Chip mounter

Abstract

The utility model relates to the technical field of electronic mounting, in particular to a chip mounter. The chip mounter comprises a feeding driving mechanism, a circuit board driving mechanism and a double-chip-head carrying device, the feeding driving mechanism comprises a first driving assembly and a feeder, the feeder is connected with the first driving assembly, and the first driving assembly is used for driving the feeder to be alternately switched between stations; the circuit board driving mechanism is located on one side of the feeding driving mechanism. The double-chip-mounting-head carrying device is erected above the feeding device and the circuit board driving mechanism, the double-chip-mounting-head carrying device comprises a first chip mounting execution mechanism and a second chip mounting execution mechanism, and the first chip mounting execution mechanism and the second chip mounting execution mechanism are used for transferring elements at the corresponding feeding stations to the circuit board. According to the chip mounter, feeding can be achieved by arranging one feeder, through mutual cooperation of the double chip mounting heads, the production efficiency is improved, meanwhile, the number of the feeders can be reduced, the manufacturing cost is reduced, and the feeding time of the feeders is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic pasting technical field, especially a chip mounter. BACKGROUND

[0002] The prior art chip mounter usually sets up multiple mounting heads, each of which is separately matched with a feeding feeder, and the multiple mounting heads are independent of each other and move independently to transfer components at the corresponding feeding feeders, and finally realize mounting, effectively improving production efficiency.

[0003] However, in the above structure, each mounting head needs to be matched with a feeder assembly, resulting in an increase in the number of feeder assemblies, a doubling of the feeding time of the feeder, and an increase in the manufacturing cost. SUMMARY

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a chip mounter to solve the problem that in the prior art, multiple mounting heads of the chip mounter need to be separately matched with a feeder assembly, resulting in a long feeding time of the feeder and an increase in the manufacturing cost.

[0005] The chip mounter provided by the embodiments of the utility model comprises:

[0006] A feeding driving mechanism comprising a first driving assembly and a feeder, the feeder being connected with the first driving assembly, the first driving assembly being used to drive the feeder to move in a first direction, so as to alternately switch the feeder between the first feeding station and the second feeding station;

[0007] A circuit board driving mechanism located on one side of the feeding driving mechanism in a second direction, the second direction being perpendicular to the first direction, the circuit board driving mechanism being used to place a circuit board;

[0008] A double-chip-head carrying device erected above the feeding driving mechanism and the circuit board driving mechanism, the double-chip-head carrying device comprising a first chip execution mechanism and a second chip execution mechanism spaced apart in the first direction, the first chip execution mechanism comprising a first chip driving assembly and a first chip execution assembly, the first chip execution assembly being connected with the first chip driving assembly, the first chip driving assembly being used to drive the first chip execution assembly to move in the second direction, so as to transfer components at the first feeding station to the circuit board in the circuit board driving mechanism, the second chip execution mechanism comprising a second chip driving assembly and a second chip execution assembly, the second chip execution assembly being connected with the second chip driving assembly, the second chip driving assembly being used to drive the second chip execution assembly to move in the second direction, so as to transfer components at the second feeding station to another circuit board in the circuit board driving mechanism.

[0009] In an embodiment, the first driving assembly comprises a first motor, a first screw rod, a first guide rail, and a feeding platform; opposite sides of the first screw rod are provided with the first guide rail parallel to the first screw rod, the feeding platform is connected with the first screw rod through a first nut and connected with the first guide rail through a first sliding block, and the first motor is connected to the first screw rod.

[0010] In an embodiment, the feeding platform is provided with a plurality of mounting grooves, the plurality of mounting grooves are arranged at intervals in the second direction, and the plurality of mounting grooves are respectively used for mounting different types of feeders; the feeding driving mechanism further comprises a suction nozzle library, the suction nozzle library is arranged at the feeding platform, and the suction nozzle library is used for accommodating different types of suction nozzles.

[0011] In an embodiment, the double-patch head carrying device further comprises a gantry, the first patch driving assembly and the second patch driving assembly are arranged on two sides of the gantry in the first direction, the first patch executing assembly comprises a second motor, a second screw rod, a second guide rail, and a first mounting plate; opposite sides of the second screw rod are provided with the second guide rail parallel to the second screw rod, the first mounting plate is connected with the second screw rod through a second nut and connected with the second guide rail through a second sliding block, the second motor is connected to the second screw rod, and the first patch executing assembly is arranged on the first mounting plate.

[0012] In an embodiment, the first patch executing assembly further comprises a first up-down motion driving assembly, a first rotary motion driving assembly, and a first suction nozzle assembly, the first up-down motion driving assembly is arranged at the first mounting plate and connected with the first rotary motion driving assembly and the first suction nozzle assembly, the first suction nozzle assembly is used for picking and placing elements, and the first up-down motion driving assembly cooperates with the first rotary motion driving assembly to adjust the patch position of the elements on the first suction nozzle assembly.

[0013] In an embodiment, the first up-down motion driving assembly comprises:

[0014] two first synchronous pulleys arranged at intervals in a third direction and rotatably arranged on the first mounting plate;

[0015] a first synchronous belt arranged at the two first synchronous pulleys;

[0016] a ball spline shaft fixing seat arranged on the first mounting plate;

[0017] A ball spline shaft is sleeved and drivingly connected to the ball spline shaft fixing seat. A first end of the ball spline shaft is connected to the first synchronous belt through a connecting block in the third direction. A first nozzle assembly is arranged at a second end of the ball spline shaft.

[0018] A third motor is connected to one of the first synchronous pulleys to adjust the height of the first nozzle assembly.

[0019] In an embodiment, the first rotary motion driving assembly comprises:

[0020] A ball spline nut is sleeved and drivingly connected to the ball spline shaft.

[0021] Two second synchronous pulleys are arranged in the second direction. One of the second synchronous pulleys is rotatably arranged on the first mounting plate. The other second synchronous pulley is sleeved on the ball spline nut.

[0022] A second synchronous belt is arranged on the two second synchronous pulleys.

[0023] A fourth motor is arranged on the first mounting plate and connected to the second synchronous pulley arranged on the first mounting plate to adjust the angle of the first patch executing assembly.

[0024] In an embodiment, a camera recognition assembly is further included. The camera recognition assembly comprises a first camera and a second camera. The first camera and the second camera are arranged between the feeding driving mechanism and the circuit board driving mechanism. The first camera and the second camera are electrically connected to the double-patch head carrying device. When the first patch executing assembly moves above the first camera, the first camera can recognize the component. When the second patch executing assembly moves above the second camera, the second camera can recognize the component.

[0025] In an embodiment, a plurality of first patch executing assemblies are arranged on the first mounting plate in the second direction.

[0026] In an embodiment, the circuit board driving mechanism comprises a fifth motor, a third screw rod, a third guide rail, and a circuit board stage. The third guide rail is parallel to the third screw rod and arranged on opposite sides of the third screw rod. The circuit board stage is connected to the third screw rod through a third nut and connected to the third guide rail through a third sliding block. The fifth motor is connected to the third screw rod.

[0027] Compared with the prior art, the patching machine provided by the embodiment of the utility model has the beneficial effects that: the first patching execution mechanism and the second patching execution mechanism can be fed by only one feeder, the production efficiency is improved, the number of feeders is reduced, and the manufacturing cost and the feeding time of the feeder are effectively reduced.

[0028] Specifically, the feeder is arranged at the first driving assembly, the first driving assembly can drive the feeder to move in the first direction, so that the feeder can be alternately switched between the first feeding station and the second feeding station. The first patching driving assembly can drive the first patching execution assembly to transfer the component sent out by the feeder at the first feeding station to the circuit board of the circuit board driving mechanism, and after the first patching execution assembly feeds, the first driving assembly can drive the feeder to move to the second feeding station. At this time, the second patching driving assembly can drive the second patching execution assembly to transfer the component sent out by the feeder at the second feeding station to the position of the circuit board driving mechanism, and quickly enter the state of waiting for patching. After the first patching execution assembly completes the patching operation, the second patching execution assembly can quickly place the component at another circuit board of the circuit board driving mechanism for patching. Such repeated and alternating operation is repeated until all patching steps are completed. As can be seen, the application ensures the production efficiency, reduces the number of feeders, and effectively reduces the manufacturing cost and the feeding time of the feeder. BRIEF DESCRIPTION OF DRAWINGS

[0029] The specific implementation of the utility model will be further described in detail below in combination with the drawings and examples, and the drawings are as follows:

[0030] Figure 1 is a perspective view of the patching machine provided by the embodiment of the utility model;

[0031] Figure 2 is Figure 1 is a partial enlarged view of position A in the figure;

[0032] Figure 3 is Figure 2 is a partial enlarged view of position B in the figure;

[0033] Figure 4 is Figure 1 is a partial enlarged view of position C in the figure.

[0034] The reference signs in the figure are as follows:

[0035] 1000, patching machine;

[0036] 10, feeding driving mechanism; 11, first driving assembly; 111, first motor; 112, first screw rod; 113, first guide rail; 114, feeding table; 1141, mounting groove; 12, feeder;

[0037] 20, circuit board driving mechanism; 21, fifth motor; 22, third screw rod; 23, third guide rail; 24, circuit board stage;

[0038] Double patch head carrying device; 31, first patch execution mechanism; 311, first patch driving assembly; 3111, second motor; 3112, second screw rod; 3113, second guide rail; 3114, first mounting plate; 312, first patch execution assembly; 3121, first up-down movement driving assembly; 3121a, first synchronous pulley; 3121b, first synchronous belt; 3121c, ball spline shaft fixing seat; 3121d, ball spline shaft; 3121e, third motor; 3122, first rotary movement driving assembly; 3122a, ball spline nut; 3122b, second synchronous pulley; 3122c, second synchronous belt; 3122d, fourth motor; 3123, first suction nozzle assembly; 3124, first mark identification assembly; 3124a, third camera; 32, second patch execution mechanism; 321, second patch driving assembly; 322, second patch execution assembly; 33, gantry; 331, cross beam; 332, stand column;

[0039] 40, camera identification assembly; 41, first camera; 42, second camera. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Now, the preferred embodiments of the present application will be described in detail with reference to the drawings.

[0041] The patch machine 1000 provided by the embodiments of the present application is shown in the drawings, which is provided with a first feeding station and a second feeding station. Figures 1-3 The patch machine 1000 includes a feeding driving mechanism 10, a circuit board driving mechanism 20 and a double patch head carrying device 30. The feeding driving mechanism 10 includes a first driving assembly 11 and a feeder 12. The feeder 12 is connected with the first driving assembly 11. The first driving assembly 11 is used to drive the feeder 12 to move in the first direction (for example, the X direction shown in the drawings) so as to alternately switch the feeder 12 between the first feeding station and the second feeding station. Figure 1 The circuit board driving mechanism 20 is located at the second direction (for example, the Y direction shown in the drawings) of the feeding driving mechanism 10. The double patch head carrying device 30 is located at the third direction (for example, the Z direction shown in the drawings) of the circuit board driving mechanism 20. Figure 1The second direction is perpendicular to the first direction; the double-head carrier 30 is arranged above the first driving mechanism 10 and the board driving mechanism 20, and the double-head carrier 30 comprises a first head driving assembly 31 and a second head driving assembly 32 arranged in the first direction, the first head driving assembly 31 comprises a first head driving component 311 and a first head executing component 312, the first head executing component 312 is connected with the first head driving component 311, and the first head driving component 311 is used for driving the first head executing component 312 to move, so as to transfer the components at the first feeding station to the board driving mechanism 20 for pasting; the second head driving assembly 32 comprises a second head driving component 321 and a second head executing component 322, the second head executing component 322 is connected with the second head driving component 321, and the second head driving component 321 is used for driving the second head executing component 322 to move, so as to transfer the components at the second feeding station to the board driving mechanism 20 for pasting. The present application can solve the problem that the plurality of pasting heads of the existing patching machine 1000 need to be separately matched with the feeder 12 component, resulting in the increase of manufacturing cost and the long feeding time of the feeder. The patching device of the present application can meet the feeding of the first head driving assembly 31 and the second head driving assembly 32 by arranging only one feeder 12 component, thereby improving the production efficiency, reducing the number of feeders 12, and effectively reducing the manufacturing cost and the feeding time of the feeder.

[0042] Specifically, the feeder 12 is arranged at the first driving component 11, the first driving component 11 can drive the feeder 12 to move in the first direction, so that the feeder 12 can be alternately switched between the first feeding station and the second feeding station. The first head driving component 311 can drive the first head executing component 312 to transfer the components sent by the feeder 12 at the first feeding station to the board driving mechanism 20 for pasting, and after the first head executing component 312 feeds, the first driving component 11 can drive the feeder 12 to move to the second feeding station, at this time, the second head driving component 321 can drive the second head executing component 322 to transfer the components sent by the feeder 12 at the second feeding station to the board driving mechanism 20 for pasting. After the first head executing component 312 completes the pasting operation, the second head executing component 322 can quickly place the components on another board of the board driving mechanism 20 for pasting. The above steps are repeated alternately until all the pasting steps are completed. Therefore, the present application can ensure the production efficiency, reduce the number of feeders 12, and effectively reduce the manufacturing cost and the feeding time of the feeder.

[0043] In the above scheme, the patch machine 1000 further comprises a machine table, the top of the machine table is provided with a reference mounting surface, the feeding driving mechanism 10, the circuit board driving mechanism 20 and the double patch head carrying device 30 are all arranged on the reference mounting surface, so as to ensure the relative position relationship among the feeding driving mechanism 10, the circuit board driving mechanism 20 and the double patch head carrying device 30.

[0044] The first driving assembly 11 can be a linear module, a linear motion electric cylinder or other linear motion units, which are not limited herein.

[0045] In a specific embodiment, the first driving assembly 11 comprises a first motor 111, a first screw rod 112, a first guide rail 113 and a feeding carrier 114 provided with the feeder 12; the first screw rod 112 is provided with the first guide rail 113 parallel to the first screw rod 112 on opposite sides, the feeding carrier 114 is connected with the first screw rod 112 through a first nut and connected with the first guide rail 113 through a first sliding block, and the first screw rod 112 is arranged in extension in the first direction and connected with the first motor 111 at one end. In this way, the first motor 111 drives the first screw rod 112 to rotate, so that the first nut moves in the first direction and drives the feeder 12 to switch between the first feeding station and the second feeding station. The first guide rail 113 and the first sliding block can provide guidance for the nut seat and improve the stability of movement.

[0046] More specifically, the output end of the first motor 111 is connected with one end of the first screw rod 112 through a shaft coupling, so as to improve the stability of the connection between the two and ensure the reliability of the overall structure during movement.

[0047] In another specific embodiment, the first driving assembly 11 comprises a rotating disc and a rotating driving unit, the rotating disc is arranged rotatably on the machine table, the rotating axis of the rotating disc is perpendicular to the first direction, the feeder 12 is arranged at the rotating disc, and the rotating driving unit is connected with the rotating disc to drive the rotating disc to reciprocate in the first direction, that is, the rotating direction of the rotating disc, so as to drive the feeder 12 to move back and forth at a preset deflection angle, so as to achieve the switching of the feeder 12 between the first feeding station and the second feeding station. Specifically, the rotating driving unit can be a combination of a hollow rotating platform and a servo motor or a DD motor.

[0048] The feeder 12 can also have many forms of arrangement, for example, it can use a belt conveying type feeder 12 for feeding, or a vibrating type feeder 12 (such as a straight vibrating seat feeder) or other feeding devices, which are not limited herein. Exemplarily, in the present application, the feeder 12 is a flying dart, which can realize high-speed and accurate component conveying, so that the patch machine 1000 can quickly and accurately attach components to the PCB, thereby improving production efficiency.

[0049] It is worth mentioning that in the above scheme, the second direction is perpendicular to the first direction, so as to reduce the moving distance of the double-head carrier 30 to and from the feeding station and the placement position, save the moving stroke, shorten the moving time, and improve the production efficiency.

[0050] Referring to Figure 4 In an embodiment, the feeding platform 114 is provided with a plurality of mounting grooves 1141, which are arranged in the second direction at intervals, and each of the plurality of mounting grooves 1141 is used to mount a different type of feeder 12. When there are many types of components, the different types of feeders 12 can supply different types of materials to the double-head carrier 30, so that even if the production line is changed, the operator does not need to replace the feeder 12 of the placement machine 1000, reducing the downtime; and the plurality of mounting grooves 1141 arranged in the second direction at intervals can also shorten the movement stroke of the double-head carrier 30 when sucking different components, effectively improving the production efficiency.

[0051] Further, the feeding drive mechanism 10 further comprises a suction nozzle library (not shown in the figure), which is installed at the feeding platform 114 and is used to accommodate different types of suction nozzles, so as to facilitate the double-head carrier 30 to automatically replace the suction nozzles. In this way, the double-head carrier 30 can automatically replace the corresponding suction nozzles according to different components, replacing the manual replacement step, reducing downtime, and improving production efficiency.

[0052] Referring to Figure 1 In an embodiment, the double-head carrier 30 further comprises a gantry 33, which is installed on the machine table. The gantry 33 comprises a cross beam 331 and two upright columns 332. The feeding drive mechanism 10 and the circuit board drive mechanism 20 are located below the cross beam 331, and the feeding drive mechanism 10 and the circuit board drive mechanism 20 are located between the two upright columns 332. The cross beam 331 is connected to the machine table through the first upright column 332 and the second upright column 332. The cross beam 331 is provided with the first placement execution mechanism 31 and the second placement execution mechanism 32 on the two sides thereof, respectively, in the first direction.

[0053] The first placement drive assembly 311 is similar to the first drive assembly 11 in terms of arrangement. It can be a linear module, a linear motion electric cylinder, or other linear motion units, which are not limited here.

[0054] Referring to Figure 2In an embodiment, the first patch driving assembly 311 comprises a second motor 3111, a second screw rod 3112, a second guide rail 3113 and a first mounting plate 3114; the opposite sides of the second screw rod 3112 are provided with the second guide rail 3113 parallel to the second screw rod 3112, the first mounting plate 3114 is connected with the second screw rod 3112 through a second nut and connected with the second guide rail 3113 through a second sliding block, the second motor 3111 is connected to the second screw rod 3112, and the first patch executing assembly 312 is mounted on the first mounting plate 3114. In this way, the second motor 3111 drives the second screw rod 3112 to rotate, so that the second nut moves in the second direction and drives the first patch executing assembly 312 on the first mounting plate 3114 to run between the feeding driving mechanism 10 and the circuit board driving mechanism 20. The second guide rail 3113 and the second sliding block can provide guidance for the second nut and improve the stability of its movement.

[0055] In an embodiment, the first patch executing assembly 312 further comprises a first up-down movement driving assembly 3121, a first rotary movement driving assembly 3122 and a first suction nozzle assembly 3123, the first up-down movement driving assembly 3121 is mounted at the first mounting plate 3114 and connected with the first rotary movement driving assembly 3122 and the first suction nozzle assembly 3123, and the first suction nozzle assembly 3123 is used for picking and placing components. In this way, the first up-down movement driving assembly 3121 can adjust the height of the first patch executing assembly 312, so that the first patch executing assembly 312 can be lowered to the working height of the components fed out by the feeder 12 for picking; and the components can be placed at the working height of the circuit board driving mechanism 20 for component and circuit board mounting. Moreover, the first up-down movement driving assembly 3121 can also raise the first patch executing assembly 312 with picked components to a safe height during the movement of the first patch executing assembly 312 driven by the first patch driving assembly 311, so that the first patch executing assembly 312 can avoid the feeding driving mechanism 10 and the circuit board driving mechanism 20 when moving in the second direction, thereby ensuring the reliability and safety of the placement machine 1000 during operation. The first rotary driving assembly can adjust the angle of the components on the first patch executing assembly 312 with picked components, so that the components can be at a preset patch target angle and accurately mounted to the required position on the circuit board driving mechanism 20. The first up-down movement driving assembly 3121 cooperates with the first rotary movement driving assembly 3122 to effectively improve the accuracy of the placement machine 1000.

[0056] The first up-down movement driving assembly 3121 can be in many forms, such as a linear module, a linear motion electric cylinder or other linear motion units, which are not limited here.

[0057] Exemplarily, in the present application, the first up-down movement driving assembly 3121 comprises two first synchronous pulleys 3121a, a first synchronous belt 3121b, a ball spline shaft fixing seat 3121c, a ball spline shaft 3121d, and a third motor 3121e. The two first synchronous pulleys 3121a are arranged at intervals in the third direction (e.g. the Z direction in the figure) and are rotatably arranged on the first mounting plate 3114. The first synchronous belt 3121b is arranged at the two first synchronous pulleys 3121a. The ball spline shaft fixing seat 3121c is arranged on the first mounting plate 3114. The ball spline shaft 3121d is sleeved and drivingly connected to the ball spline shaft fixing seat 3121c. In the third direction, the leading end of the ball spline shaft 3121d is connected to the first synchronous belt 3121b through a connecting block, and the trailing end of the ball spline shaft 3121d is provided with a first suction nozzle assembly 3123. The third motor 3121e is connected to one of the first synchronous pulleys 3121a, for adjusting the height of the first suction nozzle assembly 3123. In this way, the third motor 3121e drives one of the first synchronous pulleys 3121a to rotate, which in turn drives the other first synchronous pulley 3121a to rotate through the first synchronous belt 3121b, so that the rotational movement of the first synchronous pulley 3121a is converted into the movement of the connecting block on the first synchronous belt 3121b, and finally the first suction nozzle assembly 3123 on the ball spline shaft 3121d is adjusted in height in the third direction. Figure 1

[0058] It can be understood that the first synchronous pulley 3121a can also be replaced by a chain wheel, and the first synchronous belt 3121b can be replaced by a chain, so as to realize height adjustment by chain transmission principle.

[0059] Similarly, the second patch execution mechanism 32 also comprises a second up-down movement driving assembly arranged on the side of the cross beam 331 opposite to the first up-down movement driving assembly 3121, which has the same working principle and arrangement as the second up-down movement driving assembly, and will not be repeated here.

[0060] In an embodiment, the first suction nozzle assembly 3123 comprises a first suction nozzle mounting seat 3123a and a first suction nozzle 3123b. The first suction nozzle mounting seat 3123a is provided with a passage, and the first suction nozzle 3123b is arranged on the first suction nozzle mounting seat 3123a and communicates with one end of the passage. The other end of the passage is used to communicate with a vacuum generating unit. In this way, the suction nozzle 3123b can suck elements.

[0061] The second suction nozzle assembly of the second up-down movement driving assembly is arranged in the same way as the first suction nozzle assembly 3123, and will not be repeated here.

[0062] ​The first rotary motion driving assembly 3122 can adjust the position of the component on the first suction nozzle assembly 3123 after the component is taken, so that the component can be at a preset target angle for patching, and the component can be accurately mounted to the required position on the circuit board driving mechanism 20.

[0063] In order to better understand the function of the first rotary motion driving assembly 3122, the working steps of the first rotary motion driving assembly 3122 in the actual production operation process of the patching machine 1000 are described below. After the first patching execution assembly 312 completes taking, the first rotary motion driving assembly 3122 drives the first patching execution assembly 312 to rotate to a preset target angle for patching, so that the patching step can be quickly completed after reaching the patching position.

[0064] In a specific embodiment, the first rotary motion driving assembly 3122 includes a ball spline nut 3122a, a second synchronous belt 3122c, a fourth motor 3122d, and two second synchronous pulleys 3122b. The ball spline nut 3122a is sleeved and drivingly connected to the ball spline shaft 3121d. The two second synchronous pulleys 3122b are arranged in a second direction and are spaced apart. One of the two second synchronous pulleys 3122b is rotatably arranged on the first mounting plate 3114, and the other second synchronous pulley 3122b is sleeved on the ball spline nut 3122a. The second synchronous belt 3122c is arranged on the two second synchronous pulleys 3122b. The fourth motor 3122d is arranged on the first mounting plate 3114 and connected to the second synchronous pulley 3122b arranged on the first mounting plate 3114, so as to adjust the angle of the first patching execution assembly 312. In this way, the ball spline shaft 3121d is adjusted in height under the action of the third motor 3121e, and after moving to the required position, the fourth motor 3122d can act on the second synchronous belt 3122c and the second synchronous pulley 3122b to make the ball spline nut 3122a rotate. The rotation of the ball spline nut 3122a can drive the ball spline shaft 3121d to rotate, and finally the first suction nozzle assembly 3123 fixed to the end of the ball spline shaft 3121d rotates. The whole operation process is smoother, and the patching assembly efficiency is improved. The linear and rotary motion of the first patching execution assembly 312 can be completed by only the ball spline component, the number of parts arranged is less, and the structure is simpler.

[0065] Similarly, the second patching execution mechanism 32 also includes a second rotary motion driving assembly connected to the second patching driving assembly 321. The working principle and arrangement of the second rotary motion driving assembly are the same as those of the first patching execution mechanism 31, which will not be repeated here.

[0066] Reference Figure 2In an embodiment, the patch machine 1000 further comprises a camera recognition assembly 40, the camera recognition assembly 40 comprises a first camera 41 and a second camera, the first camera 41 and the second camera are located between the feeding device and the circuit board driving mechanism 20, and the first camera 41 and the second camera are electrically connected to the double-patch head carrying device 30. When the first patch execution assembly 312 moves above the first camera 41, the first camera 41 can identify the component and drive the first patch execution mechanism 31, and when the second patch execution assembly 322 moves above the second camera, the second camera can identify the component and drive the second patch execution mechanism 32. The camera recognition assembly 40 can take a photo of the component on the first patch execution assembly 312 or the second patch execution assembly 322 when the double-patch head carrying device 30 moves above the camera recognition assembly 40, to confirm the position information of the current component, and compare the position information with the preset target patch position, to calculate the compensation value of the patch position and angle of the component. Since the first camera 41 and the second camera are electrically connected to the double-patch head carrying device 30, i.e. the first camera 41 and the second camera can convert the calculated compensation value of the patch position and angle of the component into an electrical signal and transmit it to the double-patch head carrying device 30, so that the first patch execution mechanism 31 and the second patch execution mechanism 32 can drive the corresponding first patch execution assembly 312 and second patch execution assembly 322 to move according to the received electrical signal, i.e. to compensate the position of the current first patch execution assembly 312 and second patch execution assembly 322, so as to conform to the preset target patch position. In this way, the accuracy of component mounting is improved, the production efficiency is effectively ensured, and the yield of finished products is improved.

[0067] Referring to Figure 2In an embodiment, the first patch executing assembly 312 is provided with a plurality of first patch executing assemblies 312 arranged in the second direction on the first mounting plate 3114; similarly, the second patch executing assembly 322 is provided with a plurality of second patch executing assemblies 322 arranged in the second direction on the second mounting plate. In this way, on the one hand, the number of the first patch executing assembly 312 and the second patch executing assembly 322 is increased, so that more components can be transferred each time, and the production efficiency is improved; on the other hand, the plurality of first patch executing assemblies 312 and the plurality of second patch executing assemblies 322 are arranged in the second direction respectively, and when each first patch executing assembly 312 or second patch executing assembly 322 moves above the camera recognition assembly 40, the camera recognition assembly 40 can sequentially take a photo of and recognize the components on each first patch executing assembly 312 or second patch executing assembly 322. Compared with the embodiment in which the patch executing assemblies are arranged in the movement direction of the circuit board carrier, while increasing the number of patch heads of the chip mounter, the number of cameras also needs to be increased, but in the present embodiment, only one first camera 41 and one second camera are arranged, and the plurality of first patch executing assemblies 312 and the plurality of second patch executing assemblies 322 that have taken components can be recognized by the first camera 41 and the second camera respectively, so that the production efficiency is ensured, the number of cameras is reduced, and the production cost is effectively reduced.

[0068] It is worth mentioning that through the implementation of the above-mentioned embodiments, in the process of linearly transferring the components to be mounted, the camera recognition assembly 40 can take a photo of and recognize a plurality of components, without the need to move to a special position for positioning, so that the unnecessary movement distance is reduced, the movement path is shorter, the component transfer and the photo recognition are completed at the same time, the entire production process is more coherent, the time consumption is less, and the efficiency is higher.

[0069] The number of the first patch executing assembly 31 and the second patch executing assembly 32 can be adjusted according to the needs, and is not limited herein. For example, in the present application, the first patch executing assembly 31 and the second patch executing assembly 32 are each provided with three.

[0070] Reference Figure 1In an embodiment, the circuit board driving mechanism 20 comprises a fifth motor 21, a third screw rod 22, a third guide rail 23 and a circuit board platform 24. The third guide rail 23 is arranged on the opposite sides of the third screw rod 22 in parallel with the third screw rod 22. The circuit board platform 24 is connected with the third screw rod 22 through a third nut and connected with the third guide rail 23 through a third sliding block. The fifth motor 21 is connected with the third screw rod 22. In this way, the fifth motor 21 drives the third screw rod 22 to rotate, so that the third nut moves in the first direction and drives the circuit board platform 24 to move horizontally relative to the double chip head handling device 30, so that the first chip executing assembly 312 or the second chip executing assembly 322 can correspond to different positions of the circuit board platform 24, thereby ensuring the coverage rate when the circuit board is pasted on the circuit board platform 24. The third guide rail 23 and the third sliding block can guide the third nut to move stably.

[0071] In an embodiment, the first camera 41 and the second camera are electrically connected with the double chip head handling device 30 and the circuit board driving mechanism 20, so that when the first chip executing assembly 312 or the second chip executing assembly 322 that has taken the components reaches above the circuit board platform, the components are aligned with the preset target pasting position, thereby realizing more accurate and rapid pasting operation.

[0072] In an embodiment, the chip mounter 1000 further comprises a first mark recognition assembly 3124. The mark recognition assembly 3124 comprises a third camera 3124a. The third camera 3124a is arranged beside the first chip executing assembly 312. The third camera 3124a is used to recognize the mark of the circuit board. The third camera 3124a is electrically connected with the circuit board driving mechanism 20 to drive the circuit board platform 24 to move. In this way, the mark recognition assembly 3124 can recognize the position of the circuit board to control the alignment between the circuit board at different positions on the circuit board platform 24 and the first chip executing assembly 312 or the second chip executing assembly 322.

[0073] Specifically, the mark of the circuit board is a MARK point. The first mark recognition assembly 3124 can recognize the position of the MARK point and compare it with the preset pasting position to calculate the compensation value of the pasting position of the components. Then, the compensation value of the pasting position of the components is converted into an electrical signal and transmitted to the circuit board driving mechanism 20. The circuit board driving mechanism 20 can drive the circuit board platform 24 to move according to the received electrical signal, so that it conforms to the preset target pasting position.

[0074] In order to better understand the working principle of the present application, the working process of the chip mounter 1000 in actual production is described below.

[0075] (A) Initial state, the double patch head carrying device 30 is located above the feeding driving mechanism 10, and the first patch executing assembly 312 and the second patch executing assembly 322 are respectively located at the first feeding position and the second feeding position;

[0076] (B) The feeder 12 on the feeding driving mechanism 10 sends out a group of components, and the feeder 12 is located at the first feeding position at this time; the first up-down movement driving assembly 3121 drives the first patch executing assembly 312 to descend to the first feeding position to take the components, and drives the first patch executing assembly 312 to ascend to a safe height again after the taking is completed; the feeder 12 sends out another group of components, and the first driving assembly 11 drives the feeder 12 to move to the second feeding position; the second up-down movement driving assembly repeats the action of the first up-down movement driving assembly 3121 until the first patch executing assembly 312 and the second patch executing assembly 322 both complete the taking;

[0077] (C) The second horizontal assembly and the third horizontal assembly respectively drive the first patch executing assembly 312 and the second patch executing assembly 322 to move to the circuit board driving mechanism 20, and during the movement, the first rotating driving assembly and the second rotating driving assembly respectively drive the first patch executing assembly 312 and the second patch executing assembly 322 to rotate, so that all the components are rotated to approximately conform to the target angle position of the patch, and when moving above the camera recognition assembly 40, the camera recognition assembly 40 is triggered to take a photo of all the components to position, and after the photo is taken, an image processing thread is started to calculate the compensation value of the position and the angle of each component;

[0078] (D) The first patch executing assembly 312 reaches the corresponding position to be pasted of the circuit board driving mechanism 20, the first mark recognition assembly 3124 recognizes the MARK point of the circuit board and calculates the compensation value of the position of the component; the first patch executing assembly 312 cooperates with the circuit board driving mechanism 20 to compensate the position, and then the first up-down movement driving assembly 3121 descends to place the component on the circuit board and ascends to a safe height again (if there are multiple first patch executing assemblies 31, the above-mentioned action is repeated until the multiple first patch executing assemblies 31 complete the pasting);

[0079] (E) The second patch executing assembly 322 reaches the corresponding position to be pasted of the circuit board driving mechanism 20, and repeats the action of the first patch executing assembly 31 until the pasting step of all the second patch executing assemblies 32 is completed.

[0080] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them, and for those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced equivalently; and all these modifications and replacements should belong to the protection scope of the claims of the present application.

Claims

1. A pick-and-place machine, characterized in that, It has a first loading station and a second loading station, including: A feeding drive mechanism includes a first drive component and a feeder. The feeder is connected to the first drive component. The first drive component is used to drive the feeder to move in a first direction so that the feeder alternately switches between a first feeding station and a second feeding station. A circuit board driving mechanism is located on one side of the feeding driving mechanism in a second direction, which is perpendicular to the first direction. The circuit board driving mechanism is used to place circuit boards. A dual-placement head conveying device is mounted above a loading drive mechanism and a circuit board drive mechanism. The dual-placement head conveying device includes a first placement execution mechanism and a second placement execution mechanism spaced apart in a first direction. The first placement execution mechanism includes a first placement drive assembly and a first placement execution assembly, which are connected to each other. The first placement drive assembly is used to drive the first placement execution assembly to move in a second direction to transfer components at the first loading station to the circuit board within the circuit board drive mechanism. The second placement execution mechanism includes a second placement drive assembly and a second placement execution assembly, which are connected to each other. The second placement drive assembly is used to drive the second placement execution assembly to move in a second direction to transfer components at the second loading station to another circuit board within the circuit board drive mechanism.

2. The placement machine according to claim 1, characterized in that, The first drive assembly includes a first motor, a first lead screw, a first guide rail, and a loading platform; the first guide rail is provided on opposite sides of the first lead screw and is parallel to the first lead screw; the loading platform is connected to the first lead screw through a first nut and to the first guide rail through a first slider; and the first motor is connected to the first lead screw.

3. The placement machine according to claim 2, characterized in that, The feeding platform is provided with multiple mounting grooves, which are arranged at intervals in the second direction. The multiple mounting grooves are used to install different types of feeders. The feeding drive mechanism also includes a suction nozzle magazine, which is installed at the feeding platform and is used to accommodate different types of suction nozzles.

4. The placement machine according to claim 1, characterized in that, The dual-patch head transport device further includes a gantry frame. The first patch drive assembly and the second patch drive assembly are mounted on both sides of the gantry frame in the first direction. The first patch drive assembly includes a second motor, a second lead screw, a second guide rail, and a first mounting plate. The second lead screw has second guide rails parallel to it on its opposite sides. The first mounting plate is connected to the second lead screw via a second nut and to the second guide rail via a second slider. The second motor is connected to the second lead screw. The first patch execution assembly is mounted on the first mounting plate.

5. The placement machine according to claim 4, characterized in that, The first patching execution component further includes a first up-and-down motion drive component, a first rotational motion drive component, and a first suction nozzle component. The first up-and-down motion drive component is mounted on the first mounting plate and connected to the first rotational motion drive component and the first suction nozzle component. The first suction nozzle component is used to pick up and place components. The first up-and-down motion drive component cooperates with the first rotational motion drive component to adjust the patching position of the components on the first suction nozzle component.

6. The placement machine according to claim 5, characterized in that, The first up-and-down motion drive component includes: Two first synchronous pulleys are spaced apart in a third direction and rotatably mounted on the first mounting plate; The first synchronous belt is installed at the two first synchronous pulleys; A ball spline shaft retainer is mounted on the first mounting plate; A ball spline shaft is sleeved and drivenly connected to the ball spline shaft fixing seat. In the third direction, the first end of the ball spline shaft is connected to the first synchronous belt through a connecting block, and the first suction nozzle assembly is provided at the end of the ball spline shaft. A third motor is connected to one of the first synchronous pulleys for adjusting the height of the first suction nozzle assembly.

7. The placement machine according to claim 6, characterized in that, The first rotational motion drive component includes: A ball spline nut, which is fitted and drivenly connected to the ball spline shaft; Two second timing pulleys are spaced apart in the second direction, one of which is rotatably mounted on the first mounting plate, and the other is fitted onto the ball spline nut. The second synchronous belt is installed at the two second synchronous belt pulleys; A fourth motor is mounted on the first mounting plate and connected to the second synchronous pulley on the first mounting plate for adjusting the angle of the first patch execution assembly.

8. The placement machine according to any one of claims 4-6, characterized in that, It also includes a camera recognition component, which includes a first camera and a second camera. The first camera and the second camera are located between the loading drive mechanism and the circuit board drive mechanism. The first camera and the second camera are both electrically connected to the dual placement head conveying device. When the first placement execution component moves above the first camera, the first camera can recognize the component, and when the second placement execution component moves above the second camera, the second camera can recognize the component.

9. The placement machine according to claim 8, characterized in that, The first patch execution component is provided in multiple ways, and the multiple first patch execution components are arranged in the second direction at the first mounting plate.

10. The placement machine according to claim 9, characterized in that, The circuit board drive mechanism includes a fifth motor, a third lead screw, a third guide rail, and a circuit board platform; the third lead screw is provided with third guide rails parallel to the third lead screw on opposite sides; the circuit board platform is connected to the third lead screw through a third nut and to the third guide rail through a third slider; the fifth motor is connected to the third lead screw.

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