CN204413183U - A kind of rotary machining tool - Google Patents
A kind of rotary machining tool Download PDFInfo
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- CN204413183U CN204413183U CN201520052232.1U CN201520052232U CN204413183U CN 204413183 U CN204413183 U CN 204413183U CN 201520052232 U CN201520052232 U CN 201520052232U CN 204413183 U CN204413183 U CN 204413183U
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Abstract
The utility model discloses a kind of rotary machining tool, comprise cutter hub, cutting tip and blade fastener, described cutter hub outer offers cutter groove, described cutting tip is arranged in described cutter groove by described blade fastener, described cutter groove offers through hole on the bottom surface, location of cutting tip radial location, the region described cutter hub is positioned at inside bottom surface, location offers holding tank, described rotary machining tool also comprises locking reinforcement, described locking reinforcement is installed in described holding tank, described blade fastener one end connects described cutting tip, the other end is connected with described locking reinforcement with through described through hole, it is simple that rotary machining tool of the present utility model has structure, High Rotation Speed processing can be realized and the advantage such as safe and reliable.
Description
Technical field
The utility model relates to metal cutting process field, particularly relates to a kind of rotary machining tool.
Background technology
Rotate in class cutting tool working angles, the high-speed cutting of linear velocity between 1000m/min ~ 5000m/min can improve working (machining) efficiency greatly, because common cutter material (being generally steel) density is larger, high-speed cutting adds man-hour, especially, when the external diameter of cutting tool is larger, cutter rotates the revolution load greatly increasing main shaft when lathe starts.In this external high-speed machining process, eccentric mass produces larger uneven centrifugal force, in order to reduce uneven centrifugal force, need the eccentric mass reducing the relative centre of gyration of cutting tool, cutter body generally adopts the less material of density (being generally aluminium alloy), more common cutter material is compared, it is little that such material has density, intensity is low, the feature that hardness is low and not wear-resisting, bending strength due to aluminium alloy only has 1/4 ~ 1/2 of ordinary cutting tool material, utilize internal thread clamping blade or cutter holder that cutter hub studs with, due to stress fatigue, screw thread is easily damaged, affect cutter life, in order to improve cutter life, cutter hub internal thread must be avoided directly to match with blade or the cutter holder of installing blade.
A kind of structure known in current High-speed machining field, be made up of aluminium alloy cutter body, the cutter holder installing blade, voussoir, voussoir securing member, cutter hub is provided with one group of cutter groove, cutter holder and voussoir are installed in cutter groove, voussoir is provided with screwed hole, and securing member to be installed in screwed hole and to be compressed by cutter holder.This kind of structure Shortcomings is: because effective contact area of securing member and cutter holder is little, Long-Time Service easily causes endurance failure, when the breakage of cutter hub upper screwed hole makes screw thread deficiency provide the thrust of securing member and come off, securing member easily flies out at a high speed under the influence of centrifugal force, causes very large threat to operating personnel; Cutter annex kind is many, not manageability.
Utility model content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, provide a kind of structure simple, High Rotation Speed processing can be realized and safe and reliable rotary machining tool.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of rotary machining tool, comprise cutter hub, cutting tip and blade fastener, described cutter hub outer offers cutter groove, described cutting tip is arranged in described cutter groove by described blade fastener, described cutter groove offers through hole on the bottom surface, location of cutting tip radial location, the region described cutter hub is positioned at inside bottom surface, location offers holding tank, described rotary machining tool also comprises locking reinforcement, described locking reinforcement is installed in described holding tank, described blade fastener one end connects described cutting tip, the other end is connected with described locking reinforcement with through described through hole.
Further improvement as technique scheme:
Described blade fastener is trip bolt, described locking reinforcement offers the locking screw pit with the concentricity line of described through hole, described trip bolt head holds described cutting tip, and afterbody is threaded with described locking screw pit through the centre bore of described cutting tip and described through hole.
Described locking reinforcement is the straight pin with described holding tank interference fit.
Described through hole is the screwed hole coordinated with described trip bolt.
The central axis of described straight pin and described rotary machining tool centerline axis parallel.
The center line of the centre bore of described cutting tip and the centerline parallel of described locking screw pit and there is distance D.
First side, location of described cutter groove is α with the angle of bottom surface, location, and the second side, location of described cutter groove is β with the angle of bottom surface, location, and 65 °≤α≤80 °, 65 °≤β≤80 °.
Described cutter hub is aluminium alloy cutter hub, and described locking reinforcement is steel alloy straight pin.
Compared with prior art, the utility model has the advantage of:
Rotary machining tool of the present utility model, cutter hub offers holding tank, locking reinforcement is equiped with in holding tank, blade fastener is connected with locking reinforcement through the through hole on cutter hub, thus cutting tip is fixedly installed in cutter groove, in working angles, cutting tip mainly relies on the connection of blade fastener and locking reinforcement to realize the fixing and locking in cutter groove, and lock reinforcement with the face that is that contacts of blade fastener and cutter hub and contact, solve blade fastener when cutter hub in prior art adopts the less material of aluminium alloy isodensity to make to be threaded with cutter hub the problem of bonding strength deficiency, therefore, the material that the cutter hub of the utility model rotary machining tool can adopt aluminium alloy isodensity less makes, locking reinforcement adopts intensity and hardness all to make higher than the material of cutter hub, therefore rotary machining tool of the present utility model is applicable to High Rotation Speed processing, ensure that the installation strength of cutting tip on cutter hub and reliability, blade fastener and cutting tip is prevented to be thrown out of under the influence of centrifugal force.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the utility model rotary machining tool.
Fig. 2 is the sectional perspective structure chart of the cutter hub of the utility model rotary machining tool.
Fig. 3 is the A direction view of Fig. 2.
Fig. 4 is the B-B profile of Fig. 3.
Fig. 5 is the C-C profile of Fig. 3.
Fig. 6 is the three-dimensional structure diagram of the cutting tip of the utility model rotary machining tool.
In figure, each label represents:
1, cutter hub; 2, cutting tip; 21, centre bore; 3, blade fastener; 4, cutter groove; 41, the first side, location; 42, the second side, location; 43, bottom surface is located; 5, holding tank; 6, reinforcement is locked; 61, locking screw pit; 7, through hole.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
Fig. 1 to Fig. 6 shows a kind of embodiment of the utility model rotary machining tool, this rotary machining tool comprises cutter hub 1, cutting tip 2 and blade fastener 3, cutter hub 1 outer offers cutter groove 4, cutting tip 2 is arranged in cutter groove 4 by blade fastener 3, bottom surface, location 43 for cutting tip 2 radial location offers through hole 7 to cutter groove 4, region cutter hub 1 is positioned at inside bottom surface 43, location offers holding tank 5, rotary machining tool also comprises locking reinforcement 6, locking reinforcement 6 is installed in holding tank 5, blade fastener 3 one end connects cutting tip 2, the other end is connected with locking reinforcement 6 with through through hole 7, cutter hub 1 is offered holding tank 5, locking reinforcement 6 is equiped with in holding tank 5, blade fastener 3 is passed the through hole 7 on cutter hub 1 and is connected with locking reinforcement 6, thus cutting tip 2 is fixedly installed in cutter groove 4, in working angles, cutting tip 2 mainly relies on the connection of blade fastener 3 and locking reinforcement 6 to realize the fixing and locking in cutter groove 4, and lock reinforcement 6 and blade fastener 3 with the face that is that contacts of cutter hub 1 and contact, solve the problem of blade fastener 3 and the bonding strength deficiency that is threaded of cutter hub 1 when cutter hub 1 in prior art adopts the less material of aluminium alloy isodensity to make, therefore, the material that the cutter hub 1 of the rotary machining tool of the present embodiment can adopt aluminium alloy isodensity less makes, locking reinforcement 6 adopts intensity and hardness all to make higher than the material of cutter hub, blade fastener 3 and high strength, the locking reinforcement 6 of high rigidity connects, stable connection is reliable, therefore the rotary machining tool of the present embodiment is applicable to High Rotation Speed processing, ensure that the installation strength of cutting tip 2 on cutter hub 1 and reliability, blade fastener 3 and cutting tip 2 is prevented to be thrown out of under the influence of centrifugal force.
In the present embodiment, blade fastener 3 is trip bolt, locking reinforcement 6 offers the locking screw pit 61 with the concentricity line of through hole 7, trip bolt head holds cutting tip 2, afterbody is threaded with locking screw pit 61 through the centre bore 21 of cutting tip 2 and through hole 7, and bonding strength is high and be convenient to the dismounting of cutting tip 2.
In the present embodiment, locking reinforcement 6 is the straight pin with holding tank 5 interference fit, and structure is simple, is convenient to processing.
In the present embodiment, through hole 7 is the screwed hole coordinated with trip bolt, and blade fastener 3 and through hole 7 are also threaded engagement, are convenient to the location of cutting tip 2.
In the present embodiment, the central axis of straight pin and rotary machining tool centerline axis parallel, the center line of locking screw pit 61 and rotary machining tool central axis upright, namely straight pin is arranged along the axis of rotary machining tool, and trip bolt is arranged along the radial direction of rotary machining tool.
In the present embodiment, the center line of the centre bore 21 of cutting tip 2 and the centerline parallel of locking screw pit 61 and have distance D, blade fastener 3 is by the side surface locking cutting tip 2 of center squeezing 21.
First side, location 41 of cutter groove 4 is α with the angle of bottom surface 43, location, second side, location 42 of cutter groove 4 is β with the angle of bottom surface 43, location, and 65 °≤α≤80 °, 65 °≤β≤80 °, in the present embodiment, α=β=70 °, namely side 42 is located except the lateral register effect to cutting tip 2 in the first side, location 41 and second of cutter groove 4, also the radial forces pointing to rotary machining tool center line is applied to cutting tip 2, be conducive to the fastening of cutting tip 2, in addition fracture as blade fastener 3 head is sheared in working angles, also the effect preventing cutting tip 2 from flying out can be played.
In the present embodiment, cutter hub 1 is aluminium alloy cutter hub, locking reinforcement 6 be steel alloy straight pin, the uneven centrifugal force adopting aluminium alloy cutter hub can reduce High Rotation Speed to add man-hour, adopts the installation strength of steel alloy straight pin guarantee cutting tip 2 on cutter hub 1 and reliability.
Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Any those of ordinary skill in the art, when not departing from technical solutions of the utility model scope, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (8)
1. a rotary machining tool, comprise cutter hub (1), cutting tip (2) and blade fastener (3), described cutter hub (1) outer offers cutter groove (4), described cutting tip (2) is arranged in described cutter groove (4) by described blade fastener (3), it is characterized in that: described cutter groove (4) is for the bottom surface, location (43) of cutting tip (2) radial location offers through hole (7), the region described cutter hub (1) being positioned at inner side, bottom surface, location (43) offers holding tank (5), described rotary machining tool also comprises locking reinforcement (6), described locking reinforcement (6) is installed in described holding tank (5), described blade fastener (3) one end connects described cutting tip (2), the other end is connected with described locking reinforcement (6) with through described through hole (7).
2. rotary machining tool according to claim 1, it is characterized in that: described blade fastener (3) is trip bolt, described locking reinforcement (6) offers the locking screw pit (61) with described through hole (7) concentricity line, described trip bolt head holds described cutting tip (2), and afterbody is threaded with described locking screw pit (61) through the centre bore (21) of described cutting tip (2) and described through hole (7).
3. rotary machining tool according to claim 1 and 2, is characterized in that: described locking reinforcement (6) is the straight pin with described holding tank (5) interference fit.
4. rotary machining tool according to claim 2, is characterized in that: described through hole (7) is the screwed hole coordinated with described trip bolt.
5. rotary machining tool according to claim 3, is characterized in that: the central axis of described straight pin and described rotary machining tool centerline axis parallel.
6. rotary machining tool according to claim 2, is characterized in that: the center line of the centre bore (21) of described cutting tip (2) and the centerline parallel of described locking screw pit (61) and have distance D.
7. rotary machining tool according to claim 1 and 2, it is characterized in that: the first side, location (41) of described cutter groove (4) is α with the angle of bottom surface, location (43), second side, location (42) of described cutter groove (4) is β with the angle of bottom surface, location (43), and 65 °≤α≤80 °, 65 °≤β≤80 °.
8. rotary machining tool according to claim 1 and 2, is characterized in that: described cutter hub (1) is aluminium alloy cutter hub, and described locking reinforcement (6) is steel alloy straight pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052232.1U CN204413183U (en) | 2015-01-26 | 2015-01-26 | A kind of rotary machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052232.1U CN204413183U (en) | 2015-01-26 | 2015-01-26 | A kind of rotary machining tool |
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| Publication Number | Publication Date |
|---|---|
| CN204413183U true CN204413183U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520052232.1U Active CN204413183U (en) | 2015-01-26 | 2015-01-26 | A kind of rotary machining tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328224A (en) * | 2015-11-17 | 2016-02-17 | 株洲钻石切削刀具股份有限公司 | Rotary machining cutter |
| CN106975780A (en) * | 2017-03-30 | 2017-07-25 | 株洲钻石切削刀具股份有限公司 | A kind of milling cutter having from substrate hold-down function |
-
2015
- 2015-01-26 CN CN201520052232.1U patent/CN204413183U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328224A (en) * | 2015-11-17 | 2016-02-17 | 株洲钻石切削刀具股份有限公司 | Rotary machining cutter |
| CN105328224B (en) * | 2015-11-17 | 2017-12-26 | 株洲钻石切削刀具股份有限公司 | Rotary machining tool |
| CN106975780A (en) * | 2017-03-30 | 2017-07-25 | 株洲钻石切削刀具股份有限公司 | A kind of milling cutter having from substrate hold-down function |
| CN106975780B (en) * | 2017-03-30 | 2018-11-06 | 株洲钻石切削刀具股份有限公司 | A kind of milling cutter having from substrate hold-down function |
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