CN111285090A

CN111285090A - Feeding device and optical module testing system

Info

Publication number: CN111285090A
Application number: CN202010173378.7A
Authority: CN
Inventors: 邓高文; 章林华; 蒋俊; 蒲文婧
Original assignee: Shenzhen Sont Technology Co ltd; Jiangxi Sont Communication Technology Co ltd
Current assignee: Shenzhen Sont Technology Co ltd; Jiangxi Sont Communication Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-06-16

Abstract

The invention provides a feeding device and an optical module testing system, wherein the feeding device comprises a rack, a support plate which moves up and down on the rack, a lifting driving assembly which provides power for the support plate to move up and down, and a material pushing mechanism which executes discharging action, the material pushing mechanism comprises a push plate and a material pushing driving assembly connected with the push plate, the material pushing driving assembly drives the push plate to move along a discharging direction, so that a material tray on the support plate is pushed out when the material tray rises to the height of the push plate along with the support plate. According to the invention, the automatic feeding is realized by arranging the feeding device capable of automatically feeding the material tray into the optical module testing equipment, the feeding efficiency and the mechanization degree are improved, and the manual labor intensity is reduced.

Description

Feeding device and optical module testing system

Technical Field

The invention relates to the technical field of optical module testing, in particular to a feeding device and an optical module testing system.

Background

An optical module is an optoelectronic device for performing photoelectric and electro-optical conversion, and comprises an optoelectronic device, a functional circuit, an optical interface and the like, wherein the optoelectronic device comprises a transmitting part and a receiving part. The sending end of the optical module converts the electric signal into an optical signal, and the receiving end converts the optical signal into the electric signal. Optical modules are classified according to their packaging formats, and SFP, SFP +, SFF, gigabit ethernet interface converter (GBIC), and the like are common.

In the production and preparation process of the optical module, parameter testing is usually required to be performed on the optical module, and at present, the parameter testing is mainly performed on the optical module by means of automatic testing equipment. During testing, the optical module to be tested needs to be installed on the material disc, then the material disc is put into the automatic optical module testing equipment, and the automatic optical module testing equipment automatically grabs the optical module to be tested in the material disc for testing.

Among the prior art, rely on artifical manual feeding charging tray to optical module automatic test equipment in at present, the material loading is inefficient, influences test system's level of mechanization, and the charging tray need be raised to appointed height on just can feeding in test equipment's material assembly line, artifical intensity of labour is big.

Disclosure of Invention

Based on this, the present invention provides a feeding device and an optical module testing system, so as to solve the technical problem of low optical module feeding efficiency in the prior art.

The utility model provides a loading attachment, includes the frame be the lift removal the support plate in the frame, give the support plate provides the lift drive assembly of the power of lift removal and carries out the pushing equipment of ejection of compact action, pushing equipment include the push pedal and with the material drive assembly that pushes away that the push pedal is connected, it drives to push away material drive assembly the push pedal removes along ejection of compact direction, with charging tray on the support plate is followed the support plate rises to release the charging tray when the push pedal place is high.

Furthermore, a cavity is formed in the rack, the carrier plate moves up and down in the cavity, an opening communicated with the cavity is formed in the top end of the rack, and the material tray penetrates through the opening and then reaches the height of the push plate.

Furthermore, the feeding device also comprises at least two separating components, and all the separating components are respectively arranged on two sides of the discharging direction so as to separate the top layer material tray from the lower layer material tray when the top layer material tray passes through the opening.

Further, the separation subassembly including separate the piece and with the reset spring that the piece is connected separates, the middle part pin joint of piece in the frame, the top of separation piece moves towards a separation portion is extended to the opening, and when the top layer charging tray passes through during the opening, the top layer charging tray pushes away the separation portion forces the piece upset of separation is in order to dodge the top layer charging tray, and when the top layer charging tray passes behind the opening, reset spring promotes the piece that separates resets, so that separation portion card is gone into in the lap joint of top layer charging tray and lower floor's charging tray.

Further, loading attachment still includes first sensor, first sensor set up in the opening part, and with lift drive assembly communication connection, work as first sensor detects the top layer charging tray and reachs when the push pedal position height, lift drive assembly drive the support plate descends to separation top layer charging tray and lower floor's charging tray.

Furthermore, a material tray outlet is formed in the machine frame in the discharging direction, the material tray outlet is arranged opposite to the push plate, and the material tray outlet is connected with a material flow line of the optical module testing equipment.

Further, loading attachment still includes the second sensor, the second sensor set up in the charging tray exit, and with it connects to push away material drive assembly communication, works as the second sensor detects when there is not the charging tray in the charging tray exit, it past to push away material drive assembly the charging tray of charging tray exit propelling movement.

Furthermore, the number of the lifting driving assemblies is two, and the two lifting driving assemblies are respectively arranged on two opposite sides of the carrier plate.

Further, the feeding device further comprises a third sensor, the third sensor is arranged on the rack and is in communication connection with the lifting driving assembly, and when the third sensor detects that no material tray exists on the support plate, the lifting driving assembly drives the support plate to descend to the material supplementing station.

The invention further provides an optical module testing system, which comprises optical module testing equipment and the feeding device, wherein the feeding device is connected with the optical module testing equipment so as to convey a material tray provided with an optical module to be tested to the optical module testing equipment.

Compared with the prior art: through set up the support plate of doing the lift removal in the frame to set up the lift drive assembly that drives support plate lift removal, this kind of charging tray can rise to appointed height along with the support plate after loading on the support plate, in addition still set up the push pedal on appointed altitude position, and the material drive assembly that pushes away that the drive push pedal removed along ejection of compact direction, make after the charging tray rises to appointed height, can be released to test equipment's material assembly line by the push pedal, thereby realize automatic feeding, improve material loading efficiency and degree of mechanization, reduce artifical intensity of labour.

Drawings

FIG. 1 is a perspective view of a loading device according to a first embodiment of the present invention;

FIG. 2 is a perspective view of the loading device according to another angle in the first embodiment of the present invention;

FIG. 3 is an internal perspective view of a loading device in a first embodiment of the present invention;

FIG. 4 is an internal perspective view of the loading device in another state according to the first embodiment of the present invention;

FIG. 5 is an enlarged view taken at I in FIG. 3;

FIG. 6 is a perspective view of a pusher mechanism in a first embodiment of the present invention;

FIG. 7 is a perspective view of a position-limiting structure between the trays;

FIG. 8 is a view of the partitioning assembly in the first embodiment of the present invention with the top tray passing through the opening;

FIG. 9 is a view of the partitioning assembly of the first embodiment of the present invention after the top tray passes through the opening;

fig. 10 is an explanatory view of the installation position of the first sensor in the second embodiment of the invention;

fig. 11 is an explanatory view of the installation position of the second sensor in the second embodiment of the invention;

fig. 12 is an explanatory view of the mounting positions of third and fourth sensors in the second embodiment of the invention;

fig. 13 is a perspective view of an optical module testing system according to a third embodiment of the present invention;

fig. 14 is an engaged perspective view of a material flow line and a loading device in a third embodiment of the invention.

Description of the main elements:

100. a feeding device; 10. a frame; 20. a carrier plate; 30. a lift drive assembly; 40. a material pushing mechanism; 50. a partition member 50; 11. a cavity; 12. an opening; 41. pushing the plate; 42. a pusher drive assembly; s, discharging direction; 421. a first motor; 422. a driving gear; 423. a driven gear; 424. a conveyor belt; 13. a material tray outlet; 31. a second motor; 32. a screw rod; a. positioning the convex column; b. positioning holes; 51. a separation block; 52. a return spring; 511. a partition portion; 121. a groove; 512. a rotating shaft; 60. a first sensor; 70. a second sensor; 80. a third sensor; 200. optical module test equipment; 201. a material production line; 2. overlapping seams; 1. a material tray; 90. and a fourth sensor.

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Referring to fig. 1-6, a loading apparatus 100 according to a first embodiment of the present invention is shown, which includes a frame 10, a carrier 20 moving up and down on the frame 10, a lift driving assembly 30 providing power for the carrier 20 to move up and down, a material pushing mechanism 40 performing a material discharging operation, and a separating assembly 50 separating stacked material trays, wherein:

the inside of frame 10 is equipped with cavity 11, and support plate 20 does the lift and move in cavity 11, and the top of frame 10 is equipped with the opening 12 that communicates cavity 11, can place single charging tray or pile of charging tray that is formed by the piling up of placing of a plurality of charging trays on support plate 20, and in order to improve material loading efficiency, the blowing selection at every turn is placed the charging tray on support plate 20 and is piled up, can reduce the number of times that support plate 20 descends the feed supplement like this, improves material loading efficiency. The tray 1 on the carrier plate 20 moves up and down along with the carrier plate 20, the pushing driving assembly is disposed on the rack 10 and located above the opening 12, the pushing mechanism 40 includes a pushing plate 41 and a pushing driving assembly 42 connected to the pushing plate 41, the pushing plate 41 is disposed at a designated position above the opening 12, so that the tray 1 passes through the opening 12 and then reaches the height of the pushing plate 41 (as shown in fig. 3 and 4), the pushing plate 41 is initially located at one side of the opening 12, and the pushing driving assembly 42 drives the pushing plate 41 to move in the discharging direction S, so as to push out the tray 1 when the tray 1 rises to the height of the pushing plate 41.

Specifically, referring to fig. 6, in the present embodiment, the pushing driving assembly 42 includes a first motor 421, a driving gear 422, a driven gear 423 and a conveyor belt 424, the first motor 421 is fixedly disposed on the frame 10, the driving gear 422 and the driven gear 423 are respectively rotatably connected to the frame 10, the driving gear 422 is connected to the first motor 421, the conveyor belt 424 is connected to the driving gear 422 and the driven gear 423, the pushing plate 41 is disposed on the conveyor belt 424, and when the first motor 421 rotates forward or backward, the conveyor belt 424 is driven to transmit clockwise or counterclockwise on the driving gear 422 and the driven gear 423, so as to drive the pushing plate 41 to move or reset along the discharging direction S. However, the present application is not limited thereto, and in other embodiments, the pushing material driving assembly 42 may also be, but not limited to, a pneumatic cylinder, a hydraulic pressure, a worm gear, and other transmission structures.

In addition, rack 10 has seted up charging tray export 13 in ejection of compact direction S, and charging tray export 13 sets up with push pedal 41 relatively, and charging tray export 13 links up with optical module test equipment' S material assembly line, and push pedal 41 pushes out the charging tray from charging tray export 13 to the material assembly line on to accomplish the material loading action.

The lifting driving assemblies 30 are disposed on the frame 10 and connected to the carrier plate 20, in this embodiment, the number of the lifting driving assemblies 30 is two, and the two lifting driving assemblies 30 are respectively disposed on two opposite sides of the carrier plate 20 to synchronously drive the carrier plate 20 to lift from the two opposite sides, so as to ensure the stability of the lifting process of the carrier plate 20, and simultaneously, the lifting capability of the lifting driving assemblies 30 can be improved, so that more trays can be lifted at one time. However, the present application is not limited thereto, and in other implementations, the number of the lift driving assemblies 30 may be one, for example, only one lift driving assembly 30 is connected to the center position of the carrier plate 20, or the number of the lift driving assemblies 30 may be more than two, for example, four, and four lift driving assemblies 30 are uniformly distributed around the carrier plate 20.

Specifically, in the present embodiment, the lifting driving assembly 30 is a motor screw structure, and more specifically, the lifting driving assembly 30 includes a second motor 31 and a screw 32 connected to the second motor 31, the screw 32 penetrates through the frame 10 and is rotatably connected to the frame 10 (specifically, a bearing may be adopted to rotatably cooperate with the frame 10), the screw 32 penetrates through the carrier plate 20 and is screwed to the carrier plate 20, and when the second motor 31 rotates forward or backward, the carrier plate 20 is driven to ascend or descend according to the driving of the motor screw structure. However, the present application is not limited thereto, and in other embodiments, the lifting driving assembly 30 may also be, but not limited to, a pneumatic cylinder, a hydraulic cylinder, a rack and pinion, a linear module, and other transmission structures.

In order to prevent the trays from slipping after being stacked, a limiting structure is generally arranged between the trays, for example, the limiting structure can be a limiting structure (shown in fig. 7) formed by inserting and matching a positioning convex column a and a positioning hole b, namely, the positioning convex column a at the top of the lower tray is inserted into the positioning hole b at the bottom of the upper tray, and when the limiting structure exists between the trays, the top tray is required to be separated from the lower tray after being lifted in place, so that the top tray can be smoothly pushed by the push plate 41. Since the carrier plate 20 can be used to place a material tray stack, which is formed by stacking a plurality of material trays, the material tray currently stacked on the topmost layer is the top-layer material tray, and the top-layer material tray passes through the opening 12 earlier than the lower-layer material tray stacked on the lower layer.

For this reason, the feeding device in this application further provides at least two separation assemblies 50, and all separation assemblies 50 are respectively disposed on two sides of the discharging direction S, for example, in this embodiment, the number of separation assemblies 50 is four, two-by-two symmetry of four separation assemblies 50 is disposed on two sides of the discharging direction S, and the separation assemblies 50 are specifically embedded at the edge of the opening 12, so as to separate the top-layer tray from the lower-layer tray when the top-layer tray passes through the opening 12. Specifically, the separating assembly 50 includes a separating block 51 and a return spring 52 connected to the separating block 51, the middle of the separating block 51 is pivoted to the rack 10, a separating portion 511 extends from the top end of the separating block 51 toward the opening 12, when the top tray passes through the opening 12, the top tray pushes the separating portion 511 to force the separating block 51 to turn over to avoid the top tray (as shown in fig. 8), when the top tray passes through the opening 12, the return spring 52 pushes the separating block 51 to return to allow the separating portion 511 to be clamped into a seam 2 (which can be reserved when designing the tray) between the top tray and the lower tray (as shown in fig. 9), so that the top tray is placed on the top of the separating portion 511, and the lower tray is clamped below the separating portion 511, at this time, the carrier plate 20 can be driven by the lifting driving set to descend by a predetermined stroke (e.g. 10cn), the lower tray will fall down, and the top tray cannot fall down because of being placed on the top of the separating portion 511, thereby separating the top tray from the lower tray. The bottom of the joint of the separating part 511 and the separating block 51 adopts arc transition connection, so that the material tray can be better avoided, and the material tray can smoothly rise.

More specifically, a groove 121 is formed at the edge of each partition assembly 50, the middle part of the partition block 51 is pivoted with the inner wall of the groove 121 through a rotating shaft 512, and the pivoting point is biased to the bottom end of the partition block 51, so that it can be ensured that the bottom end of the partition block 51 does not rotate into the opening 12 during the process of turning the partition block 51 to avoid the tray, and thus, the partition block 51 does not limit the top tray from passing through the opening 12. The return spring 52 may be a torsion spring sleeved on the rotating shaft 512, and when the separating block 51 is turned over, the torsion spring elastically deforms, and when the separating block 51 loses thrust, the torsion spring drives the separating block 51 to return; or the return spring 52 may be a compression spring connected between the spacer 51 and the inner wall of the groove 121, and the spring is compressed when the spacer 51 is turned over, and pushes the spacer 51 to return when the spacer 51 loses its pushing force.

It should be noted that, when there is no limit structure between the trays, for example, when the trays are heavy or the surfaces of the trays are rough, the trays are not separated from each other in this case, and the push plate 41 can push the trays, so the feeding device may also optionally not have the partition component 50.

When in use, the lifting driving assembly 30 drives the carrier plate 20 to fall to a designated position (the position can be set as a material supplementing station), the material disc stack is manually placed on the carrier plate 20, then the lifting driving component 30 drives the carrier plate 20 to rise, so that the top tray passes through the opening 12, at this time, the top tray is separated from the lower tray, then the pushing drive assembly 42 drives the push plate 41 to move along the discharging direction S, so that the push plate 41 pushes the top layer tray out of the tray outlet 13 onto the material production line of the optical module testing equipment, thereby throwing a tray into the equipment, then the pushing driving assembly 42 drives the pushing plate 41 to reset, the lifting driving assembly 30 drives the carrier plate 20 to ascend again, so as to pass the next tray through the opening 12, so that the tray is continuously dropped into the device until there is no tray on the carrier plate 20, the lifting driving assembly 30 drives the carrier plate 20 to drop to the designated position again for feeding again.

To sum up, in the feeding device in this embodiment, the carrier plate 20 is arranged on the rack 10 for moving up and down, and the lifting driving component 30 is arranged for driving the carrier plate 20 to move up and down, so that the tray 1 can be lifted up to a specified height along with the carrier plate 20 after being loaded on the carrier plate 20, and in addition, the pushing plate 41 and the pushing driving component 42 for driving the pushing plate 41 to move along the discharging direction S are arranged at the specified height, so that after the tray 1 is lifted up to the specified height, the tray can be pushed out to the material flow line of the testing equipment by the pushing plate 41, thereby realizing automatic feeding, improving the feeding efficiency and the mechanization degree, and reducing the labor intensity.

Example two

Referring to fig. 10 to 12, a feeding device 100 according to a second embodiment of the present invention is shown, where the feeding device 100 in this embodiment is different from the feeding device 100 according to the first embodiment in that, in order to improve the degree of mechanical automation, the feeding device 100 in this embodiment further includes a first sensor 60, a second sensor 70, and a third sensor 80, where:

the first sensor 60 is disposed at the opening 12 and is in communication connection with the second motor 31, and when the first sensor 60 detects that the top tray reaches the height of the push plate 41, the lifting driving assembly 30 drives the carrier plate 20 to descend by a predetermined stroke (e.g., 10cn), so as to automatically separate the top tray from the lower tray after the top tray is in place.

The second sensor 70 is arranged at the material tray outlet 13 and is in communication connection with the first motor 421, and when the second sensor 70 detects that no material tray is arranged at the material tray outlet 13, the material pushing driving assembly 42 pushes the material tray towards the material tray outlet 13, so that the material tray is always arranged at the material tray outlet 13, a new material tray can be always ensured to flow into the material production line from the material tray outlet 13, and the supply of the material tray is ensured.

The third sensor 80 is disposed on the rack 10 and is in communication connection with the second motor 31, and when the third sensor 80 detects that there is no tray on the carrier plate 20, the lifting driving assembly 30 drives the carrier plate 20 to descend to the feeding station, so that the worker can feed the tray onto the carrier plate 20. It should be noted that, since the carrier plate 20 needs to be raised gradually to enable each tray thereon to pass through the opening 12, when the bottommost tray on the carrier plate 20 passes through the opening 12, the carrier plate 20 is also raised to the position of the third sensor 80, and the third sensor 80 determines that there is no tray on the carrier plate 20 because it senses the carrier plate 20. In addition, a fourth sensor 90 may also be provided at the feeding station to detect whether the carrier plate 20 falls into position by using the fourth sensor 90.

In specific implementation, each sensor can be in communication connection with a corresponding motor through a controller (such as a PLC), so that the sensor can firstly send a signal to the controller, and then the controller controls the corresponding motor to execute corresponding action; or the sensor can be directly connected with the corresponding motor in a communication way, in such a case, the sensor and/or the motor is/are provided with a chip with a control function, so that the sensor can directly send a signal to the motor to control the motor to execute corresponding action. In addition, the sensor employed in the present embodiment may be, but is not limited to, an infrared sensor, a magnetic induction sensor, a touch sensor, a proximity switch, a travel switch, and the like.

It should be noted that the apparatus provided in the second embodiment of the present invention has the same implementation principle and produces some technical effects as the first embodiment, and for the sake of brief description, reference may be made to the corresponding contents in the first embodiment without reference to this embodiment.

EXAMPLE III

An optical module testing system according to a third embodiment of the present invention is further provided, and shown in fig. 13-14, the optical module testing system includes an optical module testing device 200 and a loading device 100, the optical module testing device 200 includes a material flow line 201, the loading device 100 may be the loading device 100 in any of the above embodiments, the loading device 100 is connected to the optical module testing device 200, and a tray outlet 13 of the loading device 100 is connected to the material flow line 201, so that the loading device 100 can continuously and automatically put a tray 1 containing an optical module to be tested on the material flow line 201, and thus continuously convey the tray 1 containing the optical module to be tested to the optical module testing device 200. During testing, the optical module testing equipment 200 can automatically capture the optical module to be tested from the tray 1 on the material flow line 201, and transfer the captured optical module to be tested to a testing station for testing. The optical module testing apparatus 200 is not different from the existing automation apparatus for testing the optical module, and the specific structure of the optical module testing apparatus 200 is not described in detail herein. In other words, the loading device 100 in the present application can be additionally attached to the existing optical module testing apparatus 200.

To sum up, the optical module test system in the middle of this embodiment can realize automatic feeding through setting up loading attachment 100 that can put in the charging tray on material assembly line 201 automatically, improves material loading efficiency and degree of mechanization, reduces artifical intensity of labour.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a loading attachment, its characterized in that, include the frame do the lift removal in the frame the support plate, give the support plate provides the lift drive assembly of the power of lift removal and carries out the pushing equipment of ejection of compact action, pushing equipment include the push pedal and with the material pushing drive assembly that the push pedal is connected, material pushing drive assembly drives the push pedal removes along ejection of compact direction, with charging tray on the support plate is followed the support plate rises to release the charging tray when the push pedal place height.

2. The loading device according to claim 1, wherein a cavity is formed in the rack, the carrier plate moves up and down in the cavity, an opening communicated with the cavity is formed in the top end of the rack, and the tray passes through the opening and then reaches the height of the push plate.

3. The loading device according to claim 2, further comprising at least two separation members, all of which are disposed on both sides of the discharging direction to separate the top tray from the lower tray when the top tray passes through the opening.

4. The feeding device according to claim 3, wherein the separating assembly comprises a separating block and a return spring connected with the separating block, the middle part of the separating block is pivoted to the rack, a separating part extends from the top end of the separating block towards the opening, when the top-layer tray passes through the opening, the top-layer tray pushes the separating part to force the separating block to turn over so as to avoid the top-layer tray, and when the top-layer tray passes through the opening, the return spring pushes the separating block to return so as to clamp the separating part into the overlapping seam between the top-layer tray and the lower-layer tray.

5. The loading device according to claim 3 or 4, further comprising a first sensor, wherein the first sensor is disposed at the opening and is in communication connection with the lifting driving assembly, and when the first sensor detects that the top layer tray reaches the height of the pushing plate, the lifting driving assembly drives the carrier plate to fall so as to separate the top layer tray from the lower layer tray.

6. The loading device according to claim 1, wherein a tray outlet is provided in the frame in the discharging direction, the tray outlet is disposed opposite to the push plate, and the tray outlet is connected to a material flow line of the optical module testing apparatus.

7. The loading device according to claim 6, further comprising a second sensor, wherein the second sensor is disposed at the tray outlet and is in communication with the pushing driving assembly, and when the second sensor detects that there is no tray at the tray outlet, the pushing driving assembly pushes the tray toward the tray outlet.

8. The loading device according to claim 1, wherein the number of the lifting driving assemblies is two, and the two lifting driving assemblies are respectively arranged on two opposite sides of the carrier plate.

9. The loading device according to claim 1, further comprising a third sensor, wherein the third sensor is disposed on the rack and is in communication with the lifting driving assembly, and when the third sensor detects that there is no tray on the carrier, the lifting driving assembly drives the carrier to descend to the feeding station.

10. An optical module testing system, comprising an optical module testing device, and characterized by further comprising the loading device of any one of claims 1 to 9, wherein the loading device is connected with the optical module testing device to convey a tray containing an optical module to be tested to the optical module testing device.