JPH03281152A - Base machine for center column type automatic device - Google Patents

Abstract

PURPOSE:To increase rigidity around a stay, to reduce the size of an intermittent drive device, and to improve workability by providing a vertical moving table, supported by two or more stays outside a turn table, above the turn table having a jig. CONSTITUTION:A jig 3 to which a work 20 is attached is attached on a turn table 5 and intermittently driven through an intermittent drive device 6. Movement and a stop effected the same number of times as the number of the jigs 3 per one full turn are repeated, and a tool 4 is attached to a vertical moving table 1. The vertical moving table 1 is supported by means of stays 2 and guided by means of bearings 8, and coupled by means ot a coupling rod 12. A roller 13 is brought into contact with a cam 7. When the cam 7 is rotated in the direction of an arrow mark 22, the roller 13 is pushed up, and the stays 2, the vertical moving table 1, and the tools 4 are also pushed up. Under this state, the turn table 5 is moved intermittently by an amount equivalent to one pitch of the jig 3. During intermittent movement of the turn table 5, the cam 7 is continued to rotate, and immediately after completion of intermittent movement, the vertical moving table 1 and the tools 4 are lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device that specifically performs vertical movements used in automatic assembly machines, automatic inspection machines, etc.

[Conventional technology]

The conventional center column type automatic machine base machine is
As shown in the figure, the vertically movable table 1 is supported near the center by a column 10. The column 10 passes through the intermittent drive 6 and is guided by bearings 11,11. Here, when the column 10 is driven up and down by the cam 7,
The vertically movable table 1 also moves vertically. This movement is transmitted to the tool 4 etc. attached to the vertical movement table 1, and acts on the jig 3 attached to the turntable 5.
It is used for operations such as caulking and insertion.

[Problems to be Solved by the Invention] (Problem 1) As described above, conventionally, the vertically movable table 1 is driven up and down by the support 10 passing through the center of the turntable 5. The support column 10 then passes through the drive device 6 of the turntable 5. Therefore, the drive device 6 requires a space for the support column 10 to pass through and bearings 11, 11. Therefore, the intermittent drive device 6 becomes larger and more complicated.

Generally, this type of intermittent drive device is expensive, so making it large and complicated results in a large cost loss.

(Problem 2) Since the vertically movable table 1 is supported at the center,
In order to increase the rigidity of the periphery, it is necessary to make the middle I-ki pillars thicker. However, if the central support 10 is made thicker, the bearings 11, 11 also become thicker, and the roller gear gear 100 becomes thicker.
The diameter of the intermittent drive device 6 also becomes larger, and as a result, the intermittent drive device 6 must also be made larger.As a result, the intermittent drive device 6 becomes larger than necessary, increasing loss in terms of cost.

(Problem 3) When observing or maintaining jigs and tools, since the above-mentioned support 10 is located at the center of the turntable 5,
It cannot be seen from the 0 direction, which hinders work. Further, as the diameter of the turntable 5 becomes smaller, the distance between the jig 3 and the tool 4 and the support 10 becomes narrower, making it impossible to put your hand in, which also impairs work efficiency.

Furthermore, if the intermittent drive device 6 becomes large and protrudes laterally from under the turntable 5, it will get in the way of work and attachment of peripheral devices.

[Means for solving the problems] The base machine for a center column type automatic machine of the present invention has the following features:
This is an attempt to eliminate the above-mentioned drawbacks of the conventional example, and a vertically movable table 1 is provided above a turntable 5 equipped with a jig, and this vertically movable table 1 is provided with two or more supports 2 on the outside of the turntable 5. It is characterized in that it is supported by and can move up and down.

[Effect]

In the present invention constructed as described above, (a) the supporting columns 2.2 are arranged around the vertically movable table l, thereby increasing the rigidity of the peripheral area. This is particularly effective for the following items:

In other words, since the tool 4 that acts on the jig 3 on the periphery of the turntable is located on the periphery of the vertically movable table 1, force is often applied when the tool 4 acts on the jig 3. By installing the support 2 near the tool 4, the rigidity around the support 2 can be increased.

(b) In comparison with the prior art, it is not necessary to pass the support 2 through the center of the turntable 5 in the present invention. For this reason, the turntable 5 and the intermittent drive device 6 have a space for the support column 2 to pass through, and a space for the bearing 11. There is no need for II. therefore,
This makes the intermittent drive device 6 simple and compact. Generally, this type of intermittent drive device is expensive, but it is made smaller and has a simpler structure, which makes it cheaper.
Great cost advantage.

(c) When observing or maintaining the jig 3 and tool 4, since the support 10 at the center of the turntable 5 can be removed, the jig 3 and the tool 4 can be observed from the direction of the center.
It's convenient because I can get my hands on it. In automatic assembly machines and automatic inspection machines, the workpiece set in jig 3 is often observed, corrected defects, or removed, so having no obstructions in the center is important in terms of workability. It has a huge advantage. Further, in the conventional method, when the diameter of the ten table 5 is smaller than 300 mm, the gap between the jig 3 and the tool 4 and the support 10 is often narrower than 100 mm. In this case, when doing some work by hand, 1
It is desirable to have a space of 0.00 mm or more, so if the gap is narrower than 100 mm, it must be said that the workability will be considerably degraded, although the work will not be impossible. In this respect as well, the method of the present invention has a pillar I in the center part.
Workability is improved because there are no obstacles such as O.

[Embodiments] Hereinafter, embodiments of the center column type automatic machine base machine of the present invention will be described in detail with reference to the drawings.

1 to 6 show an embodiment of a center column type automatic machine base machine according to the present invention.

In Figures 1 to 3, 1 is a vertically movable table;
It is supported by a plurality of columns 2.2 attached to the base 9 so as to be movable up and down. This column 2.2 is arranged outside the turntable 5, which is driven intermittently via the output 21 of the intermittent drive 6 on the base plate 9, and is adapted to slide in a bearing 8.8.

As mentioned above, the vertically movable table 1 is supported by the support column 2°2. The column 2.2 is guided by bearings 8.8 and is connected by a connecting rod 12 in the lower part of the base 9. A roller 13 is attached to the connecting rod 12 and is in contact with a cam 7 driven by a drive motor 41. roller 1
3 is at the lower part of the cam 7, as the cam 7 rotates, the roller 13 moves to the higher part of the cam 7 and is pushed upward.

Naturally, the support 2, the vertically movable table 1, and the tools attached to the vertically movable table 1 are also pushed upward, and the jigs and tools on the turntable 5 are also separated.

In this state, the turntable 5 moves intermittently by one pitch of the jig. The cam 7 continues to rotate in the direction of the arrow during the intermittent movement of the vertically movable table 1, and when the intermittent movement is completed, the vertically movable table 1 and the tool are lowered.

Reference numeral 51 in FIG. 1 is a detection unit attached to the vertically movable table 1, and reference numeral 52 in FIG. 2 is a pick-and-place unit supported by the intermediate table 31. Used to set on the jig above 5.

In the embodiments shown in FIGS. 4 and 5, the center of rotation of the turntable 5 is held by a bearing 32 provided at the lower part of the intermediate table 31, and the intermediate table 31 is pivoted to the vertically movable table 1 at the upper part. ing. In this example, the tool 4 is attached to the vertically movable table 1. By pivoting the turntable 5 to the vertically movable table 1 in this manner, work accuracy is improved. Incidentally, since the vertically movable table 1 itself is not supported by the turntable 5, there is no drawback as in the conventional example.

The workpiece 2o is placed in the jig 3 on the turntable 5 manually or by a supply device. Several jigs 3 with workpieces 20 mounted thereon are mounted on a turntable 5 as shown in FIG. The turntable 5 is driven intermittently via the output section 21 of the intermittent drive device 6. In other words, the turntable 5 repeats movement and stopping the same number of times as the number of jigs 3 per table rotation.

A tool 4 is attached to the vertically movable table 1.

Tools 4 include a punch for caulking, a driver, a drill, a marking device, an adhesive discharge nozzle, a workpiece take-out device,
A work supply device, etc.

As mentioned above, the vertically movable table 1 is supported by the support column 2°2. The columns 2, 2 are guided by bearings 8.8 and are connected by a connecting rod 12. A roller 13 is attached to the connecting rod 12 and is in contact with the cam 7. In the figure, the roller 13 is located at the lower part of the cam 7;
As the roller 13 rotates in the direction of the arrow 22, the roller 13 rotates in the direction of the arrow 22.
moves to the higher part of the cam 7 and is pushed upward. Naturally, the column 3, the vertically movable table 1, and the tool 4 are also pushed upward, and the jig 3 and the tool 4 are also separated.

In this state, the turntable 5 moves intermittently by one pitch of the jig 3. The cam 7 continues to rotate in the direction of the arrow even during the intermittent movement of the table 1, and the cam 7 is constructed so that the vertically movable table 1 and the tool 4 are immediately lowered when the intermittent movement ends.

In the embodiment shown in FIG. 5, the intermediate table 31 on the turntable 5 is supported by being pivotally attached to the output section 21 of the turntable 5, and is fixed to a bearing 8 so as not to rotate. A guide ball 55 is provided upright on the upper part of the intermediate table 31 and is fitted into a bearing 56 provided on the upper and lower movable table 1, so that the mutual positional accuracy of the vertical movable table 1 and the intermediate table 31 is good. be.

A sensor 57 is attached to the intermediate table 31 and is designed to detect the shape of the workpiece 20 attached to the jig 3 on the turntable 5.

The embodiment shown in FIG. 6 is for adjusting the height of the workpiece 20.

In this embodiment, a pair of detection arms 61 and 62 are attached to the vertically movable table l so as to be able to move up and down. The detection arms 61 and 62 are urged downward by a spring 64 from a bracket 63 for attachment to the vertically movable table 1, and stop when they hit the workpiece 2o. At this time, the bin 65 at the tip of one of the detection arms 61 serves as a reference point, and the sensor 67 detects the position where the tip 66 of the other detection arm 62 hits the workpiece 20 and stops.

[Effects of the Invention] ] Since the base machine for center column type automatic machines of the present invention is constructed as described above, (a) the rigidity of the peripheral part can be increased by arranging the columns 2.2 around the vertically movable table 1; can be taken high. This is particularly effective for the following items:

In other words, since the tool 4 that acts on the jig 3 on the periphery of the turntable is located on the periphery of the vertically movable table 1, force is often applied when the tool 4 acts on the jig 3. By installing the support 2 near the tool 4, the rigidity around the support 2 can be increased.

(b) In comparison with the prior art, it is not necessary to pass the support 2 through the center of the turntable 5 in the present invention. Therefore, the turntable 5 and the intermittent drive device 6 do not require a space for the support column 2 to pass through and the bearings 11.11. therefore,
This makes the intermittent drive device 6 simple and compact. Generally, this type of intermittent drive device is expensive, so being smaller and simpler makes it cheaper, which has a great cost advantage.

(c) When observing or maintaining the jig 3 and tool 4, the support lO at the center of the turntable 5 can be removed, so it is difficult to observe or touch from the center direction. It is convenient to be able to do this. In automatic assembly machines and automatic inspection machines, the workpiece set in jig 3 is often observed, corrected defects, or removed.
The absence of obstacles in the center has a great advantage in terms of workability. Further, in the conventional method, when the diameter of the ten table 5 is smaller than 300 mm, the gap between the jig 3 and the tool 4 and the support 10 is often narrower than 100 mm.

In this case, when doing some work by hand, it is desirable to have a space of 100 mm or more, so the gap should be 100 mm.
If the space becomes narrower, it may become impossible to work, if not impossible.
It must be said that the workability becomes considerably worse. In this respect as well, the method of the present invention improves workability because there is no obstacle such as the support 10 in the central portion.

[Brief explanation of the drawing]

3. Fig. 1 is a front view showing an embodiment of the center column type automatic machine base machine of the present invention, Fig. 2 is a side view with the tool changed, and Fig. 3 is a perspective view with the tool further changed. 4 and 5 are front views of other embodiments, respectively.
FIG. 6 is an enlarged view of a main part of another embodiment, and FIG. 7 is a front view of a conventional example. 1... Vertical table 3... Jig 5... Turntable 7... Cam 9... Base 11... Bearing 13... Roller 2... Support 4... Tool 6 ... Intermittent drive device 8 ... Bearing 10 ... Support column 12 ... Connecting rod

Claims (1)

[Claims] 1. A vertically movable table 1 is provided above a turntable 5 equipped with a jig, and this vertically movable table 1 is supported by two or more supports 2 on the outside of the turntable, and is vertically movable. A center column type automatic machine base machine that is movable. 2. The base machine for a center column type automatic machine according to claim 1, wherein the vertical movement of the vertically movable table 1 is driven by a cam 7 via a column 2. 3. The base machine for a center column type automatic machine according to claim 1 or 2, wherein the turntable 5 is intermittently driven by an intermittent drive device 6.