Temperature compensation mechanism of positioning device of bar shearing machine
A positioning device and temperature compensation technology, applied in shearing devices, accessories of shearing machines, metal processing equipment, etc., can solve the problems of bar length and dimension errors, errors, etc. The effect of easy quality control
Inactive Publication Date: 2012-05-16
张全武
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Problems solved by technology
Since metal materials generally have a certain expansion coefficient, the bar after heating and shearing will shrink to a certain extent when it is cooled to normal temperature, which causes the error in the length of the bar. In order to compensate for this error, the current The method is generally to increase the amount of shrinkage compensation appropriately according to experience during cutting, but due to the limitation of experience and human factors, sometimes there will be a large error
Method used
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[0008] The retaining device (8) is connected and fixed with the lead screw nut (4), and the lead screw nut (4) is connected with the lead screw (2) through thread fit, and the lead screw (2) is installed and fixed on the sliding bracket (5) Above, the fixed reducer (6) is installed on the sliding bracket (5), the output shaft of the reducer (6) is connected and fixed with one end of the lead screw (2), and the output shaft of the digital motor (7) is connected with the end of the reducer (6). The input shaft is connected and fixed, the sliding bracket (5) is connected with the transmission system (3), the action of the transmission system (3) is controlled by the primary control system (1), and a fixed temperature sensor is installed on the path passed by the bar (12) (10), the program controller (9) is respectively connected to the digital motor (7) and the temperature sensor (10) with a signal line.
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The invention discloses a temperature compensation mechanism of a positioning device of a bar shearing machine; a stopper device is fixedly connected a screw nut which is connected with a screw rod in a threaded matching manner; the screw rod is fixedly installed on a sliding bracket; the sliding bracket is provided with a speed reducer, of which the output shaft is fixedly connected with one end of the screw rod; the output shaft of a digital motor is fixedly connected with the input shaft of the speed reducer; the sliding bracket is connected with a transmission system; the actions of the transmission system are controlled by a primary control system; a temperature sensor is fixedly installed in a path taken by the bars; a signal wire for a program controller is respectively connected with the digital motor and the temperature sensor.
Description
technical field [0001] The invention relates to a positioning device of a bar shearing machine, in particular to a temperature compensation mechanism of the positioning device of a bar shearing machine, belonging to the technical field of bar shearing machines. Background technique [0002] At present, in the process of bar shearing, for the shearing of larger diameter bars, in order to reduce the shear force, it is sometimes necessary to heat and shear. For some bar blanks that require higher shear surface accuracy after shearing, Sometimes according to the requirements of the process, it is also necessary to heat first; then shear. Since metal materials generally have a certain expansion coefficient, the bar after heating and shearing will shrink to a certain extent when it is cooled to normal temperature, which causes the error in the length of the bar. In order to compensate for this error, the current Generally, the method is to appropriately increase the amount of shr...
Claims
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Inventor 张全武
Owner 张全武