CN209021307U - A kind of close tooth hard alloy worm milling cutter - Google Patents

A kind of close tooth hard alloy worm milling cutter Download PDF

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Publication number
CN209021307U
CN209021307U CN201821418006.0U CN201821418006U CN209021307U CN 209021307 U CN209021307 U CN 209021307U CN 201821418006 U CN201821418006 U CN 201821418006U CN 209021307 U CN209021307 U CN 209021307U
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China
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tooth
milling cutter
worm milling
cutting
hard alloy
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CN201821418006.0U
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朱源
谢秋宏
刘磊
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JIANGYIN DORSET PRECISION TOOLS Co Ltd
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JIANGYIN DORSET PRECISION TOOLS Co Ltd
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Abstract

The utility model relates to metal cutting tool technical fields, it discloses a kind of close tooth hard alloy worm milling cutters, including facing cutter, a number of cutting tooth is along the circumferential direction distributed in the outer circle of the facing cutter, the quantity of cutting tooth Z >=0.3D, D therein takes the millimeter value of the tip diameter of worm milling cutter, and the cutting tooth is the cutting tooth for carrying out full flank of tooth fine grinding using grinding abrasive disk and multi-axis numerical control grinding machine and being formed.The utility model improves the efficiency and quality of worm screw processing.

Description

A kind of close tooth hard alloy worm milling cutter
Technical field
The utility model relates to metal cutting tool technical fields, and in particular to a kind of close tooth hard alloy worm milling cutter.
Background technique
Worm screw is a kind of common mechanical transmission part, and worm milling cutter is then a kind of cutting tool for machining worm.
In the prior art, the manufacturing of worm milling cutter and the manufacturing of worm screw are respectively present following some problems:
First is that in the manufacturing of worm milling cutter, since the cutting tooth tooth form on worm milling cutter is needed using formed grinding wheel It is ground to ensure that its profile accuracy, the flank of cutting tooth need that teeth grinding wheel is used to carry out relief grinding to guarantee its back of tooth Shape and rear angular accuracy, when the cutting tooth of worm milling cutter is close tooth, the tooth socket formed between two neighboring cutting tooth is very Narrow, when on the one hand causing using formed grinding wheel grinding tooth form, contact of the formed grinding wheel with the flank of tooth is holotype face contact, therefore Its grinding force is larger, and grinding wheel is easily deformed, and is easy to produce grinding vibration and influences the precision processed；On the other hand cause to use It is easy to happen interference when teeth grinding wheel relief grinding and makes relief grinding extremely difficult.Therefore using its cutting of the worm milling cutter of the prior art The number of teeth of tooth cannot be too close, and the quantity of cutting tooth is restricted.
Second is that in the mass production manufacture of worm screw, since the number of teeth of used its cutting tooth of worm milling cutter is less, Lower cutting data can only be selected when using worm milling cutter milling worm screw, process time is longer, can not keep up with worm screw production line Beat, thus considerably reduce the production efficiency of entire worm screw production line.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of close tooth hard alloy worm milling cutters, it is intended to improve worm screw The efficiency and quality of processing.Specific technical solution is as follows:
A kind of close tooth hard alloy worm milling cutter, including facing cutter are along the circumferential direction distributed in the outer circle of the facing cutter There is a number of cutting tooth, the quantity of cutting tooth Z >=0.3D, D therein takes the tip diameter of worm milling cutter Millimeter value, the cutting tooth are the cutting for carrying out full flank of tooth fine grinding using point grinding abrasive disk and multi-axis numerical control grinding machine and being formed Tooth.
Above-mentioned full flank of tooth fine grinding include to the flank fine grinding of the tooth form fine grinding of cutting tooth, cutting tooth, The rake face fine grinding of cutting tooth.
In above-mentioned technical proposal, close tooth worm milling cutter is on the one hand solved by using grinding abrasive disk and multi-axis numerical control grinding machine Cutting tooth high-precision manufacturing issue, on the other hand by the way that the quantity of the cutting tooth of worm milling cutter is enlarged to Z >=0.3D The processing efficiency of worm screw is improved, the two mutually cooperates with, and which thereby enhances the efficiency and quality of worm screw processing.
The utility model refines cutting tooth using point grinding abrasive disk, and the processing method advantage that point grinds more traditional relief grinding is to cooperate Special undercut structure can select the grinding wheel of larger diameter to carry out machining worm milling cutter, and grinding efficiency is higher；Point mill Worm milling cutter side relief angle can be selected voluntarily, more preferably by optimization design milling tool performance.
In the utility model, described grinding abrasive disk includes disc type grinding wheel body, its axial direction of the outer rim of the disc type grinding wheel body is cut Face shape is the inverted V type acute angle of evagination, and the top of the inverted V type acute angle of the evagination is use in the contour line that circumferencial direction is formed The grinding wheel cutting edge of numerical control point mill is carried out in the tooth form of the cutting tooth to the worm milling cutter.
Preferably, the angle of the inverted V type acute angle of the evagination is 4~15 °.
In order to enhance evagination inverted V type acute angle intensity, can be arranged at the tip of the inverted V type acute angle of evagination small R fillet, while the position of grinding wheel cutting edge being biased according to the numerical value of R radius of corner in numerical control processing worm milling cutter and is set It sets, to guarantee the accuracy of machining locus.
In order to further increase the efficiency of worm milling cutter machining worm, it is preferred that quantity Z >=0.5D of the cutting tooth It is a.
Its cutting tooth of the worm milling cutter of the high-density gear of above-mentioned Z >=0.5D can pass through the point frosted of the appropriate V-type acute angle of selection Wheel completes finishing manufacture.
By the way that the quantity of the cutting tooth of worm milling cutter is increased to Z >=0.5D, so that the worm milling cutter of the utility model The number of teeth compared to traditional its cutting tooth of worm milling cutter increases several times, therefore can significantly improve the efficiency of machining worm, has Conducive to the production efficiency for increasing substantially worm screw production line.
Preferably, the tip diameter of the worm milling cutter is 40~φ of φ 180mm.
Preferably, the anterior angle of the cutting tooth is 0~10 °, and the relief angle of the cutting tooth is 5~15 °, and described adjacent two cut Cutting the cutter groove angle between tooth is 8~25 °.
In the utility model, described grinding abrasive disk is diamond point grinding abrasive disk.
Preferably, the surface of the hard alloy worm milling cutter is equipped with the wear-resistant coating using CVD or PVD method deposition.
Wherein, the CVD method is CVD method, and the PVD method is physical vapor deposition.
It is furthermore preferred that the wear-resistant coating is TiC coating, TiN coating, Al2O3Coating, CrN coating, in TiCN coating It is a kind of.Specifically, corresponding coating can be selected according to the unlike material of worm screw to be processed.
As a further improvement of the utility model, along the back of tooth part for being located at the cutting tooth in the cutting tooth Top surface and two sides position be machined with unfilled corner, to form undercut when described grinding abrasive disk fine grinding flank of tooth.
By being preformed with unfilled corner in the top surface of back of tooth part and two sides position, formed when putting the grinding abrasive disk fine grinding flank of tooth Undercut facilitates the relief grinding using the point grinding abrasive disk progress tooth form of larger size without interfering, to be conducive to improve tooth The quality and relief grinding efficiency of shape relief grinding.
Preferably, the cutting tooth of the facing cutter is distributed as being equally spaced in circumferencial direction.
The cutting tooth of the facing cutter is distributed as Unequal distance in circumferencial direction as a further improvement of the utility model, Distribution, and be provided in the both ends of the surface of the facing cutter for going repeated hole, the duplicate removal to facing cutter progress is dynamically balanced Repeated hole is removed for numerical control electric spark processing in hole.
Above by the dynamically balanced dynamic balancing for going repeated hole to realize facing cutter is arranged, to improve worm screw when machining The stationarity of milling cutter operating, while by the way that the cutting tooth of facing cutter is arranged to unequally distributed blades, be conducive to when worm screw is processed The vibration for inhibiting system of processing, to further increase the suface processing quality of worm screw.
The beneficial effects of the utility model are:
First, a kind of close tooth hard alloy worm milling cutter of the utility model, on the one hand by using grinding abrasive disk and more Shaft and NC Machining Test grinding machine solves the high-precision manufacturing issue of the cutting tooth of close tooth worm milling cutter, on the other hand by by worm milling cutter The processing efficiency that the quantity of cutting tooth is enlarged to Z >=0.3D to improve worm screw, the two mutually cooperate with, which thereby enhance worm screw and add The efficiency and quality of work.
Second, a kind of close tooth hard alloy worm milling cutter of the utility model, by by the number of the cutting tooth of worm milling cutter Amount increases to Z >=0.5D, so that the worm milling cutter of the utility model increases compared to the number of teeth of traditional its cutting tooth of worm milling cutter Add several times, therefore the efficiency of machining worm can be significantly improved, is conducive to the production efficiency for increasing substantially worm screw production line.
A kind of third, close tooth hard alloy worm milling cutter of the utility model, passes through the top surface and two sides in back of tooth part Face position is preformed with unfilled corner, forms the undercut when point grinding abrasive disk fine grinding flank of tooth, facilitates the point frosted using larger size Wheel carries out the relief grinding of tooth form without interfering, to be conducive to improve the quality and relief grinding efficiency of tooth form relief grinding.
Third, a kind of close tooth hard alloy worm milling cutter of the utility model refine cutting tooth, point mill using grinding abrasive disk The processing method advantage of more traditional relief grinding is to cooperate special undercut structure that the grinding wheel of larger diameter can be selected to process Worm milling cutter, and grinding efficiency is higher；The worm milling cutter side relief angle of point mill can be selected voluntarily, pass through optimization design milling tool Performance is more preferably.
5th, a kind of close tooth hard alloy worm milling cutter of the utility model goes repeated hole to realize by the way that setting is dynamically balanced The dynamic balancing of facing cutter to improve the stationarity that worm milling cutter operates when machining, while passing through cutting facing cutter It cuts tooth and is arranged to unequally distributed blades, be conducive to the vibration for inhibiting system of processing when worm screw is processed, to further increase worm screw Suface processing quality.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of close tooth hard alloy worm milling cutter of the utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the structural schematic diagram of a grinding abrasive disk；
Fig. 4 is a kind of fragmentary three-dimensional view of close tooth hard alloy worm milling cutter of the utility model.
In figure: 1, facing cutter, 2, cutting tooth, 3, point grinding abrasive disk, 4, disc type grinding wheel body, 5, the inverted V type acute angle of evagination, 6, sand Take turns cutting edge, 7, unfilled corner.
In figure: α is the anterior angle of cutting tooth, and β is the relief angle of cutting tooth, cutter groove angle of the γ between adjacent two cutting tooth.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model It encloses.
It is as shown in Figures 1 to 4 a kind of embodiment of close tooth hard alloy worm milling cutter of the utility model, including facing cutter 1, along the circumferential direction it is distributed with a number of cutting tooth 2 in the outer circle of the facing cutter 1, the quantity Z of the cutting tooth 2 >= 0.3D, D therein takes the millimeter value of the tip diameter of worm milling cutter, and the cutting tooth 2 is using point grinding abrasive disk 3 and multiaxis Numerically control grinder carries out full flank of tooth fine grinding and the cutting tooth that is formed.
Above-mentioned full flank of tooth fine grinding include to the flank fine grinding of the tooth form fine grinding of cutting tooth, cutting tooth, The rake face fine grinding of cutting tooth.
In above-mentioned technical proposal, close tooth worm screw milling is on the one hand solved by using grinding abrasive disk 3 and multi-axis numerical control grinding machine The high-precision manufacturing issue of the cutting tooth 2 of knife, on the other hand by by the quantity of the cutting tooth 2 of worm milling cutter be enlarged to Z >= A processing efficiency to improve worm screw of 0.3D, the two mutually cooperate with, and which thereby enhance the efficiency and quality of worm screw processing.
The present embodiment refines cutting tooth using point grinding abrasive disk, and the processing method advantage that point grinds more traditional relief grinding is to cooperate special Different undercut structure can select the grinding wheel of larger diameter to carry out machining worm milling cutter, and grinding efficiency is higher；The snail of point mill Bar milling cutter side relief angle can be selected voluntarily, more preferably by optimization design milling tool performance.
In the present embodiment, described grinding abrasive disk 3 includes disc type grinding wheel body 4, its axial direction of the outer rim of the disc type grinding wheel body 4 is cut Face shape is the inverted V type acute angle 5 of evagination, and the top of the inverted V type acute angle 5 of the evagination is in the contour line that circumferencial direction is formed The grinding wheel cutting edge 6 of numerical control point mill is carried out for the tooth form of the cutting tooth 2 to the worm milling cutter.
Preferably, the angle of the inverted V type acute angle 5 of the evagination is 4~15 °.
In order to enhance evagination inverted V type acute angle intensity, can be arranged at the tip of the inverted V type acute angle of evagination small R fillet, while the position of grinding wheel cutting edge being biased according to the numerical value of R radius of corner in numerical control processing worm milling cutter and is set It sets, to guarantee the accuracy of machining locus.
In order to further increase the efficiency of worm milling cutter machining worm, the quantity of the cutting tooth 2 Z >=0.5D.
Its cutting tooth 2 of the worm milling cutter of the high-density gear of above-mentioned Z >=0.5D can pass through the point frosted of the appropriate V-type acute angle of selection Wheel completes finishing manufacture.
By the way that the quantity of the cutting tooth 2 of worm milling cutter is increased to Z >=0.5D, so that the worm milling cutter phase of the present embodiment The number of teeth than traditional worm milling cutter its cutting tooth 2 increases several times, therefore can significantly improve the efficiency of machining worm, favorably In the production efficiency for increasing substantially worm screw production line.
Preferably, the tip diameter of the worm milling cutter is 40~φ of φ 180mm.
Preferably, the anterior angle α of the cutting tooth is 0~10 °, and the rear angle beta of the cutting tooth is 5~15 °, described adjacent two Cutter groove angle γ between cutting tooth is 8~25 °.
In the present embodiment, described grinding abrasive disk 3 is diamond point grinding abrasive disk.
Preferably, the surface of the hard alloy worm milling cutter is equipped with the wear-resistant coating using CVD or PVD method deposition.
Wherein, the CVD method is CVD method, and the PVD method is physical vapor deposition.
It is furthermore preferred that the wear-resistant coating is TiC coating, TiN coating, Al2O3Coating, CrN coating, in TiCN coating It is a kind of.Specifically, corresponding coating can be selected according to the unlike material of worm screw to be processed.
As a further improvement of the utility model, along the back of tooth portion for being located at the cutting tooth 2 in the cutting tooth 2 The top surface and two sides position divided are machined with unfilled corner, to form undercut when described grinding abrasive disk 3 refines the flank of tooth.
By being preformed with unfilled corner in the top surface of back of tooth part and two sides position, when forming the point fine grinding flank of tooth of grinding abrasive disk 3 Undercut, facilitate using larger size point grinding abrasive disk 3 carry out tooth form relief grinding without interfering, to be conducive to improve The quality and relief grinding efficiency of tooth form relief grinding.
Preferably, the cutting tooth 2 of the facing cutter 1 is distributed as being equally spaced in circumferencial direction.
As further improvement of this embodiment, the cutting tooth 2 of the facing cutter 1 is distributed as Unequal distance in circumferencial direction Distribution, and be provided in the both ends of the surface of the facing cutter 1 for carrying out dynamically balanced removing repeated hole (in figure not to the facing cutter 1 Draw), it is described that repeated hole is gone to remove repeated hole for numerical control electric spark processing.
Above by the dynamically balanced dynamic balancing for going repeated hole to realize facing cutter 1 is arranged, to improve snail when machining The stationarity of bar milling cutter operating, while by the way that the cutting tooth 2 of facing cutter 1 is arranged to unequally distributed blades, be conducive to add in worm screw Working hour inhibits the vibration of system of processing, to further increase the suface processing quality of worm screw.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into retouching.

Claims (10)

1. a kind of close tooth hard alloy worm milling cutter, which is characterized in that including facing cutter, in the outer circle of the facing cutter circumferentially Directional spreding has a number of cutting tooth, and the quantity of cutting tooth Z >=0.3D, D therein takes the tooth top of worm milling cutter The millimeter value of circular diameter, the cutting tooth are to carry out full flank of tooth fine grinding using point grinding abrasive disk and multi-axis numerical control grinding machine and formed Cutting tooth.
2. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that described grinding abrasive disk include Disc type grinding wheel body, its axial cross section shape of the outer rim of the disc type grinding wheel body be evagination inverted V type acute angle, and the evagination fall The top of V-type acute angle is in the tooth form progress numerical control that the contour line that circumferencial direction is formed is for the cutting tooth to the worm milling cutter The grinding wheel cutting edge of point mill.
3. a kind of close tooth hard alloy worm milling cutter according to claim 2, which is characterized in that the inverted V type of the evagination The angle of acute angle is 4~15 °.
4. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that the quantity of the cutting tooth Z >=0.5D.
5. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that the tooth of the worm milling cutter Outside diameter circle is 40~φ of φ 180mm.
6. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that the anterior angle of the cutting tooth It is 0~10 °, the relief angle of the cutting tooth is 5~15 °, and the cutter groove angle between adjacent two cutting tooth is 8~25 °.
7. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that described grinding abrasive disk is gold Hard rock point grinding abrasive disk, the surface of the hard alloy worm milling cutter are equipped with the wear-resistant coating using CVD or PVD method deposition.
8. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that the edge in the cutting tooth Be machined with unfilled corner positioned at the top surface of the back of tooth part of the cutting tooth and two sides position, to form the fine grinding of described grinding abrasive disk The undercut when flank of tooth.
9. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that the cutting of the facing cutter Tooth is distributed as being equally spaced circumferencial direction.
10. a kind of close tooth hard alloy worm milling cutter according to claim 1, which is characterized in that the facing cutter is cut Tooth is cut to be provided in the unequally distributed blades that are distributed as of circumferencial direction, and in the both ends of the surface of the facing cutter for the facing cutter Carry out it is dynamically balanced remove repeated hole, it is described that remove repeated hole be that repeated hole is removed in numerical control electric spark processing.
CN201821418006.0U 2018-08-31 2018-08-31 A kind of close tooth hard alloy worm milling cutter Active CN209021307U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821418006.0U CN209021307U (en) 2018-08-31 2018-08-31 A kind of close tooth hard alloy worm milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821418006.0U CN209021307U (en) 2018-08-31 2018-08-31 A kind of close tooth hard alloy worm milling cutter

Publications (1)

Publication Number Publication Date
CN209021307U true CN209021307U (en) 2019-06-25

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ID=66876584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821418006.0U Active CN209021307U (en) 2018-08-31 2018-08-31 A kind of close tooth hard alloy worm milling cutter

Country Status (1)

Country Link
CN (1) CN209021307U (en)

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