CN104275386A - Reverse punching method of silence retainer - Google Patents

Abstract

The invention provides a back punching method for a silent retainer. After stamping a wave surface and a plane in sequence, the formed wave surface is used as the first surface of the silent retainer, and the formed plane is used as the second surface of the silent retainer. , the punching operation is carried out in the middle part of the plane, and the punching operation is carried out in the punching direction of the second face to the first face, and a round hole with a diameter of 0.8-1.2mm is obtained to complete the punching operation, which is different from the traditional production method Compared with the back punching method of this kind of silent retainer, the traditional punching direction is changed from positive punching to recoil, so that the burrs are formed outside the assembly surface of the silent retainer, thus avoiding the burrs after punching The contact surface of the silent retainer forms a gap to affect the assembly of the silent retainer, so as to improve the assembly accuracy of the silent retainer, so that the balls in the bearing can swim well, and can effectively reduce noise and be easy to use.

Description

Back-punching hole method for silent retainer

technical field

The present invention relates to a back punching method of a silent retainer.

Background technique

In the production process of the silent retainer, it is necessary to punch the silent retainer, and the punching hole is used to install the rivet. However, in the traditional production of the silent retainer, after the direct punching of the silent retainer, when the silent retainer needs to be used in pairs, because the opposite silent retainer has burrs in the holes after punching, the silent retainer The contact surface cannot be flat, which will affect the use effect of the silent retainer. The above-mentioned problems should be considered and solved during the production and use of the mute holder.

Contents of the invention

The purpose of the present invention is to provide a back punching method for the silent retainer to solve the problem in the prior art that the contact surface of the silent retainer cannot be smooth due to the burrs left in the punched hole of the relative silent retainer. And affect the problem of the use effect of the silent retainer.

Technical solution of the present invention is:

A back punching method for a silent retainer, comprising the following production steps,

Step 1: Use a wave stamping die to stamp the wavy surface of the bearing ring, so that the surface where the wave crest of the wavy surface is located is divided into the first surface and the second surface with the bearing ring as the boundary;

Step 2: Use a plane stamping die to carry out stamping plane operation on the wave crest of the wavy surface on the second surface of the bearing ring, so that the bearing ring forms a shape in which the first surface is a wavy surface and the second surface is a plane, and then performs punching operation;

Step 3: In the punching operation of the bearing ring, use the punching die to perform punching operations in the middle of the plane of the second surface of the bearing ring, with the second facing the punching direction of the first surface, and the obtained aperture is 0.8-1.2mm round hole, to complete the punching operation.

Preferably, the stamped wavy surface and the plane of the silent retainer are sequentially arranged to intersect.

Preferably, in the first step, the bearing ring is stamped by a wave stamping die to form a wave surface with a peak height of 2-7 mm.

Preferably, in the second step, the bearing ring is stamped by a plane stamping die to form a plane with a width of 3-6 mm.

Preferably, the number of the wavy surfaces and the planes are both 6-8.

Preferably, the stamped wavy surface and the flat surface in the step 1 and step 2 are formed by one-time stamping with a wavy flat integral mold.

The present invention is a back punching method for a silent retainer. After stamping the wave surface and the plane in sequence, the formed wave surface is used as the first surface of the silent retainer, and the formed plane is used as the second surface of the silent retainer. The punching operation is carried out in the middle part of the plane, and the punching operation is carried out in the punching direction of the second face to the first face, and a round hole with a diameter of 0.8-1.2mm is obtained, and the punching operation is completed, which is similar to the traditional production method. For example, the back punching method of this kind of silent retainer is changed from the forward punch in the traditional punching direction to recoil, so that the burrs are formed outside the assembly surface of the silent retainer. This kind of back punching method of the silent retainer changes the direction of the burrs formed after punching by changing the direction of punching the silent retainer, so that the burrs are located outside the contact surface of the silent retainer, thus avoiding the punching after punching. The burrs form a gap on the contact surface of the silent retainer and affect the assembly of the silent retainer to improve the assembly accuracy of the silent retainer, so that the balls in the bearing can swim well, and can effectively reduce noise and be easy to use.

In the back punching method of the silent retainer, in the first step, the bearing ring is stamped by a wave stamping die to form a wave surface with a peak height of 2-7mm, and in the second step, the bearing ring is stamped by a plane stamping die The width of the formed plane is 3-6mm, and the peak height of the wavy surface can be the same as the width of the plane, so that the balls in the bearing can swim better, so as to achieve a better use effect of the silent retainer. The stamped wavy surface and plane in the step 1 and step 2 are formed by one stamping of the wavy plane integral mold, thereby saving operation time and improving production efficiency.

The beneficial effect of the present invention is that: a back punching method of the silent retainer of the present invention changes from the forward punch in the traditional punching direction to recoil, so that the burrs are formed outside the assembly surface of the silent retainer. This kind of back punching method of the silent retainer changes the direction of the burrs formed after punching by changing the direction of punching the silent retainer, so that the burrs are located outside the contact surface of the silent retainer, thus avoiding the punching after punching. The burrs form a gap on the contact surface of the silent retainer and affect the assembly of the silent retainer to improve the assembly accuracy of the silent retainer, so that the balls in the bearing can swim well, and can effectively reduce noise and be easy to use.

Detailed ways

Preferred embodiments of the present invention will be described in detail below.

This embodiment provides a back-punching method for a silent retainer, including the following production steps,

Use a wave stamping die to stamp the wave surface of the bearing ring, so that the surface where the wave crest of the wave surface is located is divided into the first surface and the second surface with the bearing ring as the boundary; use a plane for the wave crest of the wave surface on the second surface of the bearing ring The stamping dies are all used for stamping plane operations, so that the bearing ring forms a shape with a wave surface on the first side and a flat surface on the second side, and then performs punching operations; in the punching operation of the bearing ring, use the punching die on the bearing The middle part of the plane of the second surface of the ring is punched in the same direction as the second surface and the first surface to obtain a circular hole with a diameter of 0.8-1.2 mm, preferably 1.0 mm, to complete the punching operation. The stamped wavy surface of the silent retainer intersects with the plane in turn, and the bearing ring is stamped by a wavy stamping die to form a wave surface with a peak height of 2-7mm, preferably 4mm. The bearing ring is stamped by a plane stamping die to form a plane with a width of 3-6mm, preferably 4mm. The number of the wavy surface and the plane is 6-8, preferably 7. Stamping wavy surface and flat surface are formed by one-time stamping of wavy flat integrated mold.

In this embodiment, a back punching method of the silent retainer, after stamping the wavy surface and the stamping plane in sequence, the formed wave surface is used as the first surface of the silent retainer, and the formed plane is used as the second surface of the silent retainer , all carry out punching operation in the middle part of forming plane, and all carry out punching operation with the punching direction of the first face of the second face, obtain the aperture and be 0.8-1.2mm, be preferably the circular hole of 1.0mm, finish punching operation , Compared with the traditional production method, the back punching method of this silent retainer is changed from the forward punch in the traditional punching direction to the recoil, so that the burrs are formed outside the assembly surface of the silent retainer. This kind of back punching method of the silent retainer changes the direction of the burrs formed after punching by changing the direction of punching the silent retainer, so that the burrs are located outside the contact surface of the silent retainer, thus avoiding the punching after punching. The burrs form a gap on the contact surface of the silent retainer and affect the assembly of the silent retainer to improve the assembly accuracy of the silent retainer, so that the balls in the bearing can swim well, and can effectively reduce noise and be easy to use.

The back punching method of this kind of silent retainer, the bearing ring is stamped by a wave stamping die to form a wave surface with a peak height of 2-7mm, preferably 4mm, and the bearing ring is stamped by a plane stamping die to form a plane width 3-6mm, preferably 4mm, where the peak height of the wavy surface can be the same as the width of the plane, so that the balls in the bearing can swim better, so as to achieve a better use effect of the silent retainer. Stamping wavy surface and flat surface are formed by one stamping of the wavy flat integrated mold, which saves operating time and improves production efficiency.

The beneficial effect of this embodiment is: this embodiment is a recoil punching method for the silent retainer, which changes the traditional punching direction from forward punching to recoil, so that the burrs are formed outside the assembly surface of the silent retainer. This kind of back punching method of the silent retainer changes the direction of the burrs formed after punching by changing the direction of punching the silent retainer, so that the burrs are located outside the contact surface of the silent retainer, thus avoiding the punching after punching. The burrs form a gap on the contact surface of the silent retainer and affect the assembly of the silent retainer to improve the assembly accuracy of the silent retainer, so that the balls in the bearing can swim well, and can effectively reduce noise and be easy to use.

Claims (6)

1. an anti-hole-punching method for quiet retainer, is characterized in that: comprise following production stage,

Step one: use wave diel to carry out punching press wavy surface to bearing annulus, make the face, crest place of wavy surface with bearing annulus for boundary is divided into first surface and second;

Step 2: use flat die mould all to carry out punching press plane operations to the crest of the wavy surface of bearing annulus second, make bearing annulus formed first surface be wavy surface, second be carry out punch operation after the shape of plane;

Step 3: carrying out in punch operation to bearing annulus, uses punching die in the in-plane of second of bearing annulus, all carries out punch operation, obtain the circular hole that aperture is 0.8-1.2mm, complete punch operation with second towards the punching direction of first surface.

2. the anti-hole-punching method of quiet retainer as claimed in claim 1, is characterized in that: wavy surface and the plane of the punching press of described quiet retainer are arranged in a crossed manner successively.

3. the anti-hole-punching method of quiet retainer as claimed in claim 1, is characterized in that: carrying out to bearing annulus the crest height that punching press forms wavy surface by wave diel in described step one is 2-7mm.

4. the anti-hole-punching method of the quiet retainer as described in any one of claim 1-3, is characterized in that: carrying out to bearing annulus the width that punching press forms plane by flat die mould in described step 2 is 3-6mm.

5. the anti-hole-punching method of the quiet retainer as described in any one of claim 1-3, is characterized in that: the quantity of described wavy surface and plane is 6-8.

6. the anti-hole-punching method of the quiet retainer as described in any one of claim 1-3, is characterized in that: the punching press wavy surface in described step one and step 2 and plane are formed by the punching press of wave plane integration mold.