JP2572264B2 - Inspection method and inspection line for automatic transmission and transport pallet for automatic transmission - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection method, an inspection line, and a transport pallet for mainly performing a completion inspection of an automatic transmission mounted on an automobile.

(Prior Art) Conventionally, in this type of inspection, after setting a transmission on a set table provided in an inspection device, mounting various sensors provided in the inspection device to the transmission and transmission products of the transmission. After connecting the control cable to the transmission case and connecting the hose to the oil supply / drain port of the transmission case, and then refueling the case, the main shaft of the transmission is rotated by the drive source provided in the inspection device. Signals from various sensors are input to the monitor of the inspection device via sensing cables connected to the sensors to determine pass / fail, and thereafter, oil is drained from the case, and the sensors, control cables, and hoses are removed.

Here, the work of attaching the sensors and the like before inspection and the work of removing the sensors and the like after inspection must be performed manually, and it takes time before and after the inspection. It is impossible to carry out the inspection, and a so-called sampling inspection in which several assembled missions are arbitrarily extracted from the assembly line is generally used.

(Problems to be Solved by the Invention) In the original completion inspection, it is ideal that all the finished products are inspected to increase the reliability of the products.

The present invention divides the work of completion inspection and the work of attaching and detaching sensors and the like required before and after the completion inspection so that an efficient inspection can be performed by a flow operation, and all the finished products can be inspected. An object of the present invention is to provide an inspection method and an inspection line for an automatic transmission and a transport pallet for the automatic transmission.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an automatic transmission using a drive source provided in an inspection device after supplying transmission oil into a case of an automatic transmission assembled on an assembly line. The main shaft is rotated, and signals from various sensors attached to the transmission are input to the inspection device to perform the completion inspection. An inspection station in which the oil supply device, the inspection device, and the oil drainage device are arranged in three parts is provided in the part, and a sensing cable connected to the sensor and a control cable connected to the electric transmission product of the automatic transmission are connected to the transport pallet. A flexible electric system connector and a hydraulic system coupler capable of connecting a hose connected to a supply / drain port of a transmission case are provided. The invention is characterized in that a coupler that can be freely connected to and separated from the coupler is provided on the oil drainage device, and a connector that is freely connected to and separated from the connector is provided on the inspection device. And, in this case, a leak inspection device that performs a leak inspection of the case of the automatic transmission is disposed in front of the oil supply device, or a coupler that can be freely attached to and detached from the coupler of the transport pallet is provided in the inspection device. An oil cooler connected to the coupler by piping is provided, and further, the mission oil extracted by the oil drainage device is returned to the oil supply device,
It is preferable to use the mission oil in circulation.

Further, the transport pallet is provided with a jig table for holding the automatic transmission on the pallet body provided with the connector and the coupler so as to be able to move up and down. It is desirable to be able to be inverted to a horizontal position, and it is preferable to provide a storage tray for storing accessories used for inspection on the pallet body.

(Operation) For the automatic transmission fixed to the transport pallet and sequentially moving forward on the transport path, before the inspection station, the work of mounting the sensor on the automatic transmission and the connector between the automatic transmission and the transport pallet are performed in advance. And perform wiring work for sensing cables, control cables, and hoses between the coupler and the coupler, and then connect the coupler of the lubricator to the coupler of the transport pallet with a lubricator to lubricate the mission oil, and then use the inspection device. Perform the completion inspection by connecting the connector of the inspection device and the connector of the transport pallet, and then connect the coupler of the oil drainage device and the coupler of the transport pallet with an oil drainage device to extract the mission oil, and then Behind the inspection station, the sensor, sensing cable, control cable and hose Remove carry out the work.

In this way, by performing the attachment and detachment work of the sensor and the like required before and after the completion inspection, that is, the attachment and detachment work of the sensor and the attachment and detachment work of the sensing cable, the control cable and the hose on the transport path before and after the inspection station, The efficiency can be improved by dividing the work between the completion inspection and the work before and after the completion inspection.

By recirculating the mission oil extracted by the drainage device to the lubrication device, the transmission oil can be circulated and used. Further, by performing a leak test prior to lubrication by the lubrication device, the transmission case is improved. After checking the suitability of the oil supply, the operation can be shifted to the refueling operation. Further, by providing the inspection device with a coupler connected to the transport pallet, the connection to the oil cooler can be easily performed, and the efficiency of the operation can be promoted as a whole.

By making the jig stand of the transfer pallet undulating,
The automatic transmission can be inverted between a downward vertical posture and a horizontal horizontal posture.The transmission is set on the transport pallet in a vertical posture to facilitate the setting work. Inspection can be performed under the same conditions as above, and a storage tray for storing accessories used for inspection can be provided on the transport pallet, so that these components can be transported from the rear part of the transport path where they are removed. It can be circulated and transported on a transport pallet at the front part of the road, which can further promote work efficiency.

(Example) A case where the present invention is applied to a completion inspection of the automatic transmission M shown in Fig. 25 will be described.

The completion inspection is performed on the case Ma of the assembled automatic transmission M.
The oil outlet Mb and oil return port Mc for the oil cooler shown in Fig. 26
And a drain port (not shown) to supply the transmission oil, then rotate the main shaft Me of the transmission M via the adapter Md, and rotate the manual valve Mf shown in FIG. 27 to the control cable Mg. Switch operation,
At the same time, in response to the switching operation, an input signal is sent to a shift control solenoid valve (not shown) provided in the transmission M to perform a shift operation. In response to these operations, main devices such as a hydraulic clutch of the transmission are operated. Whether the transmission is operating properly is detected by a sensor formed of a hydraulic switch inserted into each of the detection ports Mh shown in FIG. 28, and the propriety of the transmission is determined. Complete.

Referring to FIG. 1, reference numeral 1 denotes an inspection line. The inspection line 1 extends a conveyor 4 as a conveyance path between an assembly line 2 and a payout line 3 on the other side. Clamp device 5, leak inspection device 6, inspection station 7, and unclamping device 8 from the starting side on the left side in the direction
A transport pallet 9 for mounting and fixing the automatic transmission M to be inspected is placed on the transport conveyor 4, and is transferred from the assembly line 2 by a transfer device (not shown). The automatic transmission M transferred onto the transport pallet 9 is fixed on the transport pallet 9 by the clamp robot 10 of the clamp device 5 and then sequentially carried out forward, and the automatic transmission M is transferred by the leak inspection device 6 to the automatic transmission M. The case Ma of the M is subjected to a leak inspection, and subsequently the transmission M
The transmission pallet 9 is supplied to the pallet 9 by the unclamping robot 11 of the unclamping device 8.
Is released and transferred from the transfer device (not shown) to the payout line 3 and discharged.

The inspection station 7 is provided with a pair of inspection devices 13 and 13 in the middle, a pair of oil drainage devices 14 and 14 in the middle, and a case of the automatic transmission M by the oil supply device 12. After supplying mission oil to Ma, the inspection device
13, the automatic transmission M is rotated by the drive source provided in 13, and signals from various sensors attached to the transmission M are input to the inspection device to perform a completion inspection. After the inspection is completed, the oil drain device is 14, the mission oil is extracted from the case Ma. On the other hand, the oil supply device 12 and the oil discharge device 1
4 and 14 are connected by an oil feeder 15 to recirculate the mission oil from the oil drainage device 14 to the oil supply device 12 via the filter 16 so that the mission oil is used sequentially, and the inspection device By providing a pair of the oil draining device 13 and the oil draining device 14, the work time required for each device is reduced.

As shown in FIGS. 2 to 5, the transport pallet 9
An automatic transmission including a pallet body 17 and a pair of brackets 18, 18 erected so as to face the front surface of the pallet body 17 in the traveling direction and front and rear, and supported between the brackets 18, 18 so as to be able to move up and down. A pallet reversing device, which will be described later, is provided with a jig table 19 for mounting and fixing the M. The transmission M fixed to the jig table 19 in a downward vertical position by the clamp robot 10 at the starting point of the transport conveyor 4. By raising the jig table 19 by 20, the jig table 19 is inverted to the horizontal position, and the transport pallet 9 is moved to the inspection station 7 in this state.
And the jig table 19 is tilted down by the same pallet reversing device 20 as described above to invert the transmission M to the vertical position and release the fixing by the unclamping robot 11. Like that.

The jig table 19 is located on the inspection station 7 side, that is, both corners on the left side in the traveling direction of the transport
A pair of rails 22, which are supported by a pair of reversing arms 21 and 21, respectively, which are rotatably supported on the rotating shaft 21a at the upper ends of the upper and lower parts of the rotating shaft 21a, and have both right corners extended on the pallet body 17, 22 is supported by a pair of slide guides 23, 23 which advance and retreat in the left-right direction, and when the reversing arm 21 is reversed to the lower position as shown in FIG. 5, the jig table 19 falls down to the horizontal mounting position, Open the automatic transmission M in the center of the top
When the reversing arm 21 is turned counterclockwise in FIG. 5 and turned upside down, the left end of the jig base 19 is As the slide guide 23 is moved up and the right end is pulled to the left, the jig table is inverted to the vertical upright position, and the transmission M is turned sideways with its open end Mi facing left. The bracket 18 is further provided with a fixing device 25 having a pair of upper and lower pins 24, 24 penetrating the bracket 18, and the pins 24, 24 are mounted horizontally on the jig table 19. 2 and a pair of guide holes 21b and 21b formed in the reversing arm 21 as shown in FIG.
Fixing members 26 attached to both right ends of the jig stand 19 as shown in the figure
When the jig table 19 is returned to the horizontal mounting position from the vertical standing position, the jig table 19 is fixed to the above-mentioned two positions by being fitted into the pair of guide holes 26a, 26a. The jig table 19 is stopped by the slide guide 23 abutting against stoppers 27 provided on the right end of the pallet body 17.

The pallet reversing device 20 is disposed at a position shown in FIG. 1 c in front of the clamping device 5 and in a position shown in FIG. 1 n just before the unclamping device 8 so as to face the conveyor 4, respectively. A reversing drive device 28 that is connected to one of the rotating shafts 21a of the reversing arms 21 and 21 to invert the jig table 19, and operates the fixing devices 25 and 25 to retreat the pins 24 and 24 so that the bracket 18 , 18 are provided with a pair of hydraulic cylinders 29, 29 for releasing the fixing of the jig base 19, and the fixing device 25 allows the automatic transmission M to be placed in a horizontal position or a horizontal position. After the jig table 19 fixed to the vertical standing position is released from the fixing to the brackets 18 by operating the hydraulic cylinders 29, 29, the reversing drive device 28 is driven. I'm trying to undulate.

As shown in FIGS. 6 to 9, the reversing drive device 28 rotates a reversing arm 21 using a cylinder 32 fixed on a machine base 30 via a bracket 31 and the cylinder 32 as a driving source. A speed reducer 33, and a rotating arm 35 fixed to an input shaft 34 of the speed reducer 33 and connected to the cylinder 32 to convert the forward / backward movement of the cylinder 32 into a rotational movement.
The speed reducer 33 connected to the reversing arm 21 by the advance and retreat of 32
The reversing arm 21 is rotated by 180 degrees via the output shaft 36 to raise and lower the jig table 19 between the horizontal mounting position and the vertical mounting position.

Here, the fixing device 25 will be described in detail with reference to FIGS. 2 and 3. The fixing device 25 is connected to a connecting plate 37 provided at the tail ends of the pins 24 and 24 and to the connecting plate 37. The hydraulic cylinder 29 is extended to perform a seesaw motion on the swing arm 38, and the two pins 2
A release position in which the pins 24 and 24 are retracted against the coil spring 40 provided in the guide sleeve 39 of each pin 24, the hydraulic cylinder 29 is contracted to release the regulation of the swing arm 38, and the coil spring is released. The pin 40 is urged so that the ends of the pins 24, 24 are moved to the guide holes 21b, 21b of the reversing arm 21 or the fixed position to be fitted in the guide holes 26b, 26b of the fixing member 26. .

On the left end of the pallet body 17, a connector 42 of an electric system in which a plurality of terminals 42a are
And a hydraulic system coupler 44 in which three joints 44a, 44a, 44a are arranged in the block 43 are arranged in a row outwardly. The connector 42 is connected to the sensor mounted on the automatic transmission M inside. A continuous sensing cable and the control cable are configured to be freely connectable. Similarly, the coupler 44 is configured to be capable of connecting the hose inside. One end of the hose is connected to the coupler 44 and the other end is connected to the automatic transmission M by a worker's manual operation before the leak inspection device 6, and the leak inspection device 6, the refueling device 12, and the inspection device are connected.
One end of the sensing cable and the control cable is connected to the connector 42 in front of the inspection station 7, and the sensor and the control cable provided at the other end of the sensing cable and the control cable are provided. The end is connected to the automatic transmission M so as to face the inspection device 13. After the inspection is completed, one end of the hose and the cable is directly connected to the end of the inspection station 7.
The other end of the hose, the control cable and the sensor are disconnected from the automatic transmission M while being connected to the connector 44 and the connector 42. From the next time, only the other end of these hoses and the like will be attached to and detached from the automatic transmission M. , To improve work efficiency.

In the drawing, reference numeral 19a denotes a work opening for manual work when attaching the cable or the like to the automatic transmission M, and 45 denotes an adapter.
A storage tray for storing accessories used for inspection of Md, detection nipples, drain nipples, work fixing bolts, and the like. ing.

As shown in FIGS. 10 to 12, the leak inspection device 6 includes a coupler connection device 48 fixed to a machine frame 47 on a machine base 46 on the left side of the transport conveyor 4 and a leak inspection device main body (not shown). The coupler connecting device 48 includes a pair of guide bars 50, 50 on a guide bracket 49 fixed on the machine frame 47.
The guide bars 50, 50
When the transport pallet 9 faces the set position of the leak inspection device 6, the hydraulic cylinder 52 fixed on the guide bracket 49 is driven to attach the coupler 51. The joint 51a of the coupler 51 is connected to the joints 44a of the coupler 44 provided on the transport pallet 9 by applying a predetermined air pressure from the main body of the leak inspection apparatus, and cracks or the like of the transmission case Ma are caused. Check for presence.

Although not shown, the lubricating device 12 is composed of the same coupler connecting device 48 and the lubricating device main body as described above, and the lubricating devices 14 and 14 are similarly composed of the coupler connecting device 48 and the lubricating device main body. A joint 51a provided on the coupler 51 of the coupler connecting device 48 and a joint 44a provided on the coupler 44 of the transport pallet 9 are connected to perform a refueling operation or an oil discharging operation.

The inspection device 13 is, as shown in FIG. 13 and FIG.
A power unit 54 mounted on the power unit 53;
And a connector connecting device 55 and a coupler connecting device 56 provided in a space between the power device 54 and an L-shaped bracket case 57 covered by the power device 54. And the coupler connecting device 56 are respectively advanced to connect the automatic transmission M on the transport pallet 9 and the power device 54 to rotate the transmission M, and to connect the connector 42 and the coupler 44 of the transport pallet 9 Each terminal 42a and each joint 44a provided are connected to each terminal 58a provided to the connector 58 of the connector connection device 55 and each joint 59a provided to the coupler 59 of the coupler connection device 56, and automatically connected via the connector connection device 55. A shift signal is input to the transmission M, the result is detected by the sensor, and displayed on a monitor in the bracket case 57 to determine whether the transmission M is appropriate. The transmission oil is circulated to the oil cooler of the inspection device 13 (not shown) through the transmission.

As shown in FIGS. 15 to 17, the power unit 54
A carriage 63 having an electric motor 61 and a coupling device 62 mounted on a machine frame 60 fixed on 53 is provided so as to be able to advance and retreat in a direction orthogonal to the transport conveyor 4. Frame 60
The pair of rails 64 extending upward is advanced by a driving device (not shown) to connect the connecting device 62 to the automatic transmission M on the transport pallet 9.

The coupling device 62 is provided on an L-shaped bracket 65 fixed on the carriage 63, a jig table clamp device 66 for fixing the jig table 19 of the transport pallet 9, and provided so as to penetrate the bracket 65. Power transmission device 67, and a control shaft operating device 68 whose output end faces the opening 65a of the bracket 65, and the automatic transmission M is fixed via the jig base 19, The transmission device 67 is connected to the main shaft Me of the transmission M and is rotated, and the control shaft Mg of the transmission M is rotated by the control shaft operating device 68 to switch the manual valve Mf. Perform various functional inspections.

The jig stand clamping device 66 includes three clamping device main bodies 69, 69, 69 fixed to the upper end both corners and the lower end of the L-shaped bracket 65, and the upper center and the lower side of the bracket 65. And a pair of guide pins 70, 70 projecting from the jig table 19, which vertically stand on the transport pallet 9.
With the two guide pins 70, 70, and the jig table 19 by the two clamp device bodies 69, 69, 69.
Are fixed to the L-shaped bracket 65 at three places, and the automatic transmission M is accurately and firmly fixed to the coupling device 62 at the time of inspection.

The power transmission device 67 includes a guide member 71 fixed to penetrate the L-shaped bracket 65 and a power transmission shaft 72 rotatably supported by the guide member 71. The tail end is coupled to the main shaft 73 of the electric motor 61
74, a pair of engaging pins 75, 75 are attached to the distal end, and the two engaging pins 75, 75 are engaged with the end face of the adapter Md attached to the main shaft Me, and the electric motor 61
Is transmitted to the main shaft Me. Each of the engagement pins 75 is slidably guided by a guide groove 72a at the tip of the power transmission shaft 72, and is urged toward the adapter Md by a coil spring 76 to be connected to the adapter Md. In this case, the shock is reduced and the engagement is facilitated.

As shown in FIGS. 18 and 19 in addition to FIG. 17, the control shaft operating device 68 includes a positioning device 77 configured to be movable vertically and horizontally on the carriage 63,
An operating device main body 78 attached to the positioning device 77, the operating device main body 78 is connected to the control shaft Mg and rotates a spindle 79, an electric motor 80 for rotating the spindle 79, and a reduction gear And the positioning device 77 by an actuator (not shown).
To operate the spindle 79 and the shift lever shaft Mg
After the alignment of the control shaft operating device
68 is advanced together with the carriage 63, the spindle 79 is engaged with the shift lever shaft Mg, and is rotated to perform a shift operation for inspection.

The positioning device 77 is provided with a movable table 83 reciprocally movable on left and right rails 82, 82 extending on the carriage 63,
One side of the moving base 83 is provided with vertical rails 84, 84, and the operating device main body 78 is mounted on the rails 84, 84 so as to be vertically movable, and is compatible with a plurality of types of automatic transmissions M by an actuator (not shown). Thus, the position of the spindle 79 can be moved to a corresponding predetermined position.

As shown in FIG. 20, the spindle 79 has a spindle body 86 rotatably supported by a guide member 85 fixed to the L-shaped bracket 65, and a spindle 79 slidably slidably on the axis of the spindle body 86. And a locking rod 87 to be inserted.
A locking arm 88 is connected to the tip of 87 and a cylinder 89 is
The locking arm 88 is swung via a locking rod 87 by the advancement of the cylinder 89 with respect to the tip of the shift lever shaft Mg guided to the tip of the spindle main body 86 at the axis. A locking projection 88a projecting from the tip of the stop arm 88 is locked in the bolt hole Mj of the shift lever shaft Mg.

The connector connecting device 55 and the coupler connecting device 56 are separately provided on the machine base 53 surrounded by the machine base 53 and the shuttle 63 as shown in FIGS. The connector connecting device 55 is arranged side by side so as to advance and retreat.
The connector 58 supported on a guide rail 91 on the upper surface of a machine frame 90 provided on the machine base 53 is configured to be able to advance and retreat by a cylinder 92. The connector 58 is connected to the connector 42 of the transport pallet 9 by the cylinder 92. A plurality of the terminals 58a which are detachable are provided on the terminals 42a provided in the cylinder 92, and the terminals 42a and 58a are moved forward by the driving of the cylinder 92 to connect the terminals 42a and 58a to each other. A signal is input, and the result is detected as a detection signal of the sensor.

The coupler connecting device 56 is provided with the connector connecting device 55.
Guide rail on the upper surface of the machine frame 93 provided on the machine base 53 as in
The coupler 59, which is supported at 94 and 94 so that it can move back and forth,
The coupler 59 is configured so as to be able to move forward and backward by a joint 95 and is provided on the coupler 44 of the transport pallet 9.
a, 44a, three detachable joints 59a, 59a, 5 on 44a
9a is provided horizontally, and is advanced by driving of the cylinder 95 to connect the joints 44a and 59a to each other.
On the other hand, each of the joints 59a is connected to an oil cooler (not shown) provided in the inspection device 13 via a supply pipe 96 so as to appropriately maintain the temperature of the mission oil under inspection.

Next, the inspection process of this embodiment is performed by using the conveyor 4 shown in FIG.
The description will be made based on the symbols a to p entered along the line.

At the position a, the automatic transmission M assembled on the assembly line 2 is transferred to the jig table 19 of the transfer pallet 9 which is returned from the position p at the end point of the transfer conveyor 4 to the position a via a return path (not shown). The transmission M is placed in a vertical position with the opening end Mb of the transmission M down, and the clamp robot 10 of the clamping device 5 is operated at the subsequent position b to selectively grip the bolt from the storage tray 45 of the transport pallet 9. The transmission M is supplied to each fastening portion of the transmission M to fix the transmission M on the jig base 19.
When the fixing is completed, the pallet reversing device 20 faces the transport pallet 9 at the position c, and the transmission M is moved 90
The transmission M is rotated by the open end Mi.
In a horizontal horizontal position facing the left in the direction of travel. At the d position, the operator mounts the adapter Md and the bar code card indicating the model and the machine number on the transmission M as a pre-stage for entering each inspection. At the e position, the detection nipple, the breather hole seal and the oil are mounted. The cooler hose is attached to the transmission M, and the cooler hose moves to the leak inspection layer 6 at the subsequent position f. In the leak inspection device 6, each joint 51a provided in the coupler 51 of the leak inspection device 6
And joints 44a provided on the coupler 44 of the transport pallet 9
Are connected, and air pressure is supplied into the case Ma of the transmission M from the oil outlet Mb and the oil return port Mc for the oil cooler, and the case Ma is inspected for cracks and the like. In position g, the sensor, the sensing cable,
The control cable and the hose for the drain port are attached to the transmission M.
The respective joints 51a provided on the 12 couplers 51 and the respective joints 44a provided on the coupler 44 of the transport pallet 9 are connected, and the transmission oil is supplied to the transmission M from one connection port for the oil cooler and the drain port. Supplied and ready for completion inspection.

When the transport pallet 9 reaches the i position, the carriage 63 of the inspection device 13 first advances, and the jig table clamp device 66 of the L-shaped bracket 65 moves through the jig table 19 of the transport pallet 9 to change the speed. The transmission M is fixed to the inspection device 13, and a power transmission device 67 and a control shaft operating device 68, which advance together with the clamping device 66, are connected to the transmission M, and a connector connection device 55 and a coupler connection device are connected one after another. The terminal 56a moves forward and the terminals 58a and the joints 59a provided respectively are connected to the terminals 42a and the joints 44a provided on the transport pallet 9, respectively, and the inspection is started. In the inspection, first, a bar code is read by a computer, and the model and the machine number are confirmed.
Then, power is supplied to the transmission M by the power transmission device 67, and the hydraulic pressure corresponding to a predetermined variation between the input rotation speed operation by the power transmission device 67 and the switching operation of the manual valve Mf by the control shaft operation device 68. , Flow rate, pulse, input speed, oil temperature, range, solenoid ON-OF
F, etc. are detected and displayed on a computer monitor for data processing. At this time, various inspections are performed by the first inspection device 13 in the parking, reverse and neutral states, that is, in a state where automatic shifting is not performed, and various inspections are performed by the second inspection device 13 in a driving state, that is, in a state of automatic shifting. Is performed.

When the completion inspection described above is completed, the transport pallet 9 moves to the j position, and the joints 51a provided on the coupler 51 of the oil discharging device 14 and the joints 44a provided on the coupler 44 of the transport pallet 9 are connected similarly to the oil supply device 12. Then, mission oil is extracted from the drain port by vacuum suction. At this time, it takes time even though the vacuum suction is performed. On the other hand, the drained oil that has been extracted is fed from the oil draining devices 14 and 14 by the oil feeding device 15 to the oil feeding device.
Sent to 12 for reuse. At the k position, the adapter Md and the bar code card are removed, at the 1 position, the hoses and the control cable are removed from the transmission M, and further, the sensor is removed from the transmission M. . Further, when reaching the n position, the reversing device 20 faces the transport pallet 9 and the transmission M is returned to the original vertical posture together with the jig table 19, and the unclamping device 8 is moved to the next o position.
The transmission M is unlocked by the unclamping robot 11, and the bolts removed in the same manner as described above are returned to the storage tray 45 and reused. Finally, the transmission M is moved to the p position, and the transmission M is transferred to the payout line 3 side by the transfer device and paid out.

In this embodiment, it is most preferable to synchronize the inspection process with the assembly process of the assembly line 2.

Thus, the inspection process of the completion inspection is lined up using the conveyor 4 and the connector is connected to the conveyor pallet 9.
A leak inspection device 6, a lubrication device 12, an inspection device 13, and an oil drainage device are provided on the transport conveyor 4 by providing 42 and a coupler 44.
Attachment and removal of sensors, cables, hoses, etc. to and from the automatic transmission M at a position different from 14 divide the inspection work and the attachment / detachment work of sensors etc. before and after that, thereby shortening the work time of each part Can be achieved. On the other hand, the connection between the transmission M to be inspected and the various devices is performed by connecting the connector 42 and the coupler 44 provided on the transport pallet 9 to the connector 58 and the couplers 51 and 59 included in the various devices. Thereby, it can be easily performed in a short time.

Also, by performing a leak inspection prior to the completion inspection on the automatic transmission M, it is possible to remove the defective case Ma in advance and then proceed to the completion inspection, and
By using air pressure for the inspection, the inspection time can be reduced as compared with the conventional inspection using oil.

(Effects of the Invention) As described above, according to the present invention, the completion inspection is performed in a flow operation using the transport path, and the attachment / detachment of the sensor required for the completion inspection on the transport path before and after the completion inspection is performed. By performing work, etc., the work efficiency is improved by separating the completion inspection and the attaching / detaching work, the completion inspection can be performed for all completed automatic transmissions, and the reliability of the product can be improved. Having.

In addition, the cost is reduced by reusing the transmission oil, and the leak is inspected prior to the completion inspection to eliminate waste, and the inspection device is equipped with a coupler connected to the transport pallet. The oil of the mission can be cooled during the inspection.

In addition, the jig table is provided on the transport pallet so as to be able to move up and down so that the automatic transmission can be placed in the same horizontal position as when the vehicle is mounted, and the completion inspection can be performed. The attachment / detachment workability can be improved, and the provision of a storage tray facilitates handling of accessories used for inspection.

[Brief description of the drawings]

FIG. 1 is an overall view of an inspection line embodying the present invention, FIG. 2 is a partially cutaway front view of a transport pallet, FIG. 3 is a partially cutaway front view of the inverted pallet, FIG. 5 is a side view thereof, FIG. 6 is a front view of the reversing drive device, FIG. 7 is a partially cutaway plan view thereof, FIG. 8 is a side view thereof, and FIG. 9 is an enlarged front view around the rotating arm. , FIG. 10 is a partially mounted side view of a coupler connecting device provided in a leak inspection device, FIG. 11 is a plan view thereof, FIG. 12 is a partially mounted front view thereof, FIG. 13 is a side view of the inspection device, FIG. 14 is a front view thereof, FIG. 15 is a partially cutaway side view of the power unit, FIG. 16 is a front view thereof, FIG. 17 is a plan view thereof, FIG. 18 is a front view of a control shaft operating device, FIG. FIG. 20 is a plan view thereof, FIG. 20 is a sectional view of a spindle, FIG. 21 is a partially cutaway side view of a connector connecting device, and FIG.
Fig. 23 is a front view thereof, Fig. 23 is a partially cutaway side view of the coupler connecting device, Fig. 24 is a front view thereof, Fig. 25 is a side view of the automatic transmission, and Fig. 26 is a perspective view from an oblique rear side. FIG. 27 is a perspective view as viewed obliquely from the front, and FIG. 28 is a perspective view as viewed obliquely from the side. 1 Inspection line 2 Assembly line 4 Conveyor 6 Leak inspection device 7 Inspection station 9 Transport pallet 12 Oil supply device 13 Inspection device 14 Oil drain device 15 Oil transfer device 17… Pallet body 19… Jig stand 20… Pallet reversing device 42… Connector 44… Coupler 45… Storage tray 48… Coupler connection device 51… Coupler 55… Connector connection device 56 … Coupler connection device 58… Connector 59… Coupler M… Automatic transmission Ma… Case Me… Main shaft Mb… Oil outlet Mc… Oil return

Claims (8)

(57) [Claims] 1. After supplying transmission oil into a case of an automatic transmission assembled on an assembly line, a main shaft of the automatic transmission is rotated by a drive source provided in an inspection device, and various sensors attached to the transmission are provided. In the inspection method for an automatic transmission, in which a signal from the automatic transmission is input to the inspection device to perform a completion inspection, an oil supply device, the inspection device, and a discharge device are provided at an intermediate portion of a transport path for transporting the automatic transmission while being fixed to a transport pallet. An inspection station in which oil devices are arranged in three stations, an electrical system connector capable of connecting a sensing cable connected to the sensor and a control cable connected to an electric transmission of the automatic transmission on the transport pallet; A hydraulic system coupler that can connect a hose connected to the oil supply / discharge port of the case is provided, and the oil supply device and the oil discharge device can be connected to and separated from the coupler. A plastic and a connector which can be connected to and detached from the connector in the inspection apparatus, and, in a transport path in front of the inspection station, mounting the sensor to an automatic transmission on a transport pallet; Perform wiring and piping work of the sensing cable, the control cable, and the hose between the connector and the coupler, and then connect the coupler of the refueling device and the coupler of the transport pallet with a refueling device to supply transmission oil. Then, the connector of the inspection device and the connector of the transport pallet are connected by an inspection device to perform a completion inspection, and then the coupler of the oil drain device and the coupler of the transport pallet are connected by an oil drainage device to transmit the transmission oil. And then on the transport path beyond the inspection station,
A method for inspecting an automatic transmission, comprising removing the sensor, the sensing cable, the control cable, and the hose. 2. The inspection method for an automatic transmission according to claim 1, wherein the transmission oil extracted by the oil discharging device is returned to the oil supply device, and the transmission oil is circulated. 3. The inspection method for an automatic transmission according to claim 1, wherein a leak inspection of a case of the automatic transmission is performed before refueling the inside of the case before the oil supply device. 4. After the transmission oil is supplied into the case of the automatic transmission assembled on the assembly line, the main shaft of the automatic transmission is rotated by the drive source provided in the inspection device, and various sensors attached to the transmission are provided. The automatic transmission is fixed to a transport pallet and the oil supply device, the inspection device, and the oil drain device are connected in a middle portion of the transport path for performing the completion inspection by inputting a signal from the automatic transmission to the inspection device. Inspection station disposed in the pallet, an electrical system connector to which a sensing cable connected to the sensor or a control cable connected to an electric transmission of the automatic transmission can be connected to the transport pallet; A coupler of a hydraulic system to which a hose connected to a mouth is freely connectable, and a coupler that can be freely connected to and detached from the coupler for the oil supply device and the oil discharge device; Inspection line of an automatic transmission, characterized in that a freely contacts and separates connector to the connector location. 5. The inspection line for an automatic transmission according to claim 4, wherein a leak inspection device for inspecting a leak of a case of the automatic transmission is provided in front of the oil supply device. 6. The inspection apparatus according to claim 4, wherein the inspection device is provided with a coupler which can be freely connected to and separated from the coupler of the transport pallet, and an oil cooler connected to the coupler is provided. Inspection line for automatic transmission. 7. A transport pallet for transporting an automatic transmission assembled on an assembly line along a transport path extending to an inspection line, and a sensing cable connected to an inspection sensor attached to the automatic transmission on the pallet body. And a connector of an electric system that can connect a control cable that is connected to an electric transmission product of an automatic transmission and a hydraulic system coupler that can connect a hose that is connected to an oil supply / drain port of a transmission case. A jig base for holding the automatic transmission is provided on the main body so as to be able to be raised and lowered, and the automatic transmission can be freely inverted between a downward vertical posture and a horizontal horizontal posture by raising and lowering the jig base. Transport pallets for transmissions. 8. The transport pallet for an automatic transmission according to claim 7, wherein a storage tray for storing accessories used for inspection is provided on the pallet body.