JPH058029Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for assembling a flywheel to an engine of a vehicle or the like.

(Prior art) Conventionally, in order to assemble a flywheel, the engine assembly, which is transported horizontally, is rotated 90 degrees and erected, and the flywheel is manually attached to the tip of the crankshaft from above. The parts are aligned, fitted, and secured with mounting bolts.

(Problem that the invention aims to solve) However, with the above-mentioned manual work, the alignment of the flywheel and crankshaft differs from person to person, so the working time is not constant, and after the engine assembly is erected, it must be laid down again. There was a problem in that returning to the original state made the work complicated and production efficiency deteriorated.

(Means for Solving the Problems) In order to solve the above problems, the present invention includes a movable bed supported on a machine base, and a swing cylinder unit attached to the movable bed so as to be swingable about an axis pin. a base plate that is forcibly driven by the base plate, a second plate attached to the base plate so as to be movable vertically or horizontally, and a first plate attached to the second plate so as to be movable in a direction perpendicular to the direction of movement of the second plate. plate and
a clamp mechanism attached to the first plate to hold the flywheel; a socket section attached to the first plate and connected to the nut runner to rotate the flywheel mounting bolt; A flywheel mounting device is formed from a positioning mechanism for positioning the first plate before fitting it to the mounting bolts of the wheel.

(Operation) When checking a flywheel with mounting bolts set in advance, first align the first plate and flywheel using the alignment mechanism provided on the first plate, and then insert the sockets on the first plate side. abut against the mounting bolt on the flywheel side.

When the flywheel is then moved and then advanced toward the end of the crankshaft, the alignment mechanism is opened to allow vertical movement of the flywheel.

(Example) An example of the present invention will be described below based on the accompanying drawings.

Fig. 1 is a plan view of a flywheel assembling device according to the present invention, and Fig. 2 is a front view of the same device. . The movable bed 5 is U-shaped when viewed from above, and bearing stands 6, 6 are provided upright on the upper surface of the U-shaped legs, respectively.

On the other hand, above the machine base 2, a first plate 8 equipped with a clamp mechanism 7 for holding the flywheel F is provided.
, a second plate 9 that contacts the first plate 8, and a substrate 10 that contacts the second plate 9, and extend horizontally from the legs 10a, 10a of the substrate 10 to the sides. The shaft pins 10b, 10b are inserted into the holes 6a, 6a of the bearing stands 6, 6. And on the legs 10a of the base 10,
Swing cylinder unit 1 that can be locked to the movable bed 3
The base 10 is connected to the shaft pin 1 by moving the rod tips 11a back and forth.
It is designed to swing around 0b. Note that during rocking, the base 10 passes between the legs formed on the movable bed 5.

Further, below the machine stand 2, a jig pallet 12 on which the flywheel F is horizontally placed, and a holding member 13 for supporting the jig pallet 12 are arranged. Below this holding member 13 is an elevating cylinder rod 1 for elevating and lowering the jig pallet 12.
There are 4.

On the other hand, in the front of the machine base 2, there are mounting pins 15 for horizontally holding the engine assembly W incorporating the crankshaft C, and positioning pins 16 that fit into the recesses on the lower surface of the engine assembly W to regulate the plane position. ，
An engine pallet 17 is provided on which the engine pallet 16 and the engine pallet 16 are erected. The engine pallet 17 is placed on a conveyor 18 that moves intermittently.

Here, the first plate 8 and the second plate 9
The relationship between this and the base 10 will be explained in detail with reference to FIGS. 4 to 7.

Figure 4 is a partially enlarged view of the area around the first plate,
The figures are a view taken along the line A--A in FIG. 4, FIG. 6 is an enlarged view of the clamp mechanism, and FIG. 7 is an enlarged view of the alignment mechanism.

As shown in FIG. 6, the clamping mechanism 7 has a clamper 7c connected to the cylinder rod 7b of the cylinder unit 7a which is engaged with the first plate 8, and the forward movement of the cylinder rod 7b causes the flywheel F to be attached to the first plate. 8 is held between a block 8a and a clamper 7c.

Moreover, sliders 8b, 8b are fixed to the rear surface of the first plate 8 in a horizontal direction. On the front surface of the second plate 9, sliders 8b, 8
Rails 9a, 9a that are in sliding contact with b are fixed,
Further, on the rear surface of the second plate 9, a slider 9b,
9b is fixed in the vertical direction. and base 1
Rails 10c and 10c are fixed to the front surface of the slider 0 so as to be in sliding contact with the sliders 9b and 9b.

Thus, the first plate 8 is movable horizontally and vertically with respect to the base 10 via the second plate 9. Note that this first plate is a small plate 1 erected in front of the base 10.
0d... and the bolts 10e, which are screwed into the small plates 10d so as to be able to move forward and backward, large movements in the vertical plane direction are restricted.

A balance mechanism 19 is slidably fitted to the center of the base 10 via a spherical bearing 19a, and a shaft 19b of this balance mechanism 19 is connected to the center of the first plate via a spherical bush 19c. A balance weight 19d is secured to the rear of the shaft 19b with nuts 19e, 19e.

Thus, this balance mechanism 19 uses the base 10 as a fulcrum and works to lift the first plate 8 upward according to the lever principle. This balance weight 19d can be moved on the shaft 19b by screwing the nuts 19e, 19e.

Furthermore, a nut runner 20 for rotating the mounting bolts B of the flywheel F is provided behind the first plate 8. At the tip of the nut runner 20, a socket portion 20a for connecting a mounting bolt B is provided with the first plate 8 inserted therethrough.

Note that 20b is a spring that urges the socket portion 20a forward.

The base plate 10 is equipped with a first plate alignment device 21. As shown in FIG. 7, this positioning device 21 is for attaching a cylinder unit 21a to a base 10 and moving a lock bar 21b formed at the tip of the cylinder rod back and forth. The first plate 8 is provided with a lock plate 8c through which the lock bar 21b can be freely inserted.

The operation of the flywheel mounting device constructed as described above will be described below.

FIG. 3 is a diagram showing the state before the flywheel is held by the first plate, and the swing cylinder 1
1, the first plate 8 is held facing downward.

On the other hand, the jig pallet 12 on which the flywheel F is placed is a jig pallet conveying means (not shown).
It is transferred onto the holding member 13 below the machine stand 2.

Then, the lifting cylinder rod 14 moves forward,
The jig pallet 12 and the flywheel F are raised, and the flywheel F is brought into contact with the block 8a of the first plate 8. Then, the lock bar 21b of the board 10 is advanced and inserted into the lock plate 8c of the first plate 8. This allows the first
The plates 8 are aligned, and the first plate 8
The socket portion 20a can be brought into contact with the center of the mounting bolt B.

Then, as shown in FIG. 6, the flywheel F in contact with the block 8a is clamped by the clampers 7c of the clamping mechanism 7. After this, machine 2
The lifting cylinder rod 14 retreats below the
The jig pallet 12 is lowered and returned by the jig pallet conveying means.

Next, the base 10 is attached to the swing cylinder unit 11.
As a result, it is rotated around the shaft pin 10b (clockwise in the drawing) and held vertically as shown in FIG. Next, the lock bar 21 of the board 10
b is moved backward to allow the first plate 8 to move in the vertical direction. At this time, the shaft 19b of the balance mechanism 19
is almost horizontal, and the balance weight is 19d.
is adjusted to be in balance with the assembly consisting of the first plate 8, the flywheel F associated with the first plate 8, the clamp mechanism 7, the second plate 9, and the socket portion 20a.

On the other hand, the conveyor 18 in front of the machine platform 2 stops at a position where the engine assembly W is aligned with the center of the flywheel assembly device 1.

Next, the forward and backward movement cylinder 4 of this assembly device 1
By operating the movable bed 5 and moving the movable bed 5 forward, the flywheel F moves and comes into contact with the end C1 of the crankshaft C. At this time, misalignment between the two is avoided because the engine assembly W stops at a position aligned with the center of the flywheel assembly device 1, so the position of the engine assembly W in the height direction and horizontal direction is maintained well. , including the stopping error of the conveyor 18, is approximately several millimeters. And flywheel F
is balanced by a balance mechanism 19, so it can be moved vertically with a slight external force.As shown in Fig. 8, the concave edge of the flywheel F and the end C1 of the crankshaft C are each chamfered. Parts F1 and C2 are formed.

Therefore, after contacting the end C1 of the crankshaft C, the flywheel F has a chamfered portion F1,
C2 slides into contact with each other, moves lightly in the direction of alignment, and is fitted onto the end C1.

At the same time, rotate the nut runner 20,
Completely fit the socket portion 20a at the tip onto the mounting bolt B, and screw the mounting bolt B...

When the attachment of the flywheel F is completed, the clamp device 7 is opened, the movable bed 5 is moved backward, and the conveyor 18 is released from its stopped state.

(Effects of the invention) As explained above, according to the invention, the movable bed 5 supported on the machine base 2 and the swing cylinder unit 11 attached to the movable bed 5 so as to be swingable about the shaft pin 10b. a forcedly driven base 10;
A second component attached to the base 10 so as to be movable vertically or horizontally.
A plate 9, a first plate 8 attached to the second plate 9 so as to be movable in a direction perpendicular to the direction of movement of the second plate, and a clamp mechanism 7 attached to the first plate 8 to hold the flywheel.
, a socket portion 20a attached to the first plate 8 and connected to the nut runner to rotate the mounting bolt B of the flywheel F; and a socket portion 20a attached to the base 10 before the socket portion 20a is fitted to the mounting bolt B of the flywheel. Since the flywheel assembly device 1 is configured from the positioning mechanism 21 for positioning the first plate 8, the first plate 8
The first plate 8 is locked to the base plate 10 by the positioning mechanism 21 and will not shift laterally until the flywheel F in the horizontal position is raised to the vertical position. Then, the flywheel F is brought into contact with the crankshaft C together with the first plate 8 which has been unlocked by the alignment mechanism 21 in the vertical state, and is bolted together. When making contact, if the centers are out of alignment, the first plate can be moved vertically and horizontally, so that the centers can be easily aligned.

Therefore, according to the present invention, there is no need for manual alignment, and the assembly can be completed automatically in a short time while the engine assembly is placed horizontally, resulting in high work efficiency and reduced line stoppage time. It is possible to shorten the time and significantly increase production.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a flywheel assembly device according to the present invention, Fig. 2 is a front view of the same device, Fig. 3 is a front view similar to Fig. 2 showing the operation of the device, and Fig. 4 is a plan view of the flywheel assembly device according to the present invention.
The figure is an enlarged view of the area around the first plate, Fig. 5 is a view taken along arrow A-A in Fig. 4, Fig. 6 is an enlarged view of the clamp mechanism, Fig. 7 is an enlarged view of the alignment mechanism, and Fig. 8 is an enlarged view of the alignment mechanism. FIG. 3 is a diagram showing a state in which a flywheel and a crankshaft are in contact with each other. In addition, in the drawing, 1 is a flywheel assembly device,
7 is a clamp mechanism, 8 is a first plate, 9 is a second plate
plate, 10 is a base, 8b, 9b are sliders, 9a, 10c are rails, 19 is a balance mechanism, 21 is a positioning mechanism, W is an engine assembly,
C is the crankshaft and F is the flywheel.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for assembling a flywheel with mounting bolts set in advance to the end of the crankshaft of an engine assembly of a vehicle, etc. a movable bed, a base mounted on the movable bed so as to be swingable around an axis pin and forcibly driven by a swing cylinder unit, and a second plate mounted on the base so as to be movable vertically or horizontally. , a first plate movably attached to the second plate in a direction perpendicular to the direction of movement of the second plate;
a clamp mechanism attached to the first plate to hold the flywheel; a socket section attached to the first plate and connected to the nut runner to rotate the flywheel mounting bolt; A flywheel assembly device comprising a positioning mechanism for positioning a first plate before fitting it to a wheel mounting bolt.