Introduction to the mechanical structure of the band sawing machine
The main components of the band saw include:
Bottom seat; bed, column; saw beam and transmission mechanism; guide device; work piece clamping; tensioning device; feeding frame; hydraulic transmission system; electrical control system; lubrication and cooling system
Band sawing machine base: The band sawing machine base is a box-shaped structure made of welded steel plates, on which the bed and uprights are fixed. There is a large space in the inner cavity of the circular sawing machine base. The front left side is the electrical button control box, and the right side is the electrical power distribution. Plate box, hydraulic oil tank welded by steel plate in the middle, hydraulic pump station and hydraulic pipeline are installed in the cavity, cooling cutting fluid tank and water pump on the right side, and anchor bolt holes at the bottom four corners.
The composition of the band sawing machine bed:
The bed of the band sawing machine is made of cast iron and fixed on the base. The column is composed of a large and small column. The large column is used as a guide for the saw frame to move up and down. It is used to support the up and down movement of the saw beam and ensure accurate guidance. The small column plays an auxiliary role , so as to ensure the normal cutting of the saw blade. The middle is a clamping vise and a manual feeding mechanism. The front of the vise is connected to a worktable that accepts finished parts. The clamping device on the left is a clamping screw that passes through the inner hole of the hydraulic clamping cylinder rod. Turn the hand wheel or press button to move the left jaw side to side.
Band saw beam and transmission mechanism:
It is made of thick steel plate by cutting, forming and welding, and has strong rigidity. The worm gear box is fixed on the right rear side. The worm gear in the box is fixed with the driving wheel on the saw beam, and the two rotate synchronously. The left side is the driven wheel and the saw blade tension position. The rotary motion of the saw blade is driven by the main motor, pulley and worm gear through a two-stage speed change to transmit it to the driving wheel, and then the driving wheel and the saw blade drive the driven wheel to realize the operation speed of the saw blade in three gears.
Band saw blade guide:
The guide device is installed on the support plate of the saw beam and consists of left and right guide arms and guide heads. Both the left and right guide arms can move along the dovetail tenon (or the right guide arm is fixed on the column sleeve) to adjust the distance between the two guide arms. About 40mm wider than the work piece size. The guide device is used to change the installation angle of the saw blade so that the saw blade is perpendicular to the worktable. In order to ensure the cutting accuracy of the saw blade and reduce vibration, a set of guide wheels (rolling bearings) and wear-resistant guide blocks are installed on the left and right guide arms. Wear-resistant alloy guide blocks.
Clamping mechanism:
The right vise is fixed on the bed, the clamping screw rod passes through the inner hole of the hydraulic clamping cylinder, the hydraulic band saw is connected by the screw rod and the left vise moves left and right along the guide rail. Clamping or loosening of the control panel Press the clamp to clamp or loosen the work piece.
Tensioner:
It is composed of a skateboard seat, a skateboard, a screw rod, etc. When the saw blade is to be tensioned, the saw blade can be tensioned by rotating it clockwise with a torque wrench, and it is in working state. If the sawing machine has been stopped for a long time, turn the torque wrench counterclockwise to loosen the saw blade. After loosening the saw blade, you can replace the saw blade with a new one.
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