JPH0225838Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to the structure of a positioner in which a support frame inserted between two posts is raised and lowered by a drive device.

Conventional technology In welding work and other cases where the workpiece is processed directly by hand by a worker, the workpiece is heavy and the work cannot be done while the workpiece is placed on the floor. If this is difficult, usually
The work is carried out by placing the workpiece on a workbench called a positioner.

There are various types of positioners, but one example, as shown in Figure 7, is a soresole sliding frame that is fitted into two posts protruding from the floor so that they can slide up and down. A support frame is attached between the bodies, a turntable is attached on the support frame, and the support frame is raised and lowered by pulling up the sliding frame with a drive device provided at the upper part of the post.

This device attaches the workpiece to the turntable and moves the support frame up and down, or rotates the turntable to hold the workpiece in a state that makes it easier for the operator to work. There is no need to climb onto a high step with a processing tool such as a welding tool, and there is no need to bend down below the workpiece, and there is no need to work on the next work after completing one work. However, the position of the workpiece can be changed freely by rotating the turntable or raising and lowering the support frame, so the operator does not have to move much from that position and can work in a comfortable posture. This not only makes the work easier and more efficient, but it also eliminates the need to climb up a high platform while holding work tools, so there is no danger of falling and the work can be done safely.

Problems to be solved by the invention The above positioner can be mounted stably even when mounted on a turntable when the workpiece has a block-like shape, and the working position is also particularly stable. There is no need to take However, the object to be processed is long, and
In the case of bent, irregularly shaped objects, it is not only difficult to mount them on a turntable, but also require the use of a step stool to accommodate the processing position when an operator performs processing operations. or had to work in an unnatural position. Even if a positioner was used, the worker was forced into an unreasonable working posture, resulting in great fatigue and low work efficiency, as well as having to perform the dangerous task of climbing on a step stool. Even if a positioner is used, such a result is not desirable.

This invention was devised in view of the above points, and the purpose is to provide a positioner that can be mounted in a state where even long, irregularly shaped workpieces can be easily worked.

Means for solving the problem The means of this invention taken to solve the above problem are (i) Two posts are provided protruding from the floor surface, and one post has a slide with guide rollers pivoted on four sides. A sliding frame body with guide rollers pivoted on only two sides on the other post and a sliding frame body with enough room to change the angle slightly on the two sides without guide rollers is inserted into the other post so as to be able to rise and fall freely. Was it.

(b) A drive device is attached to the top of each post to lift up the sliding frame.

(c) A support frame is connected between both sliding frames, one of which can be rotated up and down, and the other of which can be rotated about a longitudinal axis.

(d) The support frame consists of a motor underframe and a frame, both of which are rotatably supported around a longitudinal axis.

E. A motor is installed in the motor frame, and the frame is configured to rotate via a power transmission device.

It is.

Function: It is possible to attach a long, curved workpiece with an unspecified shape, and not only can it be raised and lowered freely to a height that corresponds to the worker's posture, but it can also be tilted in the longitudinal direction and rotated around that direction as an axis. Since it can be rotated, machining work is easy and work efficiency is improved.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In Figure 1, 1 and 2 are a pair of left and right posts,
It is fixed perpendicularly to the floor surface 3, electric chain blocks 4, 4' are installed at the upper part, and sliding frames 5, 6 are fitted in the middle part so as to be movable up and down. The sliding frames 5 and 6 are both posts 1 and 2.
The sliding frame 5 on the left side has a square plane as shown in Fig. 4, and has one pair of upper and lower guide rollers on all four sides. 7, and the guide roller 7
A bracket 8 is fixed to one side, and the bracket 8,
A chain wheel 3 is provided on the top of the sliding frame 5.
Chain wheel support bracket 38 that pivots on 7
is firmly attached. As shown in FIG. 2, the sliding frame 6 on the right side has a rectangular plane so that it can be tilted slightly with respect to the post 2, and the post 2 is held between only two sides of the frame on both sides. Several guide rollers 9 are pivotally supported as shown in FIG. A bracket 13 is provided above the bracket 13, and a support bracket 16 for a chain wheel 15 is pivotally supported on the bracket 13 by a pin 14.

A support frame 17 is used to attach the workpiece 18, and is composed of a frame 19, a motor frame 20, a drive motor 21, and the like. frame 1
9 is formed into a rectangular frame as shown in FIG.
Shafts 23 and 24 are protruded from both ends via shaft joints 22, one shaft 23 is rotatably fitted into a bearing part 25 fixed to the side end of the motor frame 20, and the other shaft 24 is rotatably fitted into the bearing portion 12 of the sliding frame 6, and the frame 19 is inserted into the shaft bearing 12 of the sliding frame 6.
It can rotate around 4. In addition, 36 is the workpiece 1
This is the pin hole for attaching 8.

As described above, the motor underframe 20 has a bearing portion 2 at one end.
4, and a bracket 26 is fixed to the other side, and is pivotally supported at this portion by a pin 27 to a bracket 8 of the sliding frame 5 so as to be freely rotatable up and down. Further, a drive motor 21 is installed on the upper part of the motor frame 20,
The shaft 23 and frame 19 are rotated by a reduction gear 28, chain wheels 29, 30, and a chain 31.

Reference numeral 32 denotes a switch for operating the electric chain blocks 4, 4', which can be operated simultaneously on the left and right sides or separately, and switching is performed by a switching lever 33 provided at the top, as shown in Fig. 6. be able to. 34 is a push button switch on the rising side;
35 is a push button switch on the lowering side.

Note that 33 is a chain of the electric chain blocks 4, 4'.

The present invention is constructed as described above, and during machining work, the workpiece 18 is fixed to the frame 19 and the workpiece is adjusted to a desired height and inclination.

To explain sequentially how to attach the workpiece 18, first, the workpiece 18 is placed on the floor 3 so as to be directly below the frame 19. The switch 32 is operated to operate the electric chain blocks 4, 4', and the support frame 17 is lowered. The switch 32 switches the left and right electric chain blocks 4, 4' at the same time, or
Each can be operated individually, so if the support frame 17 is horizontal, by placing the switching lever 33 in the neutral position and pressing the push button switch 35 on the lowering side, the support frame 17 will be in a horizontal state until it reaches the position of the workpiece 18. descend. If it is tilted, the switching lever 33
Tilt it to either the left or right side, press the up or down push button switch to first level the support frame 17, then set the switching lever 33 to neutral and lower it as described above.

When the workpiece 18 is attached to the frame 19, the support frame 17 is raised to a height suitable for processing.
The sliding frame 5 on the left side is always in the same direction as the post 1, but the sliding frame 6 on the right side is tilted together with the support frame 17, and when tilted, the guide roller 9 is not parallel to post 2. Therefore, it is not preferable to rise in such a state. Therefore, first raise the support frame 17 in a horizontal state, and if it is necessary to tilt the support frame 17, the left side Only the electric chain block 4 is operated, and the support frame 17 is moved around the sliding frame 6 on the right side.
By rotating it, it can be tilted to a desired state.

If it is necessary to rotate the frame 19 around the shafts 23 and 24, the drive motor 21 can be operated, and the reduction gear 28 and chain wheels 29 and 3 can be rotated.
0. Since the frame 19 rotates via the chain 31, the workpiece 18 can be oriented in a desired direction.

Effects of the invention As mentioned above, the present invention not only attaches a support frame between the sliding frames that are fitted into the left and right posts so that they can be raised and lowered and lifted up by a drive device, but also has a slidably connected to the
In addition, the support frame is composed of the motor underframe and the frame, and the frame is rotatable around the longitudinal axis, so the support frame can be raised and lowered according to the shape of the workpiece, allowing the operator to work in a convenient position. Not only can the workpiece be placed on the machine, but it can also be tilted freely in the vertical direction, making it easy to work with long, bent, irregularly shaped objects, and improving work efficiency.

Further, since it can be freely rotated around the longitudinal axis, the work is easy as described above.

[Brief explanation of the drawing]

Figure 1 is a front view of the present invention, Figure 2 is A of Figure 1.
Figure 3 is an enlarged view of part B in Figure 1, Figure 4 is a view seen from C in Figure 3, Figure 5 is a view seen from D in Figure 1, FIG. 6 is a front view of the switch, and FIG. 7 is a front view of a conventional switch. 1... Post, 2... Post, 4... Drive device (electric chain block), 4'... Drive device, 5...
...Sliding frame, 6...Sliding frame, 7...Guide roller, 8...Bracket, 9...Guide roller, 1
2...Bearing section, 17...Support frame, 19...
Frame, 20... Motor underframe, 25... Bearing section, 26... Bracket, 27... Pin.

Claims (1)

[Scope of utility model registration request] Two posts are provided protruding from the floor, one post has a sliding frame with guide rollers pivoted on four sides, and the other post has guide rollers pivoted on only two sides, and the guide roller A sliding frame body having a margin for slightly changing the angle in the direction of the other two surfaces not having a vertical axis is inserted so as to be able to rise and fall freely, and these are raised and lowered by a drive device installed at the top of the post, and the sliding frame body is A motor underframe in which a support frame is connected between the movable frame bodies, one of which is vertically connected and the other is rotatably connected around a longitudinal axis, and the support frame is connected rotatably around a longitudinal axis. A variable tilting lifting positioner comprising a frame and a motor, a motor is installed in a motor frame, and the frame is rotated via a power transmission device.