JPS5938164A - Pallet stoppage positioning device in pallet conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention: When assembling parts onto a light-weight article such as a board for an video by a locomotive operation, the pallet on which the article is placed is stopped at a position for assembling the parts. The present invention relates to a valet stop positioning device that can improve performance.

When assembling a large number of parts onto lightweight articles such as circuit boards and bases to be incorporated into electric machinery, measuring instruments, tazers, etc., the lightweight articles are placed on a pallet and attached to the rotating shaft 4 on the underside of the pallet. In many cases, a pallet transport device is used which controls the traveling and stopping of the pallet by bringing L1-digit driven rollers into frictional contact with the pallet and a drive rotating shaft installed along the traveling rail.

In other words, such a pallet conveying device for lightweight articles is disclosed, for example, in Japanese Patent Publication No. 52-45568, in which the rotational axis of the driven roller is obliquely intersected with the driving axis and the L axis, and the driving roller is driven with the cover door. The pallet is transported by 19 frictional conduction with the rotating shaft.

Therefore, if the axis of rotation of the wave roller and the axis of rotation of the drive are parallel, even if the axis of rotation of the drive is rotating, the driven roller will only rotate idly and the pallet will not be driven forward and will stop. .

Therefore, when stopping a pallet at a position for automatic parts assembly, the driven roller is rotated from an oblique position to a parallel position with respect to the drive rotation axis, but the kinetic inertia of the pallet is Since the peripheral surface frictional resistance with the rotating shaft only acts as a drag force, it is difficult to stop the pallet in a fixed position, and very often the pallet stops after traveling past the fixed position.

When robotizing precision equipment parts assembly, it is essential to accurately stop the pallet on which the assembled items are placed at a predetermined position. Absorption of kinetic inertia by frictional resistance, such as in devices, has the disadvantage that the accuracy of stopping at a fixed position is extremely low.
are doing.

The present invention eliminates two consecutive drawbacks of the prior art, and will be described in detail below with reference to the drawings. Two rails 3, 3' supported on the pedestal 2
It circulates in the direction of the arrow above, stops at the specified group (J) work position, starts when the work of groups 1 and 10 is completed, and returns to the next group (-1 position). The entire assembly work is completed by repeating the steps.On the frame 2'2, there is a rotating shaft 4 for driving the general feed of the bullet 1, which is similar to the rail 3' and 3'. A cover !1ilIL, which is not shown in FIG.
:l-ra 50) pressed against the peripheral surface, and the driven 1. When the axis of rotation of I-ra 5 is oblique to the axis of rotation axis 4, pare, 1
1 is driven forward, and when the rotational axis of the driven 1:, I-ra 5 is aligned 17 lines with the axis of the rotational shaft 4, the pallet 1 stops. Junction 491 I: r - A swing operating plate 6 is fixedly installed on the rar 5, and the swing operating plate 6 is interlocked and connected to m's seats 8 and 8' at the front and rear of the bullet via interlocking rods 7 and 7'. The rotation operating plate 6 is rotated by the spring 9 so that the axis of rotation of the driven 1J-ra 5 obliquely intersects the axis of the rotating shaft 4, and the lever 88 is activated from the front and rear parts of the bullet, respectively. ＼The cam pin 10.10 is attached to the rotating operation plate 6 that rotates so as to protrude.
' is provided protrudingly, and the nuclear force is located near the
A stopper pin 12 is protruded from the bottom side of the barren 1N, and a stopper pin 12 is protruded from the lower side of the barren 1N. Wheels I3 are provided, and a pair of guides I Nora 14 are installed at the front and rear of the pallet 1 to hold the rail 3 therebetween. +4' is rounded and guides C running along the Barren 1 River along rail 3.3'. At the curved rear part of the pallet L, there is a pushing part +4 which pushes and retracts the lever of the adjacent pallet and turns the driven U-ra 5.
15, 15' are provided protrudingly.

A pallet stop positioning device 16 operating between the pin 10 and the stopper pin 11 and I4.
The details of the ψ stop positioning device 1 are shown in FIG. 3 as NY=.

At the same time, a stopper 18 that appears and retracts from the movement path of the strut 11 protruding from the bone surface of the pareso 1 at 31 g to the cylinder device I7 which is ti
and driven 1: A clip protruding from the turning actuating plate 0 of the roller appears on the path of the movement of the pin 10. The stop actuation plate 20 resists the J force and rotates the rotation axis of 5 degrees parallel to the rotation axis of the rotation shaft 40 to a position close to the cam surface 19. □Movement plate 20
"7"'/<Movement path of pin 11. 7. Let stop position □ A determining plate 22 is rotatably mounted, and the stop positioning plate 22 is provided with a
(, when the handle 22 is pushed open against the J force, the Stonovacon 11 is exposed)・Soba■8 is 1 (・When it comes into contact with the i, the splash 2
The stopper pin 11 is pinched between the cam surface 23 which returns 11) by the stopper 18 and the stopper 1
A cam surface 24 that presses 1 with a side force is formed.

Therefore, as shown in FIG. 4, the stopper pin t't
is provided between the bath 18 and the calm 24,
Then, the cam surface 19 of the stop operation plate 20 pushes the cam pin 10 of the swing operation plate 6 until the rotation axis of the 7-ra 5 is aligned with the rotation axis of the rotation shaft 4 at line 11'. Since the pallet l is pushed so that it is in the closest position to the row, a slight forward driving force is transmitted to the pallet l from the rotating shaft 4, and therefore the stopper pin 11 is maintained in a state where it is pressed against the stopper 18 by lightning. , the l-flange surface of the stopper 18 is connected to the front-rear force direction J! of the pallet. : By using the ll* surface, the pallet can be accurately positioned in the front and back direction, and there is no risk of the pallet running backwards.
The reaction force of the cam pin IO pressed by the force of the spring 9 on the 0 force 11 side 9 pushes the pallet 1 onto the measuring rail, Since the stopper pin 11 is similarly pressed in the direction of the side rails by the cam surface 24 of the cam surface 24, Baleno I-1 can be positioned in the left and right direction by the f-law rail.

In addition, in order to ensure the alignment of the pallet at the pallet stop position tW, in cooperation with the pallet stop position determining device 16, the outer support surface t221 of the side force lever is activated. A cylinder device 0 operated from this operates and a dock lever 26 having a V-shaped groove 25 at the tip is installed Lj, and the V
A shaped groove 25 is provided to protrude from the bottom of the barrel 1 and is engaged with the dock bin 12.

As described above, the present invention makes the rotational axis of the driven II-ra not parallel to the axis of the rotational shaft. is transmitted, so when the spring/flange pin of Baleno j~ is pressed against the stopper surface of the spring 1/pa as a reference surface, the cam surface of the stop positioning plate makes contact with the stopper surface. The pallet is clamped between them, and the pallet can be precisely positioned in the longitudinal direction, and the pallet can be stopped in the horizontal direction, as described above. Each time the pallet is pressed, ↓+1 Since the driving force is being transmitted, Paleso 1- can start immediately without causing a start delay due to the retreat of the pallet stop positioning device after work on Group 4-JLJ.

It is also useful for improving work efficiency.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention in a smaller scale; FIG. 1 is a perspective view of the main parts of the 1M bullet feeding device, FIG. 2 is a perspective view of the bottom of the bullet, and FIG.
The figure is a perspective view of the pallet stop and positioning device, and FIG. 4 is a flat 1t11 view of the pallet stop and positioning device. ■...Pallet 3.3'...Baleno 1-Traveling guide rail 4...Rotating shaft 5...Wave 1-
I-ra 6...Swivel operation plate 1o...Cam pin
11...S I Soba pin 17...Cylinder device i1>: I 11-S1-Soba 2o...(j
? tl= Operation 4fi 22...Baren 1-Stop positioning plate

Claims (1)

[Claims] It has a pallet traveling guide rail supported on a pedestal, and a rotating shaft attached to the rail and mounted on the lower surface of the pallet to press against a driven roller that can be rotated to drive the pallet to be conveyed on the rail. In the pallet feeding device, which runs and stops the pallet by controlling the rotation angle and degrees of the driven roller, the axis of rotation of the driven roller is fixed to the rotation chamber axis of the driven roller, and the axis of rotation of the driven roller is set as above. A cam pin (15) is protruded from a rotation actuating plate which is obliquely biased toward the rotating shaft. , a stop operation formed with a cam surface that rotates the rotating plate to a position where the axis of rotation of the driven roller is parallel to and proximate to the rotation axis; a plate is installed between the rails, and when the plate is projected onto the stop plate; A stopper that collides with a stopper pin protruding from the lower surface of the pallet and a cam surface that protrudes into the travel path of the stopper pin and is biased, pinching the stopper pin that collides with the stopper with the stopper and pressing it with side force. Rotate the positioning plate IJJ rsJ function i
The stop operation plate is a bullet stop positioning device that is attached to a pallet feed device that is moved in and out by the control operation of a cylinder device.