Tool clamp and machining equipment for silicon carbide DPF

Abstract

The invention discloses a silicon carbide DPF tool clamp and machining equipment, and belongs to the field of machined part clamping devices or positioning devices. In the tool clamp, a mold frame is provided with a plurality of material containing holes, a material containing groove is formed between the mold frame and a supporting seat, and a locking device and a floatable supporting block are arranged in the material containing groove. During use, a plurality of silicon carbide DPF blanks are placed in the material placing holes and are fixed by the locking devices, so that the plurality of silicon carbide DPF blanks can be conveniently and subsequently processed at the same time, and the production efficiency is improved. The mold frame and the supporting base can well protect the outer side wall of the silicon carbide DPF blank, adhesive tape does not need to be attached to the outer side wall, and the blank can be prevented from deforming, the outer side wall is prevented from being polluted by hole blocking slurry, and the skin is prevented from being damaged during adhesive tearing. And the supporting block capable of floating enables the device to be suitable for silicon carbide DPF blanks with different lengths. Besides, a material containing groove is formed in the extending position of each material containing hole through the partition plate assembly, each silicon carbide DPF blank can be better and independently limited and protected, and the deformation problem of the silicon carbide DPF blanks in the extrusion and drying process is solved.

Description

technical field [0001] The invention belongs to the field of workpiece clamping devices or positioning devices, and in particular relates to a tooling fixture and processing equipment for a silicon carbide DPF. Background technique [0002] At present, the production of silicon carbide DPF (full name Diesel Particulate Filter, diesel particulate filter) first uses a single strip-shaped silicon carbide honeycomb ceramic blank, first loads its two ends and the outer wall with tape, and then tapes the end face. , mud plugging, mud curing, etc., and then tear off the tape. This production method has the following problems: (1) Processing one silicon carbide DPF billet at a time has low production efficiency, such as mass production, which requires a lot of manpower and management costs. (2) The tape should not only stick to the end face tightly to prevent the mud from entering the next-door hole during extrusion, but also protect the outer wall of the silicon carbide honeycomb ...

AI Technical Summary

Problems solved by technology

This production method has the following problems: (1) Processing one silicon carbide DPF billet at a time, the production efficiency is low, such as mass production, it needs to invest a lot of manpower and management costs

(2) The tape should not only stick to the end face tightly to prevent the mud from entering the next-door hole during extrusion, but also protect the outer wall of the silicon carbide honeycomb ceramic from being polluted by the mud used for plugging the hole when the mud is squeezed. , the requirements for adhesive tape are high, the operation is difficult, and the product quality is easily affected due to insufficient adhesive tape

(3) In addition, when the mud material enters the channel when the hole is blocked, the water is absorbed by the hole wall, causing the strength of the silicon carbide DPF billet close to the end face to decrease. Therefore, when the tape is torn off, the skin of the fragile outer wall is glued away by the tape and broken. , resulting in product damage, the current rate of such damage exceeds 30%, affecting production efficiency

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