JPH0761796A - Sub-assembly transfer loader - Google Patents

Abstract

PURPOSE:To provide a sub-assembly transfer loader, by which the connecting work for sub-assembly which requires complicated motion can be conducted easily and correctly. CONSTITUTION:A sub-assembly transfer loader comprises an arm 2, a transferloader main body 8 for turning the base end part of the arm 2 so that the forward end of the arm 2 is moved to a designated position, and an attachment 9 movably connected to the forward end of the arm 2 to hold the sub-assembly. The attachment 9 includes an engaging part 10 having an engaging means 18 which can be engaged with a sub-assembly, in which the engaging means 18 is disposed in such a manner as to freely oscillate in the vertical direction by a designated angle, and a balancer 15 for supporting a sub-assembly in a designated position with the holding force set to be balanced with the weight of the sub-assembly, with the sub-assembly engaged with the engaging means 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly parts transfer machine for holding a body frame of a motorcycle, which is an assembly part, and transferring it to a predetermined position.

[0002]

2. Description of the Related Art Generally, for example, in a motorcycle assembly line, assembly parts such as body frames, wheels, and engines for each vehicle are transferred to a predetermined position to connect the body frame and wheels, or the body frame and engine. Assembling work is done. When transferring the body frame to a predetermined position, the transfer machine 1 shown in FIG.
Is used. The transfer machine 1 includes an arm 2 and an electrically driven transfer machine body 3 that rotates a base end portion of the arm 2 so that a tip of the arm 2 moves to a predetermined position. A suspension hook 4 is attached to the tip of 2. When the body frame 5 is transferred to a predetermined position by using the transfer machine 1 as described above, the end of the hanging member 6 bent in an inverted V shape is locked at a predetermined position of the body frame 5. Then, the body frame 5 is transferred to a predetermined position by moving the tip of the arm 2 by driving the transfer machine main body 1 with the central portion of the hanging member 6 hanging on the hanging hook 4.

[0003]

By the way, in an assembly line for a motorcycle or the like, for example, the work of aligning the connecting positions when assembling the assembly parts such as the body frame 5 and the engine 7 is complicated by a worker. I am doing it while making various movements. However, it is difficult for the arm 2 that moves by the transfer machine main body 3 to move slightly, and in the conventional transfer machine 1, in order to accurately adjust the connecting position, the operator needs to use heavy parts such as the body frame 5 with both hands. The current situation was to hold it in and spend time.

The present invention has been made in view of the above problems, and provides an assembly parts transfer machine capable of simply and accurately performing an assembly work connecting operation requiring complicated movements. It is an object.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide an assembly parts transfer machine for holding and transferring assembly parts to a predetermined position, the arm and the arm so that the tip of the arm moves to the predetermined position. Of the transfer machine main body for rotating the base end part of the arm, and an attachment movably connected to the tip of the arm for holding an assembly part. The attachment includes an engaging means capable of engaging with the assembly part. An engaging portion that has the engaging means and is arranged to be swingable in the vertical direction by a predetermined angle, and is set to balance the weight of the assembled part when the assembled part is engaged with the engaging part. And a balancer for supporting the assembly parts in a predetermined position by the holding force thus set.

[0006]

According to the assembly part transfer machine of the present invention, when the assembly parts are engaged with the engagement means of the attachment, the assembly parts are held in good balance in the attachment. Then, by moving the arm by driving the main body of the transfer machine, the assembly parts move to the vicinity of the assembly parts to be assembled.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an assembly parts transfer machine of the present invention will be described in detail below with reference to the drawings. The same components as those of the transfer machine 1 shown in FIG. 4 are designated by the same reference numerals, and the description thereof will be omitted. The transfer machine main body 8 used in the present embodiment is an apparatus including a pneumatic drive unit. An attachment 9 is provided at the tip of the arm 2 that is rotated by the transfer machine body 8.

As shown in FIG. 2, the attachment 9 includes an engaging portion 10 for engaging the head pipe 5a of the two-wheeled vehicle and holding the entire body frame 5 in a vertically swingable manner by a predetermined angle, and a body frame. 5 and a balancer that supports the body frame 5 with a holding force set so as to balance the weight of the body frame 5.

As shown in FIGS. 2 and 3, the engaging portion 10 is provided inside the engaging portion main body 14 in a state where only the outer periphery of the central portion (the position indicated by reference numeral 13 in the drawings) is rotatably fixed. Pneumatic jig cylinder 15 that functions as a balancer
Is provided. Then, one end side of the rotating plate 17 is pin-connected to the cylinder rod 15a directed downward of the jig cylinder 15. The rotating plate 17 is rotatably connected to the engaging portion main body 14 through the shaft 16 at a substantially central portion thereof, and has a pin member (engaging means) at the other end portion.
18 is fixed. The pin member 18 is inserted into the head pipe 5a of the body frame 5, and has an outer diameter reduced from the inner diameter of the head pipe 5a.

When the attachment 9 does not hold the body frame 5, the changeover switch SW is turned off and the cylinder 15 is put into an unloaded state, so that the pin member 18 remains stationary at an arbitrary position. Become. Further, when the pin member 18 is inserted into the head pipe 5a to hold the body frame 5, the changeover switch SW is turned on to put the cylinder 15 in a loaded state, and the cylinder rod 15a is contracted due to the weight of the body frame 5. However, the pin member 18 is inclined at a predetermined angle.

Further, the jig cylinder 15 constituting the balancer is pressure-set so that the expansion / contraction force of the cylinder rod 15a becomes a force (holding force) approximately equal to its own weight of the body frame 5, and the body frame 5 is pinned. In the state of being engaged with the member 18, the body frame 5 is supported at a neutral position in which it remains stationary in the air with a holding force set to balance the weight of the body frame 5. Therefore, while the engaging portion 10 holds the body frame 5, when the worker applies an upward force to the body frame 5, the body frame 5 immediately rises, and a downward force is applied. Body frame 5 so as to descend immediately
Are held by the attachment 9 in good balance.

Further, the first joint portion 11 has an engaging portion main body 14
Joint part 19 integrally provided on the upper part of the
A connecting plate 20 that hangs from both sides to close both sides of the connecting portion 19.
a, 20a and a through hole 19a provided in the connecting portion 19
And a rotary shaft 21 continuously inserted into a hole 20b formed in each connecting plate 20a. This allows
The engaging portion 10 is rotatable in the arrow A direction around the rotation shaft 21 shown in FIG. 3 while being connected to the joint member 20.

The second joint portion 12 includes a cylindrical member 22 fixed to the tip of the arm 2, a cylindrical portion 20c of the joint member 20 loosely inserted inside the cylindrical member 22, and a cylindrical member 22. Long holes 22a, 22a bored in the peripheral surface, and engagement pins that are fitted in the radial inside of the cylindrical portion 20c and whose ends project from the peripheral surface of the cylindrical portion 20c and are located in the long holes 22a, 22a. 23 and. As a result, the joint member 20 is rotatable about its axis until the engagement pin 23 contacts the inner peripheral edge of the elongated hole 22a. Therefore, the engagement section 10 rotates about the axis of the arm 2 (see FIGS. 2 and 3). It is rotatable in the direction of arrow B).

Next, the operation and effect of the assembly transfer machine of this embodiment will be described. When the pin member 18 of the attachment 9 is inserted into the head pipe 5a of the body frame 5, the body frame 5 is held in a well-balanced manner while the cylinder rod 15a retracts due to the weight of the body frame 5. Then, by moving the arm 2 by driving the transfer machine body 8, the body frame 5 moves to the vicinity of the engine 7.

The body frame 5 located near the engine 7 is pushed by the operator with a slight force in any of the up and down directions, whereby the engaging portion 10 is pressed.
By the action of the jig cylinder 15, it is possible to make a slight movement in the vertical direction. In addition, since the engaging portion 10 is connected to the first joint portion 11, the swing motion of the body frame 5 can be easily performed. Further, since the second joint portion 12 and the engaging portion 10 are connected via the first joint portion 11, the body frame 5 can be slightly rotated about the axis of the arm 2. Therefore, the transfer machine of the present embodiment does not use the suspension hook 4 as in the conventional device, but uses the attachment 9 including the engaging portion 10, the first joint portion 11 and the second joint portion 12. As a result, the work of connecting the body frame and the engine, which requires complicated movement, can be performed easily and accurately.

In this embodiment, each engaging means of the assembly part and the attachment 9 is a head pipe (concave member).
5a and the pin member (convex member) 18, but, for example, when the assembly part has a convex engaging means, the attachment side has a corresponding concave engaging means. It can be arbitrarily changed according to Unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components are not intended to limit the scope of the present invention thereto, but are merely illustrative examples.

[0017]

The assembly part transfer machine of the present invention does not use a hanging hook or the like as in the conventional device, but has an engagement means capable of engaging with the assembly part and the engagement means is at a predetermined angle. With the engaging portion arranged to be swingable in the vertical direction and the assembled component engaged with the engaging means, the assembled component is placed at a predetermined position with a holding force set so as to balance with the weight of the assembled component. An attachment including a balancer that supports the assembly is used. When the assembly is engaged with the engagement means of the attachment, the assembly is held in the attachment in a balanced manner, and the arm is moved by driving the transfer machine body. By doing so, the assembly parts move to the vicinity of the assembly parts to be assembled, so the assembly work that requires complicated movements can be performed easily and accurately, and significant labor saving can be achieved. .

[Brief description of drawings]

FIG. 1 is a diagram showing an assembly component transfer machine of the present invention.

FIG. 2 is a front view showing an attachment according to the present invention.

FIG. 3 is a side view showing the attachment.

FIG. 4 is a diagram showing a conventional assembly component transfer machine.

[Explanation of symbols]

 2 arm 5 body frame 5a head pipe 7 engine 8 transfer machine body 9 attachment 10 engagement part 11 first joint part 12 second joint part 14 engagement part body 15 jig cylinder (balancer) 15a cylinder rod 18 pin member (engagement) Means) 20 joint member 22 cylindrical member 22a long hole 23 engaging pin

Claims (1)

[Claims] 1. An assembly component transfer machine for holding an assembly component and transferring it to a predetermined position, the arm and a transfer unit for rotating a base end portion of the arm so that a tip of the arm moves to the predetermined position. The mounting machine main body and an attachment that is movably connected to the tip of the arm and holds an assembly component, the attachment having an engagement means that is engageable with the assembly component, and the engagement means. And the engaging portion for oscillating vertically in a vertical direction by a predetermined angle and the holding force set to balance the weight of the assembled component with the assembled component engaged with the engaging means. An assembly parts transfer machine, comprising: a balancer for supporting parts at predetermined positions.