Screwdriver capable of wirelessly transmitting torque value
A wireless transmission and screwdriver technology, applied in the field of medical devices, can solve problems such as maintenance or inspection, damage, loosening, etc., and achieve the effect of convenient, stable and safe operation, convenient maintenance and disassembly, and complete and compact structure.
Inactive Publication Date: 2013-04-03
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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- Application Information
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Problems solved by technology
Too small screw-in torque will loosen with the passage of time and repeated movement of the installation position, resulting in the risk of maintenance or inspection; and too large screw-in torque will affect the local stress distribution of the installation position, making the installation site suddenly Very easy to break under external force conditions, resulting in unpredictable damage
Method used
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Embodiment Construction
[0025] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0026] see figure 1 As shown, in this embodiment, the wirelessly transmitted torque value screwdriver includes a screwdriver body with a screwdriver bit 1 and a handle 4, and the screwdriver bit 1 and handle 4 are customized according to actual size requirements. A torque sensor 3 for collecting torque data of the fastening instrument is built in the junction of the bit 1 and the handle 4 of the screwdriver. The torque sensor 3 adopts the CYT-301 type produced by Beijing Tianyu Hengchuang Co., Ltd., the working power supply is +12VDC, the detection torque range is -2~2Nm, the output frequency signal is 5K~15KHz, and the amplitude is 0~12V.
[0027] The screwdriver for wirelessly transmitting torque value of the present invention is composed of three major parts: the mechanical structure part with the torque sensor 3 as the core, the circuit structure part with th...
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The invention relates to a screwdriver capable of wirelessly transmitting a torque value. A torque sensor for acquiring torque data from fastening instruments is arranged on a combined part of a tool bit and a handle of the screwdriver; the torque sensor transmits a signal to a signal processing circuit; the signal processing circuit is integrated with a power supply unit, a direct-current to direct-current (DCDC) conversion unit, a first central processing unit (CPU) for performing scale conversion, control display and transmission on a frequency signal received from the torque sensor, a Bluetooth wireless transmission module for receiving and transmitting a torque signal, and a digital tube for displaying the torque signal; a Bluetooth wireless receiving module wirelessly communicating with the screwdriver is arranged on a personal computer (PC) outside a screwdriver body and used for wirelessly transmitting and receiving the torque signal which is detected by the torque sensor and transmitted between modules; and on the basis of the torque signal data, a working state of the torque screwdriver can be automatically recorded in real time on the PC.
Description
technical field [0001] The invention relates to a medical device, in particular to a screwdriver for wirelessly transmitting torque values. Background technique [0002] In the ever-changing field of manufacturing technology, screws are already one of the important ways of assembly and fixing, and the installation effect will affect the overall quality and life of the product. Too small screw-in torque will loosen with the passage of time and repeated movement of the installation position, resulting in the risk of maintenance or inspection; and too large screw-in torque will affect the local stress distribution of the installation position, making the installation site suddenly It is easily damaged under external force conditions, causing unpredictable damage. Contents of the invention [0003] The purpose of the present invention is to provide a screwdriver that can detect and display the torque value in real time when the screw is tightened, use Bluetooth wireless trans...
Claims
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IPC IPC(8): B25B15/02B25B23/14
Inventor 薛清华廖振华刘伟强
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN