JPH0435360Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to general-purpose equipment having an indirect drive lift device that can be freely connected to and detached from a lift connection section provided in various production molds.

[Conventional technology]

2. Description of the Related Art General-purpose equipment called a machining center that can produce multiple types of parts is used in automated equipment for assembling automobile bodies and molding.

As such general-purpose equipment, there is conventional equipment as shown in FIGS. 4 and 5.

To explain this simply, an indirect drive lift device 2 is provided inside the lower base 1 of the machining center, and a conveyor rail 3 is provided on the upper part of the lower base 1.
is permanently installed.

The indirect drive lifting device 2 is attached to the lower base 1 by means of a bracket 11, as shown in detail in FIG.
The drive cylinder 21 has a drive cylinder 21 fixed to the drive cylinder 21, and a connection joint 21b having a substantially U-shaped cross section, which is provided on the top of a rod 21a which is driven by the drive cylinder 21 and moves up and down.

On the other hand, there is a die storage section on the side of the lower base 1 as shown in Fig. 4, and the required production die 4 is transported to a predetermined position in the machining center by the trolley 5 and the transport rail 3 as necessary. can do.

This trolley 5 can be moved perpendicularly to the plane of the paper by means of rails 6, and has a rail 7 connected to the conveyor rail 3 on the machining center side integrated into the upper part, and conveyor rollers provided on the side of the production die 4. 8 is rotatably supported, and in this state, the production mold 4 can be carried to a predetermined position on the conveyor rail 3 by a chain drive device or the like.

As shown in FIG. 5, the production mold 4 includes a lift plate 4 that has a recess 4a on the lower surface for escaping the indirect drive lift device 2, and has a plurality of guide pins 41 hanging thereon.
2 and a T integrally provided at the lower end of the connecting shaft 43 hanging down from the center of the lift plate 42.
The letter-shaped connecting portion 44 can be freely engaged with and detached from the connecting joint 21b of the indirect drive lift device 2.

The production mold 4, which has been placed at a predetermined position in the machining center while maintaining the height indicated by the imaginary line in FIG.
It is lowered to the top, where parts are assembled and processed.

When the work of the machining center is completed, the drive cylinder 21 operates to extend the rod 21a upward, and the connecting joint 21b presses the connecting part 44 upward to raise the production die 4, allowing the machined parts to be carried out and to the next stage. Unprocessed parts will be brought in.

In this way, by providing a common connecting shaft 43 for each production mold 4, it is possible to input different types of production molds into the same general-purpose equipment to achieve versatility in production.

[Problem that the invention attempts to solve]

However, in the case of general-purpose equipment having such a conventional indirect drive lift device, the connecting joint provided on the machining center side was provided so as to protrude upward from the lower base on which the production mold was installed, so it was necessary to connect this joint in advance. Only dedicated production molds with a common mold exchange part that has corresponding recesses and connecting parts and rollers for carrying out on the sides can be used.
Furthermore, if the mold is extremely small, the connecting shaft of the lift device must be made long, which causes the problem that the connecting shaft protrudes below the mold, making it difficult to carry it in and out.

The object of this invention is to provide a general-purpose equipment having an indirect drive lift device that can solve these conventional problems.

[Means for solving problems]

Therefore, general-purpose equipment with an indirect drive lift device according to this invention has a plate bolster that can be moved in and out of the equipment by installing a production type with a built-in lift connection part, and a lower base on which this plate bolster is placed. , an indirect drive lift device equipped with a movable connecting arm that can be connected to and removed from a production type lift connecting portion.

[Effect]

With the above configuration, the production mold is mounted on the plate bolster, transported to a predetermined position in general-purpose equipment, and placed on the lower base together with the plate bolster.

In this state, when the connecting arm of the indirect drive lift device is erected, this connecting arm is in a position where it can be connected to the lift connection part of the production model, and by activating the indirect drive lift device and raising the link arm, It is possible to carry in and out processed parts by raising the machine.

In addition, to replace the production mold, all you have to do is lower the connecting arm and lie down with the plate bolster integrated with the production mold placed on the lower base, and then take out and bring in the production mold. .

〔Example〕

Hereinafter, embodiments of this invention will be described with reference to FIGS. 1 to 3 of the accompanying drawings, but parts corresponding to those in FIG.

1 to 3 show an embodiment of this invention, in which a production mold 4 is fixedly mounted on a plate bolster 11 by screws, etc. As shown, rollers 12 for conveyance are provided so that the plate bolster 11 with the production die 4 mounted thereon can be carried in and out on the conveyance rail 3 of the machining center.

Lower base 1 located approximately in the center of the machining center
A bracket 13 is provided inside the bracket 13, and a lift drive cylinder 21 is fixed to this bracket 13.

The lift plate 22 is fixed to the tip of the rod 21a of the lift drive cylinder 21, and the guide pin 2
3 and guide bush 14 to lift plate 2.
2 can move up and down parallel to the bracket 13 (see Figure 2).

Further, a connecting arm 25 is pivotally supported by a shaft 24 on the lift plate 22 so as to be able to rise and fall freely, and a roller 26a is attached to a pin 26 of this connecting arm 25 as shown in FIG.
is attached rotatably, and a two-way spring 27 is engaged between the pin 26 and the lift plate 22,
The connecting arm 25 can be held at both raised and lowered end positions.

Further, a horizontal arm opening/closing cylinder 28 is fixed to the lower base 1, and an opening/closing arm 29 is integrally provided at the tip of the rod 28a. Hold the rod 28a with arrows A and B.
By moving in this direction, the hook portion 29a drives the roller 26a to raise and lower the connecting arm 25.

The indirect drive lift device 2 is configured by the drive cylinder 21 to the opening/closing arm 29 described above.

Note that the other configurations are the same as the conventional example shown in FIG.

Next, the operation of the embodiment configured as described above will be explained.

A required production die 4 fixed on the plate bolster 11 is carried into the center of the machining center on the conveyor rail 8, and placed on the lower base 1 by a lifting device (not shown). At this time, drive cylinder 2
1 is in an inoperative state, the rod 21a is at its lowering limit, the opening/closing arm 29 is at the end of the process in the direction of arrow B, and the connecting arm 25 is at the position shown by the solid line in the figure.

When the production mold 4 is placed at a predetermined position on the lower base 1, the arm opening/closing cylinder 28 is activated, and the hook portion 29a of the opening/closing arm 29 drives the roller 26a in the direction of arrow A to move the connecting arm 25. Bidirectional spring 2
Rotate 90 degrees in the standing direction against the urging force of step 7.

In this process, when the center line of the two-way spring 27 passes through the shaft 24, the connecting arm 25 is biased in the clockwise rotation direction as shown in FIG. This is a position where the connecting shaft 43 can be engaged.

In this state, parts are assembled and processed within the machining center, and when this is completed and a work completion command is issued, the drive cylinder 21 is activated, the rod 21a is extended, and the lift plate 22 and connection arm 25 are raised. .

As the connecting arm 25 rises, the connecting shaft 43, which is in a position where it can be engaged with the connecting arm 25, is pushed up.
Production type 4 will also rise. At this time, the roller 26a provided on the connecting arm 25 is connected to the hook portion 29 of the opening/closing arm 29.
However, the connecting arm 25 is kept in an upright state by the two-way spring 27.

When the production mold 4 reaches its upper limit, the processed parts are carried out, and the next unprocessed parts are carried in.
The lift plate 22 is lowered, and the production mold 4 returns to the predetermined position again to perform the next production.

When replacing the production mold 4 after a series of processing is completed, after positioning the connecting arm 25 at the lowest end,
Arm opening/closing cylinder 28 is indicated by arrow B (see Figure 3)
The hook portion 29a of the opening/closing arm 29
When the roller 26a is driven and the connecting arm 25 is rotated in the prone direction against the two-way spring 27, the connecting arm 25 is kept in the prone state by the biasing force of the two-way spring 27. In this state, the used production die is carried out together with the plate bolster, and the next production die attached to the same or another plate bolster is carried into the machining center.

[Effect of idea]

As mentioned above, the general-purpose equipment with the indirect drive lift device according to this invention has a plate bolster that can be moved in and out of the equipment by attaching a production type with a built-in lift connection part, and a lower base on which the plate bolster is placed. Since an indirect drive lift device is installed inside the mold and has a movable connecting arm that can be connected to and removed from the lift connection part of the production mold, the lift device can be shared regardless of the size of the production mold, and the The connecting shaft does not protrude downward,
There is no problem with transportation.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a side view seen from the direction indicated by the arrow in Fig. 1,
Fig. 3 is a plan view seen from the direction of the arrow in Fig. 2, Fig. 4 is a side view showing the entire conventional general-purpose equipment, and Fig. 5 is a front view similar to Fig. 1 showing the main parts. It is a diagram. DESCRIPTION OF SYMBOLS 1...Lower base, 2...Indirect drive lift device, 3...Transportation rail, 4...Production type, 11...
Plate bolster, 12...Roller for conveyance, 1
3... Bracket, 21... Drive cylinder, 22
... Lift plate, 25 ... Connection arm, 27
...Two-way spring, 28...Arm opening/closing cylinder,
29...Opening/closing arm, 44...Connection part.

Claims (1)

[Scope of utility model registration request] A plate bolster that can be attached to a production model with a built-in lift connection part and moved in and out of the equipment; and a lower base on which the plate bolster is placed;
General-purpose equipment characterized by having an indirect drive lift device equipped with a movable connecting arm that can be engaged with and detached from the lift connecting portion of the production type.