Auxiliary supporting device for machine tool beam screw rod

Abstract

The invention discloses an auxiliary supporting device for a machine tool beam screw rod and relates to the technical field of machinery manufacturing. The auxiliary supporting device is installed between a machine tool transverse sliding plate and a beam. A fixing support is arranged on the machine tool beam. A movable bracket is connected on the fixing support in a pressing mode and provided with a supporting block which is used for supporting the screw rod. The fixing support is provided with a horizontal first through hole, wherein the first through hole is sequentially provided with a spring, a pin and a bearing. One end, close to the spring, of the first through hole is provided with a sealing plate. The movable bracket is provided with a second through hole. The bearing is arranged in the first through hole of the fixing support and the second through hole of the movable bracket. A lifting pin is arranged in the second through hole. One side of the second through hole is provided with a third through hole. The third through hole is provided with a shaft and a bearing, wherein the bearing abuts against a guiding plate which is provided with a guiding groove, and the bearing extends into the guiding groove of the guiding plate. The auxiliary supporting device for the machine tool beam screw rod can solve the problems that the supporting device for the heavy machine tool beam screw rod is complex in structure and high in production cost and can only support partial drooping screw rods.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment manufacturing, in particular to a device for auxiliary support of large-span heavy lead screws. Background technique [0002] In recent years, with the vigorous development of the domestic equipment manufacturing industry, the machine tool industry, which is the mother machine of equipment manufacturing, has vigorously developed a batch of high-precision heavy-duty machine tools in order to meet the needs of various enterprises. Especially for the Y-direction beam, the stroke has reached more than 5 meters, and the length of the lead screw is more than 7 meters. Since the lead screw is placed horizontally, its rigidity is low, and it is easy to sag due to factors such as gravity or temperature rise. The contact stress between the steel ball and the raceway increases, which will cause large plastic deformation on the contact surface of the ball, affect the running accuracy of the movin...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an auxiliary support device for the beam screw of a machine tool, which can solve the problem of the complex structure and high production cost of the support device for the beam screw of the heavy machine tool in the prior art, and can only solve the problem of the drooping amount of the local screw

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