CN103737059A - Machining method for equiaxial slim holes used for supporting front brake adjusting arm casting - Google Patents

Abstract

The invention discloses a machining method for equiaxial slim holes used for supporting a front brake adjusting arm casting. The machining method mainly includes the following steps that (1), the three sets of slim holes are formed in the surface of the casting, each set of slim holes is composed of two holes side by side in a row, and the three sets of slim holes comprise through holes with the diameter phi of 2.8 mm, through holes with the diameter phi of 13mm and stepped holes with the diameter phi of 15mm; (2), the left side and the right side of each set of slim holes are respectively provided with an end face, and M 10 threads are arranged on the periphery of each end face; (3), a key is formed in each end face, wherein the same coaxiality is kept for the through holes with the diameter phi of 2.8 mm, the through holes with the diameter phi of 13mm and the stepped holes with the diameter phi of 15mm. The machining method has the advantages that the casting produced through the method can improve brake stability and tensile strength and bear vibration or impact, and is suitable for mass production, low in cost and convenient to improve according to different machine types.

Description

A kind of processing method such as pore such as axle such as grade of adjusting arm foundry goods for supporting front brake

Technical field

The present invention relates to automobile technical field, relate in particular to a kind of processing method such as pore such as axle such as grade of adjusting arm foundry goods for supporting front brake.

Background technology

Progress along with technology; the front brake of automobile is adjusted arm shell and is being brought into play more and more important effect; its Main Function is front brake to be adjusted to arm support and protect, and Ta center is a splined hole, and outside is worm-gear toothing; there is a worm shaft side; on head, have a four directions, adjust brake use, outermost has a hole; dress pin connects wheel cylinder, and hole and keyway and axle coordinate transmitting torque to reach the effect of adjusting brake.Foundry goods is wherein for supporting and protection front brake adjustment arm; while is carry-over moment also, therefore part is had to some strength requirement, should possess certain tensile strength and can bear vibrations or impact; if these foundry goods are produced in enormous quantities, need lower cost.

Thereby the arm foundry goods of processing, the particularly processing for this part center pore adjust to(for) front brake exist certain drawback, therefore, for above aspect, need to make effective innovation.

Summary of the invention

The object of this invention is to provide a kind ofly improve brake degree of stability, can improve tensile strength, can bear vibration or impact, be applicable to producing in enormous quantities, being convenient to improve according to different automobile types for support front brake adjust arm foundry goods etc. axle pore processing method, to solve many deficiencies of prior art.

Object of the present invention is carried out specific implementation by the following technical programs:

A processing method such as pore such as axle such as grade of adjusting arm foundry goods for supporting front brake, is mainly comprised of following steps:

(1) at cast(ing) surface, three groups of pores and every group of pore are set and by two, are listed as a hole of walking crosswise and form, these three groups of pores comprise φ 12.8mm through hole, φ 13mm through hole, φ 15mm shoulder hole;

(2) being positioned at three groups of pores each side arranges an end face and is positioned at the broken ends of fractured bone face periphery M10 screw thread is set;

(3) on end face, offer key, φ 12.8mm through hole wherein, φ 13mm through hole, φ 15mm shoulder hole keep identical axiality.

The beneficial effect that waits axle pore processing method of adjusting arm foundry goods for supporting front brake of the present invention is: the foundry goods of producing by the method can improve brake degree of stability, can improve tensile strength, can bear vibration or impact, be applicable to producing in enormous quantities, cost is lower, is convenient to improve according to different automobile types.

The specific embodiment

Described in the embodiment of the present invention, for supporting front brake, adjust the processing method such as pore such as axle such as grade of arm foundry goods, mainly by following steps, formed:

(1) at cast(ing) surface, three groups of pores and every group of pore are set and by two, are listed as a hole of walking crosswise and form, these three groups of pores comprise φ 12.8mm through hole, φ 13mm through hole, φ 15mm shoulder hole;

(2) being positioned at three groups of pores each side arranges an end face and is positioned at the broken ends of fractured bone face periphery M10 screw thread is set;

(3) on end face, offer key, φ 12.8mm through hole wherein, φ 13mm through hole, φ 15mm shoulder hole keep identical axiality.

Claims (1)

1. for supporting front brake, adjust a processing method such as pore such as axle such as grade for arm foundry goods, it is characterized in that, mainly by following steps, formed:

(1) at cast(ing) surface, three groups of pores and every group of pore are set and by two, are listed as a hole of walking crosswise and form, these three groups of pores comprise φ 12.8mm through hole, φ 13mm through hole, φ 15mm shoulder hole;

(2) being positioned at three groups of pores each side arranges an end face and is positioned at the broken ends of fractured bone face periphery M10 screw thread is set;

(3) on end face, offer key, φ 12.8mm through hole wherein, φ 13mm through hole, φ 15mm shoulder hole keep identical axiality.