JPS6150727A - Xy table device and operating machine with said device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to operating machines such as XY work tables and insertion supports for inserting components into circuit boards.
The operating machine has an XY table for positioning the workpiece underneath the operating machine. The invention is particularly concerned with achieving a machine of compact dimensions and simple construction.

(Prior art) Widely used type of assembly 1F! ! The machine comprises a coordinately movable XY table having a manipulation machine, such as an insert, positioned above the surface of the table. This type of machine is used, for example, to insert terminal posts or other components into a circuit board in a predetermined position. The XY table is moved according to instructions from a computer program or microprocessor to locate the required position for the lower part of the operating machine.

After this, the machine is operated to propel the part into the workpiece.

The conventional XY table apparatus used for such GL machines consists of a fixed base frame with one screw (assumed to be a Y-axis screw), and a fixed base frame with one screw (assumed to be a Y-axis screw), and a Equipped with a drive motor for the shaft screw. A Y-axis table is installed above the Y-axis screw and has a nut on its underside, which nut is screwed onto the Y-axis screw. Also, other Y like rail
An axis kite is also provided on the fixed base frame.

When the Y-axis motor is rotated, the Y-axis table is moved by the Y-axis screw, which rotates but does not move linearly. An X-axis screw and an X-axis drive motor are supported on the upper surface of the Y-axis table, and the X-axis table is carried on a guide rail above the X-axis screw. An X@II nut is threaded onto the X-axis screw so that rotation of the X-axis screw causes movement of the X-axis table in the X direction. It is possible to operate both motors at once to produce a diagonal movement of the upper surface of the xIIIll table.

Although XY assembly machines of the type described above are generally satisfactory, they can be relatively expensive for the type of work they involve, such as when components are inserted into relatively small circuit boards. Available machines are therefore often over-engineered for the purposes for which they are used. Therefore, currently available enclosures occupy relatively large amounts of floor space and are relatively expensive, taking into account the nature of their work.

OBJECTS OF THE INVENTION The object of the present invention is to achieve a relatively compact XY cutting machine of simple construction, particularly suitable for tasks such as inserting components into circuit boards.

(Structure of the Invention) According to one feature of the present invention, the present invention has a type of
The Y table device consists of an X-axis screw, an X-chop nut, and an Xtt.
Drive motor, Y-axis screw, Y 'III seat, Y
an axial drive motor; and a support movable coordinately on the assembly movable in the X and Y directions in accordance with rotation of the X-axis drive motor and the Y-axis drive motor. The XY table assembly of the present invention is characterized in that the Y-axis l screw is supported on a stationary base frame so as not to rotate or move.

A Y screw is mounted on the base frame so as to move parallel to the Y axis screw.
An axle carriage is supported, and the Y-axis nut is rotatably mounted on the Y-axis carriage and threaded onto the Y-axis screw. An X-axis frame is slidably supported on the Y-axis carriage, the X-axis screw is supported non-rotatably on the x-axis frame, and the xlrIlb nut is mounted on the Y@l! It is rotatably mounted on a carrier. The X-axis drive motor and the Y-axis drive motor are both mounted on the Y-axis carriage, and each
It is connected to the shaft screw and the Y'T'llll screw. The coordinately movable support or table is mounted on the X-axis frame so that rotation of the Y-axis nut causes movement of the Y-axis carriage and the X-axis frame in the Y direction. Rotation of the X-axis nut causes linear movement of the X-axis screw and the X-axis frame in the X direction. This causes the movable support to be moved in the X and Y directions.

According to an embodiment of the present invention, the invention includes a manipulation machine, such as an inserter, for inserting a component into a workpiece, such as a circuit board, supported on the XY table. This X Y machine 4f4 is as described above. According to this feature, the X-axis frame is slidably supported on the Y-axis carriage and has an extension, the extension projecting beyond one end of the Y-axis screw. do. The XY table is then carried by this extension.

According to at least another embodiment, an anvil is provided below said XY table, said anvil having a working position thereof in a supporting relationship with respect to said workpiece, and that it is located below said workpiece and said support. is movable between its inactive position located below the surface and therefore said
The Y table can be moved coordinately. The anvil is moved from its inactive position to its active position when the XY table is at rest and the operating pan performs insertion or other operations.

(Example) The present invention will be described below based on embodiments shown in the drawings.

The operating machine 2 according to the invention comprises an insert etc. accommodated by a housing 12, said housing 12 being located above the support surface 10 of the XY table 8. In this disclosed embodiment, the workpiece
6 is in the form of a PC (polycarbonate) board, and the insertion is intended to insert a terminal post carried in a plastic carrying strip 4 into the circuit board 6. It may be of the type given.

The entire apparatus is supported on a separate stand 14 having an upper surface 16 (FIG. 2), above which the X
Y ljI 47I\ and the XY table are located.

The XY mechanism 18 includes a Y-axis screw 20, which is located between a plurality of Y-axis guide rods 22. A first end 24 of the Y-axis screw and a corresponding end of each guide rond 22 are supported within a first vertical frame plate 26 that projects from the surface 16. The second end 28 of the Y-axis screw and the corresponding end of each guide rod 22 are similarly secured within the second frame plate 30.

Said frame plate 26.30 and said guide rod? 2 serves as a stationary base frame 29 for the Y-axis carriage 32, which supports the ends 24 and 2 of the Y-axis screw.
It is possible to move in the Y direction between 8 and 8. The Y-axis screw extends freely through the carriage 32, and the carriage is slidable on and guided by the rod 22.

A Y-axis nut 34 is supported on the Y-axis screw 20 and the Y-axis carriage 3? is rotatably mounted within the recess of the The manner in which the nut is installed in the carriage is described below in connection with FIG. 4 and in connection with the X-axis nut 50. Axis motor 38
This Y-axis motor; It will be apparent that if the axle nut 34 is rotated relative to the screw (which cannot be rotated), the carriage will move in the Y direction.

XlTll1l screws 44 extend freely through the carriage 32, and a plurality of X@II guides 46 extend slidably through the carriage. A plurality of X-axis frame plates 48 are connected to the ends of the guide rods 46 and the screws 44 such that the guide rods 46 and the frame plates/18 are rotated relative to the carriage 32 by the XIN1 nuts 50. can be moved. The oak 1~
50 has an integral sleeve 52 (FIG. 4), and sleeve 5? Is the carrier 3? protrudes into the recess of and is rotatably supported by a ball bearing assembly 54. The nut 50 is connected to the X-axis motor 58 by a belt 56, and the X-axis motor 58 is connected to the carriage 3 by a support plate or mounting bracket 60. is supported below. Therefore, the rotation of the motor 58 moves the X-axis screw 44 to the carriage 3? against X
It will be moved in the direction.

As shown in FIGS. 2 and 3, the lateral frame plate 62
extends between the X-axis frame plates 48, and each end thereof is fixed to each frame plate.

The XY table 64 is located in front of or to the left of its bracket, as seen in FIG.
It is supported by The XY table 64 has ears 66
and through these ears 66 the rods 8 extend, and each end of the rod is pivotally mounted within an outer end portion 70 of each frame plate 48. There is. Multiple levers or arms 7? Keyed to each end of the rod 68 are springs 74, which bias the rod clockwise as seen in FIG. The precise position of the rod 68 is
defined by a plurality of adjustable stops 77 threaded through said plate 62 and abutting each arm 76, each arm 76 being keyed;
The stopper screw 77, which is fixed to the rod 68 or by other methods, is adjusted as follows. That is, the XY table 64 is adjusted so that it stands vertically in a horizontal plane, and its surface extends at right angles to a tool 90 on an insertion tray 88, which will be described later.

The XY table 640 is rotatably mounted for the following reason. That is, if the force on the table is h
o If you can, use the same table (or the surface 16 of the base frame)
This is so that it swings only downward, drawing a very slight arc, until it comes into contact with . This arrangement thus avoids damage to the XY table in the event of such forces being applied thereto.

When the assembly operation of the pin insertion operation is performed by the tool 90 on the end of the ram 88 of the handling machine 2, it is desirable to provide a support for the workpiece. As shown in FIG. 3, an anvil 80 is provided which is located directly below said tool 90 and which, under the action of a cam 84, extends upwardly from the position shown in FIG. The cam 8 can be moved
4 engages a roller 82 on the lower end of the anvil. The cam 84 is moved to the left from the position shown by a pneumatic piston cylinder 86. Since the XY table is in the form of an open rectangular frame, the anvil does not interfere with the XY movement of the table as long as it is in its lower or inactive position in FIG.

According to known design principles for XY tables, said motor 38.58 is preferably a printed circuit motor or a stepper motor, controlled by a microprocessor or similar thinking source. Accordingly, the microprocessor is programmed to sequentially present different workpiece positions to the tool 90 so that each part can be assembled to the circuit board at those positions.

To explain the operation, the motors 3g and 58 are connected to the Y
The shaft nut 34 and the X-axis nut 50 are excited to rotate by the following sides. That is, the carriage is energized to rotate by a distance which moves the desired portion of the workpiece to position the working region 1 directly below the tool 90 of the ram 88. Since both of the motors are carried by the carriage 32, both of the nuts can be rotated at the same time, thus allowing the carriage to move in the Y direction, while the X-axis frame, and therefore The XY table C4 can be moved in the X direction 10-.

In the above description and in the claims, the screw 20 supported on the base frame and to which the carriage 32 is attached can be arbitrarily considered to be a YIlilb screw. The reason for this is that if the observer stands in front of the track area, it will actually be on the Y' axis l.
Because it's a screw. This same screw would be the X-axis screw if an observer were to look at the machine from the side. The assumptions made herein are adopted for purposes of clarity and simplicity, and they are not intended to limit the scope of the claims. In other words, the observer of the machine according to the invention can always position himself such that the screw 20 supported in a static state is a Y-axis screw.

(Effects of the Invention) The above-mentioned type of XY table device and XY operation machine are different from the conventional table movement 811 in terms of dimensions, volume of parts, and manufacturing costs. It offers several advantages over i4 and operating devices. The maximum active area, ie, the maximum amount of area in which the tool 90 can be located, is determined by the length of the X-axis screw and the Y-axis screw minus the dimension of the Y-axis carriage. In other words, the table 64 can be moved a distance equal to the length of the Y-axis screw 20 minus the width of the carriage 32, as measured along the Y-axis l. Similarly, the table 6
4 can be moved in the X-axis direction by a distance equal to the length of the X-axis screw 44 minus the length of the carriage 32 when measured in the X-axis direction. The YIIIiI guide 22 and the X-axis guide 46 are connected to the corresponding screw 2.
It does not need to be longer than 0°44. The volume of the machine is significantly reduced compared to conventional XY tables.

The reason is that it has separate supports for the X-axis and Y-axis screws (whichever screw is located above the machine and which screw is supported on a fixed support). This is because there is no need.

[Brief explanation of drawings]

, FIG. 1 is a perspective view of an operating machine according to the invention, which provides an insertion device for inserting a component into a circuit board; FIG. 2 shows an XY actuation mechanism for the machine of FIG. 1; , a cutaway perspective view showing a method of connecting an XY table to the operating mechanism; FIG. 3 is a side view of the operating mechanism;
4 is a side elevational view showing portions of the track area and the workpiece support anvil in its inactive position; FIG. 4 is a partial cross-sectional view taken along line 4--4 of FIG. arrow 4-
FIG. 4 is a cutaway side view taken in the direction of FIG. 2... Operating machine 4... Possession strip 6
...Circuit board 8...XY table 12.
...Housing 14...Machine base 16...
Upper surface 18...XY■ Structure 20...Y@
It screw? ? ...Y-axis guide rod 24...
・End part 26...first vertical plate 28...
End portion 29... Stationary base frame 30... Frame
Board 3? ...Y-axis carriage 34...Y-axis nut 36...Belt 38...Y-axis motor 40...Plate 42...Bracket
44...X@ll screw 46...X-axis guide (guide iron) 48...X-axis frame plate 50...X-axis nut 5
2...Sleeve 54...Ball bearing assembly 56...Belt 58...X-axis motor 6
0...Bracket 62...Plate 64...X
Y table 66...ear 68...rod
70...Outer end portion 72...Arm
74... Honey 76... Arm 7
7...Stopper screw 80...Iron floor
82...Roller 84...Cam

Claims (10)

[Claims] (1) X-axis screw (44), X-axis nut (50),
an axis drive motor (58), a Y-axis screw (20), a Y-axis nut (34), a Y-axis drive motor (38), the X-axis drive motor (58), and the Y-axis drive motor (38).
In an XY table device of the type with a coordinately movable support (8) on the assembly that can be moved in the X and Y directions depending on the rotation of the A Y-axis carriage (32) is supported on the base frame (29) so as not to rotate or move, and is mounted on the Y-axis carriage (32).
The base frame (29) is moved parallel to the shaft screw (20).
), the Y-axis nut (34) is rotatably mounted on the Y-axis carriage (32), and the Y-axis nut (34) is rotatably mounted on the Y-axis frame (4).
8) is slidably supported on the Y-axis carriage (32), the X-axis screw (44) is supported so as not to rotate on the X-axis frame (48), and the X-axis nut (50) is supported so as not to rotate on the X-axis frame (48). ) is rotatably mounted on the Y-axis carriage (32) and connects the X-axis drive motor (58) and the Y-axis drive motor (3
8) is mounted on the Y-axis carriage (32) and connected to the X-axis screw (44) and the Y-axis screw (20), respectively, and the coordinately movable support ( 8) is mounted on the X-axis frame (48), so that the rotation of the Y-axis nut (34) is
Y of the Y-axis carriage (32) and the X-axis frame (48)
direction, and the X-axis nut (5
0) causes a movement of the X-axis screw (44) and the X-axis frame (48) in the X direction, whereby the movable support (8) is moved in the X and Y directions. An XY table device characterized by: (2) The X-axis screw (44) and the Y-axis screw (20)
) extends through the Y-axis carriage (32). (3) The stationary base frame (29) has a stationary Y-axis support guide (22), and the Y-axis
A shaft carrier (32) is drivably supported, and the X-axis frame (
48) supported on at least one X axis (
46), and this guide (46) is connected to the Y-axis carriage (
32) The XY table device according to claim 2, wherein the XY table device is slidably supported thereon. (4) A pair of Y-axis support guides (22) and a pair of guides (46) supported on the X-axis are provided, and the Y-axis screw (20) and the X-axis screw (44) are respectively connected to the Located between each Y-axis support guide (22) and each guide supported on the X-axis, and extending parallel to the Y-axis support guide (22) and the guide supported on the X-axis, respectively. An XY table device according to claim 3, characterized in that: (5) The X-axis frame (48) has an extension part (64, 66), and the extension part extends from the X-axis frame to the Y-axis screw (20).
and said coordinately movable support (8
) is attached to the extension portion, the XY table device according to claim 1 or claim 5. (6) an operating machine (2) such as an insertion machine (12) for inserting a component into a workpiece such as a circuit board (6);
), comprising an XY table (8), said XY table (8) having a support surface (10) for supporting said workpiece (6) and said XY table ( 8) has an XY drive device for
This XY drive device includes an X-axis screw (44), an X-axis nut (50) on this X-axis screw, and an X-axis drive motor (58).
, a Y-axis screw (20), a Y-axis nut (34) on the Y-axis screw, and a Y-axis drive motor (38),
A Y table (8) is connected to the X-axis drive motor and the Y-axis drive motor.
In an operating machine capable of moving in the X and Y directions according to the rotation of a shaft drive motor and comprising an operating head mounted above said support surface (10), said Y-axis screw (20) is supported on a stationary base frame (29) so as not to rotate or move, and a Y-axis carriage (32) is connected to the Y-axis from the first end of the Y-axis screw (20).
The Y-axis screw (20) up to the second end of the axis screw (20).
is supported on the base frame so as to move parallel to the Y
The shaft nut (34) is rotatably mounted on the Y-axis carriage (32), and the X-axis frame (48) is mounted on the Y-axis carriage (32).
32) slidably supported on said X-axis screw (44);
is supported so as not to rotate by the X-axis frame (48), and the X-axis nut (50) is supported by the Y-axis carriage (32).
rotatably supported on said Y-axis drive motor (38);
and the X-axis drive motor (58) is mounted on the Y-axis carriage (32), and is connected to the Y-axis screw (20) and the X-axis screw (44), respectively. An XY table (8) is carried by the X-axis frame (48) and is installed beyond one end of the X-axis screw (44), thereby
An operating machine characterized in that rotation of an axle nut (34) and said X-axis nut (50) causes movement of said table in the X and Y directions. (7) An anvil (80) is provided below the support surface (10), the anvil facing the operating head and movable between an activated position and an inactivated position; , in supporting relationship to the workpiece (6) on the support surface (10) when in the operative position, and from the workpiece and from the support surface when in the inoperative position. 7. Operating machine according to claim 6, characterized in that it is spaced apart from the anvil, thereby allowing movement of said XY table (8) relative to said anvil. (8) The X-axis frame (48) includes at least one X-axis guide (46), the X-axis guide (46) is slidably supported by the Y-axis carriage (32), and the X-axis 8. Operating machine according to claim 7, characterized in that the screw (44) is connected at each end to the X-axis guide (46). (9) The X-axis frame (48) extends in the Y direction (64, 6
6), this extension is connected to the Y-axis screw (2) when the Y-axis carriage (32) is at the second end of the Y-axis screw (32).
0), the support surface being on the extension and extending beyond the first end of the Y-axis screw. The operating machine described. (10) An XY table device characterized in that the X-axis drive motor (58) and the Y-axis drive motor (38) are carried by a Y-axis carriage (32) located on the Y-axis screw (20). .