JP2016209889A - Space-saving type piping branch integral molding apparatus and molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus improved in working efficiency for integrally molding piping branches which is space-saving type, shortens molding type, and is capable of precisely performing burring and prepared hole drilling and a method for the same.SOLUTION: A piping branch integral molding apparatus 10 comprises a burring machine 1 for directly molding one or two or more desired holes, a prepared hole drilling machine 2 for performing prepared hole drilling to mold the desired holes that is to be branch pipes with respect to a pipe W as an object to be molded, and a rotary chuck 3 for fixing the pipe W to give rotation operation, where the pipe W is configured to be rotatable in the peripheral surface on an axis along the longitudinal direction with the rotary chuck 3 to perform prepared hole drilling and burring each at a predetermined position while keeping interlock with the rotation operation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pipe branching unit integrated molding apparatus and molding method capable of shortening molding time with a space-saving mold and accurately performing burring and pilot hole machining therefor.

  2. Description of the Related Art Conventionally, various techniques for plastic processing (drawing with a mold) of circular or round holes have been used in pipes used for branch pipes and piping applications. Such plastic working requires at least pilot hole machining and burring. It is necessary to accurately drill the pilot hole when burring the pipe. To that end, it is necessary to use craftsmanship or a high-performance control device (such as an expensive NC milling machine with 3-axis control). It was. In order to perform both pilot hole drilling and burring with high accuracy, a separate machine was inevitably required, and each process had to be separate.

  Using a high-performance control device only for processing a pilot hole in a pipe is not cost effective. In addition, because it is difficult to introduce a high-performance control device depending on the business scale, it took man-hours in the form that was left to the craftsman when machining the pilot hole. In addition, the fact that a certain amount of space is required as a processing characteristic of the pipe requires man-hours for handling.

  As a technique for simultaneously performing each machining process on a pipe, for example, Japanese Patent Application Laid-Open No. 2014-138945 discloses an apparatus that can simultaneously perform burring on a pipe and drilling on the opposite side of the pipe ( Patent Document 1). However, the apparatus disclosed in Patent Document 1 is considered to be an apparatus for mass-producing a certain shape for a small-diameter target mass-production type material that is easy to process such as copper. In such an apparatus, it is necessary to change a die and a tool for preparing a pilot hole each time. For example, even if it functions as a machine for a specific production line such as an automobile, the versatility is low.

  The length of a pipe for general piping branching is at least about 4 m, and when processing a pipe of such a size, moving the pipe itself requires a large scale in terms of space, A more practical processing method has been desired.

JP 2014-138945 A

  The present invention provides an apparatus and a method for integrally forming a pipe branching portion that is space-saving and can shorten the molding time and can accurately perform burring and pilot hole processing therefor, thereby improving work efficiency. With the goal.

  As a result of earnest research, the inventor has fixed the pipe in a predetermined position, and on the other hand, an apparatus and method in which each of the prepared hole drilling and burring machines operate continuously or integrally has the above object. We have learned that it can be achieved.

This invention is made | formed based on the said knowledge, and provides the following invention.
1. Burring process for directly forming one or two or more desired holes to be a branch branch pipe with respect to a pipe as a forming object, and a pilot hole process for pre-preparing a pilot hole to form the hole A molding apparatus for performing at least
The pipe is configured such that the peripheral surface of the pipe is rotatable about an axis along the longitudinal direction, and the pilot hole processing and the burring processing are performed at predetermined positions while interlocking with the rotation operation. The pipe branching unit integrated molding device.

2. A burring machine for performing the burring process;
A pilot hole processing machine for performing the pilot hole processing;
A rotary chuck for fixing the pipe and imparting a rotational motion,
According to a predetermined condition, the pipe is rotated by the rotary chuck, a pilot hole is formed by the pilot hole processing machine at a predetermined position, and then burring is performed on the pilot hole by the burring machine, The pipe branching unit integrated molding apparatus according to 1.

3. And a plurality of pipe support portions that support the pipe and are slidable along a longitudinal direction of the pipe and are movable to a predetermined position suitable for the burring process and the pilot hole process. Or the piping branch part integrated molding apparatus of 2 description.

4). 4. The pipe branching unit integrated molding apparatus according to 3, wherein the pipe support part is a movable pipe ball type support provided with two balls on an upper part of a main body.

5. The pipe burring unit of any one of 1 to 3, wherein the burring machine and the pilot hole machining machine are slidable along the longitudinal direction of the pipe without contacting each other. Molding equipment.

6). Burring process for directly forming one or two or more desired holes to be a branch branch pipe with respect to a pipe as a forming object, and a pilot hole process for pre-preparing a pilot hole to form the hole A molding method for performing at least
The pipe is rotated at a peripheral surface around an axis along a longitudinal direction, and the prepared hole processing and the burring processing are respectively performed at predetermined positions under predetermined conditions. Piping branch integrated molding method.

  According to the apparatus and method of the present invention, it is possible to reduce both spatially and temporally during molding, and it is possible to accurately perform burring processing and pilot hole processing therefor, thereby improving work efficiency. The part can be integrally formed.

According to the apparatus of the present invention, after a pipe as a molding object is set once, it is not moved, and by simply rotating the peripheral surface of the pipe around an axis along the longitudinal direction, Each burring process can be performed.
The apparatus of the present invention realizes space saving by moving the pilot hole processing machine and the burring processing machine without substantially moving the pipe itself.

FIG. 1 is a schematic perspective view showing a state when a pipe is inserted in a molding apparatus according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view showing a state of pilot hole processing and burring processing in the molding apparatus according to one embodiment of the present invention. FIG. 3 is a schematic perspective view showing the state of the pilot hole machining process in the molding apparatus according to one embodiment of the present invention. FIG. 4 is a schematic perspective view showing a state of a burring process in the molding apparatus according to one embodiment of the present invention. FIG. 5 is a schematic perspective view showing a state when the continuous burring process is completed in the molding apparatus according to the embodiment of the present invention. FIG. 6 is a schematic perspective view showing a state of an end face machining process in the molding apparatus according to one embodiment of the present invention. FIG. 7 is a schematic cross-sectional view for explaining burring processing by a burring machine provided in the molding apparatus of FIG. FIG. 8 is a schematic cross-sectional view showing a prepared hole processing machine and a burring processing machine in a molding apparatus according to another embodiment of the present invention.

Hereinafter, the pipe branching unit integrated molding apparatus of the present invention will be described based on preferred embodiments thereof.
As shown in FIG. 1, a pipe branching unit integrated molding apparatus 10 according to an embodiment of the present invention is a burring machine that forms a desired hole by burring for a pipe W as a molding object (work). 1, a pilot hole processing machine 2 for preliminarily preparing a pilot hole to form a desired hole, and a pipe W are fixed, and a peripheral surface is rotated around an axis along its longitudinal direction, The rotary pipe chuck 3 that enables the burring machine 1 and the pilot hole machining machine 2 to perform machining at a predetermined position, and the pipe W is supported in the machining by the burring machine 1 and the pilot hole machining machine 2. In addition, a plurality of movable pipe ball receivers 4 that can move to a predetermined position suitable for the processing are provided.

The burring machine 1 and the pilot hole machining machine 2 are installed on the main frame 5 via rack sliders 6A and 6B, respectively, and can be moved in the longitudinal direction of the molding apparatus 10 along the molding object W. Yes.
In addition, a plurality of movable pipe ball receivers 4 are installed at positions higher than the rack sliders 6A and 6B in the center portion in the longitudinal direction of the main frame 5 via rack sliders 6C smaller than them.
The main frame 5 has such a high frame at the center in the longitudinal direction (for installation of the movable pipeball type support 4) and low left and right frames (barring processing machine 1 and the left and right frames provided so as to be sandwiched from both sides in the width direction). For preparing the pilot hole processing machine 2).

  Since the molding apparatus 10 according to the present embodiment has such a configuration, a desired hole can be formed at any location in the pipe W. As described above, since the pipe branching portion can be formed integrally or continuously, the processing cost can be significantly reduced as compared with the conventional forming method. In addition, while maintaining the strength of the conventional branch pipe, the cost can be greatly reduced and the time required for molding can be greatly reduced, and the space required for each process is not required. About the hole obtained by the shaping | molding apparatus 10 which concerns on this embodiment, it can shape | mold to the branch pipe of the same diameter as a main pipe.

Hereinafter, the example which processes a pipe using the shaping | molding apparatus 10 which concerns on this embodiment is demonstrated.
(1) At the time of pipe insertion First, before setting the pipe W as a molding object, data of various conditions for processing is input in advance. Then, as shown in FIG. 1, the pipe W is inserted, and each of the plurality of movable pipe ball mold receivers 4 does not interfere with the position of burring (a position where there is no hindrance such as contact with a hole during processing). ) Thereafter, the pilot hole processing machine 2 moves to a predetermined position.

(2) At the time of drilling the prepared hole The angle direction of the prepared hole of the pipe to be formed is determined by the rotation of the rotary chuck 3. The rotary chuck 3 is connected to a motor (not shown) and serves to turn the pipe. As a result, pilot hole processing from various directions and subsequent burring can be performed. Then, as shown in FIG. 2, the pipe W is clamped by the two pipe clampers 2a and 2b attached to the pilot hole processing machine 2, and the pilot hole is processed in this state.
In FIG. 2, for convenience, the state of the pilot hole machining and the state of burring described later are shown together.

  Here, the movable pipe ball type holder 4 itself moves on and off the rail on the rack slider (small) 6C (base) and can move freely. The movable pipe ball type receiver 4 has two left and right balls 4a and 4a attached to the upper part of the main body (see FIG. 2). The balls 4a, 4a can be freely moved on the movable pipe ball mold receiver 4 while supporting the pipe.

  The position of the plurality of mobile pipe balls 4 is set in advance so as to avoid the convex hole after burring, so that the pipe can be formed without any trouble even during burring after the pilot hole. it can. The movable pipe ball 4 can be moved after the pipe W is inserted, or the pipe W can be moved before the insertion.

(3) Continuous pilot hole processing As shown in FIG. 3, the above-described pilot hole processing step (2) is continuously performed on a predetermined portion of the pipe W. At this time, the pilot hole processing machine 2 works with the rotary chuck 3 while moving on the rack slider 6 </ b> A, and sequentially provides pilot holes at predetermined positions on the pipe W whose position has been determined. When the pilot hole machining process is completed, the pilot hole machining machine 2 moves to a predetermined position.

(4) Burring When rotating from the pilot hole machining process to the burring machine process, the rotary chuck 3 aligns the pilot hole of the pipe W from the pilot hole machine 2 side to the burring machine 1 side. In the present embodiment, both the burring machine 1 and the pilot hole machining machine 2 are structured to be inclined by 45 ° with respect to the vertical surface toward the inside of the molding apparatus 10 having the pipe W. The hole will be rotated 90 °.

  Then, as shown in FIG. 4, the burring machine 1 moves to a predetermined pilot hole position and performs burring. The burring process is performed by putting a ball into the pipe through the pilot hole, and opening and pulling out so that the plane area has a size corresponding to a desired hole to be formed. At this time, as shown in FIG. 7, the burring machine 1 is subjected to a process in which the receiving mold 11 and the pulling mold 12 are aligned with the pipe W, and a force is applied from the inside in the direction of the arrow with the pulling mold 12.

  A branch portion having a perfect hole or a circular hole close to a perfect circle according to this embodiment can be formed. The forming apparatus 10 according to the present embodiment applies a force with a die by the burring machine 1 and performs a plastic deformation that is permanently deformed. Therefore, pressure loss can be reduced and a hole in a branching portion that draws a smooth curved surface is formed. Can be molded. In addition, the hole of a branch part can shape | mold the shape which aimed not only at one direction but the cross, three directions, etc. about one cross-sectional part of a pipe.

(5) Continuous burring process The above-described burring process of (4) is continuously performed on the other pilot holes in the pipe W. At this time, the burring machine 1 performs burring at predetermined positions sequentially with respect to the pipe W whose position is determined in conjunction with the rotary chuck 3 while moving on the rack slider 6B. When the burring process is completed, the burring machine 1 moves to a predetermined position as shown in FIG.

(6) End face processing With the rotary chuck 3, the position of the hole in the pipe W formed by burring is returned again from the burring machine 1 side to the prepared hole processing machine 2 side. The pilot hole processing machine 2 performs a finishing process on the end surfaces of the holes formed by burring. End face processing is performed by deforming the blade with a spindle attached to the pilot hole processing machine 2 and using the deformed blade.
Then, each of the burring processing machine 1 and the prepared hole processing machine 2 returns to a predetermined position, and the process ends.

  The apparatus according to the present embodiment can process the integrated pipe in which the hole of the pipe branching portion is directly formed through the processes (1) to (6), but if necessary, the subsequent process. For example, a welding process or the like can be added.

  The size of piping to be processed by the apparatus of the present invention is about 50φ to 130φ.

  The present invention can preferably provide the molding apparatus according to the above-described embodiment, but can be changed to other embodiments without departing from the gist of the present invention.

  As another embodiment, for example, the upper part of the burring machine 1 and the pilot hole machining machine 2 in the molding apparatus 10 described above is connected and integrated, and the pipe is rotated by the rotary chuck 3 by sliding it. In addition, a configuration in which the pilot hole processing and the burring processing are sequentially performed for each hole, and the like can be given.

Further, as shown in FIG. 8, it is also possible to apply one that sequentially processes from the upper direction of the pipe using a burring machine 81 and a pilot hole machine 82 that are bent at right angles from opposite directions. In this case, the processing machines are prevented from coming into contact with each other at the upper part of the pipe (so as to pass each other), and the rotating operation of the pipe can be reduced. In addition, errors can be reduced and the accuracy of molding can be further improved.
Furthermore, it is also possible to set each processing machine at the same position with a time difference, or to enable each processing machine to expand and contract.

  The present invention provides a space-saving type of apparatus and method for integrally forming a pipe branching portion that can shorten a molding time and can accurately perform a burring process and a pilot hole process therefor, improving work efficiency. With the above applicability.

DESCRIPTION OF SYMBOLS 1 Burring machine 11 Receiving die 12 Drawing type 2 Pilot hole processing machine 2a, 2b Pipe clamper 3 Rotating pipe chuck 4 Mobile pipe ball type receiving 5 Main frame 6A Rack slider (large)
6B Rack slider (small)
81 Burring machine 82 Pilot hole processing machine 10 Pipe forming machine W Workpiece

Claims (6)

Burring process for directly forming one or two or more desired holes to be a branch branch pipe with respect to a pipe as a forming object, and a pilot hole process for pre-preparing a pilot hole to form the hole A molding apparatus for performing at least
The pipe is configured such that the peripheral surface of the pipe is rotatable about an axis along the longitudinal direction, and the pilot hole processing and the burring processing are performed at predetermined positions while interlocking with the rotation operation. The pipe branching unit integrated molding device. A burring machine for performing the burring process;
A pilot hole processing machine for performing the pilot hole processing;
A rotary chuck for fixing the pipe and imparting a rotational motion,
The pipe is rotated by the rotary chuck according to a predetermined condition, a pilot hole is formed by the pilot hole processing machine at a predetermined position, and then burring is performed on the pilot hole by the burring machine. Item 1. The apparatus for integrally forming a pipe branching section according to Item 1.   The pipe further comprises a plurality of pipe support parts that support the pipe and are slidable along a longitudinal direction of the pipe and are movable to a predetermined position suitable for the burring process and the pilot hole process. The pipe branching unit integrated molding apparatus according to 1 or 2.   The pipe branching unit integrated molding apparatus according to claim 3, wherein the pipe support part is a movable pipe ball type support provided with two balls at the upper part of the main body.   The pipe branching portion according to any one of claims 1 to 3, wherein the burring machine and the pilot hole processing machine are slidable along the longitudinal direction of the pipe without contacting each other. Integrated molding device. Burring process for directly forming one or two or more desired holes to be a branch branch pipe with respect to a pipe as a forming object, and a pilot hole process for pre-preparing a pilot hole to form the hole A molding method for performing at least
The pipe is rotated at a peripheral surface around an axis along a longitudinal direction, and the prepared hole processing and the burring processing are respectively performed at predetermined positions under predetermined conditions. Piping branch integrated molding method.