Chain, chain transition chain plate and automatic chain transition chain plate integration punch forming technology

Abstract

The invention discloses an automatic chain transition chain plate integration punch forming technology and a chain and a chain transition chain plate manufactured by same. The automatic chain transition chain plate integration punch forming technology comprises automatically achieving positioning hole punching and trimming of a transition chain plate, trimming, primary bending, bending and finishing, pre-punching, fine punching, blanking and the like through a progressive die on a punching machine during an advancing process of a steel belt. According to the automatic chain transition chain plate integration punch forming technology, automatic machine operation replaces traditional manual operation, production efficiency of products is improved, the forming process is achieved through primary bending and bending and finishing, cracks caused at the bending positions can be reduced, and accordingly the smoothness of the transition chain plate is guaranteed; the hole size accuracy and shape accuracy and the hoe diameter euphotic belt quality are guaranteed due to the pre-punching and the fine punching; machining is performed based on the same positioning reference, the product size accuracy and the product identity are guaranteed, the product quality is improved, and the unaccepted product rate is reduced.

Description

technical field [0001] The invention relates to a chain, a transition chain plate of the chain and an integrated automatic stamping forming process of the transition chain plate of the chain. The transition chain plate of the chain is suitable for being a transition chain plate of a standard short-pitch precision roller chain. Background technique [0002] Transition chain (such as figure 1 and Figure 4 ) is an important part of the precision roller chain with an odd number of links, such as Figure 1-4 As shown, the outer contour of the transition chain plate is composed of arcs and straight lines. There are two holes on the plate, one large and one small. The small hole of the transition chain plate is "D" shape, and the small hole is matched with the transition pin. An important structural feature of the transition chain plate is that the middle part of the connection direction of the hole center is bent, so that the two ends of the chain plate are on different planes,...

AI Technical Summary

Problems solved by technology

[0005] 2) Annealing consumes a lot of electricity, the processing cycle is long, and the surface of parts is easy to oxidize and decarburize;

[0006] 3) The bending process is mostly manual feeding and unloading, which has low efficiency and poor operation safety;

[0007] 4) In addition, due to inaccurate positioning during bending, the bending size will be inaccurate and waste products will easily be produced;

[0008] 5) Some products will cause the punched holes to deform when they are bent. In order to ensure the size of the holes, the hole repairing process must be added;

[0009] 6) The entire processing process has many procedures, occupies a lot of equipment, requires a lot of labor, consumes a lot of energy, and has low production efficiency

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