JP2005118892A - Machine tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sufficiently secure a space for the maintenance of a device by moving a control panel provided to the rear part of a base in the forward/backward directions or in the vertical direction of the device. <P>SOLUTION: A main spindle 20 and a motor 24 for the main spindle are mounted to the front wall 11 of the base 10. An X-axis slide 30 and a motor 45 for the X-axis slide are mounted on the upper face of the base 10. A Z-axis slide 50 and a motor 62 for the Z-axis slide are mounted to the front wall of the X-axis slide 30. A turret base 66 and a motor 68 for the turret base are mounted to the lower face and the upper face of the Z-axis slide 50. The control panel 75 for controlling each motor 24, 45, 62, and 68 are erected to the rear part of the base 10. The control panel 75 is mounted to the base 10 via a control panel moving mechanism 80. The control panel moving mechanism 80 moves the control panel 75 during the maintenance to a maintenance work position located at a position apart in the front and rear directions from a normal use position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a machine tool that cuts a relatively small workpiece with a main shaft provided vertically.

  Conventionally, as a machine tool for cutting a relatively small workpiece, a horizontal lathe having a main shaft provided horizontally is known. In this horizontal lathe, the main shaft is disposed on the base so as to extend in the left-right direction, and is rotatably fixed. A workpiece is attached to the tip of the main shaft. And the tool mounting base to which the tool which cuts a workpiece | work is attached so that attachment or detachment is possible is attached on the base so that sliding is possible in the left-right and front-back direction. The horizontal lathe constructed in this way has a long and wide apparatus in the left-right direction because the main shaft extends in the left-right direction and the tool mounting base moves in the left-right direction.

  On the other hand, when machining one workpiece in multiple processes, multiple machine tools corresponding to each process may be used. From the viewpoint of work efficiency, these machine tools are arranged in the width direction (left-right direction). They are installed side by side in series. When the above-described horizontal lathe is used as this machine tool, both working positions of the machine tools adjacent to each other (the worker's standing position) are separated from each other, so that the movement distance to the working position of the adjacent machine tool is As the length of the work increases, the number of man-hours required for the worker increases, resulting in an increase in work machining costs.

  Therefore, in order to shorten the distance between the work positions of adjacent machine tools and reduce man-hours to suppress the increase in work machining costs, the movement distance between adjacent machine tools can be reduced as much as possible by reducing the width of the device itself. A machine tool, such as a vertical lathe, which is kept small has been proposed (for example, Patent Document 1).

  As shown in FIGS. 1 and 2 of Patent Document 1, this vertical lathe is provided on a bed 1 in a vertical shape, and holds a work spindle 3 for gripping a work that can be rotated and indexed by a turning angle C axis. A column 6 erected on a saddle 4 capable of horizontal X-axis movement positioning, a cross slide 7 capable of vertical Z-axis movement positioning on the column 6, and a saddle capable of horizontal Y-axis movement positioning on the cross slide 7 The spindle head 11 provided at 9, the spindle quill 13 capable of indexing and positioning the B-axis between the vertical and horizontal directions of the spindle head 11, and the spindle quill 13 can be rotated and indexed by the rotation angle M-axis. And a tool spindle 14 for holding a simple tool T. The workpiece spindle 3, saddle 4, cross slide 7, saddle 9, spindle quill 13 and tool spindle 14 are driven by servo motors 5, 2, 8, 12, 16 and 17, respectively.

  In the machine tool of Patent Document 1, since the work spindle 3 is provided vertically and the column 6 is provided so as to be slidable in the front-rear direction of the bed 1, work of adjacent machine tools can be performed by reducing the width of the apparatus itself. Although the distance between the positions could be shortened as compared with the case of the conventional horizontal lathe, the servo motor 5 was attached to the side surface of the bed 1 and a part of the servo motor 12 protruded from the side surface of the bed 1. Since it is installed, the machine tool must be installed at a minimum distance considering the space for maintenance such as replacement work of these servo motors. Therefore, since the distance between the work positions of adjacent machine tools cannot be sufficiently shortened, there has been a problem that the man-hour reduction and the increase in the work machining cost are not sufficiently suppressed.

  Therefore, in order to solve this problem, the inventors of the present application detachably attach the spindle motor to the front wall of the base, attach the X-axis slide motor to the rear part of the base detachably, A machine tool has been devised in which a slide motor is detachably attached to the back of the X-axis slide and a control panel is erected on the back of the base.

In this machine tool, when maintaining the motor and the control panel, an operator can work from the front or the rear without working from the side of the apparatus, but the control panel stands at the rear part of the base. Therefore, there is a possibility that maintenance of parts attached to the rear part of the apparatus cannot be easily performed because the control panel becomes an obstacle. As a solution to this problem, it has been proposed that the control panel is movably assembled (for example, Patent Document 2). That is, the control panel (operation panel 12) is assembled so as to rotate horizontally around the rotating shaft 20 and to move in the extending direction of the sliding guide 18.
Japanese Patent Laid-Open No. 2001-287102 (pages 2, 3 and 1, 2) Japanese Patent Laid-Open No. 10-15706 (pages 3, 4 and 1, 7 and 8)

  When the moving mechanism of the control panel of Patent Document 2 is adopted for the above-mentioned vertical lathe, the control panel (operation panel 12) is opened horizontally and a space for maintenance is formed at the rear of the apparatus. The control panel does not open completely because it interferes with the equipment installed next to it even if it is moved. The control panel remains within the width of the equipment, so the maintenance space formed is narrower than the equipment width. It becomes. That is, there is a problem in that a sufficient maintenance space cannot be secured even if the control panel is moved.

  The present invention has been made to solve the above-described problems, and a control panel provided at the rear part of the base is moved in the front-rear direction or the vertical direction of the device, so that a sufficient space for maintenance of the device is ensured. An object of the present invention is to provide a machine tool that can be used.

  In order to solve the above-mentioned problem, the structural feature of the invention according to claim 1 is that the Z-axis perpendicular to the upper surface of the base is formed on the front wall of the base formed in a rectangular parallelepiped shape as the rotation axis. A spindle that is supported rotatably and the workpiece is gripped on the upper surface, a spindle motor that is detachably attached to the front wall of the base and rotates the spindle, and is slidably attached to the upper surface of the base in the front-rear direction. X-axis slide, X-axis slide motor removably attached to the rear of the base and reciprocating the X-axis slide, and slidably attached to the front wall of the X-axis slide in parallel with the Z-axis direction Z-axis slide, Z-axis slide motor that removably attaches to the back of the X-axis slide, and removably moves the Z-axis slide; Crafted A machine tool comprising: a mounting base; a control panel installed on the rear of the base for controlling each motor; and a control panel moving mechanism for moving the control panel in the front-rear direction. This is because the control panel is positioned and fixed at the normal use position during machining operation of the machine tool, and the control panel is moved to the maintenance work position that is away from the normal use position in the front-rear or vertical direction during maintenance of the machine tool. is there.

  The structural feature of the invention according to claim 2 is that, in claim 1, the control panel moving mechanism is composed of an extendable rail extending and contracting along the front-rear direction.

  The structural feature of the invention according to claim 3 is that, in claim 1, the control panel moving mechanism is composed of a hinge that can be opened and closed in the front-rear direction.

  In the invention according to claim 1 configured as described above, the control panel is positioned and fixed at the normal use position during the machining operation of the machine tool, and the control panel is moved back and forth from the normal use position during the maintenance of the machine tool. Alternatively, it is moved by the control panel moving mechanism to a maintenance work position that is separated in the vertical direction. At this time, the entire control panel is moved, and a space having the same width as the width of the apparatus is formed between the control panel and the base, and this space can be used as a maintenance space. Therefore, a sufficient space for maintenance of the apparatus can be secured.

  In the invention according to claim 2 configured as described above, the control panel moving mechanism is composed of an extendable rail extending and contracting along the front-rear direction, so that the control panel can be moved with a simple and highly rigid configuration. Can do.

  In the invention according to claim 3 configured as described above, since the control panel moving mechanism is configured by a hinge that can be opened and closed in the front-rear direction, the control panel can be moved with a simpler configuration.

  Hereinafter, an embodiment of a machine tool according to the present invention will be described with reference to the drawings. FIG. 1 is an overview perspective view schematically showing an external appearance of a machine tool when viewed from the left oblique front, FIG. 2 is a front view, and FIG. 3 is a base, an X-axis slide, an X-axis slide drive unit, and chips. 4 is a top view showing the carry-out conveyor, and FIG. 4 is a partial cross-sectional view showing a portion above the base of the machine tool along line 4-4 shown in FIG.

  As shown in FIGS. 1 and 2, the machine tool includes a base 10 formed in a rectangular parallelepiped shape. A concave portion 11a having a U-shaped cross section extending in the vertical direction (Z-axis direction: a direction perpendicular to the upper surface of the base 10) is provided at the center portion of the front wall 11 of the base 10 in the left-right direction (width direction). Is formed. A main shaft 20 is disposed in the recess 11a so as to extend in the vertical direction, and a support member 21 for rotatably supporting the main shaft 20 around a rotation axis parallel to the Z axis is provided on both sides of the recess 11a. Bolts are fixed to the seats 12 and 12. As shown mainly in FIG. 2, a chuck C is attached to the upper surface of the main shaft 20, and the workpiece W is gripped by the chuck C. Upper and lower pulleys 22 and 23 are coaxially and integrally fixed to the main shaft 20 below the main shaft 20.

  On the left side of the front wall 11 of the base 10, that is, on the left side of the main shaft 20, a main shaft motor 24 is disposed at a position that does not protrude from the front wall 11 and is detachably bolted and fixed. A timing belt 26 is stretched between the pulley 25 attached to the output shaft 24 a of the main shaft motor 24 and the lower pulley 23 of the main shaft 20. Thereby, the main shaft 20 is rotated by driving the main shaft motor 24. An encoder 27 is attached to the right part of the front wall 11 of the base 10, that is, the right side of the main shaft 20, and between the pulley 28 attached to the rotation shaft (not shown) of the encoder 27 and the upper pulley 22 of the main shaft 20. The timing belt 29 is stretched. As a result, the rotation shaft of the encoder 27 rotates together with the rotation of the main shaft 20, so that the encoder 27 detects the rotation angle (phase) of the main shaft 20.

  At the front part of the base 10 (specifically immediately after the front wall 11), as shown in FIG. 1, there is a recess for storing the chips of the workpiece W falling from the upper surface of the main shaft 20, that is, a chip storage part 13. Is provided. This chip storage part 13 is formed so that it may be located under the cutting position P (refer FIG. 3) where the workpiece | work W hold | gripped by the main axis | shaft 20 is cut with the tool T. FIG.

  As shown in FIG. 1, a chip receiving member 14 is provided at the upper end of the front wall 11 of the base 10. The chip receiving member 14 covers the front and left and right sides of the main shaft 20 from below, and the front inclined surface 14a and the left and right inclined surfaces 14b and 14c that are inclined downward toward the main shaft 20 are integrally connected. It is a thing. The upper ends of these inclined surfaces 14 a, 14 b, and 14 c are in contact with the inner wall surface of the exterior cover 17 described later, and the lower ends are in contact with the outer peripheral wall of the support member 21 of the main shaft 20 or the inner wall surface front portion of the chip storing portion 13. Thereby, the chips of the workpiece W scattered on the left and right and the front of the main shaft 20 are received and dropped to the chip storage unit 13.

  As shown mainly in FIG. 1, an X-axis slide 30 is attached to the upper surface of the base 10 so as to be slidable in the front-rear direction (X-axis direction). The X-axis slide 30 has left and right side walls 31 and 32 that are formed in an L shape, are symmetric, an intermediate standing wall 33 that is integrally connected to both side walls 31 and 32, and left and right ends of both side walls. A rear lateral wall 34 that is integrally connected and has a front end integrally connected to the intermediate standing wall 33 is provided. The intermediate standing wall 33 has the same height as the left and right side walls 31 and 32, and the left and right ends of the intermediate standing wall 33 are connected along the rear end edges of the upper portions 31 a and 32 a of the left and right side walls 31 and 32. As a result, the X-axis slide 30 is provided with a concave portion 30 a that is opened forward and formed by the left and right side walls 31, 32 and the intermediate standing wall 33. The top wall 35 is integrally connected to the upper end edges of the left and right side walls 31 and 32 and the intermediate standing wall 33. The front and rear length of the top wall 35 is shorter than the front and rear lengths of the upper portions 31a and 32a of the left and right side walls 31 and 32. Is set.

  As shown mainly in FIG. 3, left and right guides 36 and 37 extending in the front-rear direction are fixed to the lower end surfaces of the left and right side walls 31 and 32, respectively. The left guide 36 is slidably supported by a pair of sliding engagement portions 36 a and 36 a fixed to the left side of the upper surface of the base 10. The right guide 37 is slidably supported by a pair of sliding engagement portions 37 a and 37 a fixed to the right side of the upper surface of the base 10. Thereby, the X-axis slide 30 is attached to the upper surface of the base 10 so as to be slidable in the front-rear direction.

  As shown in FIG. 3, an X-axis slide drive unit 40 is bolted and fixed at the center in the left-right direction at the rear of the upper surface of the base 10. The X-axis slide drive unit 40 includes a frame body 41 formed in a square shape. A feed screw 44 extending in the front-rear direction is rotatably supported on the front and rear walls 42, 43 of the frame 41 via bearings 42a, 43a. An attachment plate 46 to which an X-axis slide motor 45 is detachably fixed is detachably fixed to the attachment portion 43 b of the rear wall 43. Between the front and rear walls 42, 43, a nut 47 attached to a nut attachment portion 34 a fixed to the lower surface of the rear lateral wall 34 of the X-axis slide 30 is screw-engaged with the feed screw 44. The rear portion of the feed screw 44 passes through the rear wall 43, and the rear end of the feed screw 44 is connected to the output shaft 45 a of the X-axis slide motor 45 by a coupling 48 so as to rotate integrally. Thereby, when the feed screw 44 is rotated by the X-axis slide motor 45, the X-axis slide 30 reciprocates in the front-rear direction.

  As shown mainly in FIGS. 2 and 4, a Z-axis slide 50 is attached to the front surface of the X-axis slide 30 so as to be slidable in parallel in the vertical direction (Z-axis direction). The Z-axis slide 50 includes a main body 51 formed in a box shape. Left and right flanges 53 and 54 are formed on the left and right end edges of the front wall 52 of the main body 51. The pair of sliding engagement portions 53 a and 53 a fixed to the back surface of the left flange 53 slides on the left guide 55 extending along the Z-axis direction fixed to the front end surface of the left side wall 31 of the X-axis slide 30. It is movably engaged. The pair of sliding engagement portions 54 a and 54 a fixed to the back surface of the right flange 54 slides on the right guide 56 extending along the Z-axis direction fixed to the front end surface of the right side wall 32 of the X-axis slide 30. It is movably engaged. Thus, the Z-axis slide 50 is accommodated in the recess 30a of the X-axis slide 30, and the pair of left and right opening ends of the recess 30a, that is, the front end surfaces of the left and right side walls 31 and 32 of the X-axis slide 30 are It is slidably attached in parallel to.

  A nut 58 attached to a nut attachment portion 57 a fixed to the rear wall 57 of the main body 51 is screw-engaged with a feed screw 59 that is rotatably supported on the X-axis slide 30. The lower end of the feed screw 59 is rotatably supported via a bearing 33a1 on a support portion 33a projecting from the front surface of the intermediate standing wall 33 of the X-axis slide 30, and the upper portion of the feed screw 59 is the top wall of the X-axis slide 30. 35 is rotatably supported via a bearing 35a. An upper portion of the feed screw 59 penetrates the top wall 35, and a pulley 61 is fixed to an upper end of the feed screw 59 so as to rotate integrally with the feed screw 59. A mounting bracket 63 to which a Z-axis slide motor 62 is detachably fixed is detachably fixed to the upper part of the back surface of the intermediate standing wall 33 of the X-axis slide 30. A timing belt 65 is stretched between a pulley 64 attached to the output shaft 62 a of the Z-axis slide motor 62 and a pulley 61 fixed to the feed screw 59. Thus, when the feed screw 59 is rotated by the Z-axis slide motor 62, the Z-axis slide 50 reciprocates in the vertical direction.

  On the lower surface of the main body 51 of the Z-axis slide 50, a turret base (turret type tool mounting base) 66, which is a tool mounting base on which a tool T for cutting the workpiece W is detachably mounted, is assembled so as to be horizontally rotatable. ing. The turret base 66 is disposed immediately below the Z-axis slide 50. A pulley 67 is rotatably supported on the front surface of the main body 51 of the Z-axis slide 50 to transmit a rotational force to the rotation shaft 66a of the turret base 66. A mounting bracket 69 to which a turret base motor 68 is detachably fixed is detachably fixed to the front surface of the main body 51 of the Z-axis slide 50. A timing belt 72 is stretched between a pulley 71 attached to the output shaft 68 a of the turret base motor 68 and a pulley 67 that transmits a rotational force to the rotary shaft 66 a of the turret base 66. Thus, when the pulley 67 is rotated by the turret base motor 68, the turret base 66 rotates and is positioned and fixed at a predetermined position.

  In addition, a through hole 15 extending rearward from the chip storage portion 13 is formed in the base 10. In this through-hole 15, a chip discharge conveyor 16 having one end positioned in the chip storage portion 13 and the other end protruding from the back surface of the base 10 is arranged extending in the front-rear direction. The conveyor 16 carries the chips collected in the chip storage unit 13 to the outside.

  Further, as shown in FIG. 1, an exterior cover 17 that covers the main shaft 20 and the X-axis slide 30 from above is attached on the base 10. On the front surface of the exterior cover 17, an entrance / exit 17 a for the work W provided with a slide opening / closing door is formed, and an operation panel 18 on which an operator operates to start and stop operation is attached.

  Further, as shown mainly in FIG. 1, a control panel 75 for controlling each of the motors 24, 45, 62, 68 and the chip discharge conveyor 16 is erected at the rear part of the base 10. The width of the control panel 75 is set to be the same as or narrower than the width of the base 10. Left and right frames 76 and 77 formed in a U-shape are erected on the rear upper surface of the base 10. A control panel 75 is attached to left and right mounting arms 78 and 79 extending in the front-rear direction of the left and right frames 76 and 77 via a control panel moving mechanism 80. The control panel moving mechanism 80 includes left and right telescopic rails 80a and 80b that expand and contract in the front-rear direction, and positions the control panel 75 at a normal use position (shown by a solid line in FIG. 6) during the machining operation of the machine tool. The control panel 75 is fixed and moved to a maintenance work position (indicated by a two-dot chain line in FIG. 6) at a position separated rearward from the normal use position in the front-rear direction during maintenance of the machine tool.

  Specifically, as shown in FIG. 6, the right telescopic rail 80b includes a lower rail 81b, an intermediate rail 82b, and an upper rail 83b that are slidably engaged with each other along the longitudinal direction. As shown in FIG. 5, the lower rail 81b includes a mounting portion 81b1 fixed to the mounting arm 79 and an engaging portion 81b2 fixed to the mounting portion 81b1 so as to face the mounting arm 81b1 in parallel in the longitudinal direction. The upper rail 83b includes an attachment portion 83b1 fixed to the bottom right side surface of the control panel 75 and an engagement portion 83b2 fixed to the attachment portion 83b1 so as to face the attachment portion 83b1 in parallel in the longitudinal direction. The intermediate rail 82b is slidably engaged with the lower rail 81b and the upper rail 83b, is formed in a substantially S-shaped cross section, and is opened up and down in the right and left directions (left and right directions in FIG. 5). Both engagement recesses 82b1 and 82b2 are provided. An engaging portion 83b2 of the upper rail 83b is slidably engaged with the upper engaging recess 82b1, and an engaging portion 81b2 of the lower rail 81b is slidably engaged with the lower engaging recess 82b2. A stopper (not shown) is provided between the upper engagement recess 82b1 and the engagement portion 83b2 of the upper rail 83b and between the lower engagement recess 82b2 and the engagement portion 81b2 of the lower rail 81b. The stopper prevents the upper rail 83b and the intermediate rail 82b from coming off from the intermediate rail 82b and the lower rail 81b, respectively.

  Similarly to the right telescopic rail 80b, the left telescopic rail 80a includes a lower rail 81a, an intermediate rail 82a, and an upper rail 83a that are slidably engaged with each other along the longitudinal direction. The lower rail 81a includes an attachment portion 81a1 fixed to the attachment arm 78 and an engagement portion 81a2 fixed to the attachment portion 81a1. The intermediate rail 82a is formed symmetrically with the intermediate rail 82b and includes upper and lower engaging recesses 82a1 and 82a2 that are opened in the left and right directions (left and right direction in FIG. 5), respectively. The upper rail 83a includes a mounting portion 83a1 fixed to the left side surface of the bottom of the control panel 75 and an engaging portion 83a2 fixed to the mounting portion 83a1.

  The control panel 75 in the state where the control panel 75 is retracted by contracting the left and right telescopic rails 80a and 80b, that is, in the normal use position when the machine tool is normally used, is indicated by a solid line in FIG. , 80b are extended and the control panel 75 is pulled out, that is, the control panel 75 at the maintenance work position when the machine tool is maintained is indicated by a two-dot chain line. When the machine tool is normally used, the control panel 75 is fixed to the left and right frames 76 and 77 by bolting or the like in the retracted state. When maintenance is performed on the machine tool, the control panel 75 is pulled out in parallel to the maintenance work position as shown in FIG. 6, and a space is formed between the control panel 75 and the base 10. Since the distance from the normal use position to the maintenance work position is set so that the worker can enter sufficiently, the space formed between the control panel 75 and the base 10 is a space enough for the operator to enter. .

  As is apparent from the above description, in the above-described embodiment, the control panel 75 is positioned and fixed at the normal use position during the machining operation of the machine tool, and the control panel 75 is normally used during the maintenance of the machine tool. The telescopic rails 80a and 80b are moved to a maintenance work position at a position away from the position in the front-rear direction. At this time, the entire control panel 75 is moved to form a space having the same width as the apparatus and between the control panel 75 and the base 10 and a sufficient space for an operator to enter. It can be used as a space for. Therefore, a sufficient space for maintenance of the apparatus can be secured.

  Further, since the control panel moving mechanism 80 is composed of the telescopic rails 80a and 80b that expand and contract along the front-rear direction, the control panel 75 can be moved with a simple and highly rigid configuration.

  In the above-described embodiment, the control panel moving mechanism 80 is composed of the telescopic rails 80a and 80b extending and contracting in the front-rear direction. Instead, the hinge 91 that can be opened and closed in the front-rear direction is used. You may make it comprise from. In this case, as shown in FIG. 7, one piece 91 a of the hinge 91 is fixed to the rear ends of the mounting arms 78 and 79, and the other piece 91 a of the hinge 91 is fixed to the bottom rear portion of the control panel 75. When the control panel 75 is stored, that is, when the machine tool is normally used, the control panel 75 in the normal use position is indicated by a solid line in FIG. 7, and the control panel 75 is tilted later, that is, when the machine tool is maintained. The control panel 75 at the maintenance work position is indicated by a two-dot chain line. When the machine tool is normally used, the control panel 75 is fixed to the left and right frames 76 and 77 by bolting or the like in the retracted state. When the machine tool is to be maintained, the control panel 75 is tilted backward to the maintenance work position with the hinge 91 as a fulcrum as shown in FIG. 7, and a space is formed between the control panel 75 and the base 10. Is done. The space formed between the control panel 75 and the base 10 is set so that an operator can enter it.

  Therefore, the control panel 75 is positioned and fixed at the normal use position during the machining operation of the machine tool, and at the time of maintenance of the machine tool, the control panel 75 is hinged to the maintenance work position at a position away from the normal use position in the vertical direction. It is moved by 91. At this time, the entire control panel 75 is moved to form a space having the same width as the apparatus and between the control panel 75 and the base 10 and a sufficient space for an operator to enter. It can be used as a space for. Therefore, a sufficient space for maintenance of the apparatus can be secured. Further, since the control panel moving mechanism 80 is composed of a hinge 91 that can be opened and closed in the front-rear direction, the control panel 75 can be moved with a simpler configuration.

  Further, in the embodiment described above, the control panel 75 is tilted backward by the hinge 91, but the control panel 75 may be tilted forward. In this case, as shown in FIG. 8, one piece 92 a of the hinge 92 is fixed to the upper end portions of the left and right frames 76 and 77, and the other piece 92 b of the hinge 92 is fixed to the upper back of the control panel 75. The control panel 75 in a state where the control panel 75 is stored, that is, a normal use position when the machine tool is normally used is indicated by a solid line in FIG. 8, and the control panel 75 is tilted forward, that is, the machine tool is maintained. The control panel 75 at the maintenance work position is shown by a two-dot chain line. When the machine tool is normally used, the control panel 75 is fixed to the left and right frames 76 and 77 by bolting or the like in the retracted state. When the machine tool is to be maintained, the control panel 75 is tilted forward with the hinge 92 as a fulcrum to the maintenance work position as shown in FIG. 8 and lifted upward, between the control panel 75 and the base 10. A space is formed. The space formed between the control panel 75 and the base 10 is set so that an operator can enter it.

  Therefore, the control panel 75 is positioned and fixed at the normal use position during the machining operation of the machine tool, and at the time of maintenance of the machine tool, the control panel 75 is hinged to the maintenance work position at a position away from the normal use position in the vertical direction. 92. At this time, the entire control panel 75 is moved, and the control panel 75 is located in the upper rear part of the base 10, so that nothing behind the base 10 becomes an obstacle to maintenance. Therefore, a sufficient space for maintenance of the apparatus can be secured.

  In the above-described embodiment, the turret base 66 is employed as the tool mounting base. Instead, the tool is detachably mounted along the two-direction X-axis and the Y-axis direction orthogonal to the X-axis. It is also possible to adopt a spindle head that moves and a tool mount with a turning index function.

1 is an overview perspective view showing an embodiment of a machine tool according to the present invention. It is a front view which shows the machine tool of FIG. It is a top view which shows the X-axis slide of FIG. It is a fragmentary sectional view which shows the part above the base of the machine tool of FIG. FIG. 2 is a partially enlarged rear view of the machine tool shown in FIG. 1. FIG. 2 is a side view schematically showing the machine tool shown in FIG. 1. It is a side view which shows typically other embodiment of the machine tool by this invention. It is a side view which shows typically other embodiment of the machine tool by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Base, 11 ... Front wall, 11a ... Recessed part, 12 ... Mounting seat, 13 ... Chip storage part, 14 ... Chip receiving member, 16 ... Chip delivery conveyor, 17 ... Exterior cover, 18 ... Operation panel, DESCRIPTION OF SYMBOLS 20 ... Main shaft, 21 ... Bearing member, 22, 23 ... Top and bottom pulley, 24 ... Main shaft motor, 25 ... Pulley, 26 ... Timing belt, 27 ... Encoder, 28 ... Pulley, 29 ... Timing belt, 30 ... X-axis slide, 30a ... recess, 31, 32 ... left and right side walls, 33 ... intermediate standing wall, 34 ... rear side wall, 35 ... top wall, 36, 37 ... left and right guides, 36a, 37a ... sliding engagement part, 40 ... X-axis slide drive unit 41 ... Frame body, 42, 43 ... Front and rear walls, 44 ... Feed screw, 45 ... X-axis slide motor, 46 ... Mounting plate, 47 ... Nut, 50 ... Z-axis slide, 51 ... Main body, 52 ... Front wall, 53,5 ... left and right flanges, 53a, 54a ... sliding engagement portion, 55 ... left guide, 56 ... right guide, 57 ... rear wall, 58 ... nut, 59 ... feed screw, 61 ... pulley, 62 ... Z-axis slide motor, 63 ... Mounting bracket, 64 ... Pulley, 65 ... Timing belt, 66 ... Turret base, 67 ... Pulley, 68 ... Motor for turret base, 69 ... Mounting bracket, 71 ... Pulley, 72 ... Timing belt, 74 ... Control panel, 76 , 77 ... left and right frames, 78 and 79 ... left and right mounting arms, 80 ... control panel moving mechanism, 80a and 80b ... left and right telescopic rails, 81a and 81b ... lower rails, 82a and 82b ... intermediate rails, 83a and 83b ... upper rails, 91, 92 ... Hinge, C ... Chuck, T ... Tool, W ... Workpiece.

Claims (3)

A spindle on which a workpiece is gripped on the upper surface of the front wall of the base formed in a rectangular parallelepiped shape, which is rotatably supported with a Z axis perpendicular to the upper surface of the base as a rotation axis;
A spindle motor that is detachably attached to the front wall of the base and rotates the spindle;
An X-axis slide attached to the upper surface of the base so as to be slidable in the front-rear direction;
An X-axis slide motor that is detachably attached to a rear portion of the base and reciprocates the X-axis slide;
A Z-axis slide attached to the front wall of the X-axis slide so as to be slidable parallel to the Z-axis direction;
A Z-axis slide motor that is detachably attached to the back surface of the X-axis slide and reciprocates the Z-axis slide;
A tool mounting base that is assembled to the Z-axis slide and detachably mounted with a tool for cutting the workpiece;
A control panel installed on the back of the base to control the motors;
A machine tool comprising a control panel moving mechanism for moving the control panel in the front-rear direction,
The control panel moving mechanism positions and fixes the control panel at a normal use position during the machining operation of the machine tool, and the control panel is moved away from the normal use position in the front-rear direction or the vertical direction during maintenance of the machine tool. A machine tool that is moved to a maintenance work position.   The machine tool according to claim 1, wherein the control panel moving mechanism is configured by an extendable rail extending and contracting along the front-rear direction. 2. The machine tool according to claim 1, wherein the control panel moving mechanism includes a hinge that can be opened and closed in the front-rear direction.

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