Screw rod transmission structure for improving transmission accuracy
A technology of transmission structure and transmission accuracy, which is applied in the direction of metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc., and can solve the problems of reduced measurement accuracy of measuring instruments, reduced linear motion accuracy of carriages, and reduced accuracy of workpieces processed by machine tools, etc. , to achieve the effect of improving linear motion accuracy, low cost, and improving motion accuracy
Active Publication Date: 2014-03-26
SHANGHAI ELECTRICGROUP CORP
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Problems solved by technology
The lead screw will inevitably produce deformation and geometric deviation during the manufacturing and installation process. When there is no flexible connection, this deformation and error will be directly transmitted to the carriage, resulting in the reduction of the linear motion accuracy of the carriage, resulting in the machining of the workpiece by the machine tool. Decreased accuracy, reduced measurement accuracy of the measuring instrument
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0033] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0034] Embodiments of the present invention will be specifically explained below in conjunction with the accompanying drawings.
[0035] Such as figure 1 and figure 2 The embodiment of the present invention shown in a screw drive structure to improve the transmission accuracy, including the co...
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The invention provides a screw rod transmission structure for improving transmission accuracy. The screw rod transmission structure comprises a screw rod, a screw rod nut, a driving support plate, a flexible connecting part and an air floatation support plate in a mutual connection mode. One end of the screw rod nut is fixedly connected with one end of the driving support plate, the other end of the driving support is fixedly connected with one end of the flexible connecting part, and the other end of the flexible connecting part is connected with one end of the air floatation support plate. An elastic flexible buffering unit is arranged on the flexible connecting part, and the driving support plate is connected with the air floatation support plate through the flexible buffering unit on the flexible connecting part. According to the technical scheme, the ball screw transmission structure with the inner support plate and the outer support plate is adopted, deformation and errors caused in the transmission process of the screw rod are eliminated through the flexible buffering unit of the flexible connecting part, force needed by motion is kept, and the accuracy of linear motion of the air floatation support plate is improved.
Description
technical field [0001] The invention belongs to the field of mechanical manufacturing, and relates to a transmission structure, in particular to a screw transmission structure for improving transmission precision. Background technique [0002] Screw drive has been widely used as a typical transmission part. The screw drive has the characteristics of increasing force and torque in forward transmission and reducing the influence of load on motor control. Ball screw drive is the most commonly used in precision and ultra-precision machine tools and measuring equipment. [0003] Ordinary ball screw transmission mechanism is composed of screw, screw nut, carriage, linear guide (air bearing guide) and screws and other accessories. The lead screw will inevitably produce deformation and geometric deviation during the manufacturing and installation process. When there is no flexible connection, this deformation and error will be directly transmitted to the carriage, resulting in the...
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IPC IPC(8): B23Q5/40
CPCB23Q5/34B23Q5/40B23Q11/00
Inventor 严隽藩谭福生杨家荣娄云鸽陈伟伟
Owner SHANGHAI ELECTRICGROUP CORP