JPH09150326A - Equipment mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatize mounting work by bolts, by conveying a mounting equipment, provided with mounting legs, stably in a lower surface of a chassis. SOLUTION: Opposed support legs 11, 21 are provided on a base board 10 conveyed by a robot. Receiving bases 12, 22 loading mounting legs 2a, 2b of a mounting equipment 1 are provided in an upper end part of this support leg, the one receiving base 12 is fixed, and the other receiving base 22 is made movable so as to change a mutual space between the receiving bases. Nut holes 16, 26 opened to an upper end face to hold a nut 7 and bolt insertion holes 17, 27 coaxial to the nut hole are provided in the receiving bases 12, 22. On the support legs 11, 21, the mounting equipment 1 is mounted with mounting legs 2a, 2b upward, the base board 10 is conveyed under a chassis 4, from its upward, a bolt 6 is inserted in a mounting hole 5 of the chassis and a mounting hole 3 of the mounting leg, the bolt is screwed to the put in the receiving bed, so as to perform the mounting of the equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device mounting apparatus for automating the work of screwing a mounting device having mounting legs to the lower surface of a chassis.

[0002]

2. Description of the Related Art Conventionally, when a mounting device such as a motor or a cylinder having mounting legs on the main body is mounted on the lower surface of a chassis, if the mounting device is small and lightweight,
The equipment is supported with the mounting legs facing up under the chassis by hand, and another worker connects the bolts that have passed through the mounting holes from the upper surface of the chassis by tightening the nuts applied to the lower surfaces of the mounting legs. Also, since it is difficult to support the attached equipment by hand if it becomes large and heavy, the holes are aligned with the jack lifted and the bolts inserted from the top of the chassis are inserted in the same manner as above. , It is connected by screwing it into the nut that was inserted by hand under the mounting leg.

[0003]

As described above, when mounting a device under the chassis, the mounting device is stably supported so as not to drop during the work, and the nut and the mounting device are held until the bolts are completely tightened. It was necessary, but it was not stable and dangerous when held by an operator or jack. Also, especially when the space under the mounting legs is small, it is the actual situation that manual work is performed.Therefore, the work of aligning the mounting holes and inserting the nuts into the lower surface of the mounting legs and holding them until the bolts are inserted are held. It is troublesome and takes time to install. The present invention provides a device mounting device that can stably hold a mounted device and can transport the mounted device to a chassis and easily tighten bolts.

[0004]

For this reason, a pair of support legs are provided at both ends of the upper surface of the substrate, the main body of the mounting device is housed between the support legs, and the mounting devices are respectively mounted on the upper ends of the supporting legs. It has a pedestal for mounting the mounting legs of, one pedestal is fixed, the other pedestal is movable so as to adjust the mutual distance, and the nut is not rotated on the upper end surface of each pedestal. It has a nut hole to be stored and held in and a bolt insertion hole that is coaxial with the nut hole.The board on which the device is placed is transported to a specified position on the bottom surface of the chassis, and the mounting hole of the mounting device is aligned with the mounting hole of the chassis. By inserting the bolt from above and rotating the bolt, the nut held in the pedestal is screwed and tightened.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A pair of support legs for accommodating a main body of an attachment device are provided at both ends of an upper surface of a substrate attached to a robot arm or the like, and the attachment device is attached to each upper end portion of the support leg. It has a pedestal for placing legs, one of the pedestals is fixed, the other pedestal is movable so as to adjust the mutual distance, and the nut is not rotated on the upper end surface of each pedestal. A nut hole to store and hold,
Each has a nut hole and a coaxial bolt insertion hole. A positioning pin and a coil spring are housed coaxially with the nut hole in the bolt insertion hole, and the positioning pin is projected from the upper surface of the pedestal by the coil spring, and the positioning pin resists the spring as the bolt is inserted. It is designed to be pushed into the bolt insertion hole. Therefore, by moving one of the receiving bases of the supporting legs provided on the substrate, the opening interval between the receiving bases is increased, and the main body of the mounting device with the mounting legs facing upward is inserted between the supporting legs. Return the moved pedestal to the bottom of the mounting leg of the mounting device, align the mounting hole of the mounting leg with the nut hole of the pedestal, and hold the mounting leg on the upper surface of the pedestal on both sides. Then, the bolt is inserted from above the chassis by aligning the mounting hole of the mounting device with the mounting hole of the chassis, and by rotating the bolt, the nut held in the pedestal is screwed and tightened. Also, by providing the positioning pin protruding from the surface of the pedestal, the position of the mounting leg placed on the pedestal is surely aligned with the position of the nut, and the positioning pin does not hinder the tightening of the bolt by inserting the bolt. It is pressed down against the coil spring.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIG. 1 and 2, reference numeral 1 denotes a mounting device such as a motor or a cylinder, which includes a main body portion 1a and mounting legs 2a and 2b, and at least one mounting hole 3 is provided in each of the mounting legs 2a and 2b. Reference numeral 4 denotes a chassis on the lower surface of which the mounting device 1 is mounted. The chassis 4 has mounting holes 5 and 5 aligned with the mounting holes 3 and 3 of the mounting device 1. 6 is the mounting hole 5
And 3 are bolts to be inserted, 7 is a nut screwed to the bolt 6, 8 is a washer, and 9 is a robot arm. Reference numeral 10 denotes a substrate attached to a wrist 91 provided at the tip of the robot arm 9, and a pair of support legs 11 and 21 are provided on the substrate 10 so as to face each other.
Mount the mounting device 1 on the mounting leg 2 in the space between
It can be stored with a and 2b facing up. 12,
Reference numeral 22 denotes a pedestal provided on the upper ends of the support legs 11 and 21, respectively, and includes a main body portion 1a of the attachment device 1 and attachment legs 2a and 2a.
The pedestal 12 is formed integrally with the upper end portion of the support leg 11 and fixed to the upper end portion of the support leg 11, and the other pedestal 22 is the upper end of the support leg 21. The actuators 15 can be moved toward the receiving base 12 along the rails 14 of the rail base 13 provided in the section, and the distance between the receiving bases 12 and 22 can be changed. Reference numerals 16 and 26 denote nut holes for opening the upper ends of the receiving bases 11 and 21 to hold the nut 7 and the washer 8, respectively, and store the nut 7 so as not to rotate. Numerals 17 and 27 are bolt insertion holes provided coaxially with the nut holes.

Next, the operation will be described. As shown in FIG. 2, the nut 7 and the washer 8 are inserted into the nut hole 16 of the pedestal 12 fixed to the support leg 11 of the board 10 at a position apart from the chassis 4, and the rail pedestal 13 of the support leg 21 is inserted. Similarly, the nut 7 and the washer 8 are inserted into the nut hole 26 of the pedestal 22 that is movably provided. As shown in FIG. 1, the cradle 22 is moved outward along the rails 14 from the support legs 21 to increase the distance between the cradle 12 and the cradle 12. In order to prevent the attachment device 1 supported by another robot (not shown) from hitting the pedestal 12, the pedestal 1
The main body portion 1a is inserted obliquely from the above-mentioned space of 2, 22 and the mounting legs 2a, 2b are stored between the supporting legs 11, 21 with the mounting legs 2a, 2b facing upward. Position it. If there is no reinforcing rib or the like on the mounting leg portion and the pedestal can be inserted from the side as in the illustrated example, the substrate 10
It can be stored from the side. When the attachment device 1 is housed between the support legs 11 and 21, the actuator 15
To move the pedestal 22 below the other mounting leg 2b so that the mounting holes 3 and 3 of the mounting legs 2a and 2b are respectively received.
The mounting legs 2a and 2b are placed on the receiving bases 12 and 22 in accordance with the nuts 7 of the two nut holes 16 and 26. Cradle 2
The movement amount of 2 may be set in advance so that the nuts 7, 7 are aligned with each other in accordance with the intervals of the mounting holes 3, 3 of the mounting device 1.

When the attachment device 1 is placed on the pedestals 12 and 22, the robot 9A places the substrate 10 attached to the wrist 91 of the robot arm 9 on the lower surface of the chassis 4 as shown in the example of FIG. The mounting legs 3 a and 3 b (in FIG. 3, three mounting holes are provided in one mounting leg) of the mounting legs 2 a and 2 b are aligned with the mounting holes 5 and 5 of the chassis 4 to mount the mounting legs. To the bottom surface of the chassis. When the bolt 6 supplied from the other robot 7A from the upper surface of the chassis 4 is inserted into the mounting hole 3 from the mounting hole 5 and pushed in while rotating, the nut 7 housed in the nut hole 16 of the pedestal 12 so as not to rotate. Screw into the nut, and the tip of the bolt 6 is the nut 7.
It comes out from the lower surface into the bolt insertion hole 17 and is tightly coupled. Similarly, the bolt 6 is inserted into the other mounting holes to mount the mounting device 1 on the lower surface of the chassis 4. When the mounting is completed, the board 10 is lowered, the bolt 6 is pulled out from the receiving bases 12 and 22, and the receiving base 22 is pulled back by the actuator 15 to increase the distance between the receiving base 12 and the mounting base 1.
Away from

FIG. 4 shows the same portion as that of FIG. 2 in another embodiment. 7 is a nut, 8 is a washer, 11 is a support leg, 12 is a pedestal, and 16 is an opening on the upper end surface of the pedestal 12. The nut hole 17 is formed, 17 is a large-diameter bolt insertion hole continuously provided under the nut hole 16, 18 is a closing plate that closes the bottom of the bolt insertion hole, and 30 is a positioning pin housed in the bolt insertion hole. The nut 7 inserted into the nut hole 16 is inserted into the screw hole so as to protrude from the upper surface of the pedestal 12. The nut 7 is held by the collar 31 and is engaged with the step 32 between the nut hole 16 and the bolt insertion hole 17. I am combining. A coil spring 33 pushes up the positioning pin 30. In this example,
The positioning pin 30 is held above the bolt insertion hole 17 by the coil spring 33, penetrates the nut 7 and the washer 8, and slightly protrudes from the upper end surface of the pedestal 12.
Mounting stand 12 for mounting leg 2a of mounting device 1 not shown
When it is placed on the top, the positioning pin 30 is inserted into the mounting hole 3 of the mounting leg 2a for positioning, and when the bolt 6 is inserted, the positioning pin 30 is pushed by the tip of the bolt 6 and the coil spring. It descends into the bolt hole 17 against 33.
The bolt 6 and the nut 7 are screwed together. The closing plate 18 can be provided with a hole in the center. In this embodiment, since the positioning pin 30 and the coil spring 33 are housed in the bolt hole 17, the pedestal 12 has a large thickness. Therefore, a space for inserting the pedestal 12 having a large thickness is required between the mounting leg 2a of the mounting device 1 and the main body portion 1a. Further, when there is a larger space on the side of the mounting leg 2 that contacts the pedestal 12 in this way, when the positioning pin 30 is lengthened and the mounting leg 2 of the mounting device is placed on the pedestal 12. By projecting from the mounting hole 3, the chassis 4 can be inserted into the mounting hole 5 and positioned with respect to the chassis 4. Although the other cradle 22 is not shown, it can be configured in the same manner as the cradle 12.

[0010]

As described above, according to the present invention, when the mounting device is mounted on the lower surface of the chassis, a pair of supporting legs are provided on the substrate so as to accommodate the main body of the mounting device, and the upper ends of the supporting legs are provided. Part has a pedestal with one fixed and the other movable, and the main body of the mounting device is stored with the pedestal moving to increase the distance between the pedestals. The mounting device on top of the pedestal, and a nut hole to hold the nut so that it will not rotate and a bolt insertion hole with the same axis as the mounting hole. It can be placed on the pedestal with the legs facing up, and can be transported to the bottom surface of the chassis with the mounting holes of the mounting legs aligned with the nut center of the pedestal. Position and insert from mounting hole It is possible to perform the attachment coupling to the chassis underside the bolts is screwed nut and only by rotation. Therefore, it is not necessary to manually insert and hold the nut, the mounted device can be stably placed on the support leg, and can be conveyed as it is, and the mounting of the device on the lower surface of the chassis can be automated.

Further, the positioning pin and the coil spring are housed in the bolt insertion hole provided coaxially with the nut hole in the receiving base, and the positioning pin is projected from the upper surface of the receiving base,
The protrusion holes can be easily positioned. Note that the positioning pin is pushed down against the coil spring as the bolt is inserted, and it is possible to obtain an effect such that smooth running can be achieved without hindering screwing of the bolt and nut.

[Brief description of the drawings]

FIG. 1 is a side view illustrating a configuration of an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a part of FIG.

FIG. 3 is a perspective view showing an operating state of the embodiment of the present invention.

FIG. 4 is a view corresponding to FIG. 2 showing another embodiment.

[Explanation of symbols]

 1 Mounting Equipment 1a Main Body 2a, 2b Mounting Legs 3 Mounting Holes 4 Chassis 5 Mounting Holes 6 Bolts 7 Nuts 10 Boards 11 and 21 Support Legs 12 and 22 Cradles 16 and 26 Nut Holes 17 and 27 Bolt Insertion Holes 30 Positioning Pins 33 Coil spring 9 Robot arm 91 Wrist

Front Page Continuation (72) Inventor Toshio Nishi, 315, Uzusaino Ino, Naka-city, Fukuoka Prefecture 2 At Yaskawa Equipment Giken Co., Ltd. (72) Inventor Yoshiaki Ito 1-4, Mei Station, Nakamura-ku, Aichi Prefecture Tokai Passenger Railway Co., Ltd. (72) Inventor Masaki Mizutani 1-4-1, Mei Station, Nakamura-ku, Aichi Prefecture Nagoya Tokai Passenger Railway Co., Ltd.

Claims (2)

[Claims] 1. A pair of support legs are provided on a substrate so as to face each other, the main body of the attachment device is housed between the support legs, and the attachment legs of the attachment device are respectively attached to the upper ends of the support legs. It has a cradle to be placed, and one cradle is fixed,
The other pedestal can be moved to adjust the distance between them, and the nut holes are opened in the upper end surface of each pedestal to store and hold the nut so that it does not rotate, and the bolt insertion hole coaxial with the nut hole. A device mounting device characterized by having each of the above. 2. A positioning pin coaxial with a nut hole and a coil spring are housed in the bolt insertion hole, and the positioning pin is projected from the upper surface of the pedestal by the coil spring.
Equipment mounting device.