CN202087828U

CN202087828U - Powder metallurgy pressing mold for manufacturing inner gears of automobile high-speed starters

Info

Publication number: CN202087828U
Application number: CN2011201710851U
Authority: CN
Inventors: 余湘美; 熊凤英
Original assignee: HANSHOU COUNTY XINXIANG POWDER METALLURGY Co Ltd
Current assignee: HANSHOU COUNTY XINXIANG POWDER METALLURGY Co Ltd
Priority date: 2011-05-26
Filing date: 2011-05-26
Publication date: 2011-12-28
Anticipated expiration: 2021-05-26

Abstract

A powder metallurgy pressing mold for manufacturing inner gears of automobile high-speed starters comprises an upper and lower end surface press mold, a mandrel and a pressing forming concave mold. A tooth-shaped structure matching with the mandrel is arranged in an inner hole of the upper and lower end surface press mold, an inner hole of the pressing forming concave mold is provided with a tooth-shaped structure matching with outer teeth of the upper and lower end surface press mold, the upper and lower end surface press mold matches with the mandrel via the teeth, and the pressing forming concave mold matches with the upper and lower end surface press mold via the teeth. The powder metallurgy pressing mold realizes one-step pressing forming of powder metallurgy, resolves problems that existing machinery wastes time and labor when in processing, is high in rejection rate and the like, simultaneously can be used for realizing mass production of the inner gears of the automobile high-speed starters, increases production efficiency, and reduces manufacturing cost of enterprises.

Description

A kind of powder metallurgy pressing mould of making automobile high-speed starter internal gear

Technical field

The utility model belongs to powder metallurgy die manufacturing technology field, is specifically related to a kind of powder metallurgy pressing mould that is used to make automobile high-speed starter internal gear.

Background technology

When automobile high-speed starts, need the engagement of internal gear gear ring and driven wheel, gear ring drives driven wheel and rotates at a high speed.The high-speed starting of automobile has determined the dimensional accuracy of internal gear and inherent quality to require all than higher, thereby manufacture difficulty is also big.Present this internal gear is mainly made by mach mode by steel part forging and pressing back, and that the method for machining exists processing usually is not meticulous, the part percent defective height that processes, and also machining wastes time and energy, and increased the production cost of enterprise.Along with the continuous development of technology, adopting the powder metallurgy process car parts that steam next life is a kind of solutions preferably, and other producers also do not have a kind of powder metallurgy pressing mould that automobile high-speed starts gear ring that is used for specially making at present.

The utility model content

At the deficiency that above-mentioned prior art exists, the utility model provides a kind of powder metallurgy pressing mould that is used to make automobile high-speed starter internal gear, has realized producing purposes such as high accuracy, high efficiency, the percent defective of product is low.

A kind of powder metallurgy pressing mould of making automobile high-speed starter internal gear, comprise upper and lower end face pressing mold, core bar, compression moulding die, the endoporus of upper and lower end face pressing mold has the dentalation that matches with core bar, the dentalation that the endoporus of compression moulding die has the external teeth with the upper and lower end face pressing mold to match, the upper and lower end face pressing mold cooperates by tooth with core bar, and the compression moulding die cooperates by tooth with the upper and lower end face pressing mold.

Advantage of the present invention is: the utility model is with a compression moulding of powder metallurgy, problems such as machining wastes time and energy, percent defective height have been solved in the past, utilize the utility model can produce automobile high-speed starter internal gear in enormous quantities simultaneously, improve production efficiency, reduced enterprise's manufacturing cost.

Description of drawings

Fig. 1 is the utility model part assembly drawing.

Fig. 2 is the cutaway view of upper and lower end face described in the utility model pressing mold.

Fig. 3 is the vertical view of upper and lower end face described in the utility model pressing mold.

Fig. 4 is the side view of core bar described in the utility model.

Fig. 5 is the vertical view of core bar described in the utility model.

Fig. 6 is the cutaway view of compression moulding die described in the utility model.

Fig. 7 is the vertical view of compression moulding die described in the utility model.

Fig. 8 is the gear ring structure schematic diagram of the utility model compression moulding.

The specific embodiment

Now in conjunction with the accompanying drawings, the utility model is further described.

As Fig. 1-shown in Figure 8, a kind of powder metallurgy pressing mould of making automobile high-speed starter internal gear, comprise upper and lower end face pressing mold 1, core bar 2, compression moulding die 3, the endoporus of upper and lower end face pressing mold 1 has the dentalation that matches with core 2, the dentalation that the endoporus of compression moulding die 3 has the external teeth with upper and lower end face pressing mold 1 to match, upper and lower end face pressing mold 1 and core bar 2 cooperate by tooth, and compression moulding die 3 and upper and lower end face pressing mold 1 cooperate by tooth.Wherein upper and lower end face pressing mold 1 is used for the main part of moulding high-speed starting machine internal gear, and core bar 2 is used for the inside dentalation of moulding starter internal gear, and compression moulding die 3 is used for the outside dentalation of moulding starter internal gear.

Claims

1. powder metallurgy pressing mould of making automobile high-speed starter internal gear, comprise upper and lower end face pressing mold (1), core bar (2), compression moulding die (3), it is characterized in that: the endoporus of upper and lower end face pressing mold (1) has the dentalation that matches with core bar (2), the dentalation that the endoporus of compression moulding die (3) has the external teeth with upper and lower end face pressing mold (1) to match, upper and lower end face pressing mold (1) cooperates by tooth with core bar (2), and compression moulding die (3) cooperates by tooth with upper and lower end face pressing mold (1).