JP2005152947A - Laser machining apparatus having pipe supporting mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laser machining apparatus having a pipe supporting mechanism in which the pipe supporting mechanism including a pipe index apparatus and a material feeder is mounted in a movement-controllable manner on a work table of the laser machining apparatus, the set-up of pipe to be machined of small dimension is performed in a short period of time, and works can be carried in/carried away by the operation of an operator at a fixed position. <P>SOLUTION: The laser machining apparatus 1 is provided with a pipe supporting mechanism KS for positioning a machining part of a pipe WP to be machined, wherein the pipe supporting mechanism KS comprises: an index unit 8 in which a material feeder 82, a pipe support 9, a pipe index apparatus 81 and a servo motor 90 are mounted on a same base plate 8a; the pipe support 9; and a tailstock 10, and is arranged on an X-axis carriage 6 on a Y-axis carriage 5, and freely movable on a worktable 2 of the laser machining apparatus 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a laser processing apparatus including a pipe support mechanism.

  For example, a pipe index device has been developed for an optical axis moving type laser processing machine, but a material moving type laser processing machine is limited to the case of flat plate processing, and there is no example in which a pipe index device is installed.

  1) As a pipe support method and apparatus for a pipe processing apparatus, the pipe on the processing table of the pipe processing apparatus is automatically gripped and supported with the gripping tool of the pipe rotating apparatus on the processing table. At the same time, the tip of the pipe is pressed against and supported by the pipe rotating device with a core push stand on the processing table, and processed with a pipe processing tool while rotating the pipe. Cut nearby. By detecting the completion of this processing, the rear end side of the pipe is gripped by the gripping tool of the pipe gripping device on the movable table provided so as to be movable back and forth outside the processing table, and the gripping tool of the pipe rotating device is gripped by the pipe The pipe is advanced further to the set position while being further opened and moving the movable table forward while inserting the pipe through the gripping tool of the pipe rotating device. An invention is disclosed in which a pipe is gripped and fixed by a gripping tool of a pipe rotating device, and the pipe is processed by a pipe processing tool (see, for example, Patent Document 1).

2) Established for the purpose of ensuring laser processing for high-speed and high-precision processing and providing a laser processing machine capable of pipe processing by attaching a larger pipe gripping device to the same size laser processing machine. A work table movable in the X-axis direction is provided on the bed, and a laser processing head movable in the Y-axis direction perpendicular to the X-axis direction is provided on the upper part of the gate-type frame erected over the bed. An invention is disclosed in which a pipe gripping device that is movable in the X-axis direction on the bed is detachably provided at one end in the X-axis direction of the work table (for example, Patent Document 1). 2).
JP-A-10-235495 JP 2001-150175 A

  In the case of the material movement type laser processing machine, the pipe index device has a problem that it is difficult to mount the pipe index device because the processing function of the machine is impaired in the case of the conventional fixed installation method.

  In addition, in the case of Patent Document 1 of 1) and Patent Document 2 of 2), the pipe index device and the material feeding device are not controllably mounted on the work table of the laser processing apparatus. Therefore, in a certain type of conventional laser processing machine, a user image of a laser processing machine dedicated to flat plate processing is fixed.

  The present invention has been made in view of the above circumstances. A pipe support device including a pipe index device and a material feeding device is mounted on a work table of a laser processing machine so as to be movable and controllable. It is an object of the present invention to provide a laser processing apparatus including a pipe support mechanism that enables short-time setup processing of a pipe for use and allows a work to be carried in and out by a fixed position operation of an operator.

  This invention can solve the said subject by providing the following structure.

  (1) A laser processing apparatus having a pipe support mechanism that allows a processing portion of a processing pipe to be freely positioned, and the pipe support mechanism includes a material feeding device, a pipe support, a pipe index device, and a servo motor that are the same base plate. A pipe support mechanism comprising an index unit, a pipe support, and a core pusher mounted on the X-axis carriage, and arranged on the X-axis carriage on the Y-axis carriage so as to be movable on the work table of the apparatus. A laser processing apparatus comprising:

  (2) The index unit, the pipe support, and the core pushing table are each disposed on the X-axis carriage via a clamp fixing portion from which a work clamp portion of the X-axis carriage is removed. A laser processing apparatus having a pipe support mechanism.

  (3) The material feeding device moves along a shaft a pipe clamp portion for gripping the processing pipe, and a pipe clamp adjustment portion for opening and closing the pipe clamp portion in accordance with the thickness of the processing pipe. The preceding item (1) comprising a pipe clamp drive unit and a material feed drive unit that automatically feeds the machining pipe together with the material feed device in the axial direction of the machining pipe following the operation of the pipe clamp adjustment unit A laser processing apparatus comprising the pipe support mechanism described above.

  (4) The above-described core pushing table is a retractable type pushing board that can hold a space for moving the machining pipe so that it does not get in the way when it is attached to the machining pipe. A laser processing apparatus comprising the pipe support mechanism according to 1) or (2).

  (5) The laser processing apparatus including the pipe support mechanism according to the item (3), wherein the pipe clamp driving unit and the material feeding driving unit are configured by a fluid cylinder.

  A pipe indexing device and a pipe support mechanism including a material feeding device are mounted on the work table of the laser processing machine in a freely controllable manner, enabling short-time setup processing of small-sized processing pipes and the operator's fixed position. A workpiece can be carried in and out by operation, and a laser processing apparatus having a pipe support mechanism with an expanded function can be provided.

  Hereinafter, embodiments of a laser processing apparatus including a pipe support mechanism according to the present invention will be described.

  FIG. 1 is an overall perspective view showing an example of a laser processing apparatus having a pipe support mechanism according to the present invention, FIG. 2 is a perspective view showing an example of the configuration of a pipe support mechanism, and FIG. 3 is the configuration of a material feeding apparatus. It is a side view which shows an example.

  This embodiment is an example in which the pipe support mechanism according to the present invention is applied to the material movement type laser processing apparatus 1, and this pipe support mechanism KS can freely position the processing portion of the processing pipe WP. The material feed device 82, the pipe support 9, the pipe index device 81, and the servo motor 90 are mounted on the same base plate 8a, the pipe support 9 and the core push table 10, and the Y axis It is arranged on the X-axis carriage 6 on the carriage 5 so as to be movable on the work table 2 of the apparatus 1. 3 is a laser processing head.

  The pipe index device 81 performs circumferential rotation control of the machining pipe WP from the NC control device 4 and rotates the gripped machining pipe WP in the circumferential direction to move the commanded machining point to the laser machining plane. Let Further, the pipe support 92 in the index unit 8 corrects the blur of the processing pipe WP, and the material feeding device 82 enables continuous processing of a small size.

  The index unit 8, the pipe support 9, and the core support 10 are respectively attached to the clamp fixing portion 7 from which the work clamp portion of the X-axis carriage 6 is removed via base plates 8 a, 9 a, 10 a, Similarly, it is fixed with a fixed handle 7b.

  The material feeding device 82 includes pipe clamp portions 82g and 82g for holding the processing pipe WP, and a pipe clamp adjustment portion 82d for opening and closing the pipe clamp portion 82g according to the thickness of the processing pipe WP. The clamp arms 82e and 82e are rotated as indicated by the arrow C in accordance with the displacement (in the direction of arrow B in the figure) of the pipe clamp drive parts 82a and 82a moved along the WP axis and the pipe clamp adjustment part 82d. The processing pipe WP can be gripped or released by opening and closing with the support shafts 82f and 82f as fulcrums.

  Further, the main body of the material feeding device 82 stands on the movable base 83 by stays 82h and 82h, and the material feeding drive unit 84 connected to the movable rod 84a and the connecting portion 84b operates in the axial direction of the processing pipe WP. The processing pipe WP is automatically fed together with the material feeding device 82 through the movable base 83 and along the guide (not shown) of the base plate 8a of the index unit 8 in the direction of the arrow D. 82i and 82i are ribs for reinforcing the stays 82h and 82h. Reference numerals 82b and 82b denote rods which are paired with the pipe clamp driving portions 82a and 82a, and the pipe clamp adjusting portion 82d is moved via the rod connecting portions 82c and 82c. As shown in FIG. 3, when the rods 82b and 82b move by expanding and contracting in the direction of the arrow A, the pipe clamp adjusting portion 82d moves as shown by the arrow B in accordance with or in proportion to the movement.

  The pipe support 9 has a role of holding the processing pipe WP from below and correcting a blur at the time of material feeding movement. Further, the leg opening widths of the pipe receiving portions 9d and 9d are variably adjusted according to the diameter of the processing pipe WP. For this variable adjustment, there is an open leg width adjusting portion 9c that can adjust the open leg width of the pipe receiving portions 9d and 9d by the turning action of the handle 9b when the cross arm 9e is screwed with the screw portion. The pipe receiving portions 9d and 9d are cylindrical in shape, and their smooth peripheral surfaces are in contact with and held by the processing pipe WP.

  The core push stand 10 has a pipe end fixing function of the processing pipe WP and an end stopper function of the processing pipe WP. When the processing pipe WP is attached to the pipe support mechanism KS, it is tilted and interferes. In order to avoid this, a retractable core pusher (not shown) that can hold a space for moving the processing pipe WP is provided.

  The pipe clamp drive unit 82a and the material feed drive unit 84 are configured by a fluid cylinder such as a pneumatic cylinder or a hydraulic cylinder.

  The base plates 8 a, 9 a, and 10 a on which the pipe index device 8, the pipe support 9, and the retractable core pushing table 10 are respectively mounted are detachable from the clamp fixing portion 7. Therefore, when used as a laser processing apparatus dedicated to plane processing, the work clamp portion may be attached by removing the pipe support mechanism KS.

  The operation will be described based on the above-described configuration and drawings.

  In the material movement type laser processing machine, the clamp portion of the work clamping device is removed, and the index unit 8, the pipe support 9, and the retractable core pusher base 10 constituting the pipe support mechanism KS are first replaced with the ant 6a of the X-axis carriage 6. And a dovetail groove 7a are attached to a clamp fixing portion 7 which is movable and controllable on a clamp guide rail G via respective base plates 8a, 9a and 10a, and fixed using respective handles 7b.

  When the processing pipe WP is a small size, for example, a cut pipe, the pipe index device 81 is disposed near the locating pin for positioning.

  Next, a cable is connected to the servo motor 90 of the index unit 8 and air or hydraulic piping to the material feeding device 82 and the pipe index device 81 is connected in advance. These pipes use a tube or hose made of an elastic body such as rubber, and are covered with a bellows structure so as to be flexible so that they can be freely moved on the work table without any trouble.

  Next, when attaching the processing pipe WP to the pipe support mechanism KS, first, the tiltable core pushing table 10 is tilted, and the predetermined pipe WP is inserted with the chuck 81a of the pipe index device 81 opened. Inserted into the pipe index device 81, and in the embodiment, the loading direction of the processing pipe WP is the direction of the core push table, so that the core push table itself is made to be retractable.

  Next, an index vise switch (not shown) is turned on to close the chuck 81a of the pipe index device 81 and fix the processing pipe WP. In this case, the operation mechanism of the chuck 81a is pneumatic.

  Next, the material feeding device 82 is fixed by contacting the end of the processing pipe WP with the core push table 10 by several stroke feeding, for example, by using an inching operation. At this time, the index vice has an automatic opening / closing function, and the chuck 81 a is open in conjunction with the material feeding device 82.

  The pipe supports 9 and 92 are then set to the prescribed height indicated.

  Next, while adjusting the position on the X-axis, the Y-axis carriage 5 moves the processing pipe WP on the work table 2 to a predetermined position within the processing range where the laser processing head 3 is positioned based on a command from the NC device 4. Position.

  Then, machining is performed in accordance with the pipe machining program of the NC device.

  For example, if the length of the workpiece (pipe) is 400 mm or less after the processing is finished, the workpiece shooter (not shown) is usable, and the product can be carried out together with the workpiece shooter. The specified process cycle is complete.

  The following processing is performed according to the program.

  As described above, by using the pipe support mechanism according to the present invention, it is possible to process a pipe-shaped workpiece with a material movement type laser processing apparatus, and by using a material feeding apparatus and an existing work shooter in combination, Enables continuous machining and continuous unloading of products with dimensions (sketch dimensions), and further enables the start and end of machining from the machine origin by the installation position of the pipe index device, so that the operator can move the workpiece without moving from a fixed position. Loading and unloading became possible.

  The conventional material movement type laser processing machine wipes out the user image that it is exclusively for flat plate processing, and the user layer can be expanded.

The whole perspective view which shows an example of the laser processing apparatus which comprises the pipe support mechanism concerning the present invention. The perspective view which shows an example of a structure of a pipe support mechanism Side view showing an example of the configuration of the material feeder

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Laser processing apparatus 2 Work table 3 Laser processing head 4 NC control apparatus 5 Y-axis carriage 6 X-axis carriage 6a Dovetail 7 Clamp fixing | fixed part 7a Dovetail groove 7b Fixing handle 8 Index unit 8a, 9a, 10a Base plate 9, 92 Pipe support 9b Handle 9c Opening leg width adjusting portion 9d Pipe receiving portion 9e Cross arm 10 Core pushing table 81 Pipe index device 81a Chuck 82 Material feeding device 82a Pipe clamp driving portion 82b Rod 82c Rod connecting portion 82d Pipe clamp adjusting portion 82e Clamp arm 82f times Moving shaft 82g Pipe clamp part 82h Stay 82i Rib 83 Movable base 84 Material feed drive part 84a Movable rod 84b Connection part 90 Servo motor KS Pipe support mechanism WP Processing pipe

Claims (5)

  A laser processing apparatus equipped with a pipe support mechanism that enables positioning of a processing part of a processing pipe, wherein the pipe support mechanism has a material feeding device, a pipe support, a pipe index device, and a servo motor mounted on the same base plate. A pipe support mechanism comprising an index unit, a pipe support, and a core pusher, each of which is disposed on an X-axis carriage on a Y-axis carriage and is movable on a work table. A laser processing apparatus comprising:   2. The pipe support mechanism according to claim 1, wherein the index unit, the pipe support, and the core support are disposed on the X-axis carriage via a clamp fixing portion from which a work clamp portion is removed. A laser processing apparatus comprising:   The material feeding device includes a pipe clamp portion for gripping a processing pipe, and a pipe clamp adjustment portion for moving the pipe clamp portion along the axis to open and close the pipe clamp portion according to the thickness of the processing pipe. The drive unit and a material feeding drive unit that automatically feeds the processing pipe together with the material feeding device in the axial direction of the processing pipe in accordance with the operation of the pipe clamp adjusting unit. A laser processing apparatus comprising the pipe support mechanism according to 1.   The core support is a retractable core support that can hold a space for moving the processing pipe so that the processing pipe does not get in the way when the processing pipe is attached. A laser processing apparatus comprising the pipe support mechanism according to claim 1.   4. The laser processing apparatus having a pipe support mechanism according to claim 3, wherein the pipe clamp drive unit and the material feed drive unit are formed of a fluid cylinder.

Images