Multilayer circuit board pressing device

Abstract

The present invention provides a multi-layer circuit board pressing device, including a base, a limit assembly is installed on the upper surface of the base, and the limit assembly includes a workbench, a sliding seat, a turntable, a support frame, a positioning clamp, a contact switch and a limit seat; the support frame is fixedly connected to the lower surface of the workbench. The present invention drives the turntable to rotate by a driving motor, so that two positioning clamps can be close to each other. When the positioning clamp is in contact with the circuit board, the positioning spring is stretched as the sliding seat moves. When the limit seat triggers the contact switch, the contact switch sends a signal to the controller, and the controller controls the driving motor to stop working. At this time, the positioning of the circuit board is completed. Compared with the prior art, the present invention can automatically align the circuit board to the center position while limiting the circuit board, thereby ensuring the pressing accuracy of the circuit board. By setting structures such as positioning springs and contact switches, the circuit board can be prevented from being damaged by excessive force.

Description

Technical Field

[0001] The invention relates to a pressing device, in particular to a multi-layer circuit board pressing device, and belongs to the technical field of circuit board pressing. Background Art

[0002] Circuit board lamination is a crucial part of the printed circuit board manufacturing process, which is directly related to the reliability and performance of the product. It has been widely used in aerospace, national defense, mobile communications, laptops, computer peripherals and other industries.

[0003] The existing multi-layer circuit board pressing device is not provided with a clamping and limiting structure, and the circuit board is easily misaligned during the pressing process, resulting in loose pressing of the circuit board, substandard quality, and increased production costs;

[0004] A known Chinese public authorized patent (publication number: CN218603740U) discloses a multi-layer circuit board pressing device, which can rotate a hand crank to drive the screw rod to rotate, and the second fixed block can perform telescopic movement. The second fixed block slides along the second slide groove through the second slider. Since one side of the second fixed block is provided with anti-slip grooves, its stability can be increased and it is not easy to fall off. Through the design of the fixing component, the circuit board can be prevented from being misplaced during pressing, thereby improving the working efficiency.

[0005] By setting a limiting structure, the circuit board will not be misaligned during the pressing process of the circuit board. However, since the position of the top pressing plate is fixed, the pressing plate and the circuit board need to be accurately aligned. However, the limiting structure cannot achieve automatic center alignment of the circuit board during use, which will affect the pressing work of the circuit board. Therefore, a multi-layer circuit board pressing device is proposed. Summary of the invention

[0006] In view of this, the present invention provides a multi-layer circuit board pressing device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the embodiment of the present invention is implemented as follows: a multi-layer circuit board pressing device includes a base, a limit assembly is installed on the upper surface of the base, and the limit assembly includes a workbench, a sliding seat, a turntable, a support frame, a positioning clamping plate, a slide rod, a driving motor, two positioning rods, a positioning tension spring, a contact switch and a limit seat;

[0008] The support frame is fixedly connected to the lower surface of the workbench, the drive motor is installed on the lower surface of the support frame, the upper surface of the turntable is symmetrically provided with two arc grooves, the sliding rod is fixedly connected to the lower surface of the sliding seat, the limit seat is slidably connected to the inside of the sliding seat, the two positioning rods are symmetrically fixedly connected to one side of the limit seat, the positioning clamping plate is fixedly connected to the other side of the limit seat, the positioning tension spring is sleeved on the outer side wall of the positioning rod, the contact switch is installed on the inner side wall of the sliding seat, and the upper surface of the workbench is provided with a limit groove.

[0009] Further preferably, the turntable is rotatably connected to the lower surface of the workbench, the slide rod is slidably connected to the inner wall of the arc groove, the turntable is located inside the support frame, and the output shaft of the drive motor is fixedly connected to the lower surface of the turntable.

[0010] Further preferably, one end of the positioning rod away from the limit seat passes through the sliding seat and is slidably connected to the sliding seat, the position of the contact switch corresponds to the position of the limit seat, and the sliding seat is slidably connected to the inside of the workbench.

[0011] Further preferably, one end of the positioning tension spring is fixedly connected to the positioning rod, and the other end of the positioning tension spring is fixedly connected to the sliding seat.

[0012] Further preferably, the positioning clamp is slidably connected to the inner wall of the limit groove, a controller is installed on the outer wall of the workbench, the signal end of the contact switch is connected to the signal end of the controller, and the support frame is installed on the upper surface of the base.

[0013] Further preferably, a pressing assembly is arranged above the base, and the pressing assembly includes a pressing cylinder, a mounting cover, two connecting seats, two pressing plates, two sliding grooves, a supporting spring, two fixing rods and a supporting plate;

[0014] The cylinder shaft of the pressing cylinder is fixedly connected to the upper surface of the mounting cover, the two fixing rods are symmetrically fixedly connected to the inside of the support plate, the support plate is fixedly connected to the inner side wall of the mounting cover, the two connecting seats are fixedly connected to the upper surfaces of the two pressing plates, the supporting spring is sleeved on the outer side wall of the fixing rod, and the two sliding grooves are symmetrically opened on the outer side wall of the connecting seat.

[0015] Further preferably, the two connecting seats are symmetrically slidably connected to the outer side walls of the two fixing rods, one end of the support spring is fixedly connected to the connecting seat, and the other end of the support spring is fixedly connected to the support plate.

[0016] Further preferably, two slide rails are fixedly connected inside the mounting cover, and the slide rails are slidably connected to the inner side walls of the slide groove.

[0017] Further preferably, a top plate is installed on the upper surface of the base, the pressing cylinder is installed on the upper surface of the top plate, the position of the pressing plate corresponds to the position of the limiting groove, and the upper surface of the positioning clamp is fixedly connected with a guide inclined plate.

[0018] Further preferably, two guide rods are symmetrically fixedly connected to the upper surface of the mounting cover, and the guide rods are slidably connected to the inside of the top plate.

[0019] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0020] The present invention drives the turntable to rotate through a driving motor, and the turntable drives the sliding rod through the internal arc groove, and the sliding rod drives the sliding seat to slide in the workbench, so that the two positioning clamps can be close to each other. When the positioning clamp is in contact with the circuit board, the positioning spring is stretched as the sliding seat moves. When the limit seat triggers the contact switch, the contact switch sends a signal to the controller, and the controller controls the driving motor to stop working. At this time, the positioning of the circuit board is completed. Compared with the prior art, the present invention can automatically align the circuit board to the center position while limiting the circuit board, thereby ensuring the pressing accuracy of the circuit board. By setting structures such as the positioning spring and the contact switch, the circuit board can be prevented from being damaged by excessive force, which protects the circuit board. When the size of the circuit board changes, the two positioning clamps can also be used to clamp the circuit board, thereby enhancing adaptability and being able to cope with circuit boards of different sizes.

[0021] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0023] Figure 1 It is a structural diagram of a multi-layer circuit board pressing device of the present invention;

[0024] Figure 2 It is a structural diagram of the limiting component of the present invention;

[0025] Figure 3 It is a structural diagram of a turntable of the present invention;

[0026] Figure 4 It is a structural diagram of the sliding seat of the present invention;

[0027] Figure 5 It is a structural diagram of the pressing assembly of the present invention;

[0028] Figure 6 This is a disassembled view of the press-fit assembly of the present invention.

[0029] 1. The support frame includes the support rod, the support rod and the guide rod. The support rod includes the support rod and the guide rod. The support rod includes the support rod and the guide rod. The support rod includes the support rod and the guide rod. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-Figure 6 As shown, the embodiment of the present invention provides a multi-layer circuit board pressing device, including a base 26, a limit assembly 101 is installed on the upper surface of the base 26, and the limit assembly 101 includes a workbench 11, a sliding seat 13, a rotating disk 15, a support frame 16, a positioning clamping plate 17, a sliding rod 18, a driving motor 19, two positioning rods 21, a positioning tension spring 22, a contact switch 23 and a limit seat 24;

[0033] The support frame 16 is fixedly connected to the lower surface of the workbench 11, the drive motor 19 is installed on the lower surface of the support frame 16, the upper surface of the turntable 15 is symmetrically provided with two arc grooves 20, the slide rod 18 is fixedly connected to the lower surface of the sliding seat 13, the limit seat 24 is slidably connected to the inside of the sliding seat 13, the two positioning rods 21 are symmetrically fixedly connected to one side of the limit seat 24, the positioning clamping plate 17 is fixedly connected to the other side of the limit seat 24, the positioning tension spring 22 is sleeved on the outer side wall of the positioning rod 21, the contact switch 23 is installed on the inner side wall of the sliding seat 13, and the upper surface of the workbench 11 is provided with a limit groove 12;

[0034] The limiting assembly 101 is used to realize the clamping and alignment of the circuit board. When clamping the circuit board, the circuit board is placed inside the limiting groove 12, and the turntable 15 is driven by the driving motor 19. The turntable 15 drives the slide bar 18, and the slide bar 18 drives the sliding seat 13 to slide in the workbench 11. The sliding seat 13 drives the limiting seat 24, and the limiting seat 24 drives the positioning clamp 17, so that the two positioning clamps 17 can be brought close to each other. While the two positioning clamps 17 limit the circuit board, the circuit board can be automatically aligned to the center position.

[0035] In one embodiment, the turntable 15 is rotatably connected to the lower surface of the workbench 11, the slide bar 18 is slidably connected to the inner wall of the arc groove 20, the turntable 15 is located inside the support frame 16, and the output shaft of the drive motor 19 is fixedly connected to the lower surface of the turntable 15. The turntable 15 is driven to rotate by the drive motor 19, and the turntable 15 drives the slide bar 18 through the internal arc groove 20, so that the two slide bars 18 can be brought close to each other, thereby realizing the clamping action of the circuit board.

[0036] In one embodiment, one end of the positioning rod 21 away from the limit seat 24 passes through the sliding seat 13 and is slidably connected to the sliding seat 13. The position of the contact switch 23 corresponds to the position of the limit seat 24. The sliding seat 13 is slidably connected to the inside of the workbench 11. One end of the positioning spring 22 is fixedly connected to the positioning rod 21, and the other end of the positioning spring 22 is fixedly connected to the sliding seat 13. When the positioning clamp 17 is in contact with the circuit board, as the sliding seat 13 moves, the positioning spring 22 is stretched. When the limit seat 24 triggers the contact switch 23, the drive motor 19 stops working. At this time, the positioning of the circuit board is completed. By setting structures such as the positioning spring 22 and the contact switch 23, the circuit board can be prevented from being damaged by excessive force, which protects the circuit board. When the size of the circuit board changes, the two positioning clamps 17 can also be used to clamp the circuit board, thereby enhancing adaptability and being able to cope with circuit boards of different sizes.

[0037] In one embodiment, the positioning clamp 17 is slidably connected to the inner wall of the limit groove 12, the controller 14 is installed on the outer wall of the workbench 11, the signal end of the contact switch 23 is connected to the signal end of the controller 14, the support frame 16 is installed on the upper surface of the base 26, the signal end of the controller 14 is connected to the signal end of the drive motor 19, and the model of the controller 14 is: OHR-PR10.

[0038] In one embodiment, a pressing assembly 301 is disposed above the base 26, and the pressing assembly 301 includes a pressing cylinder 31, a mounting cover 33, two connecting seats 35, two pressing plates 36, two slide grooves 37, a supporting spring 38, two fixing rods 39 and a supporting plate 40;

[0039] The cylinder shaft of the pressing cylinder 31 is fixedly connected to the upper surface of the mounting cover 33, the two fixing rods 39 are symmetrically fixedly connected to the inside of the support plate 40, the support plate 40 is fixedly connected to the inner side wall of the mounting cover 33, the two connecting seats 35 are fixedly connected to the upper surfaces of the two pressing plates 36, the supporting spring 38 is sleeved on the outer side wall of the fixing rod 39, and the two sliding grooves 37 are symmetrically opened on the outer side wall of the connecting seat 35;

[0040] The pressing assembly 301 is used to realize the pressing action of the circuit board. The pressing cylinder 31 pushes the installation cover 33, and the installation cover 33 drives the pressing plate 36 to move downward. The pressing plate 36 contacts the circuit board, and the pressing operation is completed.

[0041] In one embodiment, the two connecting seats 35 are symmetrically slidably connected to the outer side walls of the two fixing rods 39, one end of the support spring 38 is fixedly connected to the connecting seat 35, and the other end of the support spring 38 is fixedly connected to the support plate 40. The interior of the mounting cover 33 is fixedly connected to two slide rails 34, and the slide rails 34 are slidably connected to the inner side walls of the slide groove 37. When the pressing plate 36 contacts the two positioning clamping plates 17, the two pressing plates 36 approach each other, and the support spring 38 is compressed by force, so as to meet different use conditions.

[0042] When the size of the circuit board becomes smaller, the distance between the two positioning clamps 17 is smaller than the length of the two pressing plates 36. At this time, during pressing, the two pressing plates 36 are in contact with the positioning clamps 17, and the length of the two pressing plates 36 after compression is equal to the distance between the two positioning clamps 17.

[0043] In one embodiment, a top plate 41 is installed on the upper surface of the base 26, and the pressing cylinder 31 is installed on the upper surface of the top plate 41. The position of the pressing plate 36 corresponds to the position of the limiting groove 12. The upper surface of the positioning clamp 17 is fixedly connected with a guide inclined plate 25, and the guide inclined plate 25 can play a guiding role so that the two pressing plates 36 can be close to each other.

[0044] In one embodiment, two guide rods 32 are symmetrically fixedly connected to the upper surface of the installation cover 33. The guide rods 32 are slidably connected to the inside of the top plate 41. The guide rods 32 can play a guiding role so that the installation cover 33 can be lifted and lowered vertically.

[0045] When the present invention is working, the circuit board is placed in the limiting groove 12, the rotating disk 15 is driven to rotate by the driving motor 19, the rotating disk 15 drives the sliding rod 18 through the internal arc groove 20, the sliding rod 18 drives the sliding seat 13 to slide in the workbench 11, the sliding seat 13 drives the limiting seat 24, the limiting seat 24 drives the positioning clamping plate 17, and then the two positioning clamping plates 17 can be brought close to each other. When the positioning clamping plate 17 is fitted with the circuit board, as the sliding seat 13 moves, the positioning tension spring 22 is stretched, and when the limiting seat 24 triggers the contact to open When the contact switch 23 is closed, the contact switch 23 sends a signal to the controller 14, and the controller 14 controls the driving motor 19 to stop working. At this time, the positioning of the circuit board is completed, and the mounting cover 33 is pushed by the pressing cylinder 31, and the mounting cover 33 drives the pressing plate 36 to move downward. When the pressing plate 36 contacts the two positioning clamps 17, the two pressing plates 36 approach each other, and the supporting spring 38 is compressed by force. The length of the two pressing plates 36 is equal to the spacing between the two positioning clamps 17. When the pressing plate 36 contacts the circuit board, the pressing operation is completed.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-layer circuit board pressing device, comprising a base (26), characterized in that: A limit assembly (101) is installed on the upper surface of the base (26), and the limit assembly (101) comprises a workbench (11), a sliding seat (13), a turntable (15), a support frame (16), a positioning clamp (17), a sliding rod (18), a driving motor (19), two positioning rods (21), a positioning tension spring (22), a contact switch (23) and a limit seat (24); The support frame (16) is fixedly connected to the lower surface of the workbench (11), the drive motor (19) is installed on the lower surface of the support frame (16), the upper surface of the turntable (15) is symmetrically provided with two arc grooves (20), the sliding rod (18) is fixedly connected to the lower surface of the sliding seat (13), the limit seat (24) is slidably connected to the inside of the sliding seat (13), the two positioning rods (21) are symmetrically fixedly connected to one side of the limit seat (24), the positioning clamping plate (17) is fixedly connected to the other side of the limit seat (24), the positioning tension spring (22) is sleeved on the outer side wall of the positioning rod (21), the contact switch (23) is installed on the inner side wall of the sliding seat (13), and the upper surface of the workbench (11) is provided with a limit groove (12); The turntable (15) is rotatably connected to the lower surface of the workbench (11), the slide bar (18) is slidably connected to the inner wall of the arc-shaped groove (20), the turntable (15) is located inside the support frame (16), and the output shaft of the drive motor (19) is fixedly connected to the lower surface of the turntable (15); One end of the positioning rod (21) away from the limiting seat (24) passes through the sliding seat (13) and is slidably connected to the sliding seat (13); the position of the contact switch (23) corresponds to the position of the limiting seat (24); and the sliding seat (13) is slidably connected to the inside of the workbench (11).

2. A multi-layer circuit board pressing device according to claim 1, characterized in that: One end of the positioning tension spring (22) is fixedly connected to the positioning rod (21), and the other end of the positioning tension spring (22) is fixedly connected to the sliding seat (13).

3. A multi-layer circuit board pressing device according to claim 2, characterized in that: The positioning clamp (17) is slidably connected to the inner wall of the limiting groove (12), a controller (14) is installed on the outer wall of the workbench (11), a signal end of the contact switch (23) is connected to the signal end of the controller (14), and the support frame (16) is installed on the upper surface of the base (26).

4. A multi-layer circuit board pressing device according to claim 3, characterized in that: A pressing assembly (301) is arranged above the base (26), and the pressing assembly (301) comprises a pressing cylinder (31), a mounting cover (33), two connecting seats (35), two pressing plates (36), two sliding grooves (37), a supporting spring (38), two fixing rods (39) and a supporting plate (40); The cylinder shaft of the pressing cylinder (31) is fixedly connected to the upper surface of the mounting cover (33), the two fixing rods (39) are symmetrically fixedly connected to the inside of the support plate (40), the support plate (40) is fixedly connected to the inner wall of the mounting cover (33), the two connecting seats (35) are fixedly connected to the upper surfaces of the two pressing plates (36), the supporting spring (38) is sleeved on the outer wall of the fixing rod (39), and the two sliding grooves (37) are symmetrically opened on the outer wall of the connecting seat (35).

5. A multi-layer circuit board pressing device according to claim 4, characterized in that: The two connecting seats (35) are symmetrically slidably connected to the outer side walls of the two fixing rods (39); one end of the supporting spring (38) is fixedly connected to the connecting seat (35); and the other end of the supporting spring (38) is fixedly connected to the supporting plate (40).

6. A multi-layer circuit board pressing device according to claim 5, characterized in that: Two slide rails (34) are fixedly connected inside the mounting cover (33), and the slide rails (34) are slidably connected to the inner side walls of the slide grooves (37).

7. A multi-layer circuit board pressing device according to claim 6, characterized in that: A top plate (41) is mounted on the upper surface of the base (26), the pressing cylinder (31) is mounted on the upper surface of the top plate (41), the position of the pressing plate (36) corresponds to the position of the limiting groove (12), and a guide inclined plate (25) is fixedly connected to the upper surface of the positioning clamping plate (17).

8. A multi-layer circuit board pressing device according to claim 7, characterized in that: Two guide rods (32) are symmetrically fixedly connected to the upper surface of the mounting cover (33), and the guide rods (32) are slidably connected to the inside of the top plate (41).

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