Dispensing jig for PCB (Printed Circuit Board)

Abstract

The utility model relates to the technical field of PCB machining equipment, and discloses a dispensing jig for PCBs, the dispensing jig comprises a base and a dispensing mechanism, sliding grooves are symmetrically formed in the upper surface of the base, screw rods are rotatably mounted in the two sliding grooves, sliding seats located in the sliding grooves are mounted on the side walls of the screw rods in a threaded mode, and the sliding seats are located in the sliding grooves. A driving motor used for driving one of the screw rods to rotate is arranged on the base, the two screw rods are in transmission connection through a driving assembly, and a fixing seat is arranged on the upper surface of the sliding seat; the two supporting seats can be driven to move through positive and negative rotation of the driving motor, so that the PCBs are continuously fed, the waiting time of the dispensing mechanism is shortened, the working efficiency of the whole device is improved, the fixed seat can drive the transposition rod on the fixed seat to move in the transposition groove when moving, and the working efficiency of the whole device is improved. And the fixing seat can drive the supporting seats to slide in the direction of the transposition groove, so that mutual interference of the two supporting seats is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of PCB board processing equipment, and in particular to a dispensing fixture for PCB boards. Background Technology

[0002] Dispensing is a process, also known as gluing, coating, potting, or dripping, in which electronic adhesives, oils, or other liquids are applied, potted, or dripped onto a product to achieve functions such as adhesion, encapsulation, insulation, fixation, and surface smoothing. To facilitate dispensing, fixtures are needed to fix and position the PCB board.

[0003] For example, Chinese utility model patent CN221537172U discloses a dispensing fixture for PCB boards, relating to the field of fixture technology. The proposed solution includes a base plate, a rectangular support frame mounted on the upper end of the base plate, a drive mechanism mounted on the rectangular support frame, a support plate connected to the drive mechanism, a bracket mounted on the upper end of the base plate, and a clamping mechanism mounted on the bracket. The drive mechanism includes a strip-shaped hole at the top of the rectangular support frame. A threaded rod is rotatably mounted on the inner wall of the rectangular support frame via a bearing, and a movable rod is screwed onto the threaded rod. A first servo motor is mounted on the outer wall of the rectangular support frame. In this utility model, the coordinated use of the rectangular support frame, drive mechanism, support plate, bracket, and clamping mechanism enables assisted dispensing of adhesive onto PCB boards. The support plate can be cleaned after dispensing to prevent the adhesive from affecting subsequent dispensing. Furthermore, this fixture is easy to disassemble and assemble, improving maintenance efficiency and reducing the impact on dispensing operations.

[0004] Regarding the aforementioned technologies, the inventors believe that current PCB board dispensing fixtures, in practical use, generally involve fixing the PCB in the fixture, then applying glue to the PCB using a dispensing mechanism. After the PCB is processed, it is removed from the fixture and replaced with a new PCB. However, both the loading and unloading of PCBs require a certain amount of time, increasing the time the equipment spends waiting. The dispensing mechanism cannot perform its dispensing function while waiting for loading and unloading, resulting in low overall equipment utilization. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides a dispensing fixture for PCB boards.

[0006] The PCB board dispensing fixture provided in this application adopts the following technical solution:

[0007] A dispensing fixture for PCB boards includes a base and a dispensing mechanism;

[0008] The upper surface of the base is symmetrically provided with sliding grooves, and a screw is rotatably installed inside each of the two sliding grooves. A slide seat located inside the sliding groove is threaded onto the side wall of the screw. The base is provided with a drive motor for driving one of the screws to rotate. The two screws are connected by a drive assembly. A fixed seat is provided on the upper surface of the slide seat. A support seat is fixedly connected to one side of the upper surface of the fixed seat. A clamping assembly for clamping the PCB board is provided on the support seat.

[0009] The upper surface of the base is also symmetrically provided with shifting grooves, and the lower surface of the fixed seat is fixedly connected with a shifting rod that cooperates with the shifting grooves.

[0010] A bracket is fixedly connected to one side of the upper surface of the base, and the dispensing mechanism is mounted on the bracket and used to dispense adhesive onto the PCB board.

[0011] Preferably, the drive assembly includes two synchronous pulleys, and one end of each of the two screws is movably connected to a synchronous pulley after passing through the side wall of the base. The two synchronous pulleys are connected by a synchronous belt drive.

[0012] Preferably, the clamping assembly includes a fixing plate, a clamping plate, and a support plate. The fixing plate and the support plate are both fixedly connected to the upper surface of the support base. A lead screw is threaded through the side wall of the support plate. The clamping plate is slidably disposed on the upper surface of the support base. One end of the lead screw is rotatably connected to the side wall of the clamping plate.

[0013] Preferably, a mounting groove is provided through one side of the upper surface of the base, and the drive motor is fixedly installed inside the mounting groove.

[0014] Preferably, the upper surface of the slide is provided with a movable groove, and a support block is slidably connected inside the movable groove. The upper surface of the support block is fixedly connected to the lower surface of the fixed seat.

[0015] Preferably, the transposition groove is composed of a first horizontal plane, a first inclined plane, a second horizontal plane, a second inclined plane and a third horizontal plane from left to right. The first inclined plane extends outward from left to right, and the second inclined plane extends inward from left to right.

[0016] Preferably, the threads on the two screws are in opposite directions.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] Compared to existing technologies, this device features a motor that can rotate to move two support seats, allowing for continuous PCB board feeding. This reduces the waiting time of the dispensing mechanism, improves the overall efficiency of the device, and allows the fixed seat to move its shifting rod within the shifting groove. The fixed seat can also drive the support seat to slide along the direction of the shifting groove, thus preventing the two support seats from interfering with each other and improving the device's practicality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the application;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the application's embodiments;

[0021] Figure 3 This is a schematic diagram of the structure of the fixed base in the embodiment of the application when it moves;

[0022] Figure 4 This is a schematic diagram of the structure of the driver component in the embodiment of the application;

[0023] Figure 5 This is a schematic diagram of the clamping component in the embodiment of the application.

[0024] Explanation of reference numerals in the attached drawings: 1. Base; 2. Bracket; 3. Dispensing mechanism; 4. Support seat; 5. Fixed seat; 6. Fixed plate; 7. Clamping plate; 8. Support plate; 9. Slide groove; 10. Drive motor; 11. Slide seat; 12. Shift rod; 13. Shift groove; 14. Synchronous pulley; 15. Synchronous belt; 16. Screw; 17. Support block; 18. Movable groove; 19. Lead screw. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a dispensing fixture for PCB boards. (Refer to...) Figure 1-5A PCB board dispensing fixture includes a base 1 and a dispensing mechanism 3. The upper surface of the base 1 has symmetrically formed grooves 9. Screws 16 are rotatably mounted inside each of the two grooves 9, with opposite thread directions. A slide block 11 located inside the groove 9 is threaded onto the side wall of each screw 16. A drive motor 10 for driving one of the screws 16 is mounted on the base 1. A mounting groove is formed through one side of the upper surface of the base 1, and the drive motor 10 is fixedly mounted inside the mounting groove. The two screws 16 are connected by a drive assembly, which includes two synchronous pulleys 14. One end of each screw 16 movably passes through the side wall of the base 1 and is fixedly connected to a synchronous pulley 14. The two synchronous pulleys 14 are connected by a synchronous belt 15. A fixed seat 5 is provided on the upper surface of the slide block 11. A movable groove 18 is formed on the upper surface of the slide block 11. A support block 17 is slidably connected inside the movable groove 18. The upper surface of the support block 17 is fixedly connected to the lower surface of the fixed seat 5. A slide block 11 is fixedly connected to one side of the upper surface of the fixed seat 5. The support base 4 is equipped with a clamping assembly for holding the PCB board. The clamping assembly includes a fixing plate 6, a clamping plate 7, and a support plate 8. The fixing plate 6 and the support plate 8 are both fixedly connected to the upper surface of the support base 4. A lead screw 19 is threaded through the side wall of the support plate 8. The clamping plate 7 is slidably disposed on the upper surface of the support base 4. One end of the lead screw 19 is rotatably connected to the side wall of the clamping plate 7. The upper surface of the base 1 is also symmetrically provided with repositioning grooves 13. The lower surface of the fixing base 5 is fixedly connected to the repositioning grooves 13. The shifting rod 12 and shifting groove 13 used in conjunction consist of a first horizontal plane, a first inclined plane, a second horizontal plane, a second inclined plane and a third horizontal plane from left to right. The first inclined plane extends outward from left to right, and the second inclined plane extends inward from left to right. A bracket 2 is fixedly connected to one side of the upper surface of the base 1. The dispensing mechanism 3 is set on the bracket 2 and is used to dispense glue to the PCB board. The specific connection method and specific structural composition of the dispensing mechanism 3 are existing technologies and are widely used in society, so they will not be described in detail.

[0027] The implementation principle of a PCB board dispensing fixture according to an embodiment of this application is as follows: The electrical components described in this application are all externally connected to a power supply and control switch during use. In use, the PCB board to be processed is placed on the front support base 4, with the PCB board positioned between the fixing plate 6 and the clamping plate 7. Rotating the lead screw 19 moves the clamping plate 7, thereby clamping and fixing the PCB board. Starting the drive motor 10 rotates the front screw 16, which, through the synchronous pulley 14 and synchronous belt 15, drives the rear screw 16 to rotate synchronously. The screw 16 moves the slide block 11. Since the threads on the two screws 16 are in opposite directions, the two slide blocks 11 move in opposite directions. The front slide block 11 moves the fixing base 5 and support base 4 on it to the left. The support base 4 moves the PCB board to below the dispensing mechanism 3. Simultaneously, the rear slide block 11 moves the support base 5 on it... The seat 4 moves to the right, and then the operator can place the PCB board on the rear support seat 4. By rotating the screw 19, the clamping plate 7 can be moved to clamp and fix the PCB board. The glue dispensing mechanism 3 can dispense glue to the PCB board on the left. After the PCB board on the left is processed, the output end of the drive motor 10 rotates in the opposite direction, driving the left support seat 4 to move to the right and the right support seat 4 to move to the left, and so on in a reciprocating cycle. During this process, the forward and reverse rotation of the drive motor 10 can drive the two support seats 4 to move, so as to continuously feed the PCB board, reduce the waiting time of the glue dispensing mechanism 3, and improve the overall working efficiency of the device. When the fixed seat 5 moves, it can drive the shifting rod 12 on it to move in the shifting groove 13. The fixed seat 5 can drive the support seat 4 to slide along the direction of the shifting groove 13, thereby avoiding mutual interference between the two support seats 4 and improving the practicality of the device.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dispensing fixture for PCB boards, characterized in that: Includes a base (1) and a dispensing mechanism (3); The upper surface of the base (1) is symmetrically provided with sliding grooves (9). Screws (16) are rotatably installed inside the two sliding grooves (9). A slide seat (11) located inside the sliding groove (9) is threaded on the side wall of the screw (16). The base (1) is provided with a drive motor (10) for driving one of the screws (16) to rotate. The two screws (16) are connected by a drive assembly. A fixed seat (5) is provided on the upper surface of the slide seat (11). A support seat (4) is fixedly connected to one side of the upper surface of the fixed seat (5). A clamping assembly for clamping the PCB board is provided on the support seat (4). The upper surface of the base (1) is also symmetrically provided with a shifting groove (13), and the lower surface of the fixed seat (5) is fixedly connected with a shifting rod (12) that cooperates with the shifting groove (13). A bracket (2) is fixedly connected to one side of the upper surface of the base (1), and the dispensing mechanism (3) is set on the bracket (2) and used to dispense glue onto the PCB board.

2. The PCB board dispensing fixture according to claim 1, characterized in that: The drive assembly includes two synchronous pulleys (14). One end of each of the two screws (16) is movably inserted through the side wall of the base (1) and then fixedly connected to the synchronous pulley (14). The two synchronous pulleys (14) are connected by a synchronous belt (15).

3. The PCB board dispensing fixture according to claim 1, characterized in that: The clamping assembly includes a fixing plate (6), a clamping plate (7), and a support plate (8). The fixing plate (6) and the support plate (8) are both fixedly connected to the upper surface of the support base (4). A lead screw (19) is threaded through the side wall of the support plate (8). The clamping plate (7) is slidably disposed on the upper surface of the support base (4). One end of the lead screw (19) is rotatably connected to the side wall of the clamping plate (7).

4. The PCB board dispensing fixture according to claim 1, characterized in that: A mounting groove is provided through one side of the upper surface of the base (1), and the drive motor (10) is fixedly installed inside the mounting groove.

5. The PCB board dispensing fixture according to claim 1, characterized in that: The upper surface of the slide (11) is provided with a movable groove (18), and a support block (17) is slidably connected inside the movable groove (18). The upper surface of the support block (17) is fixedly connected to the lower surface of the fixed seat (5).

6. The PCB board dispensing fixture according to claim 1, characterized in that: The transposition groove (13) consists of a first horizontal plane, a first inclined plane, a second horizontal plane, a second inclined plane and a third horizontal plane from left to right. The first inclined plane extends outward from left to right, and the second inclined plane extends inward from left to right.

7. A dispensing fixture for PCB boards according to claim 1, characterized in that: The threads on the two screws (16) are in opposite directions.

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