CN202212640U - Secondary broaching tool for inner ring gear step tooth of synchronizer - Google Patents
Secondary broaching tool for inner ring gear step tooth of synchronizer Download PDFInfo
- Publication number
- CN202212640U CN202212640U CN2011202562062U CN201120256206U CN202212640U CN 202212640 U CN202212640 U CN 202212640U CN 2011202562062 U CN2011202562062 U CN 2011202562062U CN 201120256206 U CN201120256206 U CN 201120256206U CN 202212640 U CN202212640 U CN 202212640U
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- tooth
- cutter hub
- peripheral surface
- dark
- external peripheral
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Abstract
The utility model discloses a secondary broaching tool for an inner ring gear step tooth of a synchronizer, which comprises a front guide, a back guide and a tool body, wherein splines are distributed on the outer surface of the front guide close to the tool body, and large-diameter spline teeth are distributed on the surface of the tool body. With the technical scheme, when an inner ring gear of the synchronizer is processed, the inner tooth is broached by a primary broaching tool, an allowance of 0.1-0.15 is reserved, and then an excircle is finely turned, and a back taper of the inner tooth is extruded, and the like; the inner tooth is finely broached by the secondary broaching tool provided by the utility model; and finally, the inner tooth is chamfered, and burrs, bosses, back tapers and the like generated after primary broaching on the large diameter of the inner tooth can be removed in the working procedure of fine broaching of the inner tooth.
Description
Technical field
The utility model relates to a kind of cutting tool of automobile synchronizer ring gear, particularly a kind of secondary broaching process tool of processing synchronized ring gear step tooth.
Background technology
At present, when processing automobile synchronized ring gear, internal tooth all is once to broach through broaching cutters to form, that an existing broaching cutters comprises is leading, after lead and cutter hub, on cutter hub, establish tooth.Its processing technology is: draw the gear ring internal tooth, finish turning cylindrical, crowded internal tooth back taper etc. obtain the synchronized ring gear at last the internal tooth chamfering then.Though this technology is simple to operate, the defective that exists is: once broaching with broaching cutters forms, and is prone on internal tooth, stay burr, boss, back taper etc., influences the precision of synchronized.Owing to exist above-mentioned defective, someone to propose to carry out the internal tooth cut second time, the cutter structure of internal tooth cut need solve the defective that processing for the first time stays for the second time, and this project becomes the problem that the sector is pursued.
In order to prevent that synchronized from skidding; Be provided with step tooth (seeing shown in Figure 1) three, in the fourth gear synchronized ring gear; So-called step tooth is exactly high tooth a, center tooth b and the short tooth c that on gear ring, is provided with different big footpaths simultaneously; The big footpath of said high tooth a is greater than the big footpath of center tooth b, and the big footpath of said center tooth b is greater than the big footpath of short tooth c.Can avoid the synchronized gear ring to skid like this, an existing broaching cutters can not use a cutter directly to pull out high tooth a, center tooth b and the short tooth c in the different big footpaths on the gear ring, in operation, need change cutter, uses inconvenience.
The utility model content
The utility model technical problem to be solved is to provide a kind of secondary broaching cutters that can remove the high synchronized ring gear step tooth of burr, boss, back taper, machining accuracy on the internal tooth.
The technical scheme of the utility model is following: a kind of synchronized ring gear step tooth secondary broaching cutters; Comprise leading, after lead and cutter hub; Leading external peripheral surface near cutter hub is distributed with spline; External peripheral surface near leading cutter hub is distributed with tooth A, near after the outer surface of the cutter hub of leading be distributed with tooth C, the external peripheral surface of the cutter hub between said tooth C and the tooth A is distributed with tooth B.
Adopt technique scheme; When processing synchronized ring gear; At first draw internal tooth, made allowance 0.1-0.15, and then finish turning cylindrical at this moment, crowded internal tooth back taper etc. with a broaching cutters; And then, in the operation of finish draw internal tooth, can remove one and draw burr on the internal tooth that the back produces, boss, back taper etc. with the secondary broaching cutters finish draw internal tooth of the utility model.Improve the precision of synchronized ring gear.Spline on two broaching tool tools are leading plays the effect of guiding with the internal tooth engagement of the gear ring after once broaching.On cutter hub, be provided with tooth A, tooth C and tooth B simultaneously, can pull out three respectively, high tooth, short tooth and center tooth in the ring gear of fourth gear synchronized.
In technique scheme: install and place cutter for ease, said leading with after the end of leading be equipped with the card handle.
In technique scheme: the external peripheral surface of said cutter hub is distributed with six circle tooth A, seven circle tooth B and 18 circle tooth C, and the external peripheral surface of the cutter hub between per two circle tooth A also is provided with a circle guiding tooth.
In technique scheme: said guiding tooth is totally three circles, and they are arranged near on the cutter hub between the leading tooth A.
In technique scheme, in order to pull out the step tooth, said tooth A comprises logical tooth and six dark teeth, and wherein two adjacent settings of dark tooth constitute one group, and three groups of dark teeth are distributed on the external peripheral surface of cutter hub, and the external peripheral surface of the cutter hub between three groups of dark teeth is logical tooth; Said tooth B comprises logical tooth, six dark teeth and 12 center tooth; Same wherein two adjacent settings of dark tooth constitute one group; Three groups of dark teeth are distributed on the external peripheral surface of cutter hub; The adjacent settings of two center tooth constitute one group, and the external peripheral surface of the cutter hub between each both sides of the organizing dark tooth one group of center tooth that respectively distributes, two groups of center tooth is logical tooth; Said every circle tooth C comprises six dark teeth, 12 center tooth and 15 shallow teeth; Wherein two adjacent settings of dark tooth constitute one group, and three groups of dark teeth are distributed on the external peripheral surface of cutter hub, and two adjacent settings of center tooth constitute one group; Each both sides of organizing dark tooth one group of center tooth that respectively distributes; The external peripheral surface of the cutter hub between two groups of center tooth five the shallow teeth that distribute, the big footpath of said dark tooth is greater than center tooth, and the big footpath of said center tooth is greater than the big footpath of shallow tooth.
Beneficial effect: the utility model is reasonable in design, simple in structure, implement easily, and is easy to use and precision is high, can pull out three, the step tooth in the fourth gear synchronized ring gear.
Description of drawings
Fig. 1 is three, the step toothing sketch map in the fourth gear synchronized ring gear;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the AA enlarged drawing among Fig. 2;
Fig. 4 is the BB enlarged drawing among Fig. 2;
Fig. 5 is the CC enlarged drawing among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Shown in Fig. 2-5; The utility model by leading 1, after lead 2, cutter hub 8, card handle 9, tooth A4, guiding tooth 5, tooth B6 and tooth C7 form, said leading 1 and after lead 2 end and be equipped with card handle 9, be provided with spline 3 near leading 1 external peripheral surface of cutter hub 8; The internal tooth engagement of the synchronized ring gear after this spline 3 and the broaching once; The external peripheral surface of the cutter hub 8 near leading 1 is distributed with six circle tooth A4, and said every circle tooth A4 comprises logical tooth 4b and six dark tooth 4a, and wherein two adjacent settings of dark tooth 4a constitute one group; Three groups of dark tooth 4a are distributed on cutter hub 8 external peripheral surfaces, and the external peripheral surface of the cutter hub 8 between three groups of dark tooth 4a is provided with logical tooth 4b; The external peripheral surface that first lap tooth A4 near leading 1 and second encloses between the tooth A4 and the second circle tooth A4 and the 3rd encloses between the tooth A4 and the 3rd circle tooth A4 and the 4th encloses the cutter hub 8 between the tooth A4 respectively is provided with one and encloses guiding tooth 5; Near after lead 2 cutter hub 8 external peripheral surface be distributed with 18 circle tooth C7; The external peripheral surface of the cutter hub 8 between said tooth C7 and the tooth A4 is provided with seven circle tooth B6; Every circle tooth B6 comprises six dark tooth 4a, 12 center tooth 6a and logical tooth 4b; Same wherein two adjacent settings of dark tooth 4a constitute one group, and three groups of dark tooth 4a are distributed on the external peripheral surface of cutter hub 8, and two adjacent settings of center tooth 6a constitute one group; The external peripheral surface of the cutter hub 8 between each both sides of the organizing dark tooth 4a one group of center tooth 6a that respectively distributes, two groups of center tooth 6a is logical tooth 4b; Every circle tooth C7 comprises six dark tooth 4a, 12 center tooth 6a and 15 shallow tooth 7a, and same wherein two adjacent settings of dark tooth 4a constitute one group, and three groups of dark tooth 4a are distributed on the external peripheral surface of cutter hub 8; Two adjacent settings of center tooth 6a constitute one group; The external peripheral surface of the cutter hub 8 between each both sides of the organizing dark tooth 4a one group of center tooth 6a that respectively distributes, two groups of center tooth 6a five the shallow tooth 7a that distribute, the big footpath of said dark tooth 4a is greater than center tooth 6a; The big footpath of said center tooth 6a is greater than the big footpath of shallow tooth 7a; So just corresponding tooth A4 pulls out the high tooth a of synchronized ring gear step tooth, and tooth B6 correspondence is pulled out center tooth b, and tooth C7 correspondence is pulled out short tooth c.With once can pull out cutter three, step tooth in the fourth gear synchronized ring gear, easy to use.The big footpath of said spline 3 is less than the big footpath of tooth A4, tooth B6 and tooth C7.
When processing synchronized ring gear, at first draw internal tooth with an existing broaching cutters, this moment made allowance 0.1-0.15, and then finish turning cylindrical, crowded internal tooth back taper etc., and then with the secondary broaching cutters finish draw internal tooth of the utility model.In the finish draw internal tooth, the ring gear after once rough is fixed, move cutter; Leading 1 spline 3 at first with once rough after the internal tooth engagement of ring gear; Play the effect to the tooth guiding, cutter continues to descend then, uses the high tooth a of the cutter hub 8 finish draw ring gears of the part that is provided with tooth A4; Use the center tooth b of the cutter hub 8 finish draw ring gears of the part that is provided with tooth B6, use the short tooth c of the cutter hub 8 finish draw ring gears of the part that is provided with tooth C7.In the operation of finish draw internal tooth, can remove one and draw burr on the internal tooth that the back produces, boss, back taper etc.Improve the precision of synchronized ring gear.
Claims (5)
1. synchronized ring gear step tooth secondary broaching cutters; Comprise leading (1), after lead (2) and cutter hub (8); It is characterized in that: the external peripheral surface near leading (1) of cutter hub (8) is distributed with spline (3); External peripheral surface near the cutter hub (8) of leading (1) is distributed with tooth A (4); Near after lead the cutter hub (8) of (2) external peripheral surface be distributed with tooth C (7), the external peripheral surface of the cutter hub (8) between said tooth C (7) and the tooth A (4) is distributed with tooth B (6).
2. according to the said synchronized ring gear of claim 1 step tooth secondary broaching cutters, it is characterized in that: said leading (1) and after lead (2) the outer end be equipped with card handle (9).
3. according to the said synchronized ring gear of claim 1 step tooth secondary broaching cutters; It is characterized in that: the external peripheral surface of said cutter hub (8) is distributed with six circle tooth A (4), seven circle tooth B (6) and 18 circle tooth C (7), and the external peripheral surface of the cutter hub (8) between per two circle tooth A (4) also is provided with a circle guiding tooth (5).
4. according to the said synchronized ring gear of claim 3 step tooth secondary broaching cutters, it is characterized in that: said guiding tooth (5) is totally three circles, and they are arranged near on the cutter hub (8) between per two circle tooth A (4) of leading (1).
5. according to the said synchronized ring gear of claim 3 step tooth secondary broaching cutters; It is characterized in that: said circle tooth A (4) comprises logical tooth (4b) and six dark teeth (4a); Wherein adjacent setting of two dark teeth (4a) constitutes one group; Three groups of dark teeth (4a) are distributed on the external peripheral surface of cutter hub (8), and the external peripheral surface of the cutter hub (8) between three groups of dark teeth (4a) is logical tooth (4b); Said tooth B (6) comprises logical tooth (4b), six dark teeth (4a) and 12 center tooth (6a); Wherein adjacent setting of two dark teeth (4a) constitutes one group; Three groups of dark teeth (4a) are distributed on the external peripheral surface of cutter hub (8); Two center tooth (6a) are adjacent to be provided with and to constitute one group, each both sides of organizing dark tooth (4a) one group of center tooth (6a) that respectively distributes, and the external peripheral surface of the cutter hub (8) between two groups of center tooth (6a) is logical tooth (4b); Said tooth C (7) comprises six dark teeth (4a), 12 center tooth (6a) and 15 shallow teeth (7a); Wherein adjacent setting of two dark teeth (4a) constitutes one group; Three groups of dark teeth (4a) are distributed on the external peripheral surface of cutter hub (8); Two center tooth (6a) are adjacent to be provided with and to constitute one group, each both sides of organizing dark tooth (4a) one group of center tooth (6a) that respectively distributes, the external peripheral surface of the cutter hub (8) between two groups of center tooth (6a) five the shallow teeth (7a) that distribute; The big footpath of said dark tooth (4a) is greater than center tooth (6a), and the big footpath of said center tooth (6a) is greater than the big footpath of shallow tooth (7a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202562062U CN202212640U (en) | 2011-07-20 | 2011-07-20 | Secondary broaching tool for inner ring gear step tooth of synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202562062U CN202212640U (en) | 2011-07-20 | 2011-07-20 | Secondary broaching tool for inner ring gear step tooth of synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202212640U true CN202212640U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202562062U Expired - Lifetime CN202212640U (en) | 2011-07-20 | 2011-07-20 | Secondary broaching tool for inner ring gear step tooth of synchronizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202212640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266979A (en) * | 2011-07-20 | 2011-12-07 | 重庆市江汇机械有限责任公司 | Secondary broaching cutter for stepped teeth of synchronizer inner gear ring |
-
2011
- 2011-07-20 CN CN2011202562062U patent/CN202212640U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266979A (en) * | 2011-07-20 | 2011-12-07 | 重庆市江汇机械有限责任公司 | Secondary broaching cutter for stepped teeth of synchronizer inner gear ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
|
| CX01 | Expiry of patent term |