A fully automatic high-precision chip mounter

By using multiple ring rubber nozzles in the patch machine to work in turn, and combining the design of wiping the cylinder head and detecting the fullness, the irreversible deformation of the rubber nozzle caused by frequent work is solved, and the accuracy of the patch machine and the service life of the rubber nozzle are improved.

CN119767672BActive Publication Date: 2025-06-24NANJING YINMAO MICROELECTRONICS MFG CO LTD
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Patent Information

Application Number
CN202510267808.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2025-06-24
Estimated Expiration
2045-03-07

AI Technical Summary

Technical Problem

In existing patch machines, rubber suction nozzles are prone to irreversible deformation due to dust erosion and reverse compression during frequent absorption of components, which affects the pick-and-place accuracy of components.

Method used

A fully automatic high-precision patch machine is designed, which uses multiple ring rubber nozzles to work in turn. The ring rubber nozzle is rotated and wiped away dust by removing dust and detecting its fullness to ensure that the rubber nozzle has enough time to restore elasticity after each work.

Benefits of technology

It effectively avoids irreversible deformation caused by frequent work of a single rubber nozzle, improves the pick-up and placement accuracy and stability of components, and extends the service life of the rubber nozzle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of chip mounters, and specifically relates to a fully automatic high-precision chip mounter, which includes a chip mounter main body. A chip head is arranged in the chip mounter main body. The chip head includes a head frame, a row of risers, a lifting device, a micro air pump, a chip placer, and a return stop vertical plate. The top of the return stop vertical plate is fixed on the head frame. In the present invention, multiple annular rubber nozzles are used to suck components in turn to avoid the irreversible deformation problem caused by the frequent operation of a single annular rubber nozzle. The barrel head rotates to wipe the annular rubber nozzle to remove dust, and at the same time, the fullness of the annular rubber nozzle is detected. If the annular rubber nozzle is frequently compressed and its shape becomes unfilled, there is no contact between the annular rubber nozzle and the barrel head, resulting in the disconnection of the circuit in the barrel tool, and the second rack does not emit signals externally. The host terminal can determine whether there is a problem with the annular rubber nozzle based on the signal reception situation.
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Description

Technical Field

[0001] The present invention relates to the technical field of chip mounters, and specifically to a fully automatic high-precision chip mounter. Background Art

[0002] A chip mounter is a device that accurately places surface-mounted components on the PCB pads by moving the placement head, and is divided into two types: manual and fully automatic. A fully automatic chip mounter is a device used to achieve high-speed and high-precision fully automatic placement of components, and is the most critical and complex device in the entire SMT production. The chip mounter is the main device in the SMT production line. The chip mounter has developed from the early low-speed mechanical chip mounter to a high-speed optical centering chip mounter, and is developing towards multi-function and flexible connection modularization.

[0003] In the prior art, rubber suction nozzles are used in chip mounters to extract components. The rubber suction nozzles are made of relatively soft materials and will not damage the surface of the materials, and are particularly suitable for sucking components with fragile or protected surfaces; rubber suction nozzles are applicable to a variety of materials, especially those with non-smooth or strong toughness surfaces, and can ensure the stability and accuracy of suction; although the service life of rubber suction nozzles is relatively short, their price is relatively low, and they are easy to replace, with a relatively low overall cost. Rubber suction nozzles also have many deficiencies. The rubber suction nozzles frequently suck components, and the dust attached to the surface of the components or the dust in the air will erode the rubber suction nozzles. The rubber suction nozzles use the surface with attached dust to contact the components, and there may be a hidden danger of air leakage at the contact position, which causes the rubber suction nozzles to be unable to smoothly suck the components. In addition, the rubber suction nozzles are frequently pressed in the reverse direction by the components, and may undergo irreversible shrinkage deformation, which in turn affects the subsequent picking and placing of components. Therefore, the present invention provides a fully automatic high-precision chip mounter. Summary of the Invention

[0004] The purpose of the present invention is to provide a fully automatic high-precision chip mounter to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A fully automatic high-precision chip mounter, including a chip mounter main body, wherein a placement head is arranged in the chip mounter main body, and the placement head includes:

[0006] A head frame, and a motion positioning system arranged in the chip mounter main body is used to control the movement of the head frame;

[0007] A row of risers, a micro air pump correspondingly inserted at the upper end of each riser, and a belt-driven lifting device correspondingly connected to one side of each riser. The micro air pump is fixed on the head frame, and the riser slides through a column hole opened on the head frame;

[0008] A placer, and a placer is correspondingly connected to the bottom end of each riser;

[0009] The return stop vertical plate has its top end fixed to the headstock, and the bottom end of the return stop vertical plate blocks and drives the ascending chip mounter.

[0010] The chip mounter includes:

[0011] A longitudinal folding pipe, with its top end fixedly connected to the vertical pipe.

[0012] A nozzle wheel set, which is connected to the bottom end of the longitudinal folding pipe.

[0013] The chip mounter further includes:

[0014] A cleaning part for detecting the fullness of the nozzles, which is distributed on one side of the nozzle wheel set;

[0015] A pressure part for driving the nozzle wheel set to rotate, and the pressure part also establishes a transmission between the return stop vertical plate and the cleaning part.

[0016] The nozzle wheel set includes an outer cover in the shape of a circular groove housing, a plurality of neck pipes connected in a ring around the outside of the outer cover, a ring-shaped rubber nozzle fixed to the outer end of each neck pipe, and an inner cover movably sleeved inside the outer cover. The inner cover is in the shape of a circular groove housing, with the bottom end of the longitudinal folding pipe fixedly connected to the inner cover, and the bottom end side of the inner cover is connected to the bottom neck pipe through a circular hole opened thereon.

[0017] The pressure part includes a folding plate frame fixed at one end to the longitudinal folding pipe, a pressing tool supported on the folding plate frame, a main rack for contacting and transmitting with the bottom end of the return stop vertical plate, a gear assembly for establishing a transmission between the main rack and the pressing tool, and a horizontal long shaft with one end drivingly connected to the gear assembly. The other end of the horizontal long shaft is drivingly connected to the cleaning part, and a straight plate is arranged on the main rack to slide through the inner hole of a square tube fixed on the folding plate frame.

[0018] The gear assembly includes a centralized control shaft, a shaft frame supporting the centralized control shaft, a reverse one-way bearing and a forward one-way bearing fixedly sleeved on the centralized control shaft, a first cylindrical gear fixedly sleeved outside the reverse one-way bearing, a second cylindrical gear fixedly sleeved outside the forward one-way bearing, a return spring fixed to one end of the centralized control shaft, and a side shaft also supported on the shaft frame. The side shaft and the horizontal long shaft are respectively movably sleeved in two circular holes opened on the shaft frame. One end of the side shaft is meshed and drivingly connected to the first cylindrical gear through a fixed gear, the other end of the side shaft is meshed and drivingly connected to a bevel gear fixed on the horizontal long shaft through a fixed bevel gear, the outer end of the return spring is fixed to the shaft frame, one end of the shaft frame is fixed to the folding plate frame, and the centralized control shaft is meshed and drivingly connected to the main rack through a fixed gear.

[0019] The hair press includes a hair pressing shaft movably sleeved in a circular hole formed in a folding plate frame, a plurality of clamping plates evenly arranged in a ring at one end of the hair pressing shaft, a ring frame supporting the clamping plates, a plurality of U-shaped elastic pieces fixedly arranged in a ring on the ring frame, a ring disc housing movably sleeved on the hair pressing shaft, and a small transmission spring ring-connected between the ring disc housing and the hair pressing shaft. A ring plate is arranged on the ring disc housing to be stuck in a ring groove formed in the hair pressing shaft. The clamping plates slide through plate holes formed in the ring frame. One end of each clamping plate is provided with a tip to be stuck into a V-shaped groove formed in the outer side wall of the hair pressing shaft. The other end of each clamping plate is pressed by a U-shaped elastic piece. The ring frame is fixed on the folding plate frame. The other end of the hair pressing shaft is fixed on the middle housing of the outer cover. An external gear ring is arranged on the outer part of the ring disc housing to be in meshing transmission connection with a second cylindrical gear.

[0020] The cleaning part includes a second frame fixed at one end on a longitudinal folding pipe, a cylinder supported at the other end of the second frame, a cylinder head connected to one end of the cylinder, and a signal device fixed on the second frame. The cylinder head wipes the annular rubber nozzles in turn by rotation.

[0021] The cylinder includes an insulating outer cylinder, an insulating inner cylinder movably sleeved inside the insulating outer cylinder, an annular spring fixed on one end of the insulating inner cylinder, a switch metal piece fixed at the other end of the insulating inner cylinder, and two conductive rings fixedly sleeved on the outer part of the insulating outer cylinder. Two conductive elastic pieces are arranged on the signal device to contact the two conductive rings respectively. Metal convex plates are arranged on each conductive ring. When the insulating outer cylinder and the insulating inner cylinder rotate in a staggered manner, the two metal convex plates jointly contact the switch metal piece to conduct electricity. The outer end of the annular spring is fixed on the insulating outer cylinder. The insulating outer cylinder is stuck in a ring groove formed in the outer side wall of the insulating inner cylinder. A ring groove is formed in the outer side wall of the insulating outer cylinder to be clamped with a circular hole formed in the second frame. An external gear ring is arranged on the outer part of the insulating outer cylinder to be in meshing transmission connection with a disc gear fixed at one end of a horizontal long shaft.

[0022] The cylinder head includes a tail cylinder fixed at the end of the insulating inner cylinder, a double-control cylinder arranged at one end of the tail cylinder, a C-shaped elastic piece connected between the double-control cylinder and the tail cylinder, and a cleaning cloth wrapped at one end of the double-control cylinder. A plurality of convex blocks are evenly arranged in a ring on the tail cylinder, and the convex blocks are stuck into sliding grooves formed in the double-control cylinder.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By using a plurality of annular rubber nozzles to suck components in turn, the present invention avoids the irreversible deformation problem caused by the frequent operation of a single annular rubber nozzle. The cylinder head rotates to wipe the annular rubber nozzles to remove dust, and at the same time, the fullness of the annular rubber nozzles is detected. If the annular rubber nozzles are frequently compressed and the shape becomes non-full, there is no contact between the annular rubber nozzles and the cylinder head, resulting in the disconnection of the circuit in the cylinder. Then the second frame does not emit signals externally. The host terminal can judge whether there is a problem with the annular rubber nozzles according to the signal reception situation.

[0025] 2. During the normal process of picking and placing components, the pick-and-place head moves up and down within the specified range. If the annular rubber nozzles need to be replaced alternately, the pick-and-place head needs to rise and contact the backstop plate, and the backstop plate is used to provide power by pushing back, so as to realize the alternate replacement of the annular rubber nozzles through subsequent transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] Figure 2 It is a schematic diagram of the position of the pick-and-place head.

[0028] Figure 3 It is a schematic diagram of the position of the riser pipe.

[0029] Figure 4 It is a schematic diagram of the position of the lifting device.

[0030] Figure 5 It is a schematic structural diagram of the pick-and-place head.

[0031] Figure 6 It is a schematic structural diagram of the nozzle wheel set.

[0032] Figure 7 It is a schematic structural diagram of the pressure part.

[0033] Figure 8 It is a schematic structural diagram of the gear integration.

[0034] Figure 9 It is a schematic structural diagram of the pressing tool.

[0035] Figure 10 It is a schematic structural diagram of the ring disc housing.

[0036] Figure 11 It is a schematic structural diagram of the cleaning part.

[0037] Figure 12 It is a schematic structural diagram of the longitudinal folding pipe.

[0038] Figure 13 It is a schematic structural diagram of the cylinder.

[0039] Figure 14 It is a schematic structural diagram of the cylinder head.

[0040] Figure 15 It is a schematic diagram of the position of the cleaning cloth.

[0041] In the figure: the main body 1 of the chip mounter, the chip mounting head 2, the head frame 3, the riser pipe 4, the micro air pump 5, the lifting device 6, the chip mounter 7, the return baffle plate 8, the longitudinal folding pipe 10, the suction nozzle wheel set 11, the cleaning part 12, the pressure part 13, the annular rubber nozzle 14, the neck pipe 15, the outer cover 16, the inner cover 17, the main rack 18, the gear integration 19, the folding plate frame 20, the horizontal long shaft 21, the pressing tool 22, the return spring 23, the first cylindrical gear 24, the reverse one-way bearing 25, the shaft frame 26, the side shaft 27, the centralized control shaft 28, the second cylindrical gear 29, the forward one-way bearing 30, the ring plate shell 31, the small forwarding spring 32, the clamping plate 33, the pressing shaft 34, the ring frame 35, the U-shaped elastic piece 36, the second frame 37, the signal device 38, the cylinder 39, the cylinder head 40, the annular spring 41, the insulating outer cylinder 42, the conductive ring 43, the switch metal piece 44, the insulating inner cylinder 45, the cleaning cloth 46, the double-control cylinder 47, the C-shaped elastic piece 48, the tail cylinder 49. Detailed implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figures 1 to 15 , the present invention provides a technical solution: a fully automatic high-precision chip mounter, including a main body 1 of the chip mounter, and a chip mounting head 2 is arranged in the main body 1 of the chip mounter. The chip mounting head 2 includes:

[0044] The head frame 3 is controlled to move by a motion positioning system arranged in the main body 1 of the chip mounter;

[0045] A row of riser pipes 4, a micro air pump 5 inserted correspondingly at the upper end of each riser pipe 4, and a belt-driven lifting device 6 connected correspondingly to one side of each riser pipe 4. The micro air pump 5 is fixed on the head frame 3, and the riser pipe 4 slides through a column hole opened on the head frame 3;

[0046] The chip mounter 7, and a chip mounter 7 is connected correspondingly to the bottom end of each riser pipe 4;

[0047] The return baffle plate 8, the top end of the return baffle plate 8 is fixed on the head frame 3, and the bottom end of the return baffle plate 8 blocks and drives the rising chip mounter 7.

[0048] Refer to Figure 5 Understand that the chip mounter 7 includes:

[0049] The longitudinal folding pipe 10, and the top end of the longitudinal folding pipe 10 is fixedly communicated with the riser pipe 4;

[0050] The nozzle wheel set 11 is connected to the bottom end of the longitudinal folding pipe 10.

[0051] Reference Figure 5 Understand that the mounter 7 further includes:

[0052] A cleaning part 12 for detecting the fullness of the nozzles, and the cleaning part 12 is distributed on one side of the nozzle wheel set 11;

[0053] A pressure part 13 for driving the nozzle wheel set 11 to rotate, and the pressure part 13 also establishes a transmission between the return stop vertical plate 8 and the cleaning part 12.

[0054] Reference Figure 6 Understand that the nozzle wheel set 11 includes an outer cover 16 in the shape of a circular groove housing, a plurality of neck pipes 15 connected in a ring around the outside of the outer cover 16, a ring-shaped rubber nozzle 14 fixed to the outer end of each neck pipe 15, and an inner cover 17 movably sleeved inside the outer cover 16. The inner cover 17 is in the shape of a circular groove housing, and the bottom end of the longitudinal folding pipe 10 is fixedly connected to the inner cover 17. Moreover, the bottom side shell of the inner cover 17 is connected to the bottom neck pipe 15 through a circular hole opened.

[0055] In the prior art, the lifting device 6 drives the riser pipe 4 to lift, and thus can drive the entire mounter 7 to lift. Figure 6 After the lowermost ring-shaped rubber nozzle 14 descends and contacts the component, then the micro air pump 5 in the prior art works. Then, the air in the riser pipe 4 rises and is discharged outward, and the air flow inside the longitudinal folding pipe 10 discharges upward and outward, generating a negative pressure inside the inner cover 17. In this way, the bottom ring-shaped rubber nozzle 14 can effectively adsorb the component, and the remaining ring-shaped rubber nozzles 14 will not suck air because there are only air guiding through holes on the bottom side shell of the inner cover 17. During the process of the bottom ring-shaped rubber nozzle 14 frequently picking and placing components, there may be a problem of dust adhesion on the surface. In addition, the ring-shaped rubber nozzle 14 is frequently pressed by the component in the reverse direction, and the ring-shaped rubber nozzle 14 may undergo irreversible deformation. In this way, the ring-shaped rubber nozzle 14 cannot recover to the elastic full state in time and effectively, thus affecting the subsequent component suction work.

[0056] Reference Figure 7 Understand that the pressure part 13 includes a folding plate frame 20 fixed at one end to the longitudinal folding pipe 10, a hair pressing tool 22 supported on the folding plate frame 20, a main rack 18 for contacting and transmitting with the bottom end of the return stop vertical plate 8, a gear assembly 19 for establishing a transmission between the main rack 18 and the hair pressing tool 22, and a horizontal long shaft 21 with one end drivingly connected to the gear assembly 19. The other end of the horizontal long shaft 21 is drivingly connected to the cleaning part 12. A straight plate is arranged on the main rack 18 to slide through the inner hole of the square tube fixed on the folding plate frame 20.

[0057] Reference Figure 8It is understood that the gear assembly 19 includes a centralized control shaft 28, a shaft frame 26 supporting the centralized control shaft 28, a reverse one-way bearing 25 and a forward one-way bearing 30 fixed on the centralized control shaft 28, a first cylinder gear 24 fixed on the outer sleeve of the reverse one-way bearing 25, a second cylinder gear 29 fixed on the outer sleeve of the forward one-way bearing 30, a return spring 23 fixed on one end of the centralized control shaft 28, and a side shaft 27 supported on the shaft frame 26, and the side shaft 27 and the horizontal long shaft 21 are respectively movably sleeved on the shaft In the two circular holes opened on the frame 26, one end of the side shaft 27 is meshed and connected with the first cylinder gear 24 through a fixed gear, and the other end of the side shaft 27 is meshed and connected with the bevel gear fixed on the horizontal long shaft 21 through a fixed bevel gear. The outer end of the return spring 23 is fixed on the shaft frame 26, and one end of the shaft frame 26 is fixed on the folding plate frame 20. The centralized control shaft 28 is meshed and connected with the main rack 18 through a fixed gear, and the centralized control shaft 28 is movably sleeved in the through hole opened on the shaft frame 26.

[0058] The hair pressing tool 22 includes a hair pressing shaft 34 movably sleeved in a circular hole on the folding plate frame 20, a plurality of clamping plates 33 evenly arranged around one end of the hair pressing shaft 34, a ring frame 35 supporting the clamping plates 33, a plurality of U-shaped spring pieces 36 fixedly arranged around the ring frame 35, a ring disk shell 31 movably sleeved on the hair pressing shaft 34, and a small forwarding strip 32 arranged between the ring disk shell 31 and the hair pressing shaft 34. The ring disk shell 31 is provided with a ring plate to clamp the hair pressing shaft The card plate 33 slides through the plate hole formed on the ring frame 35 in the annular groove formed on the outer wall of the pressing shaft 34. One end of the card plate 33 is inserted into the V-shaped groove formed on the outer wall of the pressing shaft 34 by setting a tip. The other end of the card plate 33 is pressed by the U-shaped spring piece 36. The ring frame 35 is fixed on the folding plate frame 20. The other end of the pressing shaft 34 is fixed on the middle shell of the outer cover 16. The outer side of the ring disk shell 31 is connected to the second cylinder gear 29 by meshing transmission.

[0059] The cleaning section 12 includes a second frame 37 with one end fixed on the longitudinal folded tube 10, a tube 39 supported by the other end of the second frame 37, a tube head 40 connected to one end of the tube 39, and a signal device 38 fixed on the second frame 37. The tube head 40 rotates to wipe the annular rubber nozzle 14 that is contacted in turn.

[0060] The cylinder 39 includes an insulating outer cylinder 42, an insulating inner cylinder 45 movably sleeved inside the insulating outer cylinder 42, an annular spring 41 fixedly sleeved on one end of the insulating inner cylinder 45, a switch metal sheet 44 fixed on the other end of the insulating inner cylinder 45, and two conductive rings 43 fixedly sleeved outside the insulating outer cylinder 42. The signal device 38 is provided with two conductive springs to contact the two conductive rings 43 respectively. Each conductive ring 43 is provided with a metal convex plate, and when the insulating outer cylinder 42 and the insulating inner cylinder 45 rotate in an offset manner, the two metal convex plates are in contact with the switch metal sheet 44 and are energized. The outer end of the annular spring 41 is fixed on the insulating outer cylinder 42, and the insulating outer cylinder 42 is clamped in an annular groove opened on the outer wall of the insulating inner cylinder 45. The outer wall of the insulating outer cylinder 42 is clamped with a circular hole opened on the second frame 37 by opening an annular groove. The outside of the insulating outer cylinder 42 is provided with an external gear ring to mesh with the disc gear fixed at one end of the horizontal long shaft 21 for transmission connection.

[0061] The barrel head 40 includes a tail barrel 49 fixed to the end of the insulating inner barrel 45, a double control barrel 47 arranged at one end of the tail barrel 49, a C-shaped spring 48 connected between the double control barrel 47 and the tail barrel 49, and a cleaning cloth 46 wrapped at one end of the double control barrel 47. A plurality of protrusions are evenly arranged on the tail barrel 49, and the protrusions are stuck in the slide grooves opened on the double control barrel 47.

[0062] In order to prevent the irreversible deformation of the annular rubber nozzle 14 caused by frequent reverse pressure, the present invention adopts multiple annular rubber nozzles 14 to work in turn, so that a single annular rubber nozzle 14 is replaced after working for a period of time, and the resting annular rubber nozzle 14 can have enough time to restore the elastic and full state. The driving principle of the multiple annular rubber nozzles 14 being replaced in turn is: Figure 5 , the chip mounter 7 descends to absorb the components, and then the chip mounter 7 rises to control the components to rise. However, when the chip mounter 7 rises, it will stop when it encounters the return plate 8, so that the replacement mechanism is not triggered. If the annular rubber nozzle 14 needs to be replaced, the chip mounter 7 in the micro air pump 5 can continue to rise, thereby triggering the replacement mechanism, because the bottom end of the return plate 8 will relatively press down the main rack 18, and the main rack 18 moves to drive the centralized control shaft 28 to rotate, and then drives the second cylinder gear 29 through the forward one-way bearing 30, thereby causing the ring disk shell 31 to rotate, and the small The forwarding bar 32 accumulates power and contracts, and the small forwarding bar 32 provides rotation pressure for the pressing shaft 34. After the small forwarding bar 32 accumulates enough power, the clamping state of the pressing shaft 34 is broken, and the pressing shaft 34 will rotate a quarter of a circle, because the four clamping plates 33 are compressed by the U-shaped spring pieces 36 to elastically clamp the pressing shaft 34. During the rotation of the pressing shaft 34, the pressure of the small forwarding bar 32 itself is released. Therefore, the pressing shaft 34 will be re-locked after rotating a quarter of a circle, and the pressing shaft 34 drives the outer cover 16, and then the neck tube 15 drives the annular rubber nozzle 14 to move around. Figure 6The annular rubber nozzle 14 that has been wiped and cleaned moves to the bottommost part in a circular motion to extract components, and the annular rubber nozzle 14 that was originally at the bottommost part starts to rest after moving away in a circular motion.

[0063] Reference Figure 6 , the process of a single annular rubber nozzle 14 rotating in a circle is divided into four stages, and there will be a stage of contact and docking with the barrel head 40. The barrel head 40 wipes and cleans the annular rubber nozzle 14 and detects its fullness. Principle of wiping and cleaning: During the process of the placement head 7 descending and separating from the return baffle 8, the return spring 23 releases pressure to control the reset and reverse rotation of the centralized control shaft 28, and then reversely rotates the one-way bearing 25 to control the rotation of the first barrel gear 24. Subsequently, the side shaft 27 drives the horizontal long shaft 21. Next, the insulating outer cylinder 42 rotates to drive the annular spring 41, causing the insulating inner cylinder 45 and the barrel head 40 to rotate synchronously. The cleaning cloth 46 on the barrel head 40 wipes the docked annular rubber nozzle 14 through rotation.

[0064] Principle of detecting the fullness of the annular rubber nozzle 14: When the annular rubber nozzle 14 is in a normal full state, during the process of the cleaning cloth 46 wiping the annular rubber nozzle 14, there is frictional resistance. In this way, the rotation of the insulating outer cylinder 42 causes the annular spring 41 to contract, thereby controlling the rotation of the insulating inner cylinder 45. There is relative misaligned rotation between the insulating inner cylinder 45 and the insulating outer cylinder 42. In this way, the two conductive rings 43 come into contact with the switch metal sheet 44 at the same time. The signal device 38 is a combination of a battery and a signal transmitter in the prior art. The battery is powered on, and the signal transmitter continuously transmits signals to the host terminal. If there is no influence of frictional resistance, the reason is that the annular rubber nozzle 14 is over-compressed and cannot be restored. There is no contact or only a little contact between the annular rubber nozzle 14 and the cleaning cloth 46. The insulating outer cylinder 42 and the insulating inner cylinder 45 are in a state close to synchronous rotation, and the conductive ring 43 and the switch metal sheet 44 do not come into contact, which will not cause subsequent signal transmission. In this way, whether the annular rubber nozzle 14 has excessive deformation problems can be judged by the situation of receiving signals by the host terminal. If the annular rubber nozzle 14 has irreversible deformation, the technician can replace the new annular rubber nozzle 14 in time.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic high-precision placement machine, including a placement machine body, characterized in that: The main body of the placement machine is provided with a placement head, and the placement head includes: Head frame, the motion positioning system set in the main body of the placement machine controls the movement of the head frame; A row of risers, a micro air pump correspondingly plugged into the upper end of each riser, and a belt-driven lifting device correspondingly connected to one side of each riser, the micro air pump is fixed on the head frame, and the riser slides through the column hole opened on the head frame; Mounter, each riser bottom end is connected to a mounter; A return plate, the top of which is fixed on the head frame, and the bottom of which blocks the rising mounter; The patch device comprises: A longitudinal folded pipe, the top of which is fixedly connected to the vertical pipe; A suction nozzle wheel assembly, which is connected to the bottom end of the longitudinal folded tube; The patch device also includes: The cleaning part for detecting the fullness of the nozzle is located on one side of the nozzle wheel assembly; A pressure part that drives the nozzle wheel assembly to rotate, and the pressure part also establishes transmission between the return plate and the cleaning part; The nozzle wheel assembly comprises an outer cover in the shape of a circular groove shell, a plurality of neck tubes connected in a ring outside the outer cover, a ring-shaped rubber nozzle fixed at the outer end of each neck tube, and an inner cover movably sleeved inside the outer cover, the inner cover is in the shape of a circular groove shell, the bottom end of the longitudinal folded tube is fixedly connected to the inner cover, and a circular hole is provided on the shell side of the bottom end of the inner cover to communicate with the neck tube at the bottom; The pressure part includes a folding plate frame with one end fixed on the longitudinal folding tube, a hair pressing tool supported on the folding plate frame, a main rack for contacting and transmitting with the bottom end of the return plate, a gear integration for establishing transmission between the main rack and the hair pressing tool, and a horizontal long shaft with one end transmitted to the gear integration, the other end of the horizontal long shaft is connected to the cleaning part in transmission, and the main rack is slidably passed through the inner hole of the square tube fixed on the folding plate frame by arranging a straight plate.

2. A fully automatic high-precision placement machine according to claim 1, characterized in that: The gear assembly includes a centralized control shaft, a shaft frame supporting the centralized control shaft, a reverse one-way bearing and a forward one-way bearing of a fixed sleeve on the centralized control shaft, a first cylinder gear of an outer fixed sleeve of the reverse one-way bearing, a second cylinder gear of an outer fixed sleeve of the forward one-way bearing, a return spring fixed on one end of the centralized control shaft, and a side shaft supported on the shaft frame. The side shaft and the horizontal long shaft are respectively movably sleeved in two circular holes opened on the shaft frame. One end of the side shaft is meshed and connected to the first cylinder gear through a fixed gear, and the other end of the side shaft is meshed and connected to the bevel gear fixed on the horizontal long shaft through a fixed bevel gear. The outer end of the return spring is fixed on the shaft frame, and one end of the shaft frame is fixed on the folding plate frame. The centralized control shaft is meshed and connected to the main rack through a fixed gear.

3. A fully automatic high-precision placement machine according to claim 2, characterized in that: The hair pressing tool comprises a hair pressing shaft movably sleeved in a circular hole provided on a folding plate frame, a plurality of clamping plates evenly arranged on one end of the hair pressing shaft, a ring frame supporting the clamping plates, a plurality of U-shaped spring sheets fixedly arranged on the ring frame, a ring disk shell movably sleeved on the hair pressing shaft, and a small forwarding strip arranged between the ring disk shell and the hair pressing shaft. The ring disk shell is clamped in a ring groove provided on the hair pressing shaft by a ring plate provided on the ring disk shell, the clamping plate slides through a plate hole provided on the ring frame, one end of the clamping plate is clamped into a V-shaped groove provided on an outer side wall of the hair pressing shaft by a tip provided, the other end of the clamping plate is pressed by the U-shaped spring sheet, the ring frame is fixed on the folding plate frame, the other end of the hair pressing shaft is fixed on the middle shell of the outer cover, and the outer side of the ring disk shell is meshed and connected with the second cylinder gear by an outer gear ring provided on the outer side.

4. A fully automatic high-precision placement machine according to claim 1, characterized in that: The cleaning part includes a second frame with one end fixed on the longitudinal folded tube, a tube supported by the other end of the second frame, a tube head connected to one end of the tube, and a signal device fixed on the second frame. The tube head wipes the annular rubber mouths that are contacted in turn by rotating.

5. A fully automatic high-precision placement machine according to claim 4, characterized in that: The cylinder tool includes an insulating outer cylinder, an insulating inner cylinder movably sleeved inside the insulating outer cylinder, an annular spring fixedly sleeved on one end of the insulating inner cylinder, a switch metal sheet fixed on the other end of the insulating inner cylinder, and two conductive rings fixedly sleeved outside the insulating outer cylinder. The signal device is provided with two conductive springs to contact the two conductive rings respectively. Each conductive ring is provided with a metal convex plate, and when the insulating outer cylinder and the insulating inner cylinder rotate in an offset manner, the two metal convex plates are in contact with the switch metal sheet and are energized. The outer end of the annular spring is fixed on the insulating outer cylinder, the insulating outer cylinder is clamped in an annular groove provided on the outer side wall of the insulating inner cylinder, the outer side wall of the insulating outer cylinder is clamped with a circular hole provided on the second frame by providing an annular groove, and the outside of the insulating outer cylinder is provided with an external gear ring to mesh with the disc gear fixed at one end of the horizontal long axis for transmission connection.

6. A fully automatic high-precision placement machine according to claim 5, characterized in that: The barrel head includes a tail barrel fixed at the end of the insulating inner barrel, a double control barrel arranged at one end of the tail barrel, a C-shaped spring connected between the double control barrel and the tail barrel, and a cleaning cloth wrapped at one end of the double control barrel. A plurality of protrusions are evenly arranged on the tail barrel, and the protrusions are stuck in the sliding grooves opened on the double control barrel.

Citation Information

Patent Citations

  • Double-head chip mounter

    CN118265286A