WO2019065438A1

WO2019065438A1 - Machining device

Info

Publication number: WO2019065438A1
Application number: PCT/JP2018/034780
Authority: WO
Inventors: 荒川修吾; 植木義人; 内水智也; 山浦祐紀
Original assignee: 本田技研工業株式会社
Priority date: 2017-09-29
Filing date: 2018-09-20
Publication date: 2019-04-04
Also published as: JPWO2019065438A1; JP6872622B2

Abstract

This machining device comprises: a support column (22) having a plurality of workpiece attachment surfaces; a first machining unit (32A) and a second machining unit (32B) that perform drilling on a workpiece fixed to the workpiece attachment surfaces; a third machining unit (32C) that performs tapping on the workpiece; an oil pan (13) that receives used coolant containing chips and the like, from the machining units; and a coolant tank (17). The oil pan (13) comprises, between the first machining unit (32A) and the second machining unit (32B) that perform drilling, a discharge port (60) that discharges the used coolant to the coolant tank (17).

Description

Processing device

The present invention relates to, for example, a processing apparatus that performs machining on a work.

Conventionally, for example, in Japanese Patent No. 5329049, the base of a machine tool is provided with a tip for collecting cuttings and coolant, and the collected cuttings and coolant are collected in a collection tank provided so as to be extractable in the base. Processing apparatus is disclosed. In addition, conventionally, in multi-axis processing, there is a processing apparatus in which a coolant device is disposed behind a processing unit and chips are flowed using an inclined bed oil pan.

However, since it is necessary to flow the used coolant which contains chips etc. to the back of a processing unit, the conventional processing apparatus has a bad discharge efficiency of chips. For example, in the case of a processing apparatus that performs processing from three directions, a drive device for positioning a work is required, or a bed supporting a jig for supporting a work must be designed with a heavy thickness. Therefore, it is possible that a dropper for collecting coolant and chips can not be provided immediately below the chips are discharged, and chips tend to be deposited on the processing apparatus.

The present invention has been made in consideration of such problems, and it is an object of the present invention to provide a processing apparatus which can improve the chip discharge efficiency and can lead to stable operation of a production line.

[1] A processing apparatus according to the present invention includes a support having a plurality of work attachment surfaces, at least two processing units that perform drilling on a work fixed on the work attachment surface, and fixing the work attachment surface At least one processing unit for performing tapping on the processed work, an oil pan for receiving at least used coolant from the processing unit, and a coolant tank, the oil pan performing the drilling 2 It is characterized by having an outlet for discharging the used coolant to the coolant tank between two processing units.

The amount of chips and the like is larger in drilling than in tapping. The oil pan has an outlet for discharging the used coolant to the coolant tank between the two processing units to be drilled, so the used coolant with a large amount of chips etc. can be supplied to the coolant tank through the outlet. It can be discharged. That is, the discharge efficiency of the used coolant having a large amount of chips and the like can be enhanced, and the amount of chips and the like remaining in the oil pan can be reduced. This improves chip discharge efficiency and leads to stable operation of the production line.

[2] In the present invention, the oil pan has a rectangular shape when viewed from the top, and the discharge port is a corner corresponding to the portion between the two processing units to be drilled among the four corners of the oil pan. It may be formed in Thus, the used coolant having a large amount of chips and the like from the two processing units to be drilled can be discharged efficiently.

[3] In the present invention, the planar shape of the discharge port preferably has a rectangular shape in which the processing direction by one of the processing units is the longitudinal direction. As a result, the used coolant having a large amount of chips and the like from the two processing units to be drilled can be more efficiently discharged to the discharge port.

[4] In the present invention, the oil pan includes a first discharge groove formed closer to one processing unit to be drilled and a second discharge formed closer to the other processing unit to be drilled. And a third discharge groove formed closer to the processing unit that performs tapping, and the first discharge groove and the third discharge groove are directed toward the other processing unit, respectively. The second discharge groove may be inclined downward toward the one processing unit.

The first discharge groove, the second discharge groove, and the third discharge groove formed in the oil pan are all inclined downward toward the discharge port, so that the used coolant including chips etc. is discharged. It can be more efficiently discharged to the outlet.

[5] In the present invention, the number of drilling heads for drilling the work on the first discharge groove is the drilling for drilling the work on the second discharge groove. When the inclination angle of the first ejection groove is θa and the inclination angle of the second ejection groove is θb, which is larger than the number of heads, it is preferable that θa> θb.

Since the number of heads drilling the work on the first discharge groove is greater than the number of heads drilling the work on the second discharge groove, cutting to the first discharge groove is performed. The amount of scraps etc. will be larger than the amount of chips etc. to the second discharge groove. Therefore, by making the inclination angle θa of the first discharge groove larger than the inclination angle θb of the second discharge groove, the discharge efficiency of the used coolant with a large amount of chips etc. becomes high, and the oil pans become chips etc. The amount of remaining can be reduced.

ADVANTAGE OF THE INVENTION According to the processing apparatus which concerns on this invention, the discharge | emission efficiency of chips can be improved and it leads to the stable operation of a production line.

It is a perspective view showing the processing device concerning this embodiment. FIG. 2 is a plan view of the processing device as viewed from above. FIG. 3A is a schematic view showing the processing operation of the processing apparatus, and FIG. 3B is a flowchart showing the processing operation of the processing apparatus. FIG. 4A is a schematic view showing drilling and tapping by a pair of machining units as viewed from the top, and FIG. 4B is a schematic view seen from arrow A in FIG. 4A. It is Table 1 which shows a series of processing operation of a processing apparatus. It is a perspective view which partially omits and shows the processing apparatus (1st processing apparatus) which concerns on a 1st modification. It is a top view which shows a 1st processing apparatus seeing from an upper surface. It is a top view which shows the example of the process area | region formed of a 1st process unit, a 2nd process unit, and a 3rd process unit. It is a top view which shows the example of the new process area | region formed of a 1st plate, a 2nd process unit, and a 3rd process unit. It is a top view which shows the example of the new process area | region formed of a 1st process unit, a 2nd plate, and a 3rd process unit. It is a flow chart which shows processing operation of the 1st processing device. It is a top view which partially omits and shows the processing apparatus (2nd processing apparatus) which concerns on a 2nd modification.

Hereinafter, an embodiment of a processing apparatus according to the present invention will be described with reference to FIGS. 1 to 12.

The processing apparatus 10 according to the present embodiment includes, as shown in FIG. 1, a workstation 12 installed at the center, a first processing machine 14A installed at the left side of the workstation 12, for example, and a workstation 12 It has the 2nd processing machine 14B installed in the back side, and the 3rd processing machine 14C installed in the right side of work station 12, for example. For example, when the first processing machine 14A, the workstation 12, and the third processing machine 14C are arranged along the front, and the second processing machine 14B is disposed behind the workstation 12, when viewed from the top, T-shaped arrangement It is assumed. In the processing apparatus 10, a coolant tank 17 (see FIG. 2), a chip conveyor (not shown), a pneumatic device, a hydraulic unit, and the like are installed behind the second processing machine 14B, in addition to the control device 16. The coolant tank 17 removes chips and the like from the used coolant including chips and the like that are emitted during processing by the first processing machine 14A, the second processing machine 14B, and the like.

The work station 12 is installed, for example, on a flat square base 18, a turntable 20 rotatably mounted on the base 18, a post 22 fixed at the center of the turntable 20, and a top of the post 22. And the motor which is not shown in figure is stored inside, and it has the rotational drive part 24 which rotationally drives the support | pillar 22. The support 22 is rotationally driven in one direction about the support shaft together with the turntable 20 by the motor. In this case, when the support 22 is viewed from above, it is rotationally driven clockwise. The support column 22 is formed in a columnar shape whose longitudinal direction is the vertical direction, and has four side surfaces, that is, four work mounting surfaces 25. For example, three workpieces W (see FIG. 4B) can be attached to the workpiece attachment surfaces 25 respectively. Positioning means 26 (see FIG. 4A), such as positioning pins (or positioning holes) and locking claws (not shown), are provided on each work mounting surface 25 of the column 22. This makes the work W accurate and reliable. Positioning can be fixed. In the case where each of the three workpieces W is attached to each workpiece attachment surface 25 one by one in the vertical direction, the attachment positions of the workpieces W will be referred to as bottom, middle, and top.

The controller 16 has a positioning drive 27 for rotating the column 22 clockwise by 1/4 rotation. The positioning drive unit 27 rotates each of the columns 22 clockwise by 1⁄4 rotation to position each work attachment surface 25 in a position facing the front, a position facing the first processing machine 14A, and a second processing machine 14B. And the position facing the third processing machine 14C.

In the present embodiment, a cylinder block of an internal combustion engine (engine) is exemplified as the workpiece W to be machined by the machining device 10. However, another workpiece such as a transmission case of a vehicle may be applied as the workpiece W. Of course it is possible.

Attachment and detachment of the work W to the support 22 is performed to the work attachment surface 25 facing the front among the four work attachment surfaces 25 of the support 22. In the meantime, machining is performed on the workpiece W mounted on the other workpiece mounting surface 25. That is, the workpiece W is attached to the workpiece attachment surface 25 facing the front among the four workpiece attachment surfaces 25 of the column 22. By rotating the support 22 in the clockwise direction, the processing on the work W is performed, and as the support 22 rotates, the work W is removed from the work mounting surface 25 facing the front again.

Then, the first processing machine 14A moves along a first rail base 28A extending toward the work station 12 and a first rail 30A (see FIG. 2) provided on the upper surface of the first rail base 28A. It has a first processing unit 32A and a first movement driving means 34A (for example, a screw feed mechanism: see FIG. 2) for driving the first processing unit 32A to be able to move back and forth relative to the work station 12. The first rail base 28A has at least discharge grooves M1 and M2 (see FIG. 2) for flowing chips and coolant toward the work station 12.

The first processing unit 32A includes a first column 36A movably attached to the first rail 30A, and a first jig attachment plate 38A attached to a surface of the first column 36A facing the workstation 12. Have. As schematically shown in FIGS. 3A and 4A, at least two types of first multiaxial machining heads 40A are attached to the first jig attachment plate 38A. For example, the first multiaxial processing head 40A is attached along the vertical direction at the horizontal center position of the first jig attachment plate 38A and the position near the second processing machine 14B. Of course, the first multi-axis machining head 40A is attached corresponding to the position (lower, middle and upper) of the work W attached to the column 22 of the work station 12. The same applies to the second processing unit 32B and the third processing unit 32C described later. Further, in the first processing unit 32A, three long first cylindrical portions 42A protruding toward the work station 12 are formed at a position near the second processing machine 14B, and the first processing unit 32A is configured to receive the first through the respective long first cylindrical portions 42A. The multi-axis machining head 40A is attached and protrudes toward the work station 12 more than the other first multi-axis machining heads 40A at the central position. In addition, in the first column 36A, a rotation drive mechanism (not shown) for driving to rotate the first multi-axis machining head 40A individually is incorporated.

As shown in FIGS. 1 and 2, the second processing machine 14B extends along a second rail base 28B extending toward the work station 12 and a second rail 30B provided on the upper surface of the second rail base 28B. And a second movement drive means 34B (for example, a screw feed mechanism: see FIG. 2) for driving the second processing unit 32B so as to be able to move forward and backward with respect to the work station 12. The second rail mount 28B has at least discharge grooves M3 and M4 (see FIG. 2) for flowing the used coolant toward the work station 12.

The second processing unit 32B includes a second column 36B movably attached to the second rail 30B, and a second jig attachment plate 38B attached to the surface of the second column 36B facing the workstation 12. Have. As schematically shown in FIG. 3A, at least three types of second multiaxial machining heads 40B are attached to the second jig attachment plate 38B. For example, the second multi-axis machining head 40B is mounted along the vertical direction at the horizontal center position of the second jig attachment plate 38B, the position near the first processing machine 14A, and the position near the third processing machine 14C. It is done. In addition, long second cylindrical portions 42B protruding toward the work station 12 are formed at positions near the first processing machine 14A and positions near the third processing machine 14C, respectively. A two-multi-axis machining head 40B is attached and protrudes toward the workstation 12 more than the other second multi-axis machining heads 40B at the central position. In addition, a rotation drive mechanism (not shown) for driving to rotate the second multi-axis machining head 40B individually is also incorporated in the second column 36B.

As shown in FIGS. 1 and 2, the third processing machine 14C, like the first processing machine 14A, has a third rail base 28C extending toward the workstation 12 and an upper surface of the third rail base 28C. A third processing unit 32C that moves along the provided third rail 30C, and a third movement driving unit 34C that drives the third processing unit 32C to be able to move to the work station 12 (for example, a screw feed mechanism: FIG. 2) Reference). The third rail mount 28C has discharge grooves M5 and M6 (see FIG. 2) for flowing at least the used coolant toward the work station 12.

The third processing unit 32C includes a third column 36C movably attached to the third rail 30C, and a third jig attachment plate 38C attached to the surface of the third column 36C facing the work station 12. Have. As schematically shown in FIGS. 3A and 4A, at least two types of third multiaxial machining heads 40C are attached to the third jig attachment plate 38C. For example, the third multi-axis processing head 40C is attached in the vertical direction at the horizontal center position of the third jig attachment plate 38C and the position near the second processing machine 14B. In addition, three long third cylindrical portions 42C protruding toward the work station 12 are formed at a position near the second processing machine 14B, and the third multiaxial processing head 40C is provided through the respective long third cylindrical portions 42C. It is attached and protrudes toward the work station 12 more than the other third multi-axis machining head 40C at the central position. In addition, in the third column 36C, a rotation drive mechanism (not shown) for driving to rotate the third multi-axis machining head 40C individually is incorporated.

With the above-described configuration, as shown in FIG. 3A, of the first multi-axis processing head 40A at the center of the first multi-axis processing head 40A of the first processing unit 32A, of the workpiece W fixed to the support 22, Machining (for example, drilling) is performed on each front surface of the three workpieces W fixed on the lower, middle and upper stages of the workpiece mounting surface 25 facing the first jig mounting plate 38A. Of the workpiece W fixed to the workpiece mounting surface 25 of the column 22, the first multi-axial processing head 40A closer to the second processing machine 14B includes the lower, middle and upper stages of the workpiece mounting surface 25 facing the second processing machine 14B. The processing (for example, drilling) is performed on the right side surfaces of the three workpieces W (surfaces facing the first processing machine 14A).

Similarly, the second multi-axis processing head 40B at the center of the second multi-axis processing head 40B of the second processing unit 32B faces the second jig attachment plate 38B of the work W fixed to the column 22. Machining (for example, drilling) is performed on each front surface of the three workpieces W fixed on the lower, middle and upper stages of the workpiece attachment surface 25. The second multi-axis processing head 40B closer to the first processing machine 14A is three of the work mounting surfaces 25 of the column 22 fixed to the lower, middle and upper stages of the work mounting surface 25 facing the first processing machine 14A. The processing (for example, drilling) is performed on the left side surface (the surface facing the second processing machine 14B) of the workpiece W. The second multi-axis processing head 40B closer to the third processing machine 14C is the lower, middle and upper stages of the work mounting surface 25 facing the third processing machine 14C among the works W fixed to the work mounting surface 25 of the column 22 The processing (for example, drilling) is performed on the right side surfaces (surfaces facing the second processing machine 14B) of the three workpieces W fixed to the surface.

Similarly, the third multi-axis processing head 40C at the center of the third multi-axis processing head 40C of the third processing unit 32C faces the third jig attachment plate 38C of the work W fixed to the column 22. Processing (e.g., tapping) is performed on each front surface of the three workpieces W fixed on the lower, middle and upper stages of the workpiece attachment surface 25. The third multi-axis processing head 40C closer to the second processing machine 14B is the lower, middle and upper stages of the workpiece mounting surface 25 facing the second processing machine 14B among the workpieces W fixed to the workpiece mounting surface 25 of the column 22 The processing (for example, tapping processing) is performed on the left side surface (the surface facing the third processing machine 14C) of the three workpieces W fixed on the surface of the workpiece W.

The order of processing by the first processing unit 32A to the third processing unit 32C is, as shown in the schematic view of FIG. 3A and the flowchart of FIG. 3B, in step S1, drilling by the first processing unit 32A and third processing unit 32C. After tapping (machining 1) according to the above, in step S2, drilling (machining 2) by the second machining unit 32B is performed. It is preferable that drilling by the first processing unit 32A and tapping by the third processing unit 32C in the processing 1 be performed simultaneously. The “simultaneous” includes not only simultaneous initiation but also shifting of the start time, and also including a case where drilling and tapping partially overlap in time. In particular, it is preferable to start tapping after the processing load by drilling has reached a steady state. Thereby, the processing precision by tap processing can be raised.

Here, the processing process for the four works W1 to W4 by the processing apparatus 10 will be described with reference to Table 1 of FIG. In addition, it is defined as advancing by one step each time the column 22 of the work station 12 rotates clockwise as viewed from the top.

Further, in Table 1, “positive ○” indicates drilling in the front, and “positive」 ”indicates tapping in the front. "Right ○" indicates drilling on the right side toward the work, and "right」 "indicates tapping on the right side toward the work. "Left ○" indicates drilling on the left side toward the work, and "left ◎" indicates tapping on the left side toward the work.

First, in step 1, one work W 1 is fixed only to the lower part of the work attachment surface 25 facing the front among the work attachment surfaces 25 of the columns 22. That is, in step 1, one work W1 is input.

In the next step 2, one work W2 is fixed (dropped) on the lower side of the work attachment surface 25 facing the front. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, as shown in FIGS. 3A to 4B, after drilling by the first processing unit 32A and tapping by the third processing unit 32C, drilling by the second processing unit 32B is performed. At this stage, since only the workpiece W1 is in the machining area, drilling (lower) is performed on the front and left side surfaces of the workpiece W1, respectively.

In the next step 3, one work W3 is fixed (dropped) on the lower side of the work attachment surface 25 facing the front. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, since the workpiece W1 faces the second processing unit 32B and the workpiece W2 faces the first processing unit 32A, the first processing unit 32A and the third processing unit 32C initially perform the right side of the workpiece W1. The surface is drilled (lower), the left side is tapped (lower), and the front of the workpiece W2 is drilled (lower). Thereafter, drilling (lower stage) is performed on the front surface of the workpiece W1 and the left side surface of the workpiece W2 by the second processing unit 32B.

In the next step 4, one work W4 is fixed (dropped) on the lower side of the work attachment surface 25 facing the front. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, since the workpiece W1 faces the third processing unit 32C, the workpiece W2 faces the second processing unit 32B, and the workpiece W3 faces the first processing unit 32A, the first processing unit 32A is first The third processing unit 32C performs tapping on the front of the workpiece W1 (lower), tapping on the left side of the workpiece W2 (lower), and drilling on the right side (lower), the front of the workpiece W3 Drilling (bottom) is performed. Thereafter, the second processing unit 32B performs drilling (lower) on the right side of the workpiece W1, drilling (lower) on the front of the workpiece W2, and drilling (lower) on the left side of the workpiece W3.

In the next step 5, the workpiece W1 of the workpiece mounting surface 25 facing the front is removed from the lower stage and fixed in the middle stage. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, the workpiece W2 is opposed to the first processing unit 32A, the workpiece W3 is opposed to the second processing unit 32B, and the workpiece W2 is opposed to the third processing unit 32C. Thus, tapping (lower) is performed on the front of the workpiece W2, and drilling (lower) is performed on the right side. Further, drilling (lower) is performed on the front and right sides of the workpiece W3, and tapping (lower) is performed on the left. Further, drilling (lower stage) is performed on the front and left side surfaces of the workpiece W4.

In the next step 6, the workpiece W2 on the workpiece mounting surface 25 facing the front is removed from the lower stage and fixed in the middle stage. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, the workpiece W1 is opposite to the first processing unit 32A, the workpiece W4 is opposite to the second processing unit 32B, and the workpiece W3 is opposite to the third processing unit 32C. Thereby, drilling (middle step) is performed on the front and left side surfaces of the work W1, tapping (lower step) is performed on the front of the work W3, and drilling (lower step) is performed on the right side. Further, drilling (lower) is performed on the front and right sides of the workpiece W4, and tapping (lower) is performed on the left.

In the next step 7, the workpiece W3 of the workpiece mounting surface 25 facing the front is removed from the lower stage and fixed in the middle stage. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, the workpiece W2 is located opposite to the first processing unit 32A, the workpiece W2 is located opposite to the second processing unit 32B, and the workpiece W4 is located opposite to the third processing unit 32C. As a result, drilling (middle step) is performed on the front and right sides of the workpiece W 1 and tapping (middle step) is performed on the left side. Further, drilling (middle) is performed on the front and left side of the workpiece W2, tapping (lower) is performed on the front of the workpiece W4, and drilling (lower) is performed on the right.

In the next step 8, the workpiece W4 on the workpiece mounting surface 25 facing the front is removed from the lower stage and fixed in the middle stage. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. At this time, the workpiece W3 is positioned opposite to the first processing unit 32A, the workpiece W2 is opposed to the second processing unit 32B, and the workpiece W1 is positioned opposite to the third processing unit 32C. Thus, tapping (middle step) is performed on the front of the workpiece W1, and drilling (middle step) is performed on the right side. In addition, drilling (middle step) is performed on the front and right sides of the workpiece W2, tapping on the left side (middle) is performed, and drilling on the front and left side of the workpiece W3 (middle).

In the next step 9, the workpiece W1 on the workpiece mounting surface 25 facing the front is removed from the middle stage and fixed to the upper stage. Thereafter, the processing by the first processing unit 32A to the third processing unit 32C is performed. Thus, tapping (middle step) is performed on the front of the workpiece W2, and drilling (middle step) is performed on the right side. In addition, drilling (middle step) is performed on the front and right sides of the workpiece W3, tapping on the left side (middle) is performed, and drilling on the front and left side of the workpiece W4 (middle) is performed. The same applies to the following.

Then, the work W1 is removed in step 13, the work W2 is removed in step 14, the work W3 is removed in step 15, and the work W4 is removed in step 16.

In the above example, the processing for the four works W1 to W4 has been described, but in addition, after moving the works W1, W2, W3 and W4 from the lower stage to the middle stage in

steps

5, 6, 7 and 8, respectively, The works W5, W6, W7 and W8 may be introduced to the lower stage.

Further, after moving the works W1, W2, W3 and W4 from the middle to the upper stage in

steps

9, 10, 11 and 12, respectively, move the new works W5, W6, W7 and W8 from the lower to the middle, and then further The new works W9, W10, W11 and W12 may be introduced to the lower stage.

That is, it is possible to process five or more workpieces W by introducing a new workpiece W to the lower stage at the stage where the lower stage becomes vacant as the workpiece W moves to the middle stage or the upper stage. Here, the work W is moved from the lower stage to the middle or upper stage, but may be moved from the upper stage to the middle or lower stage. In addition, by rotating the mounting direction by 90 ° or reversing the workpiece attachment surface 25 of the workpiece W when moving, all outer surfaces of the workpiece W can be processed. At the time of movement, by dividing the processing area and the front of the processing apparatus by an in-machine shutter (not shown), it is possible to insert and dispense the work W during processing.

As shown in FIG. 2, chips and coolant from the first processing machine 14A, the second processing machine 14B and the third processing machine 14C are discharged from the first processing machine 14A and the discharge grooves M1 and M2 and the second processing It flows to the workstation 12 through the discharge groove M4 of the machine 14B and the discharge grooves M5 and M6 of the third processing machine 14C. Among the oil pans 13 of the work station 12, the discharge grooves formed around the support column 22 are formed closer to the first processing groove 14A and the first discharge groove Ma and closer to the second processing device 14B. The second discharge groove Mb and the third discharge groove Mc formed closer to the third processing machine 14C. The oil pan 13 has, for example, a rectangular shape when viewed from the top.

Then, the used coolant from the first processing machine 14A flows toward the workstation 12 through the discharge grooves M1 and M2, and the used coolant from the second processing machine 14B flows into the workstation 12 through the discharge groove M4. Flowing, the used coolant from the third processing machine 14C flows toward the workstation 12 through the discharge grooves M5 and M6. The used coolant that has flowed into the workstation 12 flows to the discharge groove M3 of the second processing machine 14B through the first discharge groove Ma, the second discharge groove Mb, and the third discharge groove Mc, and further, this discharge It flows to the coolant tank 17 through the groove M3.

Next, several modified examples of the processing apparatus 10 according to the present embodiment will be described with reference to FIGS.

The processing apparatus according to the first modification (hereinafter referred to as the first processing apparatus 10A) has substantially the same configuration as the above-described processing apparatus 10 as shown in FIGS. The difference is that the mechanism 50A and the second plate advancing and retracting mechanism 50B are included.

The first plate advancing and retracting mechanism 50A advances and retracts the first plate 54A to which the first breakage sensor 52A for detecting breakage of the first multi-axis processing head 40A is attached between the column 22 of the workstation 12 and the first processing unit 32A. Let In this case, the first plate advancing and retracting mechanism 50A may move the first plate 54A in the vertical direction or in the lateral direction. The first plate 54A is normally at, for example, an initial position, that is, a position retracted from between the support 22 and the first processing unit 32A.

The second plate advancing and retracting mechanism 50B advances and retracts the second plate 54B to which the second breakage sensor 52B for detecting breakage of the second multi-axis processing head 40B is attached between the column 22 of the workstation 12 and the second processing unit 32B. Let In this case, the second plate advancing and retracting mechanism 50B may move the second plate 54B in the vertical direction or in the lateral direction. The second plate 54B is also normally at, for example, an initial position, that is, a position retracted from between the support 22 and the second processing unit 32B.

Then, the first plate advancing and retracting mechanism 50A drives the first plate 54A at the initial position based on, for example, the input of the first closing signal Sc1 from the control device 16, and thereby between the support 22 and the first processing unit 32A. Position on Furthermore, the detection result S1 of breakage from the first breakage sensor 52A is output to the control device 16. Also, based on the input of the first open signal So1 from the control device 16, the first plate 54A is driven to return the first plate 54A to the initial position.

The second plate advancing and retracting mechanism 50B drives the second plate 54B in the initial position based on, for example, the input of the second closing signal Sc2 from the control device 16 to position the column 22 and the second processing unit 32B. Do. Furthermore, the detection result S2 of breakage from the second breakage sensor 52B is output to the control device 16. Further, based on the input of the second open signal So2 from the control device 16, the second plate 54B is driven to return the second plate 54B to the initial position.

The width of the first plate 54A is substantially the same as the width of the first rail base 28A of the first processing machine 14A, and the length of the first plate 54A is the first jig mounting plate of the first processing unit 32A. It is almost the same as the vertical length of 38A. Therefore, when the first plate 54A and the second plate 54B are in the initial positions, that is, as shown in FIG. 8, the first plate 54A and the second plate 54B are respectively formed on the front surfaces of the first processing unit 32A and the second processing unit 32B. When the second plate 54B does not exist, the processing area Z is formed by the first processing unit 32A, the second processing unit 32B, and the third processing unit 32C. Then, as shown in FIG. 9, when the first plate 54A is positioned on the front surface of the first processing unit 32A, the processing region Z (see FIG. 8) by the first processing unit 32A to the third processing unit 32C is the first plate It can be separated by 54A. That is, a new processing area Za surrounded by the first plate 54A, the second processing unit 32B, and the third processing unit 32C around the work station 12 is formed.

On the other hand, the size of the second plate 54B is substantially the same as the lateral width of the second rail base 28B of the second processing machine 14B, and the longitudinal length of the second plate 54B is the second jig of the second processing unit 32B. The longitudinal length of the mounting plate 38B is substantially the same. Therefore, as shown in FIG. 10, when the second plate 54B is positioned on the front surface of the second processing unit 32B, the processing region Z (see FIG. 8) by the first processing unit 32A to the third processing unit 32C is the second plate It can be separated by 54B. That is, a new processing area Zb surrounded by the first processing unit 32A, the second plate 54B, and the third processing unit 32C around the work station 12 is formed.

Here, the processing operation of the first processing apparatus 10A will be described with reference to the flowchart of FIG.

First, in step S101 of FIG. 11, the first plate 54A and the second plate 54B are located in the initial state, for example, above.

Thereafter, before drilling by the first processing unit 32A and tapping by the third processing unit 32C are performed, in step S102, the second plate advancing / retracting mechanism 50B lowers the second plate 54B, and the second processing unit The second plate 54B is positioned between 32B and the column 22.

Thereafter, in step S103, the workpiece W is processed by the first processing unit 32A and the third processing unit 32C. During the processing by the first processing unit 32A and the third processing unit 32C, the second movement driving means 34B brings the second multiaxial processing head 40B of the second processing unit 32B close to the second breakage sensor 52B. The second breakage sensor 52B detects breakage of the second multi-axis machining head 40B.

During drilling and tapping by the first processing unit 32A and the third processing unit 32C, in particular, chips generated by drilling scatter in the direction of the second processing unit 32B. However, scattering of chips into the second processing unit 32B is blocked by the second plate 54B. That is, it is possible to prevent the chips generated by the drilling by the first processing unit 32A from being scattered to the second processing unit 32B.

When the processing by the first processing unit 32A and the third processing unit 32C on the workpiece W is completed, the second plate advancing and retracting mechanism 50B returns the second plate 54B to the initial position in step S104. That is, the second breakage sensor 52B is returned to the original position, the second plate 54B is raised, and the second plate 54B is returned to the initial position.

Thereafter, before the drilling by the second processing unit 32B is performed, in step S105, the first plate advancing / retracting mechanism 50A lowers the first plate 54A, and the first plate 54A is moved between the first processing unit 32A and the support 22. 1 Position the plate 54A.

Thereafter, in step S106, the workpiece W is processed by the second processing unit 32B. During processing by the second processing unit 32B, the first movement driving means 34A brings the first multi-axis processing head 40A of the first processing unit 32A close to the first breakage sensor 52A. The first breakage sensor 52A detects breakage of the first multi-axis machining head 40A.

When the processing by the second processing unit 32B on the workpiece W is completed, the first plate advancing / retracting mechanism 50A returns the first plate 54A to the initial position in step S107. That is, the first breakage sensor 52A is returned to the original position, and the first plate 54A is raised to return the first plate 54A to the initial position.

During drilling by the second processing unit 32B, chips generated by drilling scatter in the direction of the first processing unit 32A. However, scattering of the chips to the first processing unit 32A is blocked by the first plate 54A. That is, it is possible to prevent the chips generated by the drilling by the second processing unit 32B from being scattered to the first processing unit 32A.

Next, the processing apparatus according to the second modification (hereinafter referred to as the second processing apparatus 10B) has substantially the same configuration as the above-described processing apparatus 10 as shown in FIG. It is characterized by the discharge structure.

Specifically, the discharge grooves M1 and M2 on both sides of the first processing machine 14A are formed in inclined grooves inclined downward toward the work station 12, respectively. Also in the second processing machine 14B, the discharge grooves M3 and M4 on both sides are respectively formed in inclined grooves inclined downward toward the work station 12. Also in the third processing machine 14C, the discharge grooves M5 and M6 on both sides are respectively formed in inclined grooves inclined downward toward the work station 12. The inclination angle of these grooves is, for example, in the range of 2 ° to 4 °.

The first discharge groove Ma and the third discharge groove Mc formed in the oil pan 13 of the work station 12 are respectively formed in inclined grooves inclined downward toward the second processing machine 14B, and are used for the second discharge The groove Mb is formed in an inclined groove inclined downward toward the first processing machine 14A. Further, the oil pan 13 has a fourth discharge groove Md and a fifth discharge groove Me on the front side. The fourth discharge groove Md is formed in an inclined groove inclined downward toward the first processing machine 14A, and the fifth discharge groove Me is an inclined groove inclined downward toward the third processing machine 14C. Is formed. In this case, the downstream end of the fourth discharge groove Md substantially coincides with the upstream end of the first discharge groove Ma, and the downstream end of the fifth discharge groove Me and the upstream end of the third discharge groove Mc are substantially equal. Match.

And in this 2nd processing apparatus 10B, the discharge port 60 is formed in the corner corresponding to the boundary of the 1st processing machine 14A and the 2nd processing machine 14B among the oil pans 13 of the workstation 12. At a lower portion of the discharge port 60, a guide portion 61 (a weir, a conduit, etc.) for guiding the used coolant dropped through the discharge port 60 to the coolant tank 17 is formed.

Therefore, the used coolant on the first discharge groove Ma or on the second discharge groove Mb flows to the discharge port 60 through the first discharge groove Ma or the second discharge groove Mb, respectively. The used coolant on the third discharge groove Mc flows to the discharge port 60 through the third discharge groove Mc and the second discharge groove Mb. Similarly, the used coolant on the fourth discharge groove Md flows to the discharge port 60 through the fourth discharge groove Md and the first discharge groove Ma, and the used coolant on the fifth discharge groove Me is 5) Flow to the discharge port 60 through the discharge groove Me, the third discharge groove Mc and the second discharge groove Mb.

The magnitude relationship of the inclination angles of the various discharge grooves M1 to M6 and Ma to Me described above is as follows. This magnitude relationship is merely an example.

First, let the inclination angles of the discharge grooves M1 and M2 on both sides of the first processing machine 14A be θ11 and θ12. Let the inclination angles of the discharge grooves M3 and M4 on both sides of the second processing machine 14B be θ21 and θ22. Let the inclination angles of the discharge grooves M5 and M6 on both sides of the third processing machine 14C be θ31 and θ32. The inclination angle of the first ejection groove Ma of the oil pan 13 is θa, the inclination angle of the second ejection groove Mb is θb, the inclination angle of the third ejection groove Mc is θc, and the inclination angle of the fourth ejection groove Md is Let θd be the inclination angle of the fifth discharge groove Me be θe.

Θ11, θ12, θ21, θ22, θ31 and θ32 are almost the same, for example, in the range of 2 ° to 4 °.

Θa> θc> θb, θb is larger than θ11, θ12 and the like. For example, the range of 3 ° to 6 ° may be mentioned as θa, θb and θc. θd is approximately the same as θa, and θe is approximately the same as θc.

The magnitudes of these inclination angles are merely an example, and may be appropriately set according to the discharge flow rate of the used coolant in the first processing machine 14A, the second processing machine 14B, and the third processing machine 14C.

Furthermore, in the second processing device 10B, since the first processing machine 14A and the second processing machine 14B only perform drilling, the discharge flow rate of the used coolant is higher than that of the third processing machine 14C. Therefore, as the planar shape of the discharge port 60, for example, a rectangular shape in which the processing direction by the first processing machine 14A is a longitudinal direction is used. Therefore, the used coolant from the first processing machine 14A can be efficiently flowed to the discharge port 60.

Further, the number of drilling heads for drilling the work W on the first discharge groove Ma is higher than the number of heads for drilling the work W on the second discharge groove Mb. When there are many, it is preferable to set it as inclination-angle (theta) a> (theta) b.

Here, as shown in FIG. 3A, for example, as shown in FIG. 3A, the number of drilling heads for drilling the work W on the first discharge groove Ma is the first multiple of the first processing unit 32A in the center This is the total of the number of drilling heads in the axial processing head 40A and the number of drilling heads in the second multi-axis processing head 40B closer to the first processing unit 32A in the second processing unit 32B.

Further, the number of drilling heads for drilling the work W on the second discharge groove Mb is, for example, as shown in FIG. 3A, a second multi-axis at the center of the second processing unit 32B. It is the total of the number of heads for drilling in the processing head 40B and the number of heads for drilling in the first multi-axis processing head 40A closer to the second processing unit 32B in the first processing unit 32A.

As described above, the number of heads drilling on the work W on the first discharge groove Ma is larger than the number of heads drilling on the work W on the second discharge groove Mb. Thus, the amount of chips and the like to the first discharge groove Ma is larger than the amount of chips and the like to the second discharge groove Mb. Therefore, by making the inclination angle θa of the first discharge groove Ma larger than the inclination angle θb of the second discharge groove Mb, the discharge efficiency of the used coolant having a large amount of chips etc. becomes high, and the oil pan 13 The amount of chips and the like remaining can be reduced.

As mentioned above, although this invention was demonstrated using the suitable embodiment, the technical scope of this invention is not limited to the description range of said embodiment. It is apparent to those skilled in the art that various changes or modifications can be added to the above-described embodiment. It is also apparent from the scope of the claims that the embodiments added with such alterations or improvements can be included in the technical scope of the present invention. Further, reference numerals in parentheses in the appended claims are added in accordance with the reference numerals in the attached drawings for the purpose of facilitating the understanding of the present invention, and the present invention is limited to the elements to which the reference numerals are attached. Not be interpreted.

Claims

A post (22) having a plurality of work mounting surfaces (25);
At least two processing units (32A, 32B) for drilling a workpiece (W) fixed to the workpiece mounting surface (25);
At least one processing unit (32C) for tapping a work (W) fixed to the work mounting surface (25);
An oil pan (13) for receiving at least the used coolant from the processing unit;
And a coolant tank (17)
The oil pan (13) is characterized by having a discharge port (60) for discharging the used coolant to the coolant tank (17) between the two processing units (32A, 32B) for drilling. Processing device (10B).
In the processing apparatus (10B) according to claim 1,
The oil pan (13) has a rectangular shape when viewed from the top,
The discharge port (60) is formed at the corresponding corner between the two processing units (32A, 32B) to be drilled among the four corners of the oil pan (13). Device (10B).
The processing apparatus (10B) according to claim 1 or 2,
The processing device (10B) is characterized in that the planar shape of the discharge port (60) has a rectangular shape in which the processing direction by the one processing unit (32A) is a longitudinal direction.
The processing apparatus (10B) according to any one of claims 1 to 3
The oil pan (13) is formed on a first discharge groove (Ma) formed closer to one of the processing units (32A) to be drilled and on the other side of the processing unit (32B) to be drilled The second discharge groove (Mb), and the third discharge groove (Mc) formed closer to the processing unit (32C) that performs tapping,
The first discharge groove (Ma) and the third discharge groove (Mc) are respectively inclined downward toward the other processing unit (32B),
A processing apparatus (10B) characterized in that the second discharge groove (Mb) is inclined downward toward the one processing unit (32A).
In the processing apparatus (10B) according to claim 4,
The number of drilling heads for drilling the work (W) on the first discharge groove (Ma) is the number of heads for drilling on the work (W) on the second discharge groove (Mb) More than the number of drilling heads used to drill
When an inclination angle of the first discharge groove (Ma) is θa and an inclination angle of the second discharge groove (Mb) is θb,
θa> θb
The processing apparatus (10B) characterized by being.