Molding method and molding apparatus
a molding apparatus and molding method technology, applied in the direction of metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of slow molding speed, and generation of limits, so as to reduce the diameter, prevent the buckling of metal tubes, and reduce the diameter
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
embodiment 1
[0039] First, a description will be given of the principle of the molding method in accordance with the present invention with reference to FIGS. 4A and 4B. The molding method in accordance with the present invention is structured such as to arrange a plurality of ring-shaped tools rotatably structured in such a manner as to be brought into contact with the metal tube while pinching an outer periphery of the metal tube to be reduced in diameter, and press the outer periphery of the metal tube by an inner periphery of the individual ring-shaped tool by moving the metal tube and the ring-shaped tools along an axial core (which is inclined at a previously set angle with respect to the axial core of the metal tube) of the reduced diameter portion as well as moving the axial core of the ring-shaped tool away from the axial core of the metal tube, while relatively rotating the metal tube and the ring-shaped tools, thereby reducing the diameter of the metal tube.
[0040] For example, an inn...
embodiment 2
[0052] Next, a description will be given of a structure of a molding apparatus A in accordance with the present embodiment with reference to the accompanying drawings. The molding apparatus A shown in the drawing is structured such that a diameter reduction can be executed at an axial core inclined with respect to the axial core 1a of the metal tube 1 in the end portion of the metal tube 1, by gripping the metal tube 1 to be reduced in diameter in the end portion, arranging two ring-shaped tools 11 and 12 in the outer periphery of the end portion of the metal tube 1, and moving the ring-shaped tools 11 and 12 in a direction crossing to the axial core 1a as well as moving the metal tube 1 in a direction moving the metal tube 1 away from or close to the ring-shaped tools 11 and 12, while rotating the ring-shaped tools 11 and 12.
[0053] The molding apparatus A has a supply car 22 mounted to a pair of rails 21, and the supply car 22 is structured such as to be driven by a supply car dri...
embodiment 3
[0067] Next, a description will be given of an embodiment of a first molding method in accordance with the present invention. First, a description will be given of a molding procedure in the case that a main tube of the metal tube 1 and the axial core of the diameter reducing portion are in line with each other with reference to FIG. 5A. The molding method corresponds to a basic procedure at a time of reducing the diameter in the end portion of the metal tube 1, and makes it possible to easily understand the embodiment mentioned below.
[0068] The supply car 22 is moved in the direction of the arrow a or the direction of the arrow b by driving the supply car driving apparatus 23, and the axial core of the chuck 25 (the axial core 1a of the metal tube 1) is brought into line with the axial core 31a of the frame 31. At the same time, the axial core of the chuck 25 is brought into line with the axial core 31a of the frame 31 by driving the rotating table 28.
[0069] The axial cores 11a a...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Angle | aaaaa | aaaaa |
| Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More