JPH07174688A - Constant-temperature testing device - Google Patents

Abstract

PURPOSE:To provide a constant-temperature testing device which can perform test continuously being incorporated in a production line and can be miniaturized. CONSTITUTION:A lattice-shaped product storage shelf 102 is provided in a rectangular parallelepiped enclosure 10 and a product to be tested carried from a belt conveyor 11 and then is carried in from a carry-in/carry-out port 101 is stored at a specific shelf by a carrier robot. The air temperature in the enclosure is controlled at a specific temperature by an air circulation fan 104 and the product which is infected out of the hole provided on a distribution panel installed on the rear surface of the product storage shelf toward the shelf is maintained at a specific temperature. A product which has been already subjected to an operation test for a specific amount of time is carried to the carry-in/out port by a carrier robot and then is returned to the belt conveyor again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant temperature test apparatus, and more particularly to a constant temperature test apparatus which can be incorporated in a production line.

[0002]

2. Description of the Related Art Electrical equipment such as car audio components is assembled by a flow work using a belt conveyor, and is shipped after performing an operation inspection at a predetermined temperature. Therefore, it is important to improve the productivity by incorporating a constant temperature test device that performs an operation test while maintaining the product in a predetermined temperature state into the production line.

That is, a constant temperature test apparatus incorporated in a production line is required to meet the following requirements. 1. To be able to hold the product under test in the test equipment for a certain period of time to test at the specified temperature. 2. There is little temperature disturbance in the test equipment due to loading of the test target product into the test equipment or unloading of the test target product from the test equipment. 3. It shall be possible to sequentially take in the products to be tested conveyed by the belt conveyor and to return the products to be tested that have been tested to the belt conveyor in sequence. 4. Power can be supplied to the product under test during the constant temperature test. 5. The constant temperature test device itself can be downsized.

[0004]

However, conventionally, a safe type or a belt conveyor type has been used as the constant temperature test device. The safe type constant temperature test device is a so-called constant temperature bath, and the operation test of the product is performed by storing the product in a housing with a door and maintaining it at a predetermined temperature.

Therefore, in this type of constant temperature test apparatus, a so-called batch process can be performed and a plurality of products can be tested at one time, but they cannot be incorporated in a production line and continuously tested. On the other hand, a belt conveyor type constant temperature test device performs an operation test of a product by mounting the product on a belt conveyor installed in a tunnel controlled to a predetermined temperature.

Therefore, in this type of constant temperature test apparatus, although it can be incorporated in a production line to conduct continuous tests, the temperature becomes unstable near the inlet and outlet, or long-term tests are performed. When doing so, it is inevitable that the device becomes large. Furthermore, in order to detect the occurrence of abnormalities by testing the product in the operating state, it is necessary to install a power supply means for each product and an operating state transmitting means for transmitting the operating state of the product along the belt conveyor. However, when the number of products under test is large, the power supply means and the operating state transmission means are complicated and cannot be used as a practical device.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a constant temperature test apparatus that can be incorporated in a production line to perform continuous tests and can be downsized. And

[0008]

A constant temperature test apparatus according to a first aspect of the present invention has a rectangular parallelepiped casing and stores a lattice-shaped product storage shelf for storing a product to be tested and air at a predetermined temperature. The air supply device for supplying and the air of the predetermined temperature supplied from the air supply device are equalized so that the amount of heat supplied by the air of the predetermined temperature supplied from the air supply device to each of the product storage shelves becomes equal. And a distribution plate for distributing.

The constant temperature test apparatus according to the second aspect of the present invention further includes a transfer robot for transferring the test object product from a carry-in / carry-out shelf which is a specific one of the product storage shelves to a predetermined shelf other than the carry-in / carry-out shelf. To have. A constant temperature test apparatus according to a third aspect of the invention is a carry-in / carry-out robot that carries in a product to be tested from a belt conveyor to the carry-in / carry-out shelf via a carry-in / carry-out port opened in a housing, or carries out the product from the carry-in / carry-out shelf to the belt conveyor. And a shutter that opens the loading / unloading port when loading / unloading the product to be tested by the loading / unloading robot and closes the loading / unloading port at other times.

[0010]

According to the constant temperature test apparatus of the first invention, since the amount of heat supplied to each product storage rack is uniform, the test target product is retained by holding the test target product on the product storage rack for a certain time or longer. It is maintained at a predetermined temperature. According to the constant temperature test apparatus of the second invention, the test object product is automatically conveyed from the carry-in / carry-out shelf to a predetermined product storage shelf or in the opposite direction.

With the constant temperature test apparatus according to the third aspect of the present invention, even when the test object product is taken in and out of the carry-in / carry-out shelf, the temperature disturbance in the apparatus is suppressed.

[0012]

1 is a perspective view of an embodiment of a constant temperature test apparatus according to the present invention, in which a heat-insulated rectangular parallelepiped casing 10 has a belt conveyor 11 on a side surface provided with a loading / unloading port 101.
It is placed so that it touches. A product storage shelf 102 for storing the test target product is installed in the rear half of the housing 10, and a transfer robot 103 for transferring the test target product to the product storage shelf at a predetermined position is installed in the front half. Has been done.

That is, the traveling motor 103a is the traveling screw 1
03b is rotated to drive the traveling screw 103b.
The platform 103c on which the lifting device that fits in is mounted is horizontally moved. The lifting device is composed of a lifting screw 103d in a vertical direction, an elevator 103e fitted to the lifting screw 103d, and a lifting motor 103f integrated with the elevator 103e,
When the lifting motor 103f rotates, the elevator 103e
Moves up and down.

Therefore, the elevator 103e can access the product storage rack at a predetermined position by controlling the rotation speeds of the traveling motor 103a and the lifting motor 103f. An air cylinder (not shown) for moving the product to be tested between the product storage shelf 102 and the elevator 103e is mounted on the elevator 103e.

Further, on the upper surface of the housing 10, an air circulation fan 104 for setting the temperature of the air inside the housing 10 to a predetermined temperature and circulating it inside the housing 10 is installed. FIG. 2 is a Y-Y sectional view of the constant temperature test apparatus, in which the air in the housing 10 is circulated in the direction of the arrow by the air circulation fan 104. That is, the air having a predetermined temperature discharged from the air circulation fan 104 descends along the back surface of the housing 10, and passes through the ventilation holes 106 formed in the distribution plate 105 installed on the back surface of the product storage shelf 102, thereby allowing the product storage shelf 102 to pass through. Is supplied to.

The air having a predetermined temperature is stored in the product storage shelf 102.
After applying a certain amount of heat to the product under test stored inside,
It is sucked into the air circulation fan 104. Then, the air is adjusted to a predetermined temperature in the air circulation fan 104, and then discharged from the air circulation fan 104 again. In this embodiment, since the air circulation fan 104 is attached to the upper part of the housing 10, the temperature inside the housing is not uniform and a temperature distribution is generated from the upper part to the lower part.

Therefore, in order to make the amount of heat supplied to each product storage shelf uniform, a distribution plate 105 for adjusting the flow rate of the air flowing through each product storage shelf is provided for each product storage shelf. That is, in the distribution plate 105, the temperature of the product to be tested stored in each product storage shelf is predetermined when the temperature distribution in the holes of the punching board in which holes having a predetermined diameter are formed at a predetermined uniform pitch is in a steady state. It is manufactured by closing each product storage shelf so that the product has a constant value. The distribution plate 105 may be adjusted once.

FIG. 3 is a sectional view taken along line XX of the constant temperature test apparatus. Of the product storage shelves 102, the product storage shelf closest to the carry-in / carry-out port 101 is used as a carry-in / carry-out shelf 102a. A loading / unloading robot 106 for horizontally moving the product to be tested is attached to the loading / unloading port 101.
The loading / unloading robot 106 has a plate 106a and a plate 106 on which a product to be tested is mounted and moves horizontally.
It is composed of a plate driving air cylinder 106b for driving a.

That is, when the product to be tested conveyed by the belt conveyor 11 (see FIG. 1) reaches the plate 106a, the plate driving air cylinder 106b is activated to mount the plate 106a on which the product to be tested is mounted on the housing 10. Product to be tested is drawn in and carried in / out shelf 102
Store in a. Further, the test target product stored in the carry-in / carry-out shelf 102a by the transfer robot 103 after completion of the test in the constant temperature test apparatus is returned to the belt conveyor 11 again by the carry-in / carry-out robot 106.

A shutter 107a for opening and closing the carry-in / carry-out 101 is provided above the carry-in / carry-out 101, and a shutter-driving air cylinder 1 for driving the shutter 107.
07a and are attached. That is, the transfer robot 10
While the product to be tested by 3 is moving, the shutter 107 moves up to open the loading / unloading port 101, and in other cases, the shutter 107 closes the loading / unloading port 101 to prevent the temperature in the housing 10 from being disturbed. Suppress.

Each product storage shelf 102 is provided so that the test target product can be operated while the test target product is in the constant temperature test apparatus and whether the operation is normal or not can be determined.
A terminal for power supply and a terminal for operating state transmission are installed in the terminal. When the product to be tested is stored in the product storage shelf 102, the product to be tested is brought into contact with these two types of terminals to be in an operating state, and the operating state is output to the outside.

Further, the product to be tested is the transfer robot 103.
In order to maintain the operating state during transfer between the loading / unloading shelf 102a and the product storage shelf 102, the transfer robot 1
A large-capacity capacitor (not shown) is mounted on the elevator 103e of No. 03 and functions as a power source for the test target product. A control device 12 is attached to the housing 10 in order to cause the entire constant temperature test apparatus to function as described above.

[0023]

According to the constant temperature test apparatus of the first invention, it is possible to maintain a predetermined temperature without monitoring and controlling the temperature of each product stored in each product storage shelf. According to the constant temperature test apparatus of the second invention, it is possible to take products in and out of the product storage shelves in a fixed order, and it is possible not only to carry out an operation test for a predetermined fixed time. The device itself can be downsized.

According to the constant temperature test apparatus of the third invention, it is possible to take in the product to be tested from the belt conveyor or return it to the belt conveyor. Therefore, the apparatus is arranged at right angles to the traveling direction of the belt conveyor. Therefore, it is possible to save the arrangement space.

[Brief description of drawings]

FIG. 1 is a perspective view of a constant temperature test apparatus according to the present invention.

FIG. 2 is a YY cross-sectional view of a constant temperature test apparatus according to the present invention.

FIG. 3 is a sectional view taken along line XX of the constant temperature test apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Housing 101 ... Carry-in / carry-out port 102 ... Product storage shelf 103 ... Conveyance robot 104 ... Air circulation fan 105 ... Distribution plate 106 ... Carry-in / carry-out robot 107 ... Shutter 11 ... Belt conveyor 12 ... Control device

Claims (3)

[Claims] 1. A constant temperature test apparatus having a rectangular parallelepiped casing, comprising: a lattice-shaped product storage shelf for storing a product to be tested; and an air supply device for supplying air of a predetermined temperature, A distribution plate that distributes the air of the predetermined temperature supplied from the air supply device such that the amount of heat supplied by the air of the predetermined temperature supplied from the air supply device to each of the product storage shelves becomes equal. A constant temperature test device equipped. 2. The transfer robot according to claim 1, further comprising a transfer robot that transfers the test object product from a specific one of the product storage shelves to a predetermined shelf other than the input / output shelf. Constant temperature test equipment. 3. A carry-in / carry-out robot that carries in a product to be tested from a belt conveyor to the carry-in / carry-out shelf through a carry-in / carry-out port opened in a housing, or carries out from the carry-in / carry-out shelf to a belt conveyor, and the carry-in / carry-out. The constant temperature test apparatus according to claim 2, further comprising: a shutter that opens the loading / unloading port when loading / unloading the test target product by the robot and closes the loading / unloading port at other times.