Abrasive Block Layered Compression Forming Method and Forming Device

Abstract

The invention relates to an abrasive block layered press forming method and a forming device thereof. The abrasive block layer press forming method comprises the following steps of firstly, dividing the profile of an abrasive block into at least two parts, and adjusting the vertical height of a lower press head through a driving mechanism; secondly, feeding a first part of the profile into a die cavity, and performing bidirectional pressing on the first part of the profile through cooperation of an upper press head, the lower press head and a reverse pressing mechanism; thirdly, moving upwards and resetting the upper press head, driving the lower press head to move downwards through the driving mechanism, feeding the second part of the profile into the die cavity, performing bidirectional pressing on the second part of the profile, repeating the third step until pressing the nth part of the profile is completed, wherein all the bidirectionally-pressed parts of the profile together compose the blank of the abrasive block. The abrasive block layered press forming method achieves layered press forming of the abrasive block and accordingly reduces the structural density differences among different positions of the abrasive block. The invention also provides the abrasive block layered press forming device specially designed for implementing the abrasive block layered press forming method.

Description

technical field [0001] The invention relates to a layered pressing molding method of abrasive blocks and a molding device thereof. Background technique [0002] Ceramic superabrasive products such as grinding wheels occupy an important position in the field of grinding, and their specific structures are as follows figure 1 As shown: Including the substrate 1 and the abrasive layer fixed on the substrate through the adhesive 2, in the preparation process of superabrasive products (especially large-diameter products), the preparation process of the integral abrasive layer is difficult to achieve, and usually requires The abrasive layer is made into a plurality of abrasive blocks 3, and then each abrasive block is spliced ​​into a whole abrasive layer by bonding. That is to say, the abrasive block is the main part of the product participating in the grinding process. The preparation process of the abrasive block directly affects the use performance and processing quality of th...

AI Technical Summary

Problems solved by technology

The existing problems of this molding method are: 1. The two-way pressing is realized step by step, and there are differences in the two pressures, which makes it difficult to control the density consistency in the thickness direction of the profile. The operation of removing the lower block is not only in the preparation The steps in the process are cumbersome, and the positioning of the mold is easily affected during the process of removing the lower pad, which affects the uniformity of the product after molding; 2. This pressing method makes the density of the upper and lower parts of the abrasive block higher than that of the middle part, especially Under the condition of large pressing thickness, the difference in structure density is large, resulting in different consumption speeds of abrasive blocks during use, which affects the performance and processing quality of products; 3. Manually put the molded material into the mold cavity, It is easy to cause uneven distribution of molding materials. This phenomenon is more obvious when pressing thicker abrasive blocks, and the formability of abrasive blocks is poor.

Images