JP2008080409A - Working line of machine tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easy-to-maintain machine tool with a minimum space required for installing the machine, and a working line constituted by a plurality of machine tools. <P>SOLUTION: In a working line L, machine tools M are horizontally aligned on a line, and a cover 56 is provided to cover the entire working line L. A plurality of front opening/closing windows 58 corresponding to each of the machine tools M are provided to the cover 56 to check a processing from the opening/closing window 57 and the front for delivering a workpiece W and perform delivery separate from the illustrated delivery. A coolant device 51 is provided to traverse a front of each of the machine tools M, and recovery ports 59 are provided at positions corresponding to front parts of the each of the machine tools M. Also, a workpiece delivery means 55 for delivering the workpiece W is provided between the opening/closing window 57 and each of the machine tools M, M. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a machine tool and a machining line configured by arranging machine tools.

As a machining system, Patent Document 1 discloses a machining system including an installation base body installed on a floor surface and a plurality of processing machine bodies mounted on the installation base at intervals in the lateral direction. .
JP 2005-219167 A

  In the machining system described in Patent Document 1, it is easy to approach the machine main body by maintenance or the like from the front of the machining line, but in order to approach the machine main body from the rear, an electric control unit or fluid pressure is required. There is a problem that the unit gets in the way and maintenance is difficult. Moreover, it is not the structure which can change a tool manually during operation of a machine.

  An object of the present invention is to provide a machine tool that is easy to maintain and that has a minimum space required for machine installation, and a machining line that includes a plurality of machine tools.

  In order to solve the above problems, the invention according to claim 1 is constituted by a pair of left and right side frames and a connecting frame that connects the both side frames, and is surrounded by the pair of left and right side frames and the connecting frame. A machine frame having a vertical machining space and having a vertical opening, a work table provided in the machining space, and a spindle unit provided at an upper part of the machine frame, the spindle unit being orthogonal three axes A processing machine unit movably provided in a direction, an exhaust material recovery device provided in front of or below the machine base unit, and an exhaust material guide for guiding the exhaust material discharged in the processing space to the exhaust material recovery device It is a gist to provide a machine tool comprising means.

  According to a second aspect of the present invention, there is provided the machine tool according to the first aspect, wherein a notch portion is provided in a lower portion of the machine base frame, and the discharge collecting device is disposed in the notch portion. This is the gist.

  The invention according to claim 3 is a processing line in which a plurality of machine tools according to claim 1 are arranged side by side, and at least two machine tools constituting the processing line are arranged with respect to the processing line. A gist is to provide a machining line for machine tools, characterized in that a common waste collection device is provided in front or below, and the waste discharged from each machine tool is collected by the waste collection device. To do.

  According to a fourth aspect of the present invention, in the machine tool machining line according to the third aspect, each machine tool in the machining line is provided with a notch at a lower portion of the machine base frame, and the notch is provided at the notch. The gist of the present invention is to provide a machining line for a machine tool in which the waste collection device is arranged.

  According to a fifth aspect of the present invention, there is provided a machine tool processing line according to the third or fourth aspect, wherein the discharge collecting device is provided with a recovery port corresponding to each machine tool in the processing line. The main point is to provide a machine processing line.

  According to a sixth aspect of the present invention, there is provided a machine tool machining line according to any one of the third to fifth aspects, wherein a cover that covers the entire machining line is provided. The main point is to provide a processing line.

  The invention according to claim 7 is characterized in that openings are provided on both side surfaces of the cover in the machining line of the machine tool according to claim 6 so that workpieces can be carried in and out from the side of the machining line. The main point is to provide a machine tool machining line.

  According to the machine tool of the first aspect of the present invention, it is possible to discharge wastes such as chips and coolant discharged in the processing space from the front or the lower side, and the waste collection device projects over the rear of the machine. Therefore, maintenance from the rear side of the machine is easy and the installation space of the machine can be reduced. In addition, since it has a machine base frame that is open in the vertical direction, there is a large open space below, good dischargeability of the discharge, and a high degree of freedom in designing the shape of the discharge guide means. As a result, it is possible to design a discharge guide means optimized for a highly functional shape, purpose and application. Further, when the waste collection device is installed at the lower side, there is no obstacle in the front, and the maintenance performance from the front is further improved. Moreover, the weight of the machine main body can be greatly reduced by making the machine main body into a frame shape, and the burden on the waste collection device located below the machine main body can be reduced.

  Furthermore, according to the machine tool of the second aspect of the present invention, the discharged material such as chips and coolant discharged in the processing space is discharged from the discharged material collecting device disposed in the notch portion provided in the lower part of the machine unit. It is possible to facilitate maintenance from the front and rear of the machine and further reduce the installation space of the machine.

  Furthermore, according to the processing line of the third aspect of the present invention, the waste collection device can be shared with at least two machine tools constituting the processing line. It is possible to reduce the number of units and the installation space of the entire processing line. In addition, since the waste collection device is arranged in front or below, maintenance from the rear becomes easy. In addition, when the waste collection device is installed below, the maintainability from the front is further improved.

  Furthermore, according to the machining line of claim 4 of the present invention, each machine tool in the machining line is provided with a notch in the lower part of the machine base frame, and an exhaust collection device is provided for the notch. In addition to the effect of claim 3, the installation space of the entire processing line can be further reduced. In addition, maintenance from the front and rear becomes easy.

  Furthermore, according to the processing line according to claim 5 of the present invention, since the discharge collection device is provided with a collection port corresponding to each machine tool, it is efficiently discharged even when a plurality of machine tools are arranged. It is possible to collect the object, and there is an effect that the collected object is hardly scattered.

  Furthermore, according to the processing line of the sixth aspect of the present invention, since the cover that covers the entire processing line is provided, it is not necessary to provide an individual cover for each machine tool in the processing line. As a result, the number of parts can be reduced.

  Furthermore, according to the processing line of the seventh aspect of the present invention, since the opening that can carry in and out the workpiece from the side of the processing line is provided on both side surfaces of the line covering the entire processing line, Since the carry-in and carry-in operations are also performed through the side, approach from the front and rear of the processing line becomes easy.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a machine tool embodying the present invention will be described with reference to the drawings.
As shown in FIG. 1, the machine base frame 10 of the machine tool is constituted by a pair of side frames 11, 11 that are parallel to each other, and a connecting frame 13 that is integrally bridged between the side frames 11. It is released vertically. A processing space E is formed in front of the connecting frame 13 between the side frames 11. A work table 14 for mounting a work is attached to the front surface of the connection frame 13.

  On the upper end surfaces of the side frames 11, 11, Y-axis guide rails 15 are laid in parallel to each other in the Y-axis (front-rear) direction. A Y-axis saddle 16 is attached to the Y-axis guide rail 15 via a slider 17 so as to be able to reciprocate in the Y-axis direction. A Y-axis servomotor 18 is fixed to the connection frame 13, and a ball screw 19 is connected in series to the rotation shaft via a coupling (not shown). The ball screw 19 is bracketed to the Y-axis saddle 16. 20 is screwed into a ball screw nut 21 attached thereto. When the ball screw 19 is rotated by the Y-axis servomotor 18, the Y-axis saddle 16 is reciprocated in the Y-axis (front-rear) direction via the nut 21.

  As shown in FIG. 1, the Y-axis saddle 16 is formed in a U shape in a plan view by a pair of left and right movable frames 16a and 16b and a movable attachment body 16c connected between the rear ends of the movable frames 16a and 16b. Is formed. A pair of upper and lower X-axis guide rails 22 are laid parallel to each other in the X-axis (left-right) direction on the front surface of the movable mounting frame 16c. An X-axis saddle 23 is attached to the X-axis guide rail 22 via a slider 24 so as to be able to reciprocate in the X-axis direction. As shown in FIG. 3, an X-axis servomotor 25 is disposed on the back side of the movable mounting frame 16c of the Y-axis saddle 16, and a ball screw 26 is connected to the rotating shaft via a coupling. 26 is screwed into a ball screw nut 28 attached to the X-axis saddle 23 via a bracket 27. When the ball screw 26 is rotated by the X-axis servomotor 25, the X-axis saddle 23 is reciprocated in the X-axis (left and right) direction via the nut 28.

  A pair of left and right guide members 29 are attached to the front surface of the X-axis saddle 23 so as to be oriented in the Z-axis (up and down) direction. A pair of left and right Z-axis guide rails 31 laid parallel to each other are mounted so as to be reciprocable in the Z-axis direction. A Z-axis servomotor 32 is attached to the upper end of the X-axis saddle 23, and a ball screw 33 is connected to the rotating shaft via a coupling (not shown). The ball screw 33 is connected to the Z-axis saddle 30. Screwed into a ball screw nut 35 attached via a bracket 34. When the ball screw 33 is rotated by the Z-axis servo motor 32, the Z-axis saddle 30 is reciprocated in the Z-axis direction via the nut 35.

  A spindle device 36 as a spindle unit is mounted downward on the Z-axis saddle 30, and a tool 38 for machining a workpiece is attached to the tip of the spindle 37. A spindle motor 39 for rotating the spindle 37 is mounted on the Z-axis saddle 30. In this embodiment, the Y-axis saddle 16, the Y-axis servo motor 18, the X-axis saddle 23, the X-axis servo motor 25, the Z-axis saddle 30, the Z-axis servo motor 32, the spindle device 36, the spindle motor 39, and the like are used as a processing machine. Unit is configured.

  As shown in FIG. 2, a tool changer 41 for changing a tool 38 attached to the main shaft 37 is attached to the back side of the connection frame 13.

  The configuration of the tool changer 41 will be described with reference to FIG. A magazine turning motor 43 is mounted on the back side of the connecting frame 13 via a bracket 42, and a magazine 44 is supported on its rotating shaft so as to be rotatable around a vertical axis. On the outer periphery of the magazine 44, gripping portions 45 for gripping the tool 38 together with the tool holder are mounted at a plurality of locations. The connection frame 13 is provided with an opening / closing port 46 for opening and closing the processing space E and the magazine storage portion so as to be opened and closed by a driving means (not shown). Then, the magazine turning motor 43 indexes and rotates a predetermined grip 45 of the magazine 44 to the tool change position, and operates the Y-axis servo motor 18, the X-axis servo motor 25, and the Z-axis servo motor 32. Thus, the used spindle 38 and the new tool 38 can be exchanged directly with the magazine 44 by moving the spindle device 36 in the X, Y, and Z axis directions, respectively.

  On the front side of the side frame 11, a recess 11a is formed for forming an opening for loading and unloading the workpiece W into and from the workpiece table 14 by a workpiece conveying device 55 used in a machining line L as shown in FIG. .

  As shown in FIG. 1, a coolant device 51 serving as a waste collection device is provided in front of the machine base frame 10, and a waste is disposed at a lower open position of the processing space E between the side frames 11. A shooter 52 is provided as guide means. Then, wastes such as chips and coolant generated in the processing space E due to processing of the workpiece are collected by the coolant device 51 via the shooter 52.

  Next, the operation of the machine tool configured as described above will be described. A work is placed on the upper surface of the work table 14, and the work is clamped at a predetermined position by a work clamp mechanism (not shown). The main shaft motor 39 is operated to rotate the main shaft 37, and the Y-axis servo motor 18, the X-axis servo motor 25, and the Z-axis servo motor 32 are operated to process the workpiece with the tool 38. Wastes such as chips and coolant generated during machining of the workpiece are collected by the coolant device 51 via the shooter 52.

  When the tool 38 needs to be replaced after the workpiece has been processed for a predetermined time, the opening / closing port 46 is opened by a driving means (not shown), and then the magazine turning motor 43 of the tool changer 41 is operated to activate the magazine. 44 gripping portions 45 are indexed and rotated to the tool change position, and the used tool 38 and the new tool 38 are exchanged by the movement of the spindle device 36 in the three-axis direction.

According to the machine tool in the above embodiment, the following effects can be obtained.
(1) In the above embodiment, since the coolant device 51 is provided in front of the machine base frame 10 and the discharged material is collected by the coolant device 51, the coolant device 51 does not protrude rearward. The approach from the rear of the machine to the machine body is facilitated.
(2) In the above embodiment, since the magazine 44 of the tool changer 41 is provided on the back side of the connection frame 13, manual tool change can be easily performed from the rear even during processing.
(3) Since the machine base frame 10 is opened in the vertical direction, there is a large open space below, good dischargeability of discharged matter, and a high degree of freedom in designing the shape of the shooter 52. This makes it possible to design the shooter 52 optimized for highly functional shapes, purposes and applications.

  Next, a processing line in which a plurality of machine tools in the above embodiment are arranged will be described with reference to FIGS. In the following embodiments, members having the same functions as those in the above-described embodiments are denoted by the same reference numerals, and description thereof is simplified or omitted.

  In the processing line L, the machine tools M in the above embodiment are arranged in a horizontal row, and a cover 56 is provided so as to cover the entire processing line L. The cover 56 has an opening / closing window 57 for loading and unloading the workpiece W, confirmation of the machining state from the front, and a plurality of front opening / closing steps corresponding to each machine tool M for carrying the conveyance in a form different from the illustrated conveyance form. A window 58 is provided. The coolant device 51 is provided so as to cross the front of each machine tool M, and a recovery port 59 is provided at a position corresponding to the front of each machine tool M. Further, a workpiece transfer means 55 for transferring the workpiece W is provided between the outside of the opening / closing window 57 and each machine tool M, M.

Next, the operation of the processing line L in the above configuration will be described.
The unprocessed workpiece W is carried into the upper part of the work table 14 of the processing machine M through the opening / closing window 57 by the workpiece transfer means 55. The loaded workpiece W is clamped by a workpiece clamping mechanism (not shown) and predetermined processing is performed. Wastes such as chips and coolant discharged during processing are collected by the coolant device 51 via the shooter 52 and the collection port 59. The collected solids such as chips and sludge are transported by the chip conveyor 60 and are collected from a carry-out port 62 to a solid material collection box (not shown) outside the coolant device 51. Liquid material such as coolant is filtered by the drum filter 61, stocked in a clean tank (not shown), and reused. The workpiece W that has completed all the machining steps is carried out of the machining line L by the workpiece transfer means 55 through the opening / closing window 57 on the opposite side.

According to the processing line in the above embodiment, the following effects can be obtained.
(1) Since the collection port 59 corresponding to the machine tool M is provided so that the coolant device 51 can be shared by a plurality of machine tools M, the number of installed coolant devices 51 can be reduced, so that the number of parts and the installation area can be reduced. Can be reduced.
(2) Since the coolant device 51 is provided so as to cross the front of each machine tool M, maintenance of the machine from the rear of each machine tool M is facilitated.
(3) Since the cover 56 is provided so as to cover the entire processing line L, it is not necessary to provide an external cover for each individual machine tool M, so the number of parts can be reduced and the distance between the machine tools M and M can be reduced. Therefore, the length of the processing line L can be shortened, and the installation space for the processing line L can be reduced.
(4) Since the open / close windows 57 that can be opened and closed are provided on both side surfaces of the cover 56, the processing line L can be made straight in the horizontal direction, and the installation space for the processing line L can be reduced.
(5) Since each machine tool M constituting the processing line L has a machine frame 10 that is open in the vertical direction, there is a large open space below, good dischargeability of discharged matter, and freedom of shape design of the shooter 52 High degree. This makes it possible to design the shooter 52 optimized for highly functional shapes, purposes and applications. Thus, it is possible to configure a processing line L that has good dischargeability of wastes such as chips and coolant.

In addition, you may change the said embodiment as follows.
As shown in FIGS. 5 and 6, the machine tool M may be placed on the coolant device 51. As a result, in addition to the effects of the above-described embodiment, the installation space can be further reduced, and the coolant device 51 disposed in the front can be eliminated, so that the approach from the front of the machine tool M can be facilitated. Improvement in maintainability can be expected. Further, since the machine tool M has a frame shape, the weight of the machine tool M can be significantly reduced, and the burden on the coolant device 51 positioned below the machine tool M can be reduced.
Further, the machine tool M shown in FIGS. 5 and 6 may be arranged to form a machining line L as shown in FIG. As a result, in addition to the effects of the above-described embodiments, the installation space can be further reduced, and the coolant device 51 disposed in the front can be eliminated, so that the approach from the front of the processing line L can be facilitated. The optimum configuration is achieved by improving the maintainability and the work loading / unloading form from the front. In addition, since the machine tool M constituting the machining line L has a frame shape, the weight of the machine tool M can be significantly reduced, and the burden on the coolant device 51 located below the machine tool M can be reduced.

-You may divide | segment the coolant apparatus 51 as shown in FIG. In this case, it is possible to configure a machining line L composed of more machine tools M.
As shown in FIG. 9, the shooter 52 may be disposed rearward, and a coolant device 51 for collecting the discharged material may be provided behind the machine base unit 10. In this case, conveyance from the front of the machine becomes easy, and installation space can be reduced. Although not shown, it is also possible to form a machining line L by arranging a plurality of machine tools M as shown in FIG.
As shown in FIG. 10, a notch portion 71 is provided in the lower part of the machine base unit 10 and the coolant device 51 is disposed in the notch portion 71, and the coolant device 51 is connected to the coolant device 51 via a shooter 52 provided below the machining space. The coolant or the like may be recovered. In addition to the effects of the above-described embodiment, the machine tool M having such a configuration can further reduce the installation space, and can be approached easily from the front and rear of the machine tool M, thereby further improving maintainability. Improvements and diversification of transport forms can be expected. In the embodiment shown in FIG. 10, the notch 71 is provided at the rear of the machine base unit 10, but can be arranged at an arbitrary position such as the front or intermediate position. It is also possible to configure a machining line L by arranging a plurality of machine tools M. According to this processing line L, in addition to the effects of the above-described embodiment, the installation space can be further reduced, and approach from the front and rear of the machine tool M is facilitated, and further maintainability is improved. In addition, diversification of transport forms can be expected.

The perspective view which shows the machine tool in 1st Embodiment of this invention. Sectional drawing which shows the machine tool in 1st Embodiment of this invention. The perspective view which shows the processing line which arranged the multiple machine tools in 1st Embodiment of this invention. A sectional view showing a processing line which arranged a plurality of machine tools in a 1st embodiment of the present invention. The perspective view which shows the machine tool in another embodiment of this invention. Sectional drawing which shows the machine tool in another embodiment of this invention. Sectional drawing which shows the processing line which arranged the several machine tool in another embodiment of this invention. Sectional drawing which shows the processing line which arranged the several machine tool in another embodiment of this invention. Sectional drawing which shows the machine tool in another embodiment of this invention. Sectional drawing which shows the machine tool in another embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Machine stand frame, 11 ... Side frame, 13 ... Connection frame, 14 ... Work table, 36 ... Spindle device, 41 ... Tool changer, 51 ... Coolant device, 52 ... Shooter, 55 ... Work conveying device, 57 ... Opening and closing Window, 59 ... discharge port, E ... machining space, M ... machine tool, L ... machining line.

Claims (7)

A machine frame that includes a pair of left and right side frames and a connecting frame that connects the two side frames and has a processing space surrounded by the pair of left and right side frames and the connecting frame, and is open in the vertical direction; A work table provided in a processing space; a processing machine unit provided at an upper portion of the machine base frame, having a main spindle unit and movable in the three orthogonal directions; and a front side of the machine base unit. Alternatively, a machine tool comprising an exhaust collection device provided below and an exhaust guide means for guiding the exhaust discharged in the processing space to the exhaust collection device. 2. The machine tool according to claim 1, wherein a notch portion is provided at a lower portion of the machine base frame, and the waste collection device is disposed in the notch portion. A processing line in which a plurality of the machine tools according to claim 1 are arranged side by side, and for at least two machine tools constituting the processing line, common waste collection in front of or below the processing line A machine tool processing line characterized in that an apparatus is provided, and the waste discharged from each of the machine tools is collected by the waste collection device. 4. The machine tool processing line according to claim 3, wherein each machine tool in the processing line is provided with a notch in the lower part of the machine base frame, and the waste collecting device is disposed in the notch. Machine processing line. 5. The machining line for a machine tool according to claim 3, wherein the waste collection device is provided with a collection port corresponding to each machine tool in the machining line. 6. The machine tool machining line according to claim 3, further comprising a cover that covers the entire machining line. The machine tool machining line according to claim 6, wherein openings on both sides of the cover of the machine tool machining line according to claim 6 are provided with openings through which workpieces can be loaded and unloaded from the side of the machining line.

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