CN204711005U - Folding base mould in a kind of retainer forming technology - Google Patents

Abstract

The utility model relates to a mold for folding the bottom edge in the forming process of a cage, which comprises a punch and a pressing block, the pressing block is arranged on the upper end of the punch and acts on the punch downward; the punch includes a base, The truncated cone arranged on the base and a plurality of bosses evenly distributed on the conical surface of the truncated cone in the circumferential direction, the guiding and positioning grooves for the workpiece of the cage are formed between two adjacent bosses. Its beneficial effects are: it is well matched with the new processing technology of the cage, so that the bottom edge of the tapered workpiece in the new processing process can be folded at one time, and by setting the trapezoidal block on the hypotenuse of the punch, the workpiece can be placed in the mold The positioning is fixed, so that the operation is simple and efficient, and at the same time, the required processing accuracy can be guaranteed.

Description

A mold for folding the bottom edge in the forming process of the cage

technical field

The utility model relates to the technique of folding the bottom edge of a workpiece in the forming process of a cage, in particular to a mold for folding the bottom edge in the forming process of a cage.

Background technique

There are such defects in the processing method of the bearing cage. First, the material is cut into a circle, and there are many discarded scraps, which cause serious material waste and low raw material utilization rate, which is only 12-25%. The designed structure needs to be realized by cutting. It not only increases energy consumption but also increases material consumption, and also increases the occupation time of the product manufacturing process, so that the production efficiency is low and the production cost is high.

If a new processing technology is provided for the improvement of the cutting shape of the raw material, the matching of the corresponding mold is required. For example, the raw material is first cut into a rectangular shape, and then the rectangular material is circled and the tapered surface is stretched, which will greatly reduce the discarded scrap. In the above processing method, the bottom edge of the tapered workpiece needs to be folded.

Utility model content

The purpose of the utility model is to provide a supporting mold for folding the bottom edge of the workpiece of the cage during the new processing process of the bearing cage.

In order to achieve the above object, the bottom edge mold in the cage forming process described in the utility model includes a punch and a pressing block, and the pressing block is arranged on the upper end of the punch and acts downward on the punch; The convex mold includes a base, a truncated cone arranged on the base, and a plurality of bosses uniformly distributed on the conical surface of the truncated cone in the circumferential direction, and guide positioning grooves for the workpiece of the cage are formed between two adjacent bosses.

A preferred boss setting scheme is a trapezoidal block.

In order to ensure the positioning of the workpiece and guide the trapezoidal block to the upper end of the conical frustum, it is distributed downward.

A preferred configuration of the pressing block is a cylinder.

The beneficial effect of the mold for folding the bottom edge of the utility model is that: it is well matched with the new processing technology of the cage, so that the tapered workpiece in the new processing process can complete the bottom edge folding at one time, and by setting the bottom edge on the hypotenuse of the punch The trapezoidal block makes the workpiece fixed in the mold, so that the operation is simple and efficient, and at the same time, the required processing accuracy can be guaranteed.

Description of drawings

Fig. 1 is a schematic structural view of the punch of the bottom-folding mold.

Fig. 2 is a top view of the mold base shown in Fig. 1 .

Fig. 3 is a schematic cross-sectional view of the workpiece at its initial position.

Fig. 4 is a schematic cross-sectional view during the pressing down process of the briquetting block.

In the figure: 1 is a conical truncated block, 2 is a trapezoidal block, 3 is a base, 4 is a workpiece, and 5 is a pressing block.

Detailed ways

The utility model is a mold used for folding the processed parts of the bearing cage processed by a brand-new process. Xingong passes the processed parts of the cage with a tapered shape and evenly distributed holes on the tapered surface through the folding bottom of the utility model. The side mold is folded to form the required bearing cage. The utility model will be further described below in conjunction with a specific mold for folding the bottom edge.

As shown in Figures 1 and 2, the mold is mainly composed of a pressing block 5 and a punch, and the punch includes a base 3 and a conical frustum 1. The conical frustum 1 is arranged on the base 3, and several bosses 2 are evenly distributed on the conical surface thereon, and the bosses 2 are arranged downward from the upper edge of the conical frustum 3 along the direction of the generatrix of the conical surface. The boss 2 is a trapezoidal block, and a workpiece guiding and positioning groove is formed between two adjacent trapezoidal blocks 2, which is used for positioning the folded workpiece. The hole on the conical surface of the workpiece is embedded in the boss 2. A certain movement can be carried out relative to the mold along the above-mentioned guide positioning groove.

The briquetting block 5 is cylindrical, and is coaxially arranged above the punching die. The briquetting block 5 of this embodiment is cylindrical. Driven by a hydraulic cylinder, it acts downward on the punch, see Figure 3, and bends the upper edge higher than the punch, see Figure 4, to form a cage.

Claims (4)

1. A bottom-folding die in a cage forming process, characterized in that: it comprises a punch and a briquetting block, and the briquetting block is arranged at the upper end of the punch and acts on the punch downwards; the punch includes The base, the truncated cone arranged on the base, and a plurality of bosses evenly distributed on the conical surface of the truncated cone in the circumferential direction, form a guiding and positioning groove for the workpiece of the cage between two adjacent bosses. 2 . The bottom-folding mold in the cage forming process according to claim 1 , wherein the boss is a trapezoidal block. 3 . 3 . The bottom-folding die in the cage forming process according to claim 2 , wherein the trapezoidal blocks are distributed downward from the upper end of the truncated cone. 4 . 4. The bottom-folding mold in the cage forming process according to claim 1, wherein the pressing block is a cylinder.