Compressing and fixing device of circuit board

Abstract

The utility model provides a compressing and fixing device for a circuit board, which comprises a base and an electric hot press, supporting seats are fixedly connected to the periphery of the top of the base, and a fixing seat is fixedly connected among the tops of the four supporting seats. Compared with the prior art, the belt conveying device has the advantages that a clockwise rotation switch at the output end of a motor in the belt conveying assembly is started, the belt transmission connection relation is utilized, four connecting shafts and four transmission shafts rotate clockwise at the same time, and the four connecting shafts drive four transmission wheels to rotate clockwise at the same time; and then the four toothed plates can be pushed to move towards the interior of the positioning frame at the same time, the distance between rubber rollers in the four positioning clamping rollers can be shortened, and therefore the multiple layers of circuit boards stacked on the top of the containing table can be calibrated and stacked from the four sides at the same time, and a single motor drives a clamp to calibrate and stack the four sides of the stacked circuit boards at the same time. And the hot-pressing processing efficiency and processing quality of the circuit board are effectively improved.

Description

Technical Field

[0001] The utility model relates to a pressing and fixing device for a circuit board, belonging to the field of circuit board processing equipment. Background Art

[0002] In the manufacturing process of circuit boards, hot pressing is an indispensable process. Circuit board molding requires placing the module circuit board in a hot press. Under high temperature and high pressure environment, pressure is used to firmly connect the circuit board and the copper busbar.

[0003] In the prior art, after square circuit layer boards are stacked up and down under a hot press, the stacked layer boards need to be calibrated by a positioning device to ensure that they are stacked in the center. However, during the process of calibrating and fixing the stacked layer boards in the center, the existing fixing device can only calibrate and center from the front and back sides or the left and right sides of the circuit board at the same time. Repeated calibration and fixing are required before hot pressing operations can be performed, which reduces the efficiency of hot pressing processing of the circuit boards.

[0004] In summary, the utility model provides a pressing and fixing device for a circuit board to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a clamping and fixing device for a circuit board, so as to solve the problem in the above background technology that the centering calibration speed of the circuit layers after being stacked up and down is slow, thereby reducing the hot pressing processing efficiency of the circuit board.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a clamping and fixing device for a circuit board, comprising a base and an electric hot press, wherein the top of the base is fixedly connected with a support seat on all sides, a fixed seat is fixedly connected between the tops of the four support seats, a unloading window is opened between the top and the bottom of the fixed seat, a positioning frame is fixedly connected to the top of the fixed seat and directly above the unloading window, the top of the fixed seat is fixedly connected with a connecting seat on all sides, a load-bearing plate is fixedly connected between the tops of the four connecting seats, the electric hot press is fixedly connected to the bottom of the load-bearing plate and directly above the positioning frame, positioning rollers are penetrated on all four sides of the positioning frame, a belt transmission assembly is penetrated between the top and the bottom of the fixed seat and below the four positioning rollers, electric lifting rods are fixedly connected to the top of the base and directly below the unloading window, the output ends of the four electric lifting rods extend to the inside of the positioning frame through the unloading window, and a placing table is fixedly connected between the output ends of the four electric lifting rods and below the four positioning rollers.

[0007] Furthermore, the positioning clamping roller includes a tooth plate, which runs through one side of the positioning frame and one side of the inner wall. One side of the tooth plate is fixedly connected to a mounting plate located inside the positioning frame. One side of the mounting plate is fixedly connected to two fixed blocks. The bottoms of the two fixed blocks are rotatably connected to rubber rollers via a rotating shaft.

[0008] Furthermore, the top and bottom of the tooth plate are fixedly connected with sliding bars, the tooth plate is slidably connected to the positioning frame via the sliding bars, and the positioning frame is provided with a sliding groove that cooperates with the sliding connection of the tooth plate.

[0009] Furthermore, the belt transmission assembly includes four transmission shafts and four connecting shafts. The four transmission shafts are rotatably connected to the four sides of the top of the fixed seat respectively. The axial surfaces of the four transmission shafts are sleeved with a first double-groove pulley. The four connecting shafts are fixedly connected to the four sides of the top of the fixed seat respectively, and each connecting shaft is adjacent to the tooth plate inside each positioning clamping roller. The axial surface of each connecting shaft is sleeved with a second double-groove pulley, and the wheel surfaces of every two adjacent first double-groove pulleys and second double-groove pulleys are connected by belt transmission, and the axial surface of each connecting shaft and the teeth of any tooth plate are sleeved with a transmission wheel.

[0010] Further, the tooth plate is meshed with the transmission wheel, the transmission wheel is fixedly connected to the connecting shaft, the second double-groove pulley is fixedly connected to the connecting shaft, and the transmission shaft is fixedly connected to the first double-groove pulley.

[0011] Furthermore, a chassis is fixedly connected to the bottom of the fixing seat and is located directly below a connecting axis thereof, and a motor is fixedly connected to the interior of the chassis.

[0012] Furthermore, one end of a connecting shaft passes through the fixing seat and the chassis in sequence and extends to the inside of the chassis, one end of a connecting shaft is fixedly connected to the output end of the motor, and the connecting shaft is rotatably connected to the chassis.

[0013] Beneficial effects of the utility model:

[0014] By starting the clockwise rotation switch at the motor output end inside the belt transmission assembly and utilizing the belt transmission connection relationship, the four connecting shafts and the four transmission shafts rotate clockwise at the same time, and the four connecting shafts drive the four transmission wheels to rotate clockwise at the same time, and then the four tooth plates can be pushed toward the inside of the positioning frame at the same time, and the distance between the rubber rollers inside the four positioning clamping rollers can be narrowed, so that the multi-layer circuit boards stacked on the top of the placement table can be calibrated and stacked from four sides at the same time, and the four sides of the stacked circuit boards can be calibrated and stacked at the same time by using a single motor to drive the fixture, which effectively improves the hot pressing processing efficiency and processing quality of the circuit boards.

[0015] After stacking is completed, start the electric hot press machine to perform hot pressing on the circuit board below, and then start the retraction switch at the output end of the electric lifting rod, so that the placement table can be driven to move downward from the inside of the unloading window and move to the bottom of the fixed seat, so that the circuit board that has been hot pressed can be removed, improving the convenience of hot pressing and unloading of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic structural perspective diagram of a circuit board pressing and fixing device of the utility model;

[0018] Figure 2 This is a schematic front view of the structure of a clamping and fixing device for a circuit board of the utility model;

[0019] Figure 3 This is a schematic main cross-sectional view of the structure of a clamping and fixing device for a circuit board of the utility model;

[0020] Figure 4 A schematic top cross-sectional view of the structure of a clamping and fixing device for a circuit board of the utility model;

[0021] Figure 5 for Figure 3 The structure of the belt transmission assembly is schematically shown in a top cross-sectional view.

[0022] In the figure: 1. base; 2. electric heat press; 3. support seat; 4. fixed seat; 5. unloading window; 6. positioning frame; 7. positioning clamping roller; 8. belt transmission assembly; 9. connecting seat; 10. load-bearing plate; 11. electric lifting rod; 12. placing table; 71. tooth plate; 72. mounting plate; 73. fixing block; 74. rubber roller; 81. transmission shaft; 82. first double-groove pulley; 83. connecting shaft; 84. transmission wheel; 85. second double-groove pulley; 86. chassis; 87. motor. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-5The utility model provides a technical solution: a clamping and fixing device for a circuit board, comprising a base 1 and an electric hot press 2. The top of the base 1 is fixedly connected with a support seat 3 on all sides. The electric hot press 2 is a hot pressing device driven by electricity. It is mainly used to heat and pressurize materials to process them into workpieces of required shapes. The stacked hot pressing plates below can be hot-pressed and spliced ​​by the electric hot press 2. A fixed seat 4 is fixedly connected between the tops of the four support seats 3. A discharge window 5 is provided between the top and bottom of the fixed seat 4. A positioning frame 6 is fixedly connected to the top of the fixed seat 4 and directly above the discharge window 5. The top of the fixed seat 4 is fixedly connected with a connecting seat 9 on all sides. The tops of the four connecting seats 9 are fixedly connected to each other. A load-bearing plate 10 is fixedly connected between the two, the electric hot press 2 is fixedly connected to the bottom of the load-bearing plate 10 and is located directly above the positioning frame 6, positioning rollers 7 are passed through the four sides of the positioning frame 6, a belt transmission assembly 8 is passed through between the top and bottom of the fixed seat 4 and below the four positioning rollers 7, electric lifting rods 11 are fixedly connected around the top of the base 1 and directly below the unloading window 5, the output ends of the four electric lifting rods 11 extend to the inside of the positioning frame 6 through the unloading window 5, a placing table 12 is fixedly connected between the output ends of the four electric lifting rods 11 and below the four positioning rollers 7, and the four electric lifting rods 11 are connected to an external power supply and are provided with the same power control switch.

[0025] See also Figure 2-4 The positioning clamping roller 7 includes a tooth plate 71, which runs through one side of the positioning frame 6 and one side of the inner wall. A mounting plate 72 is fixedly connected to one side of the tooth plate 71 and located inside the positioning frame 6. Two fixing blocks 73 are fixedly connected to one side of the mounting plate 72. The bottoms of the two fixing blocks 73 are rotatably connected to rubber rollers 74 through a rotating shaft. The top and bottom of the tooth plate 71 are fixedly connected to sliding bars. The tooth plate 71 is slidably connected to the positioning frame 6 through the sliding bars, and a sliding groove that cooperates with the sliding connection of the tooth plate 71 is opened on the positioning frame 6.

[0026] See also Figure 3-5The belt transmission assembly 8 includes four transmission shafts 81 and four connecting shafts 83. The four transmission shafts 81 are rotatably connected to the four sides of the top of the fixed seat 4 respectively. The axial surfaces of the four transmission shafts 81 are sleeved with a first double-groove pulley 82. The four connecting shafts 83 are fixedly connected to the four sides of the top of the fixed seat 4 respectively, and each connecting shaft 83 is adjacent to the toothed plate 71 inside each positioning clamping roller 7 respectively. The axial surface of each connecting shaft 83 is sleeved with a second double-groove pulley 85. The wheel surfaces of every two adjacent first double-groove pulleys 82 and the second double-groove pulley 85 are connected by belt transmission. The axial surface of each connecting shaft 83 and the teeth of any toothed plate 71 are sleeved with a transmission wheel 84. The toothed plate 71 is meshed with the transmission wheel 84, and the transmission wheel 84 is fixedly connected to the connecting shaft 83. The second double-groove pulley 85 is fixedly connected to the connecting shaft 83, and the transmission shaft 81 is fixedly connected to the first double-groove pulley 82.

[0027] See also Figure 3-5 A chassis 86 is fixedly connected to the bottom of the fixed base 4 and directly below one of the connecting shafts 83. A motor 87 is fixedly connected to the inside of the chassis 86. The motor 87 is a three-phase asynchronous motor, and the output end can be adjusted for forward and reverse rotation. The motor 87 is connected to an external power supply and is provided with a power control switch. One end of the connecting shaft 83 sequentially penetrates the fixed base 4 and the chassis 86 and extends to the inside of the chassis 86. One end of the connecting shaft 83 is fixedly connected to the output end of the motor 87, and the connecting shaft 83 is rotatably connected to the chassis 86.

[0028] Specific implementation method: By starting the output end contraction switch of the four electric lifting rods 11, the placement table 12 can be driven to move downward, so that the placement table 12 moves to the bottom of the fixed seat 4, and the processed circuit layer boards are stacked and placed on the top of the placement table 12. The electric lifting rods 11 are started to push the placement table 12 to move upward. The placement table 12 moves the stacked circuit boards from the unloading window 5 to the inside of the positioning frame 6 and is located between the four positioning rollers 7. Then, the output end of the motor 87 inside the belt conveyor assembly 8 is started to rotate the switch clockwise, so that a connecting shaft 83 can be used to connect the circuit boards. It drives a transmission wheel 84 and a second double-groove pulley 85 to rotate clockwise, and through the belt transmission connection relationship, the four connecting shafts 83 and the four transmission shafts 81 rotate clockwise at the same time, and the four connecting shafts 83 drive the four transmission wheels 84 to rotate clockwise at the same time. Since the transmission wheel 84 is meshed with the tooth plate 71, the tooth plate 71 can be driven to slide on the positioning frame 6, and the tooth plate 71 slides from the outside to the inside, and then the distance between the rubber rollers 74 inside the four positioning clamping rollers 7 can be reduced, so that the multi-layer circuit boards stacked on the top of the placement table 12 can be calibrated and stacked from four sides at the same time.

[0029] After stacking is completed, the electric hot press machine 2 is started to perform hot pressing on the circuit board below, and then the retraction switch at the output end of the electric lifting rod 11 is started, so that the placement table 12 can be driven to move downward from the inside of the unloading window 5 and move to the bottom of the fixed seat 4, so that the circuit board that has been hot pressed can be removed.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit board pressing and fixing device, comprising a base (1) and an electric hot press (2), characterized in that: The top of the base (1) is fixedly connected to support seats (3) on all sides, a fixed seat (4) is fixedly connected between the tops of the four support seats (3), a discharge window (5) is provided between the top and bottom of the fixed seat (4), a positioning frame (6) is fixedly connected to the top of the fixed seat (4) and directly above the discharge window (5), the top of the fixed seat (4) is fixedly connected to connecting seats (9) on all sides, a bearing plate (10) is fixedly connected between the tops of the four connecting seats (9), the electric hot press (2) is fixedly connected to the bottom of the bearing plate (10) and located at the top of the positioning frame (6). Directly above, positioning rollers (7) are passed through the four sides of the positioning frame (6); a belt transmission assembly (8) is passed through between the top and bottom of the fixed seat (4) and below the four positioning rollers (7); electric lifting rods (11) are fixedly connected around the top of the base (1) and directly below the discharge window (5); the output ends of the four electric lifting rods (11) extend to the inside of the positioning frame (6) through the discharge window (5); and a placement table (12) is fixedly connected between the output ends of the four electric lifting rods (11) and below the four positioning rollers (7).

2. A circuit board pressing and fixing device according to claim 1, characterized in that: The positioning clamping roller (7) comprises a tooth plate (71), the tooth plate (71) passes through one side of the positioning frame (6) and one side of the inner wall, a mounting plate (72) is fixedly connected to one side of the tooth plate (71) and located inside the positioning frame (6), two fixing blocks (73) are fixedly connected to one side of the mounting plate (72), and the bottoms of the two fixing blocks (73) are rotatably connected to rubber rollers (74) via rotating shafts.

3. A circuit board pressing and fixing device according to claim 2, characterized in that: The top and bottom of the tooth plate (71) are fixedly connected with sliding bars, the tooth plate (71) is slidably connected to the positioning frame (6) via the sliding bars, and the positioning frame (6) is provided with a sliding groove that cooperates with the sliding connection of the tooth plate (71).

4. A circuit board pressing and fixing device according to claim 1, characterized in that: The belt transmission assembly (8) comprises four transmission shafts (81) and four connecting shafts (83). The four transmission shafts (81) are rotatably connected to the four sides of the top of the fixed seat (4). The axial surfaces of the four transmission shafts (81) are sleeved with a first double-groove pulley (82). The four connecting shafts (83) are fixedly connected to the four sides of the top of the fixed seat (4). Each connecting shaft (83) is adjacent to a tooth plate (71) inside each positioning clamping roller (7). The axial surface of each connecting shaft (83) is sleeved with a second double-groove pulley (85). The wheel surfaces of every two adjacent first double-groove pulleys (82) and second double-groove pulleys (85) are connected by belt transmission. The axial surface of each connecting shaft (83) and the teeth of any tooth plate (71) are sleeved with a transmission wheel (84).

5. A circuit board pressing and fixing device according to claim 4, characterized in that: The toothed plate (71) is meshed with a transmission wheel (84), the transmission wheel (84) is fixedly connected to a connecting shaft (83), the second double-groove pulley (85) is fixedly connected to the connecting shaft (83), and the transmission shaft (81) is fixedly connected to the first double-groove pulley (82).

6. A circuit board pressing and fixing device according to claim 4, characterized in that: A chassis (86) is fixedly connected to the bottom of the fixing seat (4) and directly below a connecting shaft (83) thereof, and a motor (87) is fixedly connected to the interior of the chassis (86).

7. A circuit board pressing and fixing device according to claim 6, characterized in that: One end of a connecting shaft (83) passes through the fixing seat (4) and the chassis (86) in sequence and extends to the interior of the chassis (86), one end of a connecting shaft (83) is fixedly connected to the output end of the motor (87), and the connecting shaft (83) is rotatably connected to the chassis (86).

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