Clamping device for circuit board

Abstract

The utility model relates to the technical field of circuit board clamping, in particular to a clamping device for a circuit board, which comprises a rack, a controller fixed on the rack, a plurality of electric clamping jaws arranged on one side of the rack at equal intervals, and a distance adjusting mechanism used for driving the adjacent electric clamping jaws to be close to or far away from each other, the electric cylinder is used for driving the distance adjusting mechanism to ascend or descend, the air cooling mechanism is fixed to the machine frame, the electric cylinder is fixed to the machine frame through a connecting frame, and the air outlet end of the air cooling mechanism is arranged right opposite to the electric clamping jaw. The distance adjusting mechanism, the electric clamping jaw, the electric cylinder and the air cooling mechanism are all electrically connected with the controller. According to the utility model, a plurality of circuit boards can be clamped at one time for tin immersion, the tin immersion efficiency is higher, and the practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board clamping, in particular to a clamping device for circuit boards. Background Art

[0002] During the processing of circuit boards, tin dipping is required, specifically, the circuit board is clamped by a circuit board clamping device, and then immersed in the tin heated in the tin furnace to complete the tin dipping. Therefore, the existing Chinese patent with authorization announcement number CN214640866U discloses an electronic circuit board clamping device, including an electronic circuit board clamping mechanism and a fan. The electronic circuit board clamping mechanism includes a working box, the top of the working box is fixedly connected to a handle, the bottom of the working box is provided with a rotating groove, a rotating rod is provided inside the rotating groove, both sides of the surface of the rotating rod are provided with a movable sleeve, and the inner wall of the movable sleeve is provided with an internal thread, the surface of the rotating rod is provided with an external thread, and the surface of the main clamping rod is installed with an auxiliary clamping mechanism. The utility model enables users to conveniently clamp electronic circuit boards, which is labor-saving and more secure, preventing the electronic circuit boards from falling during the tinning process. The utility model can dissipate heat and cool the electronic circuit boards after tinning, and can clamp electronic circuit boards of different specifications, making it convenient for users to tin electronic circuit boards of different specifications.

[0003] However, the above device still has the following deficiencies in practical applications: First, when in use, the above device can only clamp one circuit board at a time for tinning, and the clamping efficiency is low, resulting in low tinning efficiency and poor practicality. Utility Model Content

[0004] The purpose of the present invention is to address the above-mentioned deficiencies and provide a clamping device for circuit boards, which can clamp multiple circuit boards at one time for tinning, and has higher tinning efficiency and better practicality.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A clamping device for circuit boards includes a frame, a controller fixed to the frame, a plurality of electric clamps equidistantly arranged on one side of the frame, a spacing adjustment mechanism for driving adjacent electric clamps to move closer to or away from each other, an electric cylinder for driving the spacing adjustment mechanism to rise or fall, and an air cooling mechanism fixed to the frame, wherein the electric cylinder is fixed to the frame via a connecting frame, and an air outlet end of the air cooling mechanism is arranged opposite to the electric clamps. The spacing adjustment mechanism, electric clamps, electric cylinder and air cooling mechanism are all electrically connected to the controller.

[0007] Furthermore, the spacing adjustment mechanism includes a back plate fixed to the rod head of the electric cylinder piston rod, two fixed plates are arranged opposite the bottom of the back plate, a slide rod, a drive shaft and a plurality of slide seats are arranged between the two fixed plates, the slide rod is fixed to the fixed plate, the drive shaft is rotatably connected between the two fixed plates, the slide seat is slidably connected to the slide rod, a clamping drive assembly is fixed on the back plate, the clamping drive assembly is used to drive the drive shaft to rotate, a plurality of guide slots are arranged on the drive shaft to the left and right with the axis of the drive shaft as the reference point, a slide block is slidably connected to the guide slot, and one end of the slide block is connected to the slide seat after extending out of the guide slot, and the electric clamp is fixed on the slide seat.

[0008] Furthermore, a driven wheel is provided at one end of the driving shaft; the clamping drive assembly includes a stepping motor fixed on the back plate, the output shaft of the stepping motor is drivingly connected to a driving wheel, and the driving wheel and the driven wheel are connected by a belt.

[0009] Furthermore, a slide groove is provided at the bottom of the slide seat, and a clamping drive block is slidably connected in the slide groove; the electric clamp includes a fixed block fixed at one end of the slide groove, a clamping block arranged opposite to the fixed block, and an electric telescopic rod fixed on the fixed block, the clamping drive block is fixedly connected to the clamping block, and the piston rod head of the electric telescopic rod is drivingly connected to the clamping drive block.

[0010] Furthermore, the air cooling mechanism includes an air cooler and a cold air seat fixed on the frame, a cold air cavity arranged in the cold air seat, and a plurality of cold air holes arranged on one side of the cold air cavity, which are used to connect the air outlet end of the air cooler and the air duct used in the cold air cavity. When the electric clamp is in an upward state, the air outlet end of the cold air hole is arranged opposite to the electric clamp.

[0011] The beneficial effects of the utility model are:

[0012] In actual application, multiple electric clamps can be set up to clamp multiple circuit boards at the same time. The electric cylinder drives the spacing adjustment mechanism to drive the electric clamps to move downward, and the circuit boards clamped by the electric clamps can be dipped into tin. After the tinning is completed, the electric cylinder drives the spacing adjustment mechanism to drive the electric clamps to move upward, and the air cooling mechanism can accelerate the cooling of the circuit boards after tinning. Since the thicknesses of different types of circuit boards are different, the spacing between adjacent electric clamps is adjusted by the spacing adjustment mechanism to make it suitable for tinning circuit boards of different thicknesses. The utility model can clamp multiple circuit boards for tinning at one time, and the tinning efficiency is higher and the practicality is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a right side view of the utility model;

[0015] Figure 3 It is a bottom view of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the electric clamping jaws and the spacing adjustment mechanism in the utility model;

[0017] Figure numerals: frame 1; controller 2; electric clamp 3; fixed block 31; clamping block 32; electric telescopic rod 33; spacing adjustment mechanism 4; back plate 41; fixed plate 42; slide bar 43; drive shaft 44; guide slot 441; driven pulley 442; slide seat 45; slide slot 451; stepper motor 461; driving pulley 462; belt 463; electric cylinder 5; air cooling mechanism 6; air cooler 61; cold air seat 62; cold air hole 621; air duct 63. DETAILED DESCRIPTION

[0018] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a clamping device for a circuit board includes a frame 1, a controller 2 fixed on the frame 1, a plurality of electric grippers 3 equidistantly arranged on one side of the frame 1, a spacing adjustment mechanism 4 used to drive adjacent electric grippers 3 to move closer to or away from each other, an electric cylinder 5 used to drive the spacing adjustment mechanism 4 to rise or fall, and an air cooling mechanism 6 fixed on the frame 1, the electric cylinder 5 is fixed to the frame 1 through a connecting frame, and the air outlet end of the air cooling mechanism 6 is arranged opposite to the electric grippers 3, and the spacing adjustment mechanism 4, electric grippers 3, electric cylinder 5 and air cooling mechanism 6 are all electrically connected to the controller 2.

[0019] By setting up multiple electric clamps 3, multiple circuit boards can be clamped at the same time. The electric cylinder 5 drives the spacing adjustment mechanism 4 to drive the electric clamps 3 to move downward, and the circuit boards clamped by the electric clamps 3 can be tinned. After the tinning is completed, the electric cylinder 5 drives the spacing adjustment mechanism 4 to drive the electric clamps 3 to move upward, and the air cooling mechanism 6 can accelerate the cooling of the circuit boards after tinning. Since different types of circuit boards have different thicknesses, the spacing between adjacent electric clamps 3 is adjusted by the spacing adjustment mechanism 4 to make them suitable for tinning circuit boards of different thicknesses. The utility model can clamp multiple circuit boards for tinning at one time, and the tinning efficiency is higher and the practicability is better.

[0020] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the spacing adjustment mechanism 4 includes a back plate 41 fixed to the piston rod head of the electric cylinder 5, and two fixed plates 42 are arranged opposite the bottom of the back plate 41. A slide rod 43, a drive shaft 44 and a plurality of slide seats 45 are arranged between the two fixed plates 42. The slide rod 43 is fixed to the fixed plates 42, and the drive shaft 44 is rotatably connected between the two fixed plates 42. The slide seat 45 is slidably connected to the slide rod 43. A clamping drive assembly is fixed on the back plate 41, and the clamping drive assembly is used to drive the drive shaft 44 to rotate. With the axis of the driving shaft 44 as the reference point, a plurality of guide slots 441 are respectively provided to the left and right, and a slider is slidably connected in the guide slot 441. One end of the slider extends out of the guide slot 441 and is connected to the slide 45, and the electric clamp 3 is fixed on the slide 45; in this embodiment, during the process of the clamping drive assembly driving the driving shaft 44 to rotate, the rotation of the driving shaft 44 drives the slider to slide along the guide slot 441, and at the same time the slide 45 slides along the slide rod 43, so that the multiple slides 45 drive the electric clamps 3 to move closer or farther away from each other, making it suitable for tinning circuit boards of different thicknesses.

[0021] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a driven wheel 442 is provided at one end of the driving shaft 44; the clamping drive assembly includes a stepper motor 461 fixed on the back plate 41, and the output shaft of the stepper motor 461 is driven and connected to a driving wheel 462, and the driving wheel 462 and the driven wheel 442 are connected by a belt 463; in this embodiment, the stepper motor 461 drives the driving wheel 462 to rotate, and the driving wheel 462 drives the driven wheel 442 and the driving shaft 44 to rotate through the belt 463.

[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a slide groove 451 is provided at the bottom of the slide 45, and a clamping drive block is slidably connected in the slide groove 451; the electric clamp 3 includes a fixed block 31 fixed at one end of the slide groove 451, a clamping block 32 arranged opposite to the fixed block 31, and an electric telescopic rod 33 fixed on the fixed block 31, the clamping drive block is fixedly connected to the clamping block 32, and the piston rod head of the electric telescopic rod 33 is drivingly connected to the clamping drive block; in this embodiment, the clamping drive block is driven to slide along the slide groove 451 by the extension and retraction of the piston rod head of the electric telescopic rod 33, thereby clamping the circuit board between the fixed block 31 and the clamping block 32.

[0023] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the air cooling mechanism 6 includes an air cooler 61 and a cold air seat 62 fixed on the frame 1, a cold air cavity arranged in the cold air seat 62, and a plurality of cold air holes 621 arranged on one side of the cold air cavity, which are used to connect the air outlet end of the air cooler 61 and the air duct 63 adopted by the cold air cavity. When the electric clamp 3 is in an ascending state, the air outlet end of the cold air hole 621 is arranged opposite to the electric clamp 3. In this embodiment, after the tinning is completed, the electric cylinder 5 drives the spacing adjustment mechanism 4 to drive the electric clamp 3 to move upward, and the cold air is drawn into the cold air cavity through the air cooler 61 and the air duct 63, and then flows out from the cold air hole 621, thereby accelerating the cooling of the circuit board after tinning.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the scope defined by the spirit of the present invention.

Claims

1. A clamping device for a circuit board, characterized in that: The invention comprises a frame (1), a controller (2) fixed on the frame (1), a plurality of electric clamps (3) equidistantly arranged on one side of the frame (1), a spacing adjustment mechanism (4) used to drive adjacent electric clamps (3) to move closer to or farther from each other, an electric cylinder (5) used to drive the spacing adjustment mechanism (4) to rise or fall, and an air cooling mechanism (6) fixed on the frame (1), wherein the electric cylinder (5) is fixed on the frame (1) via a connecting frame, an air outlet end of the air cooling mechanism (6) is arranged facing the electric clamps (3), and the spacing adjustment mechanism (4), the electric clamps (3), the electric cylinder (5) and the air cooling mechanism (6) are all electrically connected to the controller (2).

2. The clamping device for a circuit board according to claim 1, characterized in that: The spacing adjustment mechanism (4) comprises a back plate (41) fixed on the piston rod head of the electric cylinder (5); two fixed plates (42) are arranged opposite to the bottom of the back plate (41); a slide bar (43), a drive shaft (44) and a plurality of slide seats (45) are arranged between the two fixed plates (42); the slide bar (43) is fixed on the fixed plates (42); the drive shaft (44) is rotatably connected between the two fixed plates (42); the slide seat (45) is slidably connected to the slide bar (43), a clamping drive assembly is fixed on the back plate (41), and the clamping drive assembly is used to drive the driving shaft (44) to rotate. The driving shaft (44) is provided with a plurality of guide slots (441) to the left and right respectively with the axis of the driving shaft (44) as a reference point, and a slider is slidably connected in the guide slot (441). After one end of the slider extends out of the guide slot (441), it is connected to the slide seat (45), and the electric clamp (3) is fixed on the slide seat (45).

3. The clamping device for a circuit board according to claim 2, characterized in that: A driven wheel (442) is provided at one end of the driving shaft (44); the clamping driving assembly comprises a stepping motor (461) fixed on the back plate (41); a driving wheel (462) is drivingly connected to the output shaft of the stepping motor (461); and the driving wheel (462) and the driven wheel (442) are connected via a belt (463).

4. The clamping device for a circuit board according to claim 2, characterized in that: A slide groove (451) is provided at the bottom of the slide seat (45), and a clamping drive block is slidably connected in the slide groove (451); the electric clamp (3) comprises a fixed block (31) fixed at one end of the slide groove (451), a clamping block (32) arranged opposite to the fixed block (31), and an electric telescopic rod (33) fixed on the fixed block (31); the clamping drive block is fixedly connected to the clamping block (32), and the piston rod head of the electric telescopic rod (33) is drivingly connected to the clamping drive block.

5. The clamping device for a circuit board according to claim 1, characterized in that: The air cooling mechanism (6) comprises an air cooler (61) and a air cooler seat (62) fixed on the frame (1), a air cooler cavity arranged in the air cooler seat (62), and a plurality of air cooler holes (621) arranged on one side of the air cooler cavity, which are used to connect the air outlet end of the air cooler (61) and the air duct (63) used in the air cooler cavity; when the electric clamp (3) is in an ascending state, the air outlet end of the air cooler hole (621) is arranged directly opposite to the electric clamp (3).

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