CN114104575B - Mistake proofing material system of server SMT production line - Google Patents

Abstract

The invention discloses an error-proofing material system of a server SMT production line, which comprises a material cabinet, a plurality of tray bins arranged on the material cabinet, feeding trays which are arranged in the tray bins in a pluggable manner, a plurality of station trays arranged in an SMT chip mounter and a controller, wherein each tray bin is provided with a normally closed bin door, bin identification codes for identifying bin information of the tray bin are arranged on each bin door, feeding identification codes for identifying feeding information corresponding to the feeding trays are arranged on each feeding tray, and feeding identification codes for identifying feeding information corresponding to the station trays are arranged on each station tray; the controller is used for respectively scanning the feeding identification code and the bin space identification code during feeding to insert the feeding tray into the corresponding tray bin, scanning the feeding identification code during feeding, and opening the corresponding bin gate according to the matched feeding information and bin space information. The invention can effectively prevent operators from feeding wrong materials, avoid repairing accidents and improve the production efficiency of the SMT production line of the server.

Description

A server SMT production line error prevention system

Technical Field

The present invention relates to the technical field of servers, and in particular to a server SMT production line error-proofing system.

Background technique

With the development of China's electronic technology, more and more electronic devices have been widely used.

The server is an important component of electronic equipment and is a device that provides computing services. Since the server needs to respond to service requests and process them, it should generally have the ability to provide and guarantee services. Depending on the type of service provided by the server, it can be divided into file servers, database servers, application servers, WEB servers, etc.

In the era of big data, a large number of IT equipment will be concentrated in data centers. These data centers contain various types of servers, storage, switches, a large number of cabinets and other infrastructure. Each IT device is composed of various hardware boards, such as computing modules, memory modules, storage modules, chassis, etc., and various hardware boards are usually equipped with multiple electronic parts, which are usually divided into pin-in parts and SMT patch parts.

At present, in the server SMT (Surface Mounted Technology) industry, trays are commonly used for SMT patch parts loading. This is because tray loading can protect the pins of some large non-BGA (Ball Grid Array) electronic parts from deformation, and can also facilitate pre-programming of some electronic parts.

In the prior art, on the server SMT production line, the loading tray is usually manually inserted into the station of the STM placement machine, and then the material is clamped from the station by a robotic arm. However, the loading trays are generally stacked in an open manner at the side of the production line. When used for a long time, it is easy to have problems such as chaotic stacking of trays, mixed loading of materials in the trays, and operators easily taking and placing them randomly. This leads to the risk of operators loading the wrong materials or taking the wrong trays when loading materials to the SMT placement machine. If the wrong materials are loaded in batches, the server components will be returned for repair, resulting in huge losses.

Therefore, how to effectively prevent operators from putting on the wrong materials, avoid rework accidents, and improve the production efficiency of the server SMT production line is a technical problem faced by technical personnel in this field.

Summary of the invention

The purpose of the present invention is to provide a server SMT production line error prevention system, which can effectively prevent operators from loading wrong materials, avoid rework accidents, and improve the production efficiency of the server SMT production line.

In order to solve the above technical problems, the present invention provides a server SMT production line error-proofing system, comprising a material cabinet, a plurality of tray bins arranged on the material cabinet, a loading tray pluggably arranged in each of the tray bins and used for temporarily storing materials, a plurality of station trays arranged in an SMT placement machine, and a controller, wherein a normally closed bin door is provided at the bin exit of each of the tray bins, each of the bin doors is provided with a bin position identification code for identifying its bin position information, each of the loading trays is provided with a loading identification code for identifying the loading information corresponding thereto, and each of the station trays is provided with a replenishment identification code for identifying the replenishment information corresponding thereto;

The controller is used to scan the loading identification code of the loading tray and the corresponding warehouse door's warehouse identification code respectively when loading materials, so as to insert the loading tray into the corresponding pallet warehouse, and to scan the replenishment identification code of the workstation tray when replenishing materials, and open the corresponding warehouse door according to the loading information and warehouse location information that match the replenishment information.

Preferably, it also includes a code scanner connected to the controller signal and used to scan the bin location identification code, the loading identification code or the replenishment identification code.

Preferably, the controller is integrated and installed on the material cabinet.

Preferably, it also includes a display screen which is arranged on the material cabinet and connected to the controller signal and is used to display prompt information.

Preferably, each of the pallet bins is provided with an electronic lock which maintains a signal connection with the controller and is used to control the opening and closing status of the corresponding bin door.

Preferably, the electronic lock is a spring lock that springs the door open to the outside of the pallet bin.

Preferably, each of the pallet bins is also provided with an in-place sensor for detecting whether the loading pallet is in place, and the material cabinet is also provided with an alarm connected to the in-place sensor signal and for issuing an alarm when the loading pallet is not in place.

Preferably, an electrical control cabinet is provided in the material cabinet, which is connected to the controller and the electronic lock signal and is used to control the locking state of the electronic lock according to the control instruction of the controller.

Preferably, a wiring trough for accommodating the control signal cable of the electronic lock is further provided in the material cabinet, and a sealing door that can be opened and closed is sealed on the notch of the wiring trough.

Preferably, a plurality of load-bearing pads for reducing pressure are provided at the bottom of the material cabinet.

The server SMT production line error-proofing system provided by the present invention mainly includes a material cabinet, a pallet warehouse, a warehouse door, a loading pallet, a station pallet, a controller, and a warehouse identification code, a loading identification code, and a refilling identification code. Among them, the material cabinet is the main component of the system, which is mainly used to store a certain amount of materials and install the remaining components. The pallet warehouse is arranged on the material cabinet, and generally multiple pallets are arranged at the same time, and each pallet warehouse is used to temporarily store different materials. The loading pallet is stored in each pallet warehouse, and generally multiple pallets are used at the same time, and each loading pallet corresponds to a pallet warehouse, which is mainly used to temporarily store a certain amount of the same material, so as to realize a large amount of centralized loading of the same material, and then facilitate the subsequent refilling of the SMT placement machine. At the same time, the loading pallet can be inserted and slid in each pallet warehouse, so that the operator can realize the storage and taking of the loading pallet in the pallet warehouse. The station pallet is arranged in the SMT placement machine, which is mainly used to hold materials for the robot arm to clamp. Generally, multiple pallets are configured at the same time, and the same material is held in the same station pallet. The position identification code is set on the door of each pallet bin to identify the position information of each pallet bin. The loading identification code is set on each loading pallet to identify the loading information corresponding to each loading pallet. The replenishment identification code is set on each station pallet to identify the replenishment information corresponding to each station pallet. The controller has two main functions. On the one hand, when loading the material cabinet, the loading identification code of the loading pallet currently being loaded and the position identification code on the door of a corresponding pallet bin are scanned respectively, so that the bin door is opened to allow the operator to insert the loading pallet into the corresponding pallet bin, and establish a unique correspondence between the loading pallet and the pallet bin or between the loading information and the position information; on the other hand, when replenishing the SMT placement machine, the replenishment identification code of the station pallet currently in need of replenishment is scanned, and the corresponding loading information is matched in the material cabinet according to the replenishment information in the replenishment identification code, and the corresponding position information is further obtained, and then the corresponding bin door is opened accordingly, so that the operator can take the loading pallet from the opened bin door to perform the replenishment operation. In this way, the server SMT production line error-proofing system provided by the present invention, through the action of the controller, stores multiple materials in each tray bin of the material cabinet through the unique corresponding loading tray. When the SMT placement machine is out of material, the controller identifies the replenishment information of the current station tray that is short of material, and opens the door of the tray bin on the material cabinet that currently stores the short of material accordingly. Since the bin door is a normally closed door, the operator can only take the loading tray from the opened bin door, thereby effectively preventing the operator from loading the wrong material, avoiding rework accidents, and improving the production efficiency of the server SMT production line.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic diagram of the overall structure of a specific implementation method provided by the present invention.

FIG. 2 is a schematic diagram of a control structure of a specific implementation mode provided by the present invention.

FIG. 3 is a schematic diagram of the specific structure of the pallet bin in an open state.

FIG4 is a schematic diagram of the specific structure of the electrical control cabinet.

FIG5 is a schematic diagram of a control interface of a controller.

Among them, in Figures 1 to 4:

SMT placement machine—a;

Material cabinet—1, pallet bin—2, loading pallet—3, work station pallet—4, controller—5, barcode scanner—6, display—7, electronic lock—8, in-position sensor—9, alarm—10, load-bearing pad—11;

Warehouse door—21, electrical control cabinet—101, wiring duct—102, sealed door—103.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of the overall structure of a specific implementation method provided by the present invention.

In a specific embodiment provided by the present invention, the server SMT production line error-proofing system mainly includes a material cabinet 1, a tray warehouse 2, a warehouse door 21, a loading tray 3, a work station tray 4, a controller 5, and a warehouse location identification code, a loading identification code, and a replenishment identification code.

Among them, the material cabinet 1 is the main component of this system, which is mainly used to store a certain amount of materials and install other components.

The pallet bin 2 is arranged on the material cabinet 1 , and generally a plurality of pallet bins are arranged at the same time, and each pallet bin 2 is used for temporarily storing different materials.

The loading tray 3 is stored in each tray bin 2. Generally, multiple loading trays 3 are used at the same time, and each loading tray 3 corresponds to a tray bin 2. It is mainly used to temporarily store a certain amount of the same material, so as to realize the centralized loading of a large amount of the same material, and then facilitate the subsequent replenishment of the SMT placement machine a. At the same time, the loading tray 3 can be inserted and slid in each tray bin 2, so that the operator can store and take the loading tray 3 in the tray bin 2.

The station tray 4 is arranged in the SMT placement machine a, and is mainly used to hold materials for the robot arm to pick up. Generally, multiple station trays 4 are configured at the same time, and the same station tray 4 holds the same kind of materials.

The bin identification code is set on the bin door 21 of each pallet bin 2 to identify the bin information of each pallet bin 2, mainly including the bin serial number, such as BOX code, etc., and may also include the bin location, bin status, bin size, etc.

The loading identification code is set on each loading tray 3 to identify the loading information corresponding to each loading tray 3, mainly including the material code of the material contained in the loading tray 3, such as PN code, SN code, etc., and may also include the quantity of the contained material, material size, etc.

The material replenishment identification code is set on each workstation tray 4 to identify the material replenishment information corresponding to each workstation tray 4, mainly including the material code of the current processing material contained in the workstation tray 4, such as TP code or PN code, SN code, etc., and can also include the workstation serial number of the workstation tray 4, the maximum loading quantity, etc.

The controller 5 has two main functions. On the one hand, when loading materials into the material cabinet 1, the loading identification code of the loading tray 3 currently being loaded and the storage location identification code on the door 21 of a corresponding pallet warehouse 2 are scanned respectively, so that the door 21 is opened to allow the operator to insert the loading tray 3 into the corresponding pallet warehouse 2, and establish a unique corresponding relationship between the loading tray 3 and the pallet warehouse 2 or between the loading information and the storage location information; on the other hand, when replenishing materials for the SMT placement machine a, the replenishment identification code of the workstation tray 4 that currently needs to be replenished is scanned, and the corresponding loading information is matched in the material cabinet 1 according to the replenishment information in the replenishment identification code, and the corresponding storage location information is further obtained, and then the corresponding warehouse door 21 is opened accordingly, so that the operator can take the loading tray 3 from the opened door 21 to perform the replenishment operation.

In this way, the server SMT production line error-proofing system provided in this embodiment, through the action of the controller 5, stores multiple materials in each tray bin 2 of the material cabinet 1 through the unique corresponding loading tray 3. When the SMT placement machine a is out of material, the controller 5 identifies the replenishment information of the station tray 4 that is currently out of material, and opens the bin door 21 of the tray bin 2 on the material cabinet 1 that currently stores the missing material accordingly. Since the bin door 21 is a normally closed door, the operator can only take the loading tray 3 from the opened bin door 21, thereby effectively preventing the operator from loading the wrong material, avoiding rework accidents, and improving the production efficiency of the server SMT production line.

As shown in FIG. 2 , FIG. 2 is a schematic diagram of a control structure of a specific implementation mode provided by the present invention.

In order to facilitate the controller 5 to obtain the feeding information, the warehouse location information and the replenishing information, a barcode scanner 6 is added in this embodiment. Specifically, the barcode scanner 6 maintains a signal connection with the controller 5 and can be operated by an operator or a robot arm, and is mainly used to scan the feeding identification code, the warehouse location identification code and the replenishing identification code. Generally, the barcode scanner 6 can adopt a barcode scanning gun, a barcode scanning probe, a camera of a smart device, etc. Correspondingly, in this embodiment, the feeding identification code, the warehouse location identification code and the replenishing identification code are specifically two-dimensional codes, and of course they can also be in the form of barcodes, etc.

To facilitate stable installation of the controller 5, in this embodiment, the controller 5 is integrated and installed on the material cabinet 1. Specifically, considering that the pallet bin 2 on the material cabinet 1 occupies most of the volume, in order to avoid affecting the opening of the pallet bin 2, in this embodiment, the controller 5 is set at a corner position on the material cabinet 1, such as the upper right corner. Generally, the controller 5 can be a PC, a host computer, etc.

As shown in FIG. 5 , FIG. 5 is a schematic diagram of a control interface of the controller 5 .

Furthermore, in order to facilitate the operator to clearly understand the system progress and system events, and to facilitate the operator to intervene in the control and perform operations such as loading materials into the pallet warehouse 2 and taking materials from the pallet warehouse 2, a display screen 7 is added in this embodiment. Specifically, the display screen 7 is set on the material cabinet 1, and can generally be embedded on the side wall of the material cabinet 1, so as to facilitate the operator to observe. At the same time, the display screen 7 maintains a signal connection with the controller 5, and is provided with an operation interface for human-computer interaction with the operator. Usually, prompt information can be popped up to the operator through the operation interface to remind the operator to perform operations such as replenishing materials, loading materials, and taking materials. At the same time, instructions can be issued to the controller 5 through the operation interface, such as opening all the warehouse doors 21 through the controller 5 to clear the inventory, etc., and the operation records can also be queried.

In order to facilitate the automatic opening and closing control of the door 21 of each pallet bin 2, an electronic lock 8 is added in this embodiment. Specifically, the electronic lock 8 is arranged in each pallet bin 2, and maintains a locking connection with the bin door 21 at the physical end, and maintains a signal connection with the controller 5 at the signal end. Under normal conditions, the electronic lock 8 is kept in a normally closed state, so that the bin door 21 is kept in a closed state for a long time; when the electronic lock 8 receives the door opening command sent by the controller 5, the electronic lock 8 controls the physical end to break the locking connection with the bin door 21, and unlocks the bin door 21.

Furthermore, in order to facilitate the operator to quickly and accurately determine the tray bin 2 currently in the unlocked state, in this embodiment, the electronic lock 8 is specifically a spring lock, which can not only be physically disconnected from the bin door 21, but also be able to pop out the bin door 21 to the outside of the tray bin 2, such as rotating the bin door 21 to the outside of the tray bin 2, etc. In this way, when a certain station in the SMT placement machine a is out of material, the corresponding station tray 4 will be lifted to the top of the station, and the SMT placement machine a will issue a material replenishment reminder alarm to the operator. When the operator scans the replenishment identification code of the lifted station tray 4 through the barcode scanner 6, the controller 5 can issue a door opening control command to the electronic lock 8 in the corresponding tray bin 2, so that the electronic lock 8 opens the corresponding bin door 21 and pops the bin door 21 out of the tray bin 2, and the operator can clearly observe the popped-out bin door 21, thereby accurately taking out the correct loading tray 3 from the tray bin 2.

As shown in FIG. 4 , FIG. 4 is a schematic diagram of the specific structure of the electrical control cabinet 101 .

In order to facilitate the accurate and rapid control of each electronic lock 8 by the controller 5, an electrical control cabinet 101 is additionally provided in the present embodiment. Specifically, the electrical control cabinet 101 is integrated in the material cabinet 1, such as being provided in the lower right corner area of the material cabinet 1, and simultaneously maintaining signal connection with the controller 5 and the electronic lock 8, and is mainly used to implement corresponding control measures according to the control instructions of the controller 5 to control the locking state of the electronic lock 8. Generally, the electrical control cabinet 101 is mainly provided with electrical components such as PLC, main switch, surge switch, air switch, plug, switching power supply, terminal block, relay, etc. Among them, PLC is the control unit that controls the entire electrical control cabinet 101, and the electronic lock 8 can be controlled by the DC signal of PLC. When the controller 5 sends an unlocking signal to the PLC, the PLC controls the electronic lock 8 to switch to the unlocking state by controlling the DC signal of the switching power supply. The main switch controls the power on and off of the entire electrical control cabinet 101, the air switch is responsible for the on and off of the internal sub-circuit, the plug is mainly used to provide power supply to other peripherals, the terminal block is mainly used to connect the lines of the equipment inside the screen and the equipment outside the screen, and plays a role in signal (current and voltage) transmission. The relay is mainly used to control the on and off execution of door lights, etc.

As shown in FIG. 3 , FIG. 3 is a schematic diagram of the specific structure of the tray compartment 2 in an open state.

In addition, in order to ensure that the loading tray 3 in the material cabinet 1 can be loaded in time and that there is always a certain amount of stored materials in the material cabinet 1, an in-place sensor 9 and an alarm 10 are added in this embodiment. Among them, the in-place sensor 9 is arranged in each pallet bin 2, and is mainly used to detect whether the corresponding loading tray 3 is normally in place. Specifically, the in-place sensor 9 can be a pressure sensor, and is arranged on the bottom surface of the pallet bin 2, so as to sense the in-place status of the loading tray 3 through pressure changes; the in-place sensor 9 can also be a photoelectric sensor, and is arranged on the inner wall of the pallet bin 2, so as to sense the in-place status of the loading tray 3 through feedback of light being blocked or reflected. The alarm 10 is generally arranged on the material cabinet 1, such as a conspicuous position such as the top of the material cabinet 1, and maintains a signal connection with the in-place sensor 9. When the loading tray 3 in a pallet bin 2 is not normally in place, an alarm is issued to remind the operator to check and load the material in time.

Considering that in the material cabinet 1, each electronic lock 8 is mainly connected to the electrical control cabinet 101 through a physical cable, when the number of pallet bins 2 is large, the number of electronic locks 8 also increases accordingly, and the number of physical cables is also greater. In order to facilitate cable routing, this embodiment also provides a wiring trough 102 in the material cabinet 1. Specifically, the wiring trough 102 is generally provided between two adjacent rows of pallet bins 2 and extends in the vertical direction, and is mainly used for centralized routing of control signal cables of each electronic lock 8. In addition, in order to avoid accidental touch and cable leakage, this embodiment also provides an openable and closable sealing door 103 on the notch of the wiring trough 102. In normal times, the sealing door 103 keeps the wiring trough 102 sealed, and in an emergency, the sealing door 103 can be opened, and the control signal cable in the wiring trough 102 can be used to manually intervene to control the electronic lock 8 to unlock it.

In order to reduce the pressure of the material cabinet 1 on the ground and prevent the ground or the material cabinet 1 from being damaged by friction, the present embodiment also provides a plurality of load-bearing pads 11 at the bottom of the material cabinet 1. Specifically, the load-bearing pads 11 can be elastic pads, such as rubber pads, etc., which can absorb impact vibrations through elastic deformation, reduce the impact of the outside world on the material cabinet 1, and reduce the pressure by using its large surface area.

The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a server SMT production line mistake proofing material system which characterized in that, including material cabinet (1), set up in a plurality of tray storehouse (2) on material cabinet (1), pluggable in set up each tray storehouse (2) and be used for the material of temporary storage material tray (3), set up in SMT chip mounter (a) a plurality of station tray (4), controller (5), each tray storehouse (2) go out storehouse mouth department all is provided with bin gate (21) of normal close, each be provided with on bin gate (21) and be used for the position identification code of its position information of sign, each be provided with the material of being used for the sign of the material information that corresponds on material tray (3) and be provided with the material of the benefit identification code of the material information that is used for the sign that is corresponding on station tray (4);

the controller (5) is used for respectively scanning a feeding identification code of the feeding tray (3) and a bin position identification code of the corresponding bin gate (21) during feeding so as to insert the feeding tray (3) into the corresponding tray bin (2), establish a unique corresponding relation between the feeding tray (3) and the tray bin (2), scan the feeding identification code of the station tray (4) during feeding, further acquire the corresponding bin position information according to the feeding information matched with the feeding information, and open the corresponding bin gate (21);

the device also comprises a code scanner (6) which is connected with the controller (5) in a signal way and is used for scanning the bin identification code, the feeding identification code or the feeding identification code;

and each tray bin (2) is internally provided with an on-site sensor (9) for detecting whether the feeding tray (3) is in place, and the material cabinet (1) is also provided with an alarm (10) which is connected with the on-site sensor (9) through signals and is used for giving an alarm when the feeding tray (3) is not in place.

2. The server SMT production line error proofing system according to claim 1, wherein said controller (5) is integrally mounted on said material cabinet (1).

3. The server SMT production line error proofing system according to claim 2, further comprising a display screen (7) arranged on the material cabinet (1) and in signal connection with the controller (5) for displaying prompt messages.

4. The server SMT production line error proofing system according to claim 1, wherein an electronic lock (8) is arranged in each tray bin (2) in signal connection with the controller (5) for controlling the switching state of the corresponding bin gate (21).

5. The server SMT production line error proofing system according to claim 4, wherein said electronic lock (8) is a latch that latches said bin gate (21) out of said pallet bin (2).

6. The server SMT production line error proofing system according to claim 4, wherein an electrical control cabinet (101) in signal connection with the controller (5) and the electronic lock (8) and used for controlling the locking state of the electronic lock (8) according to the control instruction of the controller (5) is arranged in the material cabinet (1).

7. The server SMT production line mistake proofing system according to claim 4, wherein a wiring groove (102) for accommodating a control signal cable of the electronic lock (8) is further arranged in the material cabinet (1), and a sealing door (103) capable of being opened and closed is sealed on a notch of the wiring groove (102).

8. The server SMT production line error proofing system according to claim 1, wherein the bottom of the material cabinet (1) is provided with a number of load bearing pads (11) for reducing the pressure.