JPH0422903Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention grasps and advances a transmission in a vehicle engine assembly that is positioned and on standby. The present invention relates to a transmission assembling device that can easily fit together the coupling groove at the tip of the main shaft in the transmission by following the coupling groove in the clutch.

(Prior art) When assembling a transmission into a vehicle engine assembly, the engine assembly being conveyed on a conveyor is turned over 90 degrees so that the side to which the transmission is to be joined is facing up, and a worker lifts the engine assembly onto the lifter. It was common practice to lower and assemble the suspended transmission using a device.

However, since the coupling grooves, such as serrations, carved into the tip of the main shaft in the transmission are covered by the transmission case, they are easily attached to similar coupling grooves in the clutch provided at the end of the engine assembly. Since they cannot be mated, the operator has to use the weight of the transmission to forcefully perform the mating operation, and there is a risk of damaging the coupling groove.

Therefore, in Japanese Patent Application Laid-Open No. 59-93224, the transmission is suspended and supported in a fixed state using a positioning pin provided on a simple jig placed on the attachment and a spline fitting part, and the transmission is advanced into the engine assembly. A device for assembling both is disclosed.

(Problem to be solved by the invention) However, according to such conventional technology, since the transmission is fixedly suspended and supported from a simple jig, the center line between the engine assembly and the transmission is Even if the two are slightly misaligned, it will be difficult to assemble the two. Therefore, the attachments for the engine assembly and transmission, the positioning structure for both, the positioning structure between the simple jig and the attachment, the positioning pins and spline fittings provided on the simple jig to suspend and support the transmission are required. Accuracy control in departments, etc. had become strict.

Therefore, the purpose of the present invention is to eliminate the need for a positioning structure with strict precision control when advancing a transmission to a vehicle engine assembly that is positioned and on standby and fitting the coupling grooves between the two. By holding the transmission in a simple floating manner without causing damage, it is possible to easily fit the coupling groove on the transmission side by following the coupling groove on the engine assembly side and assemble it. The goal is to provide transmission assembly equipment that can.

(Means for Solving the Problems) In order to solve the above problems and achieve the purpose, the present invention aims to move forward by grasping the transmission T with respect to the vehicle engine assembly E which is positioned and on standby. At the same time, a device for assembling the engine assembly E by engaging the coupling groove St at the tip of the main shaft M in the transmission T with the coupling groove Se in the clutch C provided at the end of the engine assembly E is moved forward and backward relative to the engine assembly E. A vertical substrate 41 to be operated and the substrate 4
1; a gripping device 100 provided on the swing plate 51 to grip the transmission T at the front; and a support protruding forward from the base plate 41. a rod 42 and the support rod 42
A bearing 43 is interposed with a slight gap 45 formed between the base plate 41 and the rocking plate 5, and the base plate 41 and the rocking plate 5
1, the ball 62 is pressed against the receiving part 65 to fix the swinging plate 51 to the base plate 41, and the ball 62 is separated from the receiving part 65 to allow the swinging plate 51 to swing. a device 61, elastic bodies 71 and 75 that are interposed between the substrate 41 and the swing plate 51 to buffer the downward movement of the swing plate 51, and elastic bodies 71 and 75 that are installed between the base plate 41 and the swing plate 51 to swing the swing plate 51; It is characterized by comprising a link mechanism 81 that maintains the downward movement of the plate 51 in parallel.

(Function) When the transmission T is advanced with respect to the vehicle engine assembly E which has been positioned and is on standby, and the coupling grooves Se and St of both are brought into engagement, the ball 62 is removed from the receiving portion 65 of the regulating device 61. When retracted, the swing plate 51 swings left and right with respect to the board 41 due to its own weight and descends a little. In other words, the downward movement of the rocking plate 51 is allowed by a small gap of 45 minutes formed between the inner circumference of the bearing 43 and the outer circumference of the support rod 42.
In addition, the downward movement is carried out gradually while being buffered by compressive deformation of the elastic bodies 71 and 75, etc.
They are maintained parallel by the link mechanism 81. Since the gripping device 100 is supported so as to be able to swing slightly relative to the base plate 41 in this way, even if the phases of both coupling grooves Se and St are shifted, the engine assembly E
It is possible to easily fit the coupling grooves Se and St while correcting the phase shift by causing the transmission T to follow the movement.

(Example) Examples will be described below based on the accompanying drawings.

1 and 2 are a side view and a plan view showing the entire assembly apparatus of the present invention, in which 1 is a conveyor, 5 is a rail, and the rail 5 is arranged perpendicularly to the conveyor 1. An engine assembly E is positioned and mounted on the upper pallet 2 via an attachment 3, and the engine assembly E is placed on standby with a clutch C provided at the end aligned with the extension line of the rail 5. A transmission T is positioned and placed on a pallet 6 on the rail 5 via an attachment 7, and the transmission T is positioned by a positioning pin 8 with its mounting surface A to the engine assembly E facing down. Furthermore, the transmission T is transferred from a transport device (not shown) onto the pallet 6,
The pallet 6 is also moved forward on the rails 5 by a drive source (not shown), and the transmission T is placed on standby below the assembling machine 10.

An assembly machine 10 is installed on a machine frame 1 that straddles the upper part of the rail 5.
1, and a rail 12 is installed on the machine frame 11.
A machine base 2 moves forward and backward on the upper part by the engagement of a rack 14 driven by a motor 13 and a pinion (not shown).
1 is placed thereon, and a slider 25 is provided on the front surface of the machine base 21, and the slider 25 is moved up and down along the rail 22 by the engagement of a rack and pinion (not shown) driven by a motor 23. Chain 1 is used for the lifting motor 23.
5. It is connected to a balancing cylinder unit 19 via two fixed pulleys 16, 17 and one moving pulley 18, and the load on the motor 23 is reduced by this balancer mechanism.

Further, the slider 25 is equipped with a gripping device 100 via a reversing device 31, and the reversing device 31 is pivotally connected to two cylinder units 32 that are pivotally supported on the left and right sides of the slider 25 in the front and downward direction, and a piston rod 33 that projects forward thereof. It consists of a lever 34 and a rotation shaft 35 fixed to this lever 34. The rotation shaft 35 is rotatably supported by a bracket 26 protruding forward and downward from the left and right sides of the slider 25, and is fixed to a bracket 46 protruding forward from the left and right sides of the base plate 41 of the gripping device 100. This rotating shaft 35 is rotated by the cylinder unit 32 at an angle of 90°.

The gripping device 100 is as shown in FIGS. 3 to 5, and as shown in the drawings, it is disposed in front of the substrate 41 in the vertical direction and is provided on a parallel swinging plate 51. There are three support rods 42
is provided protrudingly, and a swing plate 51 is supported in a floating manner at the tip of this support rod 42 via a bearing 43. That is, the front and rear thrust bearings 43 are interposed at the tip of the support rod 42 to support the rocking plate 51 at three points, and the inner race 44 of the thrust bearing 43 fitted in the support hole 52 of the rocking plate 51 A slight gap 45 of about 0.5 mm is formed between the circumference and the outer circumference of the support rod 42.

Further, a regulating device 61 is provided between the substrate 41 and the swing plate 51.
and elastic bodies 71 and 75 are interposed, and a link mechanism 81 is installed.

Two air chambers 63 that house balls 62 and open toward the front are fixedly installed on the upper left and right sides of the base plate 41, and two air chambers 63 that open toward the front and accommodate balls 62 are fixedly installed on the upper left and right sides of the swing plate 51. A receiving portion 65 is fixedly provided, thereby configuring the regulating device 61. When air is supplied to the air chamber 63 from the port 64, the ball 62 moves forward due to the air pressure and is pressed into the receiving part 65, the rocking plate 51 is fixed to the base plate 41, and the air supply is stopped. Then, the rocking plate 51 moves against the substrate 41 due to its own weight.
In contrast, it swings slightly and descends by the gap of 45 minutes.

Two elastic bodies 71 made of relatively hard rubber and having a circular shape when viewed from the front are fixed on the upper left and right sides of the rear surface of the rocking plate 51, and two plates 72 that are in contact with the rear surface of the elastic bodies 71 are fixed on the upper left and right sides of the front surface of the board 41. Fixed. Further, two brackets 76 and 77 are provided on the lower left and right sides of the front surface of the board 41 and the rear surface of the rocking plate 51, respectively, located on the upper and lower sides. Elastic bodies 75 having an inverted W shape in view are interposed one by one in a fixed state. When the rocking plate 51 descends, the upper elastic body 71 is in surface contact with the plate 72 due to the friction, and the lower elastic body 75 is compressed and deformed between the brackets 76 and 77. The descending motion is gradually performed while buffering each.

Two links 83 are pivotally supported by pins 82 on the lower left and right sides of the front surface of the board 41. A horizontally long link 84 is pivotally connected between the links 83 by pins 85, and pins 85 at both ends. A link 86 is pivotally attached to the rear surface of the rocking plate 51, and both links 86 are pivotally supported by a pin 87 on the rear surface of the swing plate 51. As a result, a link mechanism 81 is installed between the base plate 41 and the rocking plate 51, and the link mechanism 81 maintains the downward movement of the rocking plate 51 parallel to the base plate 41.

A gripping device 100 provided on the swing plate 51
is constructed as follows.

Three cylinder units 1 are installed via brackets 53 at the upper left and right and lower center of the front surface of the swing plate 51.
01 is installed, and a support arm 104 is pivotally supported by a pin 103 to a piston rod 102 that protrudes forward. Forms a curved shape where they touch each other. This support arm 1
04 and a fixed plate 54 fixed to the bracket 53, a link 107 is pivotally connected by pins 108 and 109, so that the support arm 104 swings about the pin 109 on the fixed plate 54 side as a fulcrum. Further, a stopper 106 fixed to the support arm 104 comes into contact with a stopper 55 fixed to the fixed plate 54 to restrict the movement of the support arm 104.

One cylinder unit 111 is installed in the middle of the rear surface of the rocking plate 51, and a piston rod 112 that penetrates through the rocking plate 51 and protrudes forward has a support that comes into contact with the rear end surface B of the transmission T at the tip. A cylinder unit 113 is fixedly installed, and one cylinder unit 121 is also installed at the center of the lower end of the rear surface of the swing plate 51. A rack bar 123 that passes through the swing plate 51 and projects forward is integrally connected to the piston rod 122 of the cylinder unit 121.
A small pinion 124 supported on a bracket 56 meshes with the rack bar 123.
A longitudinal rack bar 126 meshes with a large pinion 125 coaxially and integrally provided with the pinion 24. This rack bar 126 is also supported by the bracket 56, and its upper end abuts against the lower surface D of the transmission T.

Note that the swing plate 51 has a plurality of positioning pins 131.
and a nut runner device 141.

Furthermore, a phase indexing device 200 as shown in FIGS. 1 and 2 is provided between the assembly machine 10 and the conveyor 1.
is installed.

In the above, the machine frame 21 of the assembly machine 10 is the machine frame 1.
The slider 25 is placed on standby at the retracted position of the rail 12 on the machine base 21, and the slider 25 is placed on standby at the raised position of the rail 22 in front of the machine base 21, and the reversing device 3 provided on the slider 25
Piston rod 33 of cylinder unit 32 of No. 1
The swing plate 51 with the gripping device 100 and the substrate 41 are held in a horizontal state, and the swing plate 51
is fixed to the substrate 41 by the regulating device 61.

When the pallet 6 on which the transmission T is positioned and placed moves forward on the rail 5 and stops at a fixed position below the machine frame 11, the slider 25 is lowered by the operation of the motor 23, and the slider 25 is moved downward by the rocking plate 51 below. The positioned positioning pin 131 is inserted into an appropriate tightening hole H drilled around the mounting surface A of the transmission T to the engine assembly E to perform positioning, and the socket 14 of the nut runner device 141 is inserted.
2 holds the head of bolt b which has been previously inserted into another tightening hole H in the previous step.

Next, the cylinder unit 101 of the gripping device 100
The piston rod 102 is extended by the operation, and the support arm 104 is rotated so that its tip 105 comes into contact with the assembly surface A of the transmission T from below and is supported at three points. Next, the piston rod 112 is extended by the operation of the cylinder unit 111, and the support 113 at the tip thereof is attached to the upper surface B of the transmission T.
bring it into contact with. Continue with cylinder unit 121
The piston rod 122 is extended by this action, and the tip of the rack bar 126 is brought into contact with the outer peripheral surface D of the transmission T via the integrated rack bar 123, small pinion 124, and large pinion 125.

After the transmission T is gripped by the gripping device 100, the slider 25 is raised again by the operation of the motor 23 to lift the transmission T from the pallet 6, and then the piston rod is lifted by the operation of the cylinder unit 32 of the reversing device 31. 3
3 is retracted, and the rotating shaft 35 is rotated by 90° via the lever 34 to change the attitude of the substrate 41 and the swing plate 51 to the vertical state as shown in the figure. As a result, the gripping device 10
The transmission T held at 0 is reversed so that its assembly surface A faces forward. At this time, the center lines of the engine assembly E and the transmission T are set in advance so that they substantially coincide.

Next, the machine base 21 moves forward to a fixed position by the operation of the motor 13 and stops. Then, the phase indexing device 2
00 operates to align the serration Se in the clutch C of the engine assembly E with the serration St at the tip of the main shaft M in the transmission T.

After completing the phase alignment of the coupling grooves Se and St,
The machine base 21 moves forward by the operation of the motor 13 again, and stops when the transmission T approaches the engine assembly E.

Then, when the air supply to the air chamber 63 of the regulating device 61 that had fixed the swing plate 51 to the base plate 41 is stopped, the ball 6
2 retreats, and the rocking plate 51 moves the board 4 due to its own weight.
1, it swings left and right and descends a little.

That is, the downward movement of the rocking plate 51 is allowed by a small gap of about 0.5 mm formed between the inner circumference of the bearing 43 and the outer circumference of the support rod 42, and at that time, the upper elastic body 7
1 is in surface contact with the plate 72, and due to the friction, the lower elastic body 75 is brought into contact with the bracket 76,
By compressing and deforming at 77, the downward movement is gradually performed while being buffered. On the other hand, the substrate 41
and a link mechanism 81 installed between the lower part of the swing plate 51
As it descends, the link 86 on the rocking plate 51 side slightly rotates upward around the pin 87, and the link 83 on the board 41 side connects to the pin 82 via the horizontal link 84.
As a result, the swing plate 51 descends while being maintained parallel to the floor surface.

Next, the cylinder unit 101 of the gripping device 100
, the piston rod 102 is retracted by the operation of Assembly surface A of transmission T is attached to engine assembly E.
bring it into contact with.

Here, the phase alignment of the serration St on the transmission T side and the serration Se on the engine assembly E side has been completed using the phase indexing device 200, but due to vibrations, etc., both serrations
Even if the phases of Se and St shift, the swing plate 51 equipped with the gripping device 100 can swing slightly relative to the substrate 41, so while correcting the phase shift, both serrations Se, St can be easily fitted together, and the assembly surface A of the transmission T can be brought into contact with the engine assembly E following the engine assembly E.

After completing such combination, the nut runner device 141
, and firmly tighten both with bolt b. Next, the positioning pin 131 is retracted, and the machine base 21 is retracted by the operation of the motor 13 to retract the gripping device 100 from the transmission T, and the other cylinder units 111, 121 of the gripping device 100 are
etc. are also returned to their original positions, and the assembly machine 10 is made to stand by at the initial position.

Then, air is supplied into the air chamber 63 of the regulating device 61 to press the ball 62 into contact with the receiving part 65, and the swinging plate 51 is slightly raised by the centripetal action of the ball 62 into the receiving part 65 and fixed to the base plate 41. do.

In this way, it is prepared for the next assembly.

Note that any specific structure of the gripping device 100 may be adopted. Further, the coupling groove portion may be a spline.

(Effects of the invention) As described above, according to the invention, when the transmission is moved forward and assembled into a vehicle engine assembly that has been positioned and is on standby, the gripping device of the transmission is attached to the board. Because it is supported so that it can swing slightly, it has a simple floating structure without requiring a positioning structure with strict precision control, and it can be attached to the transmission side by following the coupling groove on the engine assembly side without causing damage. The coupling grooves can be easily engaged and assembled.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a side view and a plan view showing the entire assembly device of the present invention, FIG. 3 is a partially cutaway side view showing the relationship between the board, the rocking plate, and the gripping device, and FIG. A front view seen from the board side, and FIG. 5 is a side view of the board and the rocking plate portion. In addition, in the drawing, 10 is an assembly machine, 31 is a reversing device,
41 is a substrate, 42 is a support rod, 43 is a bearing, 45 is a gap, 51 is a rocking plate, 61 is a regulating device, 62 is a ball, 63 is a chamber, 65 is a receiving part, 71, 7
5 is an elastic body, 81 is a link mechanism, 100 is a gripping device, E is an engine assembly, C is a clutch, Se is a coupling groove, T is a transmission, A is an assembly surface, M is a main shaft, and St is a coupling groove. It is.

Claims (1)

[Scope of Claim for Utility Model Registration] A transmission is gripped and moved forward with respect to a vehicle engine assembly that is positioned and on standby, and the transmission is inserted into a coupling groove in a clutch provided at an end of the engine assembly. A device for fitting and assembling the coupling groove at the tip of the main shaft in the engine assembly, which comprises: a vertical board that moves forward and backward with respect to the engine assembly; a rocking plate that is disposed forward in parallel with the board; a gripping device provided on the rocking plate and gripping the transmission at the front; a support rod protruding forward from the base plate; and an intervening device with a small gap formed between the support rod and the rocking plate. a bearing interposed between the board and the rocking plate, the ball is pressed into contact with the receiving part to fix the rocking plate to the board, and the ball is released from the receiving part to allow the rocking plate to swing. an elastic body interposed between the base plate and the rocking plate to buffer the downward movement of the rocking plate; and an elastic body installed between the base plate and the rocking plate to damp the downward movement of the rocking plate. A transmission assembly device consisting of a link mechanism that maintains parallelism;