Adjustable support for circuit board processing

Abstract

The invention discloses an adjustable support for circuit board processing. The adjustable support comprises a rotating mechanism; the frame body can be driven by the rotating mechanism to rotate around the rotating center line, and a preset area in the middle of the frame body is used for fixing a circuit board and is defined as a circuit board placing area; the first clamping assembly is used for clamping the circuit board placed on the circuit board placing area from one side; the second clamping assembly is used for clamping the circuit board placed on the circuit board placing area from the other side; and the clamping assembly driving device is arranged on the frame body and is used for driving the first clamping assembly and the second clamping assembly to synchronously move towards each other or back to back. The device can adapt to circuit boards of various sizes, and after the circuit board is fixed between the first clamping assembly and the second clamping assembly, the angle of the circuit board can be adjusted through the rotating mechanism, so that the circuit board can be easily adjusted to the optimal processing inclination angle, and surface mounting operation of workers is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board processing, and particularly relates to an adjustable support for circuit board processing. BACKGROUND

[0002] Under the current development trend of high density, miniaturization and high power of electronic devices, the circuit board, as the bearing core of various products, plays a crucial role. It is not only the basis for circuit integration and layout visualization, but also provides stable protection for large-scale manufacturing and overall structure design.

[0003] In subsequent manufacturing links such as surface mount technology (SMT), a special support must be used to fix the circuit board, but the existing support has obvious shortcomings: first, the adaptability is low, usually a set of clamps can only cope with individual board types, and it takes time to adjust when replacing the board type; second, the flexibility is insufficient, when adjusting the processing inclination angle or rotation angle, it needs to rely on manual repeated disassembly, and cannot realize efficient online switching.

[0004] Therefore, it is particularly important to develop a circuit board support that can adapt to multiple sizes and has convenient angle adjustment capability to promote the SMT production line to a higher automation and comprehensive efficiency. SUMMARY

[0005] The purpose of the present application is to provide a circuit board support that can adapt to multiple sizes and has convenient angle adjustment capability.

[0006] The technical scheme adopted by the present application to solve its technical problems is to provide an adjustable support for circuit board processing, which comprises:

[0007] A rotating mechanism, the axis of the rotating part of the rotating mechanism is the rotation center line, the rotation center line extends along the horizontal direction and is higher than the ground by a predetermined distance;

[0008] A frame body is fixedly connected with the rotating part of the rotating mechanism and can be driven to rotate around the rotation center line by the rotating mechanism; a predetermined area in the middle of the frame body is used to fix the circuit board, which is defined as a circuit board placement area;

[0009] A first clamping assembly is used to clamp the circuit board placed on the circuit board placement area from one side;

[0010] A second clamping assembly is arranged opposite to the first clamping assembly and is used to clamp the circuit board placed on the circuit board placement area from the other side;

[0011] The clamping assembly driving device is arranged on the frame body and is used to drive the first clamping assembly and the second clamping assembly to move synchronously towards or away from each other, so that the first clamping assembly and the second clamping assembly can be adjusted to positions suitable for the size of the circuit board after the circuit board is placed on the circuit board placing area.

[0012] Further, the adjustable circuit board processing support further comprises a rack, and the rotating mechanism is fixed on the rack.

[0013] Further, the adjustable circuit board processing support further comprises a support bracket and a support bracket driving device.

[0014] The number of the support brackets is two, and the support brackets are arranged on the frame body and are arranged at a height lower than the circuit board placing area; when the circuit board is placed on the circuit board placing area, the support brackets are used to support and lift the circuit board from below.

[0015] The support bracket driving device is arranged on the frame body and is used to drive the two support brackets to move synchronously towards or away from each other, so that the two support brackets can be adjusted to suitable positions to support and lift the circuit board according to the size of the circuit board when the circuit board is placed, or the two support brackets can be avoided from the circuit board when the circuit board is fixed.

[0016] Further, the adjustable circuit board processing support further comprises a first distance adjusting device and a second distance adjusting device.

[0017] The clamping assembly driving device comprises a first motor, a first sliding block and a second sliding block; the first motor is fixed on the frame body; the first sliding block and the second sliding block can move towards or away from each other under the driving of the first motor.

[0018] The first distance adjusting device is fixed opposite to the first sliding block; the number of the first clamping assemblies is two, and the first clamping assemblies are installed on the first distance adjusting device; the distance between the two first clamping assemblies can be adjusted by the first distance adjusting device.

[0019] The second distance adjusting device is fixed opposite to the second sliding block; the number of the second clamping assemblies is two, and the second clamping assemblies are installed on the second distance adjusting device; the distance between the two second clamping assemblies can be adjusted by the second distance adjusting device.

[0020] Further, the clamping assembly driving device further comprises a linear guide rail, a first double-threaded screw rod, a first screw rod nut and a second screw rod nut.

[0021] The linear guide rail is fixed on the frame body, and the first sliding block and the second sliding block are slidingly installed on the linear guide rail.

[0022] The first double thread screw rod is rotatably mounted on the frame body and is driven to rotate by the first motor; and the rotation directions of the threads on the left and right sides of the first double thread screw rod are opposite;

[0023] The first screw nut is threadedly sleeved on the left side of the first double thread screw rod and is fixedly connected with the first sliding block, and the first distance adjusting device is fixedly mounted on the first screw nut;

[0024] The second screw nut is threadedly sleeved on the right side of the first double thread screw rod and is fixedly connected with the second sliding block, and the second distance adjusting device is fixedly mounted on the second screw nut.

[0025] Further, the number of the linear guides is two, and the two linear guides are oppositely distributed on the two sides of the rotation center line and extend in parallel with the rotation center line;

[0026] The number of the first sliding blocks is two, and the two first sliding blocks correspond to each other and are respectively arranged on the two linear guides;

[0027] The number of the second sliding blocks is two, and the two second sliding blocks also correspond to each other and are respectively arranged on the two linear guides;

[0028] The number of the first double thread screw rods is two, and the two first double thread screw rods are respectively located above the two linear guides, and the two first double thread screw rods are driven to synchronously rotate by the first motor;

[0029] The number of the first screw nuts is two, and the two first screw nuts are respectively sleeved on the left sides of the two first double thread screw rods and are fixedly connected with the corresponding first sliding blocks; and the two ends of the first distance adjusting device are respectively fixedly mounted on the two first screw nuts;

[0030] The number of the second screw nuts is two, and the two second screw nuts are respectively sleeved on the right sides of the two first double thread screw rods and are fixedly connected with the corresponding second sliding blocks; and the two ends of the second distance adjusting device are respectively fixedly mounted on the two second screw nuts.

[0031] Further, the first distance adjusting device comprises a second motor, a second double-threaded screw rod and a first guide rod; the second motor is fixed on one of the first screw rod nuts; the second double-threaded screw rod is rotatably installed between the two first screw rod nuts and is in transmission connection with the output shaft of the second motor, and the rotation directions of the threads on the left and right sides of the second double-threaded screw rod are opposite; the first guide rod is fixedly installed between the two first screw rod nuts; wherein the two first clamping assemblies are respectively threadedly sleeved on the threads on the left and right sides of the second double-threaded screw rod and can slide along the first guide rod;

[0032] The second distance adjusting device comprises a third motor, a third double-threaded screw rod and a second guide rod; the third motor is fixed on one of the second screw rod nuts; the third double-threaded screw rod is rotatably installed between the two second screw rod nuts and is in transmission connection with the output shaft of the third motor, and the rotation directions of the threads on the left and right sides of the third double-threaded screw rod are opposite; the second guide rod is fixedly installed between the two second screw rod nuts; wherein the two second clamping assemblies are respectively threadedly sleeved on the threads on the left and right sides of the third double-threaded screw rod and can slide along the second guide rod.

[0033] Further, the first clamping assembly comprises a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate reduce the distance by generating magnetism through electrification to clamp the circuit board;

[0034] The second clamping assembly comprises a third clamping plate and a fourth clamping plate, and the third clamping plate and the fourth clamping plate also reduce the distance by generating magnetism through electrification to clamp the circuit board;

[0035] Further, the support bracket driving device comprises a fourth motor, a fourth double-threaded screw rod, a third screw rod nut and a fourth screw rod nut;

[0036] The fourth motor is fixed on the frame body;

[0037] The fourth double-threaded screw rod is rotatably installed at the bottom of the frame body and is driven to rotate by the fourth motor, and the rotation directions of the threads on the left and right sides of the fourth double-threaded screw rod are opposite;

[0038] The third screw rod nut is threadedly sleeved on the left side of the fourth double-threaded screw rod;

[0039] The fourth screw rod nut is threadedly sleeved on the right side of the fourth double-threaded screw rod;

[0040] One of the support brackets is fixedly connected with the third screw rod nut through a first fixed rod, and the other support bracket is fixedly connected with the fourth screw rod nut through a second fixed rod.

[0041] Further, the support support includes a box body, a support plate, a bottom plate, a connecting column, a third spring and a third electromagnet;

[0042] The box body is fixedly connected with the first fixing rod or the second fixing rod;

[0043] The bottom plate is arranged in the box body;

[0044] The support plate is arranged above the box body;

[0045] The connecting column penetrates the top surface of the box body and connects the bottom plate with the support plate;

[0046] The third spring is located in the box body and sleeved on the connecting column, and the top of the third spring abuts against the top surface of the box body, and the bottom abuts against the bottom plate;

[0047] The third electromagnet is arranged in the box body;

[0048] When the third electromagnet is not powered, the support plate is located at a low point position under the action of the third spring; when the third electromagnet is powered, the bottom plate moves upward, driving the support plate to move to a high point position to support and lift the circuit board.

[0049] The beneficial effects of the present application are as follows:

[0050] (1) By arranging the clamping assembly driving device, the first spacing adjusting device and the second spacing adjusting device, the support of the present application can simultaneously match the length and width of the circuit board for flexible adjustment; the clamping assembly driving device can synchronously drive the first clamping assembly and the second clamping assembly to move towards or away from each other to adapt to circuit boards of different lengths; and the first spacing adjusting device and the second spacing adjusting device can respectively adjust the spacing between the two clamping assemblies on each side to adapt to circuit boards of different widths;

[0051] (2) The rotating mechanism can drive the entire frame body and the circuit board fixed on the frame body to accurately rotate around the rotation center line within the range of 0° to 180°, so that the circuit board can be easily adjusted to the optimal processing inclination angle, facilitating the surface mounting work of the staff; especially for double-sided circuit boards, only 180° rotation is needed to complete the turning over, realizing efficient double-sided continuous surface mounting work in a single work station, saving the cumbersome steps of disassembly, turning over and repositioning in traditional processing, and significantly improving the production efficiency;

[0052] (3) The support bracket can be moved to the lower side of the circuit board to provide stable support, facilitating the placement of the circuit board by a mechanical hand or manually; after the circuit board is clamped and fixed, the support bracket can be lowered and moved away, completely exposing the back of the circuit board, thereby providing an unobstructed operation space for subsequent processing (especially back surface SMT operation after turning over). BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 is the overall structure diagram of the adjustable circuit board processing support of the present application;

[0054] Figure 2 is Figure 1 is the structure view of the middle frame body (part of the plate is omitted) and each component installed on the frame body;

[0055] Figure 3 is Figure 2 is the bottom view of

[0056] Figure 4 is an enlarged view of the first clamping assembly in the present application;

[0057] Figure 5 is an enlarged view of the second clamping assembly in the present application;

[0058] Figure 6 is the internal structure of the support bracket in the present application. DETAILED DESCRIPTION

[0059] The present application will be further described in detail below in conjunction with specific embodiments, but the implementation manner of the present application is not limited thereto.

[0060] The present application provides an adjustable circuit board processing support, which comprises a rotating mechanism 100, a frame body 200, a first clamping assembly 310, a second clamping assembly 320 and a clamping assembly driving device 400.

[0061] Referring to Figure 1 , the axis of the rotating part of the rotating mechanism 100 is the rotation center line 1a, which extends along the horizontal direction and is higher than the ground by a predetermined distance.

[0062] Referring to Figure 1 , the frame body 200 is fixedly connected with the rotating part of the rotating mechanism 100 and can be driven by the rotating mechanism 100 to rotate around the rotation center line 1a. The predetermined area in the middle of the frame body 200 is used to fix the circuit board, which is defined as the circuit board placement area 2a.

[0063] Referring to Figures 1 to 3 , the first clamping assembly 310 is used to clamp the circuit board placed on the circuit board placement area 2a from one side.

[0064] Referring toFigures 1 to 3 The second clamping assembly 320 is arranged opposite to the first clamping assembly 310, and is used for clamping the circuit board placed on the circuit board placing area 2a from the other side.

[0065] Referring to Figures 1 to 3 The clamping assembly driving device 400 is arranged on the frame body 200, and is used for driving the first clamping assembly 310 and the second clamping assembly 320 to move synchronously towards or away from each other, so that the first clamping assembly 310 and the second clamping assembly 320 can be adjusted to positions suitable for the size of the circuit board after the circuit board is placed on the circuit board placing area 2a.

[0066] In the present application, the distance between the first clamping assembly 310 and the second clamping assembly 320 can be adjusted steplessly between 50 mm and 600 mm, so as to be suitable for circuit boards of various sizes in the range.

[0067] In a specific embodiment, referring to Figure 1 The adjustable circuit board processing support further comprises a rack 500, and the rotating mechanism 100 is fixed to the rack 500.

[0068] Preferably, the rack 500 comprises a left rack body 510 and a right rack body 520, which are respectively arranged on the left and right sides of the frame body 200 and are fixed to the ground by anchor bolts. The rotating mechanism 100 is fixed to the left rack body 510. The frame body 200 has a rectangular frame structure, and the left side of the frame body 200 is fixedly connected to the rotating part of the rotating mechanism 100, and the right side of the frame body 200 is rotatably connected to the right rack body 520 through a bearing.

[0069] Therefore, the frame body 200 is erected between the left rack body 510 and the right rack body 520, and when the rotating mechanism 100 works, the frame body 200 can be driven to rotate around the rotation center line 1a, so as to adjust the angle of the circuit board a fixed to the circuit board placing area 2a.

[0070] Preferably, the height of the rotation center line 1a from the ground should ensure that the frame body 200 does not collide with the ground during rotation.

[0071] Preferably, the rotating mechanism 100 can be a commonly used rotating platform.

[0072] In a preferred embodiment, referring to Figure 3 The adjustable circuit board processing support further comprises a support bracket 610 and a support bracket driving device 620.

[0073] The support holders 610 are two in number and are arranged on the frame body 200 and are arranged at a height lower than the circuit board placing area 2a. When the circuit board is placed on the circuit board placing area 2a, the support holders 610 are used to support and lift the circuit board from below.

[0074] The support holder driving device 620 is arranged on the frame body 200 and is used to drive the two support holders 610 to move towards each other or away from each other synchronously, so as to adjust the two support holders 610 to appropriate positions to support and lift the circuit board a according to the size of the circuit board a when the circuit board a is placed, or to move the two support holders 610 away from the circuit board a when the circuit board a is fixed.

[0075] That is, in operation, before the circuit board a is placed on the circuit board placing area 2a, the two support holders 610 can be moved towards each other to appropriate positions by the support holder driving device 620 according to the size of the circuit board a; then, when the circuit board a is placed on the circuit board placing area 2a, the two support holders 610 can support and lift the circuit board a from below; subsequently, after the first clamping assembly 310 and the second clamping assembly 320 clamp the two sides of the circuit board a respectively, the support holder driving device 620 can drive the two support holders 610 to move away from each other, so that the two support holders 610 move to the two sides and move away from the circuit board a, so that the back of the circuit board a is exposed.

[0076] The purpose of the above-described movable support holders 610 is mainly to support and lift the circuit board a from below when the circuit board a is placed, so as to facilitate the placement of the circuit board a; after the circuit board a is clamped and fixed by the clamping assemblies, the support holders 610 are no longer used and can be moved to the two sides to expose the back of the circuit board a; in this way, when the surface mounting process is performed on the front of the double-sided circuit board during the processing of the double-sided circuit board, the frame body 200 is rotated by 180° by the rotating mechanism 100, so that the back of the double-sided circuit board faces upwards; at this time, since the two support holders 610 have been moved to the two sides, the back of the circuit board a is not blocked and the surface mounting process can be conveniently performed on the back of the circuit board a.

[0077] In a preferred embodiment, referring to Figure 2 , the adjustable circuit board processing support further comprises a first distance adjusting device 710 and a second distance adjusting device 720.

[0078] The clamping assembly driving device 400 comprises a first motor 410, a first sliding block 420 and a second sliding block 430. The first motor 410 is fixed on the frame body 200. The first sliding block 420 and the second sliding block 430 can move towards each other or away from each other under the drive of the first motor 410.

[0079] The first spacing adjustment device 710 is fixed opposite to the first sliding block 420. The number of the first clamping assemblies 310 is two and they are installed on the first spacing adjustment device 710. The spacing of the two first clamping assemblies 310 can be adjusted by the first spacing adjustment device 710.

[0080] The second spacing adjustment device 720 is fixed opposite to the second sliding block 430. The number of the second clamping assemblies 320 is two and they are installed on the second spacing adjustment device 720. The spacing of the two second clamping assemblies 320 can be adjusted by the second spacing adjustment device 720.

[0081] Therefore, the two sides of the circuit board a are clamped by the two first clamping assemblies 310 and the two second clamping assemblies 320 respectively. When the width dimension of the circuit board a changes, the spacing of the two first clamping assemblies 310 and the two second clamping assemblies 320 can be adjusted by the first spacing adjustment device 710 and the second spacing adjustment device 720 respectively to adapt to the width dimension of the circuit board a, so as to facilitate clamping and fixing. When clamping the circuit board a, the first sliding block 420 and the second sliding block 430 are driven to move towards each other by the first motor 410, so that the first spacing adjustment device 710 and the second spacing adjustment device 720 move towards each other with the first sliding block 420 and the second sliding block 430 respectively. When the first clamping assembly 310 and the second clamping assembly 320 move to the appropriate position, the first motor 410 stops working, and the first clamping assembly 310 and the second clamping assembly 320 start clamping action, so as to clamp the two sides of the circuit board a. When the circuit board needs to be loosened, the first clamping assembly 310 and the second clamping assembly 320 loosen the circuit board a, and then the first sliding block 420 and the second sliding block 430 are driven to move away from each other by the first motor 410, so that the first clamping assembly 310 and the second clamping assembly 320 move away from the circuit board.

[0082] Specifically, referring to Figure 2 , the clamping assembly driving device 400 further comprises a linear guide rail 440, a first double-thread screw rod 450, a first screw rod nut 460 and a second screw rod nut 470.

[0083] The number of the linear guide rails 440 is two. Both of the linear guide rails 440 are fixed on the frame body 200 and are oppositely distributed on both sides of the rotation center line la with the extension direction parallel to the rotation center line la.

[0084] The number of the first sliding blocks 420 is two. Both of the first sliding blocks 420 correspond to each other and are slidably arranged on the two linear guide rails 440 respectively.

[0085] The second slider 430 is two in number, and the two second sliders 430 correspond to each other and are respectively arranged in sliding mode on the two linear guides 440.

[0086] The first double-threaded screw rod 450 is two in number, and the two first double-threaded screw rods 450 are rotatably arranged on the upper portion of the frame body 200, and the two first double-threaded screw rods 450 are respectively located above the two linear guides 440, and the two first double-threaded screw rods 450 are synchronously rotated by the first motor 410 through the synchronous belt and the synchronous wheel. The rotation directions of the threads on the left and right sides of the first double-threaded screw rod 450 are opposite.

[0087] The first screw nut 460 is two in number, and the two first screw nuts 460 are respectively sleeved on the left sides of the two first double-threaded screw rods 450 and are fixedly connected with the corresponding first sliders 420. The two ends of the first distance adjusting device 710 are respectively fixedly arranged on the two first screw nuts 460.

[0088] The second screw nut 470 is two in number, and the two second screw nuts 470 are respectively sleeved on the right sides of the two first double-threaded screw rods 450 and are fixedly connected with the corresponding second sliders 430. The two ends of the second distance adjusting device 720 are respectively fixedly arranged on the two second screw nuts 470.

[0089] In a more specific embodiment, referring to Figure 2 The first distance adjusting device 710 includes a second motor 711, a second double-threaded screw rod 712, and a first guide rod 713. The second motor 711 is fixed on one of the first screw nuts 460. The two ends of the second double-threaded screw rod 712 are rotatably arranged between the two first screw nuts 460 through a first ear plate 714 and a corresponding bearing, and the second double-threaded screw rod 712 is in transmission connection with the output shaft of the second motor 711, and the rotation directions of the threads on the left and right sides of the second double-threaded screw rod 712 are opposite. The first guide rod 713 is fixedly arranged between the two first screw nuts 460, and the first guide rod 713 is not rotatable. The two first clamping assemblies 310 are respectively sleeved on the threads on the left and right sides of the second double-threaded screw rod 712 in threaded mode, and can slide along the first guide rod 713.

[0090] Referring to Figure 2The second spacing adjusting device 720 comprises a third motor 721, a third double-threaded screw rod 722 and a second guide rod 723. The third motor 721 is fixed on one of the second screw rod nuts 470. The third double-threaded screw rod 722 is rotatably installed between the two second screw rod nuts 470 through a second ear plate 724 and corresponding bearings, and the third double-threaded screw rod 722 is in transmission connection with the output shaft of the third motor 721, and the rotation directions of the threads on the left and right sides of the third double-threaded screw rod 722 are opposite. The second guide rod 723 is fixedly installed between the two second screw rod nuts 470, and the second guide rod 723 is not rotatable. The two first clamping assemblies 310 are respectively threadedly sleeved on the threads on the left and right sides of the third double-threaded screw rod 722, and can slide along the second guide rod 723.

[0091] Therefore, when the second motor 711 works, the second double-threaded screw rod 712 can be driven to rotate, and the rotation of the second double-threaded screw rod 712 can in turn drive the two first clamping assemblies 310 to move towards or away from each other, and when moving, the first guide rod 713 plays a guiding role in the moving direction of the first clamping assembly 310. Similarly, when the third motor 721 works, the third double-threaded screw rod 722 can be driven to rotate, and then drive the two second clamping assemblies 320 to move towards or away from each other, and the second guide rod 723 plays a guiding role in the moving direction of the second clamping assembly 320.

[0092] In a preferred embodiment, referring to Figure 4 The first clamping assembly 310 comprises a first clamping plate 311 and a second clamping plate 312, and the first clamping plate 311 and the second clamping plate 312 reduce the spacing by generating magnetism through electrification to clamp the circuit board. Referring to Figure 5 The second clamping assembly 320 comprises a third clamping plate 321 and a fourth clamping plate 322, and the third clamping plate 321 and the fourth clamping plate 322 also reduce the spacing by generating magnetism through electrification to clamp the circuit board.

[0093] Specifically, referring to Figure 4 The first clamping assembly 310 further comprises a first moving body 313, a first guide column 314, a first spring 315, a first electromagnet 316 and a first iron block 317.

[0094] The upper part of the first moving body 313 is threadedly sleeved on the second double-threaded screw rod 712, and the lower part is slidably sleeved on the first guide rod 713. That is, when the second double-threaded screw rod 712 rotates, the first moving body 313 can move along the first guide rod 713.

[0095] The first guide column 314 is two and is arranged at the bottom of the first moving body 313.

[0096] The first clamping plate 311 is arranged at the lower part of the first guide column 314 and is fixed and immovable.

[0097] The second clamping plate 312 is arranged at the upper part of the first guide column 314 and is sleeved on the two first guide columns 314 and can move up and down along the two first guide columns 314.

[0098] The first spring 315 is two, which are respectively sleeved on the two first guide columns 314, and the bottom of the first spring 315 abuts against the upper surface of the first clamping plate 311 and the top abuts against the lower surface of the second clamping plate 312.

[0099] The first electromagnet 316 is arranged on the first clamping plate 311.

[0100] The first iron block 317 is arranged at the bottom of the second clamping plate 312 and corresponds to the first electromagnet 316 in the up-down direction.

[0101] The first clamping plate 311 and the second clamping plate 312 are both made of plastic material of non-ferromagnetic material, and the side of the two clamping plates used for contacting the circuit board a is provided with a silica gel sheet or a rubber sheet, so that elastic contact with the circuit board a can be formed when clamping, instead of rigid contact.

[0102] Therefore, in the initial state, the second clamping plate 312 is at a high position under the action of the first spring 315. When it is needed to clamp the circuit board a, the first electromagnet 316 is powered, and after being powered, the magnetic field formed by the first electromagnet 316 will form an adsorption effect on the first iron block 317, thereby attracting the second clamping plate 312 to move downward (compressing the first spring 315), and after the second clamping plate 312 moves downward, the distance between the first clamping plate 311 and the second clamping plate 312 is reduced, so that clamping action on the circuit board a can be formed. When it is needed to release the circuit board a, the first electromagnet 316 is powered off, and after being powered off, the magnetic field of the first electromagnet 316 disappears, and the first spring 315 pushes the second clamping plate 312 to move upward to the high position.

[0103] Referring to Figure 5 , the second clamping assembly 320 further comprises a second moving body 323, a second guide column 324, a second spring 325, a second electromagnet 326 and a second iron block 327.

[0104] The upper part of the second moving body 323 is threadedly sleeved on the third double-threaded screw rod 722, and the lower part is slidingly sleeved on the second guide rod 723. That is, when the third double-threaded screw rod 722 rotates, the second moving body 323 can move along the second guide rod 723.

[0105] The second guide column 324 is two, and is arranged at the bottom of the second moving body 323.

[0106] The third clamping plate 321 is arranged at the lower part of the second guide column 324, and is fixed and immovable.

[0107] The fourth clamping plate 322 is arranged at the upper part of the second guide column 324, and is sleeved on the two second guide columns 324 and can move up and down along the two second guide columns 324.

[0108] The second spring 325 is two, and is sleeved on the two second guide columns 324 respectively, and the bottom of the second spring 325 is in abutment with the upper surface of the third clamping plate 321, and the top is in abutment with the lower surface of the fourth clamping plate 322.

[0109] The second electromagnet 326 is arranged on the third clamping plate 321.

[0110] The second iron block 327 is arranged at the bottom of the fourth clamping plate 322, and is in correspondence with the second electromagnet 326 up and down.

[0111] The third clamping plate 321 and the fourth clamping plate 322 are both made of plastic material of non-ferromagnetic material, and the side used for contacting the circuit board a of the two clamping plates is provided with a silica gel sheet or a rubber sheet, so that elastic contact with the circuit board a can be formed when clamping, instead of rigid contact.

[0112] Therefore, in the initial state, under the action of the second spring 325, the fourth clamping plate 322 is at a high position. When it is needed to clamp the circuit board a, the second electromagnet 326 is powered, and after power-on, the magnetic field formed by the second electromagnet 326 will form an adsorption effect on the second iron block 327, and then attract the fourth clamping plate 322 to move downward (compress the second spring 325), after the fourth clamping plate 322 moves downward, the spacing between the third clamping plate 321 and the fourth clamping plate 322 is reduced, so that clamping action can be formed on the circuit board a. When it is needed to release the circuit board a, the second electromagnet 326 is powered off, and after power-off, the magnetic field of the second electromagnet 326 disappears, and the second spring 325 pushes the fourth clamping plate 322 to move upward to the high position.

[0113] In a preferred embodiment, referring to Figure 3 , the support bracket driving device 620 comprises a fourth motor 621, a fourth double-threaded screw rod 622, a third screw nut 623 and a fourth screw nut 624.

[0114] The fourth motor 621 is fixed on the frame body 200.

[0115] The fourth double-threaded screw rod 622 is rotatably installed at the lower part of the frame body 200 and is located on both sides of the rotation center line la. The fourth double-threaded screw rod 622 is driven by the fourth motor 621 to rotate synchronously through a synchronous belt and a synchronous wheel. The rotation directions of the threads on the left and right sides of the fourth double-threaded screw rod 622 are opposite.

[0116] The third screw nut 623 is threadedly sleeved on the left side of the fourth double-threaded screw rod 622.

[0117] The fourth screw nut 624 is threadedly sleeved on the right side of the fourth double-threaded screw rod 622.

[0118] One of the support brackets 610 is connected between the two third screw nuts 623 through a first fixed rod 625. The other support bracket 610 is connected between the two fourth screw nuts 624 through a second fixed rod 626.

[0119] The support bracket 610 has the following specific structure.

[0120] Referring to Figure 6 , the support bracket 610 includes a box body 611, a bracket plate 612, a bottom plate 613, a connecting column 614, a third spring 615, a third electromagnet 616, and a third iron block 617.

[0121] The two sides of the box body 611 are fixedly connected with the first fixed rod 625 or the second fixed rod 626.

[0122] The bottom plate 613 is arranged in the box body 611.

[0123] The bracket plate 612 is arranged above the box body 611.

[0124] The connecting column 614 is a plurality of connecting columns 614 that pass through the top surface of the box body 611 and connect the bottom plate 613 and the bracket plate 612. The connecting column 614 can move up and down relative to the box body 611.

[0125] The third spring 615 is arranged in the box body 611 and is sleeved on the connecting column 614. The top of the third spring 615 abuts against the top surface of the box body 611, and the bottom abuts against the bottom plate 613.

[0126] The third electromagnet 616 is arranged in the box body 611 and is fixed to the inner wall of the top surface of the box body 611.

[0127] The third iron block 617 corresponds to the third electromagnet 616 up and down, and is fixed on the upper surface of the bottom plate 613.

[0128] Therefore, in the initial state, the bottom plate 613 is pushed to the low point under the action of the third spring 615, and the supporting plate 612 is also located at the low point position. When it is needed to support the circuit board a, the supporting plate 612 needs to be raised to the high point position. At this time, only the third electromagnet 616 is powered, and the magnetic field formed after the third electromagnet 616 is powered is used to adsorb the third iron block 617 to move upward, so that the bottom plate 613 also moves upward, and then the supporting plate 612 can be moved to the high point position to support the circuit board.

[0129] When working, the first clamping assembly 310 and the second clamping assembly 320 clamp the circuit board b, and the rotating mechanism 100 drives the frame body 200 to rotate around the rotation center line 1a to adjust the angle. The angle can be adjusted in the range of 0°-180° to realize the pitch processing of the circuit board b, and a large adjustment range is ensured. In addition, for the double-sided circuit board, the circuit board can be turned over. After the surface mounting of the front surface is completed, the circuit board can be turned over by 180 degrees to perform the surface mounting of the back surface.

[0130] The taking and placing (i.e., placing in the circuit board placing area 2a or taking out from the circuit board placing area 2a) of the circuit board a is usually completed by the corresponding mechanical hand. Of course, the taking and placing of the circuit board a can also be completed manually. When manually placing, a corresponding and adjustable red laser line can be designed to assist the placing. For example, according to the length dimension of the circuit board a, two parallel red laser lines are emitted. When placing the circuit board a, the two sides of the long side of the circuit board a are aligned with the two red laser lines, so that each circuit board a is placed in the predetermined position.

[0131] The working process of the present application is as follows:

[0132] Step S1: After the system is powered on, the first motor 410 works to drive the first clamping assembly 310 and the second clamping assembly 320 to move away to the maximum distance. At the same time, the fourth motor 621 works to drive the two supporting supports 610 to move to the appropriate position (i.e., to move to the middle region of the circuit board a to stably support the circuit board a from below) according to the length dimension of the circuit board a to be processed. Then, the third electromagnet 616 of the two supporting supports 610 is powered to raise the supporting plate 612 of the two supporting supports 610 to the high point position, and waits for the board.

[0133] Step S2: The circuit board a is accurately sent to the circuit board placing area 2a by the corresponding mechanical arm, and is placed on the two support supports 610, and the board placing operation is completed; of course, this step can also be manually completed by manual operation with the assistance of the red laser line;

[0134] Step S3: After the board is placed, the first motor 410 works to drive the first clamping assembly 310 and the second clamping assembly 320 to move towards each other; when the two clamping plates (i.e., the first clamping plate 311 and the second clamping plate 312) of the first clamping assembly 310 are respectively located on the upper and lower sides of the edges of the circuit board a, and the two clamping plates (i.e., the third clamping plate 321 and the fourth clamping plate 322) of the second clamping assembly 320 are respectively located on the upper and lower sides of the edges of the circuit board a, the first motor 410 stops working;

[0135] Step S4: Then, the third electromagnet 616 of the two support supports 610 is powered off, so that the support plate 612 is lowered to the low point position and no longer supports the circuit board a; subsequently, the first electromagnet 316 of the first clamping assembly 310 and the second electromagnet 326 of the second clamping assembly 320 are simultaneously powered on, so that the second clamping plate 312 of the first clamping assembly 310 and the fourth clamping plate 322 of the second clamping assembly 320 are simultaneously moved downward to clamp and fix the left and right sides of the circuit board a;

[0136] Step S5: After the circuit board a is clamped and fixed, the fourth motor 621 works to drive the two support supports 610 to move away to the two sides, so as not to block the bottom area of the circuit board a; since the support plate 612 has been lowered to the low point position, when the support plate 612 moves away, there is a certain gap between the support plate 612 and the back of the circuit board a, so that the back of the circuit board a is not scratched or collided;

[0137] At the same time that the two support supports 610 move away, the mechanical arm can also release the circuit board a and move away;

[0138] Step S6: Subsequently, the surface mounting process can be performed on the circuit board a; during the process, if the angle of the circuit board a needs to be changed, the frame body 200 can be rotated to the target angle by the rotating mechanism 100;

[0139] If the surface mounting process is performed on a double-sided circuit board, after the surface mounting on the front side of the circuit board is completed, the frame body 200 can be rotated by 180° by the rotating mechanism 100 to flip the circuit board, and then the surface mounting on the back side can be performed;

[0140] Step S7: After the processing is completed, the rotating mechanism 100 is reset to 0°; then, the mechanical arm is moved to the position of the circuit board a, and the circuit board a is clamped (or the circuit board a is adsorbed by the suction nozzle of the mechanical arm);

[0141] After that, the first electromagnet 316 and the second electromagnet 326 are powered off, so that the first clamping assembly 310 and the second clamping assembly 320 release the circuit board a; then, the first motor 410 is powered on, so that the first clamping assembly 310 and the second clamping assembly 320 move away from the circuit board a in a reverse direction.

[0142] Finally, the manipulator can take away the circuit board a and transfer it to the next process.

[0143] Thus, the surface mounting process of the circuit board is completed, and the subsequent circulation of the above steps can successively complete the surface mounting process of several circuit boards. If the width size of the circuit board changes, the interval of the two first clamping assemblies 310 and the two second clamping assemblies 320 can be adjusted through the second motor 711 and the third motor 721, so that the width of the new circuit board can be adapted. If the length size of the circuit board changes, the interval of the first clamping assembly 310 and the second clamping assembly 320 can be controlled through the first motor 410, so that the length of the new circuit board can be adapted.

[0144] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable circuit board processing bracket, characterized in that, include: A rotating mechanism (100) wherein the axis of the rotating part of the rotating mechanism (100) is a rotation center line (1a), which extends horizontally and is a predetermined distance above the ground; The frame (200) is fixedly connected to the rotating part of the rotating mechanism (100) and can be driven by the rotating mechanism (100) to rotate around the rotation center line (1a); a predetermined area in the middle of the frame (200) is used to fix the circuit board and is defined as the circuit board placement area (2a). The first clamping assembly (310) is used to clamp the circuit board placed on the circuit board placement area (2a) from one side; The second clamping assembly (320) is disposed opposite to the first clamping assembly (310) and is used to clamp the circuit board placed on the circuit board placement area (2a) from the other side; A clamping component driving device (400) is disposed on the frame body (200) for driving the first clamping component (310) and the second clamping component (320) to move synchronously towards or away from each other, and can adjust the first clamping component (310) and the second clamping component (320) to a position that is compatible with the size of the circuit board after the circuit board is placed in the circuit board placement area (2a).

2. The adjustable support for processing a circuit board according to claim 1, wherein The adjustable circuit board processing support also includes a frame (500), and the rotating mechanism (100) is fixed on the frame (500).

3. The adjustable support for processing a circuit board according to claim 2, wherein The adjustable circuit board processing bracket also includes a support bracket (610) and a support bracket driving device (620). The number of the support brackets (610) is two and they are disposed on the frame body (200), and their height is lower than that of the circuit board placement area (2a); when the circuit board is placed in the circuit board placement area (2a), the support brackets (610) are used to support and lift the circuit board from below; The support bracket driving device (620) is disposed on the frame body (200) and is used to drive the two support brackets (610) to move synchronously towards each other or away from each other, so as to adjust the two support brackets (610) to a suitable position to support and lift the circuit board according to the size of the circuit board when placing the circuit board, or to make the two support brackets (610) avoid the circuit board when the circuit board is fixed.

4. The adjustable support for processing a circuit board according to claim 3, wherein The adjustable circuit board processing bracket also includes a first spacing adjustment device (710) and a second spacing adjustment device (720). The clamping component driving device (400) includes a first motor (410), a first slider (420), and a second slider (430); the first motor (410) is fixed on the frame (200); the first slider (420) and the second slider (430) can move towards each other or away from each other under the drive of the first motor (410); The first spacing adjustment device (710) is fixed opposite to the first sliding block (420); the number of the first clamping assemblies (310) is two and they are installed on the first spacing adjustment device (710), and the spacing of the two first clamping assemblies (310) can be adjusted by the first spacing adjustment device (710); The second spacing adjustment device (720) is fixed opposite to the second sliding block (430); the number of the second clamping assemblies (320) is two and they are installed on the second spacing adjustment device (720), and the spacing of the two second clamping assemblies (320) can be adjusted by the second spacing adjustment device (720).

5. The adjustable support for processing a circuit board according to claim 4, wherein The clamping assembly driving device (400) further comprises a linear guide rail (440), a first double-thread screw rod (450), a first screw nut (460) and a second screw nut (470); The linear guide rail (440) is fixed on the frame body (200), and the first sliding block (420) and the second sliding block (430) are both slidingly installed on the linear guide rail (440); The first double-thread screw rod (450) is rotatably installed on the frame body (200) and is driven to rotate by the first motor (410); and the rotation directions of the threads on the left and right sides of the first double-thread screw rod (450) are opposite; The first screw nut (460) is threadedly sleeved on the left side of the first double-thread screw rod (450) and is fixedly connected with the first sliding block (420), and the first spacing adjustment device (710) is fixedly installed on the first screw nut (460); The second screw nut (470) is threadedly sleeved on the right side of the first double-thread screw rod (450) and is fixedly connected with the second sliding block (430), and the second spacing adjustment device (720) is fixedly installed on the second screw nut (470).

6. The adjustable support for processing a circuit board according to claim 5, wherein The number of the linear guide rails (440) is two, and the two linear guide rails (440) are oppositely distributed on the two sides of the rotation center line (1a) and extend in parallel with the rotation center line (1a); The number of the first sliding blocks (420) is two, and the two first sliding blocks (420) correspond to each other and are respectively arranged on the two linear guide rails (440); The number of the second sliding blocks (430) is two, and the two second sliding blocks (430) also correspond to each other and are respectively arranged on the two linear guide rails (440); The number of the first double-thread screw rods (450) is two, and the two first double-thread screw rods (450) are respectively located above the two linear guide rails (440), and the two first double-thread screw rods (450) are driven to synchronously rotate by the first motor (410); The first screw nut (460) is two in number, and the two first screw nuts (460) are respectively sleeved on the left sides of the two first double-threaded lead screws (450) and fixedly connected with the corresponding first sliders (420); and the two ends of the first distance adjusting device (710) are respectively fixedly installed on the two first screw nuts (460); The second screw nut (470) is two in number, and the two second screw nuts (470) are respectively sleeved on the right sides of the two first double-threaded lead screws (450) and fixedly connected with the corresponding second sliders (430); and the two ends of the second distance adjusting device (720) are respectively fixedly installed on the two second screw nuts (470).

7. The adjustable support for processing a circuit board according to claim 6, wherein The first distance adjusting device (710) comprises a second motor (711), a second double-threaded lead screw (712) and a first guide rod (713); the second motor (711) is fixed on one of the first screw nuts (460); the second double-threaded lead screw (712) is rotatably installed between the two first screw nuts (460) and in transmission connection with the output shaft of the second motor (711), and the rotation directions of the threads on the left and right sides of the second double-threaded lead screw (712) are opposite; and the first guide rod (713) is fixedly installed between the two first screw nuts (460); wherein the two first clamping assemblies (310) are respectively threadedly sleeved on the threads on the left and right sides of the second double-threaded lead screw (712) and can slide along the first guide rod (713); The second distance adjusting device (720) comprises a third motor (721), a third double-threaded lead screw (722) and a second guide rod (723); the third motor (721) is fixed on one of the second screw nuts (470); the third double-threaded lead screw (722) is rotatably installed between the two second screw nuts (470) and in transmission connection with the output shaft of the third motor (721), and the rotation directions of the threads on the left and right sides of the third double-threaded lead screw (722) are opposite; and the second guide rod (723) is fixedly installed between the two second screw nuts (470); wherein the two second clamping assemblies (320) are respectively threadedly sleeved on the threads on the left and right sides of the third double-threaded lead screw (722) and can slide along the second guide rod (723).

8. The adjustable support for processing a circuit board according to any one of claims 1 to 7, wherein The first clamping assembly (310) comprises a first clamping plate (311) and a second clamping plate (312), and the first clamping plate (311) and the second clamping plate (312) are arranged in a manner that the distance between them is reduced by generating magnetism through electrification to clamp the circuit board; The second clamping assembly (320) comprises a third clamping plate (321) and a fourth clamping plate (322), and the third clamping plate (321) and the fourth clamping plate (322) are also arranged in a manner that the distance between them is reduced by generating magnetism through electrification to clamp the circuit board.

9. The adjustable support for processing a circuit board according to any one of claims 3 to 7, wherein The support bracket driving device (620) comprises a fourth motor (621), a fourth double-threaded screw rod (622), a third screw nut (623) and a fourth screw nut (624); The fourth motor (621) is fixed on the frame body (200); The fourth double-threaded screw rod (622) is rotatably installed at the bottom of the frame body (200) and is driven to rotate by the fourth motor (621), and the rotation directions of the threads on the left and right sides of the fourth double-threaded screw rod (622) are opposite; The third screw nut (623) is threadedly sleeved on the left side of the fourth double-threaded screw rod (622); The fourth screw nut (624) is threadedly sleeved on the right side of the fourth double-threaded screw rod (622); One of the support brackets (610) is fixedly connected with the third screw nut (623) through a first fixing rod (625), and the other support bracket (610) is fixedly connected with the fourth screw nut (624) through a second fixing rod (626).

10. The adjustable support for processing a circuit board according to any one of claims 3 to 7, wherein The support bracket (610) comprises a box body (611), a bracket plate (612), a bottom plate (613), a connecting column (614), a third spring (615) and a third electromagnet (616); The box body (611) is fixedly connected with the first fixing rod (625) or the second fixing rod (626); The bottom plate (613) is arranged in the box body (611); The bracket plate (612) is arranged above the box body (611) outside; The connecting column (614) penetrates through the top surface of the box body (611) and connects the bottom plate (613) and the bracket plate (612); The third spring (615) is located in the box body (611) and is sleeved on the connecting column (614), and the top of the third spring (615) abuts against the top surface of the box body (611) and the bottom abuts against the bottom plate (613); The third electromagnet (616) is arranged in the box body (611); When the third electromagnet (616) is not powered, the bracket plate (612) is located at a low point position under the action of the third spring (615); when the third electromagnet (616) is powered, the bottom plate (613) moves upward and drives the bracket plate (612) to move to a high point position to support and hold the circuit board.

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