an idle device
A technology of dry running and solenoid valve, which is applied in the field of detection, can solve the problems of defective occurrence rate, increased working hours, and inability to confirm whether it is a good product, so as to reduce the working hours of maintenance and reduce defective effects
Active Publication Date: 2019-07-26
津上精密机床(浙江)有限公司
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Problems solved by technology
[0002] The tailstock, brake device and other devices in the CNC machine tool need to be connected to the oil pipe to control the action through the hydraulic station. Before installation, it is impossible to confirm whether they are good products or whether they can operate normally. If they are not tested and directly installed on the CNC machine tool, it will lead to increase. The occurrence rate of adverse events increases the man-hours for later repairs, so a new solution needs to be proposed to solve this problem
Method used
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Embodiment Construction
[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] An idle running device, such as figure 1 As shown, the dry running device includes an oil pressure motor 4, which is connected with an oil pipe for supplying oil to the oil pressure motor 4, and is used to provide power for the operation of the device, and a pressure valve is installed on the oil pipe so that the oil pipe can be adjusted by adjusting the pressure valve. The oil pressure delivered to the hydraulic motor 4 reaches a predetermined value; the solenoid valve 5 is installed on the oil pipe, and the oil supply of the oil pipe is controlled by the opening and closing of the solenoid valve 5; the switch circuit 2 is used to control the opening and closing of the control circuit 1 Closed, output switch signal; control circuit 1, coupled to switch circuit 2 and solenoid valve 5, receives switch signal to control solenoid valve 5 to open a...
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The invention discloses a no-load running apparatus comprising a hydraulic motor, a solenoid valve, a switching circuit, a control circuit, a pressure relay, and a power supply unit. The hydraulic motor connected with an oil pipe for providing oil for the hydraulic motor is used for providing power. The solenoid valve arranged at the oil pipe is used for controlling on or off of the oil pipe. The switching circuit is used for controlling on or off of a control circuit and outputting a switching signal. The control circuit coupled to the switching circuit and the solenoid valve receives the switching signal to control the opening of the solenoid valve and the closing of the solenoid valve after delay of predetermined time. The pressure relay is arranged at the oil pipe in the rear of the solenoid valve; a normally closed contact switch is connected in series between the control circuit and the switching circuit to detect the oil pressure in the oil pipe; and a normally closed contact switch is turned off when the oil pressure in the oil pipe reaches a predetermined value. The power supply unit is used for providing an operating voltage for the o-load running apparatus. Therefore, the reject ratio after assembling of the apparatus is reduced.
Description
technical field [0001] The invention relates to the detection field, and more specifically, it relates to a dry running device. Background technique [0002] In the CNC machine tool, the tailstock, brake device and other devices that need to be connected to the oil pipe to control the action through the hydraulic station cannot confirm whether they are good products or whether they can operate normally before installation. If they are not tested and directly installed on the CNC machine tool, it will increase The occurrence rate of defects and the man-hours for later maintenance are increased, so a new solution needs to be proposed to solve this problem. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a dry running device to reduce the defect rate after the device is assembled. [0004] The above-mentioned technical purpose of the present invention is achieved through the following technic...
Claims
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IPC IPC(8): G05B19/4065
CPCG05B19/4065G05B2219/37616
Inventor 唐东雷
Owner 津上精密机床(浙江)有限公司