CN214079252U - Split middle die for high-strength high-precision chain wheel - Google Patents
Split middle die for high-strength high-precision chain wheel Download PDFInfo
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- CN214079252U CN214079252U CN202022739170.5U CN202022739170U CN214079252U CN 214079252 U CN214079252 U CN 214079252U CN 202022739170 U CN202022739170 U CN 202022739170U CN 214079252 U CN214079252 U CN 214079252U
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Abstract
The utility model relates to a well mould of components of a whole that can function independently for high strength high accuracy sprocket, the on-line screen storage device comprises a base, the base central part is equipped with inner cavity of the base, the central part of base is inlayed through inner cavity of the base and is had the boss mold core, the outside end of boss mold core is equipped with the apron, the apron central part is equipped with the apron inner chamber, the central part of base is inlayed through the apron inner chamber and is had tooth portion mold core for plastic sprocket tooth portion, and on the side end face of boss mold core butt to tooth portion mold core, the apron is through corresponding bolt and base looks rigid coupling. The utility model discloses change the mould into split type, reduce stress concentration risk, improve mould intensity to but local change or maintenance, reduce cost.
Description
Technical Field
The utility model relates to a powder metallurgy technical field, concretely relates to well mould in components of a whole that can function independently for high strength high accuracy sprocket.
Background
The sprocket is higher as transmission, atress part to intensity and precision requirement, and when tooth portion precision was lower, it can not smooth with the chain meshing in the use, influences power transmission, can appear local torsion too high simultaneously, and then leads to fracture, damaged, wearing and tearing scheduling problem.
In the powder metallurgy part production process, shaping is used as a main option for improving the accuracy of tooth parts, inner diameters and the like of chain wheels.
In the conventional design of a finishing die, a middle finishing die is generally integrated, so that the die is cracked due to stress concentration in the using process, and the die is required to be integrally replaced when the die is worn or damaged due to the requirement of high precision of a chain wheel, so that the cost of the die is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that prior art exists, provide a well mould in components of a whole that can function independently for high strength high accuracy sprocket, change the mould into split type, reduce stress concentration risk, improve mould intensity to but local change or maintenance, reduce cost.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a well mould of components of a whole that can function independently for high strength high accuracy sprocket, includes the base, the base central part is equipped with the base inner chamber, the central part of base is inlayed through the base inner chamber and is had the boss mold core, the outside end of boss mold core is equipped with the apron, the apron central part is equipped with the apron inner chamber, the central part of base is inlayed through the apron inner chamber and is had tooth portion mold core for plastic sprocket tooth portion, and boss mold core butt is to the side end face of tooth portion mold core on, the apron is through corresponding bolt and base looks rigid coupling.
Furthermore, a hanging table is reserved at the bottom of the inner cavity of the base and used for abutting against the inner side end of the boss mold core, and the pressure bearing capacity in the finishing process is improved.
Furthermore, the boss mold core is embedded into the inner cavity of the base in a shrink fit mode, and the pressure bearing capacity in the finishing process is further improved.
Furthermore, the tooth part mold core is embedded into the cover plate inner cavity of the cover plate in a shrink fit mode, so that the pressure bearing capacity in the finishing process is improved.
Furthermore, the cover plate is provided with a plurality of positioning pin holes which are used for being matched with corresponding positioning pins, so that the cover plate is prevented from rotating in the using process.
Further, the base is made of alloy steel, and the boss mold core and the tooth portion mold core are made of hard alloy.
The utility model has the advantages that:
1. by adopting the split middle die of the utility model, the stress concentration problem of the die when stressed can be effectively reduced, and the cracking risk of the die is reduced;
2. adopt the utility model discloses well mould has reduced the mould because of wearing and tearing or damaged whole replacement cost who produces in the components of a whole that can function independently, with mould modularization split, reduces and does benefit to the maintenance, the change of mould.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
fig. 2 is a sectional view taken along line a-a in fig. 1.
The reference numbers in the figures illustrate: 1. the base, 11, hang the platform, 2, boss mold core, 3, tooth portion mold core, 4, apron, 41, locating pin hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, a components of a whole that can function independently well mould for high strength high accuracy sprocket, includes base 1, base 1 central part is equipped with the base inner chamber, the central part of base 1 inlays through the base inner chamber and has boss mold core 2, the outside end of boss mold core 2 is equipped with apron 4, 4 central parts of apron are equipped with the apron inner chamber, the central part of base 1 inlays through the apron inner chamber and has tooth portion mold core 3 for plastic sprocket tooth portion, and boss mold core 2 butt is to tooth portion mold core 3 on the side end face, apron 4 is through corresponding bolt and base 1 looks rigid coupling, in this embodiment, through eight M12 high strength bolts looks rigid coupling.
The bottom of the inner cavity of the base is reserved with a hanging table 11 used for abutting against the inner side end of the boss mold core 2, the pressure bearing capacity in the finishing process is improved, the mold is prevented from being pressed out in the finishing process, and in the embodiment, the lower punching through hole is formed in the center of the hanging table 11, so that the lower punching is facilitated.
The boss mold core 2 is embedded into the inner cavity of the base 1 in a shrink fit mode, and the pressure bearing capacity in the finishing process is further improved.
The tooth part mold core 3 is embedded into the cover plate inner cavity of the cover plate 4 in a shrink fit mode, the parallelism of the end faces is controlled within 0.005, and the pressure bearing capacity in the finishing process is improved.
Be equipped with a plurality of locating pin hole 41 on apron 4 for with corresponding locating pin cooperation, avoid the emergence rotation in the use, in this embodiment, set up four locating pin holes 41 and corresponding locating pin, still set up two screw holes in addition on apron 4, conveniently carry the mould.
The base 1 is made of alloy steel, and the boss mold core 2 and the tooth part mold core 3 are made of hard alloy.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a well mould in components of a whole that can function independently for high strength high accuracy sprocket, includes base (1), its characterized in that, base (1) central part is equipped with the base inner chamber, the central part of base (1) is inlayed through the base inner chamber and is had boss mold core (2), the outside end of boss mold core (2) is equipped with apron (4), apron (4) central part is equipped with the apron inner chamber, the central part of base (1) is inlayed through the apron inner chamber and is had tooth portion mold core (3) for plastic sprocket tooth portion, and boss mold core (2) butt is to the side end face of tooth portion mold core (3), apron (4) are through corresponding bolt and base (1) looks rigid coupling.
2. The split middle mold for the high-strength high-precision chain wheel according to claim 1, wherein a hanging table (11) is reserved at the bottom of the inner cavity of the base and used for abutting against the inner side end of the boss mold core (2) so as to improve the pressure bearing capacity in the finishing process.
3. The split middle mold for the high-strength high-precision chain wheel according to claim 2, wherein the boss mold core (2) is embedded into the base inner cavity of the base (1) in a shrink fit manner, so that the pressure bearing capacity in the finishing process is further improved.
4. The split middle mold for the high-strength high-precision sprocket wheel according to claim 1 or 3, wherein the toothed mold cores (3) are embedded into the cover plate inner cavity of the cover plate (4) in a shrink fit manner, so that the bearing capacity in the finishing process is improved.
5. The split middle mold for the high-strength high-precision chain wheel according to claim 1, wherein the cover plate (4) is provided with a plurality of positioning pin holes (41) for matching with corresponding positioning pins to avoid rotation in use.
6. The split middle mold for the high-strength high-precision chain wheel according to claim 1, wherein the base (1) is made of alloy steel, and the boss core (2) and the tooth core (3) are made of hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739170.5U CN214079252U (en) | 2020-11-24 | 2020-11-24 | Split middle die for high-strength high-precision chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739170.5U CN214079252U (en) | 2020-11-24 | 2020-11-24 | Split middle die for high-strength high-precision chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214079252U true CN214079252U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022739170.5U Active CN214079252U (en) | 2020-11-24 | 2020-11-24 | Split middle die for high-strength high-precision chain wheel |
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| CN (1) | CN214079252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355307A (en) * | 2020-11-24 | 2021-02-12 | 苏州莱特复合材料有限公司 | Split middle die for high-strength high-precision chain wheel |
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2020
- 2020-11-24 CN CN202022739170.5U patent/CN214079252U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355307A (en) * | 2020-11-24 | 2021-02-12 | 苏州莱特复合材料有限公司 | Split middle die for high-strength high-precision chain wheel |
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