JP2005111634A - Working platform - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working platform which facilitates use of a tool and can use the space of the working platform effectively. <P>SOLUTION: The working platform is supported in a suspended state and its suspended height is alternatively set to a standby position P1 or a working position P2 lower than the standby position P1. By telescoping each cylinder C<SB>i</SB>, a first cord member 11<SB>i</SB>is fed downward, a connecting point 13<SB>i</SB>turns while being constrained by a second cord member 12<SB>i</SB>, a tool D<SB>i</SB>moves from the standby position P1 of an upper part at the right end of the working platform 1 to the working position P2 that is lower than the standby position P1 and in the center of the working platform 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a work table in which the positions of a plurality of tools supported in a suspended state are controlled in accordance with the progress of work.

  In general, in a manual operation process on a production line, a plurality of tools are arranged in a suspended state on each work table, and an operator sequentially pulls down a required tool on a work and assembles various parts. . During such work, the selection of the tool used in the work procedure may be confused or the work may be forgotten (forgotten to be assembled).

The following Patent Document 1 is known as one method for dealing with a decrease in workability or forgetting work due to such a puzzle of tool selection.
JP-A-8-25186 (Claim 1)

  In order to make the tool easy to use, it is preferable that a plurality of tools hang down near the center of the work table. However, if the tool hangs down in the center, it becomes difficult to effectively use the space behind the tool on the workbench.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a work table that makes it easy to use a tool and that can effectively use the work space.

In order to achieve the above object, one aspect of the work table of the present invention will be described with reference to FIGS.
Worktable 1 in Fig. 1 has a plurality of suspension units U _i, each tool D _i of each unit U _i is supported in a state of suspended and height suspended waiting in FIG A position P1 and a work position P2 below the standby position P1 are selectively set.

As shown in FIG. 2, each suspension unit U _i includes a telescopic air cylinder C _i , a first strip member 11 _i attached to one end of the air cylinder C _i , and a fixed point O of the upper frame. And a second strip member 12 _i attached to the head. The first strip member 11 _i and the second strip member 12 _i are connected to each other at a connection point 13 _i . The tool D _i is suspended downward from the connection point 13 _i .

In the work table 1, each cylinder C _{i in} FIG. 3 expands and contracts, whereby the first strip member 11 _i is extended downward, and the connection point 13 _i is restrained by the second strip member 12 _i. the turning about the fixed point O while, from said tool D _i is the standby position of the right end of the upper portion of the worktable 1 P1, than該待machine position P1 falls downward, and the central operations of the worktable 1 It moves to the position P2.

As indicated by the solid line in FIG. 3, the tool D _i hangs down to the standby position P1 when the rod R _i of the cylinder C _i is contracted. In this state, when the rod R _i of the cylinder C _i is extended (protruded), the first rope member 11 _i is extended downward, and the connection point 13 _i obliquely moves around the fixed point O along the locus indicated by the arrow A. Turn downwards. Therefore, the tool D _i moves from the standby position P1 to the work position P2 indicated by the two-dot chain line.

On the other hand, from the state of the working position P2, the rod R _i of the cylinder C _i is contracted, the first rope member 11 _i is pulled back upward, the connection point 13 _i along the path indicated by the arrow A, the fixed point O Turn around and diagonally upward. Therefore, the tool D _i moves from the work position P2 to the standby position P1.

According to the present invention, when using the tool D _i, because the tool D _i is moved toward the center of the workbench not only moves downwards, easy to use tool D _i. On the other hand, the unnecessary tool D _i not only escapes upward, but also stands by at the right end. Therefore, an effective space S is created at the position of the front center of the work table. By placing a screw feeder or a container behind this space S, the space can be used effectively.

In a preferred embodiment of the present invention, the first rope member 11 _i and feed unit 14 _i to determine the routing of causes suspended freely unwound first rope member 11 _i of the plurality of 2 from the top Are provided separately from each other in the depth direction X of the work table 1.

According to this aspect, since the waiting tools D _i are arranged in the depth direction X, the waiting tools D _i are overlapped when viewed from the front of the work table, so that the effective space is further widened. .

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
For example, three sets of suspension units U _i are provided on the upper portion of the frame 10 of the work table 1. The cylinders C _i of each unit U _i are arranged horizontally and parallel to each other. A shelf 15 is provided in the middle of the work table 1 so that screw supply machines and containers can be placed.
In addition, you may arrange | position a conveyor etc. in the table 16 of the worktable 1 as needed.

The end of the rod R _i of each cylinder C _i in FIG. 2, the first wire 11 _i is connected. Each wire 11 _i hangs downward through, for example, the hole of the eyebolt 14 _i . Each eyebolt 14 _i is fixed to the frame 10 of FIG. 1 so as to be movable in the depth direction X. The upper end O of the second wire 12 _i is fixed to the frame 10.

A large number of component supply units 2 _i are arranged behind the table 16. As shown in FIGS. 5A and 5B, each supply unit 2 _i includes a supply chute 21 _i for placing the container 20 and a discharge chute 22 _i for discharging the container 20. The two types of chutes 21 _i and 22 _i are formed along a substantially “<” shape, and the container 20 slides obliquely forward on the supply unit 21 _i and then slides on the discharge chute 22 _i for discharge. It has come to be.

Each supply unit 2 _i has an operation unit 3 _i for performing the operation of dropping and discharging the container 20. In each operation unit 3 _i , an operation cable 31 _i is connected to a ring-shaped operation unit 30 _i . The operation cable 31 _i may be a cable with an inner cable inserted through the outer.

A cutout portion 32 _i is connected to the tip of the cable 31 _i . The cutout portion 32 _i swings about the support shaft 33, and a first posture in which the first end portion 32 a obliquely below in FIG. 5A engages with the front end of the container 20 on the front side, The second end 32b obliquely above 5 (b) is set to the second posture that engages with the front end of the container 20 at the back. That is, normally, the container 20 is held on the supply chute 21 _i while being held in the first posture of FIG. 5A by the spring force of the holding spring 34. On the other hand, by pulling the operating portion 30 _i and pulling the cable 31 _i , the cutout portion 32 _i slightly resists the spring force of the holding spring 34 as shown in FIG. When it rotates, the first end 32a is lowered and one container 20 is discharged, and the second container 32 is engaged with the next container 20 so that the next container 20 does not fall. Retained. When the operation part 30 _i is released, the cable 31 _i is pulled back by the spring force of the holding spring 34, the cutout part 32 _i rotates in the opposite direction around the support shaft 33, and again in FIG. The cutout part 32 _i returns to the first posture.

The work table 1 is provided with a control device 4 shown in FIG. The control device 4 includes a microcomputer 43, a display 40 connected to the microcomputer 43 via an interface, an input operation unit 41, and a local controller 42. The local controller 42 controls driving of a solenoid valve S _i that performs expansion / contraction control of each cylinder C _i . That is, the control device 4 controls each suspension unit U _i .

Next, how to use the work table 1 will be described.
When one work process is completed, the worker inputs the completion of the work from the input operation unit 41. This input operation, the microcomputer 43 reads the next working step, and controls driving the solenoid valve S _i in accordance with the working step, the replacement of the necessary tools D _i in FIG. That is, if in one step for all of the tool D ₁ to D ₃ is unnecessary, to contract the all cylinders C ₁ -C _3, all of the tool D ₁ to D ₃ as shown in FIG. 1 table Retract to the right end of 16. Meanwhile, in a separate step, when the tool D _i is required in FIG. 3, by stretching the cylinder C _i corresponding to the necessary tools D _i, the center of the tool D _i from the right end toward the obliquely downward Supply. Further, when another tool is required in another process, the necessary tool is supplied to the center after the unnecessary tool is retracted to the right end.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
For example, the cylinder may be placed vertically on the side surface.
A rope or the like may be used instead of the wire.
The number of units should just be two or more.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The worktable of the present invention can be used for assembling products and semi-finished products in a factory.

1 is a schematic perspective view showing a workbench according to a first embodiment of the present invention. It is a schematic perspective view which shows a suspension unit. It is a schematic front view which shows a suspension unit. It is a schematic block diagram which shows a control apparatus. It is a side view which shows a part of work bench.

Explanation of symbols

1: Work table 11 _i : First strip member 12 _i : Second strip member 13 _i : Connection point 14 _i : Feeding portion D _i : Tool P1: Standby position P2: Work position U _i : Suspension unit

Claims (2)

Work with a suspension unit that suspends a plurality of tools that are supported in a suspended state and whose suspended height is selectively set at a standby position and a work position below the standby position. On the table,
Each suspension unit has a telescopic air cylinder,
A first strip member attached to one end of the air cylinder;
A second strip member attached to the upper frame;
A connection point connecting the first strip member and the second strip member;
A tool suspended downward from the connection point,
As each cylinder expands and contracts, the first cord member is extended downward, the connection point is pivoted while being restrained by the second cord member, and the tool waits at the upper right end of the work table. A work table that is lowered from the stand-by position to a work position in the center of the work table.   In Claim 1, the said 1st strip member was drooped freely from upper part, and the feeding part which determines the wiring path | route of this 1st strip member was provided mutually spaced apart in the depth direction of the work bench | platform. Workbench.

Images