An automated SMT pick-and-place machine suction device

Abstract

The present application relates to the technical fields of circuit board manufacturing, and specifically relates to an automatic SMT patch machine adsorption equipment, which comprises a rack, a through conveying opening is formed in the middle of the rack, conveying racks for conveying raw material plates are arranged on both sides of the conveying opening, an adjusting piece is arranged above the conveying racks in the interior of the rack, an adsorption mounting plate for adsorbing the raw material plates is arranged below the adjusting piece, the adjusting piece is used for adjusting the up-down position and the left-right position of the adsorption mounting plate, and a suction disc for adsorbing the raw material plates is arranged below the adsorption mounting plate; the cleaning box is further arranged on one side of the rack in communication, and the cleaning box is used for cleaning the suction disc, in the present application, the cleaning box is arranged on one side of the rack, so that the sundries remaining on the surface of the suction disc can be quickly cleaned, and the cleaning step of the suction disc can be efficiently and quickly completed.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing technology, and more specifically to an automated SMT placement machine adsorption device. Background Technology

[0002] SMT pick-and-place machine suction equipment is a common auxiliary device in the printed circuit manufacturing process. It is used to adjust the position of the PCB board or move the corresponding electronic components to a specified position on the PCB board. It usually includes vacuum generation and supply control equipment (such as vacuum pump, air pipeline and connector and vacuum / de-vacuum pneumatic solenoid valve, etc.) and execution and pick-and-place mechanism (such as suction nozzle).

[0003] Since the actuator and pick-and-place mechanism needs to come into contact with the PCB board or electronic components during operation, the surface of the actuator and pick-and-place mechanism (nozzle) usually has debris (dust, etc.) left after use. Therefore, the nozzle needs to be cleaned and maintained regularly during use. The common maintenance method in the prior art is to use a lint-free cloth or cotton swab dipped in a small amount of high-purity alcohol (IPA) or special cleaning solution to carefully wipe the surface and internal holes of the nozzle. However, this cleaning method is relatively cumbersome and inefficient. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an automated SMT pick-and-place machine adsorption device. This device effectively solves the problem that in existing technologies, the execution and pick-and-place mechanisms need to come into contact with PCB boards or electronic components during operation. As a result, debris is often left on the surface of the execution and pick-and-place mechanisms after use, requiring regular cleaning and maintenance of the nozzles. The common maintenance method in existing technologies is to use a lint-free cloth or cotton swab dipped in a small amount of high-purity alcohol or special cleaning solution to carefully wipe the surface and internal holes of the nozzles. However, this cleaning method is cumbersome and inefficient.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated SMT pick and place machine adsorption device, comprising a frame, wherein a through conveying opening is provided in the middle of the frame, and conveying frames for conveying raw material boards are provided on both sides of the conveying opening; an adjusting component is provided inside the frame above the conveying frames, and an adsorption mounting plate for adsorbing raw material boards is provided below the adjusting component; the adjusting component is used to adjust the vertical and horizontal positions of the adsorption mounting plate, and a suction cup for adsorbing the raw material boards is provided below the adsorption mounting plate;

[0006] It also includes a cleaning box, which is connected and installed on one side of the frame, and is used to clean the suction cups.

[0007] Furthermore, a top plate is provided above the interior of the frame, and the adjusting component includes a first driving component that is slidably installed inside the top plate. The first driving component moves on the X-axis, and a second driving component is provided at both ends of the first driving component. The second driving component is used to move on the Y-axis. An installation cabinet is fixedly installed on the first driving component, and a lifting rod is lifted and lowered below the installation cabinet.

[0008] Furthermore, multiple mounting cylinders are arranged in a rectangular array below the adsorption mounting plate, and multiple suction cups are detachably mounted below the multiple mounting cylinders, with the interior of the mounting cylinders communicating with the interior of the suction cups.

[0009] Furthermore, the lower end of the mounting cylinder is provided with a stepped groove, the suction cup is fitted on the outside of the stepped groove, a fastening sleeve is slidably mounted on the outside of the mounting cylinder, and a fastening spring is provided on the outside of the mounting cylinder, the fastening spring being used to drive the fastening sleeve to slide downward.

[0010] Furthermore, a sealing ring is embedded in the inner wall of the fastening sleeve. When the fastening sleeve moves to the bottom, the sealing ring is pressed against the outside of the suction cup. A circular elastic liner is formed inside the suction cup. The elastic liner is funnel-shaped and has multiple filter holes arranged in a circular array on it.

[0011] Furthermore, a negative pressure box is provided in the middle of the cleaning box, the negative pressure box forms a cleaning space, and a lifting plate is slidably connected to the top of the cleaning space. Cleaning through holes are provided on the lifting plate corresponding to the positions of multiple suction cups, and a one-way exhaust valve is provided at the bottom of the negative pressure box.

[0012] Furthermore, a lifting cylinder is fixedly installed below each cleaning through hole, and a fixed cylinder is sleeved on the outer side of the lower end of the lifting cylinder. The fixed cylinder is slidably connected to the lifting cylinder. A limit spring is provided at the top of the fixed cylinder, and the upper end of the limit spring is supported below the lifting plate. Multiple connecting holes are provided on the outer side of the lower end of the fixed cylinder.

[0013] Furthermore, a limiting disk is coaxially arranged inside the fixed cylinder. The limiting disk is used to abut against the elastic liner inside the suction cup when the suction cup is inserted into the fixed cylinder. Brushes are provided on both sides of the limiting disk.

[0014] Furthermore, the cleaning box is equipped with a replacement box inside, with an opening on one side and a replacement through hole for the suction cup to pass through.

[0015] Compared with the prior art, the present invention provides an automated SMT pick-and-place machine adsorption device, which has the following beneficial effects:

[0016] In this invention, a cleaning box is installed on one side of the frame. When the suction cups need to be cleaned, the drive adjustment component moves the adsorption mounting plate into the cleaning box, allowing multiple suction cups to penetrate into multiple cleaning through holes on the lifting plate. As the adsorption mounting plate continues to move downward, it drives the lifting plate to move downward synchronously, allowing the air inside the entire negative pressure box to be discharged through the one-way exhaust valve. Then, as the adsorption mounting plate moves upward, the lifting plate tends to move upward under the action of the limit spring, creating a negative pressure space below the lifting plate. At this time, air is allowed to enter only through the cleaning through holes. As the air flows around the suction cups, it quickly cleans the debris remaining on the surface of the suction cups, completing the cleaning process of the suction cups efficiently and quickly. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the frame of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the adjusting component of the present invention;

[0022] Figure 5 This is a schematic diagram of the overall structure of the adsorption mounting plate of the present invention;

[0023] Figure 6 This is a half-sectional view of the mounting cylinder and suction cup of the present invention;

[0024] Figure 7 This is a cross-sectional view of the internal structure of the negative pressure box of the present invention;

[0025] Figure 8 This is a cross-sectional view of the internal structure of the lifting cylinder and the fixed cylinder of the present invention.

[0026] The labels in the diagram represent:

[0027] 1. Frame; 101. Conveyor opening; 11. Conveyor frame; 12. Top plate;

[0028] 2. Cleaning box; 21. Negative pressure box; 2101. Cleaning space; 2102. Connecting hole; 211. Lifting plate; 212. One-way exhaust valve; 213. Fixing cylinder; 214. Lifting cylinder; 215. Limit spring; 216. Limit plate; 22. Replacement box; 2201. Replacement through hole;

[0029] 3. Adjusting component; 31. First driving component; 32. Second driving component; 33. Mounting cabinet; 34. Lifting rod;

[0030] 4. Adsorption mounting plate; 41. Mounting cylinder; 42. Suction cup; 4201. Filter through hole; 421. Elastic liner; 43. Fastening sleeve; 44. Fastening spring; 5. Raw material plate. Detailed Implementation

[0031] 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] The present invention will be further described below with reference to embodiments.

[0033] Example: An automated SMT pick-and-place machine adsorption device, such as Figure 1 - Figure 8 As shown, the machine includes a frame 1, with a through conveying opening 101 in the middle of the frame 1. Conveying frames 11 for conveying raw material plates 5 are provided on both sides of the conveying opening 101. An adjusting member 3 is provided inside the frame 1 above the conveying frames 11. An adsorption mounting plate 4 for adsorbing the raw material plates 5 is provided below the adjusting member 3. The adjusting member 3 is used to adjust the vertical and horizontal positions of the adsorption mounting plate 4. A suction cup 42 for adsorbing the raw material plates 5 is provided below the adsorption mounting plate 4.

[0034] It also includes a cleaning box 2, which is connected and installed on one side of the frame 1. The cleaning box 2 is used to clean the suction cups 42. A negative pressure box 21 is provided in the middle of the cleaning box 2. The negative pressure box 21 forms a cleaning space 2101. The top of the cleaning space 2101 is slidably connected to a lifting plate 211 with sealing at the top and bottom. The lifting plate 211 is provided with cleaning through holes corresponding to the positions of multiple suction cups 42. A one-way exhaust valve 212 is provided at the bottom of the negative pressure box 21.

[0035] In addition, a lifting cylinder 214 is fixedly installed below each cleaning through hole. A fixed cylinder 213 is sleeved on the outer side of the lower end of the lifting cylinder 214. The fixed cylinder 213 is slidably connected to the lifting cylinder 214. A limit spring 215 is provided at the top of the fixed cylinder 213. The upper end of the limit spring 215 is supported below the lifting plate 211. Multiple connecting holes 2102 are provided on the outer side of the lower end of the fixed cylinder 213. By providing multiple connecting holes 2102 on the fixed cylinder 213, the debris and dust that are cleaned can enter the negative pressure box 21 through the connecting holes 2102, preventing the dust and debris from adhering to the suction cup 42 again.

[0036] In this application, a cleaning box 2 is set on one side of the frame 1. When the suction cup 42 needs to be cleaned, the drive adjustment component 3 drives the adsorption mounting plate 4 to move into the cleaning box 2, so that multiple suction cups 42 are inserted into multiple cleaning through holes on the lifting plate 211. Then, as the adsorption mounting plate 4 continues to move downward, it will drive the lifting plate 211 to move downward synchronously, so that the air inside the entire negative pressure box 21 is discharged from the one-way exhaust valve 212. Then, as the adsorption mounting plate 4 moves upward, the lifting plate 211 has an upward tendency under the action of the limit spring 215, so that a negative pressure space is formed below the lifting plate 211. At this time, only the cleaning through holes are allowed to enter the air. When the air flows around the suction cup 42, the debris remaining on the surface of the suction cup 42 will be quickly cleaned off, and the cleaning steps of the suction cup 42 are completed efficiently and quickly.

[0037] Furthermore, a top plate 12 is provided above the interior of the frame 1, and the adjusting component 3 includes a first driving component 31 slidably installed inside the top plate 12. The first driving component 31 moves on the X-axis, and a second driving component 32 is provided at both ends of the first driving component 31. The second driving component 32 is used to move on the Y-axis. An installation cabinet 33 is fixedly installed on the first driving component 31, and a lifting rod 34 is lifted and lowered below the installation cabinet 33.

[0038] By setting a first driving component 31 and a second driving component 32 above the top plate 12, the mounting cabinet 33 can be easily moved forward and backward and left and right on the top plate 12 (in the X and Y directions on the plane coordinate axis). Both the first driving component 31 and the second driving component 32 can be driven by linear motors or other driving methods.

[0039] In addition, a vacuum pump is installed inside the mounting cabinet 33. The vacuum pump is connected to the suction cup 42 through a pipeline. At the same time, a control valve and a vacuum sensor are also installed inside the mounting cabinet 33. The above structures are common supporting equipment for vacuum suction cups in the prior art. Their principles and specific connection relationships will not be described in detail.

[0040] Furthermore, multiple mounting cylinders 41 are arranged in a rectangular array below the adsorption mounting plate 4, and multiple suction cups 42 are detachably mounted below the multiple mounting cylinders 41. The interior of the mounting cylinder 41 is connected to the interior of the suction cup 42. A stepped groove is provided at the lower end of the mounting cylinder 41, and the suction cup 42 is fitted on the outside of the stepped groove. A fastening sleeve 43 is slidably mounted on the outside of the mounting cylinder 41. A fastening spring 44 is provided on the outside of the mounting cylinder 41, and the fastening spring 44 is used to drive the fastening sleeve 43 to slide downward.

[0041] By setting multiple mounting cylinders 41 below the adsorption mounting plate 4, and detachably mounting multiple suction cups 42 below the multiple mounting cylinders 41, the suction cups 42 can be more easily disassembled and replaced during maintenance. When the suction cups 42 need to be disassembled, by pushing the fastening sleeve 43 upward, the part of the fastening sleeve 43 on the outside of the suction cup 42 can be moved away from the suction cup 42. Then, by pulling the suction cup 42 downward, the suction cup 42 can be easily detached.

[0042] Furthermore, a sealing ring is embedded in the inner wall of the fastening sleeve 43. When the fastening sleeve 43 moves to the bottom, the sealing ring is pressed against the outside of the suction cup 42. A circular elastic liner 421 is formed inside the suction cup 42. The elastic liner 421 is funnel-shaped and has multiple filter holes 4201 arranged in a circular array on it. The upper end of the suction cup 42 is fitted onto the outside of the stepped groove. After the fastening sleeve 43 moves down, it is fitted onto the outside of the upper end of the suction cup 42. At this time, the fastening sleeve 43 clamps the upper end of the suction cup 42 between the stepped groove and the fastening sleeve 43.

[0043] By embedding a sealing ring on the inner wall of the fastening sleeve 43, the sealing ring can be pressed tightly against the outside of the suction cup 42 when the fastening sleeve 43 is fitted onto the outside of the suction cup 42. This ensures that the upper inner wall of the suction cup 42 is in close contact with the lower edge of the mounting cylinder 41, preventing air leakage at the contact point between the suction cup 42 and the mounting cylinder 41 during use. Furthermore, by setting a funnel-shaped elastic liner 421 inside the suction cup 42 and setting filter holes 4201 around the elastic liner 421, dust or debris can be reduced from entering the pipe above the mounting cylinder 41 or the vacuum pump when the suction cup 42 is adsorbing components or PCB boards. (When the gas carrying dust or debris flows upward, it will disperse into multiple small airflows that continue to flow upward from multiple filter holes 4201, filtering the dust or debris inside the suction cup 42.) This makes it easier to clean the sucked-in dust or debris.

[0044] Furthermore, a limiting disk 216 is coaxially provided inside the fixed cylinder 213. The limiting disk 216 is used to abut against the elastic inner liner 421 inside the suction cup 42 when the suction cup 42 is inserted into the fixed cylinder 213. Brushes are provided on both sides of the limiting disk 216.

[0045] By setting a limiting plate 216 inside the fixed cylinder 213, when the suction cup 42 is inserted into the lifting cylinder 214 and continues to move downward, the elastic liner 421 inside the suction cup 42 will press against the limiting plate 216, making the angle between the elastic liner 421 and the inner wall of the suction cup 42 larger, so that the dust or debris filtered between the elastic liner 421 and the inner wall of the suction cup 42 can be cleaned more easily.

[0046] Furthermore, the cleaning box 2 is internally provided with a replacement box 22, which has an opening on one side. The replacement box 22 has replacement through holes 2201 for the suction cups 42 to pass through. When it is necessary to replace the multiple suction cups 42 below the adsorption mounting plate 4, by moving the adsorption mounting plate 4 directly above the replacement box 22, the multiple suction cups 42 below the adsorption mounting plate 4 can be positioned to correspond to the multiple replacement through holes 2201 on the replacement box 22. After the multiple suction cups 42 have passed through the multiple replacement through holes 2201, the outer edge of the fastening sleeve 43 (e.g., ...) is then... Figure 6 As shown in the diagram, the suction cup 42 will be restricted by the replacement through hole 2201. After that, the suction mounting plate 4 moves downward again, which can make the fastening sleeve 43 leave the outside of the suction cup 42. At this time, the suction cup 42 can be easily pulled down to replace the suction cup 42.

[0047] In the description of this invention, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0049] Although embodiments of the invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. An automatic SMT patch machine suction equipment, comprising a rack (1), a through conveying opening (101) is formed in the middle of the rack (1), conveying racks (11) for conveying raw material plates (5) are arranged on both sides of the conveying opening (101), characterized in that, The inside of the rack (1) is above the conveying frame (11) and is provided with an adjusting piece (3), and a suction mounting plate (4) for adsorbing raw material plates (5) is arranged below the adjusting piece (3), the adjusting piece (3) is used for adjusting the up-down position and left-right position of the suction mounting plate (4), and a suction disc (42) for adsorbing the raw material plates (5) is arranged below the suction mounting plate (4). Further comprising a cleaning box (2) which is communicated and mounted on one side of the rack (1), and the cleaning box (2) is used for cleaning the suction disc (42). The inside of the suction disc (42) is formed with a circular elastic lining (421), the elastic lining (421) is funnel-shaped, and a plurality of filtering through-holes (4201) are arranged in a circular array on the elastic lining (421). The middle of the cleaning box (2) is provided with a negative pressure box (21), the negative pressure box (21) is formed with a cleaning space (2101), the top of the cleaning space (2101) is sealingly and slidably connected with a lifting plate (211) in an up-down direction, a plurality of cleaning through-holes are arranged on the lifting plate (211) corresponding to the positions of the plurality of suction discs (42), and a one-way exhaust valve (212) is arranged on the bottom of the negative pressure box (21). The bottom of each cleaning through-hole is fixedly provided with a lifting cylinder (214), the outer side of the lower end of the lifting cylinder (214) is sleeved with a fixed cylinder (213), the fixed cylinder (213) is slidably connected with the lifting cylinder (214), the top of the fixed cylinder (213) is provided with a limiting spring (215), the upper end of the limiting spring (215) is supported below the lifting plate (211), and the outer side of the lower end of the fixed cylinder (213) is provided with a plurality of communication holes (2102).

2. The automated SMT pick-and-place machine suction device of claim 1, wherein, The inside of the rack (1) is above the conveying frame (11) and is provided with an adjusting piece (3), and a suction mounting plate (4) for adsorbing raw material plates (5) is arranged below the adjusting piece (3), the adjusting piece (3) is used for adjusting the up-down position and left-right position of the suction mounting plate (4), and a suction disc (42) for adsorbing the raw material plates (5) is arranged below the suction mounting plate (4).

3. The automated SMT pick-and-place machine suction device of claim 1, wherein, The bottom of each cleaning through-hole is fixedly provided with a lifting cylinder (214), the outer side of the lower end of the lifting cylinder (214) is sleeved with a fixed cylinder (213), the fixed cylinder (213) is slidably connected with the lifting cylinder (214), the top of the fixed cylinder (213) is provided with a limiting spring (215), the upper end of the limiting spring (215) is supported below the lifting plate (211), and the outer side of the lower end of the fixed cylinder (213) is provided with a plurality of communication holes (2102).

4. The automated SMT pick-and-place machine suction device of claim 3, wherein, The inside of the suction disc (42) is formed with a circular elastic lining (421), the elastic lining (421) is funnel-shaped, and a plurality of filtering through-holes (4201) are arranged in a circular array on the elastic lining (421).

5. The automated SMT pick-and-place machine suction device of claim 4, wherein, The middle of the cleaning box (2) is provided with a negative pressure box (21), the negative pressure box (21) is formed with a cleaning space (2101), the top of the cleaning space (2101) is sealingly and slidably connected with a lifting plate (211) in an up-down direction, a plurality of cleaning through-holes are arranged on the lifting plate (211) corresponding to the positions of the plurality of suction discs (42), and a one-way exhaust valve (212) is arranged on the bottom of the negative pressure box (21). The bottom of each cleaning through-hole is fixedly provided with a lifting cylinder (214), the outer side of the lower end of the lifting cylinder (214) is sleeved with a fixed cylinder (213), the fixed cylinder (213) is slidably connected with the lifting cylinder (214), the top of the fixed cylinder (213) is provided with a limiting spring (215), the upper end of the limiting spring (215) is supported below the lifting plate (211), and the outer side of the lower end of the fixed cylinder (213) is provided with a plurality of communication holes (2102). The inside of the suction disc (42) is formed with a circular elastic lining (421), the elastic lining (421) is funnel-shaped, and a plurality of filtering through-holes (4201) are arranged in a circular array on the elastic lining (421).

6. The automated SMT pick-and-place machine suction device of claim 1, wherein, The inside of the fixing cylinder (213) is coaxially provided with a limiting disc (216), which is used for abutting against an elastic inner liner (421) in the inside of the suction disc (42) in a state that the suction disc (42) is inserted into the inside of the fixing cylinder (213), and the limiting disc (216) is provided with a brush on both sides.

7. The automated SMT pick-and-place machine suction device of claim 1, wherein, The inside of the cleaning box (2) is provided with a replacement box (22), one side of the replacement box (22) is provided with an opening, and the replacement box (22) is provided with a replacement through hole (2201) for the suction disc (42) to pass through.

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