JP2013018109A - Machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine tool capable of easily measuring a workpiece in a short period of time, and capable of machining the workpiece with high accuracy.SOLUTION: The machine tool performs the machining of the workpiece W with a tool T by relatively moving the tool T mounted on a main spindle 14 and the workpiece W, horizontally and vertically. The machine tool includes: a saddle 12 that rotatably supports the main spindle 14 and is supported to be movable vertically; a workpiece measuring instrument 30 that contactlessly measures the workpiece W; a transport device 15 that is provided on the side surface of the saddle 12 and transports the workpiece measuring instrument 30 between a measurement position P1 and a standby position P2; and an NC device 20 that, after determining whether the workpiece W has a poor fitting or poor shape based on the measurement results of the workpiece measuring instrument 30, controls the movement of the tool T and the workpiece W according to the determination results.

Description

  The present invention relates to a machine tool that automatically measures a machining position, a shape, an inclination angle, and a distance to a machining position of a workpiece.

  In general, in a machine tool, a workpiece is machined by relatively moving a tool attached to a spindle and a workpiece attached to a table in the horizontal direction and the vertical direction. As a result, if there is a mounting failure on the workpiece or a shape failure on the workpiece, there is a risk that uncut material will be left on the workpiece after machining, or that a large machining load will act on the workpiece and tool being machined. There is.

  Therefore, in the conventional machine tool, prior to machining the workpiece, the coordinates of the designated location in the workpiece are measured, and based on the measurement result, whether or not the workpiece has a mounting defect, and the workpiece It is determined whether or not there is a shape defect. Such a conventional machine tool is disclosed in Patent Document 1, for example.

JP 2004-338065 A

  In the conventional machine tool described above, the coordinates of the designated place on the workpiece are measured using a probe attached to the spindle. However, when measuring using the probe attached to the spindle in this way, not only the work of attaching the probe to the spindle is required for each workpiece to be processed, but also the work of exchanging the spindle between the probe and the tool is required. It becomes necessary. Furthermore, in the measurement method using a probe, when the probe is brought into contact with the workpiece, the approach speed of the probe to the workpiece needs to be kept low in order to prevent the probe from being overloaded. As a result, in the conventional machine tool, it takes more time than necessary to measure the workpiece.

  Accordingly, the present invention solves the above-described problems, and provides a machine tool capable of measuring a workpiece easily and in a short time and machining the workpiece with high accuracy. For the purpose.

A machine tool according to a first invention for solving the above-described problem is
In a machine tool for processing a workpiece with the tool by moving the tool mounted on the spindle and the workpiece relative to each other in the horizontal direction and the vertical direction,
A saddle that rotatably supports the main shaft and is supported so as to be movable at least in the vertical direction;
Measuring means for measuring the processing position, shape, inclination angle and distance to the processing position of the workpiece in a non-contact manner;
A conveying means provided on the saddle, and conveying the measuring means between a measuring position at which the measuring means can measure the workpiece and a retracted position retracted from the measuring position;
After determining whether or not the workpiece has a mounting defect or a shape defect based on the processing position, shape, inclination angle, and distance to the processing position of the workpiece measured by the measuring means And a control means for controlling movement of at least one of the tool and the workpiece in accordance with the determination result.

A machine tool according to a second invention for solving the above-mentioned problems is as follows.
In a machine tool for processing a workpiece with the tool by moving the tool mounted on the spindle and the workpiece relative to each other in the horizontal direction and the vertical direction,
A table to which the work piece is detachably attached and supported so as to be movable in the horizontal direction;
Measuring means for measuring the processing position, shape, inclination angle and distance to the processing position of the workpiece in a non-contact manner;
Provided on the main shaft side facing the moving range of the workpiece, supports the measuring means so as to be movable in the vertical direction, and retracts from the measuring position where the measuring means can measure the workpiece and the measuring position. Transport means for transporting between the retracted position,
After determining whether or not the workpiece has a mounting defect or a shape defect based on the processing position, shape, inclination angle, and distance to the processing position of the workpiece measured by the measuring means And a control means for controlling movement of at least one of the tool and the workpiece in accordance with the determination result.

A machine tool according to a third invention for solving the above-mentioned problem is as follows.
A saddle that rotatably supports the spindle;
A column for supporting the saddle in the vertical direction;
The conveying means is provided in the column.

A machine tool according to a fourth invention for solving the above-mentioned problems is as follows.
A saddle that rotatably supports the spindle;
A column for supporting the saddle in the vertical direction;
The conveying means is provided on a floor surface supporting the column.

A machine tool according to a fifth invention for solving the above-described problem is
The conveying means conveys the measuring means in the axial direction of the main shaft between the measurement position and the retracted position.

A machine tool according to a sixth invention for solving the above-described problem is
The conveying means is provided so as to face in the thickness direction of the workpiece,
The measuring means attached to each of the opposed conveying means measures the processing position, shape, inclination angle, and distance to the processing position of the workpiece from both sides in the thickness direction of the workpiece. It is characterized by that.

  Therefore, according to the machine tool according to the present invention, the measuring device for measuring the workpiece in a non-contact manner is provided with the conveying device for conveying the measuring device between the measuring position and the retracted position. By providing it at a position that does not involve attachment / detachment, the workpiece can be measured easily and in a short time. Further, based on the measurement result by the measuring means, it is determined whether or not the workpiece has a mounting failure and a shape defect, and the movement of the tool and the workpiece is controlled according to the determination result, thereby The workpiece can be processed with high accuracy.

1 is a schematic configuration diagram of a machine tool according to a first embodiment of the present invention. It is the principal part enlarged view of FIG. 1, Comprising: It is the figure which showed the state provided with one conveying apparatus. 1 is a block diagram illustrating a configuration of a machine tool according to a first embodiment of the present invention. It is the principal part enlarged view of FIG. 1, Comprising: It is the figure which showed the state provided with two or more conveying apparatuses. It is a top view when the machine tool which concerns on 1st Example of this invention is made to oppose. It is a schematic block diagram of the machine tool which concerns on 2nd Example of this invention. It is the figure which showed an example of the conveying apparatus provided in the machine tool which concerns on 2nd Example of this invention. It is the figure which showed the other example of the conveying apparatus provided in the machine tool which concerns on 2nd Example of this invention, Comprising: (a) is the figure which showed the state which conveyed the workpiece | work measuring device to the measurement position, (b) ) Is a diagram showing a state in which the workpiece measuring instrument is conveyed to the retracted position.

  Hereinafter, a machine tool according to the present invention will be described in detail with reference to the drawings.

  First, the machine tool according to the first embodiment will be described in detail with reference to FIGS.

  As shown in FIG. 1, a column 11 is erected on the machine tool 1. A saddle 12 is supported on the side surface of the column 11 so as to be movable up and down in the vertical direction (hereinafter referred to as the Y-axis direction).

  A spindle head 13 is supported in the saddle 12 so as to be movable in the horizontal direction (hereinafter referred to as the Z-axis direction). In the spindle head 13, the spindle 14 is arranged in the axial direction (Z-axis direction). And is supported rotatably about its axis. A tool T is detachably mounted on the tip of the main shaft 14. Further, a side surface of the saddle 12 is provided with a transport device (transport means) 15 as will be described in detail later.

  Further, the machine tool 1 is provided with a table bed 16 on the front surface of the column 11, and a table 17 is movable on the upper surface of the table bed 16 in the horizontal direction (hereinafter referred to as the X-axis direction). It is supported. A work (workpiece) W is detachably attached to the upper surface of the table 17.

  Therefore, by driving the saddle 12, the tool T and the conveying device 15 can be moved in the Y-axis direction. Further, by driving the spindle head 13, the spindle 14 and the tool T can be moved in the axial direction as the spindle head 13 moves in the Z-axis direction. Furthermore, by driving the main shaft 14, the tool T can be moved in the axial direction as the main shaft 14 moves in the Z-axis direction. On the other hand, by driving the table 17, the workpiece W can be moved in the X-axis direction together with the table 17.

  As shown in FIGS. 1 to 3, the transport device 15 includes a device body 15a, a transport rod 15b, a motor 15c, and an amplifier 15d. The apparatus main body 15a is attached to the side surface of the saddle 12, and the transport rod 15b can slide in the Z-axis direction within the apparatus main body 15a, that is, can be extended so as to approach and separate from the workpiece W. It is supported by. Therefore, the conveyance rod 15b can be moved in the Z-axis direction by driving the motor 15c.

  A workpiece measuring device (measuring means) 30 is attached to the tip of the transport rod 15b. Prior to machining the workpiece W, the workpiece measuring device 30 measures the machining position (coordinates of the machining site), the shape (dimensions of the machining site), the inclination angle (the machining allowance), and the workpiece measurement. This is a non-contact type measuring device that measures the distance from the tool 30 to the processing position in a non-contact manner. Here, in the machine tool 1, for example, a CCD camera 31 or a laser length measuring device 32 is employed as the workpiece measuring device 30.

  FIG. 1 shows a state in which one work measuring instrument 30 is attached to the tip of the transport rod 15b. In FIGS. 2 and 3, two work measuring instruments 30 are attached to the tip of the transport rod 15b. Shows the state.

  Specifically, when the workpiece measuring device 30 is a CCD camera 31, as shown in FIG. 3, the image data is acquired by imaging a predetermined imaging region on the workpiece W by the CCD camera 31. The Then, the image data is input to the analysis device 19 via the controller 33. Further, the analysis device 19 recognizes the input image data as the shape of the workpiece W, and then outputs it to an NC device (control means) 20 described later.

  Further, when the workpiece measuring device 30 is a laser length measuring device 32, a predetermined irradiation point on the workpiece W is irradiated with the laser light output from the laser length measuring device 32 as shown in FIG. Thus, the distance in the Z-axis direction from the laser length measuring device 32 to the irradiation point is measured. The measurement distance is input to the analysis device 19 via the controller 33. Further, the analysis device 19 outputs the input measurement distance as it is as a distance to the machining position to the NC device 20 described later, and also recognizes it as the shape of the workpiece W, and then outputs it to the NC device 20.

  Therefore, by driving the saddle 12 and the table 17, the transport device 15 can be moved relative to the workpiece W in the X-axis direction and the Y-axis direction. That is, the conveyance device 15 can be positioned at a position facing a predetermined imaging region and a predetermined irradiation point on the workpiece W. Further, the workpiece measuring device 30 (the CCD camera 31 and the CCD camera 31) is mounted in a state where the tool T is mounted on the main shaft 14 by driving the positioned conveying device 15 and sliding the conveying rod 15b in the Z-axis direction. The laser length measuring device 32) is transported between a measurement position (capturing position and irradiation position) P1 at which the workpiece W can be measured (capturing and irradiating) and a retracted position P2 retracted from the measuring position P1. be able to.

  Note that the measurement position P1 is set to a position where the tool T is extended (a position closer to the workpiece W) than the tip position of the tool T mounted on the spindle 14 in the Z-axis direction. Further, the retracted position P2 is set to a retracted position (a position away from the workpiece W) rather than a tip position of the tool T mounted on the main shaft 14 in the Z-axis direction.

  Here, as shown in FIG. 1, the machine tool 1 is provided with an NC device (control means) 20 that controls the machine tool 1 in an integrated manner. For example, a saddle 12, a spindle head 13, a spindle 14, a transport device 15, a table 17, an analysis device 19, a work measuring instrument 30, and the like are connected to the NC device 20.

  That is, in the NC device 20, the tool T mounted on the spindle 14 based on the machining conditions (the rotational speed of the spindle 14, the feed speed, the cutting amount, etc.) corresponding to the shape of the workpiece W and the machining allowance before machining. The movement in the Y-axis direction and the Z-axis direction and the movement in the X-axis direction of the workpiece W attached to the table 17 are controlled. Further, in the NC device 20, the machining operation by the transfer device 15 and the workpiece measuring instrument 30 is controlled before machining by the tool T, and the machining position, shape, inclination angle and workpiece machining of the workpiece W are machined from the workpiece measuring instrument 30. The distance to the position is measured. Then, based on these measurement results, it is determined whether or not the workpiece W has a mounting defect and a shape defect, and further, the movement of the tool T and the workpiece W is controlled according to the determination result, thereby It is intended to make the machining allowance in W uniform.

  The analysis device 19, the NC device 20, the workpiece measuring device 30, the CCD camera 31, the laser length measuring device 32, etc. constitute a measuring means.

  Next, the measurement and processing of the workpiece W by the machine tool 1 will be specifically described. In the following description, the case where the CCD camera 31 and the laser length measuring device 32 are attached to the tip of the transport rod 15b is described as a representative.

  First, the workpiece W is attached to the table 17. A plurality of pilot holes Wc are processed in advance on the side surfaces Wa and Wb of the workpiece W.

  Next, after positioning the conveying device 15 so as to face the prepared hole Wc of the workpiece W, the conveying rod 15b is extended. As a result, the CCD camera 31 and the laser length measuring device 32 are conveyed from the retracted position P2 to the measuring position P1.

  When the CCD camera 31 captures the pilot hole Wc of the workpiece W, the captured image of the pilot hole Wc is converted into image data and input to the NC apparatus 20 via the analysis device 19. At this time, the analysis device 19 calculates the center and inner diameter of the pilot hole Wc based on the input image data.

  Further, when the distance to a plurality of irradiation points on the side surface Wa of the workpiece W is measured by the laser length measuring device 32, the measured plurality of measurement distances are input to the NC device 20 via the analysis device 19. The At this time, the analyzer 19 calculates the inclination angle of the side surface Wa and the distance to the end surface of the lower hole Wc based on the plurality of input measurement distances. As described above, when the laser length measuring device 32 is used, the distance measurement by the laser length measuring device 32 is performed at least twice.

  Next, in the NC device 20, based on the input center and inner diameter of the lower hole Wc, the inclination angle of the side surface Wa, the distance to the end surface of the lower hole Wc, whether or not the work W has a mounting failure, and Then, it is determined whether or not the workpiece W has a shape defect.

  At this time, when it is determined that the workpiece W has no mounting failure and it is determined that the workpiece W has no shape defect, the tool T is moved in the Y-axis direction and the Z-axis based on preset machining conditions. By moving the workpiece W in the X-axis direction while moving in the direction, predetermined machining is performed on the prepared hole Wc of the workpiece W and the end surface of the prepared hole Wc.

  On the other hand, when it is determined that the work W has a poor mounting, or when it is determined that the work W has a poor shape, the center and inner diameter of the pilot hole Wc, the inclination angle of the side surface Wa, and the lower hole Wc Based on the distance to the end face, the movement of the tool T in the Y-axis direction and the Z-axis direction and the movement of the workpiece W in the X-axis direction are corrected. As a result, even if the workpiece W is attached to the table 17 while being inclined or the shape of the workpiece W is defective, the attachment position of the workpiece W is corrected, and the pilot hole Wc of the workpiece W is corrected. And a predetermined process is performed with respect to the pilot hole Wc.

  And even if it correct | amends the movement of the tool T and the workpiece | work W, when it determines with the workpiece W remaining uncut, processing by the machine tool 1 will be stopped, and in order to notify the attachment defect or shape defect of the workpiece | work W The warning alarm is activated.

  In the present embodiment described above, one conveying device 15 is provided on the side surface of the saddle 12, but a plurality of conveying devices 15 may be provided.

  For example, as shown in FIG. 4, when two transport devices 15 are provided on the side surface of the saddle 12 in parallel in the vertical direction, the work measuring instrument 30 in one transport device 15 is a CCD camera 31, and the other The workpiece measuring device 30 in the transport device 15 is a laser length measuring device 32. Thereby, since an installation position can be designated for every conveyance apparatus 15, the imaging | photography site | part of the CCD camera 31 and the irradiation point of the laser length measuring device 32 can be set to a separate position.

  Moreover, in this embodiment mentioned above, although the machine tool 1 provided with the one column 11 is employ | adopted as a machine tool which processes the workpiece | work W, as shown in FIG. 17 may be a machine tool arranged to face the workpiece W in the thickness direction.

  That is, by disposing the two columns 11 so as to sandwich the workpiece W in the thickness direction, the workpiece measuring instrument 30 attached to the conveying device 15 on the side surface Wa side causes the pilot hole Wc to open to the side surface Wa. The center and inner diameter, the inclination angle of the side surface Wa, and the distance to the end face of the pilot hole Wc that opens to the side surface Wa are measured, and the workpiece measuring device 30 attached to the conveying device 15 on the side surface Wb opens the side surface Wb. The center and inner diameter of the lower hole Wc, the inclination angle of the side surface Wb, and the distance to the end surface of the lower hole Wc opening in the side surface Wa are measured. As a result, the workpiece measuring instrument 30 attached to each of the opposed conveying devices 15 allows the center and inner diameter of the lower hole Wc, the inclination angles of the side surfaces Wa and Wb, and the end surface of the lower hole Wc from both sides in the thickness direction of the workpiece W. Can be measured simultaneously, so that the workpiece W can be measured with high accuracy in a short time.

  Furthermore, although the column 11 is fixed in the above-described embodiment, it may be moved in the X-axis direction and the Z-axis direction.

  Therefore, according to the machine tool 1 according to the present invention, the center and inner diameter of the lower hole Wc, the side surfaces Wa and Wb are provided by providing the transport device 15 for transporting the non-contact type work measuring instrument 30 on the side surface of the saddle 12. And the distance to the end face of the lower hole Wc can be measured easily and in a short time. Then, based on the above four measurement results by the workpiece measuring instrument 30, it is determined whether or not the workpiece W has a mounting defect and a shape defect, and the movement of the tool T and the workpiece W is controlled according to the determination result. Thus, the workpiece W can be processed with high accuracy.

  In addition, since the workpiece measuring device 30 can be conveyed between the measurement position P1 and the retracted position P2 by the conveyance device 15, the measurement position P1 can be as close as possible to the workpiece W. 30 measurement accuracy can be improved. On the other hand, since the retracted position P2 can be as far as possible from the workpiece W, it is possible to prevent the workpiece measuring instrument 30 from being damaged or broken down by chips or cutting oil scattered by machining.

  Further, by using a plurality of workpiece measuring instruments 30, the center and inner diameter of the lower hole Wc, the inclination angles of the side surfaces Wa and Wb, and the distance to the end surface of the lower hole Wc from both the side surface Wa side and the side surface Wb side of the workpiece W are simultaneously determined. By measuring, the measurement time can be further shortened.

  Next, the machine tool according to the second embodiment will be described in detail with reference to FIGS. In addition, about the member same as 1st Example, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 6, the machine tool 2 is provided with a column bed 41, and a column 42 is supported on the upper surface of the column bed 41 so as to be movable in the X-axis direction. Further, the saddle 12 is supported on the inner surface of the column 42 so as to be movable up and down in the Y-axis direction.

  Here, in the machine tool 2, the conveying devices (conveying means) 15 and 45 shown in FIGS. 7 and 8A and 8B can be attached to the attachment positions H1 and H2. The attachment position H1 indicates the position when the conveying devices 15 and 45 are attached to the side surface of the column 42, and the attachment position H2 indicates that the conveying devices 15 and 45 are attached to one end side of the column bed 41 on the floor surface F. Indicates the position.

  Therefore, by driving the column 42, the conveying devices 15 and 45 attached to the tool T and the attachment position H1 can be moved in the X-axis direction.

  Further, as shown in FIG. 7, the transport device 15 includes a support member 15e in addition to the device main body 15a, the transport rod 15b, the motor 15c, and the amplifier 15d described above. The support member 15e is attached to the side surface of the column 42 when the transport device 15 is attached to the attachment position H1, and is attached to the floor surface F when the transport device 15 is attached to the attachment position H2. The apparatus main body 15a is supported to be movable up and down in the Y-axis direction.

  Accordingly, by driving the transport device 15, the workpiece measuring instrument 30 attached to the tip of the transport rod 15b can be moved in the Y-axis direction, and the measurement position P1 and the retreat position P2 in the Z-axis direction Can be transported between.

  On the other hand, as shown in FIGS. 8A and 8B, the transfer device 45 includes a device main body 45a, a first transfer arm 45b, a second transfer arm 45c, a connecting shaft 45d, a motor 15c, and an amplifier 15d. Yes. The main body 45a is attached to the side surface of the column 42 when the transport device 45 is attached to the attachment position H1, and the bottom surface is attached to the floor surface F when the transport device 45 is attached to the attachment position H2. It is supposed to be

  Further, the base end of the first transfer arm 45b is rotatably supported on the apparatus main body 45a via a connecting shaft 45d, and the tip of the first transfer arm 45b is connected to the tip of the first transfer arm 45b via the connecting shaft 45d. Thus, the base end of the second transfer arm 45c is rotatably supported. Furthermore, a workpiece measuring instrument 30 is attached to the tip of the second transfer arm 45c.

  Accordingly, the work measuring instrument attached to the tip of the second transfer arm 45c is driven by driving the motor 15c and rotating the first transfer arm 45b and the second transfer arm 45c about the two connecting shafts 45d. 30 can be moved in the Y-axis direction and can be transported between the measurement position P1 and the retracted position P2 in the Z-axis direction.

  As shown in FIG. 6, the machine tool 2 is provided with an NC device 20 that controls the machine tool 2 in an integrated manner. For example, a saddle 12, a spindle head 13, a spindle 14, conveying devices 15 and 45, a table 17, an analysis device 19, a workpiece measuring instrument 30, a column 42, and the like are connected to the NC device 20.

  That is, in the NC device 20, before the machining by the tool T, the measurement operation by the transfer devices 15 and 45 and the workpiece measuring device 30 is controlled, and the machining position, shape, inclination angle, and workpiece measuring device 30 of the workpiece W are controlled. The distance from the machining position to the machining position is measured. Then, based on these measurement results, it is determined whether or not the workpiece W has a mounting defect and a shape defect, and further, the movement of the tool T and the workpiece W is controlled according to the determination result. In order to make uniform the machining allowance.

  Therefore, when the transport device 15 is attached to the attachment position H1, the transport device 15, the table 17, and the column 42 are driven. On the other hand, when the transport device 15 is attached to the attachment position H2, the transport device 15 and the table 17 are driven. Is moved relative to the workpiece W in the X-axis direction and the Y-axis direction to position the conveyance device 15 at a position facing a predetermined imaging region and a predetermined irradiation point on the workpiece W. Can be made. Furthermore, the workpiece measuring device 30 is moved to the measurement position P1 in a state where the tool T is mounted on the spindle 14 by driving the positioned transfer device 15 and sliding the transfer rod 15b in the Z-axis direction. And the retracted position P2.

  When the transport device 45 is attached to the attachment position H1, the transport device 45, the table 17, and the column 42 are driven. On the other hand, when the transport device 45 is attached to the attachment position H2, the transport device 45 and the table 17 are driven. Is moved relative to the workpiece W in the X-axis direction and the Y-axis direction, and positioned at a position facing a predetermined imaging region and a predetermined irradiation point on the workpiece W. Can be made. Further, by driving the transporting device 45 thus positioned and rotating the first transport arm 45b and the second transport arm 45c in the Z-axis direction, the workpiece T is mounted on the main shaft 14 in a state where the tool T is mounted on the main shaft 14. The measuring device 30 can be transported between the measurement position P1 and the retracted position P2.

  Therefore, according to the machine tool 2 according to the present invention, the column 42 side facing the movement range in the X-axis direction of the workpiece W, that is, the side surface of the column 42 and the floor surface F supporting the column bed 41 is non-contact type. By providing the transport devices 15 and 45 for transporting the workpiece measuring instrument 30, the center and inner diameter of the lower hole Wc, the inclination angles of the side surfaces Wa and Wb, and the distance to the end surface of the lower hole Wc can be easily and short. It can be measured in time. Then, based on the above four measurement results by the workpiece measuring instrument 30, it is determined whether or not the workpiece W has a mounting defect and a shape defect, and the movement of the tool T and the workpiece W is controlled according to the determination result. Thus, the workpiece W can be processed with high accuracy.

  In the above-described embodiment, the machine tool 2 including one column 42 is used as a machine tool for processing the workpiece W. However, the workpiece W having the two columns 42 attached to the table 17 is used. It may be a machine tool that is arranged to face in the thickness direction.

  In the above-described two embodiments, when the two workpiece measuring devices 30 are attached to one transporting device 15 and 45, the CCD camera 31 and the laser length measuring device 32 are used as the two workpiece measuring devices 30, respectively. However, only one of the CCD camera 31 and the laser length measuring device 32 may be used.

  Further, in the above-described two embodiments, the conveying devices 15 and 45 are provided on the machine tool 1 (for example, a horizontal boring machine) in which the main shaft 14 rotates around the horizontal axis. You may make it provide the conveying apparatuses 15 and 45 in the machine tool (for example, portal-type machining center etc.) rotated around a vertical axis.

  The present invention can be applied to a machine tool that prevents an uncut residue from being generated on a workpiece after machining or a large machining load acting on a workpiece and a tool being machined.

DESCRIPTION OF SYMBOLS 1, 2 Machine tool 11 Column 12 Saddle 13 Spindle head 14 Spindle 15 Transfer device 15a Device main body 15b Transfer rod 15c Motor 15d Amplifier 15e Support member 16 Table bed 17 Table 19 Analysis device 20 NC device 30 Work measuring device 31 CCD camera 32 Laser Length measuring device 33 Controller 41 Column bed 42 Column 45 Conveying device 45a Device main body 45b First conveying arm 45c Second conveying arm 45d Connecting shaft P1 Measuring position P2 Retraction position H1 Mounting position H2 Mounting position T Tool W Work F Floor

Claims (6)

In a machine tool for processing a workpiece with the tool by moving the tool mounted on the spindle and the workpiece relative to each other in the horizontal direction and the vertical direction,
A saddle that rotatably supports the main shaft and is supported so as to be movable at least in the vertical direction;
Measuring means for measuring the processing position, shape, inclination angle and distance to the processing position of the workpiece in a non-contact manner;
A conveying means provided on the saddle, and conveying the measuring means between a measuring position at which the measuring means can measure the workpiece and a retracted position retracted from the measuring position;
After determining whether or not the workpiece has a mounting defect or a shape defect based on the processing position, shape, inclination angle, and distance to the processing position of the workpiece measured by the measuring means A machine tool comprising: control means for controlling movement of at least one of the tool and the workpiece according to the determination result. In a machine tool for processing a workpiece with the tool by moving the tool mounted on the spindle and the workpiece relative to each other in the horizontal direction and the vertical direction,
A table to which the work piece is detachably attached and supported so as to be movable in the horizontal direction;
Measuring means for measuring the processing position, shape, inclination angle and distance to the processing position of the workpiece in a non-contact manner;
Provided on the main shaft side facing the moving range of the workpiece, supports the measuring means so as to be movable in the vertical direction, and retracts from the measuring position where the measuring means can measure the workpiece and the measuring position. Transport means for transporting between the retracted position,
After determining whether or not the workpiece has a mounting defect or a shape defect based on the processing position, shape, inclination angle, and distance to the processing position of the workpiece measured by the measuring means A machine tool comprising: control means for controlling movement of at least one of the tool and the workpiece according to the determination result. The machine tool according to claim 2,
A saddle that rotatably supports the spindle;
A column for supporting the saddle in the vertical direction;
A machine tool, wherein the conveying means is provided in the column. The machine tool according to claim 2,
A saddle that rotatably supports the spindle;
A column for supporting the saddle in the vertical direction;
A machine tool, wherein the conveying means is provided on a floor surface supporting the column. The machine tool according to any one of claims 1 to 4,
The machine tool transports the measuring means in the axial direction of the spindle between the measurement position and the retracted position. The machine tool according to any one of claims 1 to 5,
The conveying means is provided so as to face in the thickness direction of the workpiece,
The measuring means attached to each of the opposed conveying means measures the processing position, shape, inclination angle, and distance to the processing position of the workpiece from both sides in the thickness direction of the workpiece. A machine tool characterized by that.

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