JPH0410155Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a parts assembly device for assembling parts to a vehicle body, a machine body, etc. in a production line for automobiles, mass-produced machines, etc.

(Prior Art) In general, assembly factories for automobiles and the like are trying to automate parts assembly work as much as possible in order to strengthen mass production systems. As a device for assembling parts with this type of device, JP-A-59-
No. 102666 discloses workpiece assembly work equipment on a conveyance line. As shown in FIGS. 10 and 11, this work equipment is conveyed from another direction by a roller conveyor 3 to a car body 2 which is suspended and conveyed by an overhead trolley conveyor 1. This is equipment for assembling the engine 4 that is coming. After the engine 4 is assembled, a position detection device 5 is placed along the flow of the vehicle body to confirm its position.
As a further automated version of the above-mentioned system, there is a system that automatically assembles an automobile exhaust pipe 6 to the vehicle body 2, as shown in FIG. 12 (not shown). This assembly process begins with
Of the two holes 8, 8 formed in the rubber bushing 7 called an H-ring, one hole 8 is fitted into the L-shaped support rod 10 fixed to the muffler 9 side, and the other hole is inserted. 8 is fitted into a support rod 10 fixed to a bracket 12 which also has a mounting hole 11 to form an assembly 13. This assembly 13 is attached to both sides of the muffler 9, and the exhaust pipe 6 is located away from the muffler 9.
The assembly 13 described above is attached to the same. In this way, after the exhaust pipe 6 prepared in advance is placed on the assembly device (not shown), it is raised toward the bolts 14 protruding from the vehicle body 2, and each bracket 12 is attached. Fit each bolt 14 into the hole 11. after that,
By raising the nut runner 15 and screwing each bracket 12, the exhaust pipe 6 is automatically assembled to the vehicle body 2.

(Problem to be solved by the invention) In the automatic assembly of the exhaust pipe with the above configuration, it is necessary to assemble the bush and the bracket to the support rod in advance to form an assembly. It is necessary to prepare a separate line. Furthermore, a bracket is required to assemble the exhaust pipe to the vehicle body, making assembly complicated and increasing manufacturing costs.

Therefore, the present invention was devised to solve the above-mentioned problems, and the bushings are automatically fitted into the support rod fixed to the exhaust pipe, and the bushings are fitted onto the support rod that protrudes from the vehicle body. It is an object of the present invention to provide a parts assembly device that is easy to assemble by automatically attaching the parts to the parts.

(Means for Solving the Problems) A feature of the present invention for achieving the above object is that a plurality of horizontally movable frame-shaped base parts are stacked on top of each other on the top of the machine base, and the base A first driving means is provided for lifting the base part on which the positioning pin is erected to the component mounting body, and the base part on which the locating pin is erected. is provided with a second driving means for horizontally moving another arbitrary one base part, and further includes a jig for holding a mounting part to be assembled to the component mounting body on the uppermost base part, and the mounting part. A third driving means is provided, which is assembled to the auxiliary part and allows the gripping part for gripping the auxiliary part to move vertically.

(Function) When assembling the mounting component to the component mounting body with the above configuration, first, the mounting component is supplied to the jig. Next, the auxiliary part is supplied to the gripping part, and the auxiliary part is horizontally moved by the third driving means,
Assembled into mounting parts. Then, the first driving means moves up and the positioning pin provided on the base part engages with the component mounting body, thereby determining the position of the mounting component with respect to the component mounting body. Thereafter, the second driving means moves horizontally and assembles the auxiliary component assembled to the attachment component onto the component attachment main body, thereby automatically realizing a simple assembly operation.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Figures 1 to 3 show an embodiment of the parts assembling device of the present invention, and common parts that have already been explained as the prior art based on Figure 12 are given the same reference numerals. I'll decide. The parts assembly device 16 shown in FIG. 1 automatically attaches an exhaust pipe 6 equipped with a muffler 9 to the body of an automobile (not shown here), and in FIG. This shows the state in which the pipe 6 is placed. This parts assembly device 16 first includes a machine stand 17 on a floor surface 17a,
On the upper surface of the machine stand 17, a rail-shaped first guide part 18 is located parallel to the front side and the back side, and a first sliding part 19, which is engaged with each of the first guide parts 18, 18, is provided.
A frame-shaped first base portion 20 is attached to 19 so that it can move left and right with respect to the drawing. Further, a second guide part 21 is located on the upper surface of the first base part 20 in parallel from the front to the back with respect to the drawing, and each second guide part 21, 21 has a second sliding part 22, 22. This second sliding portion 2
2 and 22, a frame-shaped second base portion 23 is attached to the first base portion 20 so as to be stacked thereon.
can be moved back and forth in the depth direction with respect to the drawing. Further, on both sides of the upper surface of the second base portion 23, cam floors 24 that engage with each other,
24 is installed, and this cam floor 24, 24
A frame-shaped third base portion 25 is supported by. The third base part 25 can rotate around the axis of the bearing 26 by means of a bearing 26 attached between it and the second base part 23 and the above-mentioned cam floor 24. and,
A bracket 28 of a main cylinder 27 as a first driving means is fixed approximately at the center of the third base part 25, and the tip of the piston rod 29 is located so as to overlap the third base part 25. It is fixed to the fourth base part 30, and this fourth
By attaching guide pins 31, 31 to both sides of the base part 30, the fourth base part 30 can be lifted up while being guided by the guide pins 31, 31.
Further, a W cylinder 32 is attached to the fourth base portion 30, and its piston rod (not shown)
is attached to the fifth base part 33, which will be described next, so that the fifth base part 33 is driven in the depth direction with respect to the drawing. And the fourth
Positioning pins 35 are erected on both sides of the upper surface of the base portion 30 so as to engage with reference holes 34, 34 formed in the body of an automobile, which will be described later. A third guide portion 36 is formed inside both the positioning pins 35, 35 in parallel from the front to the back with respect to the drawing.
The sliding parts 37, 37 are engaged with each other, and the fifth base part 33 is attached thereto. Fifth base part 33
An L cylinder 38 is attached as a second driving means, and its piston rod (not shown) is attached to the sixth base portion 39, which will be described next, so that the sixth base portion 39 can be moved left and right in the drawing. It is ready to drive. Fifth base part 3
Fourth guide parts 40, 40 are formed on the upper surface of 3 in parallel to the front side and the back side with respect to the drawing, and fourth sliding parts 41, 41 are engaged with the fourth guide parts 40, 40, and the sixth base 39 is fixed. This allows the sixth base portion 39 to be driven in the left and right and depth directions relative to the drawing. At least a plurality of jigs 42 are attached to the upper surface of the sixth base part 39 so that the exhaust pipe 6 can be placed horizontally as shown in FIG. , lifting cylinders 43, 43 that operate to bring the exhaust pipe 6 closer to the vehicle body are attached. A gripping portion 44 is located above the lifting cylinders 43, 43 to grip the bush 7 interposed between the vehicle body and the exhaust pipe 6 in a predetermined position when the exhaust pipe 6 is assembled to the vehicle body. The bush 7 is well-known and has two holes 8, 8 on the top and bottom, as shown in FIG.
4 and 44 consist of a fixed claw 45 and a movable claw 46, and the movable claw 46 can be opened and closed relative to the fixed claw 45 by a cylinder (not shown).

The process of automatically assembling the exhaust pipe 6 to the L-shaped support rod 49 projecting from the vehicle body 2 as shown in FIG. 4 using the parts assembling device 16 having the above-described configuration will be described. First, the support rod 49 is fixed to the vehicle body 2 in advance by, for example, welding, as described above. On the other hand, the same support rods 10 as described above are fixed to the exhaust pipe 6 at the position of the muffler 9 and at other supporting points by welding. 5 to 9 will be explained, but since these figures are somewhat abbreviated, the explanation will be made with reference to FIGS. 1 and 2.

First, in FIG. 5, this device has main cylinder 2.
7 (not shown in FIGS. 5 to 9) is in the retracted position, the fourth base part 30 is in the lowered position, and the entire upper part thereof is lowered. At this position, the exhaust pipe 6 is supplied onto the jig 42 by a conveying device (not shown), and placed so that the outer wall of the muffler 9 is in contact with the side wall of the jig 42. On the other hand, the button 7 called H-ring
is supplied by a supply device (not shown) and held by a fixed claw 45 and a movable claw 46.

Next, the grip portion 44 is moved horizontally (to the left in FIG. 6) by the cylinder 47, which is the third driving means.
Each support rod 1 has a hole 8 on the lower side of the bush 7 fixed to the exhaust pipe 6 by
It is inserted into 0.

Further, as shown in FIG. 6, as the main cylinder 27 rises, each positioning pin 35, 35
are fitted into reference holes 34, 34 formed in the vehicle body 2. Due to this, the bush 7 is connected to the vehicle body 2.
It is in a predetermined position with respect to a support rod 49 to which the exhaust pipe 6 is attached.

Next, as shown in FIG. 7, the L cylinder 38 is actuated to move the sixth base portion 39 to the left in the drawing so that the left bush 7 is at a position lower than the left support rod 49 of the vehicle body 2. Move it slightly to the left. Then, the lift cylinder 43 on the left side with respect to the drawing is raised and positioned so that the upper hole 8 of the bush 7 held by the grip part 44 faces the tip of the support rod 49 of the vehicle body 2.
Thereafter, by operating the L cylinder 38 and moving the sixth base part 39 to the right in the drawing by a predetermined distance, the hole 8 of the bush 7 is opened in the support rod 4.
9, the left side of the exhaust pipe 6 is attached to the vehicle body 2.

Next, in FIG. 8, the movable claw 46 is opened and the left lifting cylinder 43 is operated to lower it. Due to this, the grip part 44 is attached to the left bush 7.
move away from Further, the L cylinder 38 is actuated to move the sixth base portion 39 rightward in the drawing so that the right bush 7 is slightly to the right of the right support rod 49 of the vehicle body 2. Then, raise the right lifting cylinder 43 and lift the button 7.
With the upper hole 8 facing the tip of the support rod 49 of the vehicle body 2, the sixth base portion 39 is opened by the L cylinder 38.
When the bushing 7 is moved a predetermined distance to the left with respect to the drawing, the bushing 7 is fitted into the support rod 49. Thereafter, by opening the movable claw 46 and lowering the elevating cylinder 43, the process of automatically assembling the exhaust pipe 6 to the vehicle body 2 is completed. The operation of each base portion and each cylinder is locked at a predetermined position by an operation switch or the like (not shown).

Here, we will explain the operation of spontaneously assembling a predetermined exhaust pipe 6 to a type of vehicle body 2, and
Although the cylinder 32 and other base parts are not operated, for example, in different car models with different sizes of exhaust pipes, by operating each base part, support rods can be provided in more places. You can support with support for things that you have. In addition, it is a versatile product that can be used not only when attaching parts to exhaust pipes but also when attaching to long parts and the main bodies of vehicles, machinery, etc.

(Effects of the invention) From the above, the parts assembling device of the present invention automatically assembles the auxiliary parts to the parts to be mounted, and then the auxiliary parts to the parts mounting body. This previously required a pre-process of forming an auxiliary part and another auxiliary part into an assembly, but by eliminating this pre-process, a consistent assembly process has been achieved. This eliminates redundant parts and simplifies the assembly process, reducing manufacturing costs.

[Brief explanation of drawings]

Fig. 1 is a side view showing the parts assembling device of the present invention, Fig. 2 is a schematic sectional view indicated by arrow A-A in Fig. 1, and Fig. 3 is a plan view of the parts assembling device. , FIG. 4 is a perspective view showing a state in which the mounting component is assembled to the component mounting body, FIGS. 5 to 9 are schematic side views showing the process of assembling the mounting component to the component mounting body, and FIG.
The figure is a plan view showing conventional assembly work equipment.
1 is a side view of the equipment shown in FIG. 10, and FIG. 12 is a perspective view showing how an exhaust pipe is assembled to a vehicle body using another conventional assembly device. 2... Parts mounting body (vehicle body), 6... Mounting parts (exhaust pipe), 7... Auxiliary parts (buttons), 17... Machine base, 20, 23, 25, 30,
33, 39... Base part (first base part, second base part, third base part, fourth base part, fifth base part, sixth base part), 27... First driving means (main cylinder ), 35... positioning pin, 38...
Second driving means (L cylinder), 42... jig,
44...Gripping portion, 47...Third driving means (cylinder).

Claims (1)

[Scope of utility model registration request] A plurality of horizontally movable frame-shaped base parts are stacked on top of the machine base, and a positioning pin is erected on any one of the base parts, and the positioning pin is erected. A first driving means for lifting the base portion to the component mounting body is provided, and an arbitrary drive means other than the base portion on which the positioning pin is erected is provided.
A second driving means for horizontally moving two base parts is provided, and a jig for holding a mounting part to be assembled to the component mounting body, and an auxiliary part to be mounted to the mounting part, are provided on the uppermost base part. A parts assembling device comprising: a third driving means for vertically movable a gripping portion for gripping the parts.