Powder metallurgy brake pad friction block sintering tool

The utility model provides a powder metallurgy brake pad friction block sintering tool. The powder metallurgy brake pad friction block sintering tool comprises the following steps that a sintering piece and a pressurization type bell jar furnace used for being matched with the sintering piece are provided; the friction block is placed in the sintered part; a heat source is supplied into the sintered part through a heat supply pipe, cooling is conducted after sintering forming, a finished product is taken out, and the sintered friction block is obtained; the sintered part comprises an upper die plate internally provided with a second heating cavity and a lower die plate internally provided with a third heating cavity. By arranging the sintering piece capable of integrally forming the friction block, a product is uniform in shape and stable in assembly size after being sintered, secondary machining is not needed, the production efficiency is improved, and the stability of the product quality is ensured. Accordi