CN214640747U - Indexable gear hob with tooth top blade integral structure - Google Patents
Indexable gear hob with tooth top blade integral structure Download PDFInfo
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- CN214640747U CN214640747U CN202120953108.8U CN202120953108U CN214640747U CN 214640747 U CN214640747 U CN 214640747U CN 202120953108 U CN202120953108 U CN 202120953108U CN 214640747 U CN214640747 U CN 214640747U
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Abstract
An indexable gear hob with an integral addendum blade structure relates to a gear machining cutter. The problems that the conventional left and right blade lapping type indexable gear hob is low in tooth root and tooth surface roughness and low in machining efficiency in the process of machining the gear hob are solved. The utility model discloses the spiral cutter body is overall structure, but transposition carbide addendum blade and transposition carbide flank of tooth blade establish on the spiral cutter body. The utility model discloses there is not the burst equipment error of traditional but transposition gear hobbing cutter, blade inclined hole installation, convenient loading and unloading for the precision of hobbing cutter is higher, and the rigidity is better, has increased tooth top and flank blade quantity under the same diameter condition and has made the roughness of the tooth root and the flank of tooth of processing gear improve 50%, has improved machining efficiency's advantage.
Description
Technical Field
The utility model relates to a gear machining cutter, concretely relates to but addendum blade overall structure's transposition gear hobbing cutter.
Background
At present, the domestic indexable gear hob is basically in a form that left and right blades are lapped to form a tooth profile, along with the increasing requirements of users on the surface roughness of tooth roots and tooth surfaces, the surface roughness of workpieces machined by the traditional lapped hob cannot meet the requirements, and the indexable gear hob with the integral structure of the tooth top blade is developed according to the requirements so as to ensure that the number of the tooth top blade and the tooth side blade is the largest, the machining roughness of the tooth roots and the tooth surfaces is better, and the machining efficiency is greatly improved.
Disclosure of Invention
The utility model discloses a but solve the problem that indexable gear hob of blade overlap joint form processing tooth root and flank of tooth roughness are low and machining efficiency is low about the tradition, provide an indexable gear hob of top of tooth blade overall structure, the concrete technical scheme who solves this problem as follows:
the utility model relates to an indexable gear hob with an integral structure of addendum blades, which consists of a helical cutter body 1, an indexable hard alloy addendum blade, an indexable hard alloy tooth side blade, an addendum blade clamping screw, a tooth side blade pressing screw, a pressing block and a double-head pressing block screw, wherein the helical cutter body is of an integral structure, the helical cutter body is provided with a cutter groove and a pressing block groove, the cutter groove is internally provided with a screw hole, the pressing block groove is also provided with a screw hole, the indexable hard alloy tooth top blade is provided with a screw clearance hole, the pressing block is provided with a screw hole, the pressing block is extruded at the lower part of the front end of the indexable hard alloy addendum blade and is fastened on the helical cutter body through the pressing block hole, the indexable hard alloy addendum blades are evenly arranged at the top of the outer circle of the helical cutter body, the indexable hard alloy tooth side blade is fixed on the side surface of the helical cutter body through the left and right staggered arrangement of the pressing screw hole by the side blade pressing screw, the indexable hard alloy addendum blade is arranged in the cutter groove, the addendum blade clamping screw is fastened on the spiral cutter body through the screw hole, and the indexable hard alloy addendum blade, the left indexable hard alloy tooth side blade and the right indexable hard alloy tooth side blade which are adjacent to the spiral cutter body form the normal tooth shape of the hob.
The indexable gear hob with the integral structure of the tooth top blade solves the problem of fragment assembly errors of the traditional indexable gear hob, the blade is installed in an inclined hole and is convenient to assemble and disassemble, so that the hob is higher in precision and better in rigidity, the tooth top blade is shared left and right, screws and pressing blocks are clamped in a double mode, the number of the tooth top blade and the number of the tooth side blades are increased under the condition of the same diameter, the roughness of the tooth root and the tooth surface of a machined gear is improved by 50%, and the machining efficiency is improved.
Drawings
Fig. 1 is a front view of the present invention, fig. 2 is a right side view of fig. 1, fig. 3 is a normal tooth profile of a hob cutter formed by two indexable cemented carbide inserts 2 and indexable cemented carbide flank inserts 3 adjacent to both sides of a helical body 1 of fig. 1, fig. 4 is a front view of the indexable cemented carbide inserts 2 of fig. 1, fig. 5 is a left side view of fig. 4, fig. 6 is a schematic structural view of the indexable cemented carbide flank inserts 3 of fig. 1, fig. 7 is a top view of fig. 6, fig. 8 is a schematic structural view of a compact of fig. 1, fig. 9 is a top view of fig. 8, and fig. 10 is a partial view of fig. 1.
Detailed Description
The first embodiment is as follows: this embodiment is described with reference to fig. 1, fig. 2, fig. 3, fig. 4, fig. 6, fig. 8, and fig. 10. The embodiment comprises a spiral cutter body 1, an indexable hard alloy tooth top blade, an indexable hard alloy tooth side blade, an tooth top blade clamping screw, a tooth side blade hold-down screw, a press block and a double-head press block screw, wherein the spiral cutter body is of an integral structure, the spiral cutter body is provided with a cutter groove and a press block groove, the cutter groove is internally provided with a screw hole, the press block groove is also internally provided with a screw hole, the cutter groove is arranged at the lower parts of the indexable hard alloy tooth top blade 2 and the indexable hard alloy tooth side blade 3, the cutter groove is internally provided with a screw hole, the press block groove is arranged on the spiral cutter body 1 below the press block 6, the indexable hard alloy tooth top blade is provided with a screw clearance hole, the press block is provided with a screw hole, the press block is extruded at the lower part of the front end of the indexable hard alloy tooth top blade and is fastened on the spiral cutter body by the double-head press block screw through the press block hole, the indexable hard alloy tooth top blade is uniformly arranged at the top of the spiral cutter body, the indexable hard alloy tooth side blade is fixed on the side surface of the spiral cutter body by a tooth side blade pressing screw through a screw hole in a left-right staggered arrangement mode, the indexable hard alloy tooth top blade is arranged in the cutter groove and is fastened on the spiral cutter body through the screw hole by an tooth top blade clamping screw, and the indexable hard alloy tooth top blade, the left indexable hard alloy tooth side blade and the right indexable hard alloy tooth side blade which are adjacent to the spiral cutter body form a normal tooth shape of the hob.
The second embodiment is as follows: this embodiment will be described with reference to fig. 1 and 2. The indexable cemented carbide tip inserts 2 and the indexable cemented carbide flank inserts 3 according to the present embodiment are plural.
The third concrete implementation mode: this embodiment will be described with reference to fig. 1, 2, and 4. The indexable cemented carbide tip insert 2 according to the present embodiment is fan-shaped.
The fourth concrete implementation mode: this embodiment will be described with reference to fig. 1, 2, 3, and 6. The indexable cemented carbide flank insert 3 according to the present embodiment is rectangular.
The fifth concrete implementation mode: this embodiment will be described with reference to fig. 1 and 2. The indexable cemented carbide tip insert 2 and the indexable cemented carbide flank insert 3 according to the present embodiment are arranged at intervals.
The sixth specific implementation mode: this embodiment will be described with reference to fig. 1 and 2. The spiral cutter body 1 in the embodiment is of an integral structure, and adopts inner hole and end face positioning, end face key groove and spiral head auxiliary positioning.
The utility model discloses a but whole transposition gear hobbing cutter adopts the generation processing principle, overall structure, and traditional processing method can not process the main locating surface in sword groove, consequently needs to carry out the fitting processing with small ball head sword to the locating surface of cutter to and traditional stick milling cutter becomes main shaft vector processing. The cutter body is roughly machined by high-quality alloy steel, then HRC29-34 is tempered, then spiral grooves and the like are roughly machined, then stress is removed, then the cutter body and the blade groove are finely machined, and finally nitriding and polishing treatment is carried out. The inspection is performed by a screw inspector in cooperation with a projector.
The above embodiments are merely exemplary and not intended to limit the present invention, and it should be noted that various other changes, modifications, substitutions and variations which are equivalent to those skilled in the art and suggested by the technical solution provided by the present invention should be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides an indexable gear hobbing cutter of addendum blade overall structure, it comprises spiral cutter body 1, indexable carbide addendum blade, indexable carbide tooth flank blade, addendum blade clamp screw, flank blade housing screw, briquetting and double-end briquetting screw, its characterized in that: the spiral cutter body is of an integral structure and is provided with a cutter groove and a pressing block groove, a screw hole is arranged in the cutter groove, a screw hole is also arranged in the pressing block groove, the indexable hard alloy tooth top blade is provided with a screw clearance hole, the press block is provided with a screw hole, the press block is extruded at the lower part of the front end of the indexable hard alloy tooth top blade and is fastened on the spiral cutter body through the press block hole by a double-head press block screw, the indexable hard alloy tooth top blade is uniformly arranged at the top of the excircle of the spiral cutter body, the indexable hard alloy tooth side blade is fixed on the side surface of the spiral cutter body by a tooth side blade hold-down screw through a screw hole in a left-right staggered arrangement, the indexable hard alloy addendum blade is arranged in the cutter groove, the addendum blade clamping screw is fastened on the spiral cutter body through the screw hole, and the indexable hard alloy addendum blade, the left indexable hard alloy tooth side blade and the right indexable hard alloy tooth side blade which are adjacent to the spiral cutter body form the normal tooth shape of the hob.
2. The indexable gear hob with integral addendum insert according to claim 1, wherein: the indexable hard alloy tooth top blade and the indexable hard alloy tooth side blade are multiple.
3. The indexable gear hob with integral addendum insert according to claim 1, wherein: the indexable hard alloy addendum blade is fan-shaped.
4. The indexable gear hob with integral addendum insert according to claim 1, wherein: the indexable hard alloy tooth side blade is rectangular.
5. The indexable gear hob with integral addendum insert according to claim 1, wherein: the indexable hard alloy tooth top blade and the indexable hard alloy tooth side blade are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120953108.8U CN214640747U (en) | 2021-05-07 | 2021-05-07 | Indexable gear hob with tooth top blade integral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120953108.8U CN214640747U (en) | 2021-05-07 | 2021-05-07 | Indexable gear hob with tooth top blade integral structure |
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| Publication Number | Publication Date |
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| CN214640747U true CN214640747U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120953108.8U Active CN214640747U (en) | 2021-05-07 | 2021-05-07 | Indexable gear hob with tooth top blade integral structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799366A (en) * | 2022-03-09 | 2022-07-29 | 吴頔 | Embedded high-order precision full-transposition inner-cooling gear hob |
-
2021
- 2021-05-07 CN CN202120953108.8U patent/CN214640747U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799366A (en) * | 2022-03-09 | 2022-07-29 | 吴頔 | Embedded high-order precision full-transposition inner-cooling gear hob |
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