A fully automatic chip mounter for liquid crystal display modules

Abstract

The present invention provides a fully automatic chip placement machine for liquid crystal display modules, which is applied to the field of display module chip placement. The present invention flexibly switches the connection status between the upper and lower ends of the vertical cavity and the upper airflow channel 1 and the lower airflow channel 1 through the adjustment of the upper control component and the lower control component. With the help of the air pressure effect when the airflow flows, the valve plate in the vertical cavity is controlled to drive the auxiliary suction rod to move up and down for adjustment, so that when grabbing large-sized components, multiple auxiliary suction rods move down to be flush with the main suction rod, and the components are adsorbed together. When grabbing small-sized components, multiple auxiliary suction rods move up, and a single main suction rod is alone at the bottom to adsorb the components. There is no need to be equipped with placement heads of various specifications, which is beneficial to reducing the cost of manufacturing and using the chip placement machine, and there is no need to frequently switch different placement heads, which improves the efficiency of the device when mixing patches to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of display module patching, and in particular to a fully automatic patching machine for liquid crystal display modules. Background Art

[0002] A placement machine is a mechanical device that uses a moving placement head to accurately place components on a circuit board for placement and soldering. During the production and processing of LCD displays, a placement machine is required to place components on the module circuit board.

[0003] The liquid crystal display module in the prior art usually includes components of various specifications. These components are large and small, thin and thick. Some of the installation areas are in open positions, while others are in narrow positions. Therefore, in the process of mixed placement of components of different specifications, in order to ensure the stability of the placement operation, it is usually necessary to set corresponding placement heads according to the specifications of the various components, which not only increases the manufacturing and operating costs of the placement machine, but also easily affects the efficiency of the placement processing during the frequent switching of the placement heads.

[0004] Therefore, a fully automatic chip mounter for a liquid crystal display module is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present application is to adjust the placement head so that a single placement head can stably adapt to components of different specifications, without the need to equip a plurality of placement heads of different specifications for switching and use, which is conducive to reducing production costs, and without the need for overall switching, which is conducive to improving the efficiency of patch processing. Compared with the prior art, a fully automatic placement machine for liquid crystal display modules is provided, including a machine body, a mechanical arm is fixedly installed on the top of the machine body, and a vertically arranged vertical rod is installed at the end of the mechanical arm, and a placement head is installed at the bottom end of the vertical rod. The placement head includes a round table, and an upper cover plate and a lower cover plate fixedly covered on the upper and lower sides of the round table, and the bottom end of the vertical rod is located at the axis center of the top of the upper cover plate. Fixed connection, a main suction rod that penetrates to the bottom of the lower cover plate is vertically fixed at the internal axial position of the truncated cone, and the bottom end of the main suction rod is fixedly connected to a first suction cup, a plurality of vertical cavities arranged around the main suction rod are vertically opened inside the truncated cone, and an auxiliary suction rod that movably penetrates to the top of the upper cover plate and the bottom of the lower cover plate is vertically inserted into the vertical cavity, a valve plate that is slidably arranged in the vertical cavity is fixed on the outer end wall of the auxiliary suction rod, and the outer side size of the valve plate is matched with the internal size of the vertical cavity, the bottom end of the auxiliary suction rod is fixedly connected to a second suction cup, an upper control assembly that acts on the top of the vertical cavity is provided at the connection between the truncated cone and the upper cover plate, and a lower control assembly that acts on the bottom of the vertical cavity is provided at the connection between the truncated cone and the lower cover plate.

[0006] Furthermore, the vertical rod is rotatably installed in the end of the mechanical arm, a servo motor is fixedly installed at the end of the mechanical arm, and the driving shaft of the servo motor is arranged parallel to the vertical rod, and a transmission belt is connected between the driving shaft of the servo motor and the vertical rod.

[0007] Furthermore, a conveying mechanism is installed in the middle position of the top of the machine body, and a component delivery platform located on both sides of the conveying mechanism is installed on the top of the machine body. The conveying mechanism includes side panels symmetrically and vertically arranged on the top of the machine body, and symmetrically arranged conveying rollers are rotatably installed at both ends of the two side panels close to each other on one side end wall, and a conveyor belt is commonly connected between the two symmetrically arranged conveying rollers on the same side.

[0008] Furthermore, the conveyor belt is woven from metal wires in a grid structure, and the outer side of the metal wires is wrapped with a rubber layer. An air box arranged on the inner side of the conveyor belt is fixedly installed on the end wall of the side panel, and the top of the air box is provided with air holes evenly distributed just below the upper end wall of the conveyor belt.

[0009] Furthermore, transversely arranged guide rails are symmetrically fixed on the front and rear sides of the top of the machine body, and the side panels are slidably installed on the guide rails. An electric push rod arranged parallel to the guide rails is fixedly installed on the guide rails, and the telescopic end of the electric push rod is fixedly connected to one of the side panels.

[0010] Furthermore, a gear is rotatably installed in the middle of the guide rail, and the upper and lower sides of the gear are respectively meshed with gear rods symmetrically arranged on the left and right, and the two gear rods are respectively fixedly connected to the side plates on both sides.

[0011] Furthermore, the upper control component includes an upper airflow channel 1 opened at the connection position between the frustum and the upper cover plate, and surrounding and connecting the top ends of multiple vertical cavities. An upper chamber directly connected to the interior of the vertical cavity is opened at the top of the frustum, and an upper valve block is slidably installed in the upper chamber. An upper airflow channel 2 connecting the multiple upper chambers is opened around the top of the frustum. The lower control component includes a lower airflow channel 1 opened at the connection position between the frustum and the lower cover plate, and surrounding and connecting the bottom ends of multiple vertical cavities. A lower chamber directly connected to the interior of the vertical cavity is opened at the bottom of the frustum, and a lower valve block is slidably installed in the lower chamber. A lower airflow channel 2 connecting the multiple lower chambers is opened around the bottom of the frustum. The upper airflow channel 2 and the lower airflow channel 2 are externally connected to an air pump 1.

[0012] Furthermore, an upper slot hole matched with the upper flow channel 1 is formed at the top of the upper valve block, and a lower slot hole matched with the lower flow channel 1 is formed at the bottom of the lower valve block.

[0013] Furthermore, a sleeve movably mounted on the outer side of the upper end of the auxiliary suction rod is fixedly installed on the top of the upper cover plate, a connecting pipe arranged in a surrounding manner is fixedly connected between the top ends of the multiple sleeves, a channel one connected between the upper airflow channel one and the lower airflow channel one is vertically opened in the truncated table, and the channel one is directly connected to the connecting pipe, a channel two connected between the main suction rod and the channel one is opened in the truncated table, an inner tube one connected to the top end of the main suction rod is vertically fixed in the vertical rod, an air pump two is fixedly installed in the machine body, the top end of the inner tube one is rotatably connected to a sleeve one connected to the air pump two, and the sleeve one is fixedly installed at the end of the robotic arm.

[0014] Furthermore, a channel three connected with the lower airflow channel two is vertically opened in the truncated cone, an inner tube two sleeved on the outer side of the inner tube one is fixedly installed in the vertical rod, and the interior of the lower end of the inner tube two is connected with the upper airflow channel two, the interior of the lower end of the vertical rod is connected with the channel three, the top end of the inner tube two is rotatably connected with the sleeve two fixedly installed on the bottom of the sleeve one, the top end of the vertical rod is rotatably connected with the sleeve three fixedly installed on the bottom of the sleeve two, and the sleeve two and the sleeve three are connected with the air pump one.

[0015] Compared with the prior art, the advantages of this application are:

[0016] (1) The present application flexibly switches the connection status between the upper and lower ends of the vertical cavity and the upper airflow channel 1 and the lower airflow channel 1 by adjusting the upper control component and the lower control component. With the help of the air pressure during the flow of air, the valve plate in the vertical cavity is controlled to drive the auxiliary suction rod to move up and down. When grabbing large-sized components, multiple auxiliary suction rods move down to be flush with the main suction rod to adsorb the components together. When grabbing small-sized components, multiple auxiliary suction rods move up, and a single main suction rod is alone at the bottom to adsorb the components. There is no need to equip multiple specifications of placement heads, which is beneficial to reducing the cost of manufacturing and using the placement machine, and there is no need to frequently switch different placement heads, which to a certain extent improves the efficiency of the device when mixing patches.

[0017] (2) By providing air suction in the upper airflow channel 1 and the lower airflow channel 1 on the upper and lower sides of the vertical cavity, and by using an air pump 1 to switch the airflow direction in the upper airflow channel 2 and the lower airflow channel 2, the connection control between the upper airflow channel 1, the lower airflow channel 1 and the upper and lower ends of the vertical cavity is realized. After the airflow in the upper control component and the lower control component is controlled, the up and down movement control of many auxiliary suction rods can be flexibly realized. Under airflow control, it is helpful to reduce the space occupied by the upper control component and the lower control component in the placement head, which improves the structural rationality of the device during use to a certain extent.

[0018] (3) Through the connection among the connecting pipe, the hole 1, the hole 2, the inner tube 1 and the sleeve 1, the air pump 2 can simultaneously act on the main suction rod and the plurality of auxiliary suction rods arranged around it, as well as the upper airflow channel 1 and the lower airflow channel 1. It is not necessary to additionally arrange a plurality of air pumps 2, and the airflow in a plurality of structures can be sucked, which is beneficial to reducing the cost of manufacturing and using the device.

[0019] (4) By providing a servo motor to drive the vertical rod to rotate, the angle of the components adsorbed under the placement head can be adjusted. At the same time, by rotating sleeve one to connect to the top of inner tube one, inner tube two is sleeved on the outside of inner tube one and is rotationally connected to sleeve two, and the vertical rod is sleeved on the outside of inner tube two and is rotationally connected to sleeve three, during the rotation of the vertical rod, the airflow connection between the placement head, the upper control component, the lower control component and the air pump one and the air pump two will not be disturbed, thereby effectively ensuring the stability of the internal airflow during the operation of the device.

[0020] (5) The conveyor belt is formed by weaving a grid structure of metal wires, so that there are numerous through holes inside the conveyor belt, which makes it breathable from top to bottom. Combined with the suction of the air flow in the air box, negative pressure adsorption acts on the bottom of the module circuit board supported by the top of the conveyor belt. At the same time, by wrapping the rubber layer on the outside of the metal wire, not only can the contact wear of the conveyor belt on the module circuit board above it be reduced, but also the contact friction resistance between the conveyor belt and the module circuit board above it can be enhanced, which is conducive to further improving the stability of the module circuit board when being conveyed for patching.

[0021] (6) By sliding the side panels onto the guide rails and pushing them with the help of an electric push rod, the spacing between the left and right side panels can be flexibly adjusted, thereby improving the applicability of the conveying mechanism of the device to a certain extent. At the same time, by fixing the gear rods meshing on the upper and lower sides of the gear to the left and right side panels respectively, the left and right side panels can move synchronously and relatively, which can not only keep the module circuit board in the middle position of the device during the adjustment process, but also reduce the moving stroke of the electric push rod, further improving the flexibility and stability of the conveying mechanism during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present application;

[0023] Figure 2 A top view of the application;

[0024] Figure 3 A three-dimensional diagram of the vertical rod and the mounting head of this application;

[0025] Figure 4 For this application Figure 3 A top view of the structure in the middle;

[0026] Figure 5 For this application Figure 4 A cross-section of the structure at AA in the middle;

[0027] Figure 6 For this application Figure 5 Schematic diagram of the structure at B in the middle;

[0028] Figure 7 For this application Figure 6 Schematic diagram of the structure at C in the middle;

[0029] Figure 8 For this application Figure 4 A cross-sectional view of the structure at DD in the middle;

[0030] Fig. 9 For this application Figure 8 Schematic diagram of the structure at E in the middle;

[0031] Fig.10 This is a three-dimensional image from the top perspective of the placement head of this application;

[0032] Fig.11 This is a three-dimensional image from the bottom perspective of the placement head of this application;

[0033] Fig.12 This is a three-dimensional diagram of the control assembly of this application after it is unfolded;

[0034] Fig.13 A perspective view of the control assembly after expansion under this application;

[0035] Fig.14 This is a three-dimensional diagram of the conveying mechanism of this application.

[0036] Description of the numbers in the figure:

[0037] 1. Machine body; 101. Robotic arm; 102. Vertical rod; 103. Transmission belt; 104. Component delivery platform;

[0038] 2. Side plate; 201. Conveyor roller; 202. Conveyor belt; 203. Air box; 204. Guide rail; 205. Electric push rod; 206. Gear; 207. Gear rod;

[0039] 3. round table; 301. upper cover plate; 302. lower cover plate; 303. main suction rod; 304. first suction cup; 305. vertical cavity; 306. auxiliary suction rod; 307. valve plate; 308. second suction cup;

[0040] 4. Upper flow channel 1; 401. Upper chamber; 402. Upper valve block; 403. Upper flow channel 2; 404. Upper slot;

[0041] 5. Lower flow channel 1; 501. Lower chamber; 502. Lower valve block; 503. Lower flow channel 2; 504. Lower slot;

[0042] 6. Casing; 601. Connecting pipe; 602. Hole one; 603. Hole two; 604. Inner tube one; 605. Sleeve one; 606. Hole three; 607. Inner tube two; 608. Sleeve two; 609. Sleeve three. DETAILED DESCRIPTION

[0043] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0044] Embodiment one:

[0045] The present invention provides a fully automatic chip mounter for liquid crystal display modules. Figure 1 - Fig.14 , including a machine body 1, a mechanical arm 101 is fixedly installed on the top of the machine body 1, and a vertically arranged vertical rod 102 is installed at the end of the mechanical arm 101, and a placement head is installed at the bottom end of the vertical rod 102, and the placement head includes a round table 3, and an upper cover plate 301 and a lower cover plate 302 fixedly covered on the upper and lower sides of the round table 3, the bottom end of the vertical rod 102 is fixedly connected to the top axis position of the upper cover plate 301, and a main suction rod 303 penetrating to the bottom of the lower cover plate 302 is vertically fixed at the internal axis position of the round table 3, and the bottom end of the main suction rod 303 is fixedly connected to a first suction cup 304, and a plurality of surrounding A vertical cavity 305 is set in the main suction rod 303, and a secondary suction rod 306 is vertically inserted in the vertical cavity 305 and movably penetrates to the top of the upper cover plate 301 and the bottom of the lower cover plate 302. A valve plate 307 slidably set in the vertical cavity 305 is fixed on the outer end wall of the secondary suction rod 306, and the outer side size of the valve plate 307 is matched with the internal size of the vertical cavity 305. The bottom end of the secondary suction rod 306 is fixedly connected to a second suction cup 308, and an upper control component acting on the top of the vertical cavity 305 is set at the connection between the frustum 3 and the upper cover plate 301, and a lower control component acting on the bottom of the vertical cavity 305 is set at the connection between the frustum 3 and the lower cover plate 302.

[0046] During the operation of the device, the mechanical arm 101 installed on the top of the machine body 1 is powered on and started, driving the placement head connected to the bottom of the vertical rod 102 at its end to move, and the components are grabbed by the placement head, and placed on the LCD module circuit board after moving, completing the patch operation. When the placement head grabs the components, there will be high-speed airflow flowing from bottom to top in the main suction rod 303 and the auxiliary suction rod 306. When the first suction cup 304 connected to the bottom end of the main suction rod 303 and the second suction cup 308 connected to the bottom end of the auxiliary suction rod 306 are close to the outer surface of the component, the negative pressure formed by the airflow suction When pressed down, the outer surface of the component can be firmly adsorbed by the first suction cup 304 and the second suction cup 308, so that the placement head can grasp the component. When the component needs to be released, it is only necessary to interrupt the continuous supply of airflow in the main suction rod 303 and the auxiliary suction rod 306. After the airflow is interrupted, the negative pressure adsorption effect of the bottom of the main suction rod 303 and the auxiliary suction rod 306 on the component disappears, and the component falls off from the bottom of the placement head. After the grasping is completed, the component is released. When grasping and placing components of different sizes, the main suction rod 303 and the auxiliary suction rod 306 in the placement head can be adjusted accordingly.

[0047] When grasping large-sized components, air suction is generated at the lower end of the vertical cavity 305 by adjusting the upper control assembly and the lower control assembly. Under the action of air pressure, the valve plate 307 slidingly arranged in the vertical cavity 305 drives the auxiliary suction rod 306 to move downward, so that the second suction cup 308 at the bottom end of the auxiliary suction rod 306 is flush with the first suction cup 304 at the bottom end of the main suction rod 303. At this time, when the placement head acts on the large-sized components, the first suction cup 304 and multiple second suction cups 308 are attached to the outer surface of the large-sized components together, and negative pressure adsorption is performed on the outer surface of the large-sized components at the same time, which can effectively improve the placement head's grasping stability for large-sized components.

[0048] When grabbing small-sized components, due to the small size of small-sized components, if there are taller components around their installation positions, during the small-sized component placement process, the larger placement head will be blocked. In order to ensure the stable release of small-sized components in narrow positions, it is often necessary to switch to use narrow and long placement heads in the prior art to achieve the grabbing and placement operations of small-sized components. Placement heads of different specifications correspond to components of different specifications. This requires a single placement machine to be equipped with multiple robotic arms 101, or to be equipped with placement heads of multiple specifications according to actual use requirements to achieve flexible switching. This greatly increases the cost of manufacturing and using the placement machine, and if different placement heads are switched frequently, the work efficiency when mixed placement of components of different specifications will be greatly reduced.

[0049] In the present device, when switching to grabbing small-sized components, air suction is generated at the upper end of the vertical cavity 305 through the adjustment of the upper control assembly and the lower control assembly. Under the action of air pressure, the valve plate 307 slidingly arranged in the vertical cavity 305 will drive the auxiliary suction rod 306 to move upward, and the auxiliary suction rod 306 carries the second suction cup 308 and retracts upward. At this time, there is only a single vertically arranged main suction rod 303 protruding outward below the placement head. When the first suction cup 304 fixed at the bottom end of the main suction rod 303 contacts the outer surface of the small-sized component, a negative pressure grabbing operation is performed on it. In the process of grabbing small-sized components, multiple auxiliary suction rods 306 arranged around the outside are retracted upward, so that only a long straight main suction rod 303 exists below the placement head to grab the small-sized components. There is no need to switch the placement head, the manufacturing and use costs are greatly reduced, and the adjustment process is fast and convenient, which can effectively improve the efficiency of the device in mixed placement of components of different specifications.

[0050] See also Fig. 9 , Fig.12 and Fig.13 The upper control assembly includes an upper flow passage 1-4 opened at the connection position between the truncated table 3 and the upper cover plate 301 and surrounding and communicating between the top ends of the plurality of vertical cavities 305. The top of the truncated table 3 is provided with an upper chamber 401 directly communicating with the interior of the vertical cavity 305, and an upper valve block 402 is slidably installed in the upper chamber 401. The top of the truncated table 3 is surrounded by an upper flow passage 2-403 communicating with the plurality of upper chambers 401. The lower control assembly includes a lower flow passage 1-5 opened at the connection position between the truncated table 3 and the lower cover plate 302 and surrounding and communicating between the bottom ends of the plurality of vertical cavities 305. The bottom of the truncated table 3 is provided with a valve block 402 connected to the vertical cavity 305. 5, and a lower valve block 502 is slidably installed in the lower chamber 501, a lower airflow channel 2 503 connected between the multiple lower chambers 501 is opened around the bottom of the round table 3, the upper airflow channel 2 403 and the lower airflow channel 2 503 are externally connected to the air pump 1, and the air pump 1 is fixedly installed in the machine body 1, the airflow direction in the upper airflow channel 2 403 and the lower airflow channel 2 503 can be flexibly switched, the top of the upper valve block 402 is opened with an upper slot hole 404 matched with the upper airflow channel 1 4, and the bottom of the lower valve block 502 is opened with a lower slot hole 504 matched with the lower airflow channel 1 5.

[0051] During the operation of the device, the air flows in the upper airflow channel 4 and the lower airflow channel 5. At the same time, since the upper airflow channel 403 and the lower airflow channel 503 are connected with the air pump 1 in the machine body 1, the airflow can be sucked or filled in the plurality of upper chambers 401 and the lower chamber 501 through the air pump 1, and the flow direction of the airflow in the upper chamber 401 and the lower chamber 501 can be controlled by the air pump 1.

[0052] During the use of the device, when grabbing large-sized components, it is necessary to move the numerous auxiliary suction rods 306 downward to the lowest position so that their bottom ends are flush with the main suction rod 303. During this process, the air pump applies suction to the lower airflow channel 2 503, and the airflow is continuously filled into the upper airflow channel 2 403. The suction force of the airflow in the lower airflow channel 2 503 acts on the numerous lower chambers 501 simultaneously. Under the action of the airflow suction, the lower valve block 502 moves out from the bottom end of the vertical cavity 305 and slides into the corresponding lower cavity 501, so that the lower airflow channel 1 5 is connected with the bottom end of the vertical cavity 305, and the airflow sucked in the lower airflow channel 1 5 acts on the bottom end of the vertical cavity 305. At the same time, since the upper airflow channel 2 403 is continuously filled with air by the air pump 1, the filling of the airflow The valve body 402 is pressed against the upper surface of the main suction rod 303, and the upper suction cup 308 at the bottom of the main suction rod 303 is adjusted to be flush with the first suction cup 304 at the bottom of the main suction rod 303, thereby increasing the negative pressure suction point when grabbing large-sized components.

[0053] During the use of the device, when grabbing small-sized components, the air pump 1 adjusts the airflow direction in the upper airflow channel 2 403 and the lower airflow channel 2 503, so that the upper airflow channel 2 403 is suctioned, and the lower airflow channel 2 503 is continuously filled with air. Under the action of airflow suction, the upper valve block 402 moves into the upper chamber 401, and the blockage between the upper airflow channel 1 4 and the top of the vertical cavity 305 is lost, so that the top of the vertical cavity 305 is connected with the upper airflow channel 1 4 again, and the airflow suction in the upper airflow channel 1 4 acts on the top of the vertical cavity 305, while the airflow in the lower airflow channel 2 503 is continuously filled with air. The lower valve block 502 in the lower chamber 501 is filled, so that it is pushed into the bottom end of the vertical cavity 305, blocking the bottom end of the vertical cavity 305 and the lower airflow channel 5, so that the airflow suction in the lower airflow channel 5 no longer acts on the bottom end of the vertical cavity 305. In this state, the airflow suction is performed on the top of the vertical cavity 305 through the upper airflow channel 4, so that the valve plate 307 in the vertical cavity 305 drives the auxiliary suction rod 306 to move upward, and the auxiliary suction rod 306 that originally moved downward and then protruded downward moves upward and is then retracted into the vertical cavity 305, so that the main suction rod 303 is independently erected at the lower position of the placement head, so that small-scale components can be flexibly grasped.

[0054] The device provides airflow suction in the upper airflow channel 14 and the lower airflow channel 15 on the upper and lower sides of the vertical cavity 305, and switches the airflow direction in the upper airflow channel 2 403 and the lower airflow channel 2 503 with the help of an air pump 1, so as to realize the connection control of the upper airflow channel 14, the lower airflow channel 15 and the upper and lower ends of the vertical cavity 305, so that after the airflow in the upper control component and the lower control component is controlled, the up and down movement control of the plurality of auxiliary suction rods 306 can be flexibly realized, and the airflow control is conducive to reducing the upper control component and the lower control component during mounting. The space occupied in the head improves the structural rationality of the device during use to a certain extent. The upper slot hole 404 adapted to the upper airflow channel 4 is opened at the top of the upper valve block 402, and the lower slot hole 504 adapted to the lower airflow channel 5 is opened at the bottom of the lower valve block 502. Even when the upper valve block 402 and the lower valve block 502 block the connection between the upper airflow channel 4, the lower airflow channel 5 and the vertical cavity 305, the independent flow of the airflow in the upper airflow channel 4 and the lower airflow channel 5 can be guaranteed to be smooth and stable.

[0055] See also Figure 3 , the vertical rod 102 is rotatably installed in the end of the mechanical arm 101, and a servo motor is fixedly installed at the end of the mechanical arm 101, and the driving shaft of the servo motor is arranged parallel to the vertical rod 102, and a transmission belt 103 is connected between the driving shaft of the servo motor and the vertical rod 102. During the operation of the device, the servo motor installed at the end of the mechanical arm 101 is powered on and started, driving the vertical rod 102 connected to its driving shaft to rotate. By rotating the vertical rod 102, the placement head installed below can be driven to rotate around the vertical rod 102, thereby adjusting the angle of the components adsorbed below the placement head, further ensuring the precise stability when the placement head grabs the components for patch release.

[0056] See also Figure 5 - Fig.10 A sleeve 6 movably sleeved on the outer side of the upper end of the auxiliary suction rod 306 is fixedly installed on the top of the upper cover plate 301, and a connecting pipe 601 arranged around is fixedly connected between the top ends of the multiple sleeves 6. A channel 602 connected between the upper airflow channel 4 and the lower airflow channel 5 is vertically opened in the truncated table 3, and the channel 602 is directly connected to the connecting pipe 601. A channel 2 603 connected between the main suction rod 303 and the channel 1 602 is opened in the truncated table 3. An inner tube 1 604 connected to the top of the main suction rod 303 is vertically fixed in the vertical rod 102. An air pump 2 is fixedly installed in the machine body 1. The top end of the inner tube 1 604 is rotatably connected to a sleeve 1 605 connected to the air pump 2, and the sleeve 1 605 is fixedly installed at the end of the robot arm 101.

[0057] During the operation of the device, the air pump 2 installed in the machine body 1 is powered on and started to suck the air in the sleeve 1 605 fixedly connected thereto, and the external air enters through the first suction cup 304 installed at the bottom of the main suction rod 303, and then flows to the sleeve 1 605 along the inner tube 1 604. At the same time, the external air enters through the second suction cup 308 installed at the bottom of the auxiliary suction rod 306, passes through the auxiliary suction rod 306 and enters the corresponding sleeve 6, and is connected through multiple connecting pipes 601, as well as the connection between the channel 1 602 and the channel 2 603, so that the air enters the main suction rod 303, enters the sleeve 1 605 through the inner tube 1 604, and finally flows to the air pump 2 together. Moreover, since the upper airflow channel 1 4 and the lower airflow channel 1 5 are both connected to the channel 1 602, the airflow suction effect will act synchronously in the upper airflow channel 1 4 and the lower airflow channel 1 5.

[0058] During use of the device, through the connection of the connecting pipe 601, the hole 1 602, the hole 2 603, the inner tube 1 604 and the sleeve 1 605, the air pump 2 can simultaneously act on the main suction rod 303 and the numerous surrounding auxiliary suction rods 306, as well as the upper airflow channel 1 4 and the lower airflow channel 1 5. There is no need to set up multiple air pumps 2 additionally, so as to achieve the suction of airflow in multiple structures, which is beneficial to reducing the cost of manufacturing and using the device. At the same time, by rotating the sleeve 1 605 to connect to the top of the inner tube 1 604, the connection between the inner tube 1 604 and the sleeve 1 605 will not be affected during the rotation of the vertical rod 102, which is beneficial to ensuring the stability of the airflow circulation in the device.

[0059] See also Figure 6 - Figure 7 A channel three 606 connected to the lower airflow channel two 503 is vertically opened in the truncated table 3, an inner tube two 607 sleeved on the outer side of the inner tube one 604 is fixedly installed in the vertical rod 102, and the lower end of the inner tube two 607 is connected to the upper airflow channel two 403, the lower end of the vertical rod 102 is connected to the channel three 606, the top end of the inner tube two 607 is rotatably connected to the sleeve two 608 fixedly installed at the bottom of the sleeve one 605, the top end of the vertical rod 102 is rotatably connected to the sleeve three 609 fixedly installed at the bottom of the sleeve two 608, and the sleeve two 608 and the sleeve three 609 are connected to the air pump one.

[0060] During the operation of the device, a pipe connected to the third channel 606 is fixedly connected to the lower outer end wall of the vertical rod 102, and another pipe connected to the upper air channel 2 403 is fixedly connected to the lower outer end wall of the inner tube 2 607. With the two pipes connected, the inner tube 2 607 is sleeved on the outer side of the inner tube 1 604 and is rotatably connected to the sleeve 2 608. The vertical rod 102 is sleeved on the outer side of the inner tube 2 607 and is rotatably connected to the sleeve 3 609, forming a channel connecting the sleeve 2 608, the inner tube 2 607, and the upper air channel 2 403, as well as a channel connecting the sleeve 3 609, the vertical rod 102, the third channel 606, and the lower air channel 2 503, so that the internal airflow is normal when the upper control component and the lower control component of the air pump are adjusted, and the airflow will not be interrupted due to the rotation of the vertical rod 102, thereby ensuring the stability of the equipment during operation control.

[0061] See also Figure 1 , Figure 2 and Fig.14 A conveying mechanism is installed in the middle position of the top of the machine body 1, and a component delivery table 104 located on both sides of the conveying mechanism is installed on the top of the machine body 1. The conveying mechanism includes side panels 2 symmetrically and vertically arranged on the top of the machine body 1, and the two side panels 2 are rotatably installed with symmetrically arranged conveying rollers 201 at both ends of the end wall of one side close to each other, and the conveying rollers 201 are externally connected to a driving unit, which can be a motor. A conveyor belt 202 is commonly sleeved between the two symmetrically arranged conveying rollers 201 on the same side. The conveyor belt 202 is woven from metal wires in a grid structure, and the outer side of the metal wires is wrapped with a rubber layer. An air box 203 arranged on the inner side of the conveyor belt 202 is fixedly installed on the end wall of the side panel 2, and the air box 203 is connected to the air pump.

[0062] During the operation of the device, the driving unit connected to the conveyor roller 201 is powered on and started, driving the conveyor roller 201 to rotate, thereby rotating the conveyor belt 202 on the outside of the conveyor roller 201 on the same side. The LCD module circuit board to be processed is placed on the top of the conveyor belts 202 symmetrically arranged on the left and right sides, and is transported backwards through the rotation of the conveyor belts 202. During the transportation process, the mechanical arm 101 controls the mounting head installed at the lower end of the vertical rod 102 to grab components of different specifications from the component delivery tables 104 on both sides as needed, and mount them on the module circuit board to complete the LCD module SMT processing. The conveyor belt 202 is formed by using metal wires in a grid structure so that the conveyor There are numerous through holes inside the belt 202, which makes it breathable from top to bottom. With the suction of the airflow in the air box 203, negative pressure adsorption acts on the bottom of the module circuit board supported by the top of the conveyor belt 202, which can effectively improve the stability of the module circuit board on the conveyor belt 202, making it less likely to shift, which is beneficial to improving the stability of the LCD module circuit board being processed by the device. At the same time, by wrapping the rubber layer on the outside of the metal wire, not only can the contact wear of the conveyor belt 202 on the module circuit board above it be reduced, but also the contact friction resistance between the conveyor belt 202 and the module circuit board above it can be enhanced, which is beneficial to further improve the stability of the module circuit board when being conveyed for patching.

[0063] See also Fig.14 The top of the air box 203 is provided with air holes evenly distributed just below the upper end wall of the conveyor belt 202. The top of the machine body 1 is symmetrically fixed with transversely arranged guide rails 204 on both sides. The side panels 2 are slidably mounted on the guide rails 204. An electric push rod 205 arranged parallel to the guide rails 204 is fixedly mounted, and the telescopic end of the electric push rod 205 is fixedly connected to one of the side panels 2. A gear 206 is rotatably mounted in the middle of the guide rail 204, and the upper and lower sides of the gear 206 are respectively meshed with left and right symmetrically arranged gear rods 207. The two gear rods 207 are respectively fixedly connected to the side panels 2 on both sides. The operation process of the device In the embodiment, by sliding the side panel 2 onto the guide rail 204 and pushing it with the help of the electric push rod 205, the spacing between the left and right side panels 2 can be flexibly adjusted, so that the conveying mechanism can convey module circuit boards of different specifications after adjustment. At the same time, by fixing the gear rods 207 meshing on the upper and lower sides of the gear 206 to the left and right side panels 2 respectively, the left and right side panels 2 can move synchronously and relatively, which can not only keep the module circuit board in the middle position of the device at all times during the adjustment process, but also reduce the moving stroke of the electric push rod 205, effectively ensuring the flexibility and stability of the device during use.

[0064] The above are only the best implementation methods adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A fully automatic chip mounter for liquid crystal display modules, comprising a machine body (1), characterized in that: A mechanical arm (101) is fixedly mounted on the top of the machine body (1), and a vertically arranged vertical rod (102) is mounted at the end of the mechanical arm (101); a placement head is mounted at the bottom end of the vertical rod (102); the placement head comprises a truncated table (3), and an upper cover plate (301) and a lower cover plate (302) fixedly covering the upper and lower sides of the truncated table (3); the bottom end of the vertical rod (102) is fixedly connected to the top axis position of the upper cover plate (301); a main suction rod (303) penetrating to the bottom of the lower cover plate (302) is vertically fixed at the internal axis position of the truncated table (3); the bottom end of the main suction rod (303) is fixedly connected to a first suction cup (304); a plurality of vertically arranged holes are provided inside the truncated table (3) to surround the main suction rod (301) and to prevent the main suction rod (303) from being damaged. A vertical cavity (305) is provided on the upper cover (303), and a secondary suction rod (306) is vertically inserted in the vertical cavity (305) and movably penetrates the top of the upper cover (301) and the bottom of the lower cover (302); a valve plate (307) is fixed on the outer end wall of the secondary suction rod (306) and is slidably arranged in the vertical cavity (305), and the outer size of the valve plate (307) is matched with the inner size of the vertical cavity (305); a second suction cup (308) is fixedly connected to the bottom end of the secondary suction rod (306); an upper control component acting on the upper part of the vertical cavity (305) is provided at the connection between the truncated table (3) and the upper cover (301), and a lower control component acting on the lower part of the vertical cavity (305) is provided at the connection between the truncated table (3) and the lower cover (302); The upper control assembly comprises an upper flow passage (4) opened at the connection position between the truncated platform (3) and the upper cover plate (301) and surrounding and communicating between the top ends of the plurality of vertical chambers (305); an upper chamber (401) directly communicating with the interior of the vertical chamber (305) is opened at the top of the truncated platform (3), and an upper valve block (402) is slidably mounted in the upper chamber (401); an upper flow passage (403) connecting between the plurality of upper chambers (401) is opened at the top of the truncated platform (3); the lower control assembly comprises an upper flow passage (404) opened at the top of the truncated platform (3) and surrounding and communicating between the plurality of upper chambers (401); (3) and the lower cover plate (302), and surrounds a lower air flow channel (5) connected between the bottom ends of the plurality of vertical cavities (305); the bottom of the truncated platform (3) is provided with a lower chamber (501) directly connected to the inside of the vertical chamber (305), and a lower valve block (502) is slidably installed in the lower chamber (501); the bottom of the truncated platform (3) is surrounded by a lower air flow channel (503) connected between the plurality of lower chambers (501); the upper air flow channel (403) and the lower air flow channel (503) are externally connected to an air pump (1); An upper slot hole (404) adapted to the upper flow channel 1 (4) is formed at the top of the upper valve block (402), and a lower slot hole (504) adapted to the lower flow channel 1 (5) is formed at the bottom of the lower valve block (502).

2. A fully automatic chip mounter for liquid crystal display modules according to claim 1, characterized in that: The vertical rod (102) is rotatably mounted in the end of the mechanical arm (101); a servo motor is fixedly mounted on the end of the mechanical arm (101); a drive shaft of the servo motor is arranged parallel to the vertical rod (102); and a transmission belt (103) is connected between the drive shaft of the servo motor and the vertical rod (102).

3. The fully automatic chip mounter for liquid crystal display modules according to claim 1, characterized in that: A conveying mechanism is installed at the middle position of the top of the machine body (1), and component delivery tables (104) located on both sides of the conveying mechanism are installed on the top of the machine body (1). The conveying mechanism comprises side panels (2) symmetrically arranged vertically on the top of the machine body (1), and symmetrically arranged conveying rollers (201) are rotatably installed at both ends of the two side panels (2) close to each other on one side end wall, and a conveyor belt (202) is commonly sleeved between the two symmetrically arranged conveying rollers (201) on the same side.

4. A fully automatic chip mounter for liquid crystal display modules according to claim 3, characterized in that: The conveyor belt (202) is woven from metal wires in a grid-type structure, and the outer side of the metal wires is wrapped with a rubber layer. An air box (203) arranged on the inner side of the conveyor belt (202) is fixedly mounted on the end wall of the side plate (2), and the top of the air box (203) is provided with air holes evenly distributed just below the upper end wall of the conveyor belt (202).

5. The fully automatic chip mounter for liquid crystal display modules according to claim 4, characterized in that: Laterally arranged guide rails (204) are symmetrically fixed on the front and rear sides of the top of the machine body (1); the side panels (2) are slidably mounted on the guide rails (204); an electric push rod (205) arranged parallel to the guide rails (204) is fixedly mounted on the guide rails (204); and the telescopic end of the electric push rod (205) is fixedly connected to one of the side panels (2).

6. A fully automatic chip mounter for liquid crystal display modules according to claim 5, characterized in that: A gear (206) is rotatably mounted in the middle of the guide rail (204), and gear rods (207) symmetrically arranged on the upper and lower sides of the gear (206) are respectively meshed with gear rods (207) respectively, and the two gear rods (207) are respectively fixedly connected to the side plates (2) on both sides.

7. The fully automatic chip mounter for liquid crystal display modules according to claim 1, characterized in that: A sleeve (6) movably sleeved on the outer side of the upper end of the auxiliary suction rod (306) is fixedly installed on the top of the upper cover plate (301), and a connecting pipe (601) arranged around the top of the plurality of sleeves (6) is fixedly connected, and a hole (602) connecting between the upper airflow channel (4) and the lower airflow channel (5) is vertically opened in the truncated table (3), and the hole (602) is directly connected to the connecting pipe (601), and the truncated table (3) is opened A second hole (603) is provided which is connected between the main suction rod (303) and the first hole (602); an inner tube (604) which is connected to the top of the main suction rod (303) is vertically fixed in the vertical rod (102); an air pump (2) is fixedly installed in the machine body (1); the top of the inner tube (604) is rotatably connected to a sleeve (605) which is connected to the air pump (2); and the sleeve (605) is fixedly installed at the end of the mechanical arm (101).

8. The fully automatic chip mounter for liquid crystal display modules according to claim 7, characterized in that: A channel three (606) is vertically opened in the truncated table (3) and is connected to the lower airflow channel two (503). An inner tube two (607) sleeved on the outer side of the inner tube one (604) is fixedly installed in the vertical rod (102), and the lower end of the inner tube two (607) is connected to the upper airflow channel two (403). The lower end of the vertical rod (102) is connected to the channel three (606). The top end of the inner tube two (607) is rotatably connected to the sleeve two (608) fixedly installed at the bottom of the sleeve one (605). The top end of the vertical rod (102) is rotatably connected to the sleeve three (609) fixedly installed at the bottom of the sleeve two (608). The sleeve two (608) and the sleeve three (609) are connected to the air pump one.

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