A kind of lever type hydraulic clamping device
The utility model relates to clamping device technical field, particularly a kind of lever type hydraulic clamping device.
Clamping device be widely used in various plant equipment and various mechanical technologies in, the fixture for example using in mechanical processing process and the clamping mechanism in injection machine are all common clamping devices.The clamping force of clamping device generally derives from the fastening force of screw thread or the pressure of hydraulic means etc., because hydraulic clamp can automatically be controlled and is common in common mechanical equipment, clamping device generally has two clamping elements, one is place work piece on clamping element, and another clamping element is applicable to fastening.
Current hydraulic clamp adopts two hydraulic cylinder clamping work pieces, be only applicable to the processing of the workpiece of single-piece or small lot, this hydraulic clamp is not only difficult to the large batch of foundry goods tapered sleeve part of processing, and tool locating is complicated, the serious production efficiency that reduces, has caused the waste of manpower.There is complex structure, high in cost of production shortcoming in existing hydraulic clamp.Claw is unfixing, can slide, and so very easily occurs that clamp mechanism, because iron filings stop up stuck situation, greatly reduces production efficiency.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, and the lever type hydraulic that a kind of production efficiency is high, cost is low, simple in structure, production lot is large clamping device is provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of lever type hydraulic clamping device, it comprises support, cover plate, lower claw, hydraulic cylinder, lever, slide block, support bar and connecting rod, lower claw is arranged on the side of support, the vertical support of hydraulic cylinder bottom surface is arranged on support, cover plate is arranged on support top, support bar and lever are hinged and on the cover board fixing, the piston rod of hydraulic cylinder and one end of lever are hinged, the other end of lever and connecting rod head end are hinged, the end of connecting rod is connected with slide block, the side of support is provided with guide rail, slide block is placed in guide rail, slide block be positioned at lower claw directly over.
Described lower claw and slide block are arranged on the same side of support.
The utlity model has following advantage: (1) the utility model adopts hydraulic-driven to make slide block clamping work pieces, has the advantages such as simple in structure, cost is low, production lot is large.(2) power of exporting by lever transmission hydraulic cylinder, makes compact assembling structure, is convenient to narrow space and installs.(3) lower claw is fixed claw, does not slide, and is not prone to the clamp mechanism situation stuck because iron filings stop up, thereby has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is front view of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 2;
In figure, 1-support, 2-cover plate, 3-lower claw, 4-hydraulic cylinder, 5-lever, 6-slide block, 7-support bar, 8-connecting rod, 9-piston rod, 10-guide rail.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection domain of the present utility model is not limited to the following stated:
As depicted in figs. 1 and 2, a kind of lever type hydraulic clamping device, it comprises support 1, cover plate 2, lower claw 3, hydraulic cylinder 4, lever 5, slide block 6, support bar 7 and connecting rod 8, lower claw 3 is arranged on the side of support 1, hydraulic cylinder 4 vertical support 1 bottom surfaces are arranged on support 1, cover plate 2 is arranged on support 1 top, support bar 7 is hinged and be fixed on cover plate 2 with lever 5, the piston rod 9 of hydraulic cylinder 4 is hinged with one end of lever 5, the other end of lever 5 and connecting rod 8 head ends are hinged, the end of connecting rod 8 is connected with slide block 6, the side of support 1 is provided with guide rail 10, slide block 6 is placed in guide rail 10, slide block 6 be positioned at lower claw 3 directly over.Described lower claw 3 and slide block 6 are arranged on the same side of support 1, and lower claw 3 and slide block 6 are all positioned at the right side of support 1, and lower claw 3 is fixed on support 1, and lower claw is fixed claw, do not have to slide not to be prone to the clamp mechanism situation stuck because iron filings stop up.Hydraulic cylinder 4 protrudes upward, and power output is delivered on slide block 6 by lever 5, and slide block 6 moves down in track 10, thereby compress, is placed on the workpiece on lower claw 3, realizes the clamping of workpiece.
The course of work of the present utility model is as follows: workpiece is placed on lower claw 3, primer fluid cylinder pressure 4, the piston rod 9 of hydraulic cylinder 4 protrudes upward, power output is applied on the hinge that piston rod 8 is connected with lever 5, and due to lever principle, power output is delivered on connecting rod 8, connecting rod 8 is applied to power output on slide block 6, slide block 6 moves down under the effect of power in track 10, thereby compress, is placed on the workpiece on lower claw 3, realizes the clamping of workpiece.