CN204893100U - Spline machining cutter device in little modulus blind hole - Google Patents
Spline machining cutter device in little modulus blind hole Download PDFInfo
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- CN204893100U CN204893100U CN201520487537.5U CN201520487537U CN204893100U CN 204893100 U CN204893100 U CN 204893100U CN 201520487537 U CN201520487537 U CN 201520487537U CN 204893100 U CN204893100 U CN 204893100U
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Abstract
The utility model provides a spline machining cutter device in little modulus blind hole. The device is opened bottom the blade holder body to be had navigation key piece groove and is equipped with the navigation key piece at the inslot, and cutter location dog is equipped with to the one side on blade holder body upper portion to it is connected to personally experience sth. Part of the body with the blade holder with the dog locking bolt, and open on blade holder body upper portion has tool slots and be equipped with the cutter, and the cutter clamp plate is pushed down for the cutter, and reuse clamp plate locking bolt is fixed on the blade holder body, and it is fixed that the cutter passes through the cutter locking bolt, and blade holder body and function blade holder locking bolt is fixed on the processing equipment. The processing method goes on according to the following steps: 1, the installation of the cutter and the blade holder body, 2, when high parameter adjustment, 3, the parameter sets up, 4, work piece processing. This method has been solved the conventional art and has been adopted generate gear shaping method etc. And machining efficiency is low, the high scheduling problem of the cost of charp tool, uses the spline after the processing of the device and method for, and the axiality is good, and the precision is high, and it is convenient that excellent interval is adjusted through the numerical control, does benefit to mass production.
Description
Technical field
The utility model relates to field of machining, is related specifically to a kind of low module blind hole inner spline process tool device.
Background technology
EPS steering column widely uses the structure that a kind of motor with external splines connecting axle is connected with the worm screw of band internal spline, and precision-fit is in order to transmit the moment of torsion of motor.But when electric machine rotation, by the impact of parts manufacture and installation accuracy, cause following defect:
1, internal spline gear ring is greatly processed, produces abnormal sound after assembling, and mating surface stressed after have the risk of skidding;
2, internal spline gear ring is processed little, and position error is excessive, rotates dumb, cause stuck after assembling.
At present, the processing of existing accurate blind hole inner spline is in the following way many:
Method one, generate gear shaping method, cutter sketch as shown in Figure 8 and Figure 9.
The method processing internal tooth needs the shaping machine of use standard, add man-hour cutting tool and not only will complete the gear shaping action of feed withdrawing, and cutter will do relative generating motion with workpiece after completing a gear shaping.
Method two, global formation tooth pushing method.
The cutter of the method is close with generate pinion cutter, and the profile of tooth of cutter is the same with blind hole inner spline geomery, uses the forcing press of 10 tonnages, is disposablely firmly pushed in the blind hole of workpiece by cutter, removes unnecessary material.As shown in Figure 10, Figure 11, in figure, 17 is workpiece, and 18 is push broach head.
Method three, mould forging method.
The method before profile, adopts shaping mould in the Vehicle Processing of part blank initial stage, and internal spline is extruded by cold forging or forge hot.
But above method all has following defect:
1, method one is because will do generating motion, and its working (machining) efficiency is low, and Tool Design difficulty is large, manufacturing cost is high, adds man-hour cutter root superfine, processing rigidity extreme difference, dimensional stability extreme difference.
Although 2, method two global formation tooth pushing method uses forcing press to improve operating efficiency, but the unnecessary iron pin removed is deposited in workpiece blind hole to become to be integrated cannot get rid of with workpiece, for subsequent treatment adds great difficulty, and because of discontinuity during tooth pushing, instability causes tooth-face roughness extreme difference, profile of tooth position form accuracy extreme difference.
Although 3, method three mould forging method also improves production efficiency, because the too little die head of endoporus is very easily out of shape, weares and teares, fractures, consuming cost is also very big, and too increases the uncertainty of follow-up internal spline and Vehicle Processing cylindrical positional precision.
How to improve machining accuracy and the efficiency of low module blind hole inner spline, the improvement of its process tool device and processing method becomes raises the efficiency, and reduces the key point of single-piece manufacturing cost.
Summary of the invention
The purpose of this utility model is to provide a kind of low module blind hole inner spline process tool device and processing method, and its object is the effective problem that efficiency is low, low precision, cost are high solving traditional generate gear shaping method and produce.
For achieving the above object, the technical solution of the utility model is:
A kind of low module blind hole inner spline process tool device, comprise tool post, tool rest clamping screw, positioning key block, cutter positioning block, block clamping screw, cutter pressing plate, cutter clamping screw, cutter and pressing plate clamping screw, described device has positioning key block groove and at groove built with positioning key block bottom tool post, cutter positioning block is equipped with in the side on tool post top, cutter positioning block block clamping screw is connected with tool post, tool post top has cutter groove, cutter groove is built with cutter, cutter is pushed down by cutter clamping screw, cutter clamping screw is contained in cutter pressing plate, cutter pressing plate pressing plate clamping screw is fixed on tool post, tool post tool rest clamping screw is fixed on process equipment.
The cutter head of described cutter circumferentially only has a single cutter tooth, rake face and the main rear knife face of cutter tooth form the angle of 84-90 °, the intersection on two sides forms main cutting edge, the intersection of rake face and minor flank forms front cutting edge, knife bar has plane of orientation by cutter bottom surface place, the position relationship that plane of orientation becomes to fix with cutter tooth, plane of orientation contacts with cutter groove when cutter loads tool post, and holds out against fixing with cutter clamping screw.
A processing method for low module blind hole inner spline, described processing method follows these steps to carry out:
1, the installation of cutter and tool post:
Tool post is axially accurately positioned on process equipment by positioning key block, after correcting tool rest datum plane and tool rest benchmark bottom surface with amesdial, by tool rest clamping screw, tool post is fixed on process equipment, according to the knife bar of cutter, plane of orientation and cutter bottom surface, by tool rest groove side, tool rest groove bottom and cutter positioning block, cutter is accurately positioned in tool rest groove, finally push down with cutter clamping screw, now, form the angle of 2-3 ° between tool rest groove bottom and tool rest datum plane, and the rear operator face of cutter and tool rest datum level form the relief angle of 2-3 °;
2, etc. high parameter regulates: before processing, after fixing workpiece, uses the servo z-axis on numerical control bed, adjustment center cutter line height < 0.01mm poor with workpiece centre level;
3, optimum configurations: by the computer of Tool advance, cutting, withdrawing, return, circulation track, cycle-index parameters input Digit Control Machine Tool;
4, work pieces process: add man-hour, by programme-control servo x-axis and the servo z-axis of Digit Control Machine Tool, with 2500-3000mm/min speed high-speed cruising, complete the full-depth tooth feed of a workpiece, cutting, withdrawing and return process, above-mentioned four actions form a rectilinear path movement locus, 4-6 the complete holotype tooth of rectangle cyclic process, after wherein completing a rectangle circulation, the position of next rectangle circulation feed increases progressively 0.05-0.15mm forward, in rectangle cyclic process, cutter not with workpiece generation relative rotary motion, do not do generating motion, after processing a holotype tooth, the rotating servo A axle of Digit Control Machine Tool, workpiece is driven to rotate the 360 °/number of teeth, locate the Working position of next tooth, repeat above-mentioned rectangle cyclic process process.
Good effect of the present utility model is:
1, this method solve conventional art and adopt generate gear shaping method etc., the problems such as working (machining) efficiency is low, the cost of charp tool is high;
2, the spline after using these apparatus and method to process, axiality is good, and precision is high, and interrod spacing is easy to adjust by numerical control, is beneficial to production in enormous quantities.
Accompanying drawing explanation
Fig. 1, low module blind hole inner spline process tool apparatus structure schematic diagram;
Fig. 2, low module blind hole inner spline process tool device top view;
Fig. 3, low module blind hole inner spline process tool device sectional view;
Fig. 4, cutter structure schematic diagram;
Fig. 5, tool post sectional view;
Fig. 6, tool post top view;
The main sectional view of Fig. 7, tool post;
Fig. 8, existing generate gear shaping method cutter front view;
Fig. 9, existing generate gear shaping method cutter upward view;
Figure 10, existing global formation tooth pushing method workpiece schematic diagram;
Figure 11, existing global formation tooth pushing method push broach head schematic diagram.
Detailed description of the invention
Detailed description of the invention of the present utility model is further illustrated below in conjunction with accompanying drawing 1-7.
Embodiment one
See Fig. 1-7
1, the installation of cutter and tool post: tool post 1 is axially accurately positioned on process equipment by the locating piece 3 be contained in positioning key block groove 14, behind the tool rest datum plane 12 on amesdial correction tool post 1 and tool rest benchmark bottom surface 13, by tool rest clamping screw 2, tool post 1 is fixed on process equipment, with block clamping screw 5, cutter positioning block 4 is fixed on tool post 1, cutter 8 is put into tool rest groove 10, plane of orientation 8-7 on knife bar 8-6 contacts with tool rest groove bottom 11, cutter bottom surface 8-8 contacts with position block 4, now by tool rest groove side 15, cutter 8 is accurately positioned in tool rest groove 10 by tool rest groove bottom 11 and cutter positioning block 4, and pushed down by cutter clamping screw 7, cutter clamping screw is arranged on cutter pressing plate 6, by pressing plate clamping screw 9, cutter pressing plate is locked on tool post 1, now, the angle of 2 ° is formed between tool rest groove bottom 11 and tool rest datum plane 12, and between the rear operator face 8-4 of cutter 8 and tool rest datum plane 12, form the relief angle of 2 °.
2, etc. high parameter regulates: before processing, after fixing workpiece, uses the servo z-axis on Digit Control Machine Tool, adjustment cutter 8 center line height < 0.01mm poor with workpiece centre level;
3, optimum configurations: the feed of cutter 8, cutting, withdrawing, return, circulation track, cycle-index and workpiece are rotated the parameters input such as the number of teeth in the computer of Digit Control Machine Tool;
4, work pieces process: by programme-control servo x-axis and the servo z-axis of Digit Control Machine Tool, with 2500mm/min speed high-speed cruising, complete the feed of the full-depth tooth of a workpiece, cutting, withdrawing and return process, above-mentioned four actions form a rectilinear path movement locus, the circulation of 4 rectangles is gone out the processing of a holotype tooth, after completing a rectangle circulation, the access site of next rectangle circulation increases progressively 0.05mm forward, in rectangle cyclic process, cutter 8 not with workpiece generation relative rotary motion, do not do generating motion.
Add man-hour, main cutting task is served as by the main cutting edge 8-3 on rake face 8-1 and front cutting edge 8-2, by tool rest bottom surface 8-8, cutting force is delivered on cutter positioning block 4, is finally dispersed on the lathe bed of process equipment, make processing profile of tooth and cutter tooth-profile completely the same.And knife face 8-4 and minor flank 8-5 has certain thickness after the master of cutter 8, can repeatedly regrinding after using.
Embodiment two
See Fig. 1-7
1, the installation of cutter and tool post: tool post 1 is axially accurately positioned on process equipment by the locating piece 3 be contained in positioning key block groove 14, behind the tool rest datum plane 12 on amesdial correction tool post 1 and tool rest benchmark bottom surface 13, by tool rest clamping screw 2, tool post 1 is fixed on process equipment, with block clamping screw 5, cutter positioning block 4 is fixed on tool post 1, cutter 8 is put into tool rest groove 10, plane of orientation 8-7 on knife bar 8-6 contacts with tool rest groove bottom 11, cutter bottom surface 8-8 contacts with position block 4, now by tool rest groove side 15, cutter 8 is accurately positioned in tool rest groove 10 by tool rest groove bottom 11 and cutter positioning block 4, and pushed down by cutter clamping screw 7, cutter clamping screw is arranged on cutter pressing plate 6, by pressing plate clamping screw 9, cutter pressing plate is locked on tool post 1, now, the angle of 3 ° is formed between tool rest groove bottom 11 and tool rest datum plane 12, and between the rear operator face 8-4 of cutter 8 and tool rest datum plane 12, form the relief angle of 3 °.
2, etc. high parameter regulates: before processing, after fixing workpiece, uses the servo z-axis on Digit Control Machine Tool, adjustment cutter 8 center line height < 0.01mm poor with workpiece centre level;
3, optimum configurations: the feed of cutter 8, cutting, withdrawing, return, circulation track, cycle-index and workpiece are rotated the parameters input such as the number of teeth in the computer of Digit Control Machine Tool;
4, work pieces process: by programme-control servo x-axis and the servo z-axis of Digit Control Machine Tool, with 2800mm/min speed high-speed cruising, complete the feed of the full-depth tooth of a workpiece, cutting, withdrawing and return process, above-mentioned four actions form a rectilinear path movement locus, the circulation of 5 rectangles is gone out the processing of a holotype tooth, after completing a rectangle circulation, the access site of next rectangle circulation increases progressively 0.10mm forward, in rectangle cyclic process, cutter 8 not with workpiece generation relative rotary motion, do not do generating motion.
Add man-hour, main cutting task is served as by the main cutting edge 8-3 on rake face 8-1 and front cutting edge 8-2, by tool rest bottom surface 8-8, cutting force is delivered on cutter positioning block 4, is finally dispersed on the lathe bed of process equipment, make processing profile of tooth and cutter tooth-profile completely the same.And knife face 8-4 and minor flank 8-5 has certain thickness after the master of cutter 8, can repeatedly regrinding after using.
Embodiment three
See Fig. 1-7
1, the installation of cutter and tool post: tool post 1 is axially accurately positioned on process equipment by the locating piece 3 be contained in positioning key block groove 14, behind the tool rest datum plane 12 on amesdial correction tool post 1 and tool rest benchmark bottom surface 13, by tool rest clamping screw 2, tool post 1 is fixed on process equipment, with block clamping screw 5, cutter positioning block 4 is fixed on tool post 1, cutter 8 is put into tool rest groove 10, plane of orientation 8-7 on knife bar 8-6 contacts with tool rest groove bottom 11, cutter bottom surface 8-8 contacts with position block 4, now by tool rest groove side 15, cutter 8 is accurately positioned in tool rest groove 10 by tool rest groove bottom 11 and cutter positioning block 4, and pushed down by cutter clamping screw 7, cutter clamping screw is arranged on cutter pressing plate 6, by pressing plate clamping screw 9, cutter pressing plate is locked on tool post 1, now, the angle of 3 ° is formed between tool rest groove bottom 11 and tool rest datum plane 12, and between the rear operator face 8-4 of cutter 8 and tool rest datum plane 12, form the relief angle of 3 °.
2, etc. high parameter regulates: before processing, after fixing workpiece, uses the servo z-axis on Digit Control Machine Tool, adjustment cutter 8 center line height < 0.01mm poor with workpiece centre level;
3, optimum configurations: the feed of cutter 8, cutting, withdrawing, return, circulation track, cycle-index and workpiece are rotated the parameters input such as the number of teeth in the computer of Digit Control Machine Tool;
4, work pieces process: by programme-control servo x-axis and the servo z-axis of Digit Control Machine Tool, with 3000mm/min speed high-speed cruising, complete the feed of the full-depth tooth of a workpiece, cutting, withdrawing and return process, above-mentioned four actions form a rectilinear path movement locus, the circulation of 6 rectangles is gone out the processing of a holotype tooth, after completing a rectangle circulation, the access site of next rectangle circulation increases progressively 0.15mm forward, in rectangle cyclic process, cutter 8 not with workpiece generation relative rotary motion, do not do generating motion.
Add man-hour, main cutting task is served as by the main cutting edge 8-3 on rake face 8-1 and front cutting edge 8-2, by tool rest bottom surface 8-8, cutting force is delivered on cutter positioning block 4, is finally dispersed on the lathe bed of process equipment, make processing profile of tooth and cutter tooth-profile completely the same.And knife face 8-4 and minor flank 8-5 has certain thickness after the master of cutter 8, can repeatedly regrinding after using.
The above is only non-limiting embodiment of the present invention; for the person of ordinary skill of the art; do not departing from the invention design with under the prerequisite of not making creative work, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. a low module blind hole inner spline process tool device, comprise tool post (1), tool rest clamping screw (2), positioning key block (3), cutter positioning block (4), block clamping screw (5), cutter pressing plate (6), cutter clamping screw (7), cutter (8) and pressing plate clamping screw (9), it is characterized in that: described device has positioning key block groove (14) and at groove built with positioning key block (3) in tool post (1) bottom, cutter positioning block (4) is equipped with in the side on tool post (1) top, cutter positioning block (4) block clamping screw (5) is connected with tool post (1), tool post (1) top has cutter groove (10), cutter groove (10) is built with cutter (8), cutter (8) cutter pressing plate (6) is pushed down, pressing plate clamping screw (9) is used to be fixed on tool post (1) by cutter pressing plate (6) again, cutter (8) is fixed by cutter clamping screw (7), tool post (1) tool rest clamping screw (2) is fixed on process equipment.
2. low module blind hole inner spline process tool device according to claim 1, it is characterized in that: the cutter head of described cutter (8) circumferentially only has a single cutter tooth, rake face (8-1) and the main rear knife face (8-4) of cutter tooth form the angle of 84-90 °, the intersection on two sides forms main cutting edge (8-3), rake face (8-1) forms front cutting edge (8-2) with the intersection of minor flank (8-5), knife bar (8-6) has plane of orientation (8-7) by cutter bottom surface (8-8) place, plane of orientation (8-7) contacts with cutter groove (10) when cutter (8) loads tool post (1), and hold out against fixing with cutter clamping screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487537.5U CN204893100U (en) | 2015-07-08 | 2015-07-08 | Spline machining cutter device in little modulus blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487537.5U CN204893100U (en) | 2015-07-08 | 2015-07-08 | Spline machining cutter device in little modulus blind hole |
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| Publication Number | Publication Date |
|---|---|
| CN204893100U true CN204893100U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520487537.5U Withdrawn - After Issue CN204893100U (en) | 2015-07-08 | 2015-07-08 | Spline machining cutter device in little modulus blind hole |
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| Country | Link |
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| CN (1) | CN204893100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942378A (en) * | 2015-07-08 | 2015-09-30 | 荆州荆龙汽车零部件科技有限公司 | Small-modulus blind hole internal spline processing tool device and processing method |
-
2015
- 2015-07-08 CN CN201520487537.5U patent/CN204893100U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942378A (en) * | 2015-07-08 | 2015-09-30 | 荆州荆龙汽车零部件科技有限公司 | Small-modulus blind hole internal spline processing tool device and processing method |
| CN104942378B (en) * | 2015-07-08 | 2017-06-30 | 荆州荆龙汽车零部件科技有限公司 | Low module blind hole inner spline process tool device and processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20170630 |