PCB press fitting jig

Abstract

The utility model discloses a PCB press fitting jig which comprises a base, the top of the base is fixedly connected with a limiting seat, the inner wall of the limiting seat is slidably connected with a bearing plate, the top of the bearing plate is provided with through grooves which are evenly distributed, the inner walls of the through grooves are fixedly connected with heat conduction rods which are arranged at equal intervals, and the heat conduction rods are fixedly connected with the limiting seat. Through holes which are evenly distributed are formed in the top of the base, and the bottom ends of the heat conduction rods penetrate through the through holes and extend into the base. According to the utility model, the plurality of groups of heat conducting rods on the bearing plate are in contact with the PCB to be pressed, when the press-fitting equipment presses the PCB downwards, the heat conducting rods move along with the PCB to be in contact with the cooling liquid so as to keep low temperature, damage to PCB elements caused by too high stamping temperature is prevented, and meanwhile, the pressure borne by the PCB is monitored through the monitoring mechanism; and when the numerical value exceeds the set value, an alarm can be automatically given, so that the press-fitting equipment or the press-fitting jig can be conveniently and timely maintained, and the quality reduction and even damage of the subsequent press-fitting PCB are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board production, and more specifically to a PCB board press-fitting fixture. Background Art

[0002] PCB boards, also known as printed circuit boards, can be divided into single-sided, double-sided and multi-layer boards according to the number of layers. When double-sided boards and multi-layer boards are pressed, they need to be placed in the corresponding jig for assembly. The role of the jig is to serve as a tool to assist in controlling the position or movement of the circuit board's pressing device, so that the jig remains stable when being pressed.

[0003] During the PCB board press-fitting process, the press-fitting equipment will stamp the PCB board. Exposure to high temperature may cause damage to the circuit components of the PCB board. At the same time, the pressure needs to be kept within the set range during the press-fitting process. If the pressure is too small, the press-fitting will fail, and if the pressure is too large, the PCB board may be damaged. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a PCB board press-fitting fixture.

[0005] In order to solve the above-mentioned background technical problems, the utility model adopts the following technical solutions.

[0006] A PCB board pressing fixture comprises a base, the top of the base is fixedly connected to a limit seat, the inner wall of the limit seat is slidably connected to a bearing plate, the top of the bearing plate is provided with evenly distributed through grooves, the inner wall of the through grooves is fixedly connected to heat-conducting rods arranged at equal distances, the top of the base is provided with evenly distributed through holes, the bottom ends of the heat-conducting rods pass through the through holes and extend to the inside of the base, a refrigerator is fixedly installed on the front side of the base, the refrigerator is connected to the inside of the base, the inside of the base is filled with coolant, evenly distributed spring dampers are fixedly installed on the top of the base, the top ends of the spring dampers are fixedly connected to the bottom of the bearing plate, and a monitoring mechanism is arranged on the top of the base.

[0007] As a further description of the above technical solution: the monitoring mechanism includes a mounting tube, the mounting tube is fixedly connected to the top of the base, a pressure sensor is fixedly installed on the inner wall of the mounting tube, a single-chip microcomputer is installed inside the mounting tube, the pressure sensor is connected to the single-chip microcomputer signal, an active groove is opened on the right side of the limit seat, a synchronization plate is fixedly connected to the right side of the bearing plate, the right side of the synchronization plate passes through the active groove and extends to the outside of the limit seat, the bottom of the synchronization plate is fixedly connected to a synchronization seat, the bottom end of the synchronization seat passes through and extends to the inside of the mounting tube, a pressure spring is arranged inside the mounting tube, the top end of the pressure spring is in contact with the synchronization seat, and the bottom end of the pressure spring is in contact with the pressure sensor.

[0008] As a further description of the above technical solution: a prompter is fixedly installed on the right side of the base, and the prompter is connected to the single-chip microcomputer signal.

[0009] As a further description of the above technical solution: the top and the bottom of the synchronization plate are fixedly connected with a baffle, and the baffle is located on the right side of the movable groove.

[0010] As a further description of the above technical solution: guide rollers are rotatably connected to the left and right sides of the bearing plate, and the guide rollers are in contact with the inner wall of the limiting seat.

[0011] As a further description of the above technical solution: the top of the base is fixedly connected with evenly distributed guide seats, the guide seats are located at the top of the through holes, and the heat-conducting rods are located inside the guide seats.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] In the utility model, through grooves are provided on the carrier plate and multiple groups of heat-conducting rods are fixedly connected to contact the PCB board to be pressed. When the pressing device presses down the PCB board, the heat-conducting rods move accordingly to contact the coolant to maintain the low temperature, thereby preventing the PCB board components from being damaged by excessively high stamping temperature. At the same time, the pressure on the PCB board is monitored by a monitoring mechanism, and an alarm is automatically triggered when the value exceeds a set value, so as to facilitate timely maintenance of the pressing device or the pressing fixture, thereby avoiding a reduction in quality or even damage to the subsequent pressed PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of the monitoring mechanism of the utility model;

[0017] Figure 4 It is a schematic diagram of the principle of the utility model.

[0018] Description of the numbers in the figure:

[0019] 1. Base; 2. Limit seat; 3. Loading plate; 4. Through slot; 5. Heat conducting rod; 6. Through hole; 7. Refrigerator; 8. Spring damper; 9. Monitoring mechanism; 901. Mounting tube; 902. Pressure sensor; 903. Single chip microcomputer; 904. Movable slot; 905. Synchronous plate; 906. Synchronous seat; 907. Pressure spring; 10. Prompt; 11. Baffle; 12. Guide roller; 13. Guide seat. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0021] See also Figures 1 to 4 In the utility model, a PCB board pressing fixture includes a base 1, a limited seat 2 is fixedly connected to the top of the base 1, a bearing plate 3 is slidably connected to the inner wall of the limited seat 2, a uniformly distributed through groove 4 is opened on the top of the bearing plate 3, and a heat-conducting rod 5 arranged at equal distances is fixedly connected to the inner wall of the through groove 4, a uniformly distributed through hole 6 is opened on the top of the base 1, and the bottom end of the heat-conducting rod 5 passes through the through hole 6 and extends to the inside of the base 1, a refrigerator 7 is fixedly installed on the front of the base 1, and the refrigerator 7 is connected to the inside of the base 1, and the inside of the base 1 is filled with coolant, and a uniformly distributed spring damper 8 is fixedly installed on the top of the base 1, and the top of the spring damper 8 is fixedly connected to the bottom of the bearing plate 3, and a monitoring mechanism 9 is arranged on the top of the base 1, and the monitoring mechanism 9 includes a mounting cylinder 901, and the mounting cylinder 901 is fixedly connected to the base 1. At the top, a pressure sensor 902 is fixedly installed on the inner wall of the mounting cylinder 901, a single-chip microcomputer 903 is installed inside the mounting cylinder 901, and the pressure sensor 902 is connected to the single-chip microcomputer 903 by signal. A movable groove 904 is opened on the right side of the limit seat 2, and a synchronization plate 905 is fixedly connected to the right side of the bearing plate 3. The right side of the synchronization plate 905 passes through the movable groove 904 and extends to the outside of the limit seat 2. A synchronization seat 906 is fixedly connected to the bottom of the synchronization plate 905, and the bottom end of the synchronization seat 906 passes through and extends to the inside of the mounting cylinder 901. A pressure spring 907 is arranged inside the mounting cylinder 901, and the top end of the pressure spring 907 contacts with the synchronization seat 906, and the bottom end of the pressure spring 907 contacts with the pressure sensor 902. A prompter 10 is fixedly installed on the right side of the base 1, and the prompter 10 is connected to the single-chip microcomputer 903 by signal.

[0022] When the PCB board is press-fitted, the user places the PCB board to be packaged on the top of the carrier plate 3, and then covers the top of the PCB board with the cover plate of the press-fitting device. At this time, the bottom of the PCB board contacts the multiple sets of heat-conducting rods 5. When the press-fitting device presses the PCB board downward, the carrier plate 3 moves downward accordingly. The spring damper 8 acts, and the heat-conducting rods 5 enter the base 1 along the through hole 6 and contact the coolant with a lower temperature, so that the heat of the PCB board is introduced into the base 1 to prevent the PCB board from being overheated during press-fitting. The refrigerator 7 will continuously cool the coolant in the base 1 to facilitate continuous press-fitting of the PCB board. When the carrier plate 3 moves downward, the synchronization plate 905 will also As it moves downward, the synchronization plate 905 drives the synchronization seat 906 to move downward so that the synchronization seat 906 presses the pressure spring 907. The pressure spring 907 contracts under the force and generates an opposite force, which changes the value of the pressure sensor 902. The pressure sensor 902 transmits the signal to the single-chip microcomputer 903. The single-chip microcomputer 903 compares the value. Under normal conditions, the pressure value is constant or has a slight deviation. When the value exceeds the set value, the single-chip microcomputer 903 will control the prompter 10 to power on. After the prompter 10 is powered on, a prompt sound is generated to prompt the user, so as to facilitate timely maintenance of the pressing equipment or pressing fixture to avoid subsequent press-fitted PCB board quality reduction or even damage.

[0023] In the utility model, through slots 4 are provided on the carrier plate 3 and multiple groups of heat-conducting rods 5 are fixedly connected to contact the PCB board to be pressed. When the pressing device presses down the PCB board, the heat-conducting rods 5 move accordingly to contact the coolant to maintain the low temperature, thereby preventing the PCB board components from being damaged by excessive stamping temperature. At the same time, the pressure on the PCB board is monitored by the monitoring mechanism 9. When the value exceeds the set value, an alarm is automatically sounded, so as to timely inspect and repair the pressing device or the pressing fixture, thereby avoiding the quality reduction or even damage of the subsequent pressed PCB board.

[0024] See also Figure 1 and 3 , wherein: the top and the bottom of the synchronization plate 905 are fixedly connected with a baffle 11, and the baffle 11 is located on the right side of the movable groove 904.

[0025] In the present invention, when the synchronous plate 905 moves, the baffle 11 will also move accordingly, and the baffle 11 always blocks the movable groove 904 to prevent the air circulation between the inside and outside of the limiting seat 2 from affecting the cooling effect.

[0026] See also Figure 2 , wherein: the left and right sides of the bearing plate 3 are rotatably connected with guide rollers 12 , and the guide rollers 12 are in contact with the inner wall of the limiting seat 2 .

[0027] In the utility model, when the bearing plate 3 moves, the guide roller 12 contacts and rolls with the inner wall of the limiting seat 2 , thereby playing a certain stabilizing role on the bearing plate 3 .

[0028] See also Figure 2 , wherein: the top of the base 1 is fixedly connected with evenly distributed guide seats 13 , the guide seats 13 are located at the top of the through holes 6 , and the heat conducting rod 5 is located inside the guide seats 13 .

[0029] In the present invention, the setting of the guide seat 13 can limit and stabilize the heat-conducting rod 5, thereby preventing the heat-conducting rod 5 from becoming loose and unstable after the bearing plate 3 is pressed by the press-fitting equipment.

[0030] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A PCB press-fitting fixture, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a limit seat (2), the inner wall of the limit seat (2) is slidably connected to a bearing plate (3), the top of the bearing plate (3) is provided with evenly distributed through grooves (4), the inner wall of the through grooves (4) is fixedly connected to heat-conducting rods (5) arranged at equal distances, the top of the base (1) is provided with evenly distributed through holes (6), the bottom ends of the heat-conducting rods (5) pass through the through holes (6) and extend to the inside of the base (1), a refrigerator (7) is fixedly installed on the front of the base (1), the refrigerator (7) is connected to the inside of the base (1), the inside of the base (1) is filled with cooling liquid, the top of the base (1) is fixedly installed with evenly distributed spring dampers (8), the top ends of the spring dampers (8) are fixedly connected to the bottom of the bearing plate (3), and a monitoring mechanism (9) is arranged on the top of the base (1).

2. The PCB press-fitting fixture according to claim 1, characterized in that: The monitoring mechanism (9) comprises a mounting tube (901), the mounting tube (901) is fixedly connected to the top of the base (1), a pressure sensor (902) is fixedly installed on the inner wall of the mounting tube (901), a single chip microcomputer (903) is installed inside the mounting tube (901), the pressure sensor (902) is signal-connected to the single chip microcomputer (903), a movable groove (904) is provided on the right side of the limit seat (2), a synchronization plate (905) is fixedly connected to the right side of the bearing plate (3), and the pressure sensor (902) is signal-connected to the single chip microcomputer (903). The right side of the synchronization plate (905) passes through the movable groove (904) and extends to the outside of the limit seat (2); the bottom of the synchronization plate (905) is fixedly connected to a synchronization seat (906); the bottom end of the synchronization seat (906) passes through and extends to the inside of the mounting tube (901); a pressure spring (907) is arranged inside the mounting tube (901); the top end of the pressure spring (907) contacts the synchronization seat (906); and the bottom end of the pressure spring (907) contacts the pressure sensor (902).

3. The PCB press-fitting jig according to claim 2, characterized in that: A prompter (10) is fixedly mounted on the right side of the base (1), and the prompter (10) is signal-connected to the single-chip computer (903).

4. The PCB press-fitting jig according to claim 2, characterized in that: The top and bottom of the synchronization plate (905) are both fixedly connected with a baffle (11), and the baffle (11) is located on the right side of the movable groove (904).

5. The PCB press-fitting jig according to claim 1, characterized in that: The left and right sides of the bearing plate (3) are both rotatably connected with guide rollers (12), and the guide rollers (12) are in contact with the inner wall of the limiting seat (2).

6. The PCB press-fitting jig according to claim 1, characterized in that: The top of the base (1) is fixedly connected with evenly distributed guide seats (13), the guide seats (13) are located at the top of the through holes (6), and the heat conducting rods (5) are located inside the guide seats (13).

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