Internal high-pressure forming machine
An internal high pressure forming, hydraulic cylinder technology, applied in the field of hydraulic presses, can solve the problems of energy waste, large mold opening force, insufficient mold clamping force, etc.
Inactive Publication Date: 2011-04-27
吉林省元隆达工装设备有限公司
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Problems solved by technology
[0003] The internal high pressure forming machine needs to apply high-strength pressure to the mold during the working process, that is, the mold clamping force. The original equipment cannot supply the pressure required by the mold completely, that is, the mold clamping force is not enough
The original solution is to increase the pressure of the hydraulic cylinder. This method can solve the disadvantage of insufficient clamping force, but it will also lead to excessive mold opening force, and the mold can be opened without excessive force
Therefore, excessive mold opening force will lead to unnecessary waste of energy
Method used
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Embodiment Construction
[0014] The invention provides an internal high-pressure forming machine to increase the clamping force of the mold without increasing the mold opening force.
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0016] see figure 1 , figure 1 It is the front view of the internal high pressure forming machine provided by the embodiment of the present invention.
[0017] Wherein, 1 is a lower seat, 2 is a mobile workbench, 3 is a column, 4 is a slide block, 5 is a plunger cylinder, 6 is a piston cylinder, and 7...
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The invention discloses an internal high-pressure forming machine. The internal high-pressure forming machine comprises an upper seat, a slide block and a hydraulic cylinder, wherein the hydraulic cylinder is arranged on the upper seat; an extension bar of the hydraulic cylinder is connected with the slide block; and the hydraulic cylinder at least comprises a piston cylinder and a plunger cylinder. In the internal high-pressure forming machine provided by the embodiment of the invention, the hydraulic cylinder at least comprises a piston cylinder and a plunger cylinder through design, so at least one piston cylinder and one plunger cylinder provide mold clamping force during mold clamping; because the extension bar of the plunger cylinder can only extend out through hydraulic pressure in a single direction, the plunger cylinder does not provide mold opening force but only the piston cylinder provides the mold opening force during mold opening; therefore, the mold opening force is not superposed.
Description
technical field [0001] The invention relates to the technical field of hydraulic presses, in particular to an internal high pressure forming machine with reasonable pressure. Background technique [0002] In the fields of automobile, aviation and aerospace manufacturing, in order to reduce the production cost of hollow structural parts, save materials, reduce weight and improve the quality of parts, internal high pressure hydraulic forming technology has been widely used. Especially in the production of automobiles, such as sub-frames of cars, crossbeams of instrument panels, etc., are gradually replacing the original traditional processing methods with internal high-pressure hydraulic forming methods. The basic process of this technology is: first put the tube blank in the mold cavity, then close the mold, seal the two ends of the tube blank, and fill the tube blank with liquid. The punch pushes the material inward at the same time, so that under the combined action of int...
Claims
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IPC IPC(8): B21D26/02
Inventor 王中王继国王金成
Owner 吉林省元隆达工装设备有限公司