JP4204040B2 - Table two-way moving device and processing device provided with the device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-way moving device that moves and guides a table in two directions, and a processing device that includes this device and performs processing such as drilling a printed circuit board and external processing of a printed circuit board.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a printed circuit board contouring machine, which is an example of a processing apparatus, moves a table that holds a printed circuit board in the front-rear direction and a plurality of main shafts that hold tools in the left-right direction, respectively, and is a printed circuit board that is a workpiece It is designed to process the outer shape of.
[0003]
In addition, for example, in an electric discharge machine, an electrode (tool) having a large mass is fixed, and the workpiece is placed on a so-called XY table that can move horizontally in the X axis direction and the Y axis direction orthogonal to each other. Then, the workpiece is subjected to electric discharge machining by moving the XY table.
[0004]
[Problems to be solved by the invention]
By the way, in a printed circuit board outline processing machine, in order to shorten the processing time, it is effective to increase the cutting force by increasing the capacity of the spindle for rotating the tool.
[0005]
However, a spindle with a large capacity has a large mass. Further, in order to maintain the machining quality, it is necessary to increase the rigidity of the spindle holding portion and the table portion that receive the cutting reaction force, and the mass of the spindle holding portion and the table tends to increase. As a result, the entire apparatus has become large.
[0006]
Further, the conventional XY table has a track of a linear guide device composed of a bearing and a track arranged in the Y-axis direction, and the bearing is fixed to the Y table to support the Y table so as to be movable in the Y-axis direction. The track is arranged in the X-axis direction above, the bearing is fixed to the X-table, and the X-table is supported so as to be movable in the X-axis direction. For this reason, the mass of the entire XY table tends to be large.
[0007]
Incidentally, a two-way guide device C shown in FIG. 7 is known. The two-way guide device C includes a bearing 1 formed up and down so that two guide portions 1a and 1b are perpendicular to each other, and a second track 3 that engages the guide portion 1b. It can be moved in two directions, a direction perpendicular to the first track 2 engaged with the guide portion 1a and a direction of the second track 3 itself.
[0008]
As shown in FIG. 7, such a two-way guide device C arranges the first track 2 and the second track 3 in a cross beam shape, fixes the first track 2 and is not shown in the second track 3. When the table is fixed, it is not necessary to provide a member corresponding to the Y table in the conventional XY table, so that the XY table is simple and lightweight.
[0009]
However, since the conventional two-way guide device C shown in FIG. 7 has a minute gap between the guide portion and the track, it is difficult to improve the positioning accuracy when the table is moved.
[0010]
An object of the present invention is to solve the problems in the prior art described above, and to provide a two-way moving device that can reduce the size of the entire device and is excellent in positioning accuracy.
[0011]
An object of the present invention is to provide a machining apparatus that includes the above-described two-way movement device that is excellent in positioning accuracy and has improved machining accuracy.
[0012]
[Means for Solving the Problems]
According to the first aspect of the present invention, a plurality of first tracks that are parallel to each other and a first guide portion and a second guide portion that are orthogonal to each other are formed, and the first guide portion can be moved to the first track. A plurality of moving members provided on the movable member, and supported by the plurality of moving members via the second guide portion of the moving member and movable in a direction orthogonal to the first track, and an article is placed thereon. A plurality of second orbits parallel to each other that support the table to be placed, an integration means for integrating the moving members by aligning the directions of the second guiding portions, and the first guiding portions of the moving members Adjusting means for adjusting the mounting position of the moving member with respect to the integration means with respect to the first track, the adjustment means being provided in the integration means. a plurality of blocks, the moving and the blocks The axis between the wood and the first track and perpendicular directions, and a plurality of bolts screwed into one of said moving member and said block, said bolt through said block A two-way moving device for a table, characterized in that an attachment position of the moving member with respect to the integrating means is adjusted .
[0017]
The invention according to claim 2 comprises processing means for processing an article placed on the table, and a two-way moving device for the table according to claim 1 for moving the table in two directions. This is a featured processing device.
[0018]
[Action]
The two-way moving device of the present invention can easily improve the positioning accuracy when the table is moved, and the mass of the moving part is reduced, so that the table can be moved at high speed.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a two-way moving device according to an embodiment of the present invention and a printed board outer shape processing machine which is an example of a processing device will be described with reference to the drawings.
[0020]
FIG. 1 is an external perspective view of a printed board outer shape processing machine which is an example of a processing apparatus according to an embodiment of the present invention. FIG. 2 is a plan view of a table driving device which is an example of the two-way moving device of the embodiment of the present invention incorporated in the printed circuit board outline processing machine of FIG. FIG. 3 is an enlarged view of a portion indicated by an arrow A in FIG. 4 is a view of FIG. 3 viewed from the direction of arrow B.
[0021]
In FIG. 1, the table 10 in the printed board outer shape processing machine 4 can be freely moved on the bed 12 in the arrow X direction and the arrow Y direction by a table driving device 11. The printed circuit board 13 is fixed on the table 10.
[0022]
The cross rail 14 is fixed to the bed 12 across the table 10. Six Z-axis guide rails 15 are fixed to the cross rail 14 in the arrow Z direction (vertical direction). A Z-axis slider 16 is movably engaged with each Z-axis guide rail 15. The saddle 17 is fixed to the Z-axis slider 16. The Z-axis coupling case 18 is fixed to the cross rail 14. The Z-axis ball screw 19 is supported by a Z-axis coupling case 18 and is rotated by a Z-axis motor 20 fixed to the Z-axis coupling case 18. The Z-axis nut 21 is fixed to the saddle 17 and is engaged with the Z-axis ball screw 19. As a result, when the Z-axis motor 20 is rotated, the saddle 17 moves in the Z-axis direction. The arrows X, Y, and Z are directed in directions orthogonal to each other.
[0023]
The spring 22 disposed between the cross rail 14 and the saddle 17 is supported at the lower end by the cross rail 14, and the upper end contacts the saddle 17 to prevent the saddle 17 from falling on the table 10.
[0024]
The housing 23 is fixed to the saddle 17 and supports a spindle 24 holding a tool 25 at the tip. The housing 23, the spindle 24, the tool 25, and the like constitute an example of processing means.
[0025]
Next, the table driving device 11 will be described with reference to FIGS.
[0026]
The bed 12 has four rail-like first tracks 2 fixed in parallel with each other in the direction of the arrow X. Bearings 1, which are two moving members, are engaged with the track 2. In the bearing 1, two guide portions 1a and 1b, which are a first guide portion and a second guide portion, are formed vertically so that their directions are perpendicular to each other. As shown in FIG. 4, one side face M of the bearing 1 is formed so as to be parallel to the guide portion 1 b and have a predetermined distance L from the axis of the track 3.
[0027]
As shown in FIGS. 2 and 4, the guide plate 30 includes flange portions 30 a on both sides, and has a T-shaped cross section. Surfaces N formed on both sides of the guide plate 30 are parallel to each other. As shown in FIG. 3, the guide plate 30 is formed with an insertion hole 32 for inserting the bolt 31 and a through hole 33 through which the bolt 31 passes. The bearing 1 and the guide plate 30 are fixed to each other by bolts 31 with the surfaces M and N abutting against each other.
[0028]
As a result, all the bearings 1 are connected by the guide plate 30 so that the directions of the guide portions 1a and 1b are aligned. When the bearings 1 are engaged with the track 3 as the two rail-shaped second tracks , the track 1 2 and the track 3 are positioned naturally in a direction perpendicular to each other. A table 10 is fixed to the track 3. The guide plate 30 is an example of an integration unit that integrates the guide portions 1a and 1b of the eight bearings 1 in the same direction.
[0029]
In this embodiment, since the guide plate 30 is provided with the flange portion 30a, when the bolt 31 is tightened by placing the lower surface K of the flange portion 30a on the upper surface of the bearing 1, as shown in FIG. No special means for holding 30 is required.
[0030]
As shown in FIG. 3, blocks 50 are fixed on the guide plates 30 on both sides of the bearing 1. The bolt 51 is positioned by being screwed into a screw hole 26 provided in the bearing 1 and having an end abutting against the block 50 .
[0031]
As shown in FIG. 5, an X-axis support 34 and an X-axis coupling case 35 are fixed on the bed 12. When the X-axis ball screw 36 is engaged with a nut 64 fixed to the guide plate 30, is rotatably supported by the X-axis support 34 and the X-axis coupling case 35, and is driven to rotate by the X-axis motor 37. The table 10 can be moved in the arrow X direction.
[0032]
As shown in FIG. 5, a Y-axis support 40 and a Y-axis coupling case 41 are fixed on the guide plate 30. The Y-axis ball screw 42 engages with a nut 43, is rotatably supported by a Y-axis support 40 and a Y-axis coupling case 41, and is driven to rotate by a Y-axis motor 44. Therefore, when the nut 43 is fixed to the table 10 together with the track 3, the Y-axis ball screw 42 can move the table 10 in the Y direction by the rotation of the Y-axis motor 44.
[0033]
The configuration of the Y-axis ball screw 42, the nut 43, and the Y-axis motor 44 is an example of a driving unit.
[0034]
Next, adjustment of the position of the bearing 1 will be described with reference to FIGS.
[0035]
The trajectory 2 usually has minute undulations (several μm) in the axial direction. For this reason, for example, when the guide plate 30 is moved in the arrow X direction, the guide plate 30 does not move straight, but moves in the arrow Y direction according to the undulation. Therefore, for example, when the swell of the track 2A shown in FIG. 5 is 2α, the other bolt 51 is rotated with the one bolt 51 shown in FIG. 3 loosened, and the bearing 1 is moved in the direction of the arrow in FIG. The bearing 1, that is, the axis of the guide portion 1 a is moved by α.
[0036]
Then, after the positioning of the bearing 1 is completed, one bolt is rotated, the end of one bolt is brought into contact with the block 50, and the other bolt is prevented from loosening.
[0037]
And by performing said adjustment with respect to all the bearings 1, the positioning accuracy of the table 10 at the time of a movement can be made excellent. Therefore, the configuration of the block 50 and the bolt 51 is an example of an adjusting unit that adjusts the mounting position of the bearing 1 with respect to the guide plate 30 with respect to the track 2.
[0038]
Next, a table driving apparatus according to another embodiment will be described with reference to FIG.
[0039]
FIG. 6 is a plan view of a table driving device 53 according to another embodiment of the present invention. The same parts as those of the table driving device 11 shown in FIGS. The description of is omitted.
[0040]
X-axis tie bars 60, 61, and 62, which are plate-like connecting members, connect the bearings 1 on the same track 2 respectively. A Y-axis connection bar 63 that is a plate-like connection member connects the X-axis tie bars 60, 61, and 62. A nut 64 that is screwed into the X-axis ball screw 36 is fixed to the Y-axis coupling bar 63.
[0041]
The configuration of the X-axis tie bars 60, 61, 62 and the Y-axis connecting bar 63 is an example of an integration unit that aligns and integrates the directions of the guide portions 1a, 1b of the eight bearings 1.
[0042]
The Y-axis support 40 is fixed to the X-axis tie bar 61, and the Y-axis coupling case 41 and the Y-axis motor 44 are fixed to the X-axis tie bar 62, respectively.
[0043]
In the above embodiment, the bearings 1 on the same track 2 are connected by the X-axis tie bars 60, 61, 62, and the X-axis tie bars 60, 61, 62 are connected by the Y-axis support 63. However, the bearings 1 supporting the same track 3 may be connected to each other by a Y-axis support, and the plurality of Y-axis supports may be connected by at least one X-axis diver. In this case, the Y-axis support becomes a connecting member, and the X-axis diver becomes a connecting member.
[0044]
In the other embodiment described above, the guide plate 30 in FIG. 2 is disassembled into a plurality of tie bars, and the function is substantially the same, but the mass can be further reduced as compared with the above case. it can.
[0045]
The bearing 1 described above straddles the track 2 and receives the track 3, but a groove is formed in the track, and a protrusion formed on the bearing is engaged with the groove so that the bearing is used as the track. You may be able to move along.
[0046]
【The invention's effect】
As described above, the two-way moving device of the present invention is configured so that the moving members are integrated by aligning the directions of the first guide portions and the second guide portions by the integration means. The entire apparatus can be reduced in weight and size, and the positioning accuracy of the first track and the second track can be easily improved.
[0047]
Moreover, in the two-way moving device of the present invention, when the integration means is a guide plate in which a pair of mounting surfaces to which the moving member can be attached are formed on both sides in parallel to each other, the assembly of the device is facilitated. The positions of the first track and the second track can be easily determined, and the positioning accuracy can be easily improved.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a printed board outer shape processing machine which is an example of a processing apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view of a table driving device which is an example of a two-way moving device according to an embodiment of the present invention incorporated in the printed circuit board outline processing machine of FIG. 1;
3 is an enlarged view of a portion indicated by an arrow A in FIG.
4 is a view of FIG. 3 viewed from the direction of arrow B. FIG.
FIG. 5 is a diagram for explaining an operation of adjusting the direction of a bearing with a bolt.
FIG. 6 is a plan view of a table driving apparatus according to another embodiment of the present invention.
FIG. 7 is a perspective view of a conventional two-way guide device.
[Explanation of symbols]
C Two-way guide device M Mounting surface N Surface 1 Bearing (moving member)
1a Guide (first guide)
1b Guide part (second guide part)
2 orbit (first orbit)
3 orbit (second orbit)
4 Processing device 10 Table 11 Table driving device (two-way moving device)
12 Bed 13 Printed circuit board (work)
19 Z-axis ball screw 20 Z-axis motor 21 Z-axis nut 23 Housing (processing means)
24 Spindle (processing means)
25 Tools (processing means)
26 Screw hole 30 Guide plate 30a Flange 31 Bolt 32 Bolt insertion hole 33 Through hole 34 X-axis support 35 X-axis coupling case 36 X-axis ball screw 37 X-axis motor 40 Y-axis support 41 Y-axis coupling case 42 Y-axis Ball screw (drive means)
43 Nut (drive means)
44 Y-axis motor (drive means)
50 blocks (adjustment means)
51 bolts (adjustment means)
53 Table drive device (two-way moving device)
60 X-axis diver (connecting member)
61 X-axis diver (connecting member)
62 X-axis diver (connection member)
63 Y-axis connection bar (connection member)
64 nuts

Claims (2)

A plurality of first orbits parallel to each other;
A plurality of moving members provided with a first guide part and a second guide part orthogonal to each other and movably provided on the first track via the first guide part;
It is supported by the plurality of moving members via the second guide portion of the moving member, is movable in a direction orthogonal to the first track, and is parallel to each other to support a table on which an article is placed. A plurality of second trajectories;
An integration means for aligning the directions of the second guide portions and integrating the moving members;
Adjusting means disposed on both sides of the moving member in a direction orthogonal to the first guide portion and adjusting the mounting position of the moving member with respect to the integrating means with respect to the first track,
The adjusting means includes a plurality of blocks provided in the integrating means, and an axis line between the blocks and the moving member in a direction perpendicular to the first track, and the moving member and the block are either A plurality of bolts threaded on one side,
The bolt adjusts the mounting position of the moving member with respect to the integration means via the block.
A two-way moving device for a table characterized by the above. Processing means for processing the article placed on the table;
The table two-way moving device according to claim 1 , wherein the table is moved in two directions;
A processing apparatus comprising:

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