Hydraulic positioning clamping mechanism for shaft machining

Abstract

The invention discloses a hydraulic positioning clamping mechanism for shaft machining. The clamping mechanism comprises three clamping claws; an included angle of 120 degrees is formed between every two adjacent clamping claws; a joint shaft 6 is connected with a hydraulic piston rod 9 through a bolt; a dovetail groove structure which forms a 20-degree included angle with the horizontal axis is designed on the joint shaft 6; the joint shaft 6 is in match connection with a translation base 2; the hydraulic piston rod 9 drives the joint shaft 6 to move left and right through left and right moving; and meanwhile, an inclined angle is formed between the contact surface of the translation base 2 and the joint shaft 6 and the horizontal plane, so that the translation base 2 does centred motion or centrifugal motion along the longitudinal direction. A baffle plate 5 is connected with a cylindrical disc 1 through bolts, so that dust is prevented from falling into the joint shaft 6; and the hydraulic piston rod 9 is provided with a sealing ring 8, so that a liquid medium in a hydraulic cylinder is isolated. A clamping claw base 4 is connected with the translation base 2 through bolts 3, so that the clamping claw 4 moves along with the movement of the translation base 2; and connection threaded holes are formed in the clamping claw base 4, so that different clamping claws can be changed according to different workpieces.

Description

technical field [0001] The invention relates to the field of machining design and manufacture of mechanical shafts, in particular to a hydraulic positioning and clamping mechanism for machining shafts. Background technique [0002] Machine tool is a modern complex production tool, and it is one of the most important elements among the three elements of human production and development (people, tools, resources). People create tools, rationally use resources, and the quality of people and the level of technology are the basis for social development. and fundamental motivation. The "advanced nature" of the tools created by people determines the production efficiency and labor productivity in the production of various industries in industry and agriculture. For example: the United States currently has the highest personnel quality and technological level in the world, about half of which are college graduates, and it recruits elite talents from all over the world. The product...

AI Technical Summary

Problems solved by technology

[0007] 2. In terms of basic skills, the familiarity with the user's production needs and the understanding of the user's product processing technology are poor

Lack of in-depth research on the future development direction; many key technologies of machine tools such as machinery, electricity, hydraulics, gas, light, components, functional components, NC systems, hardware, software, etc. have not been grasped, and they are not technically qualified; The fundamental points of the development of machine tool technology, such as: technology, precision, efficiency, automation, intelligence, environmental protection, and networking, lack key points for in-depth grasp and comprehensive penetration

[0008] 3. The design, manufacture, use, and innovation capabilities of China's machine tool industry are at a low-to-medium level. Since China has learned from manufacturing manual ordinary machine tools, it has leapfrogged, imitated, and used NC machine tools from Europe, the United States, and Japan, and has not experienced efficient automated machine tools and automatic lines. The design, manufacture, use, test and use experience of mass production automation, lack of perceptual, rational understanding and profound basic knowledge of components, control systems and the quality, reliability, stability and durability of the entire machine tool

At present, the development of machine tool functional components in my country is weak, and the technology is uneven, which seriously restricts the improvement of machine tool performance. This is a fatal link.

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