JP2007075927A - Round type production system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a round type production system capable of efficiently proceeding each production process of a product. <P>SOLUTION: This round type production system is provided with a rotatable round table 1 for mounting an assembly 4, a dispenser 10 as tool equipment arranged around the round table 1, a breakdown voltage inspecting device 11, a performance shipment inspecting device 12, a laser marking device 13, a carrying device 14 and an appearance inspecting device 15. The system proceeds the production process of the assembly 4, while rotating the round table 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a round type production system that can efficiently proceed with each production process relating to a product.

  FIG. 3 is a block diagram showing a conventional production system for a series of production processes from substrate division to packing of products. In the figure, a production process of a small DC-DC converter is shown. In these previous processes, components are mounted on a printed circuit board constituting the small DC-DC converter. The production process includes a first step of dividing a printed circuit board on which components are mounted, a second step of applying silicone to a transformer mounted on the printed circuit board, and then assembling the case to the printed circuit board, and the dielectric strength of the assembly. A third step for inspecting whether or not the reference value is exceeded, a fourth step for inspecting whether the performance of the assembly satisfies the standard, a fifth step for laser marking the assembly with, for example, a lot number, and the assembly The 6th process which performs the external appearance inspection, and the 7th process which packs the assembly which can be shipped as a product. The operations in these processes are performed on work tables 100 to 106 arranged in a straight line. In accordance with this, tool devices such as dispensers, inspection devices, laser marking devices, and various jigs used in each process are appropriately installed on the work tables 100 to 106, and the workers 110 to 116 are provided to the work tables. One person is assigned to 100-106.

  The printed circuit board divided by the worker 110 is sent to the work table 101 of the worker 111 who performs the next process, and thereafter, the flow work is performed in which the assembly is sequentially sent from the previous process to the next process. The product is completed.

  However, in the conventional production method, since the production line is extended in a straight line, a plurality of workers are required, so that the cost is high and it is difficult to cope with a large variety of small-quantity production.

With respect to this problem, in Patent Document 1, a plurality of facilities from a first facility used in the first process to a final facility used in the final process are arranged in a U-shape at a predetermined interval, One facility and the final facility are brought close to each other, and an area surrounded by these facilities is used as a work area. Thereby, even one worker can efficiently perform the first process to the final process.
JP 2004-66372 A

  However, when sending an assembly from the previous process to the next process, it is troublesome for the operator to move the work area with the assembly. Even when an assembly is transported using a conveyor, the path of the conveyor has to be arranged in a U-shape, which requires extensive construction.

  In view of the above problems, an object of the present invention is to provide a round type production method capable of efficiently proceeding with each production process relating to a product.

  In the round type production system according to the first aspect of the present invention, the assembly includes a rotatable round table on which an assembly is placed, and a tool device disposed around the round table, and the assembly is rotated while the round table is rotated. Advance the production process.

  In this way, the assembly can be sent from the previous process to the next process simply by rotating the round table, so that the assembly of the product can be completed on one table.

  In the round type production system according to the second aspect of the present invention, the tool devices are arranged in order from assembly to inspection.

  In this way, when the production process proceeds, the round table only needs to be sequentially rotated in one direction, and the flow of the assembly becomes smooth.

  According to claim 1 of the present invention, the production line can be made compact to cope with a large variety of small-quantity production.

  According to claim 2 of the present invention, a plurality of assemblies can be flowed to the production line.

  Hereinafter, preferred embodiments of the round type production method according to the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the same location as a prior art example, and it abbreviate | omits as much as possible since description of a common part overlaps.

  FIG. 1 is a block diagram showing an outline of a round type production method according to the present invention. FIG. 2 is a perspective view showing a configuration of a production line actually installed according to the functional blocks shown in FIG. In the present embodiment as well, the production process of the small DC-DC converter will be described as in the conventional example. That is, the first to seventh steps after component mounting is performed on the printed circuit board in the previous step will be described.

  The production line mainly includes a rotatable round table 1 on which an assembly is placed, a dispenser 10 as a tool device arranged around the round table 1, an insulation withstand voltage inspection device 11, a performance shipment inspection device 12, and a laser. The marking device 13, the transport device 14, and the appearance inspection device 15, and the work tables 100 and 106 arranged in a slightly separated position in one side direction of the round table 1, in which these tool devices are not arranged. . The round table 1 and the dispenser 10 disposed around it, the withstand voltage inspection device 11, the performance shipment inspection device 12, the laser marking device 13, the transport device 14, and the appearance inspection device 15 are made of, for example, a transparent resin plate material. Although surrounded by the safety cover 18, an opening 20 facing the round table 1 and an acceptable product discharge opening 21 facing the transport device 14 are opened in the lower part of the safety cover 18 covering the one side. Is formed. The worker 3 is disposed at a position facing the round table 1 with the insertion port 20 in between. The work table 100 for performing the first step and the seventh step are performed on both sides of the worker 3. And a work table 106 to be installed.

  The round table 1 has, for example, a motor shaft 17 attached to the center of a metal disk or the like, and a transport tray 2 for mounting and fixing an assembly 4 (including a printed circuit board on which components are mounted) on its upper surface. A plurality (8 in FIG. 2) of mounting portions 25 that can be mounted are provided radially along the peripheral edge. The conveyance tray 2 is provided with a recess in the center according to the shape of the assembly 4, and a plurality of types are prepared for each series of small DC-DC converters to be produced. In the production line, it is possible to cope with a variety of small-quantity production by simply changing the transport tray 2. In the present embodiment, the second to sixth steps among the production steps are assigned to the round table 1, and each mounting portion 25 and thus the round table 1 correspond to the work tables 101 to 105 in FIG. That is, the attachment portion 25 is provided corresponding to the number of production processes assigned to the round table 1. The round table 1 of this embodiment is provided with eight mounting portions 25, five of which are assigned to the second to sixth steps, one is assigned to the inlet 20, and the remaining two are spares. Become a station.

  The tool equipment and the work space from the first process to the seventh process are arranged in the order of assembly and inspection so as to turn the round table 1 clockwise from the insertion port 20, and particularly with respect to the second to sixth processes. Are arranged at equal intervals around the round table 1 so that the central angles between the work positions of the respective steps in the round table 1 are equal. The said arrangement | positioning space | interval is adjusted so that each of the conveyance tray 2 attached to the attachment part 25 may become the front of each tool apparatus installed in each process of the 2nd-6th process. Therefore, when a plurality of assemblies 4 are arranged on the round table 1 and each production process is performed on one assembly 4, the previous production process is performed simultaneously on the adjacent assembly 4. The product can be efficiently produced by flowing a plurality of assemblies 4 to the production line.

  Although the round table 1 is rotated by the rotational force of the motor shaft 17, it is preferable to perform step control for shifting the conveyance tray 2 that comes to the front of each tool device one by one using, for example, a stepping motor or a servo motor. . In the present embodiment, the round table 1 is rotated once by eight-step rotational movement (one mounting portion 25 returns to the original position).

  In addition, in FIG. 2, an NG product discharge port 16 is provided at a position below the transfer device 14 and behind the appearance inspection device 15, so that the withstand voltage in the third step, the performance shipment inspection in the fourth step, The assembly 4 determined as a defective product (NG product) in the six-step visual inspection is carried to the NG product discharge port 16 by the transport device 14 and dropped.

  Next, a procedure for producing a small DC-DC converter will be described.

  The worker 3 divides the printed circuit board on which components are mounted on the work table 100 using, for example, a board divider. The printed circuit board divided by the work table 100 is attached to the transport tray 2 by the operator 3 and then attached to the attachment portion 25 provided on the upper surface of the round table 1 through the insertion port 20. After that, the operator 3 operates the switch box 26 installed in front of the insertion port 20 every time each process is completed, and turns the round table 1 clockwise by one step to sequentially move the assembly 4 to the next process. I will send it.

  In the second step, the case is assembled to the printed circuit board after silicone is applied to the mounted transformer, etc., and in the third step, it is inspected whether the withstand voltage of the assembly 4 is equal to or higher than the reference value. In the fourth step, the assembly is performed. Whether the performance of the product 4 satisfies the standard is inspected, and in the fifth step, the assembly 4 is laser-marked with, for example, a lot number. These steps are automatically performed in conjunction with the rotation of the round table 1, but of course, the operator 3 may perform the steps manually.

  In the round type production system of the present invention, by sharing the round table 1 in a plurality of production processes, the production lines that have been extended in a straight line are gathered together in a compact circle. Further, the round table 1 has both a function as a work table and a function as a conveying means between processes such as a conveyor. Thereby, since the assembly 4 can be sent from the previous process to the next process only by rotating the round table 1, the assembly of the product can be completed on one table. In particular, in this embodiment, since the tool devices are arranged around the round table 1 in the order of assembly to inspection, the round table 1 only needs to be sequentially rotated in one direction when the production process proceeds. The flow of the product 4 becomes smooth.

  When the assembly reaches the position of the sixth step, the transport device 14 takes out the assembly 4 from the transport tray 2 and transports it to the appearance inspection device 15. The appearance inspection apparatus 15 performs a sixth step of inspecting the appearance of the product. When the appearance inspection passes, the conveyance apparatus 14 conveys the product to the acceptable product discharge port 21. As described above, the assembly 4 that has failed the dielectric breakdown voltage in the third step, the performance shipment inspection in the fourth step and the appearance inspection in the sixth step is the position of the sixth step in the round table 1 or The appearance inspection device 15 is transported to the NG product outlet 16 by the transport device 14 and dropped. In particular, as a result of the inspection performed in the third step or the fourth step, the assembly 4 determined to be defective is sent to the position of the sixth step without performing the subsequent steps.

  The assembly 4 transported to the acceptable product discharge port 21 is carried onto the work table 106 by the operator 3 and a seventh step of packing the assembly 4 as a product is performed.

  As described above, in the round type production method of the present embodiment, the rotatable round table 1 on which the assembly 4 is placed, the dispenser 10 as the tool device disposed around the round table 1, the dielectric strength test apparatus 11, A performance shipment inspection device 12, a laser marking device 13, a transfer device 14, and an appearance inspection device 15 are provided, and the production process for the assembly 4 is advanced while the round table 1 is rotated.

  In this way, the assembly 4 can be sent from the previous process to the next process simply by rotating the round table 1, so that the assembly of the product can be completed on one table. Therefore, the production line can be made compact to cope with a large variety and small quantity production.

  Further, in the round type production method of this embodiment, the dispenser 10, the withstand voltage inspection device 11, the performance shipment inspection device 12, the laser marking device 13, the transfer device 14, and the appearance inspection device 15 are arranged in the order from assembly to inspection. Yes.

  In this way, when the production process proceeds, the round table 1 may be sequentially rotated in one direction, and the flow of the assembly 4 becomes smooth. Therefore, a plurality of assemblies 4 can be flowed to the production line.

  In addition, this invention is not limited to the said Example, It can change in the range which does not deviate from the meaning of this invention. It goes without saying that the production method of the present invention is not limited to a small DC-DC converter, and can be applied to various product production methods.

It is a block diagram which shows the outline | summary of the round type production system in this invention. It is a perspective view which shows the structure of the production line using a round type production system same as the above. It is a block diagram which shows one embodiment of the production system in a prior art example.

Explanation of symbols

1 Round table 4 Assembly
10 Dispenser (tool equipment)
11 Dielectric strength test equipment (tool equipment)
12 Performance shipment inspection equipment (tool equipment)
13 Laser marking device (tool equipment)
14 Transfer device (tool equipment)
15 Visual inspection equipment (tool equipment)

Claims (2)

A round type production comprising: a rotatable round table on which an assembly is placed; and a tool device arranged around the round table, and a production process for the assembly is advanced while the round table is rotated. method. The round type production system according to claim 1, wherein the tool devices are arranged in the order of assembly to inspection.

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