CN204974963U - Side cut pushes away tooth integration mould - Google Patents

Abstract

The utility model discloses an integrated mold for trimming and pushing teeth, which is used for integrally forming the trimming and pushing teeth of automobile steering wheel blanks. An upper mold that can move relative to it and cooperate with it is arranged above the lower mold, and a cutting knife for trimming the circumference of the blank to be processed is fixed on the upper mold, and a cutting knife for trimming the circumference of the blank to be processed is fixed on the upper mold. A pushing knife with a spline pushing tooth in the middle hole, wherein a pressing plate which moves relative to it and is used for pressing and positioning the blank to be processed is arranged on the upper die. The utility model has the advantages of simple structure, convenient operation and use, and can realize the integrated molding of edge trimming and tooth pushing on the hydraulic press, which simplifies the traditional processing technology, reduces the cost of the manufacturing process, and improves the production efficiency.

Description

Trimming and Pushing Teeth Integrated Mold

technical field

The utility model relates to an integrated mold for edge trimming and tooth pushing, in particular to an integrated mold for edge trimming and tooth pushing for die-casting blanks of automobile steering wheels, cleaning flashes and forming spline tooth grooves.

Background technique

At present, the forming process of automobile steering wheel mainly includes: die-casting-trimming-teeth pulling-grinding-packing and shipping. The broaching process is performed after the edge process, and the processing is relatively complicated. Therefore, people are committed to combining the edge trimming and broaching processes to form an integrated structure of edge trimming and broaching. For example, the patent authorization announcement number CN200960536Y patent name is a kind of automatic push tooth forming mold for manufacturing metal zippers, which are respectively provided with upper trimming knife, lower trimming knife and shearing fit on the upper mold and the lower mold. The matching upper gear cutter and lower gear cutter have simple structure, fast production speed and can be produced in batches. However, the trimming and tooth pulling process of the automobile steering wheel is different. The spline tooth groove cannot be punched in place at one time. Only relying on the mold to realize the pressing device cannot meet the punching stroke. This technical difficulty must be solved in order to realize the integrated molding of edge trimming and tooth pushing on the hydraulic press, so that the forming process of the automobile steering wheel is changed to: die casting-cutting Pushing tooth-grinding-packing and shipping.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the utility model aims to provide an integrated mold for edge trimming and tooth pushing. The traditional processing technology is simplified, the manufacturing process cost is reduced, and the production efficiency is improved.

In order to achieve the above purpose, the technical solution of the utility model is: an integrated mold for trimming and pushing teeth, which is used to integrally form the trimming and pushing teeth of the blank of the automobile steering wheel, which includes a lower mold and an upper mold for processing the blank to be processed. The end surface is supported and positioned on the support seat, and an upper mold that can move toward it and cooperate with it is arranged above the lower mold, and a cutting knife for trimming the circumference of the blank to be processed is fixed on the upper mold, and A pushing knife for spline pushing teeth on the middle hole of the blank to be processed, wherein a pressing plate that moves relatively thereto and is used for pressing and positioning the blank to be processed is provided on the upper die.

Further, the push knife is a stepped step push knife.

Further, the upper part of the upper mold is provided with a first oil cylinder to drive the upper mold to lift.

Further, a second oil cylinder is fixed inside the upper die, and the second oil cylinder is fixedly connected to the pressure plate through a push rod, and the push rod relatively slides on the upper die and is connected with the blank to be processed. relatively.

Further, a process withdrawal hole is provided in the middle of the lower mold.

When in use, start the running switch of the equipment, the main cylinder of the hydraulic machine, namely the first oil cylinder, drives the upper mold to press down, and the whole mold starts to close the mold. When the main cylinder is pressed down to the set position, it will switch to slow speed, and at the same time start the auxiliary cylinder, which is the second oil cylinder to drive The pressure plate is pressed down to press the blank to be processed, and the main cylinder continues to run, driving the cutter and the push knife to trim the blank to be processed respectively, and the spline to push the teeth. When the push and trim are completed, the master cylinder rises , when the push knife is fully returned to the product, the auxiliary cylinder stops and the pressure plate resets, that is, the entire edge trimming and tooth pushing process is completed.

The beneficial effects of the utility model: the structure is simple, the operation is convenient, and the integrated forming of edge trimming and tooth pushing can be realized on the hydraulic press, which simplifies the traditional processing technology, reduces the cost of the manufacturing process, and improves the production efficiency.

Description of drawings

Fig. 1 is the use state schematic diagram when the utility model mold opening;

Fig. 2 is a schematic diagram of the use state of the utility model when the mold is closed.

detailed description

The utility model will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

An integrated mold for trimming and pushing teeth as shown in Figure 1 and Figure 2, which is used to integrally form the trimming and pushing teeth of the automobile steering wheel blank, which includes a lower mold 2 and an end surface support for the blank 3 to be processed The positioning support seat 22 is provided with an upper mold 1 that can move toward it and cooperate with it above the lower mold 2, and a cutting tool for trimming the circumference of the blank 3 to be processed is fixed on the upper mold 1. Knife 11, and the pushing knife 14 that spline pushes the teeth of the hole in the blank 3 to be processed, wherein the upper mold 1 is provided with a relative movement and is used to compress the blank 3 to be processed Position the platen 12.

When in use, in the process of clamping the upper mold 1, after pressing and positioning the blank 3 to be processed by the pressure plate 12, the upper mold 1 continues to close the mold, and the blank 3 to be processed is pressed by the cutter 11 and the push knife 14. 3 Edge trimming and tooth pushing can be carried out on the hydraulic press at the same time, which simplifies the traditional processing technology, reduces the cost of the manufacturing process, and improves the production efficiency.

Preferably, the push knife 14 is a stepped step push knife, and the push knife stroke of the push knife 14 can reach 150-200mm, replacing the traditional broach structure.

Specifically, the upper part of the upper mold 1 is provided with a first oil cylinder (not shown) that drives the upper mold 1 to lift and lower, that is, the master cylinder of the hydraulic press, which is mainly used for the clamping power between the upper mold 1 and the lower mold 2. enter. A second oil cylinder 10 is fixed in the upper mold 1, and the second oil cylinder 10 is fixedly connected to the pressure plate 12 through the ejector rod 13, and the ejector rod 13 slides relatively on the upper mold 1 and is connected with the blank to be processed. The parts 3 are opposite to each other, and an ejection mechanism or pressing device is formed by the second oil cylinder 10, the ejector rod 13 and the pressure plate 12 to meet the punching stroke of the mould, and the structure is simple.

Finally, a process tool withdrawal hole 21 is provided in the middle of the lower die 2, which is used for the process hole when the push knife 14 is fed and withdrawn, so as to ensure the normal edge trimming and tooth push operation of the entire mold.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (5)

1. a trimming tooth pushing integrated mould, for one-body molded to the trimming tooth pushing of car steering wheel blank, it is characterized in that: comprise counterdie (2) and on treat the supporting seat (22) that machining blanks part (3) carries out end face supporting and location, being provided with in this counterdie (2) top can move toward one another and the patrix matched (1) with it, this patrix (1) is installed with the cutting knife (11) described blank to be processed (3) circumference being carried out to trimming, and described blank to be processed (3) mesopore is carried out to the push broach (14) of spline tooth pushing, wherein, described patrix (1) is provided with motion in contrast and carries out compressing the platen (12) of locating for treating machining blanks part (3).

2. trimming tooth pushing integrated mould according to claim 1, is characterized in that: described push broach (14) is step-by-step stepped push broach.

3. trimming tooth pushing integrated mould according to claim 1, is characterized in that: described patrix (1) top is provided with orders about the first oil cylinder that this patrix (1) makes lifting action.

4. trimming tooth pushing integrated mould according to claim 3, it is characterized in that: in described patrix (1), be installed with the second oil cylinder (10), this second oil cylinder (10) is affixed by push rod (13) and described platen (12), and this push rod (13) relative sliding is upper and relative with described blank to be processed (3) in described patrix (1).

5. trimming tooth pushing integrated mould according to claim 1, is characterized in that: be provided with technique withdrawing hole (21) at described counterdie (2) middle part.