CN202865273U - Shape-limiting quenching device - Google Patents
Shape-limiting quenching device Download PDFInfo
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- CN202865273U CN202865273U CN 201220453276 CN201220453276U CN202865273U CN 202865273 U CN202865273 U CN 202865273U CN 201220453276 CN201220453276 CN 201220453276 CN 201220453276 U CN201220453276 U CN 201220453276U CN 202865273 U CN202865273 U CN 202865273U
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Abstract
The utility model provides a shape-limiting quenching device which comprises a quenching mandrel, an upper compression ring and a discharge disc. A workpiece is sleeved on the quenching mandrel, and the workpiece and the quenching mandrel are placed on the discharge disc. The upper compression ring is located above the quenching mandrel which is in a step-shaft structure. The quenching mandrel comprises a large end shaft section, a middle end shaft section and a small shaft end section. The bottom end face of the large end shaft section has a first oil discharge hole, the middle end shaft section is provided with an outer gear matched with an inner hole of the workpiece in gear shape, and the small end shaft section is an optical shaft matched with the size of an inner hole in the workpiece. A circular groove is arranged in the periphery of the small end shaft section. The upper compression ring is in a step flange disc structure which comprises a large end and a small end. A cylindrical cavity matched with the optical shaft of the quenching mandrel is arranged in the center of the small end face. According to the shape-limiting quenching device provided by the utility model, the roundness of the workpiece can be ensured, and meanwhile, the precision control of verticality between the inner gear of the workpiece and the end face of the workpiece is greatly improved, and the verticality precision to relative workpiece end face of the inner gear of the workpiece is further improved by one grade.
Description
Technical field
The invention belongs to the automobile synchronizer technical field, relates in particular to a kind of limit shape quenching device of gear ring.
Background technology
For the larger carburizing tooth cover in aperture, be circularity and the planeness behind the assurance workpiece quenching at present, producer is that limit shape is pressed the thermal treatment process route of quenching after adopting carburizing and air cooling substantially entirely.What current limit shape pressure was quenched the frock employing is the traditional structure shown in figure below one.Precision after this kind limits shape quenching structure frock to the raising heat treatment of workpieces generally speaking plays a role.But effect is not obviously for the relative workpiece end face of gear ring internal tooth has the workpiece that verticality requires, and has when being lower to workpiece material hardening capacity again, and circularity all is difficult to assurance.Always not obvious by effect after adjusting the thermal treatment ginseng for above situation.
Summary of the invention
The problem that the invention will solve provides a kind of steady quality, working accuracy is high, can satisfy the limit shape quenching device of the carburizing gear ring of high-end processing requirement.
For solving the problems of the technologies described above, the technical scheme that the invention is adopted is: a kind of limit shape quenching device, comprise and press the axle of quenching, upper press ring and unload charging tray, workpiece is sleeved on presses on the axle of quenching, workpiece is placed on and unloads on the charging tray with the pressure axle of quenching, upper press ring is positioned at the top of pressing the axle of quenching, the described pressure axle profile of quenching is a ladder axle construction, comprise large end shaft part, middle-end shaft part and small end shaft part, the bottom face of described large end shaft part is provided with the first row oilhole, described middle-end shaft part is provided with the external tooth with inner hole of workpiece profile of tooth coupling, described small end shaft part is an optical axis that is complementary with the inner hole of workpiece size, described small end shaft part be circumferentially with ring groove, described first row oilhole and ring groove connect; Described upper press ring is a stepped flange plate structure, comprises large end and small end, and described small end end face center has a cylindrical cavity that is complementary with the optical axis of pressing the axle of quenching.
Further, the quench lower surface of the large end shaft part of axle of described pressure is provided with the second row oilhole, presses on the upper surface of the large end shaft part of axle of quenching and establishes the 3rd oil groove, and described second row oilhole and the 3rd oil groove connect.
Further, also comprise an eccentric circular ring and taper sheath; The profile of described eccentric circular ring is a frustum cone structure, formed by at least two parts of vertically separating, surface of separation is by the central axis of eccentric circular ring, comprise large end and small end, described large end end face center is provided with a cylindrical boss, described small end end face center is provided with a through hole that is complementary with the workpiece external diameter, described through hole and raised head face connect, the side of described round platform is provided with oil supply hole, the generatrix direction of described through hole is provided with the first oil groove, the end face of described boss is provided with the second oil groove, and described oil supply hole, the second oil groove all connect with the first oil groove; The center of described taper sheath upper surface is provided with a cylindrical hole, the center of taper sheath lower surface is provided with a tapered hole, described cylindrical hole and tapered hole connect, the outer circumference surface of described taper sheath is provided with the oil-feed cavity, described oil-feed cavity and tapered hole connect, and described taper sheath is sleeved on the eccentric circular ring.
Further, the cylindrical hole of described taper sheath is followed successively by the first cylindrical hole, circular shoulder block, the second cylindrical hole from top to bottom.
Further, also comprise the first backing plate, described the first backing plate is circular ring, the upper surface of the first backing plate is provided with and is no less than three blind holes, all mating in each blind hole has the first spring, and described the first backing plate is sleeved in the first cylindrical hole of taper sheath, and is positioned at the top of eccentric circular ring small end face.
Further, the blind hole on described the first backing plate evenly distributes with respect to the center of the first backing plate upper surface.
Further, the lower surface of circular shoulder block is provided with the blind hole that the blind hole with the first backing plate is complementary in the described taper sheath.
Further, also comprise the second backing plate, described the second backing plate is circular ring, and the second backing plate is fixed on the lower surface of taper sheath.
Further, also comprise the patrix terminal pad, the lower surface of described patrix terminal pad is provided with and is no less than three through holes, all mate on described each through hole second spring is arranged, be equipped with screw on the upper surface of described patrix terminal pad, described through hole and screw connect, and described patrix terminal pad is fixed on the upper surface of taper sheath.
Advantage and positively effect that the invention has are: can guarantee the circularity requirement of workpiece, the precision control aspect of the verticality between workpiece internal tooth and workpiece end face is greatly improved, simultaneously the verticality precision of the relative workpiece end face of workpiece internal tooth has also been improved a grade.
Description of drawings
Fig. 1 is traditional limit shape quenching device structural representation;
Fig. 2 is the structural representation of the invention;
Fig. 3 presses the structural representation of axle of quenching;
Fig. 4 is the structural representation of eccentric circular ring;
Fig. 5 is the structural representation of taper sheath.
Among the figure:
1. workpiece 2. is pressed axle 3. eccentric circular rings of quenching
4. unload charging tray 5. second backing plates 6. taper sheaths
7. the first backing plate 8. first springs 9. upper press rings
10. the second spring 11. patrix terminal pads 21. are held greatly shaft parts
22. middle-end shaft part 23. small end shaft parts 24. ring grooves
25. the 3rd oil groove 26. second row oilholes 27. first row oilholes
31. through hole 32. round platforms 33. boss
34. the second oil groove 35. first oil grooves 36. oil supply holes
61. tapered hole 62. second cylindrical holes 63. circular shoulder blocks
64. the first cylindrical hole 65. blind holes 66. oil suction chambers
Embodiment
Enumerating a specific embodiment below in conjunction with accompanying drawing further sets forth the invention.
Fig. 1 is the tradition limit shape quenching device structural representation that gear ring is quenched and processes.
Fig. 2 is the structural representation of the invention, comprises pressing quenching axle 2, upper press ring 9 and unloading charging tray 4, and workpiece 1 is sleeved on presses on the axle 2 of quenching, and workpiece 1 is placed on and unloads on the charging tray 4 with the pressure axle 2 of quenching, and upper press ring 9 is positioned at the top of pressing the workpiece 1 on the axle 2 of quenching.
In the present embodiment, as shown in Figure 3, pressure axle 2 profiles of quenching are a ladder axle construction, comprise large end shaft part 21, middle-end shaft part 22 and small end shaft part 23, the bottom face of large end shaft part 21 is provided with first row oilhole 27, middle-end shaft part 22 is provided with the external tooth with inner hole of workpiece profile of tooth coupling, small end shaft part 23 is an optical axis that is complementary with the inner hole of workpiece size, small end shaft part 23 be circumferentially with ring groove 24, first row oilhole 27 connects with ring groove 24, the lower surface of large end shaft part 21 is provided with second row oilhole 26, holds greatly on the upper surface of shaft part 21 and establishes the 3rd oil groove 25, and second row oilhole 26 and the 3rd oil groove 25 connect.
In the present embodiment, upper press ring 9 is a stepped flange plate structure, and small end end face center has a cylindrical cavity that is complementary with the optical axis of pressing the axle of quenching.
In the present embodiment, also comprise an eccentric circular ring 3, taper sheath 6, the first backing plate 7, the second backing plate 5, patrix terminal pad 11; Eccentric circular ring 3 is sleeved in the tapered hole of taper sheath 6, the first backing plate 7 is fixed on the small end face of eccentric circular ring 3 by the first spring 8, the second backing plate 5 is fixed on the lower surface of taper sheath 6 by bolt, patrix terminal pad 11 is fixed in by bolt on the upper surface of taper sheath 6, and upper press ring 9 is fixed in patrix terminal pad 11.
As shown in Figure 4, the profile of eccentric circular ring 3 is a round platform 32, formed by two parts of vertically separating, surface of separation is by the central axis of eccentric circular ring 3, large end end face center is provided with a cylindrical boss 33, small end end face center is provided with a through hole 31 that is complementary with the workpiece external diameter, through hole 31 connects with boss 33 end faces, through hole 31 internal diameters equal the outside diameter of workpiece, the side of round platform 32 is provided with oil supply hole 36, the generatrix direction of through hole 31 is provided with the first oil groove 35, and the end face of boss 33 is provided with the second oil groove 34, oil supply hole 36, the second oil groove 34 all connects with the first oil groove 35.
As shown in Figure 5, the center of taper sheath 6 upper surfaces is provided with a cylindrical hole, the center of taper sheath 6 lower surfaces is provided with a tapered hole 61, cylindrical hole and tapered hole 61 connect, the outer circumference surface of taper sheath 6 is provided with oil suction chamber 66, oil suction chamber 66 connects with tapered hole, taper sheath 6 is sleeved on the eccentric circular ring 3, the cylindrical hole of taper sheath 6 is followed successively by the first cylindrical hole 64, circular shoulder block 63, the second cylindrical hole 62 from top to bottom, and the lower surface of taper sheath 6 interior circular shoulder blocks 63 is provided with the blind hole that the blind hole with the first backing plate 7 is complementary.
The first backing plate 7 and the second backing plate 5 are circular ring, and the upper surface of the first backing plate 7 is provided with three with respect to its equally distributed blind hole in end face center.
The lower surface of patrix terminal pad 11 is provided with three through holes, and all mating on each through hole has second spring 10, is equipped with screw on the upper surface of patrix terminal pad 11, and through hole and screw connect.
Virgin state: stretch vertically downward under the effect of upper press ring 9 second spring 10 in patrix terminal pad 11 with the upper surface of circular shoulder block 63 in the taper sheath 3 and contact; Simultaneously, the small end face of the round platform 32 on the first backing plate 7 and the eccentric circular ring 3 contacts, and taper sheath 6 is stretched downwards, so that the large end face of round platform 32 contacts with second baffle 5 on the eccentric circular ring 3; This moment, the combined diameter of eccentric circular ring 3 was maximum, had surpassed the outside diameter of workpiece 1.
Working order: the workpiece 1 after will heating is sleeved on presses on the axle 2 of quenching, and this moment, the internal tooth of workpiece was meshed with the external tooth of the middle-end shaft part 22 of pressing the axle of quenching, and workpiece is circumferentially fixing; Upper mould device promotes patrix terminal pad 11 and moves downward in the process that descends, the effect upper press ring 9 by the second spring 10 is with Work-sheet pressing, and the axial location of workpiece is complete; Simultaneously, the descending motion of upper mould device, the end face of the cylindrical boss 33 of eccentric circular ring 3 in this limit shape quenching device is contacted with the upper surface of the large end shaft part 21 of pressing the axle 2 of quenching, at this moment, the eccentric circular ring axial restraint is complete, along with further moving downward of taper sheath 6, by the tapered hole in the taper sheath 6 with 61 with round platform 32 male cone (strobilus masculinus)s of eccentric circular ring 3 between cooperate, make eccentric circular ring 3 transverse movements, the combination interior diameter of eccentric circular ring 3 reduces, until suitable with the external diameter of workpiece, this time limit shape quenching device is fixing complete; At this moment, utility appliance by taper sheath 6 oil suction chamber 66 and the oil supply hole 36 of eccentric circular ring 3 promptly spray the oil cooling medium to workpiece, finish gear ring workpiece 1 processing of quenching.
In sum, this limit shape quenching device adds man-hour to the quenching of gear ring workpiece, the periphery of workpiece 1 is owing to being subject to the inside pressure of eccentric circular ring 3, and presses and quench axle to the outside pressure of workpiece diameter, and the circularity precision of the workpiece that the acting in conjunction of two kinds of pressure makes is guaranteed; Simultaneously, because shaft part is with end shaft part and small end shaft part are one processing greatly in the middle of pressing the axle of quenching, guaranteed the small end shaft part outer circumference surface, middle-end shaft part internal tooth all with the verticality accuracy requirement of the upper surface of large end shaft part, so just guaranteed to add the verticality requirement that can effectively control workpiece gear ring endoporus and end face man-hour quenching.
An above embodiment to the invention has been described in detail, but described content only is the preferred embodiment of the invention, can not be considered to for the practical range that limits the invention.All equalizations of doing according to the invention application range change and improve etc., all should still belong within the patent covering scope of the invention.
Claims (9)
1. limit the shape quenching device for one kind, comprise and press the axle of quenching, upper press ring and unload charging tray, workpiece is sleeved on presses on the axle of quenching, workpiece is placed on and unloads on the charging tray with the pressure axle of quenching, upper press ring is positioned at the top of pressing the axle of quenching, it is characterized in that: the described pressure axle profile of quenching is a ladder axle construction, comprise large end shaft part, middle-end shaft part and small end shaft part, the bottom face of described large end shaft part is provided with the first row oilhole, described middle-end shaft part is provided with the external tooth with inner hole of workpiece profile of tooth coupling, described small end shaft part is an optical axis that is complementary with the inner hole of workpiece size, described small end shaft part be circumferentially with ring groove, described first row oilhole and ring groove connect; Described upper press ring is a stepped flange plate structure, comprises large end and small end, and described small end end face center has a cylindrical cavity that is complementary with the optical axis of pressing the axle of quenching.
2. limit shape quenching device according to claim 1 is characterized in that: the quench lower surface of the large end shaft part of axle of described pressure is provided with the second row oilhole, presses on the upper surface of the large end shaft part of axle of quenching and establishes the 3rd oil groove, and described second row oilhole and the 3rd oil groove connect.
3. limit shape quenching device according to claim 1 is characterized in that: also comprise an eccentric circular ring and taper sheath; The profile of described eccentric circular ring is a frustum cone structure, formed by at least two parts of vertically separating, surface of separation is by the central axis of eccentric circular ring, comprise large end and small end, described large end end face center is provided with a cylindrical boss, described small end end face center is provided with a through hole that is complementary with the workpiece external diameter, described through hole and raised head face connect, the side of described round platform is provided with oil supply hole, the generatrix direction of described through hole is provided with the first oil groove, the end face of described boss is provided with the second oil groove, and described oil supply hole, the second oil groove all connect with the first oil groove; The center of described taper sheath upper surface is provided with a cylindrical hole, the center of taper sheath lower surface is provided with a tapered hole, described cylindrical hole and tapered hole connect, the outer circumference surface of described taper sheath is provided with the oil-feed cavity, described oil-feed cavity and tapered hole connect, and described taper sheath is sleeved on the eccentric circular ring.
4. limit shape quenching device according to claim 3, it is characterized in that: the cylindrical hole of described taper sheath is followed successively by the first cylindrical hole, circular shoulder block, the second cylindrical hole from top to bottom.
5. limit shape quenching device according to claim 1, it is characterized in that: also comprise the first backing plate, described the first backing plate is circular ring, the upper surface of the first backing plate is provided with and is no less than three blind holes, all mate in each blind hole the first spring is arranged, described the first backing plate is sleeved in the first cylindrical hole of taper sheath, and is positioned at the top of eccentric circular ring small end face.
6. limit shape quenching device according to claim 5, it is characterized in that: the blind hole on described the first backing plate evenly distributes with respect to the center of the first backing plate upper surface.
7. it is characterized in that according to claim 4 or 5 described limit shape quenching devices: the lower surface of circular shoulder block is provided with the blind hole that the blind hole with the first backing plate is complementary in the described taper sheath.
8. limit shape quenching device according to claim 1, it is characterized in that: also comprise the second backing plate, described the second backing plate is circular ring, and the second backing plate is fixed on the lower surface of taper sheath.
9. limit shape quenching device according to claim 1, it is characterized in that: also comprise the patrix terminal pad, the lower surface of described patrix terminal pad is provided with and is no less than three through holes, all mate on described each through hole second spring is arranged, be equipped with screw on the upper surface of described patrix terminal pad, described through hole and screw connect, and described patrix terminal pad is fixed on the upper surface of taper sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453276 CN202865273U (en) | 2012-09-06 | 2012-09-06 | Shape-limiting quenching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453276 CN202865273U (en) | 2012-09-06 | 2012-09-06 | Shape-limiting quenching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202865273U true CN202865273U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220453276 Expired - Fee Related CN202865273U (en) | 2012-09-06 | 2012-09-06 | Shape-limiting quenching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202865273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397152A (en) * | 2013-08-05 | 2013-11-20 | 天津天海同步科技股份有限公司 | Combined pressure quenching mandrel |
-
2012
- 2012-09-06 CN CN 201220453276 patent/CN202865273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397152A (en) * | 2013-08-05 | 2013-11-20 | 天津天海同步科技股份有限公司 | Combined pressure quenching mandrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20160906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |