Clamping rotating mechanism

Abstract

The invention discloses a clamping rotating mechanism. The clamping rotating mechanism comprises a support, a base and an up-down drive structure. The support is provided with a motor and a speed reducer. The speed reducer and a ball spline shaft are connected through a coupler, and the ball spline shaft is fixed to the base through a first bearing block. A rotation column and a ball spline shaftnut are fixedly combined into a whole. The whole formed through combination of the rotation column and the ball spline shaft nut is arranged on the up-down drive structure composed of an air cylinder.The characteristic that the ball spline shaft nut can move up and down along the ball spline shaft and can also rotate together with a ball spline to transmit torque is sufficiently utilized, so thatthe whole mechanism is compact and simple, workpieces can be sufficiently exposed in the machining area, no other structures stopping the machining area exist, and application and popularization arefacilitated.

Description

technical field [0001] The invention relates to the technical field of clamps, in particular to a clamping and rotating mechanism, which is suitable for products or clamps that need to be clamped by pressing down, and equipment that needs to be rotated after clamping. Background technique [0002] Certain equipment action requirements are as follows: 1) The fixture is pressed; 2) The fixture can be rotated after being pressed. In order to realize this function, a cylinder is generally used to generate a downward clamping force, and a motor drives the rotation. There are two arrangements for the mechanism: 1) The motor is installed on the cylinder, and the clamping and connecting to the motor are carried out simultaneously during the pressing down process; 2) The cylinder and the clamp share the installation base, and the motor drives the entire base to rotate. [0003] Both of the above structures have some disadvantages: [0004] The first structure: 1) It is necessary to...

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Problems solved by technology

[0004] The first structure: 1) It is necessary to use a large-bore cylinder to provide clamping force and overcome the gravity of the motor-driven rotating mechanism. The ability of the cylinder is mainly used to overcome gravity; 2) Clamping and connecting the rotating mechanism are carried out at the same time. If the flexible connection mechanism is not designed, it will impact the rotating mechanism and increase the complexity of the equipment; 3) In order to ensure that it can be pressed down vertically, an additional guiding mechanism is required, resulting in a complex and bloated structure

[0005] The second structure: 1) The cylinder and the fixture are installed on the same base, and there will be more parts and components arranged on the entire base, which looks messy; 2) If the pressing accuracy is high, a guide mechanism needs to be arranged on the base , which increases the complexity; 3) The entire base plus the frame connected to the rotating mechanism makes the entire mechanism larger; 4) Due to the obstruction of the cylinder and the outer frame, the fixture cannot be fully exposed, and the need to expose the entire fixture can not satisfy

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