedded groove type and described top external member realize that the front portion of the described shaft spare that is connected is front linkage section, and the rear portion that is connected with described spanner drill chuck on the described shaft spare is rear linkage section;
Then the front end at the front linkage section of described shaft spare is formed with a caulking groove backward, so that can correspondingly insert in this caulking groove as the rear end of a jump ring spacer of described jump ring connecting structure.
The rear end of described top external member is formed with one second caulking groove, caulking groove on described the second caulking groove and the described shaft spare is offered at relative position, so that the front-end and back-end of described jump ring spacer can correspondingly be inserted in the caulking groove of described the second caulking groove and described shaft spare, realize that the non-fastening type of transition connects between top external member and the shaft spare.
The front end of the front linkage section of described shaft spare is formed with centre bore backward, and the aperture of described centre bore and described top external member are interference fit, fixes so that drill bit can stretch in this centre bore.
The rear linkage section of described shaft spare is as the gripping section of described spanner drill chuck, and the outer circumference surface of linkage section arranges knurled segment after this, the frictional resistance during with the increase clamping.
Also be provided with the limited step around front linkage section rear end between the front linkage section of described shaft spare and the rear linkage section.
The thickness of described Hardmetal materials is not more than 5 mm.
Compared with prior art, the shaft assembly for the Hardmetal materials bore process described in the utility model, its advantage is:
The utility model connects the boring assembly by the shaft spare that arranges, so that the personal module integral body that forms is under equal drilling speed effect, can obtain enough moments of torsion, improve drilling efficiency, thereby when Drilling operation slab type Hardmetal materials, (edge) is smooth around the through hole that assurance gets out, and can not produce the bad outward appearances such as burr, corner angle (limit) shape, overlap.Simultaneously, in order to increase the frictional resistance between spanner drill chuck and the shaft spare section of being held, do annular knurl at the outer circumference surface of the shaft spare section of being held and process, prevent that work in-process skids between spanner drill chuck and the shaft spare.
The utility model has also improved the technique bind mode between top external member and the shaft spare, by using the jump ring connecting structure of embedded groove type, compare traditional mechanical attachment 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 be interference fits between top external member and the shaft spare, the jump ring spacer directly is entrenched in the caulking groove of shaft spare, the non-fastening type that has so just formed transition between top external member and shaft spare connects, processing front installation, still to process rear dismounting all very convenient, and the jump ring connecting structure can not resemble need to spend strength that the top external member is carried out rigid the separation with shaft spare the welding manner.Simultaneously, this process structure guarantees between top external member and shaft spare to greatest extent, dimensional accuracy is not separately affected by loading, unloading and size distortion occurs, can also make the top external member when boring, prevent from shaft spare " transfer " phenomenon occuring stationarity and guarantee crudy when having guaranteed effectively that the wolfram steel drillstring component is implemented to drill through the hole.The used embedded groove type jump ring new construction of the utility model 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 is conducive to the assembling of postorder without bad outward appearances such as burr, overlaps.
Description of drawings
Fig. 1 a, Fig. 1 b, Fig. 1 c are respectively front section view, right side view and the left side view of the shaft assembly shaft spare for the Hardmetal materials bore process described in the utility model;
Fig. 2 is shaft spare shown in Figure 1 and the front section view of boring assembly (wherein wolfram steel welds with the top external member) when making up by the embedded groove type clip spring structure in the shaft assembly described in the utility model;
Fig. 3 is shaft assembly described in the utility model adds man-hour to Hardmetal materials after further being connected with spanner drill chuck on Fig. 5 basis cross-sectional schematic.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model.
Shaft assembly described in the utility model is connected between boring assembly and spanner drill chuck, so that whole union body can be to Hardmetal materials, for example is that the Hardmetal materials that thickness is not more than 5mm carries out Drilling operation.
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 arranges at top external member 32 front ends, 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.After will component combinations such as shaft assembly, spanner drill chuck 50 in the literary composition on its length direction separately the end near tungsten bur 31 be called front end (being the left end of Fig. 1 a, Fig. 2, the lower end of Fig. 3), be called rear end (being the right-hand member of Fig. 1 a, Fig. 2, the upper end of Fig. 3) away from an end of tungsten bur 31.
In the shaft assembly described in the utility model, the front end of a shaft spare 10 is connected with the rear end of described top external member 32 by 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 shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, the front and rear of shaft spare 10 is two different cylinders of diameter, is called front linkage section 11 and rear linkage section 12, and wherein the diameter of front linkage section 11 is larger.The material of shaft spare 10 is Cr12, through the again heat treatment of lonneal after quenching, so that higher hardness and the intensity of shaft spare 10 whole acquisitions.
Shape technique by milling (hole), front linkage section 11 at shaft spare 10 is formed with centre bore 14, also on any diameter of front linkage section 11, (for example be vertical direction shown in Fig. 1 c) 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 so that can insert wherein as the jump ring spacer 40 of jump ring connecting structure, in order to connect top external member 32 and shaft spare 10.Preferably, make the width W 4 of this caulking groove 13 than the large 0.03 ~ 0.05mm of thickness of jump ring spacer 40, can utilize gap wherein to insert this caulking groove 13 to guarantee jump ring spacer 40.
And the top external member 32 of the aperture C of centre bore 14 and with it cooperation 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 large 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 impact assembling or processing.
Cooperation is referring to Fig. 2, shown in Figure 3, and in a preferred embodiment, it is that raw material are made that above-mentioned jump ring spacer 40 adopts cutter blade, has high thermohardening, also is difficult for bending, rupturing even bear very large load.In addition, this jump ring spacer 40 is " worker " font structure.Simultaneously, rear end in top external member 32 offers the second caulking groove similarly, the described caulking groove 13 of the 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 front linkage section 11 of shaft spare 10 and rear linkage section 12, also be provided with the step 16 around front 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 occur and affect the problem of boring in when boring, to guarantee the Drilling operation quality.
The rear linkage section 12 of shaft spare 10 is used as the gripping section of spanner drill chuck 50, and doing annular knurl 15 at the circumferential surface of this gripping section processes, 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, cause drill hole to have corner angle generation or the rear bore periphery of boring that burnt trace or flange are arranged, outward appearance is not satisfactory.
Process (be among Fig. 1 a shown in the H1) by above-mentioned annular knurl 15, so that boring personal module integral body can obtain enough moments of torsion under equal drilling speed effect, improve drilling efficiency.Simultaneously, increase the frictional resistance between spanner drill chuck 50 and the shaft spare 10 rear 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 rear 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 rear linkage section 12 of shaft spare 10 can stretch in the spanner drill chuck 50 fully.Other, the rear 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 in the utility model, be connected to one by the jump ring spacer between top external member and the shaft spare, also by with the shaft spare section of being held on annular knurl process to obtain larger moment of torsion, therefore when Hardmetal materials is carried out Drilling operation, frictional resistance in the time of can increasing spanner drill chuck to the clamping of shaft spare prevents from skidding.The jump ring connecting structure has obvious advantage than traditional fastening connection of screw thread couple formula, integral structure and welding, and no matter this non-fastening type connection of the utility model is loaded or dismantled, easy and simple to handle, is conducive to increase work efficiency and guarantee machining accuracy.Therefore, the utility model process structure is simple and direct, and practicality is easy to operate, processes or 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, realistic process requirements.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (7)
1. shaft assembly that is used for the Hardmetal materials bore process, front end is provided with the top external member (32) of drill bit (31) to described shaft assembly in spanner drill chuck (50) and the boring assembly in order to connect, it is characterized in that, described shaft assembly is provided with a shaft spare (10), and the front end of described shaft spare (10) is connected by the jump ring connecting structure of embedded groove type and the rear end of described top external member (32); Then realized being connected by the front end clamping of described spanner drill chuck (50) in the rear end of described shaft spare (10).
2. the shaft assembly that is used for as claimed in claim 1 the Hardmetal materials bore process, it is characterized in that, jump ring connecting structure by described embedded groove type and described top external member (32) realize that the front portion of the described shaft spare (10) that is connected is front linkage section (11), and the upper rear portion that is connected with described spanner drill chuck (50) of described shaft spare (10) is rear linkage section (12);
Then the front end at the front linkage section (11) of described 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 described jump ring connecting structure.
3. the shaft assembly that is used for as claimed in claim 2 the Hardmetal materials bore process, it is characterized in that, the rear end of described top external member (32) is formed with one second caulking groove, caulking groove (13) on described the second caulking groove and the described shaft spare (10) is offered at relative position, so that the front-end and back-end of described jump ring spacer (40) can correspondingly be inserted in the caulking groove (13) of described the second caulking groove and described shaft spare (10), realize that the non-fastening type of transition connects between top external member (32) and the shaft spare (10).
4. the shaft assembly that is used for as claimed in claim 2 the Hardmetal materials bore process, it is characterized in that, the front end of the front linkage section (11) of described shaft spare (10) is formed with centre bore (14) backward, the aperture of described centre bore (14) and described top external member (32) are interference fit, fix so that drill bit (31) can stretch in this centre bore (14).
As described in any one in the claim 2 ~ 4 for the shaft assembly of Hardmetal materials bore process, it is characterized in that, the rear linkage section (12) of described shaft spare (10) is as the gripping section of described spanner drill chuck (50), the outer circumference surface of linkage section (12) arranges knurled segment (15) after this, the frictional resistance during with the increase clamping.
6. the shaft assembly that is used for as claimed in claim 5 the Hardmetal materials bore process, it is characterized in that, also be provided with the limited step (16) around front linkage section (11) rear end between the front linkage section (11) of described shaft spare (10) and the rear linkage section (12).
7. be used for as claimed in claim 1 the shaft assembly of Hardmetal materials bore process, it is characterized in that the thickness of described Hardmetal materials (60) is not more than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311679 CN202779944U (en) | 2012-06-29 | 2012-06-29 | Shaft component used for drilling process of cemented carbide materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311679 CN202779944U (en) | 2012-06-29 | 2012-06-29 | Shaft component used for drilling process of cemented carbide materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779944U true CN202779944U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311679 Expired - Fee Related CN202779944U (en) | 2012-06-29 | 2012-06-29 | Shaft component used for drilling process of cemented carbide materials |
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| Country | Link |
|---|---|
| CN (1) | CN202779944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728875A (en) * | 2012-06-29 | 2012-10-17 | 上海海事大学 | Stem body component for use in hard alloy material drilling process |
-
2012
- 2012-06-29 CN CN 201220311679 patent/CN202779944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728875A (en) * | 2012-06-29 | 2012-10-17 | 上海海事大学 | Stem body component for use in hard alloy material drilling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130629 |