A cpu surface cleaning apparatus

Abstract

The present application relates to chip production processing technical field, specifically disclose a kind of CPU surface cleaning equipment, including rack, rotatingly connected with the mounting bracket for installing CPU workpiece in the rack, the first bearing plate and the second bearing plate are slidably connected to the two sides of the inside of the rack, the first bearing plate is installed with brush cleaning mechanism, and the second bearing plate is installed with rubber cleaning mechanism, a servo motor is installed in the inside of the rack, transmission mechanism is arranged between the servo motor and the brush cleaning mechanism and the rubber cleaning mechanism, drive unit is connected between servo motor by intermittent linkage, and transmission part is also provided in the inside of the rack, and transmission part is drivingly connected between drive unit.Cleaning process does not need to disassemble and install again CPU workpiece, but after cleaning is completed on one side, CPU workpiece is passively realized after turning over, and cleaning operation is carried out again, which greatly improves the cleaning efficiency of the cleaning equipment.

Description

Technical Field

[0001] This invention relates to the field of chip manufacturing and processing technology, specifically to a CPU surface cleaning device. Background Technology

[0002] The CPU, also known as a chip, is one of the main components of an electronic computer. Its primary function is to interpret computer instructions and process data in computer software. Once the program is loaded into main memory, the CPU can automatically perform the tasks of fetching instructions from main memory and executing those instructions.

[0003] Before being used in computer equipment, CPUs need to undergo testing to simulate computer operation and assess their dynamic performance, reducing the failure rate during later use. Simultaneously, to improve the accuracy of CPU testing, the CPU surface needs to be cleaned after manufacturing to avoid affecting the accuracy of the testing process. Cleaning equipment is typically used for this cleaning process.

[0004] In existing CPU cleaning equipment, the CPU workpiece is typically installed at a cleaning station, and cleaning is performed using cleaning components on the equipment. For example, Chinese Patent Application No. 202123364726.8, Publication (Announcement) No. CN216679219U, entitled "A Chip Surface Cleaning and Dust Removal Equipment," discloses a chip surface cleaning and dust removal device, including a cleaning cylinder with a cleaning mechanism inside. This cleaning mechanism includes a fixing plate, a groove, and an electric telescopic cylinder. In this patent, multiple chips can be fixed to the inner wall of the cleaning cylinder using chip grooves and rubber clamps. Multiple chips can be cleaned simultaneously using cleaning brushes. After cleaning, the electric telescopic cylinder moves the fixing plate to the right, removing the cleaning mechanism from the cleaning cylinder for convenient cleaning.

[0005] For example, Chinese patent application number 202020536985.0, publication (announcement) number CN212018794U, entitled "A Cleaning Device for Chip Surfaces," discloses a cleaning device for chip surfaces, including a housing. Slide rails are horizontally welded to both sides of the inner wall of the housing. Dovetail sliders slide within the grooves of the slide rails, and a bracket is welded between the dovetail sliders. A threaded through hole is formed in the middle of one side of the housing, and a T-shaped threaded rod is rotatably fitted within the threaded through hole. One end of the threaded portion of the T-shaped threaded rod is fixedly mounted to the vertical portion of the bracket. In this patent, the first and second electrostatic rollers simultaneously clean the chip, effectively cleaning the chip surface and improving chip production efficiency.

[0006] Existing technologies, including the aforementioned patents, can perform CPU cleaning operations to some extent. It is known that during CPU cleaning, a cleaning brush is typically used to remove dust and impurities from the CPU surface. However, when the metal contacts on the chip are oxidized or contaminated and cannot be cleaned with a brush, an eraser is usually used to wipe the metal contacts, removing stains and oxide layers to ensure cleanliness. However, existing technologies can only perform simple cleaning operations to remove dust and impurities from the CPU surface, resulting in limited cleaning capabilities. Therefore, existing technologies propose moving the CPU surface to a secondary cleaning station after initial cleaning to improve the cleaning effect to some extent. However, moving the CPU from the brush cleaning station to the eraser cleaning station requires machine downtime, which affects cleaning efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a CPU surface cleaning device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a CPU surface cleaning device, comprising a frame, an mounting bracket for mounting a CPU workpiece rotatably connected inside the frame, a first support plate and a second support plate slidably connected to opposite sides inside the frame, a brush cleaning mechanism mounted on the first support plate, and an eraser cleaning mechanism mounted on the second support plate, a servo motor mounted inside the frame, and a transmission mechanism provided between the servo motor and both the brush cleaning mechanism and the eraser cleaning mechanism for driving the eraser cleaning mechanism and the brush cleaning mechanism to perform cleaning operations on both sides of the CPU workpiece; The frame is also equipped with a drive unit for driving the first and second support plates to slide towards each other. The drive unit is connected to the servo motor through an intermittent linkage. The frame is also equipped with a transmission part for driving the mounting frame to rotate. The transmission part is connected to the drive unit. First station: When the servo motor rotates forward, the transmission mechanism drives the rubber cleaning mechanism and the brush cleaning mechanism to clean both sides of the CPU workpiece. Second station: When the servo motor rotates in reverse, the transmission part drives the mounting frame to rotate during the stroke in which the first and second support plates move away from each other through the intermittent linkage and the drive unit.

[0009] Furthermore, the transmission unit and the drive unit are connected by an intermittent connection unit; when the drive unit drives the first support plate and the second support plate to move away from each other, the transmission unit drives the mounting frame to rotate through the intermittent connection unit; when the first support plate and the second support plate move closer to each other, the intermittent connection unit cannot drive the mounting frame to rotate and keeps it in a vertical state.

[0010] Furthermore, the drive unit includes a power rod rotatably connected to the frame, an intermittent gear mounted on the power rod, and a transmission rack fixedly connected to the first bearing plate. The intermittent gear and the transmission rack mesh intermittently. The first bearing plate and the second bearing plate are connected by a linkage unit. When the first bearing plate slides, the linkage unit drives the second bearing plate to slide synchronously. Furthermore, reset components are provided between the first bearing plate, the second bearing plate, and the frame.

[0011] Furthermore, the intermittent linkage is installed between the servo motor output shaft and the power rod; the intermittent linkage includes a connecting block fixedly connected to the servo motor output shaft, the connecting block having a toothed groove, a connecting rod fixedly connected to the power rod, the connecting rod being rotatably connected to multiple sets of ratchet teeth via a base, each ratchet tooth being provided with a torque spring between itself and the corresponding base, the elastic force of the torque spring driving the ratchet tooth to engage in the toothed groove.

[0012] Furthermore, the transmission unit includes a first gear rotatably connected to the frame and a second gear mounted on the mounting bracket, wherein the first gear meshes with the second gear; the intermittent connection unit is disposed between the first gear and the power rod.

[0013] Furthermore, the intermittent connection unit includes a bearing ring fixedly connected to the first transmission gear, the bearing ring having multiple sets of wedge-shaped grooves, the power rod having a positioning groove, a limiting rod slidably connected inside the positioning groove, a linkage block fixedly connected to the limiting rod, multiple sets of linkage wedge-shaped teeth fixedly connected to the linkage block, and a connecting spring provided between the limiting rod and the positioning groove, the elastic force of the connecting spring driving each linkage wedge-shaped tooth to engage in the corresponding wedge-shaped groove.

[0014] Furthermore, the transmission mechanism includes a reciprocating lead screw rotatably connected to the first bearing frame; a telescopic transmission component is installed inside the frame, a first gear transmission part is provided between the telescopic transmission component and the output shaft of the servo motor, and a second gear transmission part is provided between the telescopic transmission component and the reciprocating lead screw, for driving the reciprocating lead screw to rotate.

[0015] Furthermore, the telescopic transmission component includes a bearing cylinder, inside which a sliding rod is slidably connected. A limit part is provided between the sliding rod and the bearing cylinder, and a fastening spring is provided between the sliding rod and the bearing cylinder. A pulling frame is fixedly connected to the first bearing frame, and the pulling frame is rotatably connected to the sliding rod.

[0016] Furthermore, the brush cleaning mechanism includes a first support frame, which is threadedly connected to a reciprocating lead screw. A brush cleaning roller is rotatably connected to the first support frame. A passive drive unit is provided between the brush cleaning roller and the first support plate to drive the brush cleaning roller to perform cleaning operations on the CPU workpiece.

[0017] Furthermore, the rubber cleaning mechanism includes a second support frame, which is threadedly connected to another reciprocating screw. A rubber cleaning unit is mounted on the second support frame via a mounting frame. A guide unit is provided between the mounting frame and the second support plate. During the horizontal sliding stroke of the mounting frame driven by the reciprocating screw, the rubber cleaning unit is driven by the guide unit to perform cleaning operations on the CPU workpiece.

[0018] Compared with existing technologies, the advantages of this invention are as follows: During use, when the servo motor rotates forward, the transmission mechanism drives the rubber cleaning mechanism and the brush cleaning mechanism to clean both sides of the CPU workpiece, improving the overall cleaning efficiency. When the servo motor rotates in the reverse direction, the intermittent linkage and drive unit drive the first and second support plates away from each other. During this stroke, the transmission unit drives the mounting bracket to flip. Then, when the servo motor rotates forward again, the rubber cleaning mechanism and the brush cleaning mechanism continue to clean both sides of the CPU workpiece. Therefore, in one cleaning cycle, two different cleaning operations can be performed on both sides of the CPU workpiece: the brush cleaning mechanism cleans dust and impurities from the sidewalls of the CPU workpiece, and the rubber cleaning mechanism cleans stains and oxide layers from the metal contacts on the CPU workpiece. During this cleaning process, it is not necessary to disassemble and reassemble the CPU workpiece. Instead, after cleaning one side, the CPU workpiece is passively flipped for another cleaning operation, greatly improving the cleaning efficiency of the equipment and making it suitable for widespread use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the internal structure of the rack provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the bearing seat provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation method of the first support plate and the second support plate provided in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the working structure of the brush cleaning roller provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the servo motor installation method provided in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the installation method of the reset component provided in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the installation state structure of the linkage unit provided in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the installation method of the rubber cleaning part provided in an embodiment of the present invention;

[0028] Figure 9 for Figure 8 Top view of the structure;

[0029] Figure 10 for Figure 9 Schematic diagram of the structure in sectional view along the AA section;

[0030] Figure 11 This is a schematic diagram of the first and second support frames being far apart and the mounting frame being rotated, provided in an embodiment of the present invention.

[0031] Figure 12 This is a schematic diagram of the intermittent gear working state structure provided in an embodiment of the present invention;

[0032] Figure 13 This is a schematic diagram of the installation method of the servo motor and intermittent linkage component provided in an embodiment of the present invention;

[0033] Figure 14 This is a schematic diagram of the structure of the intermittent linkage in an explosion state provided in an embodiment of the present invention;

[0034] Figure 15 This is a schematic diagram of the exploded state structure of the intermittent connection unit provided in an embodiment of the present invention;

[0035] Figure 16 This is a partial structural diagram of the transmission mechanism provided in an embodiment of the present invention;

[0036] Figure 17 This is a schematic diagram of the exploded state structure of the telescopic transmission component provided in an embodiment of the present invention;

[0037] Figure 18 This is a schematic diagram of the overall structure provided for an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Support base; 3. First support plate; 4. Second support plate; 5. Mounting frame; 6. First support frame; 7. Brush cleaning roller; 8. Spur gear; 9. Drive rack; 10. Transmission mechanism; 10.1. First gear transmission part; 10.2. Reciprocating lead screw; 10.3. Second gear transmission part; 10.4. Telescopic transmission component; 10.41. Support cylinder; 10.42. Sliding rod; 10.43. Limiting part; 10.44. Fastening spring; 10.45. Pulling frame; 11. Servo motor; 12. Second support frame; 13. Mounting frame; 14. Rubber cleaning unit; 15. Guide unit; 15.1. Guide groove; 15.2. Support block; 15.3. 15.4 Positioning spring; 16. Guide rod; 17. Compression spring; 18. Power rod; 19. Intermittent gear; 20. Transmission rack; 20. Intermittent linkage component; 20.1 Connecting rod; 20.2 Racket; 20.3 Tooth groove; 20.4 Connecting block; 21. First speed-changing gear; 22. Second speed-changing gear; 23. Intermittent connection unit; 23.1 Bearing ring; 23.2 Linkage block; 23.3 Wedge groove; 23.4 Linkage wedge tooth; 23.5 Limiting rod; 23.6 Connecting spring; 24. Reset component; 24.1 Dovetail block; 24.2 Reset spring; 25. Linkage unit; 25.1 First rack; 25.2 Second rack; 25.3 Linkage gear. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-18This invention provides a technical solution: a CPU surface cleaning device, including a frame 1, with a mounting bracket 5 for mounting CPU workpieces rotatably connected inside the frame 1. A first support plate 3 and a second support plate 4 are slidably connected to each other on both sides inside the frame 1. A brush cleaning mechanism is mounted on the first support plate 3, and an eraser cleaning mechanism is mounted on the second support plate 4. A servo motor 11 is installed inside the frame 1, and a transmission mechanism 10 is provided between the servo motor 11 and both the brush cleaning mechanism and the eraser cleaning mechanism to drive the eraser cleaning mechanism and the brush cleaning mechanism to perform cleaning operations on both sides of the CPU workpiece. The frame 1 is also equipped with a... The drive unit that drives the first support plate 3 and the second support plate 4 to slide towards each other is connected to the servo motor 11 through an intermittent linkage 20. The frame 1 is also provided with a transmission part for driving the mounting frame 5 to rotate. The transmission part is connected to the drive unit. In the first station, when the servo motor 11 rotates forward, the transmission mechanism 10 drives the rubber cleaning mechanism and the brush cleaning mechanism to clean both sides of the CPU workpiece. In the second station, when the servo motor 11 rotates in reverse, the transmission part drives the mounting frame 5 to rotate during the stroke in which the first support plate 3 and the second support plate 4 move away from each other through the intermittent linkage 20 and the drive unit.

[0041] Specifically, the CPU surface cleaning equipment includes a frame 1. Optionally, anti-slip support legs are provided at the bottom of the frame 1 to improve the stability of the entire cleaning equipment during operation, resulting in better performance. A mounting bracket 5 for mounting CPU workpieces is rotatably connected inside the frame 1. Preferably, the mounting bracket 5 is a hollow frame, with a smaller positioning frame slidably connected inside. The CPU workpiece is mounted inside the hollow frame via the positioning frame. The specific method of mounting the CPU workpiece to the positioning frame is existing technology and will not be elaborated here. The positioning frame and the hollow frame are sized to match, and the hollow frame and the positioning frame have an interference fit when the positioning frame is installed inside the hollow frame, improving the stability of the CPU workpiece during installation and ensuring that the CPU workpiece does not wobble during cleaning. Specifically, in its initial state, the mounting bracket 5 is vertical. Simply insert the positioning frame carrying the CPU workpiece into the mounting bracket 5. A slot is provided on the frame 1 for easy loading and unloading of the CPU workpiece.

[0042] Specifically, a first support plate 3 and a second support plate 4 are slidably connected to each other on both sides inside the frame 1. A brush cleaning mechanism is installed on the first support plate 3, and an eraser cleaning mechanism is installed on the second support plate 4, facilitating simultaneous cleaning of both sides of the CPU workpiece. Specifically, in the initial state, after the CPU workpiece is snapped into the mounting frame 5, the two sides of the CPU workpiece can be side a and side b, respectively. At this moment, in the initial state, after the CPU workpiece is snapped into the mounting frame 5, the brush cleaning mechanism will contact side a of the CPU workpiece, and the eraser cleaning mechanism will contact side b of the CPU workpiece. A servo motor 11 is installed inside the frame 1. A transmission mechanism 10 is provided between the servo motor 11 and both the brush cleaning mechanism and the eraser cleaning mechanism, used to drive the eraser cleaning mechanism and the brush cleaning mechanism to perform cleaning operations on both sides of the CPU workpiece. That is, during operation, the servo motor 11 drives the brush cleaning mechanism to clean the side a of the CPU workpiece via the transmission mechanism 10. Simultaneously, the servo motor 11 also drives the rubber cleaning mechanism to clean the side b of the CPU workpiece via another transmission mechanism 10, greatly improving the overall cleaning efficiency of the CPU workpiece and resulting in better performance. More specifically, the structures and working principles of the two transmission mechanisms 10 are identical and will not be elaborated upon here. A support base 2 is mounted on the frame 1, and the output shaft of the servo motor 11 is rotatably connected to the support base 2. This improves the stability of the servo motor 11 during installation and enhances its stability when providing power, meeting operational requirements.

[0043] The frame 1 is also equipped with a drive unit for driving the first support plate 3 and the second support plate 4 to slide towards each other. The drive unit is connected to the servo motor 11 through an intermittent linkage 20. That is, when the servo motor 11 rotates forward, it drives the brush cleaning mechanism and the rubber cleaning mechanism through the transmission mechanism 10 to clean both sides of the CPU workpiece. It is not connected to the drive unit, so the first support plate 3 and the second support plate 4 are not driven away from each other by the drive unit. After both sides a and b of the CPU workpiece have been cleaned and the cleaning purpose has been achieved, the mounting frame 5 needs to be flipped. More specifically, the mounting frame 5 is flipped 180°, so that the CPU workpiece side a, which was originally in contact with the brush cleaning mechanism, needs to contact the rubber cleaning mechanism. Similarly, the CPU workpiece side b, which was originally in contact with the rubber cleaning mechanism, needs to contact the brush cleaning mechanism. In this way, two different cleaning operations can be performed on both sides of the CPU workpiece in one cleaning process, which greatly improves the cleaning efficiency of the cleaning equipment. Specifically, when the mounting frame 5 needs to be flipped, the first support plate 3 and the second support plate 4 need to be driven away from each other. At this time, the servo motor 11 reverses, and drives the first support plate 3 and the second support plate 4 away from each other through the intermittent linkage 20 and the drive unit. In addition, the frame 1 is also provided with a transmission part for driving the mounting frame 5 to flip. The transmission part is connected to the drive unit to meet the working requirements.

[0044] More specifically, the forward and reverse rotation of the servo motor 11 will produce different work positions;

[0045] First station: When the servo motor 11 rotates forward, the transmission mechanism 10 drives the rubber cleaning mechanism and the brush cleaning mechanism to clean both sides of the CPU workpiece. Specifically, at this moment, the transmission mechanism 10 drives the brush cleaning mechanism to clean side a of the CPU workpiece, and another transmission mechanism 10 drives the rubber cleaning mechanism to clean side b of the CPU workpiece, improving the overall cleaning efficiency of the CPU workpiece. Since the servo motor 11 is connected to the drive unit via an intermittent linkage 20, the servo motor 11 does not drive the drive unit to work when it rotates forward.

[0046] In the second station, when the servo motor 11 reverses, the first support plate 3 and the second support plate 4 are driven away from each other via the intermittent linkage 20 and the drive unit, and the mounting frame 5 is driven to flip via the transmission unit. That is, when the two sides of the CPU workpiece are cleaned by different cleaning mechanisms and the CPU workpiece needs to be flipped for cleaning, the servo motor 11 is driven to rotate in the opposite direction. The first support plate 3 and the second support plate 4 are driven away from each other via the intermittent linkage 20 and the drive unit, and the mounting frame 5 is driven to flip via the transmission unit during this stroke. This causes the side a of the CPU workpiece that was originally in contact with the brush cleaning mechanism to contact the rubber cleaning mechanism. Similarly, the side b of the CPU workpiece that was originally in contact with the rubber cleaning mechanism needs to contact the brush cleaning mechanism. After that, the servo motor 11 rotates forward again, and the brush cleaning mechanism is driven by the transmission mechanism 10 to clean the side b of the CPU workpiece, and the rubber cleaning mechanism is driven by the transmission mechanism 10 to clean the side a of the CPU workpiece.

[0047] Therefore, this invention can perform two different cleaning operations on both sides of the CPU workpiece in one cleaning process. The brush cleaning mechanism cleans dust and impurities on the side wall of the CPU workpiece, and the rubber cleaning mechanism cleans stains and oxide layers on the metal contacts of the CPU workpiece. In this process, it is not necessary to disassemble and reinstall the CPU workpiece. Instead, after cleaning one side, the CPU workpiece is passively flipped over and the cleaning operation is performed again, which greatly improves the cleaning efficiency of the cleaning equipment and is suitable for widespread use.

[0048] In the embodiments provided by this invention, the transmission unit and the drive unit are connected by an intermittent connection unit 23, enabling two different workstations. Specifically, when the drive unit drives the first support plate 3 and the second support plate 4 away from each other, the intermittent connection unit 23 drives the transmission unit to rotate the mounting frame 5, thereby enabling the CPU workpiece to be rotated. This facilitates cleaning operations on the CPU workpiece by different cleaning mechanisms, resulting in better performance. When the first support plate 3 and the second support plate 4 approach each other, the intermittent connection unit 23 cannot drive the mounting frame 5 to rotate, keeping it in a vertical position. This prevents the mounting frame 5 from resetting after the CPU workpiece has been rotated, as the first support plate 3 and the second support plate 4 approach each other, thus facilitating subsequent secondary cleaning operations and meeting work requirements.

[0049] In the embodiments provided by this invention, specifically, the driving unit includes a power rod 17 rotatably connected to the frame 1, an intermittent gear 18 mounted on the power rod 17, and a transmission rack 19 fixedly connected to the first support plate 3. The intermittent gear 18 and the transmission rack 19 intermittently mesh. Specifically, the transmission ratio between the intermittent gear 18 and the transmission rack 19 can be designed to meet the length required for the intermittent gear 18 to drive the transmission rack 19 to slide, and to meet the space required for the rotation of the mounting frame 5. Therefore, during use, when the intermittent gear 18 meshes with the transmission rack 19, the rotation of the power rod 17 will drive the intermittent gear 18 to rotate, which in turn drives the first support plate 3 to slide via the transmission rack 19, thus meeting the working requirements. More specifically, a clearance groove is provided on the second support plate 4, and the transmission rack 19 is slidably connected to the clearance groove, thus meeting the working requirements. Furthermore, the first support plate 3 and the second support plate 4 are connected by a linkage unit 25. When the first support plate 3 slides, the linkage unit 25 drives the second support plate 4 to slide synchronously. At this time, when the first support plate 3 slides under the push of the transmission rack 19, the linkage unit 25 drives the second support plate 4 to slide in the opposite direction, thus meeting the working requirements. Specifically, the linkage unit 25 includes a first rack 25.1 fixedly connected to the first support plate 3, a second rack 25.2 installed on the bottom of the second support plate 4, and a linkage gear 25.3 rotatably connected inside the frame 1. The first rack 25.1 and the second rack 25.2 mesh on both sides of the linkage gear 25.3 respectively to realize the opposite sliding of the first support plate 3 and the second support plate 4.

[0050] In the embodiments provided by the present invention, a reset member 24 is provided between the first support plate 3 and the second support plate 4 and the frame 1. Specifically, multiple sets of dovetail blocks 24.1 are fixedly connected to the first support plate 3 and the second support plate 4, and a dovetail groove is provided on the side wall of the frame 1, wherein the dovetail blocks 24.1 are slidably connected in the dovetail groove. The reset member 24 includes a reset spring 24.2, which is disposed between the dovetail block 24.1 and the dovetail groove. Therefore, after the intermittent gear 18 is not engaged with the transmission rack 19, the elastic force of the reset spring 24.2 drives the first support plate 3 and the second support plate 4 to move closer to each other, which facilitates the cleaning operation of the CPU workpiece again and meets the working requirements.

[0051] In the embodiments provided by this invention, the intermittent linkage 20 is installed between the output shaft of the servo motor 11 and the power rod 17. Specifically, the intermittent linkage 20 includes a connecting block 20.4 fixedly connected to the output shaft of the servo motor 11. The connecting block 20.4 has a toothed groove 20.3. A connecting rod 20.1 is fixedly connected to the power rod 17. The connecting rod 20.1 is rotatably connected to multiple sets of ratchet teeth 20.2 through a base. Each ratchet tooth 20.2 is provided with a torque spring between itself and the corresponding base. The elastic force of the torque spring drives the ratchet tooth 20.2 to engage in the toothed groove 20.3. Therefore, during operation, when the servo motor 11 rotates clockwise, the toothed groove 20.3 abuts against the back of the ratchet tooth 20.2. After being squeezed, the ratchet tooth 20.2 rotates. Therefore, the ratchet tooth 20.2 does not drive the connecting rod 20.1 to rotate, that is, it cannot drive the power rod 17 to rotate. It can only drive the rubber cleaning mechanism and the brush cleaning mechanism to perform cleaning operations through the transmission mechanism 10. When the servo motor 11 rotates counterclockwise, the ratchet 20.2 engages inside the tooth groove 20.3. The ratchet 20.2 drives the connecting rod 20.1 to rotate, which in turn drives the power rod 17 to rotate, providing power for subsequent operations. That is, when the power rod 17 rotates, it drives the intermittent gear 18 to rotate, which in turn drives the first bearing plate 3 to slide through the transmission rack 19, thus meeting the working requirements.

[0052] In the embodiments provided by this invention, the transmission unit includes a first gear 21 rotatably connected to the frame 1, and a second gear 22 mounted on the mounting bracket 5. The first gear 21 and the second gear 22 mesh with each other. An intermittent connection unit 23 is disposed between the first gear 21 and the power rod 17. Specifically, a shaft is fixedly connected to the mounting bracket 5, and the second gear 22 is fixedly connected to the shaft. The shaft is rotatably connected to the bearing seat 2 with built-in damping. The first gear 21 and the second gear 22 have different numbers of teeth and can be designed according to the working environment. The power generated during the sliding stroke of the intermittent gear 18 drives the transmission rack 19 to rotate, which in turn drives the power rod 17 to rotate. When the power rod 17 rotates by a certain angle, it drives the first gear 21 to rotate, which in turn drives the second gear 22 to rotate. In this process, by utilizing the transmission ratio, the rotation of the intermittent gear 18 drives the transmission rack 19 to slide, resulting in the rotation angle of the power rod 17. This, combined with the transmission ratio, allows the second gear 22 to rotate a full revolution, thus enabling the mounting bracket 5 to rotate 180°. The difficulty lies in designing the first gear 21 and the second gear 22 using the transmission ratio. Since the transmission ratio is a publicly available and well-known technology, it will not be elaborated upon here.

[0053] In the embodiments provided by the present invention, the intermittent connection unit 23 includes a bearing ring 23.1 fixedly connected to the first transmission gear 21. The bearing ring 23.1 has multiple sets of wedge-shaped grooves 23.3. The power rod 17 has a positioning groove, and a limiting rod 23.5 is slidably connected inside the positioning groove. Specifically, a limiting strip is provided between the limiting rod 23.5 and the positioning groove, so that the limiting rod 23.5 and the positioning groove can only slide and cannot rotate relative to each other. A linkage block 23.2 is fixedly connected to the limiting rod 23.5, and multiple sets of linkage wedge-shaped locking teeth 23.4 are fixedly connected to the linkage block 23.2. A connecting spring 23.6 is provided between the limiting rod 23.5 and the positioning groove. The elastic force of the connecting spring 23.6 drives each linkage wedge-shaped locking tooth 23.4 to engage in the corresponding wedge-shaped groove 23.3. Specifically, during use, when the power rod 17 rotates, it will drive the limit rod 23.5 to rotate. The rotation of the limit rod 23.5 will drive the linkage wedge tooth 23.4 to rotate. Since the linkage wedge tooth 23.4 is engaged in the wedge groove 23.3, and the straight edge of the linkage wedge tooth 23.4 abuts against the straight edge of the wedge groove 23.3, the linkage wedge tooth 23.4 will drive the bearing ring 23.1 to rotate, which in turn drives the first gear 21 to rotate. The first gear 21 drives the second gear 22 to rotate, thereby realizing the flipping of the mounting bracket 5 to meet the working requirements. When the intermittent gear 18 disengages from the transmission rack 19, the reset member 24 drives the first bearing plate 3 and the second bearing plate 4 to move closer to each other. At this moment, the transmission rack 19 may re-engage with the intermittent gear 18, and the transmission rack 19 drives the intermittent gear 18 and the power rod 17 to rotate. When the power rod 17 rotates, the inclined surface of the linkage wedge tooth 23.4 abuts against the inclined surface of the wedge groove 23.3. During this rotation, the bearing ring 23.1 moves away from the linkage block 23.2, that is, the power rod 17 slides in the opposite direction. At this time, the bearing ring 23.1 will drive the limit rod 23.5 to slide inside the positioning groove, which will ultimately prevent the mounting bracket 5 from rotating, thus keeping the mounting bracket 5 in a vertical state, which is convenient for the subsequent cleaning of the CPU workpiece and meets the working requirements.

[0054] In the embodiments provided by the present invention, the transmission mechanism 10 includes a reciprocating lead screw 10.2 rotatably connected to the first bearing frame 6. A telescopic transmission member 10.4 is installed inside the frame 1. A first gear transmission part 10.1 is provided between the telescopic transmission member 10.4 and the output shaft of the servo motor 11, and a second gear transmission part 10.3 is provided between the telescopic transmission member 10.4 and the reciprocating lead screw 10.2 for driving the reciprocating lead screw 10.2 to rotate. Specifically, the structure and working principle of the two transmission mechanisms 10 are described only here. The telescopic transmission member 10.4 includes a bearing cylinder 10.41. Specifically, the first gear transmission part 10.1 is installed between the bearing cylinder 10.41 and the output shaft of the servo motor 11. A sliding rod 10.42 is slidably connected inside the bearing cylinder 10.41, and the second gear transmission part 10.3 is installed between the sliding rod 10.42 and the reciprocating lead screw 10.2. A limiting part 10.43 is provided between the sliding rod 10.42 and the bearing cylinder 10.41. By providing the limiting part 10.43, it is possible for the sliding rod 10.42 and the bearing cylinder 10.41 to only slide relative to each other, but not rotate relative to each other. A fastening spring 10.44 is provided between the sliding rod 10.42 and the bearing cylinder 10.41. A pulling frame 10.45 is fixedly connected to the first bearing frame 6. The pulling frame 10.45 is rotatably connected to the sliding rod 10.42. Specifically, an annular groove is formed inside the pulling frame 10.45, and a rotating rod is fixedly connected to the sliding rod 10.42, rotatably connected within the annular groove. Specifically, both the first gear transmission part 10.1 and the first gear transmission part 10.1 are existing technologies, including two bevel gears in a perpendicular state, thereby enabling the change of the force transmission direction. Therefore, during the process, when the servo motor 11's power shaft rotates, it drives the bearing cylinder 10.41 to rotate via the first gear transmission unit 10.1, and drives the sliding rod 10.42 to rotate via the limiting part 10.43. This, in turn, drives the reciprocating screw 10.2 to rotate via the sliding rod 10.42 and the second gear transmission unit 10.3, thus enabling the brush cleaning mechanism and the eraser cleaning mechanism to perform cleaning operations. When it is necessary to move the first bearing plate 3 and the second bearing plate 4 away from each other, the pulling frame 10.45 will slide. The pulling frame 10.45 will then drive the sliding rod 10.42 to slide inside the bearing cylinder 10.41, thus continuing the transmission of force. More specifically, the lengths of the bearing cylinder 10.41 and the sliding rod 10.42 can be designed according to the work requirements, as long as the work needs are met.

[0055] In the embodiments provided by this invention, the brush cleaning mechanism includes a first support frame 6, which is threadedly connected to a reciprocating lead screw 10.2. A brush cleaning roller 7 is rotatably connected to the first support frame 6. Therefore, during use, when the servo motor 11 drives the reciprocating lead screw 10.2 to rotate, it can drive the first support frame 6 to slide, thereby driving the brush cleaning roller 7 to slide and perform cleaning operations on the side wall of the CPU workpiece. Specifically, in another embodiment provided by this invention, a passive drive unit is provided between the brush cleaning roller 7 and the first support plate 3, which enables the brush cleaning roller 7 to passively rotate during its sliding stroke, thereby driving the brush cleaning roller 7 to perform cleaning operations on the CPU workpiece and further improving the cleaning effect of the brush cleaning roller 7. The passive drive unit includes a spur gear 8 mounted on the brush cleaning roller 7 and a drive rack 9 provided on the first support plate 3. The spur gear 8 meshes with the drive rack 9. Therefore, during the sliding stroke of the first support frame 6, after the spur gear 8 meshes with the drive rack 9, the spur gear 8 rotates passively, which in turn drives the brush cleaning roller 7 to rotate passively, further improving the cleaning efficiency of the brush cleaning mechanism.

[0056] In the embodiments provided by this invention, the rubber cleaning mechanism includes a second support frame 12, which is threadedly connected to another reciprocating lead screw 10.2. A rubber cleaning unit 14 is mounted on the second support frame 12 via a mounting frame 13. The rubber cleaning unit 14 is slidably connected within the mounting frame 13; the specific sliding method varies and will not be elaborated here. Specifically, a compression spring 16 is provided between the rubber cleaning unit 14 and the mounting frame 13. The elastic force of the compression spring 16 drives the rubber cleaning unit 14 to abut against the CPU workpiece, improving the cleaning effect. On the other hand, the compression spring 16 also provides a buffering effect, preventing damage to the protrusions on the CPU workpiece and protecting it. Furthermore, the compression spring 16 enables the rubber cleaning unit 14 to have an automatic compensation function. When the rubber cleaning unit 14 wears down during use, the compression spring 16 keeps the rubber cleaning unit 14 in constant contact with the side wall of the CPU workpiece, greatly improving the practicality of the entire cleaning equipment.

[0057] A guide unit 15 is provided between the mounting frame 13 and the second support plate 4 to adjust the cleaning state of the rubber cleaning unit 14, further improving the cleaning efficiency of the rubber cleaning unit 14. During the horizontal sliding stroke of the mounting frame 13 driven by the reciprocating screw 10.2, the rubber cleaning unit 14 is driven by the guide unit 15 to perform cleaning operations on the CPU workpiece. Specifically, a support block 15.2 is fixedly connected to the mounting frame 13, and a guide rod 15.4 is fixedly connected to the support block 15.2. A vertical groove is opened on the second support frame 12, and the support block 15.2 drives the mounting frame 13 to slide vertically inside the second support frame 12. A positioning spring 15.3 is provided between the second support frame 12 and the support block 15.2 to improve the stability of the support block 15.2 during sliding. A guide groove 15.1 is provided on the second support plate 4. The guide groove 15.1 is wavy. More specifically, the angle of the wave shape can be designed by the user. The guide rod 15.4 slides inside the guide groove 15.1, thereby driving the rubber cleaning unit 14 to slide horizontally. During the horizontal sliding stroke, the guide rod 15.4 generates a downward force, which makes the rubber cleaning unit 14 have an irregular movement trajectory. Therefore, it can further improve the cleaning efficiency of the rubber cleaning unit 14 on the CPU workpiece and achieve better results.

[0058] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CPU surface cleaning device, comprising a frame (1), wherein a mounting bracket (5) for mounting CPU workpieces is rotatably connected inside the frame (1), characterized in that: The frame (1) has a first support plate (3) and a second support plate (4) slidably connected to each other on both sides. A brush cleaning mechanism is installed on the first support plate (3), and an eraser cleaning mechanism is installed on the second support plate (4). A servo motor (11) is installed inside the frame (1). A transmission mechanism (10) is provided between the servo motor (11) and the brush cleaning mechanism and the rubber cleaning mechanism, which is used to drive the rubber cleaning mechanism and the brush cleaning mechanism to perform cleaning operations on the CPU workpiece. The frame (1) is also provided with a drive unit for driving the first bearing plate (3) and the second bearing plate (4) to slide towards each other. The drive unit is connected to the servo motor (11) through an intermittent linkage (20). The frame (1) is also provided with a transmission part for driving the mounting frame (5) to flip. The transmission part is connected to the drive unit. First station: When the servo motor (11) rotates forward, it drives the rubber cleaning mechanism and the brush cleaning mechanism to clean both sides of the CPU workpiece through the transmission mechanism (10). In the second station, when the servo motor (11) reverses, the first carrier plate (3) and the second carrier plate (4) are driven away from each other by the intermittent linkage (20) and the drive unit, and the mounting bracket (5) is driven to flip by the transmission part. The transmission unit and the drive unit are connected by an intermittent connection unit (23); When the drive unit drives the first bearing plate (3) and the second bearing plate (4) to move away from each other, the intermittent connection unit (23) drives the transmission part to rotate the mounting bracket (5); When the first bearing plate (3) and the second bearing plate (4) approach each other, the intermittent connection unit (23) cannot drive the mounting bracket (5) to rotate and remains vertical. In one cleaning process, two different cleaning operations were performed on both sides of the CPU workpiece. The brush cleaning mechanism was used to clean the dust and impurities on the side wall of the CPU workpiece, and the rubber cleaning mechanism was used to clean the stains and oxide layer on the metal contacts of the CPU workpiece. The drive unit includes a power rod (17) rotatably connected to the frame (1), an intermittent gear (18) mounted on the power rod (17), and a transmission rack (19) fixedly connected to the first bearing plate (3). The intermittent gear (18) and the transmission rack (19) mesh intermittently. The first bearing plate (3) and the second bearing plate (4) are connected by a linkage unit. When the first bearing plate (3) slides, the second bearing plate (4) is driven to slide synchronously through the linkage unit. Furthermore, reset components are provided between the first bearing plate (3), the second bearing plate (4), and the frame (1). The transmission unit includes a first gear (21) rotatably connected to the frame (1) and a second gear (22) mounted on the mounting bracket (5), wherein the first gear (21) meshes with the second gear (22); the intermittent connection unit (23) is disposed between the first gear (21) and the power rod (17); The transmission mechanism (10) includes a reciprocating lead screw (10.2) rotatably connected to the first bearing frame (6); a telescopic transmission component (10.4) is installed inside the frame (1), a first gear transmission part (10.1) is provided between the telescopic transmission component (10.4) and the output shaft of the servo motor (11), and a second gear transmission part (10.3) is provided between the telescopic transmission component (10.4) and the reciprocating lead screw (10.2) for driving the reciprocating lead screw (10.2) to rotate; The telescopic transmission component (10.4) includes a bearing cylinder (10.41), inside which a sliding rod (10.42) is slidably connected. A limiting part (10.43) is provided between the sliding rod (10.42) and the bearing cylinder (10.41), and a fastening spring (10.44) is provided between the sliding rod (10.42) and the bearing cylinder (10.41). A pulling frame (10.45) is fixedly connected to the first bearing frame (6), and the pulling frame (10.45) is rotatably connected to the sliding rod (10.42).

2. The CPU surface cleaning device according to claim 1, characterized in that: The intermittent linkage (20) is installed between the output shaft of the servo motor (11) and the power rod (17); The intermittent linkage (20) includes a connecting block (20.4) fixedly connected to the output shaft of the servo motor (11). The connecting block (20.4) has a toothed groove (20.3). A connecting rod (20.1) is fixedly connected to the power rod (17). The connecting rod (20.1) is rotatably connected to multiple sets of ratchet teeth (20.2) through a base. Each ratchet tooth (20.2) is provided with a torque spring between it and the corresponding base. The elastic force of the torque spring drives the ratchet tooth (20.2) to engage in the toothed groove (20.3).

3. The CPU surface cleaning device according to claim 1, characterized in that: The intermittent connection unit (23) includes a bearing ring (23.1) fixedly connected to the first speed change gear (21), and multiple sets of wedge grooves (23.3) are formed on the bearing ring (23.1). The power rod (17) is provided with a positioning groove, and a limiting rod (23.5) is slidably connected inside the positioning groove. A linkage block (23.2) is fixedly connected to the limiting rod (23.5). Multiple sets of linkage wedge-shaped teeth (23.4) are fixedly connected to the linkage block (23.2). A connecting spring (23.6) is provided between the limiting rod (23.5) and the positioning groove. The elastic force of the connecting spring (23.6) drives each linkage wedge-shaped tooth (23.4) to engage in the corresponding wedge-shaped groove (23.3).

4. The CPU surface cleaning device according to claim 1, characterized in that: The brush cleaning mechanism includes a first support frame (6), which is threadedly connected to a reciprocating lead screw (10.2), and a brush cleaning roller (7) is rotatably connected to the first support frame (6). A passive drive unit is provided between the brush cleaning roller (7) and the first support plate (3) to drive the brush cleaning roller (7) to clean the CPU workpiece.

5. The CPU surface cleaning device according to claim 1, characterized in that: The rubber cleaning mechanism includes a second support frame (12), which is threadedly connected to another reciprocating lead screw (10.2), and a rubber cleaning unit (14) is mounted on the second support frame (12) through a mounting frame (13). Furthermore, a guide unit (15) is provided between the mounting frame (13) and the second bearing plate (4). During the horizontal sliding stroke of the mounting frame (13) driven by the reciprocating screw (10.2), the rubber cleaning unit (14) is driven by the guide unit (15) to perform cleaning operations on the CPU workpiece.

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