Clamping method and special clamping device for movable workbench of hydraulic press
A technology of movable workbench and hydraulic press, which is applied in the direction of presses, manufacturing tools, etc., can solve the problems of high cost and trouble, and achieve the effect of cost saving
Inactive Publication Date: 2015-09-23
NANTONG GAOYE HEAVY IND CO LTD
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Problems solved by technology
[0003] At present, among the hydraulic presses used in the existing market, the clamping mechanism of the movable workbench adopts the following method: four sets of detection switches are installed in the fixed workbench, and each set of detection switches is controlled by two sets of upper limit detection and lower limit detection. It is composed of parts, so the cost required is relatively high, and when detecting whether the movable workbench is clamped, it is necessary to detect whether the movable workbench is clamped through simultaneous detection of four lower limit detection switches, which is more troublesome
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[0013] Such as figure 1 It can be seen from the schematic diagram shown that the clamping device of the movable workbench of the hydraulic press mainly includes the movable workbench 3 , the fixed workbench 2 , the detection switch, the clamping cylinder and the top plate 1 .
[0014] Roller 7 is installed on the bottom of movable workbench 3, and the middle position of the circumferential surface of roller 7 is provided with a circle of guide ribs to prevent roller 7 from wandering. shape.
[0015] A clamping cylinder is installed inside the fixed workbench 2. The clamping cylinder mainly includes a clamping cylinder body 8 and a piston rod 4. A rectangular protrusion 5 is arranged in the middle of the piston rod 4, and the rectangular protrusion 5 is located on the clamping cylinder. Between the body 8 and the fixed workbench 2, a top plate 3 is installed on the top of the piston rod 4 of the clamping cylinder. The middle part of the top plate 3 is provided with a cavity m...
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The invention relates to a movable workbench clamping method for a hydraulic press. The method comprises the steps as follows: a movable workbench is driven by a motor to move on a track, and a movable workbench in-position proximity switch is adopted to detect whether the movable workbench moves in position; and when the movable workbench moves in position, the movable workbench stops moving, a clamping cylinder drives a top plate to begin descending, meanwhile, a pressure detection switch starts to detect pressure at an oil inlet of the clamping cylinder, when the pressure increases gradually, the clamping cylinder stops driving, and the movable workbench is clamped at the moment. A clamping device for realizing the clamping method mainly comprises the movable workbench, a fixed workbench, the detection switch, the clamping cylinder and the top plate. The invention further relates to a special clamping device for realizing the clamping method. The movable workbench clamping method and the special clamping device thereof for the hydraulic press has the advantages that lower spacing is cancelled, the proximity switch arranged inside the fixed workbench is used for detection, and whether the movable workbench is clamped is determined by the pressure of the clamping cylinder.
Description
technical field [0001] The invention relates to a clamping method for a movable workbench of a hydraulic press, and also relates to a special clamping device for realizing the clamping method. Background technique [0002] A hydraulic press is a machine that uses liquid as a working medium to transfer energy to achieve various processes. In addition to being used for forging and forming, the hydraulic press can also be used for straightening, pressing, packing, briquetting and pressing. Hydraulic presses include hydraulic presses and hydraulic presses. The hydraulic press that uses water-based liquid as the working medium is called hydraulic press, and the one that uses oil as the working medium is called hydraulic press. The specifications of hydraulic presses are generally expressed by nominal working force (kN) or nominal tonnage (tons). Most hydraulic presses for forging are hydraulic presses with high tonnage. In order to reduce the size of the equipment, large-scal...
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IPC IPC(8): B30B15/00B30B15/16
Inventor 邵正国陆新建赵兴华邵志强
Owner NANTONG GAOYE HEAVY IND CO LTD