High-speed precise numerical control press mechanism with driving and driven combination drive
A precise numerical control, active and passive technology, applied in the field of mechanical pressure processing, can solve the problems of high requirements on crankshaft mechanical properties, complex processing technology, and many crankshaft stress points, reducing stress points, reducing processing difficulties, and reducing Effect of heat source
Active Publication Date: 2015-05-20
NANJING UNIV OF SCI & TECH
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Problems solved by technology
The disadvantage of this structure is: the crankshaft directly drives the main slider and the auxiliary slider through the connecting rod and the auxiliary connecting rod respectively. It is complex, and the processing technology is also very complicated; the rotary pair at the crankshaft that drives the main slider and the auxiliary slider on the crankshaft rotates all round, and becomes the main heat source under high-speed operation, and the heat generation is relatively large; the main slider The loads such as the inertial force, stamping force, and driving force of the auxiliary slider are all borne by the crankshaft. The crankshaft has many and complicated stress points, and the requirements for the mechanical characteristics of the crankshaft are very high.
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[0016] Such as figure 1 (a) is a schematic diagram of the structure of the high-speed precision CNC punching machine driven by the active and passive composite drive of the present invention. A high-speed precision CNC punching machine driven by active and passive composite drives, including a crankshaft 1, a main slider 3, a first auxiliary slider 71, a second auxiliary slider 72, a first connecting rod 21, a second connecting rod 22, and an eccentric mass block 8 , the third connecting rod 41, the first lever 51, the fourth connecting rod 61, the fifth connecting rod 42, the second lever 52, the sixth connecting rod 62; Since the fuselage can rotate, the eccentric mass 8 is fixedly installed on the crankshaft 1 in a direction of 180 degrees relative to the crank throw, and the main slider 3 is vertically arranged on the fuselage and directly below the crankshaft 1; the first connecting rod 21 and the second One end of two connecting rods 22 is respectively connected with tw...
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The invention provides a high-speed precise numerical control press mechanism with driving and driven combination drive. A crankshaft is simple in design structure and easy to process, force bearing points are few, heating sources are reduced, and the running speed of the high-speed precise numerical control press mechanism is improved. The mechanism comprises the crankshaft, a main sliding block and two auxiliary sliding blocks, wherein the crankshaft is connected with the main sliding block through a connecting rod; two groups of lever motions are separately arranged to connect the auxiliary sliding blocks with the main sliding block; the auxiliary sliding blocks are not directly connected with the crankshaft.
Description
technical field [0001] The invention belongs to the field of mechanical pressure processing, and in particular relates to a high-speed precision numerical control punch mechanism. Background technique [0002] Stamping process is a processing technology that applies external force to plates, strips, etc., and then uses auxiliary technology to cause plastic deformation or separation, so as to obtain the shape and size of the parts that meet the technical requirements. Compared with other processes, the stamping process has the advantages of low cost, convenient operation, good quality, high precision and high efficiency. As a high-efficiency, high-precision and highly automated stamping processing equipment, the high-speed punching machine has a punching speed of hundreds or even thousands of times per minute, so its production efficiency is dozens or even hundreds of times higher than that of ordinary punching machines. [0003] At present, most of the principle structures ...
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IPC IPC(8): B30B1/06
Inventor 彭斌彬周宇封金徽盛成吴静
Owner NANJING UNIV OF SCI & TECH