JPH0651264B2 - Center column type automatic base machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a device used in an automatic assembly machine, an automatic inspection machine, or the like for specifically performing vertical movements.

[Conventional technology]

The conventional center column type automatic machine base machine is the 7th
As shown in the figure, the vertically movable table 1 is supported by a column 10 near the center thereof. The column 10 passes through the intermittent drive device 6 and is guided by bearings 11, 11. When the column 10 is driven up and down by the cam 7, the up-and-down moving table 1 also moves up and down. This movement is transmitted to the tool 4 attached to the vertical movement table 1,
By acting on the jig 3 attached to the turntable 5, work such as caulking and inserting is performed.

[Problems to be solved by the invention]

(Problem 1) As described above, the vertically movable table 1 is conventionally driven vertically by the support column 10 that passes through the center of the turntable 5. Then, the column 10 passes through the drive device 6 of the turntable 5. Therefore, the drive device 6 requires a space through which the support column 10 passes and the bearings 11 and 11. Therefore, the intermittent drive device 6 becomes large and complicated by this amount.

Since this type of intermittent drive device is generally expensive, its large size and complexity are costly.

(Problem 2) Since the vertical motion table 1 is supported by the central portion,
In order to increase the rigidity of the peripheral portion, it is necessary to thicken the center column. However, if the central column 10 is made thicker, the bearings 11 and 11 are also made thicker, and the diameter of the roller gear 100 is also made larger. As a result, the intermittent driving device 6 must be made larger. It becomes larger than necessary, and the cost loss increases.

(Problem 3) When observing and maintaining the state of the jig and the tool, the column 10 is located at the center of the turntable 5, so the column 1
It cannot be seen from the direction of 0, which hinders work. Further, when the diameter of the turntable 5 becomes small, the distance between the jig 3 and the tool 4 and the support column 10 becomes narrow, and it becomes impossible to put in a hand, and workability also deteriorates in this respect.

Furthermore, when the intermittent drive device 6 becomes large and protrudes laterally from under the turntable 5, it interferes with the work and mounting of peripheral devices.

[Means for solving problems]

The center column type automatic machine base machine of the present invention is
In order to solve the above-mentioned drawbacks of the conventional example, a vertical movement table 1 is provided above a turntable 5 provided with a jig, and the vertical movement table 1 is provided outside the turntable 5 with two or more columns 2. It is characterized by being supported by and capable of moving up and down.

[Action]

In the present invention configured as described above, (a) By arranging the columns 2 and 2 in the peripheral portion of the vertically movable table 1, the rigidity of the peripheral portion can be increased. This is particularly effective in the following items.

That is, since the tool 4 acting on the jig 3 in the peripheral portion of the turntable is located in the peripheral portion of the up-and-down motion table 1, a force is often applied during the operation. By installing the column 2 near the tool 4, the rigidity around the column 2 can be increased.

(B) In comparison with the prior art, in the present invention, it is not necessary to pass the column 2 through the center of the turntable 5. Therefore, the turntable 5 and the intermittent drive device 6 do not require the space through which the support column 2 passes and the bearings 11 and 11. Therefore,
The intermittent drive device 6 is simple and small by this amount. In general, this type of intermittent drive device is expensive, and therefore it is inexpensive due to its small size and simple structure, so that there is a great cost advantage.

(C) When observing the state of the jig 3 and the tool 4 or performing maintenance, the pillar 10 at the center of the turntable 5 can be eliminated, so that it can be observed from the direction of the center.
It is convenient to be able to put your hand in. In automatic assembly machines and automatic inspection machines, the work set on the jig 3 is often observed and the defects are corrected or removed. Therefore, the fact that there are no obstacles in the center part is a workability aspect. It has a great advantage. Further, in the conventional method, when the diameter of the taen table 5 is smaller than 300 mm, the gap between the jig 3 and the tool 4 and the support column 10 is often smaller than 100 mm. In this case, when doing some work by hand, 1
Since it is desirable to have a space of 00 mm or more, it cannot be said that if the gap becomes narrower than 100 mm, the workability will be considerably deteriorated, although it cannot be said that the work cannot be performed. Also in this respect, the method of the present invention has good workability because there is no obstacle such as the column 10 in the central portion.

〔Example〕

Embodiments of a center column type automatic machine base machine of the present invention will be described in detail below 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 FIGS. 1 to 3, 1 is a vertical movement table,
It is supported by a plurality of columns 2 attached to a base 9 so as to be able to move up and down. The columns 2 and 2 are arranged outside the turntable 5 which is intermittently driven via the output portion 21 of the intermittent drive device 6 on the base 9 and slide in the bearings 8 and 8.

As described above, the vertically movable table 1 is supported by the columns 2 and 2. The columns 2 and 2 are guided by bearings 8 and 8 and are connected to each other by a connecting rod 12 at a lower portion of the base plate 9. The connecting rod 12 is provided with a roller 13 and is in contact with the cam 7 driven by the drive motor 41. Laura 1
When 3 is in the lower part of cam 7, as cam 7 rotates, roller 13 moves to the higher part of cam 7 and is pushed upwards. Naturally, the column 2 and the vertical movement table 1, and the tool attached to the vertical movement table 1 are also pushed upward, and the jig and the tool on the turntable 5 are also separated.

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

Reference numeral 51 in FIG. 1 is a detection unit attached to the vertically movable table 1, 52 in FIG. 2 is a pick-and-place unit supported by the intermediate table 31, and the work is taken out from the feeder 53 attached to the turntable 5 and turned. 5 Used to set the jig on.

In the embodiment shown in FIGS. 4 and 5, the turntable 5 is used.
The center of rotation is held by a bearing 32 provided in the lower portion of the intermediate table 31, and the intermediate table 31 is axially attached to the vertical movement table 1 in the upper portion. In this example, the tool 4 is attached to the vertically movable table 1. Turntable 5
By pivotally attaching the to the vertical movement table 1 in this way,
Work accuracy is improved. Since the up-and-down moving table 1 itself is not supported by the turntable 5, there is no defect as in the conventional example.

The work 20 is mounted in the jig 3 on the turntable 5 by a human hand or by a supply device. As shown in FIG. 3, some jigs 3 having the work 20 mounted thereon are mounted on the turntable 5. The turntable 5 is intermittently driven via the output unit 21 of the intermittent drive device 6. That is, the turntable 5 repeats the movement and the stop of the same number as the number of the jigs 3 per one rotation of the table.

A tool 4 is attached to the vertically movable table 1.
The tool 4 is a punch for caulking, a driver, a drill, marking, a nozzle for discharging an adhesive, a device for taking out a work,
A work supply device, etc.

As described above, the vertically movable table 1 is supported by the columns 2 and 2. The columns 2 and 2 are guided by bearings 8 and 8 and are connected by a connecting rod 12. The connecting rod 12 is provided with a roller 13 and is in contact with the cam 7. In the figure, the roller 13 is in the lower part of the cam 7,
As the roller rotates in the direction of arrow 22, the roller 13
Moves to the higher part of the cam 7 and is pushed upward. Naturally, the column 3, the vertical movement 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 is intermittently moved 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 vertical movement table 1 and the tool 4 are lowered immediately after the intermittent movement is finished.

In the embodiment shown in FIG. 5, the intermediate table 31 on the turntable 5 is axially supported by the output portion 21 of the turntable 5 and is fixed to the bearing 8 so as not to rotate. Since the guide pole 55 is erected on the upper part of the intermediate table 31 and is fitted in the bearing 56 provided on the vertical movement table 1, the positional accuracy between the vertical movement table 1 and the intermediate table 31 is also good.

Reference numeral 57 denotes a sensor attached to the intermediate table 31, which detects the shape of the work 20 attached to the jig 3 on the turntable 5.

The embodiment shown in FIG. 6 is for detecting the height of the work 20.

In this embodiment, a pair of detection arms 61 and 62 are attached to the vertically movable table 1 so as to be vertically movable. The detection arms 61 and 62 are urged downward by a spring 64 from a bracket 63 for attaching to the vertically movable table 1 and abut against the work 20 and stop. At that time, the sensor 67 detects the position where the pin 65 at the tip of the one detection arm 61 serves as a reference point, and the tip 66 of the other detection arm 62 hits the workpiece 20 and stops.

〔The invention's effect〕

Since the center column type automatic machine base machine of the present invention is configured as described above, (a) By disposing the columns 2 and 2 in the peripheral portion of the vertically movable table 1, the rigidity of the peripheral portion can be made high. This is particularly effective in the following items.

That is, since the tool 4 acting on the jig 3 in the peripheral portion of the turntable is located in the peripheral portion of the up-and-down motion table 1, a force is often applied during the operation. By installing the column 2 near the tool 4, the rigidity around the column 2 can be increased.

(B) In comparison with the prior art, in the present invention, it is not necessary to pass the column 2 through the center of the turntable 5. Therefore, the turntable 5 and the intermittent drive device 6 do not require the space through which the support column 2 passes and the bearings 11 and 11. Therefore,
The intermittent drive device 6 is simple and small by this amount. In general, this type of intermittent drive device is expensive, and because it is small and simple, it is inexpensive, which has a great cost advantage.

(C) When the jig 3 and the tool 4 are to be observed or maintained, the column 10 located at the center of the turntable 5 can be eliminated, so that the turntable 5 can be observed from the direction of the center and the hands can be put in. It is convenient. In the automatic assembly machine and the automatic inspection machine, the work set on the jig 3 is often observed to correct or remove the defect.
The fact that there are no obstacles in the central part has a great advantage in terms of workability. Further, in the conventional method, when the diameter of the taen table 5 is smaller than 300 mm, the gap between the jig 3 and the tool 4 and the support column 10 is often smaller than 100 mm. In this case, when doing some work by hand, 100
Since it is desirable to have a space of mm or more, the gap is 10
If it becomes narrower than 0 mm, it cannot be said that the work cannot be performed, but it cannot be said that the workability is considerably deteriorated. Also in this respect, the method of the present invention has good workability because there is no obstacle such as the column 10 in the central portion.

[Brief description of drawings]

1 is a front view showing an embodiment of a center column type automatic machine base machine according to the present invention, FIG. 2 is a side view showing a state in which a tool is changed, and FIG. 3 is a perspective view showing a state in which a tool is further changed. FIGS. 4 and 5 are front views of another embodiment, 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 movement table, 2 ... Strut, 3 ... Jig, 4 ... Tool, 5 ... Turntable, 6 ... Intermittent drive device, 7 ... Cam, 8 ... Bearing, 9 ... Base, 10 ... Support 11 ... Bearing, 12 ... Connecting rod 13 ... Roller

Claims (3)

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