CN202438750U - Large-modulus hard alloy hob with inserted blades - Google Patents
Large-modulus hard alloy hob with inserted blades Download PDFInfo
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- CN202438750U CN202438750U CN2012200609124U CN201220060912U CN202438750U CN 202438750 U CN202438750 U CN 202438750U CN 2012200609124 U CN2012200609124 U CN 2012200609124U CN 201220060912 U CN201220060912 U CN 201220060912U CN 202438750 U CN202438750 U CN 202438750U
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- cutter
- tooth
- cutter tooth
- carbide
- hob
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Abstract
The utility model discloses a large-modulus hard alloy hob with inserted blades. The large-modulus hard alloy hob with the inserted blades comprises a cutter shaft and a plurality of cutter teeth which are distributed along a spiral line at the outer circumference of the cutter shaft, wherein hard alloy blades are fixedly arranged on the cutter teeth to form a cutting edge. Because of the adoption of the structure, the hob has the advantages of finishing the machining of an entire large-modulus gear at one time, along with long cutter life, high machining efficiency, high accuracy and low cost. In addition, the structure that the hard alloy blades are inserted on a single circle of cutter teeth is adopted, and the cutter teeth at the head and the cutter teeth at the tail are aligned, so that complete enveloping of a tooth form can be finished after the hob turns for a circle, and meanwhile, continuous machining of each tooth of the gear can be realized; and thus, the technical prejudice that a plurality of circles of cutter teeth are adopted by all the hobs in the prior art is broken, and the problem that blade inserting positions and fastening holes cannot be machined by the cutter teeth on the middle part of the hob of the multi-circle cutter tooth structure is also solved by the adoption of the circle-ring structure, so the hard alloy blades can be inserted on each tooth. According to the large-modulus hard alloy hob with the inserted blades, the cutter teeth at the head or the tail are detachable, so that inserting holes can be conveniently machined in all cutter teeth.
Description
Technical field
The utility model relates to machining tool, particularly is used for the hobboing cutter of Gear Processing.
Background technology
Hobboing cutter is the processing external toothing straight-tooth used always and the cutter of helical gears, because its profile of tooth is complicated, belongs to the complex class cutter.During Gear Processing, hobboing cutter and workpiece are made the space gear motion, with fixing speed ratio rotation, are become the involute profile of gear by the cutter tooth profile of tooth envelope of each adjacent position of cutting successively.
The general whole high-speed steel that adopts of micron hob is processed in existing, can reach the requirement of general Gear Processing to cutter.But in the manufacturing of big module hob,, normally adopt ordinary steel as matrix for reducing cost; Inlay the structure of a slice high-speed steelknife gear piece; During this hobboing cutter machining large-modulus gear the gear of heavy mechanical equipments such as boats and ships and wind-powered electricity generation (as be used for), since big during all middle fine module gear processing of cutting output, wear extent, cutting force, even if the cutting edge material adopts high-speed steel; Performances such as its hardness, wearability still can not well satisfy the use needs; Half the just the need often occur being worked into and change cutter, must recalibrate after the replacing and wait operation, not only working (machining) efficiency reduction; Also be difficult to guarantee machining accuracy, and the high-speed steel hobboing cutter situation such as broken teeth also appears in the process of gear easily causes the tooth base to scrap and problems such as lathe damage.
For the performance that increases cutter; Can on the cutter material, adopt the better carbide alloy of performance to replace high-speed steel; But it is almost impossible that the characteristic of carbide alloy has determined to be processed into the baroque like this cutter of hobboing cutter; Its application also only is limited to the simple cutter of shape and structure, like lathe tool, milling cutter etc.Solution to the problems referred to above in the prior art is to substitute method, promptly adds and at first uses man-hour the disc type milling cutter to process at large module gear, but owing to the cutter tooth of milling cutter only circumferentially distributes but not the helix distribution along cutter shaft; The form of gear tooth that its roughing goes out is a straight-tooth shape; Therefore, need to add and reserve more surplus man-hour and re-use the fine finishining of high-speed steel hobboing cutter, to obtain involute profile at milling cutter; Gear for tooth accuracy is had relatively high expectations also need carry out processing such as roll flute.In substituting method; Though one can accomplish the processing of gear to the high-speed steel hobboing cutter; But two process steps comparatively complicated and consuming time (a common gear wheel only mill teeth or gear hobbing operation just needs tens of and even up to a hundred hours); Milling cutter changes needs calibration behind the hobboing cutter, makes the method for substituting have still that working (machining) efficiency is low, precision is low, the high deficiency of cost.
Therefore, need to explore a kind of can be in large module gear processing the disposable hobboing cutter that processes the degree of precision profile of tooth, improving the working (machining) efficiency and the precision of large module gear, and cut down finished cost.
The utility model content
In view of this; The utility model provides a kind of big modulus carbide alloy empiecement hobboing cutter; This hobboing cutter utilizes the good characteristic of carbide alloy, solves existing high-speed steel hobboing cutter and can not once accomplish large module gear processing or substitute the technical problem that the method working (machining) efficiency is low, precision is low, cost is high.
The utility model solves the problems of the technologies described above through following technological means:
The big modulus carbide alloy empiecement hobboing cutter of the utility model comprises:
Cutter shaft;
Be distributed in a plurality of cutters tooth on the said cutter shaft periphery along helix;
Also comprise:
A plurality of carbide chip spares, its each carbide chip spare is respectively installed to the cutting portion of a corresponding cutter tooth, to form the cutting edge of cutter tooth.
Further, said each carbide chip spare comprises two carbide chips that are installed to cutter tooth cutting portion both sides symmetrically;
Further, said each cutter tooth cutting portion has the blade embedding groove, and carbide chip is embedded in the said blade embedding groove;
Further, the top of said carbide chip is concordant with the tooth top of cutter tooth;
Further, said carbide chip is installed to said cutter tooth cutting portion through screw or rivet;
Further, said helix is the individual pen helix;
Further, the head cutter tooth that distributes along the individual pen helix aligns on the cutter shaft axis direction with the afterbody cutter tooth;
Further, said head cutter tooth or afterbody cutter tooth removably connect said cutter shaft;
Further, other cutters tooth except that said head cutter tooth and/or afterbody cutter tooth are fixedly connected said cutter shaft;
Further, the position that said cutter shaft is positioned at head cutter tooth or afterbody cutter tooth is provided with the cutter tooth inlaid hole, and said head cutter tooth or afterbody cutter tooth are embedded in the cutter tooth inlaid hole through screw or rivet.
The beneficial effect of the utility model: the big modulus carbide alloy empiecement hobboing cutter of the utility model; Comprise cutter shaft and a plurality of cutters tooth that distribute along cutter shaft periphery helix; Fixedly install carbide chip on the said cutter tooth and form cutting edge; This structure can make the processing of the whole large module gear of the disposable completion of hobboing cutter, and cutter life is long, and working (machining) efficiency is high, precision is high, cost is low.In addition; The structure that on the individual pen cutter tooth, adopts carbide chip to inlay, and head and the alignment of afterbody cutter tooth, hobboing cutter rotates the complete envelope that a circle can be accomplished profile of tooth; Can realize the continuous processing of each tooth of gear equally; Broken the technological prejudice that hobboing cutter in the prior art all adopts many circle cutters tooth, the individual pen structure has also overcome the problem that the cutter tooth that is positioned at the middle part on the hobboing cutter of many circles knife-tooth structure can't process the blade inlaid hole, and carbide chip can be embedded on each tooth.Logical head of the utility model or afterbody cutter tooth are detachable, are convenient on all cutters tooth, process inlaid hole.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the big modulus carbide alloy empiecement hobboing cutter of the utility model.
The specific embodiment
Fig. 1 has shown the structure of the big modulus carbide alloy empiecement hobboing cutter of the utility model, and is as shown in Figure 1, and the big modulus carbide alloy empiecement hobboing cutter of the utility model comprises: cutter shaft 1; Be distributed in a plurality of cutters tooth 2 on the cutter shaft periphery along cutter shaft 1 periphery helix; And be respectively installed to each cutter tooth 2 cutting portion (the cutter tooth cutting portion be cutter tooth towards the position that is cut thing, the cutter tooth contact was cut the position of thing when promptly hobboing cutter rotated) on a plurality of a plurality of carbide chip spares that are used for forming the cutter tooth cutting edge.Because the characteristic of carbide alloy has determined it to be difficult to be processed to the cutter of this type of hobboing cutter labyrinth shape; Therefore, the structure that the cutting edge of hobboing cutter cutter tooth is partly replaced with carbide chip spare can effectively be utilized the good characteristic of carbide alloy, simultaneously; Big module hob is also fixed blade members easily; Make the processing of the whole large module gear of the disposable completion of hobboing cutter, and cutter life is long, has also overcome and existing substitute that the method working (machining) efficiency is low, precision is low, defect of high cost.
In an instance of the utility model, carbide chip spare can comprise two carbide chips 3 as shown in Figure 1, and these two carbide chips 3 are installed to the both sides of cutter tooth 2 cutting portions symmetrically.
In another instance of the utility model, carbide chip spare only comprises a carbide chip 3 as shown in Figure 1, and this carbide chip 3 is installed in the either side of cutter tooth 2 cutting portions.
Further improvement as technique scheme; On the said cutter tooth 2 the blade inlaid hole is set; Carbide chip 3 fixedly is embedded in the blade inlaid hole; Fixing-stable is reliable, and inlaid hole can blade form effective support, adds to eliminate the adverse effect that the fragility because of carbide chip causes man-hour.
In the present embodiment; Carbide chip is inlayed the back blade and is extended to whole effective profile of tooth (tooth top and tooth root); As shown in Figure 1, guarantee in its machinable scope, to accomplish cutting by carbide-tipped cutter bit, add in gear hobbing and be difficult for staying the dead angle that carbide chip can't be worked into man-hour.
As the further improvement of technique scheme, said carbide chip 3 is fixed through screw or rivet, and is simple in structure, fixing more reliable.
Further improvement as technique scheme; Said cutter tooth 2 is distributed in along on the individual pen helix of cutter shaft 1 periphery; Because cutter tooth all need be processed the blade inlaid hole along the cutting edge place of the axial both sides of cutter shaft, there is the problem that can't process on the tooth at middle part in traditional many circles cutter tooth hobboing cutter, therefore; Adopt the hobboing cutter of individual pen cutter tooth to address this problem well, make on each cutter tooth and all can process the blade inlaid hole easily.Simultaneously, the hobboing cutter of individual pen cutter tooth rotates a circle, and the cutter tooth the line of cut can be accomplished the envelope of a tooth of processed gear basically, also can realize the continuous processing of gear.
Further improvement as technique scheme; Head cutter tooth 2a on the said individual pen helix aligns on cutter shaft 1 axis direction with afterbody cutter tooth 2b, so that individual pen cutter tooth hobboing cutter adds the complete envelope that the line of cut of all cutters tooth in man-hour can be accomplished a tooth of processed gear.
Further improvement as technique scheme; Said head cutter tooth 2a or afterbody cutter tooth 2b are connected with cutter shaft 1 removably; Can process the blade inlaid hole to another cutter tooth easily after dismantling any in above-mentioned two cutters tooth; And a tooth that disassembles is installed after can processing again, has solved the problem that can't process inlaid hole after two teeth align.
Further improvement as technique scheme; The position that is positioned at head cutter tooth 2a or afterbody cutter tooth 2b on the said cutter shaft 1 is provided with the cutter tooth inlaid hole; Cutter tooth 2 fixedly is embedded in the cutter tooth inlaid hole through screw or rivet, and is as shown in the figure, in the present embodiment head cutter tooth 2a fixedly is embedded in the cutter tooth inlaid hole; Mosaic texture secure, cutter tooth intensity height, screw or rivet connect also can make cutter tooth fixing more firm.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (10)
1. one kind big modulus carbide alloy empiecement hobboing cutter comprises:
Cutter shaft (1);
Be distributed in a plurality of cutters tooth (2) on said cutter shaft (1) periphery along helix;
It is characterized in that also comprising:
A plurality of carbide chip spares, its each carbide chip spare are respectively installed to the cutting portion of a corresponding cutter tooth (2), to form the cutting edge of cutter tooth.
2. big modulus carbide alloy empiecement hobboing cutter according to claim 1 is characterized in that: said each carbide chip spare comprises two carbide chips (3) that are installed to cutter tooth cutting portion both sides symmetrically.
3. big modulus carbide alloy empiecement hobboing cutter according to claim 1, it is characterized in that: said each cutter tooth (2) cutting portion has the blade embedding groove, and carbide chip (3) is embedded in the said blade embedding groove.
4. big modulus carbide alloy empiecement hobboing cutter according to claim 3, it is characterized in that: the top of said carbide chip (3) is concordant with the tooth top of cutter tooth (2).
5. big modulus carbide alloy empiecement hobboing cutter according to claim 4, it is characterized in that: said carbide chip (3) is installed to said cutter tooth (2) cutting portion through screw or rivet.
6. according to any described big modulus carbide alloy empiecement hobboing cutter of claim 1-5, it is characterized in that: said helix is the individual pen helix.
7. big modulus carbide alloy empiecement hobboing cutter according to claim 6 is characterized in that: the head cutter tooth (2a) that distributes along the individual pen helix aligns on cutter shaft (1) axis direction with afterbody cutter tooth (2b).
8. big modulus carbide alloy empiecement hobboing cutter according to claim 7, it is characterized in that: said head cutter tooth (2a) or afterbody cutter tooth (2b) removably connect said cutter shaft (1).
9. big modulus carbide alloy empiecement hobboing cutter according to claim 8, it is characterized in that: other cutters tooth except that said head cutter tooth (2a) and/or afterbody cutter tooth (2b) are fixedly connected said cutter shaft (1).
10. big modulus carbide alloy empiecement hobboing cutter according to claim 8; It is characterized in that: the position that said cutter shaft (1) is positioned at head cutter tooth (2a) or afterbody cutter tooth (2b) is provided with the cutter tooth inlaid hole, and said head cutter tooth (2a) or afterbody cutter tooth (2b) are embedded in the cutter tooth inlaid hole through screw or rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200609124U CN202438750U (en) | 2012-02-23 | 2012-02-23 | Large-modulus hard alloy hob with inserted blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200609124U CN202438750U (en) | 2012-02-23 | 2012-02-23 | Large-modulus hard alloy hob with inserted blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438750U true CN202438750U (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200609124U Expired - Fee Related CN202438750U (en) | 2012-02-23 | 2012-02-23 | Large-modulus hard alloy hob with inserted blades |
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| CN (1) | CN202438750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728902A (en) * | 2012-02-23 | 2012-10-17 | 重庆工具厂有限责任公司 | Large-modulus carbide tipped hob |
| CN108890045A (en) * | 2018-07-13 | 2018-11-27 | 安徽科创新能源科技有限责任公司 | A kind of detachable gear hobbing cutter |
-
2012
- 2012-02-23 CN CN2012200609124U patent/CN202438750U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728902A (en) * | 2012-02-23 | 2012-10-17 | 重庆工具厂有限责任公司 | Large-modulus carbide tipped hob |
| CN108890045A (en) * | 2018-07-13 | 2018-11-27 | 安徽科创新能源科技有限责任公司 | A kind of detachable gear hobbing cutter |
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| 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: 20120919 Termination date: 20140223 |