Stiffness enhancing device of parallel drilling machine and its control method
A technology of strengthening device and parallel connection, which is applied to the components of boring machine/drilling machine, feeding device, automatic control device, etc., can solve the problems of reducing the response speed and increasing the inertia of the system, and achieve the effect of improving the torsional rigidity and system rigidity.
Inactive Publication Date: 2020-05-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0029] Such as image 3 with Figure 4 As shown, a rigidity enhancing device for a parallel drilling machine adds a 6TPS parallel mechanism to the original parallel drilling machine of the 1PT+3TPS parallel mechanism. The parallel mechanism consists of a first fixed platform 2 and six first peripheral legs 3 , each first peripheral leg 3 includes a Hooke hinge, a moving pair and a spherical joint, the first fixed platform 2 is rigidly connected to the frame 1 of the parallel drilling machine, and the tops of the six first peripheral legs 3 pass through the Hooke The hinge is connected to the first fixed platform 2, and the bottom ends of the six first peripheral legs 3 are connected to the moving platform 4 of the parallel drilling machine through spherical joints. The peripheral legs 3 are all driven legs, which will not interfere with the posture adjustment movement of the drill bit 5. When the posture of the drill bit 5 is adjusted in place and ready to make holes, the len...
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The invention discloses a rigidity enhancing device for a parallel drilling machine, which includes a parallel drilling machine of a 1PT+3TPS parallel mechanism, and a 6TPS parallel mechanism, which includes a first fixed platform and six first peripheral legs whose length can be stretched. , the first fixed platform is rigidly connected to the frame of the parallel drilling machine, the six first peripheral legs are connected to the first fixed platform through Hooke hinges, and the six first peripheral legs are connected to the moving platform through spherical hinges; when the 1PT+3TPS parallel mechanism During the attitude adjustment process of the drill bit of the parallel drilling machine, the six first peripheral legs are driven legs, which will not interfere with the attitude adjustment movement of the drill bit. Die, switch to fixed-length legs, so that the rigidity of the parallel drilling machine of the entire 1PT+3TPS parallel mechanism is enhanced. The invention also discloses a control method of the rigidity enhancing device of the parallel drilling machine. The invention greatly increases the torsional rigidity of the drilling system and can effectively guarantee the machining accuracy of the machine tool.
Description
technical field [0001] The invention relates to the technical field of mechanical processing machine tools, in particular to a stiffness enhancing device of a parallel drilling machine and a control method thereof. Background technique [0002] In the patent document with application number 201610885614.1, it is proposed that figure 1 with figure 2 A parallel drilling machine based on 1PT+3TPS parallel mechanism is shown, figure 1 It is a schematic diagram of 1PT+3TPS parallel mechanism, figure 2 It is the axonometric drawing of the parallel drilling machine of the 1PT+3TPS parallel mechanism, which includes the second fixed platform, the moving platform on which the drill bit is installed, and the three degrees of freedom formed by the middle leg and three second peripheral legs between the fixed platform and the moving platform 1PT+3TPS type space parallel mechanism. [0003] The second fixed platform of the mechanism is fixedly connected on the frame to ensure the s...
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IPC IPC(8): B23B47/00B23Q1/70B23Q5/22B23Q15/22
CPCB23B47/00B23Q1/70B23Q5/22B23Q15/22
Inventor 范守文潘钰范帅林浩然邹云夫蓝维彬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA