TH41633A - Machines and methods for forming and punching of hydro-tubular profiles - Google Patents

Abstract

Methods and machines for forming complex-shaped scaffolds from tubular flanges where labs are transported from station to station, and tooling is carried out to the blank at each station. For example, at the first station The Blanc is expanded into a pipe with a variable cross-section over the entire length of the pipe by applying pressure to the inside of the pipe and pressing pressure to the opposite end of the pipe at the same time, which is appropriate. Than at another station The pre-formed pipe is pre-formed by making a bend there. The bend in the pre-formed pipe is raised at another station while the pre-formed pipe is bent at another station. The workouts are pre-formed and the flow of material is bent to the die slots at those stations. Is controlled to reduce the amount of fold that may occur. The contour of the scaffold is completed at another station by producing a transverse bend and altering the cross-sectional shape of the bent pipe. A hole may then be drilled into the scaffold. The finished other station is by applying pressure to the inside of the frame part with hydraulic fluid and colliding with the frame part with a punch. The final station cuts the ends and flushes the inside of the scaffold before it is removed for further conveying.

Claims (6)

1. Sequential molding trajectory of scaffold inserts with inner sections, visual contour appearance and cross-section appearance from tubular blanking material with opposite ends, flattened wall. And the inner part of the blank. That consists of steps; Expanding the blanks in the first cavity to form an inflated tube consisting of a step a) the arrangement of the blank in the first die slot b) the internal pressure applied to the inner part. To stabilize the blanc wall; And c) external pressure applied to the opposite end of the blanks allowing material to flow into the first die hole to form the inflated tube. Bending an inflated tube in the second die in the first plane to form a pre-formed pipe consisting of steps a) placement of the inflated tube in the die cavity b) providing precision Push against the inflated tube in the strait; And c) bending of the impregnated pipe to form a pre-formed tube. Bending of pre-formed pipes in the die slots in the second plane containing the steps; a) a pre-formed weave arrangement in the die cavity; b) pressure applied to the pre-formed pipe in the die cavity; And c) Bending of pre-formed tubing in the die slots forming the scaffold by modifying the visual contour and cross-section appearance of the enlarged tube. Article 1 also includes procedures for Giving pressure to the inside of the scaffold with hydraulic fluid and drilling holes in the scaffold parts. The inner part of the frame is subjected to pressure. 3. Method of claim 1 where the process of constructing the scaffold from the tubular blanking material includes arc forming. A bend with one of the radius of curvature in the extended pipe, and Reducing the radius of the bend from the first bend radius To have a second radius of curvature 4. Method according to claim 3 also includes steps Controlling the material flow of the expanded pipe By clamping the opposite end of the pipe When the part is bent It is about to be formed. 5. The method of forming the order of the die cavity of the frame parts with the inner part, the appearance of the form along the line of sight. And the appearance of the cross-section from the tubular blanks material with opposite ends, the blank wall and the inner blank. That consists of steps; Expanding the blanking part in one of the die slots to form an inflated tube consisting of a step a) the placement of the blank in the first die slot b) the internal pressure applied to the side part. In the blanks to stabilize the blanks; And c) The external pressure is applied to the opposite end of the blanks, which allows the material to flow into the first die to form the inflated tube. Bending an inflated tube in the second die in the first plane to form a pre-formed pipe consisting of steps a) placement of the inflated tube in the die cavity b) providing precision Push against the inflated tube in the die cavity; c) arrangement of clamping of the opposite ends of the pipe to control material flow; And d) Bending of the inflated pipe to pre-formed pipe. Bending a pre-formed pipe in the third ventricle in the second plane formed; a) placement of the pre-formed pipe in the third die cavity; b) the pressure of the pre-formed pipe in the third die; And c) Bending a pre-formed tube in the third die cavity forming the scaffold by modifying the contour shape and the cross shape of the inflated tube. 6. A method for forming scaffolds from tubular blankets with opposite ends and inner parts. Consists of steps The blanking is placed in the first die slot that opens. The first die slot Determine the expanded pipe, the first die cover. Dispensing hydraulic pressure to the inside of the blank. And propel the opposite end of Yablang To make the blank to expand to the first die And resulting in a pipe that has been expanded Easing And the pressure supplied to the ducts that have been expanded Delivery of pipes extended from the first die. To the second open die The second die is set. A frame piece with a changing eye-level look. And the appearance of the different cross-sections Closing the second die The distribution of hydraulic pressure above the limit results in the material of the pipe being extended to the inside of the expanded pipe to form the scaffold. Release of internal pressure; And the removal of the frame part from the second die slot. 7. Method according to claim 6, where the internal pressure and compression are applied to the blanking at the same time. Article 6 where the internal pressure is supplied to the blank form while in the first die slot is greater than the effective limit of the blanking material. 9. Method for forming the frame parts from the blank form. Pipe with opposite end and inner part Consists of steps The blanking is placed in the first die slot that opens. The first die slot Determines which pipes are expanded. Closing the first die slot Dispensing hydraulic pressure to the inside of the blank. And propel the opposite end of Yablang To make the blank to expand to the first die And resulting in a pipe that has been expanded Easing And the pressure supplied to the ducts that have been expanded Delivery of pipes extended from the first die. To the second open die The second die is set. Bent piece of pipe Forming of the bent pipe by supplying hydraulic pressure below the effective limit of the extended pipe to the inside of the expanded pipe. When the second die cutout is closed around the expanded pipe. Removing the bent pipe from the second die Bent pipe placement in the third die The third die. Define scaffold parts with variable eye-level looks and changing cross-sectional looks. The hydraulic pressure is applied above the limit that results in the material of the pipe being extended to the inside of the pipe that has been bent to obtain a frame element. Release of internal pressure; And the removal of the frame from the third die slot 1 0. The method of Clause 9 also includes a procedure. Bent pipe arrangement In the fourth opening After the blank was expanded. Where the fourth die slot defines a bent pipe with a smaller bend radius. The bent pipe is set up by the second die. Supplying hydraulic pressure to the pipe that has been bent. When the fourth die cutout is closed around the bent pipe. Removing the bent pipe from the fourth die And send it to the third channel 1 1. A machine for forming frame parts from a pipe flange with opposite pai. With the first station That has a way for expanding the blank to a pipe with a convex section A second station with a combined hammer and die for supplying hydraulic pressure within. To the enlarged tube And presses the expanded pipe that is internally pressurized between the hammer and die to form the pre-formed pipe. A third station with a combined hammer and die for supplying internal hydraulic pressure to the bent pipe. And compresses where the internal pressure is obtained between the hammer And dies to form curved parts with the desired eye-level appearance And the appearance of the transformed cross-section As required 1 2. The device according to claim 11, where the second station includes a hammer And a second set of co-working dies And a path for supplying internal hydraulic pressure to the pre-formed pipe. And compress the pre-formed pipe Between the hammer and the second set of dies To form a bent pipe with the desired plane appearance 1 3. Machine for forming frame parts from tubular blankets with opposite ends. And the inner part consists of Station one That provided the first die slot with the center point A pair of seals at each end of the first die. The sealing unit is able to deliver hydraulic fluid to the inside of the blank. A path for moving the double seal unit to the center of the die hole where the blankets are positioned in the first die. The blank is longer than the die slots, so the double seal unit. Was moved to the die in such a way that It captures the opposite end of the Blanc. And then the hydraulic fluid is delivered to the inside of the pipe. This creates a pressure against the inside of the blank. The sealing unit continues to move towards the center of the die cavity. It places the lang under a second station with a hammer and die that works together to supply the internal hydraulic pressure. To the enlarged tube And presses the expanded pipe that is internally pressurized between the hammer and die to form the pre-formed pipe. A third station with a combined hammer and die for supplying internal hydraulic pressure to the bent pipe. And compresses where the internal pressure is obtained between the hammer And dies to form curved parts with the desired eye-level appearance And the appearance of the transformed cross-section As required 1 4. The machine according to claim 13 also includes a saddle transmission system for passing pipes between the stations 1 5. The machine according to claim 13 also includes a fourth station, providing a punching unit. And a path for applying pressure to the inside of the frame part that is transmitted from the third station. Where the tube is rubbed, it gets the first pressure. Before the drilling unit drills a hole in pipe 1. 6. The machine according to claim 13 also includes grips that are fixed in the seal. Each unit of the second station A gripper with at least one ridge on it. Where the end of the pipe is arranged on the ridge of the jigs Where the push rod can work with the sealing unit Will hold the ridge line with the pipe To control the material flow of the pipe to the hammer And the second station's die