Substrate for printed circuit board assembly

FIELD: electricity.

SUBSTANCE: pins in a rigid substrate as per version 1 are set on the flat working surface. The height of the pins above the working surface does not exceed the height of a printed circuit board. The rigid substrate as per version 2 is fitted with threaded holes in the flat working surface.

EFFECT: provision for the automatic assembly of radioelectronic components on printed circuit boards and reduced materials consumption.

9 cl, 2 dwg

 

Area of technology

The invention relates to electrical engineering, namely to the Assembly and installation of printed circuit boards. The claimed basis for the Assembly of printed circuit boards used in the production of works of Assembly and installation of printed circuit boards.

Background art.

Analogue grounds for PCB Assembly is a clamping device for mounting boards (RF patent No. 113106 for RPMS, IPC H05K 13/06, H05K 13/04, H05K 1/18, 2011 [1]) that contains the base and clamps. At the base, which houses the printed circuit Board, is deepening.

The disadvantage of analogue [1] is the presence of the recess in the base. In the Assembly of printed circuit boards on the basis of the analog deflection occurs in the place of the recess. Especially when assembling thin boards. This leads to a lower accuracy of mounting of electronic components, which leads to the increase of marriage.

Analogue grounds for Assembly of printed circuit boards is a device for the manufacture of printed circuit boards (Asarin, V. I., "multi-layer printed wiring in instrumentation, automation and computer engineering". Ed Belevcev A. T. M.: Mashinostroenie, 1978, p. 189-191 [2], in which is disclosed a steel plate with fixed therein by pins located in the coordinates of the fixing technological hole boards-parts, and two steel plates with holes corresponding to the pins, the length of W�of IPTV designed that when laying the WFP package, auxiliary parts and steel plates and compress the pins do not protrude beyond the outer surface of the third (upper) plate.

The disadvantage of analogue [2] is that the fixture is used to assemble and bonding WFP. The presence of the upper plate and the length of the pins, which exceeds the height of the PCB, does not allow the device to serve for the Assembly of printed circuit boards. Long pins are an obstacle head Assembly of the machine when installing electronic components onto the circuit Board. Performing the bottom plate is not rigid leads to the need for additional plates, which increases the intensity of the fixture.

The specified device [2] is the essential signs of the closest device to the same destination to the claimed invention. Therefore, it is taken as a prototype of the claimed invention.

Disclosure of the invention

The technical result provided by the claimed invention group is to enable automatic mounting of electronic components on printed circuit boards. Another technical result provided by each of the claimed invention is the reduction of material consumption.

Summary of the invention according to embodiment 1 is that DOS�tion for the Assembly of printed circuit boards is provided with pins, located on a flat working surface. Differs from the prototype in that the rigid base and the height of the pin above the work surface does not exceed the height of the PCB that is placed on this surface when using the base.

The base may be in the form of a plate including a rectangular shape. The plate may be made of metal, preferably of aluminum.

The pins may be metal, preferably from aluminum.

Summary of the invention according to embodiment 2 is that the basis for the Assembly of printed circuit boards is provided with fixation elements, which are located on the flat working surface of base. Is characterized in that the base is rigid and fixation elements made in the form of threaded holes.

The base is preferably made of a metal plate of rectangular shape.

Brief description of the drawings

Figure 1 shows a diagram of the grounds for Assembly of printed circuit boards according to embodiment 1.

Figure 2 shows a diagram of the grounds for Assembly of printed circuit boards according to embodiment 2.

Implementation of utility models

The basis for the Assembly of printed circuit boards according to embodiment 1 consists of a rigid aluminum base plate (1) (figure 1). The thickness of the plate (1) 3-5 mm. the Working surface is the upper surface of the plates� (1), designed for placement on a PCB. The working surface of the base is planar. On the working surface placed pins.

Aluminum pins (2) are fixed on the working surface of the base. The pins 2 are arranged in a row along one of the edges of the base. The height of the pins (2) above the work surface does not exceed the height of the PCB that is placed on this surface when using the base. The base has at least 2 dowel pin (2).

The order of use

The PCB perform with openings corresponding in shape and location to the pins (2) on the base. The circuit Board is placed on the base so that the pins (2) into the holes on the circuit Board.

Then the bottom with the circuit Board is fixed on the frame Assembly of the machine, and then using this machine, make installation of electronic components on the printed circuit Board. Due to the fact that the Foundation is rigid and has a flat working surface, the printed circuit Board does not bend under its own weight. Since the height of the pins does not exceed the height of the PCB, it prevents contact of the mechanism of installation of electronic components and pins (2) grounds. The presence of the pins (2) prevents the displacement of the printed circuit Board relative to the base.

Then the bottom with the circuit Board placed in a furnace, g�e occurs sewing conclusions electronic components.

After that, the assembled printed circuit Board is removed from the base, which can be re-used.

Thus, it follows from the foregoing that the claimed basis for the Assembly of printed circuit boards according to embodiment 1 of the claimed technical result: "enabling automatic mounting of electronic components on printed circuit boards" and "reducing the consumption of materials is achieved due to the fact that the rigid base and the height of the pins (2) above the work surface does not exceed the height of the PCB that is placed on this surface when using the base.

The basis for the Assembly of printed circuit boards according to embodiment 2 consists of a rigid aluminum base plate (1) (figure 2). The thickness of the plate (1) 3-5 mm. the Working surface is the upper surface of the plate (1) designed to accommodate printed circuit boards. The working surface of the base is planar. On the working surface is placed in the threaded hole.

Threaded holes (3) arranged in a row along one of the edges of the Foundation the Foundation has at least 2 holes (3).

The order of use

The PCB perform with openings corresponding in shape and position of the holes (3) on the base. The circuit Board is placed on the base so that the holes in the circuit Board are aligned with the holes (3) in the base Then fix the PCB on the base screws.

Then the bottom with the circuit Board is fixed on the frame Assembly of the machine, and then using this machine, make installation of electronic components on the printed circuit Board. Due to the fact that the Foundation is rigid and has a flat working surface, the printed circuit Board does not bend under its own weight. This increases the accuracy of installation of components and quality of installation. The presence of holes with thread (3) and screws prevents the displacement of the printed circuit Board relative to the base.

Then the bottom with the circuit Board placed in a furnace where the brazing conclusions electronic components.

After that, the assembled printed circuit Board is removed from the base, which can be re-used.

Thus, it follows from the foregoing that the claimed basis for the Assembly of printed circuit boards according to embodiment 2 of the claimed technical result: "enabling automatic mounting of electronic components on printed circuit boards" and "reducing the consumption of materials is achieved due to the fact that the ground hard, and fixation elements made in the form of threaded holes.

The author made prototypes of the claimed group of inventions, test which confirmed the achievement of the technical result.

The claimed group of grounds for Assembly of printed circuit boards implemented � using commercially available devices and materials, each of which can be manufactured in any industrial establishment and will find wide application in the field of electronics, namely during manufacture and Assembly of printed circuit boards.

Sources of information

1. Patent RF No. 113106 for RPMS, IPC H05K 13/06, H05K 13/04, H05K 1/18, 2011.

2. Asarin, V. I., "multi-layer printed wiring in instrumentation, automation and computer engineering". Ed Belevcev A. T. M.: Mashinostroenie, 1978.

1. The basis for the Assembly of printed circuit boards, provided with pins, which are arranged on a flat working surface, characterized in that the rigid base and the height of the pin above the work surface does not exceed the height of the PCB that is placed on this surface when using the base.

2. The base according to claim 1, characterized in that it is made in the form of a plate.

3. The base according to claim 2, characterized in that the plate has a rectangular shape.

4. The base according to claim 1, characterized in that it is made of metal.

5. The base according to claim 4, characterized in that it is made from aluminium.

6. The base according to claim 1, characterized in that the pins are made of metal.

7. Base on p 6, characterized in that the metal pins are made from aluminium.

8. The basis for the Assembly of printed circuit boards, provided with fixation elements, which are arranged on a flat working �poverhnosti grounds characterized in that the base is rigid and fixation elements made in the form of threaded holes.

9. The base according to claim 8, characterized in that it is made in the form of a metal plate of rectangular shape.



 

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