Pressing tool for assembling truck body

Abstract

The invention discloses a pressing tool for assembling a truck body. The pressing tool comprises an upright device, a pressing hook, a jack device and a workpiece locating device, wherein the upright device comprises uprights and bases, which are positioned on the two sides; the top ends of the uprights are provided with anti-rebound devices; guide devices and lug seats are arranged on the inner sides of the uprights; cylinders are arranged on the outer sides of the uprights; connecting devices matched with the guide devices are arranged on the inner sides of the guide devices; upper ends of the connecting devices are hinged with pressing hooks; pin holes and pin shafts I are arranged on the lug seats; the pin holes are matched with the pin shafts I; force amplifying levers, which rotate relative to the pin shafts I, are arranged on the pin shafts I; upper long circular holes and lower long circular holes are respectively formed in two ends of the force amplifying levers, wherein the upper long circular holes are hinged with connecting holes at lower ends of the connecting devices by pin shafts II; the lower long circular holes are hinged with connecting holes on end part joints of cylinder piston rods by pin shafts III; jack devices and workpiece locating devices are arranged on the inner sides of lower ends of the uprights; and the bases of the uprights, bottom surfaces of the jack devices and bottom surfaces of the workpiece locating devices are respectively connected with foundation embedded plates.

Description

technical field [0001] The invention relates to the technical field of railway freight cars, in particular to a pressing tool for assembling a freight car body composed of an underframe, a side wall and an end wall such as an open car and a funnel car. Background technique [0002] The body of a truck is composed of an underframe, side walls, and end walls. When assembling the vehicle body, in order to make the side walls and the underframe fit closely and to ensure the correct size of the pair, a lot of pressure must be exerted on the lower end of the underframe and the upper end of the side wall. . For this reason, a jack device with a suitable lifting capacity is designed at the lower end of the chassis. When the jack pushes up the chassis, it is easy to tilt the car body. The corresponding pressure presses down against the side wall. The existing technology is: use cantilever support on the top of the side wall, hang a jack on the cantilever support, turn the cantileve...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the prior art that adopt cantilever support and manually adjust the jack to press down the side beam, which is inconvenient and unsafe to operate, and the oil pressure device is easy to cause oil leakage and fire, and the production cost is relatively low. The problem that the pneumatic device is high, but the motor of the electric pressing device is easily damaged; a pressing tool for truck body assembly is provided; it has the advantages of simple structure, convenient assembly, simple operation, high reliability and low production cost, and can be easily realized The pressing device for assembling workpieces of various specifications ensures that the side wall and the bottom frame are closely attached and the assembly position is accurate when the side wall and the bottom frame are assembled.

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