A PCB assembly fixture

Abstract

The present application discloses a PCB assembly jig, comprising: a lifting mechanism, the lifting mechanism comprising a mounting platform and a driving rod, the driving rod being connected to the bottom of the mounting platform; an upper pressing plate, the upper pressing plate being connected to the bottom of the lifting mechanism, the driving rod being used to carry the upper pressing plate to move in a height direction, the bottom of the upper pressing plate being provided with a receiving groove for accommodating a PCB board; a lower receiving plate, the lower receiving plate being provided with a receiving hole for accommodating a pin, when the PCB board is pressed down, the top of the pin is at least partially inserted into the hole to be installed of the PCB board.

Description

Technical Field

[0001] The present application relates to the technical field of PCB assembly jigs, and in particular to a PCB assembly jig. Background Art

[0002] On PCB boards, "pin" usually refers to a pin or pin. A pin is a short column made of metal material, which is used to connect electronic components and circuit boards to conduct signals and electricity. They are the external connection points of electronic components (such as integrated circuits, resistors, capacitors, etc.), which are connected to the circuit board by inserting into the holes on the circuit board or soldering on the pads of the circuit board.

[0003] Each pin is usually made of conductive material (such as copper) and has a head and a body. The head is usually designed to be round, square or other shapes to facilitate insertion and ensure good contact. The body part of the pin is usually cylindrical with an appropriate diameter and length to fit into the hole or pad on the circuit board.

[0004] Currently, pins are often inserted manually. When workers insert pins manually, it is difficult to pick up the pins due to their small size, which makes manual insertion more difficult. In addition, the pins are combined with the PCB board in an interference fit, which makes it difficult to manually insert the pins into the PCB board, resulting in low existing assembly efficiency.

[0005] Therefore, a PCB assembly fixture is still needed to solve the above problems. Utility Model Content

[0006] The present application provides a PCB assembly jig that solves the above-mentioned problems.

[0007] The purpose of this application is achieved by the following technical solutions:

[0008] A PCB assembly jig, comprising:

[0009] A lifting mechanism, the lifting mechanism comprising a mounting platform and a driving rod, the driving rod being connected to the bottom of the mounting platform;

[0010] An upper pressing plate, wherein the upper pressing plate is connected to the bottom of the lifting mechanism, the driving rod is used to carry the upper pressing plate to move in the height direction, and a receiving groove for receiving a PCB board is provided at the bottom of the upper pressing plate;

[0011] A lower receiving plate is provided with a receiving hole for receiving the pin. When the PCB is pressed down, the top of the pin is at least partially inserted into the hole to be installed on the PCB.

[0012] In one embodiment, a propulsion member connected to the driving rod is disposed on the mounting platform, and the propulsion member has a fixed end and a movable end, the fixed end is connected to the top of the upper pressing plate, and the movable end is connected to the driving rod.

[0013] In one embodiment, a flow channel is provided on the bottom of the upper pressure plate corresponding to the receiving groove, and the receiving groove is connected to an air pump through the flow channel, so as to adsorb the PCB board in the receiving groove through negative air pressure.

[0014] In one embodiment, the upper pressing plate is further provided with an air duct. When the top of the pin is inserted into the PCB board, the extension direction of the air duct is toward the PCB board, so as to remove waste generated after the insertion.

[0015] In one embodiment, the air duct is a strip-shaped air duct, the cross-section of the strip-shaped air duct is a rectangular surface, and the angle between the rectangular surface and the bottom surface of the upper pressing plate is 45 degrees.

[0016] In one embodiment, a guide column is further included, and a limiting hole for sleeve-mounting the guide column is provided on the upper pressure plate. The limiting hole is sleeved on the peripheral side of the guide column and is used to limit the horizontal movement of the upper pressure plate when the upper pressure plate is raised or lowered.

[0017] In one embodiment, a settlement hole is further provided on the lower receiving plate, and the settlement hole is communicated with the accommodating hole for accommodating the peripheral side of the pin.

[0018] Compared with the prior art, the beneficial effects of this application include at least:

[0019] By setting a lifting mechanism to drive the upper pressing plate to rise and fall, the PCB board fixed at the bottom of the upper pressing plate can be automatically docked with the pins fixed on the lower receiving plate below, without the need to manually pick up the pins and insert them into the PCB board, thereby reducing the difficulty of assembly and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the PCB assembly fixture structure of an embodiment of the present application;

[0021] Figure 2 It is a partial structural schematic diagram of a PCB assembly fixture according to an embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the structure of the lower receiving plate of an embodiment of the present application;

[0023] Figure 4 This is a perspective structural diagram of an upper pressing plate of an embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the PCB board and pin assembly status assembled in the embodiment of the present application.

[0025] In the figure: 1. lifting mechanism; 11. mounting table; 2. upper pressure plate; 21. receiving groove; 22. flow channel; 23. air duct; 3. lower receiving plate; 31. receiving hole; 32. settling hole; 4. pushing member; 5. guide column; 6. limiting hole; 7. driving rod; 8. PCB board; 10. pin. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0027] The words expressing position and direction described in this application are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all changes are included in the scope of protection of this application.

[0028] Reference Figure 1-5 The present application provides a PCB assembly fixture, including: a lifting mechanism 1, an upper pressing plate 2 and a lower receiving plate 3.

[0029] The lifting mechanism 1 includes a mounting platform 11 and a driving rod 7, and the driving rod 7 is connected to the bottom of the mounting platform 11. The upper pressing plate 2 is connected to the bottom of the lifting mechanism 1, and the driving rod 7 is used to carry the upper pressing plate 2 to move in the height direction. The bottom of the upper pressing plate 2 is provided with a receiving groove 21 for accommodating the PCB board 8. The lower receiving plate 3 is provided with a receiving hole 31 for accommodating the pin 10. When the PCB board 8 is pressed down, the top of the pin 10 is at least partially inserted into the hole to be installed on the PCB board 8. The shape and size of the receiving groove 21 can be similar to the size of the PCB board 8, wherein the diameter of the hole on the PCB board 8 is less than or equal to the diameter of the pin 10, so that it can be fixedly connected together by interference fit when docking. Before assembly, the bottom of the pin 10 is first inserted into the inside of the receiving hole 31, with the top facing upward. Then the lifting mechanism 1 at the top carries the upper pressing plate 2 below to move downward, insert the hole on the PCB board 8 into the top of the pin 10, and complete the downward pressing through mechanized steps, without manual assembly, reducing the difficulty of assembly and improving assembly efficiency.

[0030] In one embodiment, a propulsion member 4 connected to the driving rod 7 is provided on the mounting platform 11, and the propulsion member 4 has a fixed end and a movable end, wherein the fixed end is connected to the top of the upper pressing plate 2, and the movable end is connected to the driving rod 7. The propulsion member 4 is, for example, a servo motor, and when working, the process of moving the upper pressing plate 2 downward can be decomposed into three steps, and the PCB board 8 and the top of the pin 10 are docked step by step to prevent the top of the pin 10 from being bent by a large impact force when the upper pressing plate 2 is punched downward.

[0031] In a specific embodiment, a flow channel 22 is provided at the bottom of the groove corresponding to the receiving groove 21 on the upper pressing plate 2, and the receiving groove 21 is connected to an air pump through the flow channel 22, so as to adsorb the PCB board 8 in the receiving groove 21 through negative air pressure. The negative air pressure generated inside the receiving groove 21 can stably adsorb the PCB board 8, and when the upper pressing plate 2 moves, the PCB board 8 is prevented from relatively moving in the receiving groove 21, so as to ensure that the PCB board 8 and the pin 10 below are accurately docked, and prevent the hole on the PCB board 8 and the top of the pin 10 below from offsetting during docking, so as to cause the PCB board 8 to break due to the misalignment of the pin 10 during docking.

[0032] More specifically, the upper pressing plate 2 is further provided with an air duct 23. When the top of the pin 10 is inserted into the PCB board 8, the extension direction of the air duct 23 is toward the PCB board 8, and is used to suck in the waste generated after the insertion. Since the PCB board 8 and the pin 10 are interference fit, when they are fitted, the interference fit will generate extruded waste. The waste is absorbed by the airflow generated by the air duct 23, and is uniformly processed to prevent the PCB board 8 from being contaminated.

[0033] In one embodiment, the air duct 23 is a strip-shaped air duct 23, the cross section of the strip-shaped air duct 23 is a rectangular surface, and the angle between the rectangular surface and the bottom surface of the upper pressing plate 2 is 45 degrees. According to experimental inspection, the air duct 23 at this angle can efficiently and quickly absorb waste.

[0034] In another embodiment, a guide column 5 is further included, and a limiting hole 6 for sleeve-mounting the guide column 5 is provided on the upper pressing plate 2. The limiting hole 6 is sleeved on the peripheral side of the guide column 5, and is used to limit the horizontal movement of the upper pressing plate 2 when the upper pressing plate 2 is raised or lowered. The cooperation between the guide column 5 and the limiting block can stably limit the moving upper pressing plate 2 to the same horizontal position.

[0035] The lower receiving plate 3 is also provided with a sinking hole 32, which is connected to the receiving hole 31 and is used to receive the peripheral side of the pin 10. The sinking hole 32 can stably receive the pin 10, thereby preventing the pin 10 from being deformed due to excessive stress in a part thereof during extrusion.

[0036] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the application without departing from the principles and purpose of the present application. All of these changes should fall within the scope of protection of the claims of the present application.

Claims

1. A PCB assembly jig, characterized in that: include: A lifting mechanism, the lifting mechanism comprising a mounting platform and a driving rod, the driving rod being connected to the bottom of the mounting platform; An upper pressing plate, wherein the upper pressing plate is connected to the bottom of the lifting mechanism, the driving rod is used to carry the upper pressing plate to move in the height direction, and a receiving groove for receiving a PCB board is provided at the bottom of the upper pressing plate; A lower receiving plate is provided with a receiving hole for receiving the pin. When the PCB is pressed down, the top of the pin is at least partially inserted into the hole to be installed on the PCB.

2. The PCB assembly jig according to claim 1, characterized in that: A propulsion member connected to the driving rod is arranged on the mounting platform, and the propulsion member has a fixed end and a movable end, the fixed end is connected to the top of the upper pressing plate, and the movable end is connected to the driving rod.

3. The PCB assembly jig according to claim 2, characterized in that: A flow channel is provided on the upper pressing plate at the bottom of the corresponding receiving groove, and the receiving groove is connected to an air pump through the flow channel to adsorb the PCB board in the receiving groove through negative air pressure.

4. The PCB assembly jig according to claim 3, characterized in that: The upper pressing plate is also provided with an air duct. When the top of the pin is inserted into the PCB board, the extension direction of the air duct is toward the PCB board, so as to suck in the waste generated after the insertion.

5. The PCB assembly jig according to claim 4, characterized in that: The air duct is a strip-shaped air duct, the cross section of the strip-shaped air duct is a rectangular surface, and the angle between the rectangular surface and the bottom surface of the upper pressing plate is 45 degrees.

6. The PCB assembly jig according to claim 2, characterized in that: It also includes a guide column, and the upper pressure plate is provided with a limiting hole for sleeve-mounting the guide column. The limiting hole is sleeved on the peripheral side of the guide column and is used to limit the horizontal movement of the upper pressure plate when the upper pressure plate is raised or lowered.

7. The PCB assembly jig according to claim 1, characterized in that: The lower receiving plate is also provided with a sinking hole, which is communicated with the accommodating hole and is used to accommodate the peripheral side of the pin.

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