Jig for installing shielding cover

Abstract

The utility model discloses a jig for installing a shielding cover, which comprises a base, the upper surface of the base is fixedly connected with a handle fixing shell, the outer wall of the handle fixing shell is fixedly connected with a foldable handle, the upper surface of the base is fixedly connected with a button fixing shell, and the button fixing shell is fixedly connected with a button. The upper surface of the base is fixedly connected with a power source and air source connecting shell, the upper surface of the handle fixing shell is fixedly connected with a replaceable fixing panel, the upper surface of the replaceable fixing panel is fixedly connected with a PCB relative shielding cover positioning plate, the upper surface of the replaceable fixing panel is fixedly connected with an air cylinder fixing gantry, and the upper surface of the air cylinder fixing gantry is fixedly connected with an air cylinder. The outer wall of the air cylinder fixing gantry is fixedly connected with a downward pressing air cylinder, and the lower end of the downward pressing air cylinder is fixedly connected with an upper mold pressing plate. By means of the structure, the effects that manual pressing work is reduced, except manual product taking in the operation process, other parts are all achieved through the jig, and the operation process is reduced can be achieved.

Description

Technical Field

[0001] The utility model belongs to the field of communication product testing, and in particular relates to a pressing fixture for a PCBA shielding cover. Background Art

[0002] Shielding is a device method in electrical engineering. In order to prevent external electric fields, magnetic fields or electromagnetic fields from interfering with internal equipment or to avoid the influence of the electromagnetic field of the equipment on the outside world, the equipment is placed in a closed or nearly closed metal shell or metal mesh cover, which is called a shielding cover. In order to avoid mutual electromagnetic interference between components or to avoid external electromagnetic interference to each component, existing precision electronic devices usually set shielding covers on corresponding components. One type of existing shielding cover is to set pins at the bottom of the shielding cover and set a snap-fit ​​structure at the corresponding position of the periphery of the component on the PCB board, so that the shielding cover can be pressed and fixed to the outside of the component on the PCB board under the action of external force.

[0003] The existing PCB shielding cover pressing needs to be done manually, which will lead to:

[0004] 1. The PCBA mainboard and the opposite-sex shielding cover cannot be mounted. Separate operations increase the number of operators and operation time, and the efficiency is not high.

[0005] 2. Working for a long time will increase employees' "mental fatigue", which will increase the probability of product defects.

[0006] 3. The existing technology cannot meet the quality efficiency, thus wasting manpower and material resources.

[0007] Abandoning the previous "manual pressing of shielding cover" operation method, a jig is used to automatically press the PCBA and shielding cover to achieve product quality effects, thereby reducing manpower, ensuring quality and improving efficiency. The specific summary is as follows:

[0008] 1. The manual pressing operation of the shielding cover is integrated to improve the operation efficiency.

[0009] 2. Reduce the number of workstations, reduce the operating stress of products, and improve the operating yield of products.

[0010] 3. The jig presses the shielding cover to reduce operation time, improve quality and reduce production costs. Utility Model Content

[0011] The purpose of the utility model is to provide a jig for installing a shielding cover to solve the problems raised in the above background technology.

[0012] To achieve the above-mentioned purpose, a jig for installing a shielding cover is provided, comprising a base, the upper surface of the base is fixedly connected with a handle fixing shell, the outer wall of the handle fixing shell is fixedly connected with a foldable handle, the upper surface of the base is fixedly connected with a button fixing shell, the upper surface of the base is fixedly connected with a power supply and air source connection shell, the upper surface of the handle fixing shell is fixedly connected with a replaceable fixing panel, the upper surface of the replaceable fixing panel is fixedly connected with a PCB relative shielding cover positioning plate, the upper surface of the replaceable fixing panel is fixedly connected with a cylinder fixing gantry, the outer wall of the cylinder fixing gantry is fixedly connected with a downward pressing cylinder, the lower end of the downward pressing cylinder is fixedly connected with an upper mold plate, the inner wall of the button fixing shell is fixedly connected with a first starting switch, the inner wall of the button fixing shell is fixedly connected with a power switch, and the inner wall of the button fixing shell is fixedly connected with a delay device.

[0013] Preferably, an emergency stop button is fixedly connected to the inner wall of the button fixing shell, and a second starting switch is fixedly connected to the inner wall of the button fixing shell.

[0014] Preferably, the PCB relative to the shielding cover positioning plate includes: a shielding cover edge limit block and a PCB positioning pin, the shielding cover edge limit block is fixedly connected to the upper surface of the replaceable fixed panel, and the PCB positioning pin is fixedly connected to the inner wall of the shielding cover edge limit block.

[0015] Preferably, the inner wall of the cylinder fixed gantry is fixedly connected with a vertical stroke positioning column, and the upper mold plate is slidably connected to the inner wall of the vertical stroke positioning column.

[0016] Preferably, a plurality of mounting holes are provided on the inner wall of the shell for connecting the power source and the gas source, and a test board is movably connected to the inner wall of the PCB relative to the positioning plate of the shielding cover.

[0017] Preferably, there are two foldable handles, and the foldable handles are made of metal.

[0018] Preferably, the power source and gas source connection housing is fixedly connected to the inner wall of the handle fixing housing, and the button fixing housing is fixedly connected to the inner wall of the handle fixing housing.

[0019] The beneficial effects of the utility model are as follows: compared with the prior art, the upper mold pressing plate, the PCB relative shielding cover positioning plate, and the lower pressure cylinder are provided to facilitate the automatic pressing of products containing PCB boards; the first start switch, the delay device, the emergency stop button, and the second start switch are provided to facilitate the operator to control and set the pressing time and strength, thereby reducing manual pressing work, and except for manual product picking during the operation, the rest is all achieved by the jig, reducing the operation process; in addition, the jig pressing the shielding cover can greatly improve the pressing quality, improve the consistency of the product, reduce the operation time, and greatly improve the operation efficiency of the product.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0022] Figure 1 This is a front view of a jig for installing a shielding cover according to the utility model;

[0023] Figure 2 It is a partial top view exploded view of a jig for installing a shielding cover according to the utility model;

[0024] Figure 3 It is a partial schematic diagram of a foldable handle in a jig for installing a shielding cover according to the utility model;

[0025] Figure 4 It is a partial schematic diagram of a downward pressure cylinder in a jig for installing a shielding cover of the utility model;

[0026] Figure 5 It is a partial schematic diagram of a PCB positioning pin in a jig for installing a shielding cover according to the utility model;

[0027] Legend:

[0028] 1. Replaceable fixed panel; 2. Down-pressing cylinder; 3. Vertical stroke positioning column; 4. PCB relative shielding cover positioning plate; 41. Shielding cover edge limit block; 42. PCB positioning pin; 5. Upper mold plate; 6. First start switch; 7. Delay; 8. Emergency stop button; 9. Power switch; 10. Second start switch; 11. Foldable handle; 12. Cylinder fixing gantry; 13. Test board; 14. Handle fixing shell; 15. Power and air source connection shell; 16. Button fixing shell; 17. Base. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0030] Reference Figures 1 to 4 The utility model embodiment provides a jig for installing a shielding cover, which includes a base 17, the upper surface of the base 17 is fixedly connected with a handle fixing shell 14, the outer wall of the handle fixing shell 14 is fixedly connected with a foldable handle 11, the upper surface of the base 17 is fixedly connected with a button fixing shell 16, the upper surface of the base 17 is fixedly connected with a power supply and air source connection shell 15, the upper surface of the handle fixing shell 14 is fixedly connected with a replaceable fixed panel 1, the upper surface of the replaceable fixed panel 1 is fixedly connected with a PCB relative shielding cover positioning plate 4, the upper surface of the replaceable fixed panel 1 is fixedly connected with a cylinder fixing gantry 12, the outer wall of the cylinder fixing gantry 12 is fixedly connected with a downward pressure cylinder 2, the lower The lower end of the pressing cylinder 2 is fixedly connected to the upper mold plate 5, the inner wall of the button fixing shell 16 is fixedly connected to the first starting switch 6, the inner wall of the button fixing shell 16 is fixedly connected to the power switch 9, the inner wall of the button fixing shell 16 is fixedly connected to the timer 7, the model of the pressing cylinder 2 is TN20-100S-90, the foldable handle 11 can be rotated along the hinge, so that the device can be conveniently moved and carried, the inner wall of the pressing cylinder 2 is connected to an air pipe, one end of the air pipe is connected to an electromagnetic valve 4V210-08, one side of the electromagnetic valve is connected to an AR2000 air pressure regulating valve through an air pipe, and one end of the AR2000 air pressure regulating valve is connected to an air source through an air pipe, so that the movement of the pressing cylinder 2 can be effectively controlled.

[0031] The inner wall of the button fixing shell 16 is fixedly connected with an emergency stop button 8, the inner wall of the button fixing shell 16 is fixedly connected with a second starting switch 10, the PCB relative shielding cover positioning plate 4 includes: a shielding cover edge limit block 41, a PCB positioning pin 42, the shielding cover edge limit block 41 is fixedly connected to the upper surface of the replaceable fixed panel 1, the PCB positioning pin 42 is fixedly connected to the inner wall of the shielding cover edge limit block 41, the inner wall of the cylinder fixing gantry 12 is fixedly connected with a vertical stroke positioning column 3, and the upper mold plate 5 is slidably connected to the vertical stroke positioning column 3 The inner wall of the power supply and gas source connection shell 15 is provided with multiple mounting holes, the PCB is movably connected with a test board 13 on the inner wall of the shielding cover positioning plate 4, the number of the foldable handles 11 is two, and the material of the foldable handles 11 is metal, the power supply and gas source connection shell 15 is fixedly connected to the inner wall of the handle fixing shell 14, the button fixing shell 16 is fixedly connected to the inner wall of the handle fixing shell 14, and the mounting hole of the power supply and gas source connection shell 15 is connected with a 24V DC power supply interface and an 8MM air inlet, so as to meet the effect of powering on the entire device.

[0032] Positioning method: PCB positioning pins 42, pressure spring columns and shielding cover edge limit blocks 41 are designed on the PCB relative to the shielding cover positioning plate 4 to meet the needs of single-board testing in factory production, avoid the incoming material panel connection area, and ensure the operating accuracy during pressing. At the same time, it is equipped with an air pressure regulating valve to control the downward pressure of the entire operation process as needed.

[0033] Working principle: When pressing the shielding cover, place the test board 13 on the PCB relative to the shielding cover positioning plate 4, and achieve positioning through the shielding cover edge limit block 41 and the PCB positioning pin 42. By pressing the start button, the first start switch 6 and the second start switch 10, the cylinder is pressed down to start pressing. When the pressing and holding pressure setting time is reached, the cylinder automatically stops working, thereby completing the pressing operation of the fixture.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A jig for installing a shielding cover, comprising a base (17), characterized in that: The upper surface of the base (17) is fixedly connected to a handle fixing shell (14), the outer wall of the handle fixing shell (14) is fixedly connected to a foldable handle (11), the upper surface of the base (17) is fixedly connected to a button fixing shell (16), the upper surface of the base (17) is fixedly connected to a power supply and air source connection shell (15), the upper surface of the handle fixing shell (14) is fixedly connected to a replaceable fixing panel (1), and the upper surface of the replaceable fixing panel (1) is fixedly connected to a PCB relative shielding The cover positioning plate (4) is fixedly connected to the upper surface of the replaceable fixed panel (1) with a cylinder fixed gantry (12), the outer wall of the cylinder fixed gantry (12) is fixedly connected to the downward pressure cylinder (2), the lower end of the downward pressure cylinder (2) is fixedly connected to the upper mold plate (5), the inner wall of the button fixed shell (16) is fixedly connected to the first starting switch (6), the inner wall of the button fixed shell (16) is fixedly connected to the power switch (9), and the inner wall of the button fixed shell (16) is fixedly connected to the timer (7).

2. A jig for installing a shielding cover according to claim 1, characterized in that: An emergency stop button (8) is fixedly connected to the inner wall of the button fixing housing (16), and a second starting switch (10) is fixedly connected to the inner wall of the button fixing housing (16).

3. The jig for installing a shielding cover according to claim 1, characterized in that: The PCB relative shielding cover positioning plate (4) comprises: a shielding cover edge limiting block (41) and a PCB positioning pin (42); the shielding cover edge limiting block (41) is fixedly connected to the upper surface of the replaceable fixed panel (1), and the PCB positioning pin (42) is fixedly connected to the inner wall of the shielding cover edge limiting block (41).

4. The jig for installing a shielding cover according to claim 1, characterized in that: The inner wall of the cylinder fixed gantry (12) is fixedly connected with a vertical stroke positioning column (3), and the upper mold plate (5) is slidably connected to the inner wall of the vertical stroke positioning column (3).

5. The jig for installing a shielding cover according to claim 1, characterized in that: The inner wall of the power supply and gas source connection housing (15) is provided with a plurality of mounting holes, and the PCB is movably connected to a test board (13) relative to the inner wall of the shielding cover positioning plate (4).

6. The jig for installing a shielding cover according to claim 1, characterized in that: The number of the foldable handles (11) is two, and the material of the foldable handles (11) is metal.

7. The jig for installing a shielding cover according to claim 1, characterized in that: The power source and gas source connection housing (15) is fixedly connected to the inner wall of the handle fixing housing (14), and the button fixing housing (16) is fixedly connected to the inner wall of the handle fixing housing (14).

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