JP2595154Y2 - Pressing and positioning device for works of different heights that are sequentially conveyed - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for pressing and positioning workpieces of different heights sequentially conveyed at a working position.

[0002]

2. Description of the Related Art An apparatus as shown in FIG. 3 is known as an example of a pressing apparatus for overlapping and clamping two types of work for welding. The details will be described below.
On one upper surface, a transport pallet 102 on which two kinds of works C and D are placed is arranged. Also, the base 101 has:
An air cylinder 103 is fixed, and a pressing plate 105 is fixed to a cylinder rod 104 of the air cylinder 103.

Next, the operation will be described. First, the pressing plate 105 is raised, and the pallet 102 is positioned below it. Next, the pressing plate 105 is lowered, and
The part D1 having a low work D is pressed, and the part (the part D1 having a low work D and the work C) is welded. Next, the pressing plate 105 is raised again to slightly move the pallet 102.
Thereafter, the pressing plate 105 is lowered to press the high portion D2 of the work D, and that portion (the high portion D2 of the work D) is pressed.
Is welded. Then, the pressing plate 105 is raised again and the pallet 102 is discharged.

[0004]

However, in the above-mentioned prior art, when a plurality of portions having different heights are welded in the same work, the pressing state is released by raising the pressing plate 102 once. The work is moved, the pressing plate 105 is lowered again, and the work is pressed (clamped) again. In other words, even if the same work is processed at a plurality of locations on the work, it has to be re-clamped each time, and there is a problem that productivity is deteriorated.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by sliding the upper ends of two link rods above the working positions of works which are sequentially conveyed and having different heights. The two link rods are pivotally connected at their lower ends, and a roller is rotatably mounted on the pivoted portion, and at least one of the link rods is moved forward and backward. Moving means.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention shown in FIGS. 1 and 2 will be described in detail. This apparatus is an apparatus for fixing two works by ultrasonic welding. Sliding blocks 2 and 3 are fixed to the lower surface of the base 1 at appropriate intervals by bolts or the like, and the sliding blocks 2 and 3 are formed with sliding holes 4 and 5, respectively. One end of each of the link bars 6 and 7 is pivotally connected to the sliding holes 4 and 5. or,
The other ends of the link rods 6 and 7 are rotatably connected by connecting pins 8. Further, a roller 9 for pressing two works is rotatably attached to the connecting pin 8.

A connecting plate 10 is attached to an end of the link bar 7 on the sliding side of the base 1, and the connecting plate 10 is an air fixed to the base 1 via a bracket 11. It is fixed to a cylinder rod 13 of a cylinder 12. Further, a spring 14 is provided at an intermediate portion between the link bar 6 and the link bar 7, and a spring force acts in a direction in which the link bar 6 and the link bar 7 are pulled.

On the other hand, below the roller 9, a pallet 15 to which two overlapping works are transported is positioned. Then, on the pallet 15, the works A and B having an uneven portion on the surface are placed so as to overlap each other. Horns (ultrasonic generating members) 16 and 17 for ultrasonic welding are provided on both sides of the link rods 6 and 7, respectively.

Next, the operation will be described. Pallet 15
Are overlapped with each other by the roller-9.
The air cylinder 12 is actuated and the cylinder rod 13 is protruded.
Ra-9 descends. Due to the lowering of the roller 9, the high portions of the two works A and B on which the roller 9 overlaps are pressed and pressed. At this time, the horns 16 and 17 descend to ultrasonically weld the two works A and B. Then,
The pallet 15 is advanced to weld the lower part, which is the next welded part of the pallet. At this time, each link rod 6,7 is spring 1
4, the link rod 6 moves through the sliding hole 4 in the right direction in the figure without the operation of the air cylinder 12 even when the air cylinder 12 is operated. To maintain the pressed state of the two works AB.
If the work B has an even higher portion, the link rod 6 moves (runs away) through the sliding hole 4 to the left in the figure to maintain the pressed state.

In this embodiment, the spring 14 is used as a means for applying a pressing force.
2, the air pressure may be reduced, and the air cylinder 12 itself may be made a resilient body. That is, the protrusion length of the cylinder rod 13 may be made variable depending on the height of the work. or,
In the present embodiment, when the next work A, B enters below the roller 9, in order to avoid a collision (crash) between the roller 9 and the work A, B, Alternatively, the roller 9 can be moved up and down by the air cylinder 12 in order to avoid interference, but when the transport speed is slow, the impact force between the roller 9 and the works A and B is reduced. Air cylinder 12
May not be required.

[0011]

According to the present invention, the upper ends of the two link rods are slidably disposed above the work positions of the works of different heights which are sequentially conveyed, and the lower ends of the two link rods are connected to each other. A roller is rotatably mounted on the pivot portion, and sliding means for moving at least one of the link rods back and forth is provided. -A work having unevenness formed on the work surface can be kept at all times, and productivity can be remarkably improved.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a front view of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2, 3 Sliding block 4, 5 Sliding hole 6, 7 Link rod 8 Connecting pin 9 Roller 10 Connecting plate 11 Bracket 12 Air cylinder 13 Cylinder rod 14 Spring

Claims (1)

(57) [Scope of request for utility model registration] An upper end of two link rods is slidably disposed above a work position of works of different heights which are sequentially conveyed, and the lower ends of the two link rods are pivotally mounted. B at the pivot
At least one of the link rods
A pressing and positioning device for sequentially conveyed works of different heights, comprising sliding means for moving a link bar back and forth.