Grinding device for SMT patch processing

Abstract

The invention relates to the field of SMT patch processing, in particular to a grinding device for SMT patch processing, which comprises a grinding box, a grinding mechanism, a conveying mechanism and a limiting mechanism are mounted in the grinding box, the conveying mechanism is used for conveying a PCB (printed circuit board), the grinding mechanism comprises a grinding rod and a moving assembly, the moving assembly is arranged above the conveying mechanism, and the limiting mechanism is arranged above the grinding rod. The grinding rod is installed in the moving assembly, the grinding rod is used for abutting against components on the PCB, the limiting mechanism is used for limiting the PCB, the situation that in a traditional mode, the processing effect of SMT patches is poor is improved, and the purpose of improving the processing effect of the SMT patches can be achieved.

Description

Technical Field

[0001] The present application relates to the field of SMT patch processing, and in particular to a grinding device for SMT patch processing. Background Art

[0002] SMT patch refers to the abbreviation of a series of process flows based on PCB, PCB is a printed circuit board. SMT is surface mount technology (surface mount technology), which is the most popular technology and process in the electronic assembly industry. The basic process elements of SMT include: silk screen (or dispensing), mounting (curing), reflow soldering, cleaning, testing, and rework.

[0003] In the process of screen printing and mounting, glue or solder paste is usually applied to the mounting position of the components on the PCB board first, and then the components are directly attached to the corresponding positions of the PCB board, and then the mounted components are cured.

[0004] However, in such a manner, the glue or solder paste between the components and the PCB board is often unevenly distributed, resulting in poor reliability of the connection between the components and the PCB board, thereby causing poor processing effect of the SMT patch. Summary of the invention

[0005] In order to improve the processing effect of SMT patches, the present application provides a grinding device for SMT patch processing.

[0006] The present application provides a grinding device for SMT patch processing, which adopts the following technical solution: A grinding device for SMT patch processing comprises a grinding box, wherein a grinding mechanism, a conveying mechanism and a limiting mechanism are installed in the grinding box, wherein the conveying mechanism is used to convey a PCB board, wherein the grinding mechanism comprises a grinding rod and a moving assembly, wherein the moving assembly is arranged above the conveying mechanism, wherein the grinding rod is installed in the moving assembly, and wherein the grinding rod is used to contact components on the PCB board, and wherein the limiting mechanism is used to limit the PCB board.

[0007] By adopting the above technical scheme, the PCB board is transported to the grinding mechanism through the conveying mechanism, and then the PCB board is limited by the limiting mechanism, so that the PCB board can be kept stable during the subsequent processing process, and then the grinding rod is driven to move to the component on the PCB board by the moving component, and the grinding rod is pressed against the component, and then the grinding rod is driven to move back and forth by the moving component, so that the grinding rod pushes the component to move back and forth by a certain amplitude through friction, thereby grinding the glue or solder paste, so that the glue or solder paste between the component and the PCB board is evenly applied to the surface of the component and the surface of the PCB board, thereby increasing the contact area between the glue or solder paste and the component and the PCB board, so as to improve the reliability of the connection between the component and the PCB board in the subsequent curing process, thereby improving the processing effect of the SMT patch.

[0008] In a specific possible implementation scheme, the conveying mechanism includes a conveying table, a conveying belt, a conveying roller and a conveying motor. The conveying table is arranged in a grinding box, the conveying roller is installed on the conveying table, a plurality of conveying rollers are provided, and the plurality of conveying rollers are arranged along the length direction of the conveying table, the conveying motor is installed on the conveying table, and the output shaft of the conveying motor is connected to one of the conveying rollers, the conveying belt connects the plurality of conveying rollers, and the conveying belt is used to convey PCB boards.

[0009] By adopting the above technical solution, the conveying roller is driven to rotate by the conveying motor, so that the conveying roller drives the conveyor belt to operate, so that the PCB board transported to the conveying table can be smoothly transported to the limiting mechanism, so that the limiting mechanism can limit the PCB board, thereby facilitating subsequent processing.

[0010] In a specific feasible implementation scheme, the limiting mechanism includes a control component, a lifting component and a clamping component, the control component includes a control panel, a top block, a push spring and a touch button, a limiting guide rail is installed on the conveying platform, the limiting guide rail is arranged along the length direction of the conveying platform, and the limiting guide rail is located below the conveying plane on the conveyor belt, the end of the control panel is slidably installed in the limiting guide rail, a push plate is installed on the control panel, and the upper end of the push plate extends upward to the conveying plane of the conveyor belt, the top block is rotatably installed on the conveying platform, the top block is located below the control panel, and one end of the top block abuts against the bottom wall of the control panel, and an avoidance hole is also provided on the control panel, the avoidance hole is used for the top block to pass through, the push spring and the touch button are both installed on the conveying platform, and one end of the push spring is connected to the bottom wall of the top block, one end of the touch button is also connected to the bottom wall of the top block, the touch button is also connected to an external control system, the lifting component and the clamping component are both installed on the conveying platform, and the conveying component and the clamping component are both connected to an external control system.

[0011] By adopting the above technical solution, when the PCB board is transported to the control assembly, the end of the PCB board pushes the push plate to move, so that the push plate drives the control board to move, so that the control board is separated from the top block, and the top block rotates upward under the action of the push spring, so that the PCB board is lifted up, so that the PCB board is separated from the conveyor belt, so as to facilitate the positioning of the PCB board. And under the action of the touch button and the external control system, the lifting assembly lifts the PCB board, and clamps the PCB board through the clamping assembly, so as to facilitate the stability of the PCB board when the grinding mechanism is working.

[0012] In a specific feasible implementation manner, a raised portion is provided at the upper end of the top block, a roller is installed on the top block at the raised portion, the roller is used to abut against the bottom wall of the control board or the bottom wall of the PCB board, a pushing slope is provided at one end of the top block away from the rotating axis of the top block, and one end of the pushing slope is located at the roller on the top block, the other end of the pushing slope is inclined downwardly and extends away from the rotating axis of the top block to the bottom wall of the top block, and the pushing slope is used to abut against the bottom wall of the control board.

[0013] By adopting the above technical solution, by setting the roller, the top block can roll along the bottom wall of the PCB board through the roller when lifting the PCB board, thereby reducing the friction between the top block and the PCB board, thereby reducing the damage to the PCB board. And when the top block needs to be reset, the driving control board can resist the pushing inclined surface of the top block, so that the top block can be driven to rotate downward, thereby facilitating the reset of the top block.

[0014] In a specific possible implementation scheme, the lifting assembly includes a first lifting motor, a first lifting plate, a first lifting block, a second lifting motor, a second lifting plate, a second lifting block and a reset member, the first lifting motor and the second lifting motor are both installed in the conveying platform, and the first lifting motor and the second lifting motor are both located below the conveyor belt, the first lifting plate is installed on the output end of the first lifting motor, the second lifting plate is installed on the output end of the second lifting motor, the first lifting block is installed on the first lifting plate, the second lifting block is installed on the second lifting plate, and the first lifting block and the second lifting block are installed on the first lifting plate. The lifting blocks are all located below the conveyor belt, and the distance between the first lifting block and the second lifting block is greater than the length of the PCB board. A lifting hole for the first lifting block to pass through is opened on the control board. A first support plate is installed on the side wall of the first lifting block close to the second lifting block, and the first support plate is used to support one end of the PCB board. A second support plate is installed on the side wall of the second lifting block close to the first lifting block, and the second support plate is used to support the other end of the PCB board. The second lifting block is also connected to the clamping assembly, and the reset member is installed on the first lifting plate, and the reset member is connected to the control board.

[0015] By adopting the above technical solution, when the PCB board is lifted up by the top block, the first lifting plate is driven to rise by the first lifting motor, so that the first lifting plate drives the first lifting block to move upward, so that the first lifting block drives the first support plate to lift one end of the PCB board upward, and at the same time, the second lifting plate is driven to move upward by the second lifting motor, so that the second lifting plate drives the second lifting block to move upward, so that the second lifting block drives the second support plate to lift the other end of the PCB board upward, thereby lifting the PCB board, so as to facilitate subsequent grinding work. At the same time, the first lifting plate also drives the reset member to move, so that the reset member pushes the control board to reset, so that the control board drives the top block to rotate downward to reset, so that the PCB board is re-conveyed to the conveyor belt after processing.

[0016] In a specific possible implementation scheme, the reset member includes a reset block, which is mounted on the first lifting plate and is located on a side of the first lifting block away from the second lifting block. The cross-section of the reset block is a right triangle, and the hypotenuse of the reset block is located close to the first lifting block. The hypotenuse of the reset block is used for the end of the control board to contact.

[0017] By adopting the above technical solution, when the first lifting plate drives the reset block to move upward, the hypotenuse of the reset block moves upward relative to the control plate, so that the end of the control plate slides along the hypotenuse of the reset block, thereby moving the control plate away from the reset block, thereby realizing the reset of the control plate, and pushing the top block to rotate downward through the control plate, thereby facilitating the reset of the top block.

[0018] In a specific feasible implementation scheme, the clamping assembly includes a back plate, a clamping spring and a clamping block, the back plate is installed on the conveying table, and the back plate is located below the conveying plane of the conveyor belt, and one end of the back plate extends to the second lifting block, the second lifting block is slidably connected to the second lifting plate, the clamping block is installed on the side wall of the second lifting block close to the back plate, and the cross-section of the clamping block is also a right triangle, and the vertex of the clamping block is located on the top wall of the second lifting block, the hypotenuse of the clamping block is used to contact the end of the back plate, the clamping spring is installed on the second lifting plate, and the clamping spring is also connected to the second lifting block.

[0019] By adopting the above-mentioned technical solution, when the second lifting plate moves upward, the second lifting plate drives the clamping block to move upward, so that the clamping block moves upward relative to the abutment plate, so that the oblique edge of the clamping block slides along the end of the abutment plate, so that the clamping block drives the second lifting block to move away from the abutment plate and compresses the clamping spring, thereby reducing the distance between the first lifting block and the second lifting block until the first lifting block and the second lifting block respectively contact the two ends of the PCB board, thereby clamping the PCB board, thereby facilitating the stability of the PCB board.

[0020] In a specific possible implementation scheme, a pressing member is installed on the side wall of the first lifting block, and the pressing member includes a pressing plate. The pressing plate is located below the first supporting plate, and one end of the pressing plate extends to below the push plate. A pull rod is installed on the control panel at the push plate, and the pressing plate is used to press down the pull rod.

[0021] By adopting the above technical solution, when the PCB board is processed, and the first lifting motor drives the first lifting plate to descend, the first lifting plate drives the first lifting block to descend, so that the first lifting block drives the pressure plate to descend, so that the pressure plate contacts the pull rod located at the push plate, thereby pulling the pull rod downward, thereby driving the part of the control board where the push plate is installed to bend downward, thereby moving the upper end of the push plate to the bottom of the conveyor belt, so that when the first pallet lowers the PCB board onto the conveyor belt, the upper end of the push plate is separated from the bottom wall of the PCB board, thereby facilitating the conveyor belt to transport the PCB board to the next process.

[0022] In a specific feasible implementation scheme, the moving component includes a lifting member and a translation member, the translation member includes a first electric cylinder and a second electric cylinder, the first electric cylinder is installed in a grinding box, and the first electric cylinder is located above a conveying mechanism, the second electric cylinder is installed on the output end of the first electric cylinder, and the axis of the second electric cylinder is perpendicular to the axis of the first electric cylinder, the lifting member is installed on the output end of the second electric cylinder, and the grinding rod is installed on the lifting member.

[0023] By adopting the above technical solution, the first electric cylinder drives the second electric cylinder to move, thereby driving the lifting member to move, and the second electric cylinder drives the lifting member to move, so as to facilitate moving the lifting member and the grinding rod to the top of the components on the PCB board, so that the grinding rod can contact the top wall of the component, thereby pushing the component, so as to facilitate evenly spreading the glue or solder paste between the component and the PCB board.

[0024] In a specific feasible implementation scheme, the lifting member includes a lifting motor, which is mounted on the output end of the second electric cylinder and the output end of the lifting motor extends downward, one end of the grinding rod is mounted on the output end of the lifting motor and the other end of the grinding rod extends downward, and the lower end of the grinding rod is used to contact components on the PCB board in the conveying mechanism.

[0025] By adopting the above technical solution, when the grinding plate is located above the components on the PCB, the grinding rod is driven down by the lifting motor, so that the lower end of the grinding rod contacts the top wall of the component, thereby facilitating the grinding rod to push the component back and forth through friction, thereby facilitating the even spreading of the glue or solder paste between the component and the PCB.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The present application sets a grinding mechanism to facilitate pushing the components on the PCB board to move back and forth within a certain range through the grinding mechanism, thereby grinding the glue or solder paste between the components and the PCB board, so that the glue or solder paste can be evenly applied to the components and the PCB board, thereby facilitating improving the reliability of the connection between the components and the PCB board, thereby facilitating improving the processing technology of SMT patches.

[0027] 2. The present application sets a limit mechanism to facilitate the limit clamping of the PCB board through the limit mechanism, so that the grinding mechanism can maintain the stability of the PCB board when pushing the components on the PCB board to move, thereby facilitating the glue or solder paste between the components and the PCB board to be evenly spread. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the grinding device used for SMT patch processing in this application.

[0029] Figure 2 It is a schematic diagram of the structure of the grinding mechanism in the embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the structure of the limiting mechanism in the embodiment of the present application.

[0031] Figure 4 It is a schematic diagram of the structure of the control component in the embodiment of the present application.

[0032] Figure 5 It is a schematic diagram of the structure of the lifting assembly in an embodiment of the present application.

[0033] Figure 6 It is a schematic diagram of the structure of the control board in the embodiment of the present application.

[0034] Figure 7 It is a schematic diagram of the embodiment of the present application when the top block lifts up the PCB board.

[0035] Figure 8 It is a schematic diagram of the structure of the lower pressing member in the embodiment of the present application.

[0036] Fig. 9 It is a top view of the push plate moving into the slot in the first lifting block in the embodiment of the present application.

[0037] Fig.10 It is a schematic diagram of the PCB board being transported to the contact push plate in the embodiment of the present application.

[0038] Fig.11 It is an exploded view of the clamping assembly in the embodiment of the present application.

[0039] Description of reference numerals: 1. Grinding box; 2. Grinding mechanism; 21. Grinding rod; 22. First electric cylinder; 23. Second electric cylinder; 24. Lifting motor; 3. Conveying mechanism; 31. Conveying platform; 32. Conveying belt; 33. Conveying roller; 34. Conveying motor; 4. Limiting mechanism; 41. Control assembly; 411. Control panel; 4111. Avoidance hole; 4112. Lifting hole; 412. Ejecting block; 4121. Pushing slope; 413. Pushing spring; 414. Touch button; 415. Limiting guide rail; 416, push plate; 42, lifting assembly; 421, first lifting motor; 422, first lifting plate; 423, first lifting block; 4231, first support plate; 4232, slot; 424, second lifting motor; 425, second lifting plate; 426, second lifting block; 4261, second support plate; 427, reset block; 428, pressure plate; 429, pull rod; 43, clamping assembly; 431, butt plate; 432, clamping spring; 433, clamping block; 434, slider. DETAILED DESCRIPTION

[0040] The present application is further described in detail below in conjunction with the accompanying drawings.

[0041] The present application embodiment discloses a grinding device for SMT patch processing, referring to Figure 1 and Figure 2 , including a grinding box 1, in which a grinding mechanism 2, a conveying mechanism 3 and a limiting mechanism 4 are installed. The conveying mechanism 3 is used to convey the PCB board. The grinding mechanism 2 is located above the conveying mechanism 3, and the grinding mechanism 2 is used to contact the components on the PCB board. The limiting mechanism 4 is located on the conveying mechanism 3, and the limiting mechanism 4 is used to limit the PCB board in the conveying mechanism 3.

[0042] Reference Figure 2 The conveying mechanism 3 includes a conveying platform 31, a conveying belt 32, a conveying roller 33 and a conveying motor 34. The conveying platform 31 is fixedly installed in the grinding box 1, and the conveying platform 31 is arranged along the length direction of the grinding box 1. The conveying belt 32, the conveying roller 33 and the conveying motor 34 are respectively provided with two groups, and are respectively located on the side walls on both sides of the conveying platform 31. Each group of conveying rollers 33 is provided with a plurality of conveying rollers 33, and the plurality of conveying rollers 33 in the same group are arranged along the length direction of the conveying platform 31, and each conveying roller 33 is rotatably connected to the conveying platform 31. The conveying motor 34 is fixedly installed on the side wall of the conveying platform 31, and the output shaft of the conveying motor 34 is coaxially connected to one end of one of the conveying rollers 33. The conveying belt 32 connects the plurality of conveying rollers 33 in the same group, and the top wall of the conveying belt 32 is a conveying plane for conveying PCB boards.

[0043] Reference Figure 3 and Figure 4The limiting mechanism 4 includes a control component 41, a lifting component 42 and a clamping component 43. The control component 41 includes a control board 411, a top block 412, a push spring 413 and a touch button 414. The side walls on both sides of the conveying platform 31 are fixedly installed with limiting guide rails 415. The limiting guide rails 415 are arranged along the length direction of the conveying platform 31, and the limiting guide rails 415 are located below the conveying plane of the conveyor belt 32. The control board 411 has a certain flexibility, and the control board 411 is slidably connected to the conveying platform 31 through the limiting guide rails 415 along the axial direction of the limiting guide rails 415, and the two ends of the control board 411 in the width direction are respectively located in the limiting guide rails 415 on both sides of the conveying platform 31, and a push plate 416 is fixedly installed on the top wall of the control board 411, and the push plate 416 extends upward to the conveyor belt 32, and the push plate 416 is used to contact the end of the moving PCB board.

[0044] Reference Figure 3 and Figure 4 , two top blocks 412 are provided, and the two top blocks 412 are arranged along the length direction of the conveying platform 31, and the two top blocks 412 are rotatably mounted on the side wall of the conveying platform 31, and the two top blocks 412 are located between the two groups of conveyor belts 32, and the top block 412 is located below the control board 411, and the end of the top block 412 away from the rotation axis of the top block 412 extends along the conveying direction of the conveyor belt 32, and the top wall of the top block 412 away from the rotation axis is provided with an arched portion A roller is rotatably mounted at the arched portion of the top block 412, the axis of the roller is perpendicular to the axis of the length direction of the conveyor table 31, and the roller contacts the bottom wall of the pressing block, and one of the two top blocks 412, which is close to the feeding end of the conveyor belt 32, is located at the end of the control board 411, and a evacuation hole 4111 for the other top block 412 to pass through is provided on the top wall of the control board 411, and the evacuation hole 4111 is used for the roller on the top block 412 to pass through the control board 411. A push inclined surface 4121 is also provided at one end of the top block 412 away from the rotating shaft of the top block 412, one end of the push inclined surface 4121 extends to the roller, and the other end extends obliquely downward to the end of the top block 412, and the push inclined surface 4121 is used to contact the control board 411.

[0045] Reference Figure 4 and Figure 5Two support plates are also fixedly installed on the side walls of the conveying platform 31, and the two support plates are respectively located below the two top blocks 412. Two push springs 413 are provided, and the two push springs 413 correspond to the two top blocks 412 one by one, and the push springs 413 are installed between the support plate and the top block 412, and one end of the push spring 413 is fixedly connected to the top wall of the support plate, and the other end is in contact with the bottom wall of the top block 412, and in the initial state, the push spring 413 is in a compressed state, and the roller on the top block 412 also contacts the bottom wall of the control board 411. Two touch buttons 414 are also provided, and the two touch buttons 414 are respectively fixedly mounted on the top walls of the two support plates, and the two touch buttons 414 correspond one-to-one to the two top blocks 412, and the bottom wall of the top block 412 abuts against the touch button 414, and the touch button 414 is connected to an external control system, and the external control system is connected to the lifting assembly 42. The external control system is a prior art in the field and will not be elaborated here.

[0046] Reference Figure 4 and Figure 5 The lifting assembly 42 includes a first lifting motor 421, a first lifting plate 422, a first lifting block 423, a second lifting motor 424, a second lifting plate 425, a second lifting block 426 and a reset member. The first lifting motor 421 and the second lifting motor 424 both use electric push rods. The electric push rods are the prior art in this field and will not be described in detail here. The first lifting motor 421 and the second lifting motor 424 are both fixedly installed in the conveying platform 31, and the first lifting motor 421 and the second lifting motor 424 are respectively located at the two ends of the control board 411, and the first lifting motor 421 is located between the second motor and the output end of the conveying platform 31, and the output ends of the first lifting motor 421 and the second lifting motor 424 both extend upward. Figure 5 and Figure 6 The first lifting plate 422 is fixedly mounted on the output end of the first lifting motor 421, and the first lifting plate 422 is located below the control board 411, the first lifting block 423 is fixedly mounted on the top wall of the first lifting plate 422, and the first lifting block 423 extends upward to the control board 411, and a lifting hole 4112 is provided on the bottom wall of the control board 411, which passes through the control board 411, and the cross-section of the lifting hole 4112 is in a "concave" shape, and the push plate 416 is located at the lifting hole 4112, and the lifting hole 4112 is used for the first lifting block 423 to pass through, and a first support plate 4231 is fixedly mounted at the upper end of the side wall of the first lifting block 423 close to the top block 412, the first support plate 4231 is used to support one end of the PCB board, and a slot 4232 for the push plate 416 to be plugged in is provided on the side wall of the first lifting block 423.

[0047] Reference Figure 5The second lifting plate 425 is fixedly mounted on the output end of the second lifting motor 424, and the second lifting plate 425 is also located below the control board 411, the second lifting block 426 is slidably mounted on the top wall of the second lifting plate 425, and the upper end of the second lifting block 426 also extends upward to the conveyor belt 32, and the upper end of the side wall of the second lifting plate 425 close to the top block 412 is fixedly mounted with a second support plate 4261, and the second support plate 4261 is used to support the other end of the PCB board.

[0048] Reference Figure 3 and Figure 4 When the PCB board is transported to the conveying table 31 and is driven by the conveyor belt 32 to move in the direction of the push plate 416, when one end of the PCB board moves to contact the push plate 416, the PCB board drives the push plate 416 to move in the direction of the first lifting block 423, so that the push plate 416 drives the control board 411 to slide along the limiting guide rail 415, so that the avoidance hole 4111 on the control board 411 moves to a top block 412 close to the first lifting block 423, and at the same time, one end of the control board 411 close to the second lifting block 426 is separated from a top block 412 close to the second lifting block 426, so that the two top blocks 412 rotate upward and rotate under the action of the push spring 413. Separated from the touch button 414, so that the roller on the top block 412 passes over the conveying plane of the conveyor belt 32 and abuts against the bottom wall of the PCB board, thereby lifting the PCB board and separating the PCB board from the conveyor belt 32. At this time, the end of the PCB board pushes the push plate 416 to the slot 4232 of the first lifting block 423, and the lower end of the pushing slope 4121 on a top block 412 close to the second lifting block 426 is located below the control board 411, and the roller on a top block 412 close to the first lifting block 423 passes through the avoidance hole 4111 and abuts against the PCB board, and the lower end of the pushing slope 4121 on the top block 412 is also located below the avoidance hole 4111.

[0049] Reference Figure 7 When the top block 412 is separated from the touch button 414, the touch button 414 sends an instruction to the external control system, and the external control system sends a work instruction to the lifting component 42, so that the first lifting motor 421 drives the first lifting plate 422 to move upward, so that the first lifting plate 422 drives the first lifting block 423 to move upward, so that the first support plate 4231 on the first lifting block 423 lifts one end of the PCB board. At the same time, the second lifting motor 424 drives the second lifting plate 425 to move upward, so that the second lifting plate 425 drives the second lifting block 426 to move upward, so that the second support plate 4261 on the second lifting block 426 lifts the other end of the PCB board, thereby realizing the horizontal lifting of the PCB board for subsequent grinding work.

[0050] Reference Figure 5 and Figure 7 The reset member includes a reset block 427, which is fixedly mounted on the top wall of the first lifting plate 422, and the reset block 427 is located on the side of the first lifting block 423 away from the push plate 416, and the cross-section of the reset block 427 is a right triangle, and the hypotenuse of the right triangle is located on the side close to the first lifting block 423, and the end of the control board 411 is located between the first lifting block 423 and the reset block 427, and the hypotenuse of the reset block 427 is used to contact the end of the control board 411, and in the initial position, the vertex of the right triangle is located below the conveying plane of the conveyor belt 32.

[0051] Reference Figure 7 and Figure 8 When the first lifting plate 422 drives the first lifting block 423 to rise, the reset block 427 also rises with the first lifting plate 422, and at this time, the end of the control plate 411 is located near the vertex of the reset block 427, so that during the rising process of the reset block 427, the hypotenuse on the reset block 427 contacts the end of the control plate 411 and pushes the control plate 411 away from the reset block 427, so that the control plate 411 drives the push plate 416 to move away from the first lifting block 423, so that the end of the control plate 411 contacts the pushing inclined surface 4121 of a top block 412 close to the second lifting block 426, and slides along the pushing inclined surface 4121 of the top block 412, so that the top block 412 rotates downward to reset and compresses the push spring 413. At the same time, the bottom wall of the avoidance hole 4111 on the control panel 411 contacts the pushing slope 4121 of a top block 412 close to the first lifting block 423, and slides along the pushing slope 4121, thereby pressing the top block 412 downward, causing the top block 412 to rotate downward and compress the pushing spring 413 until the top block 412 contacts the touch button 414 again, causing the touch button 414 to send an instruction to the external control system, and the external control system sends a stop working instruction to the lifting assembly 42, thereby stopping the first lifting motor 421 and the second lifting motor 424 from working. At this time, the roller on the top block 412 contacts the bottom wall of the control panel 411 again.

[0052] Reference Figure 8 and Fig. 9A lower pressing member is also installed on the side wall of the first lifting block 423, and the lower pressing member includes a pressing plate 428, which is fixedly installed on the side wall of the first lifting block 423, and the pressing plate 428 is located below the first supporting plate 4231, and one end of the pressing plate 428 extends to the bottom of the push plate 416 in the direction of the top block 412, and a pull rod 429 is also fixedly installed on the bottom wall of the control board 411 below the push plate 416, and the axis of the pull rod 429 is aligned with the pressing plate The axis of 428 is vertical, and the pull rod 429 is used to interfere with the bottom wall of the pressure plate 428. In the initial position, the pressure plate 428 is located below the control plate 411, and the pull rod 429 is located above the pressure plate 428. A notch for avoiding the pull rod 429 is provided on the pressure plate 428 near the first lifting block 423, and an avoidance groove for avoiding the pressure plate 428 is also provided on the side wall of the control plate 411 at the end of the lifting hole 4112 away from the first lifting block 423.

[0053] Reference Fig. 9 and Fig.10 When the PCB board is transported to the position close to the first lifting block 423, the end of the PCB board pushes the push plate 416 to move, thereby pushing the control board 411 to move, so that the push plate 416 gradually moves to the slot 4232 of the first lifting block 423. At this time, the pull rod 429 below the push plate 416 also moves to the slot 4232 of the first lifting block 423 with the push plate 416, and is located in the notch of the pressure plate 428. At this time, the pull rod 429 is located above the pressure plate 428, and the pull rod 429 and the pressure plate 428 are in a separated state. Then the first lifting motor 421 drives the first lifting block 423 to move upward, so that the first lifting block 423 drives the pressure plate 428 to move upward, so that the pressure plate 428 passes through the notch to the top of the pull rod 429 without contacting the pull rod 429.

[0054] Reference Figure 4 and Figure 8Then, when the first lifting motor 421 drives the first lifting block 423 to descend, the control board 411 is already in the initial position, and at this time, the pull rod 429 is located below the pressing plate 428, which makes the first lifting block 423 drive the pressing plate 428 to press the pull rod 429 when it descends. Since the control board 411 has a certain flexibility, the pull rod 429 and the push plate 416 above the pull rod 429 are pulled downward, so that the position where the pressing plate 428 is connected to the push plate 416 is bent downward and elastically deformed, so that the upper end of the push plate 416 moves downward to below the conveying plane of the conveyor belt 32. Then, as the first lifting block 423 gradually places the PCB board on the conveyor belt 32 through the first support plate 4231, the PCB board can be conveyed to the next process by the conveyor belt 32. Finally, the first lifting motor 421 continues to drive the first lifting block 423 to descend to the initial position, so that the pull rod 429 gradually slides along the bottom wall of the pressure plate 428 to pass over the end of the pressure plate 428, thereby separating the pull rod 429 from the pressure plate 428, and allowing the portion of the pressure plate 428 connected to the push plate 416 to restore elastic deformation, thereby driving the push plate 416 to rotate upward and reset, so that the upper end of the push plate 416 passes over the conveying plane of the conveyor belt 32 again, so that the upper end of the push plate 416 can contact the subsequent PCB board again.

[0055] Reference Figure 3 and Fig.11 The clamping assembly 43 includes a butt plate 431, a clamping spring 432 and a clamping block 433. A slider 434 is fixedly mounted on the bottom wall of the second lifting block 426. A slide groove for the slider 434 to slide is provided on the top wall of the second lifting plate 425. The axis of the slide groove is parallel to the axis of the conveying platform 31. The clamping spring 432 is installed in the slide groove near the top block 412, and one end of the clamping spring 432 abuts against the side wall of the end of the slide groove, and the other end abuts against one end of the slider 434 near the top block 412. The clamping block 433 is fixedly mounted on the side wall of the second lifting block 426 away from the top block 412, and the cross section of the clamping block 433 is also a right triangle, and the hypotenuse of the right triangle extends downward from the upper end of the second lifting block 426 to the direction away from the top block 412 to the top wall of the second lifting plate 425. The push plate 431 is detachably mounted on the side wall of the conveying platform 31, and the push plate 431 is located below the conveying plane of the conveyor belt 32, and one end of the push plate 431 extends to the clamping block 433, and the position of the push plate 431 on the conveying platform 31 is adjustable, and the end of the push plate 431 is used to abut against the bevel of the clamping block 433.

[0056] Reference Fig.10 and Fig.11When the second lifting motor 424 drives the second lifting block 426 to move upward and lift the PCB board, the clamping block 433 rises with the rise of the second lifting block 426, so that the oblique edge of the clamping block 433 abuts against the end of the abutment 431, and the end of the abutment 431 moves downward relative to the clamping block 433, so that the end of the abutment 431 slides along the oblique edge of the clamping block 433, thereby pushing the clamping block 433 in the direction of the clamping spring 432, so that the clamping block 433 drives the second lifting block 426 to move in the direction of the clamping spring 432 and compresses the clamping spring 432, so that the upper end of the second lifting block 426 pushes the PCB board to move in the direction of the first lifting block 423, and makes the end of the PCB board close to the first lifting block 423 abut against the side wall of the first lifting block 423, thereby clamping and limiting the PCB board, so that the PCB board remains stable during subsequent grinding work.

[0057] Reference Fig.10 and Fig.11 When the second lifting motor 424 drives the second lifting block 426 to move downward, the second lifting block 426 also drives the PCB board to move toward the direction of the conveyor belt 32. At this time, the support plate 431 moves upward relative to the clamping block 433, so that the support plate 431 slides upward along the oblique edge of the clamping block 433, so that the end of the support plate 431 gradually separates from the oblique edge of the clamping block 433, so that the second lifting block 426 moves away from the first lifting block 423 under the action of the clamping spring 432, thereby releasing the PCB board for facilitating the transportation of the PCB board.

[0058] Reference Figure 2 The grinding mechanism 2 includes a grinding rod 21 and a moving assembly. The moving assembly includes a lifting member and a translation member. The translation member includes a first electric cylinder 22 and a second electric cylinder 23. The first electric cylinder 22 is fixedly mounted on the inner wall of the grinding box 1, and the first electric cylinder 22 is located above the conveying platform 31, and the axis of the first electric cylinder 22 is perpendicular to the axis of the conveying platform 31. The second electric cylinder 23 is fixedly mounted on the output end of the first electric cylinder 22, and the axis of the second electric cylinder 23 is parallel to the axis of the conveying platform 31. The lifting member includes a lifting motor 24, and the lifting motor 24 also uses an electric push rod. The lifting motor 24 is fixedly mounted on the output end of the second electric cylinder 23 and is located above the conveying platform 31, and the output end of the lifting motor 24 extends downward. The grinding rod 21 is vertically fixedly mounted on the output end of the lifting motor 24, and one end of the grinding rod 21 extends toward the conveying platform 31, and the lower end of the grinding plate is used to contact the components on the PCB board.

[0059] The working principle of the embodiment of the present application is as follows: when the PCB board passes through the previous process, the surface of the PCB board is coated with glue or solder paste, and the corresponding components are attached to the surface of the glue or solder paste, and then the PCB board is transported to the conveying table 31 in the grinding box 1, and the PCB board is conveyed to the limiting mechanism 4 by the conveyor belt 32, and the PCB board is lifted from the conveyor belt 32 by the limiting mechanism 4, and the PCB board is clamped and limited, and then the grinding rod 21 is driven by the moving component to move above the components on the PCB board, and moved downward by the descending member in the moving component, so that the lower end of the grinding rod 21 contacts the top wall of the component, and then the grinding rod 21 is driven by the moving component to make a small horizontal reciprocating movement, so that the grinding rod 21 drives the component to move slightly back and forth, so that the glue or solder paste under the component is evenly applied to the surface of the PCB board and the surface of the component, thereby increasing the contact area between the glue or solder paste and the PCB board and the component, so that in the subsequent welding work, the component can be stably installed on the PCB board.

[0060] When the work of the grinding rod 21 is completed, the limiting mechanism 4 drives the PCB board to descend again onto the conveyor belt 32, and then the conveyor belt 32 transports the PCB board to the next process for processing.

[0061] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grinding device for SMT patch processing, comprising a grinding box (1), characterized in that: The grinding box (1) is provided with a grinding mechanism (2), a conveying mechanism (3) and a limiting mechanism (4); the conveying mechanism (3) is used for conveying a PCB board; the grinding mechanism (2) comprises a grinding rod (21) and a moving assembly; the moving assembly is arranged above the conveying mechanism (3); the grinding rod (21) is installed in the moving assembly, and the grinding rod (21) is used for contacting components on the PCB board; and the limiting mechanism (4) is used for limiting the position of the PCB board.

2. The grinding device for SMT patch processing according to claim 1, characterized in that: The conveying mechanism (3) comprises a conveying platform (31), a conveying belt (32), a conveying roller (33) and a conveying motor (34); the conveying platform (31) is arranged in the grinding box (1); the conveying roller (33) is mounted on the conveying platform (31); a plurality of conveying rollers (33) are provided, and the plurality of conveying rollers (33) are arranged along the length direction of the conveying platform (31); the conveying motor (34) is mounted on the conveying platform (31), and the output shaft of the conveying motor (34) is connected to one of the conveying rollers (33); the conveying belt (32) connects the plurality of conveying rollers (33); and the conveying belt (32) is used for conveying PCB boards.

3. The grinding device for SMT patch processing according to claim 2, characterized in that: The limiting mechanism (4) comprises a control component (41), a lifting component (42) and a clamping component (43); the control component (41) comprises a control panel (411), a top block (412), a push spring (413) and a touch button (414); a limiting guide rail (415) is installed on the conveying platform (31); the limiting guide rail (415) is arranged along the length direction of the conveying platform (31), and the limiting guide rail (415) is located below the conveying plane on the conveyor belt (32); the end of the control panel (411) is slidably installed in the limiting guide rail (415); a push plate (416) is installed on the control panel (411); the upper end of the push plate (416) extends upward to the conveying plane of the conveyor belt (32); the top block (412) is rotatably installed on the conveying platform (31); The top block (412) is located below the control panel (411), and one end of the top block (412) contacts the bottom wall of the control panel (411). The control panel (411) is also provided with an avoidance hole (4111), and the avoidance hole (4111) is used for the top block (412) to pass through. The push spring (413) and the touch button (414) are both installed on the conveying platform (31), and one end of the push spring (413) is connected to the bottom wall of the top block (412), and one end of the touch button (414) is also connected to the bottom wall of the top block (412). The touch button (414) is also connected to an external control system. The lifting component (42) and the clamping component (43) are both installed on the conveying platform (31), and the conveying component and the clamping component (43) are both connected to the external control system.

4. The grinding device for SMT patch processing according to claim 3 is characterized in that: The upper end of the top block (412) is provided with an arched portion, and a roller is installed on the top block (412) at the arched portion, and the roller is used to contact the bottom wall of the control board (411) or the bottom wall of the PCB board. The top block (412) is provided with a push inclined surface (4121) at one end away from the rotation axis of the top block (412), and one end of the push inclined surface (4121) is located at the roller on the top block (412), and the other end of the push inclined surface (4121) is inclined and extends downward to the bottom wall of the top block (412) in a direction away from the rotation axis of the top block (412), and the push inclined surface (4121) is used to contact the bottom wall of the control board (411).

5. The grinding device for SMT patch processing according to claim 3, characterized in that: The lifting assembly (42) includes a first lifting motor (421), a first lifting plate (422), a first lifting block (423), a second lifting motor (424), a second lifting plate (425), a second lifting block (426) and a reset member, wherein the first lifting motor (421) and the second lifting motor (424) are both installed in the conveying platform (31), and the first lifting motor (421) and the second lifting motor (424) are both located below the conveying belt (32), the first lifting plate (422) is installed on the output end of the first lifting motor (421), the second lifting plate (425) is installed on the output end of the second lifting motor (424), the first lifting block (423) is installed on the first lifting plate (422), the second lifting block (426) is installed on the second lifting plate (425), and the first lifting block (423) and the second lifting block (426) are installed on the second lifting plate (425). The blocks (426) are both located below the conveyor belt (32), and the distance between the first lifting block (423) and the second lifting block (426) is greater than the length of the PCB board. The control board (411) is provided with a lifting hole (4112) for the first lifting block (423) to pass through. A first support plate (4231) is installed on the side wall of the first lifting block (423) close to the second lifting block (426), and the first support plate (4231) is used to support one end of the PCB board. A second support plate (4261) is installed on the side wall of the second lifting block (426) close to the first lifting block (423), and the second support plate (4261) is used to support the other end of the PCB board. The second lifting block (426) is also connected to the clamping assembly (43). The reset member is installed on the first lifting plate (422), and the reset member is connected to the control board (411).

6. The grinding device for SMT patch processing according to claim 5, characterized in that: The reset member includes a reset block (427), which is installed on the first lifting plate (422), and the reset block (427) is located on the side of the first lifting block (423) away from the second lifting block (426), and the cross-section of the reset block (427) is a right triangle, and the hypotenuse of the reset block (427) is located close to the first lifting block (423), and the hypotenuse of the reset block (427) is used for the end of the control board (411) to abut.

7. The grinding device for SMT patch processing according to claim 5, characterized in that: The clamping assembly (43) includes a support plate (431), a clamping spring (432) and a clamping block (433), wherein the support plate (431) is installed on the conveying platform (31), and the support plate (431) is located below the conveying plane of the conveyor belt (32), and one end of the support plate (431) extends to the second lifting block (426), and the second lifting block (426) is slidably connected to the second lifting plate (425), and the clamping block (433) is installed on the second lifting plate (425). The lifting block (426) is on the side wall of one side close to the support plate (431), and the cross-section of the clamping block (433) is also a right triangle, and the vertex of the clamping block (433) is located on the top wall of the second lifting block (426), and the hypotenuse of the clamping block (433) is used to contact the end of the support plate (431), and the clamping spring (432) is installed on the second lifting plate (425), and the clamping spring (432) is also connected to the second lifting block (426).

8. The grinding device for SMT patch processing according to claim 5, characterized in that: A pressing member is installed on the side wall of the first lifting block (423), and the pressing member includes a pressing plate (428). The pressing plate (428) is located below the first support plate (4231), and one end of the pressing plate (428) extends to the bottom of the push plate (416). A pull rod (429) is installed on the control panel (411) at the push plate (416), and the pressing plate (428) is used to press down the pull rod (429).

9. The grinding device for SMT patch processing according to claim 1, characterized in that: The moving assembly comprises a lifting member and a translation member, the translation member comprises a first electric cylinder (22) and a second electric cylinder (23), the first electric cylinder (22) is installed in the grinding box (1), and the first electric cylinder (22) is located above the conveying mechanism (3), the second electric cylinder (23) is installed on the output end of the first electric cylinder (22), and the axis of the second electric cylinder (23) is perpendicular to the axis of the first electric cylinder (22), the lifting member is installed on the output end of the second electric cylinder (23), and the grinding rod (21) is installed on the lifting member.

10. The grinding device for SMT patch processing according to claim 9, characterized in that: The lifting member comprises a lifting motor (24), the lifting motor (24) is mounted on the output end of the second electric cylinder (23), and the output end of the lifting motor (24) extends downward, one end of the grinding rod (21) is mounted on the output end of the lifting motor (24), and the other end of the grinding rod (21) extends downward, and the lower end of the grinding rod (21) is used to abut against components on a PCB board in the conveying mechanism (3).

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