CN103071864A - Toothed indexable worm gear hob for planar secondary enveloping worm drive - Google Patents
Toothed indexable worm gear hob for planar secondary enveloping worm drive Download PDFInfo
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- CN103071864A CN103071864A CN2013100332784A CN201310033278A CN103071864A CN 103071864 A CN103071864 A CN 103071864A CN 2013100332784 A CN2013100332784 A CN 2013100332784A CN 201310033278 A CN201310033278 A CN 201310033278A CN 103071864 A CN103071864 A CN 103071864A
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- indexable
- tip
- throw away
- indexable insert
- cutter hub
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Abstract
The invention discloses a toothed indexable worm gear hob for planar secondary enveloping worm drive. The toothed indexable worm gear hob comprise a hob body, wherein a plurality of rows of straight channels are formed in the periphery of the hob body uniformly along an axial direction and are respectively provided with an elongated shim in an insertion manner, each elongated shim is low in middle and high in two ends so as to adapt to the shape of the periphery of the hob body, and a plurality of grooves for positioning indexable hob blades are machined in the elongated shims and are provided with the detachable indexable hob blades in the insertion manner. The worm gear hob is convenient to manufacture, high in machining precision and long in service life and is economic and reliable.
Description
Technical field
The present invention relates to the inserted indexable worm gear hob of a kind of planar double-enveloping worm transmission.
Background technology
Common planar double-enveloping worm transmission worm gear hob can be divided into monoblock type, inserted-blade type and inserted tooth type.For monoblock type, because the manufacturing of whole employing high-speed steel, cost is too high, lacks economy.Inserted-blade type and inserted tooth type are that blade or cutter tooth adopt the high-speed steel manufacturing, cutter hub partly adopts high-quality structural steel, with respect to monoblock type, cost is lower, but no matter is monoblock type or inserted-blade type or inserted tooth type, all needs by the mode that meets its forming principle blade to be carried out grinding on the special purpose machine tool of processing plane twice-enveloping enveloping worm, then adopt the mode of manual back-off to shovel out relief angle, owing to adopting the mode of manual back-off, reduced the accuracy of manufacture, affected the hobboing cutter quality.Lack at present the reliable planar double-enveloping worm transmission of a kind of economy worm gear hob.
Summary of the invention
The object of the present invention is to provide the inserted indexable worm gear hob of a kind of planar double-enveloping worm transmission, this worm gear hob is easily manufactured, and economical reliable, machining accuracy is high, long service life.
The objective of the invention is to adopt following technical scheme to realize: the inserted indexable worm gear hob of a kind of planar double-enveloping worm transmission, comprise cutter hub, described cutter hub perimembranous evenly offers some row's straight troughs vertically, described each straight trough is inserted with the strip edge bearing vertically, low two ends are high to adapt with described cutter hub perimembranous shape in the middle of the described strip edge bearing, be processed with the groove that several are used for the location indexable insert tip, throw away tip on the described strip edge bearing, be inserted with dismountable indexable insert tip, throw away tip on the described groove.
The invention has the beneficial effects as follows that to have overcome prior art midplane twice-enveloping enveloping worm hob manufacturing cost high, make difficulty, the problem that the accuracy of manufacture is poor, adopt indexable insert tip, throw away tip, easily manufactured, economical reliable, machining accuracy is high, indexable insert tip, throw away tip adopts the carbide alloy manufacturing, has improved cutting rate, has prolonged cutter life.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the structural representation of indexable insert tip, throw away tip in the embodiment of the invention.
Fig. 3 is the structural representation of strip edge bearing in the embodiment of the invention.
Fig. 4 is the structural representation of cutter hub in the embodiment of the invention.
Fig. 5 is the structural representation of end cap in the embodiment of the invention.
Among the figure, 1, the end cap screw, 2, end cap, 3, cutter hub, 4, the strip edge bearing, 5, indexable insert tip, throw away tip, 6, soket head cap screw, 7, nut, 8, plain washer, 9, spring washer, 10, minor flank, 11, transitional region, 12, land, 13, curved edge.
The specific embodiment
The inserted indexable worm gear hob of planar double-enveloping worm transmission of the present invention, as shown in Figure 1, comprise cutter hub 3, described cutter hub 3 perimembranous evenly offer some row's straight troughs vertically, described each straight trough is inserted with strip edge bearing 4 vertically, low two ends are high to adapt with described cutter hub 3 perimembranous shapes in the middle of the described strip edge bearing 4, are processed with the groove that several are used for location indexable insert tip, throw away tip 5 on the described strip edge bearing 4, are inserted with dismountable indexable insert tip, throw away tip 5 on the described groove.
Indexable insert tip, throw away tip 5 is cutting tips of worm gear hob, and the top and the bottom of described indexable insert tip, throw away tip 5 are about Central Symmetry, to realize indexable function; Described indexable insert tip, throw away tip 5 comprises the rake face of class rhombus, four minor flanks 10 being located at the left and right sides, rake face upper and lower part and the rear end face of upwards locating in cutter hub week for blade; Because minor flank 10 is locating surfaces, described minor flank 10 is the plane, to adapt with the groove side that is all the plane, realize that blade is along the axial location of cutter hub, described rake face comprises four curved edges 13, is provided with land 12 behind the described curved edge 13, also will have relief angle δ simultaneously, another side relative with curved edge 13 on the described land 12 is not straight line, therefore form one section non-wide transitional region 11 between land 12 and the minor flank 10.
Described strip edge bearing forms for first spacer of upwards locating described indexable insert tip, throw away tip in cutter hub week at each groove side, described cutter hub perimembranous also forms for second spacer of upwards locating described indexable insert tip, throw away tip and the first spacer in week at each straight trough side, the shape of described the first spacer and the second spacer and described indexable insert tip, throw away tip shaped upper part adapt, and described indexable insert tip, throw away tip, the first spacer and the middle part of the second spacer are connected through threaded fastener.
The rake face middle part of described indexable insert tip, throw away tip, the rear end face middle part of described cutter hub the second spacer all offer shoulder hole, described indexable insert tip, throw away tip, the first spacer and the connection of spacer of being connected adopt soket head cap screw to penetrate from the rear end face of the second spacer, at the rake face fastening nuts of indexable insert tip, throw away tip.
The axial two ends of described cutter hub are provided with the end cap for the described cutter hub of axial location and strip edge bearing, and described end cap is connected with described cutter hub through threaded fastener.
Described indexable insert tip, throw away tip has indexable function, and each indexable insert tip, throw away tip adopts the PM technique manufacturing on its three-dimensional entity model basis.
Described groove stage casing also offers some square grooves be used to holding described indexable insert tip, throw away tip lower end protuberance.
The invention will be further described below in conjunction with accompanying drawing.
The present invention adopts inserted tooth type, but be different from the inserted worm gear hob of existing planar double-enveloping worm transmission, each cutter tooth that the present invention inlays has indexable function, and each cutter tooth can according to three-dimensional entity model separately, adopt PM technique to make separately.
Fig. 1 is the structure composition diagram of the embodiment of the invention, and it is by cutter hub 3, strip edge bearing 4, and indexable insert tip, throw away tip 5, end cap 2, end cap screw 1, screw 6, nut 7, plain washer 8 and spring washer 9 form.Have six row's straight troughs on the cutter hub 3, strip edge bearing 4 is contained in the groove, two ends have end cap 2 that strip edge bearing 4 and cutter hub 3 are compressed, and are processed with the groove of location indexable insert tip, throw away tip 5 on the strip edge bearing 4, and cutter hub 3, strip edge bearing 4 and indexable insert tip, throw away tip 5 are by screw 6 lockings.
Fig. 2 is the structural representation of indexable insert tip, throw away tip.Indexable insert tip, throw away tip of the present invention is to adopt PM technique to make on the basis of its three-dimensional entity model, does not need after loading onto cutter hub, carries out sharpening by the mode that meets its forming principle again on the special purpose machine tool of processing enveloping worm.Indexable insert tip, throw away tip adopts the Hardmetal materials manufacturing.Indexable insert tip, throw away tip is the cutting tip of worm gear hob, and the place leaves land at cutting edge, also will have relief angle simultaneously.Because two minor flanks of indexable insert tip, throw away tip are locating surfaces, need make the plane, and the cutting edge of indexable insert tip, throw away tip are not straight lines, therefore can form one section non-wide transitional region between cutting edge and the minor flank.The rear end face of indexable insert tip, throw away tip also is locating surface, has so just guaranteed the fully location of indexable insert tip, throw away tip.The up and down cutting edge of indexable insert tip, throw away tip has guaranteed its indexable function about central point.Central spot is left shoulder hole, adopts screw-nut locking.
Fig. 3 is the structural representation of strip edge bearing.The strip edge bearing has the effect of location indexable insert tip, throw away tip, the effect of protection cutter hub when also having tipping.Because the structural anchor ring characteristic of planar double-enveloping worm transmission worm gear hob, strip edge bearing two ends are high, and are middle low.On the strip edge bearing locating surface is arranged, corresponding with the locating surface on the indexable insert tip, throw away tip, for preventing interfering, make the location reliable, the intersection place of locating surface and bottom surface will leave groove, and the place that two locating surfaces intersect also need reserve the space of stepping down.On the strip edge bearing through hole is arranged, pass through for screw.The step at strip edge bearing two ends can allow end cap that itself and cutter hub are compressed.The processing of strip edge bearing will be in the situation that have three-dimensional entity model and finish at the machining center of four axles.
Fig. 4 is the structural representation of cutter hub.Have six row's straight troughs on the cutter hub, the strip edge bearing is loaded in the groove.The location of strip edge bearing on cutter hub is bottom surface and the rear end face by straight trough, after end cap is loaded onto at the cutter hub two ends, can guarantee the axial location of strip edge bearing.Have the square groove that some spacings do not wait on the straight trough, this is because on the cutter hub hole of wearing knife bar will be arranged, it is too dark that straight trough can not be opened, this has just limited the radial dimension of strip edge bearing, so that the strip edge bearing can not hold the indexable insert tip, throw away tip of middle several cutters tooth fully, for the indexable insert tip, throw away tip that prevents cutter hub and give prominence to is interfered, thus leave corresponding side's groove, to hold the ledge of indexable insert tip, throw away tip.Indexable insert tip, throw away tip, strip edge bearing are connected connection and are adopted soket head cap screw with cutter hub, and penetrate from back to front, lock nut at the rake face place of indexable insert tip, throw away tip.Wear from back to front the interference that can avoid screw and another row's cutter tooth, select soket head cap screw and be because the turret head size of bolt is larger without hexagon-headed bolt, meeting and fresh processed worm gear flank interference in the process of machining worm wheel, the form of soket head cap screw and employing countersunk head can effectively be avoided this situation.The packing ring of nut below is plain washer and spring washer from the bottom up successively, and plain washer can increase the lifting surface area of indexable insert tip, throw away tip, and spring washer has locking effect.Cutter hub can process cutter tooth at the special purpose machine tool of processing enveloping worm, then adopts the line cutting, vertical milling, and the processing methods such as drilling are processed remaining feature, but also work in-process is processed in the heart.
Fig. 5 is the structural representation of end cap.The effect of end cap is that the strip edge bearing is pressed on the cutter hub, also has simultaneously the effect of axial direction location strip edge bearing, and end cap is by screw and cutter hub locking.
More than be preferred embodiment of the present invention, all changes of doing according to technical solution of the present invention when the function that produces does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (7)
1. inserted indexable worm gear hob of planar double-enveloping worm transmission, comprise cutter hub, it is characterized in that: described cutter hub perimembranous evenly offers some row's straight troughs vertically, described each straight trough is inserted with the strip edge bearing vertically, low two ends are high to adapt with described cutter hub perimembranous shape in the middle of the described strip edge bearing, be processed with the groove that several are used for the location indexable insert tip, throw away tip on the described strip edge bearing, be inserted with dismountable indexable insert tip, throw away tip on the described groove.
2. the inserted indexable worm gear hob of planar double-enveloping worm transmission according to claim 1, it is characterized in that: indexable insert tip, throw away tip is the cutting tip of worm gear hob, the top and the bottom of described indexable insert tip, throw away tip are about Central Symmetry, to realize indexable function; Described indexable insert tip, throw away tip comprises the rake face of class rhombus, four minor flanks 10 being located at the left and right sides, rake face upper and lower part and the rear end face of upwards locating in cutter hub week for blade; Because minor flank 10 is locating surfaces, described minor flank 10 is the plane, to adapt with the groove side that is all the plane, realize that blade is along the axial location of cutter hub, described rake face comprises four curved edges 13, is provided with land 12 behind the described curved edge 13, also will have relief angle δ simultaneously, another side relative with curved edge 13 on the described land 12 is not straight line, therefore form one section non-wide transitional region 11 between land 12 and the minor flank 10.
3. the inserted indexable worm gear hob of planar double-enveloping worm transmission according to claim 1, it is characterized in that: described strip edge bearing forms for first spacer of upwards locating described indexable insert tip, throw away tip in cutter hub week at each groove side, described cutter hub perimembranous also forms for second spacer of upwards locating described indexable insert tip, throw away tip and the first spacer in week at each straight trough side, the shape of described the first spacer and the second spacer and described indexable insert tip, throw away tip shaped upper part adapt described indexable insert tip, throw away tip, the first spacer is connected through threaded fastener with the middle part of the second spacer.
4. the inserted indexable worm gear hob of planar double-enveloping worm transmission according to claim 1, it is characterized in that: the rake face middle part of described indexable insert tip, throw away tip, the rear end face middle part of described cutter hub the second spacer all offer shoulder hole, described indexable insert tip, throw away tip, the first spacer and the connection of spacer of being connected adopt soket head cap screw to penetrate from the rear end face of the second spacer, at the rake face fastening nuts of indexable insert tip, throw away tip.
5. the inserted indexable worm gear hob of planar double-enveloping worm transmission according to claim 1, it is characterized in that: the axial two ends of described cutter hub are provided with the end cap for the described cutter hub of axial location and strip edge bearing, and described end cap is connected with described cutter hub through threaded fastener.
6. the inserted indexable worm gear hob of planar double-enveloping worm transmission according to claim 1, it is characterized in that: described indexable insert tip, throw away tip has indexable function, and each indexable insert tip, throw away tip adopts the PM technique manufacturing on its three-dimensional entity model basis.
7. the inserted indexable worm gear hob of planar double-enveloping worm transmission according to claim 1, it is characterized in that: described groove stage casing also offers some square grooves be used to holding described indexable insert tip, throw away tip lower end protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033278.4A CN103071864B (en) | 2013-01-29 | 2013-01-29 | Toothed indexable worm gear hob for planar secondary enveloping worm drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033278.4A CN103071864B (en) | 2013-01-29 | 2013-01-29 | Toothed indexable worm gear hob for planar secondary enveloping worm drive |
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| CN103071864A true CN103071864A (en) | 2013-05-01 |
| CN103071864B CN103071864B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310033278.4A Active CN103071864B (en) | 2013-01-29 | 2013-01-29 | Toothed indexable worm gear hob for planar secondary enveloping worm drive |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334840A (en) * | 2015-07-09 | 2017-01-18 | 株式会社捷太格特 | Gear Machining Apparatus |
| EP3263263A1 (en) * | 2016-06-30 | 2018-01-03 | Seco Tools Ab | Hobbing tool with replaceable cutting inserts |
| CN108971887A (en) * | 2018-07-25 | 2018-12-11 | 宁夏天地奔牛实业集团有限公司 | The device and quick installation method of quick installation inserted tooth hob cutter head |
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| JPS57144622A (en) * | 1981-03-04 | 1982-09-07 | Toyoyama Akira | Scale type assembled worm hob |
| CN2288807Y (en) * | 1995-07-28 | 1998-08-26 | 张长启 | Plane secondary enveloping ring surface worm gear worm-gear hob |
| CN101462184A (en) * | 2007-12-21 | 2009-06-24 | 山特维克知识产权股份有限公司 | A milling cutter tool for chip removing machining, as well as a cutting body and a basic body therefor |
| CN201267905Y (en) * | 2007-12-29 | 2009-07-08 | 山东省德州市金宇机械有限公司 | Planar secondary enveloping ring surface worm gear hob |
| DE102009019394A1 (en) * | 2009-04-29 | 2010-11-04 | Eckardt, Edmund, Dipl.-Ing. | Roller cutter comprises cylindrical base body, where hard metal reversible plates are inserted at periphery of base body, and are provided in comb-shaped multiple cogging with right and left flank cutting |
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2013
- 2013-01-29 CN CN201310033278.4A patent/CN103071864B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57144622A (en) * | 1981-03-04 | 1982-09-07 | Toyoyama Akira | Scale type assembled worm hob |
| CN2288807Y (en) * | 1995-07-28 | 1998-08-26 | 张长启 | Plane secondary enveloping ring surface worm gear worm-gear hob |
| CN101462184A (en) * | 2007-12-21 | 2009-06-24 | 山特维克知识产权股份有限公司 | A milling cutter tool for chip removing machining, as well as a cutting body and a basic body therefor |
| CN201267905Y (en) * | 2007-12-29 | 2009-07-08 | 山东省德州市金宇机械有限公司 | Planar secondary enveloping ring surface worm gear hob |
| DE102009019394A1 (en) * | 2009-04-29 | 2010-11-04 | Eckardt, Edmund, Dipl.-Ing. | Roller cutter comprises cylindrical base body, where hard metal reversible plates are inserted at periphery of base body, and are provided in comb-shaped multiple cogging with right and left flank cutting |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334840A (en) * | 2015-07-09 | 2017-01-18 | 株式会社捷太格特 | Gear Machining Apparatus |
| CN106334840B (en) * | 2015-07-09 | 2019-11-05 | 株式会社捷太格特 | Gear machining equipment |
| EP3263263A1 (en) * | 2016-06-30 | 2018-01-03 | Seco Tools Ab | Hobbing tool with replaceable cutting inserts |
| WO2018001585A1 (en) | 2016-06-30 | 2018-01-04 | Seco Tools Ab | Hobbing tool with replaceable cutting inserts |
| CN109311108A (en) * | 2016-06-30 | 2019-02-05 | 山高刀具公司 | Gear hobbing cutter with replaceable cutting tip |
| US10654119B2 (en) | 2016-06-30 | 2020-05-19 | Seco Tools Ab | Hobbing tool with replaceable cutting inserts |
| CN108971887A (en) * | 2018-07-25 | 2018-12-11 | 宁夏天地奔牛实业集团有限公司 | The device and quick installation method of quick installation inserted tooth hob cutter head |
| CN108971887B (en) * | 2018-07-25 | 2023-09-29 | 宁夏天地奔牛实业集团有限公司 | Device and method for quickly mounting cutter head of inserted hob |
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| Publication number | Publication date |
|---|---|
| CN103071864B (en) | 2015-02-04 |
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