CN218478788U - Multi-pressure head gear quenching press die - Google Patents
Multi-pressure head gear quenching press die Download PDFInfo
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- CN218478788U CN218478788U CN202222274699.3U CN202222274699U CN218478788U CN 218478788 U CN218478788 U CN 218478788U CN 202222274699 U CN202222274699 U CN 202222274699U CN 218478788 U CN218478788 U CN 218478788U
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Abstract
The utility model discloses a multi-pressure head gear quenching pressing die, which comprises an outer pressure ring, a central bearing seat, a supporting plate and an outer supporting ring; a plurality of longitudinal lower screws penetrate through the inner support ring in a sliding manner and are connected with the outer support ring, lower springs are sleeved outside the lower screws, a base is arranged in the outer support ring, the lower section of a cone is arranged in a stepped hole of the base, a return spring is arranged below the cone, a plurality of expansion blocks are arranged on the upper end surface of the base, the inner side of each expansion block and the excircle of the upper end of the cone are provided with matched conical surfaces, and a spring ring is arranged in grooves on the outer sides of all the expansion blocks; a push rod is arranged above the cone; an inner pressure ring seat is arranged between the push rod and the outer pressure ring, a plurality of longitudinal upper screws penetrate through the inner pressure ring in a sliding manner and are connected with the inner pressure ring seat, and upper springs are sleeved outside the upper screws; the utility model discloses can compress tightly gear and inboard radials simultaneously, reduce the deformation of the two to improve the work piece precision.
Description
Technical Field
The utility model relates to a quenching pressing die, in particular to a multi-pressing-head quenching pressing die for gears.
Background
The existing gear quenching pressing die comprises an outer pressure ring, a central supporting seat, a supporting plate sleeved outside the upper section of the central supporting seat, an outer supporting ring fixedly arranged on the supporting plate and the like; the upper end surface and the lower end surface of the gear are pressed and fixed through the outer pressure ring and the outer support ring so as to reduce quenching deformation; however, the deformation of the wheel disk at the inner side of the gear is difficult to control during quenching, and particularly for the gear with a thin wheel disk, the deformation of the wheel disk is large, so that the precision of a workpiece is reduced.
Disclosure of Invention
The utility model aims at the above-mentioned not enough that prior art exists, provide a many pressure head gear quenching moulding-die, it can compress tightly gear and inboard radials simultaneously, reduce the deformation of the two to improve the work piece precision.
In order to achieve the purpose, the multi-pressure head gear quenching pressing die comprises an outer pressure ring, a central supporting seat, a supporting plate sleeved outside the upper section of the central supporting seat and an outer supporting ring fixedly arranged on the supporting plate; the device is characterized in that a plurality of longitudinal lower screws penetrate through an inner support ring in a sliding manner and are connected with an outer support ring, lower springs are sleeved outside the lower screws between the inner support ring and the outer support ring, a base is arranged in the outer support ring, the lower section of the base is arranged in an inner hole of a central supporting seat, a stepped hole is formed in the base, the lower section of a cone is arranged in the stepped hole, a reset spring is arranged in the stepped hole below the cone, a plurality of expansion blocks surrounding the cone are arranged on the upper end surface of the base, the inner side of each expansion block and the excircle of the upper end of the cone are provided with matched conical surfaces, the outer side of each expansion block is provided with a groove, and a spring ring is arranged in the grooves of all the expansion blocks; a push rod is arranged above the cone; an inner pressure ring seat is arranged between the push rod and the outer pressure ring, a plurality of longitudinal upper screws penetrate through the inner pressure ring in a sliding mode and are connected with the inner pressure ring seat, and upper springs are sleeved outside the upper screws between the inner pressure ring seat and the inner pressure ring.
The utility model is suitable for a quenching machine tool with a plurality of pressure heads; when the center supporting seat is used, the center supporting seat is arranged on a workbench of a machine tool, and the outer pressure ring, the inner pressure ring seat and the push rod are connected with three pressure heads of the machine tool; the gear of the workpiece is arranged on the outer support ring, and the inner side spoke plate is arranged on the inner support ring; when the device works, the three pressure heads descend sequentially, the push rod pushes the cone to descend firstly, the conical surface at the upper end of the cone pushes each expansion block to move radially and expand a workpiece, then the inner pressure ring seat drives the inner pressure ring to descend, the inner pressure ring and the inner support ring jointly act to compress the inner radial plate, then the outer pressure ring descends, the outer pressure ring and the outer support ring jointly act to compress the gear, so that the gear and the inner radial plate are simultaneously compressed, the deformation of the gear and the inner radial plate is reduced during quenching, and the workpiece precision is improved;
as a further improvement of the utility model, a limit pad is arranged between the cone and the base below the cone; the device can be used for workpieces with different inner holes;
as a further improvement of the utility model, a central bolt passes through the cone body and is connected with the base, and the reset spring is sleeved outside the central bolt; the movement of the cone can be limited and the stability of the cone can be ensured;
as a further improvement of the utility model, the upper section of the base is provided with a plurality of longitudinal through grooves, and the upper end surface of the supporting plate is provided with a plurality of horizontal liquid guide grooves; the flow of the quenching liquid at the inner side of the gear can be realized;
to sum up, the utility model discloses can compress tightly gear and inboard radials simultaneously, reduce the deformation of the two to improve the work piece precision.
Drawings
Fig. 1 is a front view of the embodiment of the present invention.
Fig. 2 is a top view of each of the expansion blocks of fig. 1.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is a top view of the outer support ring of fig. 1.
Fig. 5 is a top view of the inner support ring of fig. 1.
Fig. 6 is a top view of the base of fig. 1.
Fig. 7 is a top view of the support plate of fig. 1.
Figure 8 is a bottom view of the inner compression ring of figure 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the multi-ram gear quenching die of the embodiment includes an outer ring 1, a central support base 2, a support plate 3 sleeved outside the upper section of the central support base 2, and an outer support ring 4 fixedly arranged on the support plate 3; a plurality of longitudinal lower screws 5 penetrate through the inner support ring 6 in a sliding manner and are connected with the outer support ring 4 through threads, lower springs 7 are sleeved outside the lower screws 5 between the inner support ring 6 and the outer support ring 4, a base 8 is arranged in the outer support ring 4, a plurality of longitudinal through grooves 9 are arranged at the upper section of the base 8, a plurality of horizontal liquid guide grooves 10 are arranged on the upper end surface of the support plate 3, the lower section of the base 8 is arranged in an inner hole of the central support seat 2, a stepped hole is arranged in the base 8, the lower section of a cone 11 is arranged in the stepped hole, a limit pad 12 is arranged between the cone 11 and the base 8 below the cone 11, a reset spring 13 is arranged in the stepped hole below the cone 11, a central bolt 14 penetrates through the cone 11 and is connected with the base 8 through threads, and the reset spring 13 is sleeved outside the central bolt 14; the upper end face of the base 8 is provided with a plurality of expansion blocks 15 surrounding the cone 11, the inner side of each expansion block 15 and the excircle of the upper end of the cone 11 are respectively provided with a matched conical surface 16, the outer side of each expansion block 15 is provided with a groove 17, and a spring ring 18 is arranged in the grooves 17 of all the expansion blocks 15; a push rod 19 is arranged above the cone 11; an inner pressure ring seat 20 is arranged between the push rod 19 and the outer pressure ring 1, a plurality of longitudinal upper screws 21 penetrate through the inner pressure ring 22 in a sliding mode and are connected with the inner pressure ring seat 20 through threads, and upper springs 23 are sleeved outside the upper screws 21 between the inner pressure ring seat 20 and the inner pressure ring 22.
The utility model is suitable for a quenching machine tool with three pressing heads (not shown); when in use, the central supporting seat 2 is arranged on a workbench of a machine tool, and the outer pressure ring 1, the inner pressure ring seat 20 and the push rod 19 are connected with a pressure head of the machine tool respectively; the gear 31 of the workpiece is arranged on the outer support ring 4, and the inner radial plate 32 is arranged on the inner support ring 6; when the device works, a pressure head descends firstly, a cone 11 is pushed to descend through a push rod 19, a conical surface 16 at the upper end of the cone 11 pushes each expansion block 15 to move radially and expand a workpiece, then a second pressure head drives an inner pressure ring 22 to descend through an inner pressure ring seat 20 and to act together with an inner support ring 6 to press an inner radial plate 32, then a third pressure head pushes an outer pressure ring 1 to descend to act together with an outer support ring 4 to press a gear 31, the gear and the inner radial plate can be pressed simultaneously, and the deformation of the gear and the inner radial plate is reduced during quenching, so that the workpiece precision is improved; the replacement of the limiting pad 12 can be used for workpieces with different inner holes; the central bolt 14 and the return spring 13 can limit the movement of the cone 11 and ensure the movement stability thereof; the through groove 9 and the plurality of liquid guide grooves 10 can realize the flowing of the quenching liquid at the inner side of the gear, thereby improving the quenching quality.
Claims (4)
1. A multi-pressure head gear quenching pressing die comprises an outer pressure ring, a central supporting seat, a supporting plate sleeved outside the upper section of the central supporting seat, and an outer supporting ring fixedly arranged on the supporting plate; the device is characterized in that a plurality of longitudinal lower screws penetrate through an inner support ring in a sliding manner and are connected with an outer support ring, lower springs are sleeved outside the lower screws between the inner support ring and the outer support ring, a base is arranged in the outer support ring, the lower section of the base is arranged in an inner hole of a central supporting seat, a stepped hole is formed in the base, the lower section of a cone is arranged in the stepped hole, a reset spring is arranged in the stepped hole below the cone, a plurality of expansion blocks surrounding the cone are arranged on the upper end surface of the base, the inner side of each expansion block and the excircle of the upper end of the cone are provided with matched conical surfaces, the outer side of each expansion block is provided with a groove, and a spring ring is arranged in the grooves of all the expansion blocks; a push rod is arranged above the cone; an inner pressure ring seat is arranged between the push rod and the outer pressure ring, a plurality of longitudinal upper screws penetrate through the inner pressure ring in a sliding mode and are connected with the inner pressure ring seat, and upper springs are sleeved outside the upper screws between the inner pressure ring seat and the inner pressure ring.
2. The multi-nose gear quenching die of claim 1, wherein a stop pad is disposed between the cone and the underlying base.
3. The multi-nose gear quenching die of claim 1 or 2, wherein a central bolt passes through the cone and is connected with the base, and the return spring is sleeved outside the central bolt.
4. The multi-nose gear quenching die of claim 3, wherein the upper section of the base is provided with a plurality of longitudinal through grooves, and the upper end surface of the supporting plate is provided with a plurality of horizontal liquid guide grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222274699.3U CN218478788U (en) | 2022-08-29 | 2022-08-29 | Multi-pressure head gear quenching press die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222274699.3U CN218478788U (en) | 2022-08-29 | 2022-08-29 | Multi-pressure head gear quenching press die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218478788U true CN218478788U (en) | 2023-02-14 |
Family
ID=85165711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222274699.3U Active CN218478788U (en) | 2022-08-29 | 2022-08-29 | Multi-pressure head gear quenching press die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218478788U (en) |
-
2022
- 2022-08-29 CN CN202222274699.3U patent/CN218478788U/en active Active
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