Feed pressure dynamic detection mechanism
A technology of dynamic detection and feed pressure, applied in the direction of non-electric welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of low positioning accuracy and repeat positioning accuracy, and achieve the effects of sensitive response, high measurement accuracy and small wear
Inactive Publication Date: 2016-01-27
WEIHAI LIANQIAO PRECISION MACHINERY
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Problems solved by technology
At the same time, there is a big disadvantage of hydraulic transmission, that is, the positioning accuracy and repeat positioning accuracy of the feed mechanism are low
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[0013] The present invention will be further described below in conjunction with the accompanying drawings.
[0014] As shown in the figure: a feed pressure dynamic detection mechanism, including a fixed connection plate 1, a lifting slide 2, a motor base 3, a balance oil cylinder 12 (or air cylinder) for eliminating the influence of the gravity of the parts on pressure detection, and a screw drive Mechanism, pressure sensor 4, force value measuring instrument 5 and motor 6, it is characterized in that screw transmission mechanism, linear track, balance oil cylinder 12 (or cylinder) and a motor base 3 are arranged on the fixed connecting plate 1; Connect the drive motor 6; the upper end of the screw transmission mechanism is connected to the pressure sensor 4, and the middle nut 7 connects the lead screw 8 in the screw transmission mechanism with the lifting slide 2; the motor 6 and the screw transmission mechanism are connected through a coupling 9 The motor drives the lead s...
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The invention discloses a dynamic detection mechanism for a feed pressure. The dynamic detection mechanism is characterized in that a screw rod transmission mechanism, a linear rail, a balance oil cylinder and a motor seat are arranged on a fixed connection plate; a drive motor is connected to the motor seat; the upper end of the screw rod transmission mechanism is connected with a pressure sensor, and a middle nut is connected with a lifting slide plate; the motor is connected with the screw rod transmission mechanism by a shaft coupler; the motor is used for driving the screw rod transmission mechanism, and the lifting slide plate is connected with the fixed connection plate in the form of a linear guide rail, thus the lifting slide plate is capable of performing a lifting motion along a screw rod under the driving of the screw rod transmission mechanism; the balance oil cylinder is fixed on the connection plate, the piston rod of the balance oil cylinder is connected with the lifting slide plate, a pressure is transferred to the pressure sensor through the lifting slide plate and the screw rod transmission mechanism, and the pressure value is displayed on line. The dynamic detection mechanism has the advantages of being high in measurement accuracy, sensitive in response, and capable of realizing online real-time measurement; meanwhile, by virtue of servo compensation, the dynamic detection mechanism is capable of obtaining higher positioning accuracy and repeated positioning accuracy.
Description
technical field [0001] The invention relates to the technical field of friction stir welding feed, in particular to a feed pressure dynamic detection mechanism which can display and control the feed pressure online in real time during the welding process. Background technique [0002] Friction stir welding is a welding method newly invented by Welding Experience. During the welding process, the welding head needs to apply a large pressure (upsetting force) to the workpiece to be welded. Usually, two methods are used to apply pressure (upsetting force) . The first is realized by hydraulic cylinder drive, and the second is realized by displacement generated by lead screw transmission. The pressure detection of the first hydraulic cylinder driving mode is to calculate the pressure (upsetting force) by detecting the pressure of the oil cylinder (or air cylinder). Although the second screw drive has high positioning accuracy and repeat positioning accuracy, it can only detect T...
Claims
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IPC IPC(8): B23K20/26B23K20/12
CPCB23K20/123
Inventor 辛泽鞠荣文丛龙军
Owner WEIHAI LIANQIAO PRECISION MACHINERY