How to use electric torque wrench

Shanghai Shiqian Industrial Co., Ltd. is a professional manufacturer and distributor of electric torque wrenches. This electric torque wrench of the company is a mechanized construction tool for assembling screw parts and bolts, and has an automatic torque control function. The following Xiaobian came to talk about the use of electric torque wrench.

operating

Turn on and off the power supply as follows. Insert the three-pole grounding power plug connected to the host and the three-pole grounded power plug connected to the power supply into the corresponding socket on the controller. Then insert the three-pole grounded power plug on the other end of the power cord. Apply power outlets and check that the green and yellow bi-color wires in the power cord should be reliably grounded. After completing the work, you should unplug the power cord from the external power outlet before you can remove the connection plugs between the host and the controller.

The constant torque steps are as follows:

a. Install the appropriate sleeve and reaction force bracket. Install the counter arm at a suitable angle and fit the appropriate sleeve into the square head of the spindle. During installation, the power supply can be turned on first, the host can be started to rotate, and the å­‘L on the square head can be aligned with the hole on the reaction arm and then loaded into the sleeve. At the same time, insert the pin from the reaction arm hole and fix it with a rubber ring to prevent the sleeve from falling off the square head of the spindle.

b. Adjust the direction of rotation, predetermined torque. Turn the forward and reverse switches to the forward position, and the controller's “control selection” knob is turned to 4 torque. Place and adjust to the position of the predetermined moment. Put the sleeve on the hexagonal side of the threaded coupling to start working.

c. Tighten the threaded coupling. After the main engine is started, the reaction arm is brought into close proximity to the adjacent fixed structure (the structure may be assembled bolts or other solid structure), and then the bolt is tightened until the tightening torque reaches the predetermined torque. , electric wrench automatic shutdown, bolt fastening.

During the tightening of the bolts, the power supply must not be switched off abruptly, otherwise it will cause an error in the torque.

d. Exit the electric wrench. After the electric wrench is stopped, the electric wrench is slightly reversed by the elastic force of the reaction arm, and the reaction arm is released from the structure immediately close to it, that is, the electric wrench can be easily removed, and the next bolt is tightened. Solid operation.

Removing the bolts is the same as tightening the bolts. During operation, the forward and reverse switches are set to the reverse position, but the electric wrench is not controlled by the controller. The bolts can be shut down after the bolts are loosened and removed.

Torque selection and adjustment are as follows

a. The choice of torque. The predetermined value of the torque is arbitrarily selected by the torque-adjusting knob within the specified torque adjustable range.

b. Adjustment of torque. The torque adjustment knobs are “torque select” and “torque trimmer.” The “torque selector” is a coarse adjustment knob and there are 10 gears in the PIBD-150 electric torque wrench controller, which can be adjusted step by step, and “torque trimming” is Adjust the torque between the two gears of the coarse adjustment knob steplessly.Before tightening the bolt, preliminarily predetermine the torque value and try to tighten the bolt.After the electric wrench is automatically shut down, measure the bolt with a force wrench or other force measuring instrument and device. The tightening torque value can be adjusted if it does not meet the requirements.The torque selection 'and' torque adjustment' knob until the required torque value, then batch bolt tightening operation.

Set the rotation angle as follows

a. Start the host. After the start, the reaction arm is placed close to the fixed structure that is fixed.

b. Place the controller. The control selector knob is turned to the "corner" position and the "angle selection" is dialed to the desired angle value.

c. Start the main unit and begin tightening the bolts. When the automatic stop, bolts have been tightened to the required angle. However, during operation, care should be taken that the maximum torque required for the selected corner is not greater than the maximum torque.

Fixed torque plus fixed corner operation steps are as follows

Turn the Control Select knob to . "Torque at a corner" position, at the same time in the "torque select" and. Angle selection. According to the above method to adjust to the required torque and the angle value required to reach this value, and then start the host that can tighten the screw. After the value is reached, the instrument automatically enters the corner control and automatically shuts down when the desired corner value is reached.

An electric torque wrench is a power tool with a controller. Attention should be paid during use.

a. Before tightening the bolts, check the main unit and the controller for faults. First, check whether the motor's operation and switching are normal. Then, check whether the controller has malfunctioned. According to the above method of use, check the angle of no-load, load inspection torque. And run for a few minutes without load, everything is normal before you can work.

b. The torque control value marked on the controller is not the actual torque value, but the corresponding number of cells. For example, the number of cells corresponds to 800 N·m, and the number of cells corresponds to 1 500 N·m. However, it should be corrected when used. The method is to select the appropriate number of points, start the host tighten the bolts, after the automatic shutdown, use the force wrench or spring scale or hanging weight to determine the actual torque value of the grid.

c. The ambient air temperature used by the controller is a t0 ~ 40 °C, it is not suitable to use the high or low temperature.

d. When the power supply voltage exceeds ±10% of the rated value, pressure regulating measures should be adopted to ensure the torque accuracy and prevent the motor from overheating and burn out.

e. When changing the spindle rotation direction, wait until the spindle stops and then change the forward and reverse rotation switches.

f. The electric torque wrench has no control when the bolt is removed. Therefore, it is necessary to prevent the overload resistance of the main engine by preventing the maximum torque value of the bolt.

g. Avoid working on rainy days to prevent rain from entering the interior of the electric wrench and causing accidents.

Xiaobian's explanation is here, if you need to buy electric torque wrench friends welcome to inquire!

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