Control method for sawing angle steel through profile steel saw machine
A control method and technology of sawing machines, which are applied in the direction of metal sawing equipment, sawing machine accessories, manufacturing tools, etc., can solve the problems of prolonged sawing time of sawing machines, large initial resistance, and the inability of saw blades to cut into angle steel, etc., to achieve The effect of increasing the processing speed
Active Publication Date: 2019-10-11
MAANSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0003] However, if this type of hacksaw machine adopts the sawing method of sawing profiled steel to cut angle steel, the starting point of the saw blade for sawing angle steel falls on the front of the leg of the angle steel, and the initial resistance of the saw blade cutting into the angle steel is large. The saw blade is not allowed to cut into the angle steel. In this way, not only the sawing time of the saw machine will be prolonged, but also the section of the angle steel after sawing will have sawing burrs that exceed the standard. figure 2 As shown, it can be seen that the sawing method used by the steel saw machine cannot meet the sawing requirements of the angle steel.
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Embodiment 1
[0025] see Figure 4-8 , a hacksaw machine angle steel sawing control method, including the following control methods:
[0026] NSW is a "digital conversion switch" function block, when I='1', Y=X2, when I='0', Y=X1; NCM is a "value comparison" function block, when X1>X2, QU is '1', when X1=X2, QE is '1', when X1<X2, QL is '1'; LVM2 is the function block of "value out-of-tolerance detection", in the case of HY=0, when X When ≥M+L, QU is '1', when M-L<X<M+L, QM is '1', when X≤M-L, QL is '1'; RSR is "reset terminal R Priority RS flip-flop" function block, when S is '1', R is '0', Q is '1', QN is '0', when S is '1', R is '1', Q is '0', QN is '1', when S is '0', R is '0', Q and QN remain the same, when S is '0', R is '1', Q is '0' 'QN is '1'; MFP is a "fixed-width pulse generator" function block. When the input terminal I changes from '0' to '1', the Q terminal will output a positive pulse with a time length of T, and at During the period when the Q terminal outputs positive p...
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The invention discloses a control method for sewing angle steel through a profile steel saw machine. The method involves following function modules of, for controlling the machine to operate, a sawingmachine rocker arm manual translation control unit, a sawing machine rocker arm manual lifting control unit, a sawing machine rocker arm vertical sawing speed selection unit, a saw machine rocker armhorizontal sawing position setting unit, a sawing machine automatic interruption and returning to waiting position operation control unit and a sawing machine automatic sawing control unit. In orderto prevent a saw blade from impacting the angle steel at the high speed, when the saw blade falls to the position 50 mm away from the angle steel under the manual or automatic condition, the descending speed of a rocker arm is required to be rapidly switched to a set sawing speed, a plurality of control modes are set, so that H-shaped steel and the angle steel are effectively sawn, and the machining speed is increased.
Description
technical field [0001] The invention relates to a control method of a hacksaw machine, in particular to a control method for sawing angle steel of a hacksaw machine. Background technique [0002] The saw machine is mainly composed of the saw machine rocker arm hydraulic (translation) feed mechanism (referred to as the saw machine rocker arm feed mechanism), the saw machine rocker arm hydraulic lifting mechanism (referred to as the saw machine rocker arm lift mechanism), the main drive motor, and the main drive deceleration mechanism. It is composed of machine thin oil lubrication system, and its mechanical structure diagram is as follows figure 1 As shown, the rocker arm lifting mechanism of the saw machine is mainly composed of the rocker arm body, the rocker arm lifting swing bracket, the rocker arm lifting swing hydraulic cylinder installed at one end of the rocker arm, and the main drive reducer and saw blade installed at the other end of the rocker arm. composition. W...
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IPC IPC(8): B23D59/00
CPCB23D59/001
Inventor 叶光平朱旭光尹正华张利明徐璐李健菲程良武
Owner MAANSHAN IRON & STEEL CO LTD