A double-head high-efficiency automatic chip mounter

Abstract

The present invention discloses a double-head high-efficiency automatic chip mounter, which includes a supporting and conveying base for support, a board feeding device for conveying a lamp board, a feeding feeder for feeding, a mounting head for mounting, and a linear drive crossbeam for supporting the mounting head. There are two mounting heads, and the two cross-type mounting heads move in opposite directions on the supporting crossbeam respectively. There are two groups of feeding feeders, and the two groups of feeding feeders are respectively arranged corresponding to the mounting heads. The linear motors arranged on the supporting crossbeam are used to drive the two mounting heads simultaneously. The driving process is stable and efficient. The driving slider and the slide rail are magnetically levitated and do not come into contact, avoiding the mounting deviation caused by the wear of the slideway. At the same time, a high-efficiency cross-type mounting head is disclosed. The cross-type arrangement of the mounting heads reduces the distance between the suction nozzles, greatly improving the mounting density in the same space. At the same time, the mounting efficiency is improved, the production cost is saved, and the productivity of the product is increased.

Description

Technical Field

[0001] The present invention relates to an LED mounter, and in particular to a double-head high-efficiency automatic mounter. Background Art

[0002] A fully automatic mounter is a device used to achieve high-speed and high-precision fully automatic placement of components, and is the most critical and complex device in the entire SMT production. The mounter for LED chip mounting uses a mounting head to mount LED chips on an integrated LED lamp board. Existing LED mounters generally use a single mounting head for mounting, and the efficiency during mounting is not high. Therefore, there are mounters with two mounting heads for simultaneous alternating mounting. However, due to the widespread application of LED lights in society, the demand for LED integrated chip mounting is increasing, and ordinary mounting heads can no longer meet the production requirements. Moreover, when the mounting head performs fast and efficient mounting, it requires the mobile device to operate efficiently, and the efficiently operating mobile device is prone to problems such as wear and poor accuracy. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a double-head high-efficiency automatic mounter that uses a stable linear motor to drive two high-efficiency mounting heads.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a double-head high-efficiency automatic mounter, including a support conveyor seat for support, a board feeding device for feeding the lamp board, a feeder for feeding materials, a mounting head for mounting, and a linear drive crossbeam for supporting the mounting head;

[0005] The board feeding device is fixedly installed in the middle of the support conveyor seat in the X-axis direction. The linear drive crossbeam is horizontally arranged across the board feeding device in the middle of the support conveyor seat in the Y-axis direction and is slidably arranged in the Y-axis direction of the support conveyor seat. There are two mounting heads, and the two mounting heads move in opposite directions on the support crossbeam. There are two groups of feeders, and the two groups of feeders are respectively located below the initial positions of the two mounting heads and are arranged corresponding to the mounting heads.

[0006] As an improvement of the above technical solution, a support platform is provided on the support conveyor seat, and the linear drive crossbeam is slidably connected to the support platform through a Y-axis slide rail provided on the support platform. The Y-axis slide rail includes a central slide rail and a side slide rail.

[0007] As a further improvement of the above technical solution, the linear drive crossbeam includes a support crossbeam and a linear motor located on the support crossbeam. The support crossbeam is installed on the support conveyor seat, and the mounting head is fixed on the slider of the linear motor, and the movement in the X-axis direction is realized through the linear motor.

[0008] As a further improvement of the above technical solution, the mounting head includes a driving device, a Z-axis part above the machine head and a Z-axis part below the machine head. There are two driving devices, which are respectively used to drive the Z-axis part above the machine head and the Z-axis part below the machine head.

[0009] As a further improvement of the above technical solution, the driving device includes a horizontal driving part and a vertical driving part. The horizontal driving part and the vertical driving part are used to drive the Z-axis part above the machine head and the Z-axis part below the machine head to move in the Z-axis direction and rotate in the X-axis direction. The vertical driving part first drives the Z-axis part below the machine head to move in the Z-axis direction, and then drives the Z-axis part above the machine head to move in the Z-axis direction.

[0010] As a further improvement of the above technical solution, the Z-axis part above the machine head and the Z-axis part below the machine head have the same structure, and both are provided with a plurality of nozzle groups. The nozzle groups of the Z-axis part above the machine head and the Z-axis part below the machine head are arranged at equal intervals. The connecting block of the Z-axis part above the machine head is located above the suction rod, and the connecting block of the Z-axis part below the machine head is located below the suction rod. The nozzle groups of the Z-axis part above the machine head and the Z-axis part below the machine head are arranged in a cross pattern on the same horizontal line.

[0011] As a further improvement of the above technical solution, the board feeding device includes a support tabletop, a conveyor belt and a driving device for driving the conveyor belt. The support tabletop is located on the support platform. The driving device includes a driving motor and a lead screw that converts the linear motion of the driving motor into the linear motion of the conveyor belt.

[0012] As a further improvement of the above technical solution, the board feeding device is also provided with a board feeding length detection device. The board feeding length detection device includes an encoder, a roller and a mounting bracket. The roller is rotatably connected to the mounting bracket through a rotating shaft.

[0013] As a further improvement of the above technical solution, the feeder includes a feeder body, a support mounting seat and a feeder mounting block. The feeder body and the feeder mounting block are symmetrically provided with two groups on both sides of the support mounting seat. There are a plurality of feeder bodies, and a feeder mounting block is provided at the connection of each feeder body and the support mounting seat. The feeder body is fixed on the support mounting seat through the feeder mounting block.

[0014] As a further improvement of the above technical solution, an auxiliary feeding rod is also provided on the side of the support mounting seat. The auxiliary feeding rod includes an extension part and a sliding part. The extension part is fixed on the side of the support mounting seat and extends from the middle of the support mounting seat to the edge. The end of the sliding part is vertically fixed to the end of the extension part to form a support outside the feeder body.

[0015] The beneficial effects of the present invention are as follows: The mounter of the present invention uses a linear motor provided on the support cross beam to drive two mounting heads simultaneously, and the driving process is stable and efficient. The driving slider and the slide rail are magnetically levitated and do not come into contact, avoiding mounting deviation caused by wear of the slideway. At the same time, an efficient cross-type mounting head is disclosed. The cross-setting mounting heads reduce the distance between the suction nozzles, greatly improving the mounting density in the same space. At the same time, the mounting efficiency is improved, the production cost is saved, and the productivity of the product is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the drawings and embodiments.

[0017] Figure 1 is the front axonometric schematic diagram of the assembly structure of the present invention;

[0018] Figure 2 is the back axonometric schematic diagram of the assembly structure of the present invention;

[0019] Figure 3 is the schematic diagram of the dual-head assembly structure of the present invention;

[0020] Figure 4 is the schematic diagram of the cross-type head assembly of the present invention;

[0021] Figure 5 is the schematic diagram of the back structure of the linear drive cross beam of the present invention;

[0022] Figure 6 is the schematic diagram of the structure of the feeding part of the present invention;

[0023] Figure 7 is the schematic diagram of the drive part of the board feeding mechanism of the present invention;

[0024] Figure 8 is the schematic diagram of the conveyor belt structure of the board feeding mechanism of the present invention;

[0025] Figure 9 is the schematic diagram of the structure of the board feeding length detection device of the present invention.

[0026] 1. Support conveying seat; 11. Support table; 12. Central slide rail; 13. Side slide rail;

[0027] 2. Board feeding device; 21. Support table surface; 22. Conveyor belt; 23. Lead screw;

[0028] 3. Board feeding length detection device; 31. Encoder; 32. Roller; 33. Mounting bracket;

[0029] 4. Mounting head; 41. Transverse drive part; 42. Vertical drive part; 43. Z-axis part on the head; 44. Z-axis part under the head;

[0030] 5. Linear drive crossbeam; 51. Support crossbeam; 52. Linear motor;

[0031] 6. Feeding feeder; 61. Feeder body; 62. Support mounting seat; 63. Feeder mounting block; 64. Auxiliary feeding rod. Detailed implementation manners

[0032] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present invention can be interactively combined without conflicting with each other.

[0033] Refer to Figure 1 、 Figure 2 , a double-head high-efficiency automatic chip mounter, including a support conveyor seat 1 for support, a board feeding device 2 for feeding the lamp board, a feeding feeder 6 for feeding, a mounting head 4 for mounting, and a linear drive crossbeam 5 for supporting the mounting head 4;

[0034] The board feeding device 2 is fixedly installed in the middle of the support conveyor seat 1 in the Y-axis direction. The linear drive crossbeam 5 is horizontally arranged across the board feeding device 2 in the middle of the support conveyor seat 1 in the X-axis direction and is slidably arranged in the Y-axis direction of the support conveyor seat 1. The linear drive crossbeam 5 and the board feeding device 2 are arranged in a cross perpendicular manner in the middle of the support conveyor seat 1. There are two mounting heads 4, and the two mounting heads 4 move in opposite directions on the support crossbeam 51. There are two groups of feeding feeders 6, and the two groups of feeding feeders 6 are respectively located below the initial positions of the two mounting heads 4 and are arranged corresponding to the mounting heads 4.

[0035] During operation, the LED tape is placed into the feeding feeder 6. The feeding feeder 6 feeds the tape under the placement head 4. The placement head 4 located on one side of the linear drive crossbeam 5 picks up the lamp beads on the tape. After the picking-up is completed, the linear drive crossbeam 5 drives the placement head 4 to move towards the middle of the crossbeam in the X-axis direction of the support conveyor base 1. At the same time, the board feeding device 2 located in the middle of the linear drive crossbeam 5 drives the LED lamp board for placement to move in the Y-axis direction of the support conveyor base 1. When the placement head 4 moves above the board feeding device 2, the placement of the lamp board starts. During the placement process, the placement head 4 on the other side of the linear drive crossbeam 5 starts to pick up the patches. After the picking-up is completed, the linear drive crossbeam 5 drives the placement head 4 on this side to move towards the middle of the crossbeam in the X-axis direction of the support conveyor base 1. At the same time, the placement head 4 that has completed the placement returns to the position of feeding from the feeder. The board feeding device 2 drives the LED lamp board for placement to move in the Y-axis direction of the support conveyor base 1. When the placement head 4 on this side moves to the position corresponding to the board feeding device 2, the placement is carried out again. The two placement heads 4 alternately carry out the placement in sequence, greatly saving the placement time and improving the placement efficiency.

[0036] Refer to Figure 3 、 Figure 4 As shown in FIGS.

[0037] The vertical driving part 42 drives the Z-axis part 44 under the machine head to move in the Z-axis direction. When the Z-axis part 44 under the machine head moves to the chip feeding position, it stops moving. The suction nozzle starts to suck the chip, and then the vertical driving part 42 drives the Z-axis part 44 under the machine head to move upward in the Z-axis direction to return to its position. After the return is completed, the vertical driving part 42 drives the Z-axis part 43 on the machine head to move in the Z-axis direction. After the Z-axis part 43 on the machine head sucks the chip, it returns to its position and is arranged side by side with the Z-axis part 44 under the machine head in a crossed manner. The Z-axis part 43 on the machine head and the Z-axis part 44 under the machine head that respectively perform the chip sucking process can achieve non-interference and non-influence on each other during the movement process while reducing the nozzle pitch, and stably improve the mounting efficiency of the mounting head 4. The two horizontal driving parts 41 are respectively arranged corresponding to the two machine head cross beams, and the two horizontal driving parts 41 respectively drive the overall rotation of the Z-axis part 43 on the machine head and the Z-axis part 44 under the machine head.

[0038] Refer to Figure 5 、 Figure 6 , a support table 11 is provided on the support conveying seat 1. The linear driving cross beam 5 is slidably connected to the support table 11 through a Y-axis slide rail provided on the support table 11. The Y-axis slide rail includes a central slide rail 12 and a side slide rail 13. The two slide rails slidably support the support cross beam 51 at different positions corresponding to the positions when the mounting head 4 sucks the chip and performs mounting, so that the support cross beam 51 can still maintain balance and stability when the force is uneven, improving the support effect and ensuring the mounting accuracy. The linear driving cross beam 5 includes a support cross beam 51 and a linear motor 52 located on the support cross beam 51. The support cross beam 51 is installed on the support conveying seat 1. The mounting head 4 is fixed on the slider of the linear motor 52, and the movement in the X-axis direction is realized through the linear motor 52. Driving the mounting head 4 by using the linear motor 52 simplifies the driving structure, saves production costs, and avoids the wear caused by the contact between the linear slide rail and the slider, increasing the movement accuracy and mounting speed of the mounting head 4 during mounting. The two mounting heads 4 move on one linear motor 52 at the same time, greatly improving the mounting efficiency and mounting accuracy of the mounter while ensuring the simplicity of the mounter structure.

[0039] Refer to Figure 1 、 Figure 6The feed flyer 6 includes a flyer body 61, a support mounting seat 62 and a flyer mounting block 63. The flyer body 61 and the flyer mounting block 63 are symmetrically provided with two groups on both sides of the support mounting seat 62. The support mounting seat 62 supports the two groups of flyers as a whole. The structure is simple, the installation is simple and convenient, and the production efficiency is high. There are multiple flyer bodies 61. Each flyer body 61 is provided with a flyer mounting block 63 at the connection between the flyer body 61 and the support mounting seat 62. The flyer body 61 is fixed on the support mounting seat 62 through the flyer mounting block 63. The flyer mounting block 63 assists in the installation of each flyer body 61 separately, so as to realize the flexible adjustment of each flyer body 61 on the support mounting seat 62. The separate installation not only ensures the adjustment flexibility of the flyer body 61, but also realizes the stability of the flyer body 61 after being fixed. The separate adjustment of each flyer body 61 will not affect the stability of other flyer bodies 61, so as to ensure the mounting accuracy of the placement machine.

[0040] The side of the support mounting seat 62 is also provided with an auxiliary feeding rod 64, which includes an extension portion and a sliding portion, extending from the middle of the support seat to the edge, and the fixed portion extending from the side is staggered from the installation position of the flyer, which will not affect the working process of the flyer body 61. The extension portion is fixed to the side of the support mounting seat 62, extending from the middle of the support mounting seat 62 to the edge, and the end of the sliding portion is vertically fixed to the end of the extension portion to form a support on the outside of the flyer body 61. When the flyer body 61 is working, the strip of material hangs down from the feed port of the flyer. The material strip that hangs down directly is easy to break, causing the flyer body 61 to get stuck during feeding. Therefore, an auxiliary feeding rod 64 is arranged behind the feed port of the flyer to provide sliding support for the material strip during feeding. This does not affect the feeding of the flyer body 61 and can support the material strip so that the material strip will not break, thereby ensuring the stability and smoothness of the feeding of the flyer body 61 and thereby increasing the mounting accuracy of the placement machine.

[0041] Reference Figure 7 , Figure 8 The plate feeding device 2 includes a support table 21, a conveyor belt 22 and a driving device for driving the conveyor belt 22. The support table 21 is located on the support table 11. The driving device includes a driving motor and a lead screw 23 for converting the linear motion of the driving motor into the linear motion of the conveyor belt 22. The conventional conveyor belt 22 generally uses a motor to drive a rotating wheel to directly drive the conveyor belt 22. The conveyor belt 22 is directly fixed on a linear slider that cooperates with the lead screw 23. The lead screw 23 is used to convert the rotation of the motor into linear motion to drive the conveyor belt 22, so that the linear motion of the conveyor belt 22 is more balanced and stable.

[0042] Reference Figure 9, a feed plate device 2 is further provided with a feed plate length detection device 3. The feed plate length detection device 3 includes an encoder 31, a roller 32 and a mounting bracket 33. The encoder 31 has the advantages of small volume, high precision, long service life, non-contact and non-wear, and arbitrary installation. The resolution of the encoder 31 itself can be very high. With the assistance of the roller 32, the encoder 31 can accurately detect the linear distance of the plate fed by the plate feeding mechanism. The roller 32 is rotatably connected to the mounting bracket 33 through a rotating shaft. The feed plate length detection component is arranged at the head end of the plate feeding mechanism. When the lamp board passes through the feed plate length detection component and enters the plate feeding mechanism, with the movement of the plate feeding mechanism, the lamp board is driven to move forward. The movement of the lamp board drives the roller 32 located at the bottom of the lamp board to rotate. The encoder 31 is fixedly connected to the roller 32. When the roller 32 rotates, it drives the encoder 31 to rotate at the same time, generating a feedback signal in the encoder 31, thereby monitoring the length of the lamp board advancing. This makes the transportation process of the lamp board more accurate and improves the mounting accuracy of the mounter.

[0043] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A double-headed high-efficiency automatic chip mounter, characterized in that: it includes a support conveyor base for support, a board feeding device for feeding lamp boards, a feeder for feeding materials, a mounting head for mounting, and a linear drive cross beam for supporting the mounting head; the board feeding device is fixedly installed in the middle of the support conveyor base in the X-axis direction, the linear drive cross beam is horizontally arranged across the board feeding device in the middle of the support conveyor base in the Y-axis direction, and is slidably arranged in the Y-axis direction of the support conveyor base. There are two mounting heads, and the two mounting heads move in opposite directions on the support cross beam. There are two groups of feeders, and the two groups of feeders are respectively located below the initial positions of the two mounting heads and are arranged corresponding to the mounting heads; a support table is provided on the support conveyor base, and the linear drive cross beam is slidably connected to the support table through a Y-axis slide rail provided on the support table. The Y-axis slide rail includes a central slide rail and a side slide rail; the mounting head includes a drive device, a Z-axis part above the machine head and a Z-axis part below the machine head. There are two drive devices, which are respectively used to drive the Z-axis part above the machine head and the Z-axis part below the machine head; the drive device includes a horizontal drive part and a vertical drive part. The vertical drive part is used to drive the Z-axis part above the machine head and the Z-axis part below the machine head to move in the Z-axis direction. The horizontal drive part is used to drive the Z-axis part above the machine head and the Z-axis part below the machine head to rotate in the X-axis direction. The vertical drive part first drives the Z-axis part below the machine head to move in the Z-axis direction, and then drives the Z-axis part above the machine head to move in the Z-axis direction; the Z-axis part above the machine head and the Z-axis part below the machine head have the same structure, and both are provided with a plurality of nozzle groups. The nozzle groups of the Z-axis part above the machine head and the Z-axis part below the machine head are arranged at equal intervals. The connecting block of the Z-axis part above the machine head is located above the suction rod, and the connecting block of the Z-axis part below the machine head is located below the suction rod. The nozzle groups of the Z-axis part above the machine head and the Z-axis part below the machine head are arranged in a cross pattern on the same horizontal line.

2. The double-headed high-efficiency automatic chip mounter according to claim 1, characterized in that: the linear drive cross beam includes a support cross beam and a linear motor located on the support cross beam. The support cross beam is installed on the support conveyor base, and the mounting head is fixed on the slider of the linear motor to realize the movement in the X-axis direction through the linear motor.

3. The double-headed high-efficiency automatic chip mounter according to claim 1, characterized in that: the board feeding device includes a support table surface, a conveyor belt, and a drive device for driving the conveyor belt. The support table surface is located on the support table. The drive device includes a drive motor and a lead screw that converts the linear motion of the drive motor into the linear motion of the conveyor belt.

4. The double-headed high-efficiency automatic chip mounter according to claim 3, characterized in that: a board feeding length detection device is further provided on the board feeding device. The board feeding length detection device includes an encoder, a roller, and a mounting bracket. The roller is rotatably connected to the mounting bracket through a rotating shaft.

5. The double-headed high-efficiency automatic chip mounter according to claim 1, characterized in that: The feeding feeder includes a feeder body, a support mounting seat, and a feeder mounting block. Two groups of the feeder body and the feeder mounting block are symmetrically arranged on both sides of the support mounting seat. There are multiple feeder bodies, and a feeder mounting block is provided at the connection of each feeder body and the support mounting seat. The feeder body is fixed on the support mounting seat through the feeder mounting block.

6. The dual-head high-efficiency automatic chip mounter according to claim 5, characterized in that: An auxiliary feeding rod is further provided on the side of the support mounting seat. The auxiliary feeding rod includes an extension part and a sliding part. The extension part is fixed on the side of the support mounting seat and extends from the middle of the support mounting seat to the edge. The end of the sliding part is vertically fixed to the end of the extension part to form a support outside the feeder body.

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