PCB fixing jig

Abstract

The utility model provides a PCB (Printed Circuit Board) fixing jig, which solves the technical problem that the fixing requirement of a circular PCB cannot be met in the prior art. A positioning column is connected to the front face of a fixed bottom plate, long-strip-shaped guide through grooves are formed in the fixed bottom plate, the extension direction of the long-strip-shaped guide through grooves right faces the positioning column, and the long-strip-shaped guide through grooves are distributed in an annular array mode with the positioning column as the center; each long-strip-shaped guide through groove is correspondingly provided with a clamp device, each clamp device is provided with a linear guide driving device, the linear guide driving devices are installed on the back face of the fixed bottom plate, and telescopic rods of the linear guide driving devices are parallel to the long-strip-shaped guide through grooves. One end of the connecting base is connected with a telescopic rod of the linear guide driving device, the other end of the connecting base upwards penetrates through the long-strip-shaped guide through groove to be connected with the supporting plate, the supporting plate and the clamping plate are arranged on the front face of the fixed bottom plate and connected through a spring, and the clamping plate faces the positioning column. The PCB jig can be widely applied to the technical field of PCB jigs.

Description

Technical Field

[0001] The present application relates to the technical field of PCB fixtures, and in particular to a PCB fixing fixture. Background Art

[0002] PCBs, also known as printed circuit boards, are important electronic components that support electronic components and act as electrical connections. With the rapid development of highly integrated circuits, PCBs are becoming increasingly smaller, thinner, and more precise. PCB fixtures are used to secure PCBs, facilitating operations like soldering and drilling. They require excellent stability after securing the PCB.

[0003] Utility model publication number CN204817096U discloses a PCB fixture comprising a fixed base plate, a transverse bar disposed in the middle of the fixed base plate, multiple guide rods and spring devices spaced evenly apart on either side of the transverse bar, a spring pressure block disposed at one end of the spring, and a limit slot disposed on one side of the spring pressure block. By providing a spring and spring pressure block structure, this utility model can control the movement of the bar and clamp PCBs of varying sizes, thereby expanding the applicability of the PCB fixture. It offers excellent fixing effects, a simple structure, convenient practicality, and time and cost savings. However, this utility model is not suitable for securing circular PCBs, a technical issue that requires urgent resolution. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies of the above-mentioned technology and provide a PCB fixing fixture to meet the fixing requirements of circular PCB boards.

[0005] To this end, the utility model provides a PCB fixing jig, which is provided with a fixed base plate, a positioning column is connected to the front side of the fixed base plate, and the fixed base plate is provided with an elongated guide slot, the extension direction of the elongated guide slot is opposite to the positioning column, and the elongated guide slots are distributed in a circular array with the positioning column as the center; the PCB fixing jig is also provided with a clamping device, a clamping device is provided corresponding to each elongated guide slot, the clamping device is provided with a linear guide drive device, a connecting seat, a support plate, and a splint, the linear guide drive device is installed on the back side of the fixed base plate, and the telescopic rod of the linear guide drive device is arranged parallel to the elongated guide slot, one end of the connecting seat is connected to the telescopic rod of the linear guide drive device, and the other end of the connecting seat passes upward through the elongated guide slot and is connected to the support plate, the support plate and the splint are arranged on the front side of the fixed base plate, and the support plate and the splint are connected by a spring, and the splint faces the positioning column.

[0006] Preferably, the side surface of the splint is an arc-shaped structure, and the arc-shaped structure faces the positioning column.

[0007] Preferably, the splint is connected to the side of the arc-shaped structure and is provided with a buffer pad.

[0008] Preferably, the cross section of the positioning post is polygonal.

[0009] Preferably, the linear guide drive device is an oil cylinder or a pneumatic cylinder.

[0010] Preferably, the PCB fixing fixture is further provided with a touch sensor, which is arranged between the clamping plate and the support plate, and the touch sensor is spaced apart from the clamping plate, and the touch sensor is connected to the support plate.

[0011] Preferably, the PCB fixing fixture is further provided with an intelligent control system, and the intelligent control system is provided with an intelligent control device, and the intelligent control device is electrically connected to the touch sensor and the linear guide drive device through control circuits respectively.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a PCB fixing fixture, which is provided with a fixed base plate and a clamp device, the front surface of the fixed base plate is connected with a positioning column, the fixed base plate is provided with a long strip guide slot, the extension direction of the long strip guide slot is facing the positioning column, and the long strip guide slots are distributed in a circular array with the positioning column as the center; a clamp device is arranged corresponding to each long strip guide slot, the clamp device is provided with a linear guide drive device, a connecting seat, a support plate, and a splint, the linear guide drive device is installed on the back side of the fixed base plate, and the telescopic rod of the linear guide drive device is arranged parallel to the long strip guide slot, one end of the connecting seat is connected to the telescopic rod of the linear guide drive device, and the other end of the connecting seat passes upward through the long strip guide slot and is connected to the support plate, the support plate and the splint are arranged on the front side of the fixed base plate, and the support plate and the splint are connected by a spring, and the splint faces the positioning column.

[0013] When in use, first install the circular PCB board on the positioning column through its own positioning hole to complete the placement of the circular PCB board on the fixed base plate; then start all the linear guide drive devices, and the telescopic rod of the linear guide drive device extends, driving the support plate and the clamping plate to move along the long guide groove toward the positioning column through the connecting seat until the clamping plate rests on the edge of the circular PCB board, and the spring plays a role of elastic compression protection. At this time, the linear guide drive device is closed, and the clamping plates of all the clamping devices rest on the edge of the circular PCB board, completing the fixation of the circular PCB board and meeting the fixation requirements of the circular PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 It is a schematic structural diagram of a top view of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a bottom view of the present utility model;

[0017] Figure 3 for Figure 1 A schematic structural diagram of an enlarged view of the AA cross-sectional view shown;

[0018] Figure 4 for Figure 1 A schematic structural diagram of the enlarged view of part A shown;

[0019] Figure 5 for Figure 3 A schematic structural diagram of an enlarged view of part B shown;

[0020] Figure 6 A schematic structural diagram of a cross-sectional view of a PCB board;

[0021] Figure 7 A schematic structural diagram of a cross-sectional view of another PCB board;

[0022] Figure 8 A schematic diagram of the structure of the connection relationship between the touch sensor and other components;

[0023] Figure 9 This is the working principle diagram of the intelligent control system of this utility model.

[0024] Markings in the figure: 1. Fixed base plate, 2. Positioning column, 3. Long guide groove, 4. Arc structure, 5. Linear guide drive device, 6. Connecting seat, 7. Support plate, 8. Clamp, 9. Spring, 10. Buffer pad, 11. Touch sensor, 12. Intelligent control device, 13. Round PCB board, 14. Positioning hole. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining this application and are not intended to limit this application. The methods used in this utility model are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0026] Example 1

[0027] Depend on Figure 1-Figure 5As shown, the utility model provides a PCB fixing fixture, which is provided with a fixed base plate 1, and a positioning column 2 is connected to the front of the fixed base plate 1. The fixed base plate 1 is provided with an elongated guide slot 3, and the extension direction of the elongated guide slot 3 is opposite to the positioning column 2. The elongated guide slots 3 are distributed in a circular array with the positioning column 2 as the center; the PCB fixing fixture is also provided with a clamping device, and a clamping device is provided corresponding to each elongated guide slot 3. The clamping device is provided with a linear guide drive device 5, a connecting seat 6, a support plate 7, and a splint 8. The linear guide drive device 5 is installed on the back of the fixed base plate 1, and the telescopic rod of the linear guide drive device 5 is arranged parallel to the elongated guide slot 3. One end of the connecting seat 6 is connected to the telescopic rod of the linear guide drive device 5, and the other end of the connecting seat 6 passes upward through the elongated guide slot 3 and is connected to the support plate 7. The support plate 7 and the splint 8 are arranged on the front of the fixed base plate 1, and the support plate 7 and the splint 8 are connected by a spring 9, and the splint 8 faces the positioning column 2.

[0028] When using, first Figure 6 or Figure 7 The circular PCB board 13 is mounted on the Figure 1 The circular PCB board 13 is placed on the fixed base plate 1 on the positioning column 2 shown in the figure; then all the linear guide drive devices 5 are started, and the telescopic rods of the linear guide drive devices 5 are extended, driving the support plate 7 and the clamping plate 8 to move along the long guide groove 3 toward the positioning column 2 through the connecting seat 6 until the clamping plate 8 rests on the edge of the circular PCB board 13, and the spring 9 plays a role of elastic compression protection. At this time, the linear guide drive device 5 is closed, and the clamping plates 8 of all the clamping devices rest on the edge of the circular PCB board 13, completing the fixation of the circular PCB board 13 and meeting the fixation requirements of the circular PCB board 13.

[0029] In order to increase the contact area of ​​the clamping plate 8 against the edge of the circular PCB board 13 and make the whole fixing process more stable, Figure 4 As shown, the side of the clamping plate 8 facing the positioning column 2 is preferably an arc-shaped structure 4.

[0030] In order to prevent the edge of the circular PCB board 13 from being squeezed and damaged, the entire process of the clamping plate 8 resting on the circular PCB board 13 is made more stable. Figure 4 As shown, the clamping plate 8 is located on the side of the arc structure 4 and is preferably connected to a buffer pad 10. The buffer pad 10 is an existing device and its material can be an elastic material such as rubber.

[0031] In order to facilitate positioning and prevent the circular PCB board 13 placed on the bottom plate from rotating, and to facilitate welding, drilling and other operations after fixing, the Figure 1As shown, the cross section of the positioning post 2 is preferably polygonal. Accordingly, the shape and size of the positioning hole 14 of the circular PCB board 13 match the positioning post 2. Figure 6 or Figure 7 shown.

[0032] Depend on Figure 2 、 Figure 3 As shown, the linear guide drive device 5 of the present invention is preferably an oil cylinder or a pneumatic cylinder, and can also be an electric cylinder.

[0033] Example 2

[0034] Based on the technical solution of the above embodiment 1, Figure 8 As shown, the PCB fixing fixture of the present invention is further provided with a touch sensor 11 , which is arranged between the clamping plate 8 and the support plate 7 , and the touch sensor 11 is spaced apart from the clamping plate 8 , and the touch sensor 11 is connected to the support plate 7 .

[0035] Depend on Figure 9 As shown, the PCB fixture is preferably also provided with an intelligent control system, which includes an intelligent control device 12, which can be a PLC. The intelligent control device 12 is electrically connected to the touch sensor 11 and the linear guide drive device 5 through control circuits. When in use, the telescopic rod of the linear guide drive device 5 extends, driving the support plate 7 and the clamping plate 8 to move along the long guide groove 3 toward the positioning column 2 through the connecting seat 6, until the clamping plate 8 abuts against the edge of the circular PCB board 13. The spring 9 is gradually compressed under the push of the clamping plate 8. When the clamping plate 8 moves backward and touches the touch sensor 11, the touch sensor 11 generates a sensing signal and transmits the sensing signal to the intelligent control device 12 through the control circuit. After receiving the sensing signal, the intelligent control device 12 sends a command to the linear guide drive device 5, and the linear guide drive device 5 stops working after receiving the command. The working principle of all linear guide drive devices 5 is the same and will not be repeated here. Finally, the clamps 8 of all the clamp devices abut against the edges of the circular PCB board 13, completing the fixation of the circular PCB board 13, meeting the fixation requirements of the circular PCB board 13, and realizing automatic control of the fixation of the circular PCB board 13.

[0036] It should be noted that:

[0037] (1) In Example 1, Figure 6 、 Figure 7 As shown, the positioning hole 14 of the circular PCB board 13 is set at the center of the bottom surface of the circular PCB board 13. The difference between the two is that, Figure 6 The positioning hole 14 is a blind hole. Figure 7 The positioning hole 14 is a through hole.

[0038] (2) In Example 2, when the linear guide drive device 5 is a hydraulic cylinder or a pneumatic cylinder, the solenoid valve of the hydraulic cylinder or pneumatic cylinder receives a command from the intelligent control device 12 and performs a corresponding action. When the linear guide drive device 5 is an electric cylinder, the motor of the electric cylinder receives a command from the intelligent control device 12 and performs a corresponding action.

[0039] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A PCB fixing jig, comprising a fixed base plate (1), the fixed base plate (1) being provided with a plurality of long strip guide slots (3), the PCB fixing jig further comprising a clamping device, wherein a clamping device is provided corresponding to each long strip guide slot (3), each clamping device comprising a linear guide drive device (5), a connecting seat (6), a support plate (7), and a clamping plate (8), wherein the linear guide drive device (5) is mounted on the back of the fixed base plate (1), one end of the connecting seat (6) is connected to the telescopic rod of the linear guide drive device (5), and the other end of the connecting seat (6) passes upward through the long strip guide slot (3) and is connected to the support plate (7), the support plate (7) and the clamping plate (8) are provided on the front of the fixed base plate (1), and the support plate (7) and the clamping plate (8) are connected via a spring (9), characterized in that: The front surface of the fixed base plate (1) is connected to a positioning column (2), the extension direction of the long strip guide slot (3) is directly opposite to the positioning column (2), and the long strip guide slot (3) is distributed in a circular array with the positioning column (2) as the center; the telescopic rod of the linear guide drive device (5) is arranged parallel to the long strip guide slot (3), and the clamping plate (8) faces the positioning column (2); The PCB fixing fixture is further provided with a touch sensor (11), the touch sensor (11) being arranged between the clamping plate (8) and the support plate (7), and the touch sensor (11) and the clamping plate (8) being spaced apart, and the touch sensor (11) being connected to the support plate (7); The PCB fixing fixture is further provided with an intelligent control system, wherein the intelligent control system is provided with an intelligent control device (12), wherein the intelligent control device (12) is a PLC, and the intelligent control device (12) is electrically connected to the touch sensor (11) and the linear guide drive device (5) through control circuits.

2. A PCB fixing jig according to claim 1, characterized in that: The side surface of the splint (8) is an arc-shaped structure (4), and the arc-shaped structure (4) faces the positioning column (2).

3. A PCB fixing jig according to claim 2, characterized in that: The splint (8) is located on the side of the arc-shaped structure (4) and is connected to a buffer pad (10).

4. The PCB fixing jig according to claim 1, characterized in that: The cross section of the positioning column (2) is polygonal.

5. The PCB fixing jig according to claim 1, characterized in that: The linear guide drive device (5) is an electric cylinder, an oil cylinder or a pneumatic cylinder.

Images