JP4065116B2 - Cable hose support guide device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cable hose support guide device that supports cables such as a power supply cable, a signal cable, and an optical cable.
[0002]
[Prior art]
Various assembly apparatuses and the like are configured to perform a predetermined work on the work unit while moving the work unit in an arbitrary direction. Various elements such as a motor, a solenoid, a camera, and a light source are assembled in the work unit, and cables such as a power supply cable, a signal cable, and an optical cable are connected to these elements. These cables are long, so that it can freely follow the movement of the working unit, the cable is held to the cable hose support guide equipment. Hereinafter, a conventional cable hose support guide device will be described.
[0003]
Figure 5 is cross-sectional plan view of a conventional cable hose supporting guiding device, FIG. 6 is a side view of a conventional cable hose supporting guiding device, FIG. 7 is a front view in the vicinity of the pin of the conventional cable hose supporting guiding device, FIG. 8 is a conventional It is a side view of the electronic component mounting apparatus as an assembly apparatus in which this cable hose support guide apparatus is used.
[0004]
5 and 6, the cable hose support guide device 1 is configured by connecting a large number of unit units 2 in a long chain shape so as to be rotatable with respect to each other (see also FIG. 8). The unit unit 2 is composed of two side pieces 3 on the left and right sides, and a connecting piece 4 that connects the side pieces 3 and the central portion of the end faces of the side pieces 3. A hole 5 is opened at one end of the side piece 3, and a pin 6 projects from the outer surface of the other end. By fitting the pins 6 into the holes 5, the multiple unit units 2 are rotatably connected to each other. The unit unit 2 is made of a synthetic resin.
[0005]
FIG. 8 shows an electronic component mounting apparatus in which the cable hose support guide device 1 is incorporated. A substrate 11 is positioned at the center of the upper surface of the base 10. A large number of electronic component supply units 12 such as tape feeders are provided on both sides of the upper surface of the base 10. Further, columns 13 are erected on both sides of the base 10, and a feed table 14 is installed between the columns 13 and 13. Reference numeral 15 denotes a work unit which moves in the Y direction (lateral direction) along the feed table 14 and is driven by a driving mechanism (not shown) to move in the X direction orthogonal thereto.
[0006]
The work unit 15 is assembled with elements such as a nozzle 16 for vacuum-sucking electronic components, a motor 17 for causing the nozzle 16 to move up and down, a camera 18 for observing the substrate 11 and the like. The cable hose support guide device 1 is arranged in a horizontal posture folded in two on the feed table 14. A large number of cables 19 are held along the cable hose support guide device 1 inside the cable hose support guide device 1 (see also FIG. 5). These cables 19 are connected to the motor 17 and the camera 18. One end of the cable hose support guide device 1 is fixed to the feed table 14 by a bracket 20, and the other end is connected to the work unit 15 by a bracket 21.
[0007]
In the above configuration, the work unit 15 repeatedly mounts the electronic component provided in the electronic component supply unit 12 at a predetermined coordinate position of the substrate 11 while reciprocating between the electronic component supply unit 12 and the substrate 11. In this case, the cable hose support guide device 1 follows the movement of the work unit 15 while being bent. The cable hose support guide device 1 indicated by a chain line in FIG. 8 shows a state in which the work unit 15 has moved to the left electronic component supply unit 12. The cable hose support guide device 1 can be bent freely following the movement of the work unit 15 by rotating around the pin 6.
[0008]
[Problems to be solved by the invention]
The work unit 15 is for mounting electronic components on the substrate 11 at a high speed (for example, two pieces per second), and thus reciprocally moves in the Y direction at a high speed. Accordingly Cable hoses supporting guide apparatus 1 also repeated bending to follow the movement of the working unit 15 continuously. For this reason, the outer peripheral surface of the pin 6 is in sliding contact with the inner peripheral surface of the hole 5 and gradually wears. In FIG. 7, hatched portions indicate portions where the pins 6 are worn. When the pins 6 are worn in this way, the connected state of the unit units 2 is loosened. As a result, the cable hose support guide device 1 hangs down as shown by a broken line in FIG. 8 and obstructs the movement of the work unit 15. This causes problems.
[0009]
Accordingly, an object of the present invention is to provide a cable hose support guide device that can prevent wear of pins that rotatably connect unit units.
[0010]
[Means for Solving the Problems]
The present invention relates to a cable hose support guide device in which unit units are rotatably connected to each other to form a long chain, and a hole formed in one end of a side piece constituting the unit unit, and the hole An annular portion fitted to the annular portion, a flange formed on the back surface of the annular portion, an inner ring portion mounted inside the annular portion, and a plurality of spheres fitted between the annular portion and the inner ring portion A bearing and a pin protruding from the other end of the side piece, and the pin protrudes in a state in which the unit units are connected by fitting the pin into the center hole of the inner ring portion. The inner side piece thus formed serves as a retainer for preventing the bearing from falling off the hole.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention configured as described above, since the unit is connected by fitting the pin into the center hole of the bearing, there is almost no sliding friction between the pin and the bearing. Therefore, even if the unit unit rotates around the pin and bends repeatedly, the pin is hardly worn.
[0012]
Next, an embodiment of the present invention will be described with reference to the drawings. 1 is an exploded perspective view of a cable hose support guide device according to an embodiment of the present invention, FIG. 2 is a plan sectional view of an embodiment of the present invention, and FIG. 3A is an embodiment of the present invention. sectional view in the vicinity of the pin of the cable hose supporting guiding device, FIG 3 (b) is a front view in the vicinity of the pin of the cable hoses supporting guide apparatus of an embodiment of present invention.
[0013]
The cable hose support guide device 30 is formed by connecting a large number of unit units 31 to each other in a long chain shape. The unit unit 31 includes two side pieces 32 on the left and right sides, and a connecting piece 33 that connects the side pieces 32 and the central portion of the end face of the side piece 32. The unit unit 31 is made of a synthetic resin.
[0014]
A hole 34 is opened at one end of the side piece 32, and a pin 35 projects from the outer surface of the other end. A bearing 36 is mounted in the hole 34. The bearing 36 is fitted between the annular portion 36a, the flange 36b integrally formed on the back surface of the annular portion 36a, the inner ring portion 36c attached to the inner side of the annular portion 36a, and the annular portion 36a and the inner ring portion 36c. It consists of a plurality of spheres 36d. As shown in FIGS. 2 and 3, the annular portion 36a is forcibly fitted into the hole 34, and the pin 35 is fitted into the center hole 36e of the inner ring portion 36c from the inside. The flange 36b is mounted on the inner surface side of the side piece 32, and the inner side piece 32 from which the pin 35 protrudes in a state where the pin 35 is fitted in the center hole 36e of the inner ring portion 36c is provided with the bearing 36. This prevents the bearing 36 from coming off from the hole 34.
[0015]
FIG. 3 shows a state in which the pin 35 is fitted in the center hole 36e of the inner ring portion 36c. In this state, the pin 35 rotates relative to the bearing 36 in the direction of the arrow. Accordingly, the inner ring portion 36c can also freely rotate, so that the sliding contact force with which the outer peripheral surface of the pin 35 is in contact with the inner peripheral surface of the inner ring portion 36c is extremely small. The inner peripheral surface of the portion 34 does not wear at all or hardly.
[0016]
FIG. 4 is a side view of an electronic component mounting apparatus in which the cable hose support guide device 30 is incorporated. The configuration of the electronic component mounting apparatus is the same as that of the conventional technique shown in FIG. 8 except for the cable hose support and guide apparatus 30. Therefore, the same reference numerals as those in FIG.
[0017]
In the above configuration, the work unit 15 repeatedly mounts the electronic component provided in the electronic component supply unit 12 at a predetermined coordinate position on the substrate 11 while reciprocating between the electronic component supply unit 12 and the substrate 11 in the Y direction. To go. In this case, the cable hose support guide device 30 follows the movement of the work unit 15 while being bent. Cable hoses supporting guide apparatus 30 is bent by the unit unit 31 to each other to rotate the pin 35 in the center to each other, the pin 35 is fitted into the center hole of the inner ring portion 36c, the outer peripheral surface of the pin 35 No sliding friction is generated between the inner peripheral surface of the central hole and the pin 35 is not worn.
[0018]
In the present embodiment, the case where the cable hose support guide device 30 is applied to an electronic component mounting apparatus has been described as an example. However, the cable hose support guide device 30 can also be applied to other assembly devices.
[0019]
【The invention's effect】
In the present invention, since the unit is connected by fitting the pin into the center hole of the bearing, there is almost no sliding friction between the pin and the bearing. Therefore, even if the unit unit rotates around the pin and bends repeatedly, the pin is hardly worn, and the service life of the cable hose support guide device can be extended.
[Brief description of the drawings]
Figure 1 is an exploded perspective view plan sectional view [FIG 3] (a) present in an embodiment of a cable hose supporting and guiding device of the present invention; FIG cable hoses supporting guide apparatus of an embodiment of the present invention cross-sectional view in the vicinity of the pin of the cable hoses supporting guide apparatus of one embodiment of the invention (b) of one embodiment of a front view of the vicinity of the pin of the cable hoses supporting guide apparatus of one embodiment of the present invention; FIG of the present invention side view of an electronic component mounting apparatus according to Figure 5 of a conventional cross-sectional plan view of a cable hose supporting guiding device 6 is a side view of a conventional cable hose supporting guiding device 7 conventional cable hoses supporting guide apparatus Front view of the vicinity of the pin [FIG. 8] Side view of the electronic component mounting apparatus as an assembly apparatus using the conventional cable hose support guide apparatus
30 cable hose support guide device 31 unit unit 32 side piece 33 connecting piece 34 hole 35 pin 36 bearing 36a annular part 36b flange 36d sphere 36e center hole

Claims (1)

Rotatably connecting the basic units to each other a cable hose supporting guiding device for a long-chain, and the hole which is opened in the one end portion of the side pieces constituting the unit unit, fitted into the hole A bearing comprising: an annular portion to be formed; a flange formed on the back surface of the annular portion; an inner ring portion mounted on the inner side of the annular portion; and a plurality of spheres fitted between the annular portion and the inner ring portion; A pin projecting from the other end of the side piece, and in a state in which the unit units are connected by fitting the pin into the center hole of the inner ring portion, A cable hose support and guide device, wherein the side piece serves as a stopper that prevents the bearing from falling off the hole.

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