Manufacturing method of non-standard detection equipment for control box

Abstract

A manufacturing method for non-standard detection equipment of a control box comprises the following steps: S1, analyzing requirements, clearing specific test requirements, and designing an electrical schematic diagram; s2, determining the number of components and the number and type of I / O interfaces of equipment; s3, selecting the material and size of the equipment case; s4, integrally designing and shaping the test bed; s5, the panel identification graph is printed on the test bench panel; s6, machining the test bed; step S7, installing a component; s8, welding a test bench cable and manufacturing a matched test cable; and S9, debugging and accepting the test bed, and completing the manufacturing of the non-standard detection equipment. By applying the method, the development time of non-standard detection equipment is shorter, and the efficiency is higher; machining is convenient, and equipment research and development cost is low; the manufactured equipment is more attractive in appearance, the panel font identification is higher in adhesive force and not prone to being scratched, and the service life of the equipment is longer.

Description

Technical Field

[0001] The present invention relates to a manufacturing method for non-standard detection equipment of control boxes, and particularly to a manufacturing method for non-standard detection equipment of power supply and distribution control boxes in aviation electrical products. Background Art

[0002] At present, there are many types of power supply and distribution control boxes for aviation electrical products, and the update speed is fast. They belong to customized research and development, and are non-standard products. For newly developed products, it is necessary to comprehensively detect their functions and performances, and detection equipment is required for product tests under various environmental conditions in the field. However, the development time for such detection equipment is usually extremely short. It is necessary to design and manufacture supporting non-standard detection equipment for control box products within 1 week or less to meet the requirements of product acceptance and factory tests. This poses strict requirements on the development and manufacturing time of non-standard detection equipment for product tests. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that during the development of non-standard electrical detection equipment, the development time is seriously insufficient. A feasible manufacturing method is provided for the rapid development of non-standard detection equipment manufacturing to quickly design and develop non-standard detection equipment for control boxes to complete the detection tasks of product functions and performances in various product tests.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: A manufacturing method for non-standard detection equipment of control boxes includes the following steps: Step S1: Requirement analysis, clarifying specific test requirements, and designing electrical schematic diagrams; Step S2: Determining the number of components and the number and type of device I / O interfaces; Step S3: Selecting the material and size of the equipment chassis; Step S4: Overall design and finalization of the test bench; Step S5: Printing the panel identification diagram onto the test bench panel; Step S6: Machining the test bench; Step S7: Installing components; Step S8: Welding the test bench cables and manufacturing supporting test cables; Step S9: Debugging and accepting the test bench to complete the manufacturing of non-standard detection equipment.

[0005] The beneficial effects of adopting the above technical solutions are as follows: 1. Applying the present invention makes the development time of non-standard detection equipment shorter and the efficiency higher; 2. The present invention is convenient for processing and has a low equipment R & D cost; 3. The equipment manufactured by the present invention has a more beautiful appearance, higher adhesion of the panel font markings and is not easily scratched, and the service life of the equipment will be longer. Detailed implementation manners

[0006] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0007] The overall equipment adopts plastic boxes or chassis of different specifications according to the actual situation, and the raw materials are freely processed by mechanical processing methods. For the processing of the panel font markings, the current printing technology is used. It is recommended to choose a laser marking machine or a UV printer for panel printing, which greatly shortens the panel production cycle. Compared with outsourcing the manufacturing of PVC films, a large amount of equipment manufacturing time and processing costs will be saved, enabling more time for the design of the circuit electrical principle and the assembly connection between components during the equipment manufacturing process. If time permits, the commissioning and acceptance of the equipment will be more careful and the manufacturing quality will be more reliable.

[0008] A manufacturing method for a non-standard detection device of a control box includes the following steps: Step S1: Requirement analysis, clarify specific test requirements, and design the electrical schematic diagram; In the embodiment of the present invention, first, according to the product circuit detection schematic diagram, considering the input and output points of the product interface, the number of switch quantity circuits, the number of analog quantity circuits, the connection relationship between the terminal blocks and the test terminals, etc., the circuit schematic diagram of the non-standard detection device (test bench) is designed, and then the test bench assembly wiring table and the supporting cable manufacturing wiring table are compiled through the schematic diagram.

[0009] Step S2: Determine the number of components and the number and type of the device I / O interfaces; In the embodiments of the present invention, first, according to the analysis in step S1, the types and quantities of components used are determined. Considering that the test bench often needs to be used in field tests and should be easy to carry, factors such as portability, ease of operation, and convenience of maintenance are taken into account. For digital signals, except for the load-carrying switch of the equipment control switch which selects a larger power switch, the rest are preferably small toggle switches for control; for analog signals, such as the detection of the analog quantity output by the current sensor inside the product, the test interface is directly introduced to the test bench panel using binding posts, and an external instrument is used for detection. Red and black binding posts are used to represent the positive and negative poles of the acquisition end respectively; for the selection of the product feedback indicator light, the issues of size and the glare of the light during the operation of the equipment by the tester should be considered. It is recommended to select a round-edge green-emitting green LED lamp and make it into a lamp board for easy installation; the color and quantity of the binding posts, etc.; the I / O interface of the equipment is determined by the total number of required points, and usually different specifications of DB plugs are selected as the input and output interfaces of the equipment, and the anti-error function needs to be considered.

[0010] Step S3: Selection of the material and size of the equipment chassis; In the embodiments of the present invention, considering the quantity, type, and external size of the components determined in step S2, a plastic box or chassis of what specification and size is comprehensively considered for installing and arranging all components; (metal chassis, small plastic waterproof box, large waterproof box, etc.).

[0011] Step S4: Finalize the overall design of the test bench; In the embodiments of the present invention, it includes finalizing the design of the identification pattern on the test bench panel and finalizing the selection of the connectors for the input and output interfaces of the equipment; combining step S2 and step S3, according to the size of the test bench panel selected in step S3, the size of the components, as well as the safety and convenience of the subsequent operation by the equipment users, should be comprehensively considered to reasonably arrange the installation positions of each component; use CAD or other electrical design drawing tools to draw the panel identification diagram. When drawing, the installation positioning points, sorting, identification, etc. of the components should be considered; the electrical safety performance of the equipment and the anti-error function of the I / O interface of the equipment; the design consideration of the supporting test cables. Considering the test environment of the test product, the focus is on the material of the supporting cables. High-temperature cables are used, which can meet the product detection requirements in high-temperature, high-altitude, and mechanical vibration environments, as well as standard DB plugs to save R & D costs, and aviation plugs are used for the supporting test products.

[0012] Step S5: Print the panel identification diagram onto the test bench panel; In the embodiments of the present invention, first, according to the panel design drawing, the panel identification pattern is printed onto the test panel using printing technology; before printing the panel drawing, the designed CAD file of the panel identification drawing needs to be converted into a picture format file using drawing software such as PS, and then it is recommended to directly print the panel identification drawing using a UV printer. Its printing ink directly covers the test bench body, with high adhesion and not easy to fall off, preventing mechanical friction damage, and chemical substances such as alcohol are not likely to damage the panel identification.

[0013] Step S6: Machining the test bench; In the embodiments of the present invention, first, according to the printed panel identification drawing, use machining tools to machine and form according to the positioning points on the printed drawing. During the machining process, the size of the components should be considered, and different drills and tools should be replaced according to different devices to machine the test bench panel, including machining the installation hole positions of components, test terminals, and the installation hole positions of I / O interface connectors.

[0014] Step S7: Installing components; In the embodiments of the present invention, first install the components onto the machined panel according to the corresponding identification positions. Before installation, consider the size and installation sequence of each component, whether it affects the installation and fastening of subsequent devices, and whether the subsequent assembly wiring is convenient for welding connection and other processes.

[0015] Step S8: Welding the test bench cables and manufacturing the supporting test cables; In the embodiments of the present invention, first manufacture the test bench and the supporting test cables according to the wiring diagram in Step S1; during the manufacturing process of the test bench and the supporting test cables, consider the current size that the connecting wires between devices can withstand, use cables of different specifications and wire diameters, consider the equipment usage environment and product test conditions, and it is recommended to select high-temperature insulated wire and cable, which is suitable for the product to conduct environmental, vibration and other tests. Identification sleeves are printed at both ends of the internal cables of the test bench and at both ends of the test cables for convenient subsequent maintenance and transformation, and the supporting test cables are passed through high and low temperature resistant protective insulation sleeves for wire harness protection.

[0016] Step S9: Debugging and accepting the test bench, and completing the manufacture of non-standard testing equipment; In the embodiments of the present invention, according to the schematic diagram in Step S1 and the design in Step S4, accept the manufactured test bench and the supporting test cables to complete the equipment manufacture.

[0017] Step S4 of the present invention is obtained by comprehensively processing Step S1, Step S2 and Step S3; the order of Step S5 and Step S6 can be determined according to the actual situation. If the actual conditions permit, printing the panel drawing and machining can be combined into one step and executed synchronously using equipment such as a CNC machine tool (equipped with a marking head), a laser marking machine, a drilling and integrating machine, and a 3D printer (with drilling function); however, if there is only an original manual machining device, Step S5 needs to be carried out first. After using a printing device such as a laser marking machine or a UV printer to complete printing the panel drawing, Step S6 machining is carried out according to the printed positioning holes.

Claims

1. A method for manufacturing a non-standard detection device for a control box, characterized in that: It includes the following steps: Step S1: Demand analysis, clarifying specific test requirements, and electrical schematic design; Step S2: Determine the number of components and the number and type of device I / O interfaces; Step S3: selecting equipment chassis material and size; Step S4: Finalization of the overall design of the test bench; Step S5: Printing the panel identification diagram onto the test bench panel; Step S6: machining test bench; Step S7: installing components; Step S8: welding of test bench cables and manufacturing of matching test cables; Step S9: Debugging and accepting the test bench to complete the manufacturing of non-standard testing equipment; The step S4 includes finalizing the design of the test bench panel identification pattern and the selection and finalizing of the device input and output interface connectors.

2. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S1 includes the following steps: Step S11: According to the product circuit detection schematic diagram, the non-standard detection equipment circuit schematic diagram is designed from the number of input and output points, the number of switch quantity paths, the number of analog quantity paths, the connection relationship between the terminal blocks and the test terminals of the product interface; Step S12: compile a test bench assembly wiring table and a matching cable manufacturing wiring table through the schematic diagram.

3. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S2 includes the following steps: Step S21: Determine the type and quantity of components used according to the analysis in step S1; Step S22: Determine the type and quantity of switches. Except for the load switch, which uses a relatively large power switch, the other control switches of the equipment should be controlled by small toggle switches as much as possible. Step S23: Determine the analog quantity. When the current sensor is used inside the detection product to output the analog quantity, the test interface is directly introduced into the test bench panel using the terminal block, and then detected by an external instrument. The red and black terminals are used to represent the positive and negative poles of the acquisition end respectively. Step S24: Determine the selection of the product feedback indicator light, select a round LED light with green edges and green light, and make it into a light board for easy installation; Step S25: Determine the selection of the color and quantity of the binding posts; Step S26: The device I / O interface is determined by the total number of demand points, and DB plugs of different specifications are selected as the device input and output interfaces.

4. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S3 includes the following steps: Step S31: Determine the number of components, device types, and dimensions according to step S2; Step S32: Determine the size of the plastic box or chassis to be used for installing and arranging all components according to the usage.

5. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S4 includes the following steps: Step S41: Arrange the installation positions of various components reasonably according to the size of the test bench panel selected in step S3; Step S42: Use CAD or other electrical design drawing tools to draw a panel identification diagram, and draw the installation positioning points, sorting and identification of components; Step S43: The electrical safety performance of the equipment and the I / O interface of the equipment must have an error prevention function; Step S44: The supporting test cable focuses on the material of the supporting cable. High-temperature cables are used, which can withstand product testing requirements in high temperature, high altitude and mechanical vibration environments, as well as standard DB plugs. The supporting test products use aviation plugs.

6. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S5 includes the following steps: Step S51: Printing the panel identification pattern onto the test panel using printing technology according to the panel design drawing; Step S52: before printing the panel diagram, the designed panel logo diagram CAD file is converted into a picture format file using PS drawing software; Step S53: Use a UV printer to directly print the panel identification pattern, and the printing ink directly covers the test bench body.

7. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S6 includes the following steps: Step S61: using a machining tool according to the printed panel identification diagram; Step S62: Processing and shaping according to the positioning points of the printed diagram, and determining the size of the components during the processing; Step S63: using different drill bits and cutting tools according to different components to perform mechanical processing on the test bench panel; Machining includes mounting holes for components, test terminals, and I / O interface connectors.

8. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S7 includes the following steps: Step S71: Install the components on the processed panel according to the corresponding marked positions.

9. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S8 includes the following steps: Step S81: manufacturing a test bench and matching test cables according to the wiring table in step S1; Step S82: In the process of manufacturing the test bench and the supporting test cables, high temperature insulated wires and cables are selected; Step S83: Print identification sleeves at both ends of the cable inside the test bench and at both ends of the test cable; Step S84: Put the matching test cables through high and low temperature resistant insulating sleeves to protect the wiring harness.

10. The method for manufacturing a non-standard detection device for a control box according to claim 1, characterized in that: Step S9 includes the following steps: Step S91: According to the schematic diagram in step S1 and the design in step S4, the manufactured test bench and the supporting test cables are inspected and accepted to complete the equipment manufacturing.