JP2597669B2 - Test equipment using a turntable - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test facility using a turntable, which is used for performing a performance test on an internal combustion engine before being incorporated into a vehicle body, for example, in an automobile assembly factory. is there.

2. Description of the Related Art Usually, internal combustion engine test equipment places an internal combustion engine on a pallet, sends the internal combustion engine together with the pallet to a test apparatus, and removes the internal combustion engine together with the pallet after performing an intended performance test.

Conventionally, as a test facility for an internal combustion engine, for example, a turntable system shown in FIG. 13 and an in-line system shown in FIG. 14 have been provided. The former turntable method is
A plurality of test devices 121 are provided on the turntable 120, and the internal combustion engine 123 transported by the main conveyor 122 is provided.
The transfer device 125 on the loading side via the loading conveyor 124 and the like.
And transferred from the transfer device 125 to the test device 121. The turntable 120 performs intermittent rotation, and the internal combustion engine 1 is rotated while the turntable 120 makes one rotation.
The expected performance tests for 23 are performed.

Then, the internal combustion engine 123 is taken out by the transfer device 126 on the output side, and is transferred via the output conveyor 127 to the main conveyor 122.
Passed to. Further, the transmission and reception of the operation signal of the lift device and the operation signal of the loading and unloading in the test device 121 are performed by a table-side transmission / reception unit 128 provided in the center of the turntable 120 and a ground-side device provided on the ceiling side facing the upper side from above. Receiver 129
A transmission / reception device using a trolley is provided between them, and the table-side transmission / reception unit 128 is connected 131 to the test unit 130 of each test device 121, and the ground-side transmission / reception unit 129 is connected to the control unit 132.
Going by doing.

In addition, the latter in-line method uses the main conveyor 122
The internal combustion engine 123 conveyed by the vehicle is transferred onto a truck, and while the truck is traveling on the circulation route 134,
Is passed to the test apparatus 121 provided on the side of. Then, the internal combustion engine 123, for which the expected performance test has been completed, is taken out onto a bogie, and the bogie is run on the circulation path 134, and then passed to the main conveyor 122. In this case, transmission and reception of various operation signals and test data signals are performed by connecting 135 between the test units 130 and the control unit 132.

Problems to be Solved by the Invention Among the conventional methods described above, according to the former turntable method, since the table side transmitting / receiving unit 128 is provided in the center of the turntable 120, a space for it is required, and the space for that is required. The entire equipment becomes expensive, such as making the turntable 120 larger. Also, because of the trolley format, a large amount of transmission / reception cannot be performed, and therefore, only transmission / reception of an operation signal cannot be performed, and transmission / reception of test data cannot be performed. As a result, a large amount of data must be stored in the test unit 130, and the size of the test unit 130 is increased and the cost is increased.

Such a problem can be solved by the latter in-line method.
Since all the test data from 121 is sent to the control unit 132, the operator (tester) of the test apparatus 121 cannot grasp the data content, and therefore cannot quickly process and adjust for the defect.

An object of the present invention is to provide a test equipment using a turntable which can perform a large amount of tests, and enables a test apparatus operator to visually confirm test data sequentially, and furthermore, makes the turntable clear. It is in.

Means for Solving the Problems In order to achieve the above object, a test facility using a turntable according to the present invention is provided with test devices at a plurality of circumferential positions on the turntable. A control unit comprising a computer for controlling the means, a display device controlled by the control unit,
An interface part, and at a plurality of locations around the periphery of the turntable, a table-side connector connected to each control unit via the interface part is provided, and outside the turntable, the table-side connector is provided. A ground-side connector is provided which is connectable and detachable and connected to a host computer, and the control unit combines the test data input from the test means with the judgment data from the host computer corresponding to the test data to form the display. It is configured to be displayed on the device.

In accordance with such a configuration of the invention, the internal combustion engine is passed to a test device, undergoes a desired performance test while rotating with the turntable, and is removed after almost a complete round. Also, by connecting the table side connector and the ground side connector to face each other, and connecting each control unit and the host computer via the interface unit,
A test data signal between the host computer and the control unit,
It is possible to exchange a large amount of judgment data signals and various operation signals. Therefore, by combining the test data from the host computer and the test data input from the test means by the computer of the control unit, a large amount of tests can be performed, and the test data and the like are displayed on a display device, thereby making the test apparatus possible. Can visually check the test data of the DUT during this test and make a decision.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a turntable which is supported and guided by an annular rail 3 mounted on a base frame via a plurality of wheels 4, and which has a chain member 5 attached to a lower portion of an outer peripheral surface thereof, and a drive which engages with the chain member 5. By providing the device 6, continuous rotation is performed at a constant speed around the vertical axis. In the upper surface of the turntable 1, a plurality of positions at predetermined angular intervals in the circumferential direction (in the embodiment,
The test devices 7 are radially arranged at 10 positions at every 36 degrees). Each of these test devices 7 has a test unit 65 and a control unit 66 including a computer for controlling the test unit 65.
And a display device 67 controlled by the control unit 66,
And an interface unit 68.

Then, on the outer peripheral surface of the turntable 1 and in each of the test devices 7
Blocks 10 are mounted at locations corresponding to the above, and positioning cylinders 11 project outward from both ends of the block 10 in the rotation direction A. Further, on the outer surface of the block 10 and below the well-positioned cylinder 11, an engaging member 12 is provided.
Is provided.

A table-side exhaust gas connector 13 for extracting exhaust gas is provided near the positioning cylinder 11 on the lower side, and a table-side oil connector 14 for extracting engine oil is provided near the engaging member 12. Two table-side connectors 1 for transmission and reception are provided between the two connectors 13 and 14.
5 is provided. These table-side connectors 15 are connected to the respective interface sections 68 via the transmission cable 2 in a party line system.

An internal combustion engine 16, which is an example of the DUT, is handled via a pallet 17, and each test apparatus 7 includes this pallet.
A pallet receiver 18 for directly receiving the pallet 17 is provided.

A device 20 for transferring a device under test to the test device 7 and the table-side connector
15 is provided with a ground-side connector 70 that can be connected and separated freely.
The transfer device 20 is a carry-in vehicle that is reciprocally movable individually along an arc-shaped movement path 21 along the outer periphery of the turntable 1.
It has a carriage 22 and a carry-out carriage 23, and transfer devices 24, 25 are arranged above the carriages 22, 23. The moving path 21 is formed by disposing a pair of left and right arc-shaped floor rails 27 on a base frame 26.

7 to 10, the loading carriage 22 is a floor rail 27.
Is supported and guided via a plurality of wheels 28, and its traveling is performed by a cylinder device 30 provided between itself and the base frame 26. The transfer device 24 is disposed above the carry-in carriage 22 via a support frame 31. A pair of front and rear frames 32 attached to the upper portion of the support frame 31 in the left-right direction are provided.
A sprocket 33 attached to each of the left and right ends, and a chain 34 stretched between the sprockets 33 facing each other on the left and right,
A drive shaft 35 on which a pair of sprockets 33 on the turntable 1 side are mounted, a drive device 37 provided on a stand 36 integrated with the carry-in vehicle 2, and a winding transmission for linking the drive device 37 to the drive shaft 35 And a device 38.

A lifting platform 40 is provided between the chains 34, and a pair of left and right pantograph mechanisms 41 for vertically guiding the lifting platform 40 between the lifting platform 40 and the loading vehicle 22, and a lifting drive unit 42. Is provided. The lifting drive device 42
A pair of left and right longitudinal shafts 44 supported on the sides via bearings 43
A pair of front and rear link interlocking mechanisms 45 for synchronously rotating these front and rear direction shafts 44, a pair of front and rear links 46 attached to the front and rear direction shafts 44, a roller 47 attached to the free ends of these links 46, and one front and rear It comprises a cylinder device 49 interlocked with a lever 48 attached to the directional shaft 44, and the roller 47 abuts on the lower surface of the lift table 40 side from below.

A fork 50 that can move back and forth in the left-right direction on the elevator 40
Is provided. The fork 50 is supported and guided by a pair of front and rear guide rails 51 provided on the support frame 31 side via a plurality of rollers 52. Then, the retracting drive device 53 of the fork 50 is
A motor 54 mounted on the lift 40, a drive gear 55 attached to its output shaft, a pinion 56 meshed with the drive gear 55 and rotatably supported by the lift 40, and a pinion 56
And a rack 57 attached to the lower surface of the fork 50 so as to engage with the fork 50 from below. A load receiving plate 58 is mounted on the upper surface of the fork 50 and on the turntable 1 side, and a stopper 59 is erected at an end of the frame 32 on the turntable 1 side.

An engagement / disengagement device 60 for the engagement member 12 is provided on the carry-in carriage 22 side. That is, a cylinder device 62 is attached to the turntable 1 side of the carry-in cart 22 via a support member 61, and the engaged member 64 attached to the piston rod 63 of the cylinder device 62 approaches the outer peripheral surface of the turntable 1. The engaging member 12 can be detached from the engaging member 12 by being separated and retracted by the cylinder device 62.

The carry-out carriage 23 is substantially the same as the carry-in carriage 22, and the same or almost the same components are denoted by the same reference numerals and detailed description thereof will be omitted. The difference is that the drive 37
And the position and direction (operation direction) of the cylinder device 49.

The ground-side connector 70 is provided on each of a pair of movable bodies 72 and 73 that can reciprocate on an arc-shaped movement path 71 along the outer periphery of the turntable 1.

That is, as shown in FIG. 2 to FIG.
Is formed by providing a rectangular cylindrical duct body 75 on a base frame 74 in an arc shape, and providing a pair of upper and lower guide rails 76 on the duct body 75 in an arc shape. Both movable bodies 72 and 73 are supported and guided by a plurality of wheels 77 and a guide roller 78 on both guide rails 76, and the traveling thereof includes a chain side 80 driven by an air motor 79 with a mounted speed reducer. This is possible by engaging the chain body 82 attached to the duct body 75 via the support member 81.

A support base 84 is provided on the movable bodies 72 and 73 via a vibration isolating rubber 83.
A movable plate 87 is provided on the support base 84 so as to be able to approach and separate from the outer surface of the turntable 1 via a guide mechanism composed of a cylindrical body 85 and a guide rod 86. A cylinder device 88 is provided between the movable plate 87 and the movable plate 87.

On the surface of the movable plate 87 facing the turntable 1 side, positioning pins 89 that can be fitted and detached from the positioning cylinder 11 are protruded, and a ground-side exhaust gas connector that can be connected to and separated from the table-side exhaust gas connector 13. 90 and a ground-side oil connector 91 that can be connected to and separated from the table-side oil connector 14. Further, the movable plate 82 is provided with the ground-side connector 70 which can be freely coupled to and separated from the table-side connector 15. A cable 93 connected to the ground-side connector 70 is connected to a host computer 95 via a cable bear 94 or the like. Therefore, the control unit 66 of each test apparatus 7 can be connected to the host computer 95 via both connectors 15, 70 and the like.

Oil drain nozzle 96 communicating with the ground side oil connector 91
Pierces through the slit 97 into the duct body 75 to form an oil tank inside the duct body 75 and to connect an oil drain pipe 98. Further, an engagement / disengagement device 100 for the engagement member 12 is provided on the support base 84 of the movable bodies 72 and 73.

That is, the support base 84 is provided with a mounting plate 103 which can be freely moved toward and away from the outer surface of the turntable 1 via a guide mechanism composed of a cylindrical body 101 and a guide rod 102. A cylinder device 104 is provided between the cylinder device 104 and the cylinder device 84. The engaging member 1 is provided on the front surface of the mounting plate 103.
2 is provided with a disengageable engaged projection 105.

Outside the transfer device 20, there are provided a loading device 110 to which the outer end of the loading cart 22 is freely connectable, and an unloading device 111 to which the outer end of the loading cart 23 is freely connectable. These devices 110 and 111 are lift devices and conveyors. It is composed of devices.

Next, a test operation of the internal combustion engine 16 in the above embodiment will be described.

The pallet 17 supporting the internal combustion engine 16 has a loading device 11
The transfer position (end) of 0 has been reached. The carry-in carriage 22 is moved toward the carry-out carriage 23 by the cylinder device 30, and is stopped facing the carry-in device 110. At this time, the loading cart 22
In, the fork 50 retreats so as to be accommodated in the elevator 40, and the elevator 40 is lowered so that the load receiving plate 58 is located below the transport surface of the chain 34.

In this state, the pallet 17 is sent out from the carry-in device 110, and the pallet 17 is carried in while being supported by the chain 30 that drives the pallet 17, and then brought into contact with the stopper 59, whereby the load receiving plate 58
Stop above. Next, while the cylinder device 30 is in a free state, the cylinder device 62 of the engagement / disengagement device 60 is extended, and the engaged member 64 is protruded to a position close to the outer surface of the turntable 1.

Then, the engaging member 12 that has moved together with the rotation A of the turntable 1 engages with the engaged member 64, and thereafter, the rotation of the turntable 1 is carried from the engaging member 12 via the engaged member 64 and the like. The carry-in carriage 22 moves on the movement path 21 integrally with the turntable 1 in a state where the carry-in carriage 22 is correctly opposed to the test apparatus 7.

When such an integrated movement is started, first, the cylinder device 49 is actuated, the two front-rear direction shafts 44 are synchronously rotated via the lever 48 and the link interlocking mechanism 45, and the roller 47 is moved upward via the two links 46. Move. As a result, the elevator 40
Rises at that time, and rises vertically by the pantograph mechanism 41.

The elevator 40 raises the fork 50 integrally, and the load receiving plate 58 contacts the lower surface of the pallet 17 to chain the pallet 17.
Lift from 34. Next, the motor 54 is operated, the fork 50 is protruded through the drive gear 55, the pinion 56, and the rack 57, and the pallet 17 is positioned above the pallet receiver 18 of the test apparatus 7. And fork 50 together with elevator 40
Is lowered, and the pallet 17 is placed on the pallet receiver 18. Then, the carrying-in work is completed by moving the fork 50 back and forth.

Next, the engaged member 64 is moved backward to turn the turntable 1.
From the loading carriage 22. As a result, the free loading carriage 22 is returned by the cylinder device 30 and is stopped facing the loading device 110.

As described above, the expected performance test is performed on the internal combustion engine 16 passed and positioned by the pallet receiving device 18 via the test means 65 during substantially one round with the turntable 1.
Then, the test data is input to the control unit 66.

While performing various performance tests on the internal combustion engine 16 as described above, test data of the internal combustion engine 16 is input from the test means 65 to the control unit 66, and the test data stored in the control unit 66 It is combined with the corresponding judgment data and displayed on the display device 67.

That is, as shown in FIG. 12, the display device 67 displays the internal combustion engine number and model, and determines respective test data 115a and 115b for test items such as engine speed, oil temperature, voltage, and current. , 115c, 115d, ... are displayed in the allowable range, and the respective test data 116a, 116b,
.. Are displayed in a bar graph. Here, at least the test data 116a, 116b, 116c, 116d,... Are displayed in color. For example, the test data 116a, 116b, 116c, 116d,. Are displayed in blue, and the test data 116c outside the allowable range is displayed in red. Then, the judgment based on the total is displayed.

Therefore, the worker can visually check the test data of the internal combustion engine 16 under test, and based on the data, determine whether or not the product is defective, whether or not adjustment is necessary on the spot, and continue the subsequent tests. Can decide whether or not to do so. Further, the display on the display device 67 changes to a self-diagnosis character or the like.

In addition to such control, a test data signal of the internal combustion engine 16 and an operation signal of each unit are transmitted and received between the control unit 66 and the host computer 95 via the interface unit 68 and the like.

That is, the movable body 72 is rotated by the air motor 79 in the rotation direction A.
And the movable plate 87 is moved away by the contraction movement of the cylinder device 88,
The engaged protrusion 105 is moved away by the contraction movement of the cylinder device 104. Next, while the air motor 79 is in a free state, the cylinder device 104 of the engagement / disengagement device 100 is extended to move the engaged projection 105 to a position close to the outer surface of the turntable 1. Then, the engaging member 12 that has moved together with the rotation A of the turntable 1 is engaged with the engaged projection 105, and thereafter, the rotational force of the turntable 1 is moved from the engaging member 12 through the engaged projection 105 to the movable body. The movable body 72 is moved on the moving path 71 integrally with the turntable 1 in a state of roughly facing the test apparatus 7.

When such an integrated movement is started, first, the cylinder device 88 is operated to move the movable plate 87 closer. Then the movable plate
The positioning pin 89 that advances integrally with the 87 fits into the cylindrical body 85, so that the movable bodies 72 and 73 are correctly opposed to the support base 84 and are integrally moved. As the movable plate 87 moves further closer, the ground-side exhaust connector 90 is connected to the table-side exhaust connector 13, the ground-side oil connector 91 is connected to the table-side oil connector 14, and the table-side connector 15 is connected to the table-side exhaust connector 13. The connector 70 is connected. As a result, various signals are exchanged between each control unit 66 and the host computer 95 via the connectors 15, 70, the transmission cable 2, the interface unit 68, and the like.

Accordingly, a large amount of test instructions, judgment data, and the like can be transmitted from the host computer 95 to the control unit 66.
A large amount of test data and the like can be received from the control unit 66 to the host computer 95, and these test data are also displayed on the display device 67.

Further, the exhaust gas in the internal combustion engine 16 is taken out by the above-described connection, and the oil is taken out into the duct body 75. Then, after taking out the desired data such as test data, the cylinder device 88 is contracted and the movable plate 87 is moved backward, and the connectors 13, 14 and 15 on the table side are connected to the connectors 90, 91 and 70 on the ground side. And the positioning pin 89 is pulled out of the cylindrical body 85. Next, the contracted movement of the cylinder device 104 causes the engaged projection 105 to be disengaged from the engagement member 12 to make the movable bodies 72 and 73 free, and the movable bodies 72 and 73
Is returned by the air motor 79.

The empty carry-out carriage 23 is moved by the cylinder device 30 to the carry-out device 11.
When the carry-in carriage 22 and the turntable 1 are integrated as described above, the carry-in carriage 22 side faces the test device 7 which is lower by one pitch, and its disengaging device. The unitary movement is performed by the engaging movement of 60.

During this integral movement, the load receiving plate 58 of the carry-out carriage 23 performs the reverse operation of the carry-in carriage 22 described above, whereby the pallet 17 on the pallet receiver 18 is directly received and transferred onto the chain 34. When the removal of the pallet 17 is completed, the engaged member 64 is moved backward, and the carry-out carriage 23 is detached from the turntable 1. The detachment of the carry-out carriage 23 is performed individually regardless of the detachment of the carry-in carriage 22. As a result, the unloading carriage 23 that has become free is adjusted and moved in the forward and reverse directions by the operation of the air motor 79, and is stopped facing the unloading device 111.

Next, the transfer device 25 and the unloading device 111 are operated to transfer the pallet 17 on the unloading cart 23 onto the unloading device 111. Then, the empty carry-out cart 23 is moved to the carry-out device as described above.
Moved to the furthest position from 111.

In the above embodiment, the carry-in carriage 22 and the carry-out carriage 23 are reciprocated by the cylinder device 30, but this may be of a type in which the mounted traveling drive device is linked to the wheels 28.

Also, the fork type is shown as the transfer type by the two carts 22 and 23, but this may be a type provided with a lateral pushing-out device or a pull-out device.

In the above embodiment, one of the two movable bodies 72 and 73
2 is used for transmission and reception, while 73 is used for 7
2 is used in the same manner when a failure occurs.

In the above embodiment, the turntable 1 is continuously rotated, but this may be an intermittent rotation type. In the case of this type, the transfer device 20, the ground-side connector 70, and the like can be fixed.

Further, in the above embodiment, the two connectors 15, 70 are completely connected for transmission / reception, but this may be a type in which the ground-side connector 70 is brought sufficiently close to the table-side connector 15 and transmitted / received by photoelectric transmission. Good.

According to the present invention having the above-described configuration, the performance test of the internal combustion engine
By using the turntable, it is possible to shorten the interval between the test devices, speed up transmission / reception, reduce the number of wirings, and quickly recover from a failure or the like. Further, it is possible to exchange a large amount of test data signals, judgment data signals, various operation signals, and the like between the host computer and the control unit. Therefore, the test data from the host computer and the test data input from the test means can be transmitted and received. By combining the data with the computer of the control unit, a large amount of tests can be performed,
This can be displayed on the display device. Thus, an operator near the test apparatus can visually check the test data of the DUT during the test, and can quickly make a decision on processing, organizing, and the like.

[Brief description of the drawings]

1 to 12 show an embodiment of the present invention. FIG. 1 is a schematic perspective view of the whole, FIG. 2 is a schematic plan view of the same, FIG. 3 is a plan view of a photoelectric transmission unit, and FIG. Is the front view, FIG. 5 is the side view,
FIG. 6 is a front view of the test apparatus, FIG. 7 is a plan view of the transfer unit, FIG. 8 is a plan view of the carry-in truck, FIG.
10 is a side view of the same, FIG. 11 is a circuit diagram, FIG. 12 is a display diagram of the display device, and FIGS. 13 and 14 are schematic plan views each showing a conventional example. 1 ... turntable, 2 ... transmission cable, 6 ... drive device, 7 ... test device, 11 ... positioning cylinder, 12 ...
... engaging member, 15 ... cable side connector, 16 ... internal combustion engine (test object), 17 ... pallet, 20 ... transfer device, 21
…… Movement route, 22 …… Loading trolley, 23 …… Unloading trolley, 24,2
5 ... Transfer device, 30 ... Cylinder device, 42 ... Elevating drive device, 50 ... Fork, 58 ... Loading plate, 60 ... Disengaging device, 64 ... Engaged member, 65 ... Test means 66, a control unit, 67, a display device, 68, an interface unit, 70, a ground connector, 71, a moving path, 72, 73
... Movable body, 79 ... Air motor, 89 ... Positioning pin,
95 ... host computer, 100 ... disengagement device, 105 ...
Engagement projection, 110: loading device, 111: unloading device, 115a
115115d: judgment data, 116a to 116d: test data.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kenji Horio, Inventor 3-2-11 Moundoshima, Nishiyodogawa-ku, Osaka, Osaka Prefecture (72) Inventor Toshihiko Kato 3-2-1 Migoshima, Nishiyodogawa-ku, Osaka, Osaka No. Daifuku Co., Ltd. (56) References JP-A-62-32339 (JP, A) US Patent 4,424,709 (US, A)

Claims (1)

(57) [Claims] A test device is provided at a plurality of circumferential positions on a turntable. The test device includes a test unit, a control unit including a computer for controlling the test unit, and a display controlled by the control unit. A device and an interface portion, and a table-side connector connected to each control portion via an interface portion is provided at a plurality of positions on the periphery of the turntable, and the table is provided outside the turntable. A ground-side connector is provided on the side connector, which can be connected and separated and connected to the host computer. The control unit combines the test data input from the test means with the judgment data from the host computer corresponding to the test data. Test equipment using a turntable, wherein the test equipment is configured to display the information on the display device.