JPS58198369A - Xy table for automatic sending apparatus - 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 This invention moves a presser foot holding cloth into a fixed shape using a memory element such as a FROM, and uses an XY table of an automatic sewing machine and a workpiece of an NC machine tool to obtain seams of a fixed shape. XY for automatic feed devices such as knife racks
It's about tables.

Conventionally, as an XY table for an automatic feeder of this type, there has been one shown in FIG.

Referring to the figure, 1 is an XY table base, which has columns 2 at the four corners, and these columns 2 have two X slider axes 6.3' parallel to each other and two X slider axes parallel to each other. 4,
4' is fixed. 5.5' is this X slider axis 3
．． 3' is an X slider slidably inserted into the X
An X guide shaft 6 is fixed to the slider parallel to the X slider shaft 4.4'.

7 is an X guide shaft, which is fixed to the X slider 8.8' that is slidably inserted into the X slider shaft 4.4', and
It is arranged parallel to the slider 6.3'.

9 is an X-axis stepping motor, and an XY table base 1
It is attached to a bracket 1o attached to. 1
Reference numeral 1 designates an X-axis drive shaft, which is rotatably supported by a platen (12.12') fixed to the XY table base 1. A timing pulley 13 is fixed to a bracket part at one end, and a timing pulley 13 is fixed to a bracket part at the other end. 16' is fixed, and the outer end is further connected to the shaft of the X-axis stepping motor 9 via a coupling 14. 15.15 is an X-axis timing held, which is attached to the X slider 5, 5'J belt mounting bracket 16.16, and is attached to the timing pulley 1 above.
5, 15' and the timing pulleys 18, 18' which are pivotally supported by the brackets 17 and 17' fixed to the xy table base 1# are the Y-axis stepping motors, and 019 is a Y-axis stepping motor; It is attached to 20. 21 is the Y-axis drive axis, and the XY table base 1
A timing pulley 26 is fixed to the bracket part at one end, and a timing pulley 25' is fixed to the bracket part at the other end. via Y
The shaft is connected to the shaft of a stepping motor 19 .

25. 25 is the Y-axis tying belt, which is attached to the X sliders 8 and 8' at belt attachment point 26. 26'.
The above timing pulley 25.25 and the XY table base 1
It is wound around a timing pulley 28° 28' which is pivotally supported by a bracket 27° 27' fixed to the timing pulley 28° 28'. 2
Reference numeral 9 denotes a movable base, which is slidably inserted into the Y-axis guide shaft 6 and the X-axis guide shaft 7, which are perpendicular to each other.
For example, a presser foot for holding the cloth is attached.

The conventional device is configured as described above, and when a command signal is given to the X-axis stepping motor 9 by the FROM storage element, the timing pulley 15 of the X-axis drive shaft 11,
X-axis timing belt 15,1 wrapped around 15'
5' through the slider 5.5 to the X slider axis 5.6
' and the X guide shaft 7 as guides, the movable base 29 is moved in the X direction. The movement of the movable base 29 in the Y direction is also performed by the Y-axis stepping motor 19 in the same manner as the movement in the X direction.

In the conventional device configured as described above, since the X-axis stepping motor 9 is located at the outer end of the X-axis drive shaft 11, the movement of the timing belt 15 located far from the A certain timing belt 1
It lags behind the movement of 5'. This delay also occurs in the timing belts 25 and 25'. These delays are caused by the rotational movement of the stepping motors 9, 19 and the torsion of the drive shaft 11. 21 also becomes longer, the above-mentioned twist also increases, making it difficult to move the movable base 29 with high precision.
Furthermore, there is a drawback that the degree of sliding for moving the movable base 29 at high speed becomes even lower.

This invention was made to eliminate the above-mentioned conventional drawbacks, and FROM 4! The object of the present invention is to provide an XY table for an automatic feeder that can drive an XY table operated by a memory element, that is, the above-mentioned movable table at high speed and accurately.

An embodiment of the present invention will be described below with reference to the drawings. Second
In the figure, parts having the same functions as those in FIG.

Reference numeral 29 denotes a movable base, which is slidably inserted into the X guide shaft 6 and the X guide shaft 7 as described above.

The X guide shaft 6 is fixed to the X sliders 5.5', and these X sliders 5.5' are slidably fitted into the X slider shafts 5, 5'. Also, the X slider axis 5°6 is XY
It is fixed to the support 2 of the table base 1.

The X guide shaft 7 is fixed to the X sliders 8, 8', and the Y sliders 8.8' are slidably inserted into the Y slider shaft 4.4'. Further, the Y slider shaft 4.4' is fixed to the support column 2# of the XY table base 1. An X-axis timing belt (first movable member) 15. (Second movable member) 15' is fixed, and Y-axis timing belt (third movable member) 25° (fourth movable member) 25 is fixed.

Above X-axis timing pel) 15, 15'G;! XX
The Y-axis timing pels (25, 25') are configured to be driven by the X-axis drive shaft 21. The X-axis drive shaft 11 is supported by brackets 12 and 12' fixed to the XY table 1, and an intermediate bracket 60 is provided between the two support positions of these brackets 12 and 12'. A timing pulley 31 is fixed thereto. Also, yaks
The shaft 21 is pivotally supported by brackets 22 and 22, and a timing pulley 61 is fixed via another intermediate bracket 50 to an intermediate portion between two pivotally supported positions by these brackets 22 and 22'. 62 is a motor bracket attached to the XY table base 1, and an X-axis stepping motor 9 and a Y-axis stepping motor 19 are fixed to the motor bracket.

66 indicates a first intermediate timing belt and a second intermediate timing belt, which are connected to the motor bracket 32.
The timing pulley 31 is wound around an intermediate timing pulley 64 that is pivotally supported by the timing pulley 31 . The intermediate timing pulley 54 is coupled to the shafts of the X-axis stepping motor 9 and the Y-axis stepping motor 19 via couplings 14.24.

Automatic feeding whale cage X according to the present invention configured as described above
In the Y table, the movements of the X-axis stepping motor 9 and the Y-axis stepping motor 19 are controlled by the X-axis drive shaft 11 and the
A timing pulley 61 fixed to the middle of the shaft drive shaft 21
Therefore, the number of screws 4''L of these X-axis drive shafts 11 and 21 is small, and therefore the movable base 29 can be moved accurately even when performing high-speed motion.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional XY table for an automatic feeder, and FIG. 2 is a perspective view of an XY table for an automatic feeder showing an embodiment of the present invention. 6...Y guide axis, 7...X guide axis, 9...X
Axis stepping motor, 11...X-axis drive shaft, 15°15'...X-axis timing belt, 19...Y-axis stepping motor, 21...X-axis drive shaft, 25.25
'...Y-axis timing belt, 29...Movable base, 5
5...Intermediate timing belt. Agent Makoto Kuzuno

Claims (1)

[Claims] A movable table, a l/id axis and a Y guide axis that respectively guide the movable table in directions orthogonal to each other, and a cough X guide axis that is connected to both ends of the cough X guide axis and that moves the X guide axis in the axial direction of the Y guide axis a first movable member and a second movable member to be moved along the
a fifth movable member and a fourth movable member each coupled to one end of the Y guide shaft to move the Y guide shaft along the axial direction of the X guide shaft; A common Y-axis drive shaft that transmits driving force to the movable member and the second movable member, a Y-axis stepping motor that drives the Y-axis drive shaft, and a common Y-axis stepping motor that drives the third movable member and the fourth movable member. It is equipped with a common X-axis drive shaft that transmits force and an X-axis stepping motor that drives the #X-axis drive shaft, and the movable base is moved along the X guide axis by the X-axis stepping motor. In an XY table for an automatic feeder in which a movable base is moved along a Y guide axis by a Y-axis stepping motor, an axis at 21i on the X-axis drive shaft is moved by an X-axis stepping motor through a first intermediate timing belt. The intermediate part of the support position is driven, and the intermediate part of the two support positions of the Y-axis drive shaft is driven via the two intermediate timing belts from the Y-axis stepping motor. XY table for automatic feeder.