JP2005177948A - Complex type machining center - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide constitution of a complex type machining center capable of automating a series of the said machining processes. <P>SOLUTION: This complex type machining center is respectively provided with machining centers supporting a tool or a workpiece 14 in a state capable of moving them in a state of separately arranging them, a main spindle 9 to rotate in a state of holding the tool or the workpiece 14 and a swiveling table 11 capable of holding the tool or the workpiece and swiveling. An arm 4 carrying the tool or the workpiece 14 is enabled to respectively and reciprocally move between a magazine 1, the main spindle 9 and the swiveling table 11 and enabled to sequentially and automatically changing the tool or the workpiece 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a machining center that performs a necessary work on a workpiece to be machined using a predetermined tool and a rotating spindle.

  In a machining center that performs turning, milling, drilling, reamer, tapping, etc. on a workpiece based on a predetermined tool, in most cases, the workpiece is first fixed on a swivel table while rotating the workpiece by a spindle. When turning with a turning tool, as the next step, the workpiece is gripped by a turning table, and if necessary, each of the above processes is performed while rotating a tool for milling, drilling, reamer and tapping with a spindle. Many.

  Although it is required to perform automation in the above-mentioned machining, the configuration is such that the tool that is gripped on the spindle is automatically replaced sequentially, or the workpiece is gripped on the spindle and then turned on the turntable in turn. It is only to the extent that a configuration for exchanging tools by rotation is proposed.

  That is, the construction of a machining center that can automatically realize a series of other processes such as milling, drilling, reamer, and tap from the initial turning has not been proposed so far.

Japanese Patent Laid-Open No. 64-16344.

JP-A-7-290331.

  An object of the present invention is to provide a composite machining center that can automate the series of processing steps.

  In order to solve the above-described problems, the configuration of the present invention includes a machining center and a tool that support a tool or workpiece 14 in a state where they are individually arranged in a movable state, as shown in the block diagram of FIG. Alternatively, the main shaft 9 that rotates in a state in which the workpiece 14 is gripped, the swivel table 11 that grips the tool or the workpiece 14 and that can turn, and the arm 4 that transports the tool or the workpiece 14 are provided in the magazine 1. The composite machining center is based on the fact that the spindle 9 and the turntable 11 are movable relative to each other and the tool or workpiece 14 is exchanged.

  Based on the above solution, in the present invention, the corresponding tool or workpiece taken out from the magazine by the arm is placed on the spindle and the turntable, respectively, and if necessary, on the spindle or the turntable. After moving the workpiece from one position to the other, installing a predetermined tool on the swivel table or spindle, a series of processes including turning and other milling, drilling, reamer, tapping, etc. It becomes possible to fully automate, and the machining efficiency for the workpiece can be improved.

  2 and 3 show a typical embodiment of the present invention, in which one arm 4 exchanges between the spindle 9 and the magazine 1, exchanges between the swivel table 11 and the magazine 1, and the spindle. 9 and the turntable 11 are exchanged.

  Such one arm 4 is supported by the robot 2 so that the arm 4 can move linearly in the horizontal direction and the vertical direction, rotates around the longitudinal direction as a central axis, and supports the arm 4. It is designed to be capable of turning in the horizontal direction around the center axis and revolving by vertical direction turning.

  And the holder 5 is interposed between the connection part of the spindle 9 or the turning table 11 and the connection part of the tool or workpiece 14, and the holder 5 is moved alone or together with the tool or workpiece 14 by the arm 4. The holder 5 is gripped by the connecting portion of the spindle 9 or the swivel table 11 together with the tool or workpiece 14 and after the tool or workpiece 14 is released from the grip, It is also possible to move to the magazine 1 by the arm 4.

  FIG. 2 (a) shows a case where a tool or workpiece 14 (not shown) is moved between the main shaft 9 and the turning table 11 by the arm 4 through the holder 5 in particular. The main shaft 9 and the head 8 can move linearly in the horizontal and vertical directions, the swivel table 11 can swing around the horizontal axis, and the magazine 1 supports the tool or workpiece 14 individually. This shows that the supporting piece is rotatable in the vertical plane, and the holder 5 can be inserted and removed when the holder 5 is set in the lower direction by rotation.

  As shown in FIG. 3A, the movement of the arm 4 between the magazine 1 and the main shaft 9 is performed, for example, by a revolving motion by a horizontal turn around the support column 3 by the robot 2 supporting the arm 4 as a central axis. (In FIG. 3A, illustration of the holder 5, the tool, or the workpiece 14 is omitted.) The movement between the magazine 1 and the turntable 11 is also shown in FIG. As shown in FIGS. 3B and 3C, the holder 5 is moved by a revolving motion similar to that shown in FIG. 3A (the holder 5, tool 14 or workpiece 14 is also shown in FIGS. 3B and 3C). Is omitted.)

  As described above, in the embodiment shown in FIGS. 2 and 3, the tool or workpiece 14 is arranged on either one of the magazine 9 from the initial magazine 1 with respect to the spindle 9 and the turning table 11 via the holder 5. , The workpiece 14 is moved from one of the main spindle 9 or the swivel table 11 to the other as necessary, and another machining is continued as necessary. For example, the initial workpiece 14 is moved to the magazine 1. 1 to a main spindle 9, and one or a plurality of turning tools for turning are arranged on a turning table 11, and after turning, as shown in FIG. After moving to the swivel table 11, another tool is arranged on the main shaft 9 by moving it from the magazine 1 by the arm 4, and other machining can be continued as shown in FIG. It becomes possible.

  In the following, description will be made in accordance with examples.

  In the embodiment, as shown in FIG. 5, on the assumption that the connecting portion of the spindle 9 or the turning table 11 is connected to the tool or the workpiece 14 through the holder 5, 9 or the side connected to the swivel table 11 is a convex taper shape, and the side of the main shaft 9 or the swivel table 11 to be fitted with the convex taper shape is a concave taper shape. A plurality of large arcs having a diameter larger than the length from the center position to the position of the longest distance around the outer periphery, and the large It is characterized by being formed by a curve that smoothly connects between the arcs.

  Normally, when the tool or workpiece 14 is arranged on the spindle 9 or the turning table 11, the tool or workpiece 14 is inserted on one side of the holder 5, and the other side of the holder 5 is turned on the spindle 9 or turning. In the case of being inserted into the table 11, the main shaft 9, and the turntable 11 and the holder 5 have a convex key and a concave key groove, respectively, as shown in FIG. Thus, the rotation of the spindle 9 and the turntable 11 is transmitted to the tool or workpiece 14 via the holder 5.

  However, a slight gap is easily generated between the key and the key groove, and the accuracy of transmitting the rotation is inevitably lowered by the gap.

  The clamp mechanism according to the embodiment employs a clamp mechanism having a trade name of “Colomount Capto Tool” manufactured by Santovic Co., Ltd. By adopting a so-called rice ball-shaped cross section, the spindle 9 or the rotary table 11 can be used as a holder. When the rotation is transmitted to 5, a gap is not always generated, and the above-described decrease in accuracy can be prevented.

  INDUSTRIAL APPLICABILITY The present invention can be used as an apparatus that realizes efficient machining in the field of a machining center that performs machining on a workpiece using a tool.

It is a block which shows the basic principle of this invention. The embodiment regarding the movement state of an arm and the movement or rotation state of a main shaft and a turning table is shown, (a) is a front view with the side where the magazine is arranged as the front, and (b) is a side view of the magazine. It is a side view. It is drawing regarding the embodiment which performs rotational movement between the magazine of an arm, a main axis | shaft, and a turning table, Comprising: (a) is a bottom view which shows the movement process between a main axis | shaft and a magazine, (b), (c ) Is a top view showing a moving process between the turning table and the magazine. It is a side view which shows the state which a workpiece changes from arrangement | positioning in a turning table to arrangement | positioning in a main axis | shaft in a process, Comprising: (a) is the state where the workpiece is arrange | positioned at the main axis | shaft and is turned by the turning tool. (B) shows a state in which the workpiece is arranged on the swivel table and processed by another tool. It is a side view which shows the state which the fitting with a holder and a spindle or a turning table is going to be performed. It is sectional drawing of the direction orthogonal to the longitudinal direction in the convex taper-shaped part of the holder by the structure of an Example, and the main shaft or the concave taper-shaped part of a turning table.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Magazine 2 Robot main body 3 Support | pillar 4 Arm 5 Holder 6 Column of machining center 7 Holder storage part in magazine 8 Head 9 Main axis 10 Inclined axis 11 Turning table 12 Base for rotating table 13 Saddle 14 for main axis Tool or workpiece

Claims (5)

  Machining center that supports tools and workpieces that are individually arranged, grips and rotates spindles, tools or workpieces that rotate while gripping tools or workpieces A composite type based on the fact that each of the rotary tables is provided, the arm for conveying the tool or workpiece is movable between the magazine, the spindle and the rotary table, and the tool or workpiece is exchanged. Machining center.   Tool or workpiece exchange between spindle and magazine, tool or workpiece exchange between swivel table and magazine, tool or workpiece exchange between spindle and swivel table are performed by one arm The composite machining center according to claim 1, wherein:   The arm can move linearly in the horizontal and vertical directions, and can rotate around the longitudinal direction as a central axis, rotate horizontally around the support for the arm as a central axis, and revolve by vertical rotation. The composite machining center according to claim 2, wherein:   2. A holder is interposed between a connecting portion of a spindle or a swivel table and a connecting portion of a tool or a workpiece, and the holder is moved by an arm alone or together with a tool or a workpiece. The combined machining center described. The side of the holder that connects to the spindle or swivel table has a convex taper shape, and the side of the main shaft or swivel table that mates with the convex taper shape has a concave taper shape. A plurality of large arcs having a diameter larger than the length from the center position to the position of the longest distance around the outer periphery, with respect to the outer peripheral contour forming a cross-sectional shape orthogonal to the longitudinal direction, 5. The composite machining center according to claim 4, wherein the machining center is formed by a curve smoothly connecting large arcs.

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