CN202779936U - Drilling component used for drilling process of cemented carbide materials - Google Patents
Drilling component used for drilling process of cemented carbide materials Download PDFInfo
- Publication number
- CN202779936U CN202779936U CN 201220311600 CN201220311600U CN202779936U CN 202779936 U CN202779936 U CN 202779936U CN 201220311600 CN201220311600 CN 201220311600 CN 201220311600 U CN201220311600 U CN 201220311600U CN 202779936 U CN202779936 U CN 202779936U
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- external member
- drill bit
- top external
- hardmetal materials
- boring assembly
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Abstract
The utility model discloses a drilling component used for a drilling process of cemented carbide materials. The drilling component is used for carrying out drilling to cemented carbide materials with thickness less than 5 mm. The drilling component comprises a drill bit, a top end set and a shaft piece, wherein the drill bit, the top end set and the shaft piece are coaxially connected. The drill bit and the shaft piece are respectively arranged at two ends of the top end set. A central hole is formed in the end face of the top end set opposite to the drill bit, and a circular groove is formed in the opening end of the central hole. A connection structure is arranged on the end face of the top end set corresponding to the shaft piece, and the external end face of the connection structure is provided with a groove. The drill bit is of a tungsten carbide bur, and is strung in the central hole of the top end set. The end portion of the drill bit extends out of the central hole of the top end set. The shaft piece is connected with the top end set through the connection structure in a sleeved mode. A knurling section is arranged on one end of the shaft piece opposite to the top end set, and the knurling section of the shaft piece is arranged in an external spanner drill chuck. The drilling component used for the cemented carbide materials drilling technique is good in integrate structure, high in accuracy, low in cost, strong in generality, and wide in application, and improves processing quality.
Description
Technical field
The utility model relates to a kind of pincers bed processing assembly, is specifically related to a kind of boring assembly for the Hardmetal materials bore process.
Background technology
At present, in the middle and small motor mould is made, often need to prepare special tooling and cooperate the mold parts manufacturing, 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 is often selected discarded Hardmetal materials cutter blade.Usually with shape molding and Drilling operation.Wire cutting technology is often adopted in its 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.
The utility model content
The utility model provides a kind of boring assembly for the Hardmetal materials bore process, can thicker Hardmetal materials be holed, and the boring outward appearance is complete, can make whole process state steady, is conducive to processing.
For achieving the above object, the utility model provides a kind of boring assembly for the Hardmetal materials bore process, and this boring assembly is holed for the Hardmetal materials that thickness is not more than 5 millimeters; Be characterized in that this boring assembly comprises drill bit, top external member and the shaft spare of coaxial connection; This drill bit and shaft spare are arranged at respectively the two ends of top external member;
The above-mentioned top external member end face relative with drill bit is provided be used to the centre bore that drill bit is set, and is provided with cannelure in the open end of centre bore; The external member end face relative with shaft spare in top is provided with syndeton; This syndeton is made as cylinder, and its outer face is provided with groove;
Above-mentioned drill bit adopts tungsten bur, and its string is located in the centre bore of top external member; The centre bore of top external member is stretched out in the end of drill bit;
The end face of the relative end with the top external member of above-mentioned shaft spare is provided with circular hole, and is located at by this circle hole sleeve on the syndeton of top external member, and realization shaft spare is connected with the top external member;
Above-mentioned shaft spare is provided with knurled segment in contrast to an end of top external member, and this knurled segment string of shaft spare is located in the external spanner drill chuck.
The length that the top external member is stretched out in above-mentioned drill bit end is not more than the thickness of 5 millimeters Hardmetal materials greater than processed thickness, and the extension elongation of this drill bit is not more than long 3 to 5 millimeters of the thickness of 5 millimeters Hardmetal materials than thickness.
The aperture interference fits of the external diameter of above-mentioned drill bit and top external member centre bore.
Be welded to connect between above-mentioned drill bit and the top external member and be integral.
The external diameter of above-mentioned cannelure is greater than the aperture of centre bore.
The bottom of above-mentioned centre bore is made as taper.
The annular sidewall of above-mentioned cannelure is made as the inclined-plane of taper, and the external diameter of cannelure is connected by this inclined-plane with internal diameter, and the external diameter of cannelure arranges towards its opening, and internal diameter is towards the centre bore setting.
Be embedded with the jump ring spacer in the groove of syndeton on the external member of above-mentioned top.
Interference fit between above-mentioned shaft spare and the top external member, and non-tightness connects.
The utility model is a kind of to be compared for the boring assembly of slab type Hardmetal materials bore process and the boring assembly of prior art, its advantage is, the extension elongation of the utility model drill bit is than long 3 to 5 millimeters of the thickness of Hardmetal materials, is applicable to that thickness is not more than 5 millimeters Hardmetal materials and holes;
The utility model adopts the Clip Reed structure, has improved technique bind mode between top external member and the shaft spare, avoids the contingent skidding of prior art spiral marking connection, guarantee in boring procedure, be an integral body among between top external member and the shaft spare, processing steadily is not offset.Effectively guarantee the apparent mass of machining accuracy and processing, increase work efficiency;
Be connected by the non-fastening type of jump ring spacer as transition between the utility model top external member and the shaft spare, connect, locate by the embedded groove type clip spring structure between top external member and the shaft spare, 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; Simultaneously, processing front installation, still to process rear dismounting all very convenient, can as the welding manner that prior art adopts, not spend strength to separate top external member and shaft spare are rigid, this process structure guarantees to greatest extent between top external member and shaft spare that dimensional accuracy is not separately affected by loading, unloading and size distortion occurs; Solve the shortcoming of spiral marking connection, integrative-structure and welding disjunctor in the prior art, reduced cost, easy and simple to handle, be conducive to increase work efficiency and guarantee machining accuracy;
Top of the present utility model external member and wolfram steel bore as singly joining, and structural integrity is good, and this new construction has the precision height, and cost is low, highly versatile, widely applicable advantage;
Not to adopt traditional mechanical attachment mode between the personal module that the utility model tungsten bur, top external member and jump ring spacer form and the shaft spare, adopt embedded groove type jump ring new construction 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.Through hole circumference place behind the brill is without bad outward appearances such as burr, overlaps.Be conducive to the assembling of postorder;
The utility model patent 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.
Description of drawings
Fig. 1 is the cutaway view of a kind of boring assembly for the Hardmetal materials bore process of the utility model;
Fig. 2 is the structural representation of the top external member of a kind of boring assembly for the Hardmetal materials bore process of the utility model;
Fig. 3 is the side view of the top external member of a kind of boring assembly for the Hardmetal materials bore process of the utility model;
Fig. 4 is the structural representation of the drill bit of a kind of boring assembly for the Hardmetal materials bore process of the utility model;
Fig. 5 is the cutaway view after top external member, drill bit and the combination of jump ring spacer of a kind of boring assembly for the Hardmetal materials bore process of the utility model;
Fig. 6 is the cutaway view after top external member, drill bit and the jump ring spacer of a kind of boring assembly for the Hardmetal materials bore process of the utility model is welded to connect;
Fig. 7 is the cutaway view that is used for the Hardmetal materials drilling equipment that a kind of boring assembly for the Hardmetal materials bore process of the utility model is suitable for.
The specific embodiment
Below in conjunction with accompanying drawing, further specify specific embodiment of the utility model.
As shown in Figure 1, the utility model discloses a kind of boring assembly for the Hardmetal materials bore process, and this boring assembly is mould in the processing of pincers bed, is used for that thickness is not more than 5 millimeters Hardmetal materials and holes.
This boring assembly comprises drill bit 1, top external member 3 and the shaft spare 5 of coaxial connection.Drill bit 1 and shaft spare 5 are arranged at respectively the two ends of top external member 3.
Between top external member 3 and shaft spare 5, go back mechanical connection jump ring spacer 4 is arranged.
Be provided with knurled segment 51 at shaft spare 5 in contrast to an end of top external member 3.
As shown in Figure 2, top external member 3 is made as cylindrical, and two end face is oppositely arranged with drill bit 1 and shaft spare 5 respectively.This top external member 3 adopts Cr12 materials to make, and by heat treatment (after namely quenching again lonneal), with acquisition higher case hardness and intensity.
Top external member 3 and drill bit 1 relative end face is provided be used to the centre bore 31 that drill bit 1 is set, and is provided with cannelure 32 in the open end of centre bore 31.
The bottom of centre bore 31 is made as taper.
The external diameter of cannelure 32 is greater than the aperture of centre bore 31, large 3 to 6 millimeters than the aperture of centre bore 31 of the external diameters of this cannelure 32.
The edge of centre bore 31 openends and the internal diameter of cannelure 32 join.
The annular sidewall of cannelure 32 is made as the inclined-plane of taper, and the external diameter of cannelure 32 is connected by this inclined-plane with internal diameter, and the external diameter of cannelure 32 arranges towards its opening, and internal diameter arranges and joins with the opening part of centre bore 31 towards centre bore 31.
Such as Fig. 2 and in conjunction with shown in Figure 3, top external member 3 is provided with syndeton 33 with the end face that shaft spare 5 is oppositely arranged, this syndeton 33 is made as cylinder, and the diameter of syndeton 33 is less than the body of top external member 3, and syndeton 33 overlaps with the central shaft of the body of top external member 3 simultaneously.
Be provided with the groove 34 of strip towards the outer face that shaft spare 5 arranges in this syndeton 33, this groove 34 is parallel to syndeton 33 outer faces and arranges, simultaneously this excessively central shaft setting of syndeton 33 of groove 34, its length equals the diameter of syndeton 33 end faces, makes the two ends of groove 34 be communicated with the relative sidewall of syndeton 33.
As shown in Figure 4, drill bit 1 is made as cylinder, and the one end is made as taper, and drill bit 1 adopts tungsten bur in the utility model.
As shown in Figure 5, drill bit 1 string is located in the centre bore 31 of top external member 3, and the centre bore 31 of top external member 3 is stretched out in the end of drill bit 1.Fix the aperture interference fits of the external diameter of drill bit 1 and top external member 3 centre bores 31 for ease of tungsten bur 1 and the preliminary of top external member 3.
For guaranteeing that tungsten bur 1 can keep firm in top external member 3 before welding, the length L 2 that drill bit 1 stretches out top external member 3 centre bores 31 is about half of drill bit 1 overall length L3.
As shown in Figure 6, be integral by being welded to connect between drill bit 1 and the top external member 3.
This centre bore 31 and cannelure 32 are the back taper process structure, (being that the external diameter of cannelure 32 is greater than the aperture of centre bore 31).Realized at tipped drill 1 during with top external member 3, drill bit 1 can be to greatest extent by heap buried around scolding tin 2, form " parcel " shape.Drill bit 1 can be anchored in the centre bore 31, guarantee to add the through hole edge that gets out man-hour with this and do not produce the bad outward appearances such as burr, angular, overlap.
Because the utility model is to be not more than the Special drill assembly that 5 millimeters Hardmetal materials carries out bore process for thickness, the length L of exposing after drill bit 1 welding is not more than the thickness of 5 millimeters Hardmetal materials greater than processed thickness, the exposed length L of this drill bit 1 is not more than the thickness of 5 millimeters Hardmetal materials and grows 3 to 5 millimeters than thickness, guarantee that processed Hardmetal materials drills fully.
Such as Fig. 5 and in conjunction with shown in Figure 6, jump ring spacer 4 is embedded in the groove 34 of syndeton 33 on top external member 3.The width of this jump ring spacer 4 is less than the degree of depth of groove 34, large 4 to 5 millimeters of the width of the depth ratio jump ring spacer 4 of groove 34.
Such as Fig. 1 and in conjunction with shown in Figure 6, shaft spare 5 is provided with circular hole with the end face of top external member 3 relative ends, is located at by this circle hole sleeve on the syndeton 33 of top external member 3, and realization shaft spare 5 is connected with top external member 3.
Be connected interference fit between shaft spare 5 and the top external member 3, and non-tightness connects.Purpose is that assurance top external member can not separated, come off with shaft spare, causes falling down.
As shown in Figure 7, the cutaway view that is used for the Hardmetal materials drilling equipment that is suitable for for a kind of boring assembly for the Hardmetal materials bore process of the utility model.
Above-mentioned drill bit 1 is weldingly fixed on by scolding tin 2 in the centre bore 31 of top external member 3, and jump ring spacer 4 is embedded in the groove 34 of syndeton 33 on top external member 3.Shaft spare 5 is set on the syndeton 33 of top external member 3.
On shaft spare 5, be provided with knurled segment 51 in contrast to an end of top external member 3.These knurled segment 51 strings of shaft spare 5 are located in the external spanner drill chuck 6.
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 (9)
1. boring assembly that is used for the Hardmetal materials bore process, this boring assembly is holed for the Hardmetal materials that thickness is not more than 5 millimeters; It is characterized in that this boring assembly comprises drill bit (1), top external member (3) and the shaft spare (5) of coaxial connection; This drill bit (1) and shaft spare (5) are arranged at respectively the two ends of top external member (3);
Described top external member (3) end face relative with drill bit (1) is provided be used to the centre bore that drill bit (1) is set (31), is provided with cannelure (32) in the open end of described centre bore (31); Described top external member (3) end face relative with shaft spare (5) is provided with syndeton (33); This syndeton (33) is made as cylinder, and its outer face is provided with groove (34);
Described drill bit (1) adopts tungsten bur, and its string is located in the centre bore (31) of described top external member (3); The centre bore (31) of described top external member (3) is stretched out in the end of drill bit (1);
Described shaft spare (5) is provided with circular hole with the end face of the relative end of top external member (3), and is located at by this circle hole sleeve on the syndeton (33) of described top external member (3), and realization shaft spare (5) is connected with top external member (3);
Described shaft spare (5) is provided with knurled segment (51) in contrast to an end of top external member (3), and this knurled segment (51) string of shaft spare (5) is located in the external spanner drill chuck (6).
2. the boring assembly for the Hardmetal materials bore process as claimed in claim 1, it is characterized in that, the length that top external member (3) is stretched out in described drill bit (1) end is not more than the thickness of 5 millimeters Hardmetal materials greater than processed thickness, and the extension elongation of this drill bit (1) is not more than long 3 to 5 millimeters of the thickness of 5 millimeters Hardmetal materials than described thickness.
3. the boring assembly for the Hardmetal materials bore process as claimed in claim 1 is characterized in that, the aperture interference fits of the external diameter of described drill bit (1) and described top external member (3) centre bore (31).
4. the boring assembly for the Hardmetal materials bore process as claimed in claim 1 is characterized in that, is welded to connect between described drill bit (1) and the top external member (3) to be integral.
5. the boring assembly for the Hardmetal materials bore process as claimed in claim 1 is characterized in that, the external diameter of described cannelure (32) is greater than the aperture of centre bore (31).
6. the boring assembly for the Hardmetal materials bore process as claimed in claim 1 is characterized in that, the bottom of described centre bore (31) is made as taper.
7. the boring assembly for the Hardmetal materials bore process as claimed in claim 1, it is characterized in that, the annular sidewall of described cannelure (32) is made as the inclined-plane of taper, the external diameter of cannelure (32) is connected by this inclined-plane with internal diameter, the external diameter of cannelure (32) arranges towards its opening, and internal diameter arranges towards centre bore (31).
8. the boring assembly for the Hardmetal materials bore process as claimed in claim 1 is characterized in that, is embedded with jump ring spacer (4) in the groove (34) of the upper syndeton (33) of described top external member (3).
9. the boring assembly for the Hardmetal materials bore process as claimed in claim 1 is characterized in that, interference fit between described shaft spare (5) and the top external member (3), and non-tightness connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311600 CN202779936U (en) | 2012-06-29 | 2012-06-29 | Drilling component used for drilling process of cemented carbide materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311600 CN202779936U (en) | 2012-06-29 | 2012-06-29 | Drilling component used for drilling process of cemented carbide materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779936U true CN202779936U (en) | 2013-03-13 |
Family
ID=47807277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311600 Expired - Fee Related CN202779936U (en) | 2012-06-29 | 2012-06-29 | Drilling component used for drilling process of cemented carbide materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699390A (en) * | 2012-06-29 | 2012-10-03 | 上海海事大学 | Drilling component used for drilling technique of hard alloy materials |
-
2012
- 2012-06-29 CN CN 201220311600 patent/CN202779936U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699390A (en) * | 2012-06-29 | 2012-10-03 | 上海海事大学 | Drilling component used for drilling technique of hard alloy materials |
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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 |