High-precision chip mounter head mechanism

Abstract

The utility model relates to a high-precision chip mounter head mechanism, which comprises an equipment plate, a mounting seat arranged at the center of the rear end of the equipment plate, an equipment shell arranged at the front end of the equipment plate, an identification camera arranged at the center of the rear side of the equipment shell, a light supplementing block arranged at the lower end of the identification camera, and a photographing channel arranged at the center in the light supplementing block. A light supplementing mirror surface is arranged on the lower side of the light supplementing block, a swing arm unit is arranged at the upper end of the front side of the equipment plate, guide rails are arranged at the left end and the right end of the front side of the equipment plate, and a mounting head assembly is slidably connected to the front sides of the guide rails. And meanwhile, the surface mounting head can be lubricated in real time when the electronic component is sucked, so that the surface mounting head cannot be stuck and is smoother, and the surface mounting quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of chip mounter technology, and in particular to a high-precision chip mounter head mechanism. Background Technology

[0002] Pick and place machine (POP): Also known as a surface mount system (SMT), it is a device installed after the dispensing machine or screen printer in the production line. It accurately places surface mount components onto the PCB pads by moving the placement head. There are manual and fully automatic types. Fully automatic POP machines are used to achieve high-speed, high-precision, fully automated component placement and are the most critical and complex equipment in the entire SMT production process. POP machines are the main equipment in the SMT production line. They have evolved from early low-speed mechanical POP machines to high-speed optical alignment POP machines and are developing towards multi-functionality, flexible connection, and modularity.

[0003] Patent application number CN202323488193.3 is a Chinese utility model patent, which discloses a silicon carbide chip mounting head, including: a housing and a linear guide rail, the linear guide rail is provided with an adsorption element, the adsorption element is connected to a heat-conducting element, the heat-conducting element is used to heat the silicon carbide chip adsorbed by the adsorption element; the housing is connected to an adjustment device, the adjustment device is connected to the linear guide rail, the adjustment device is used to adjust the mounting angle of the silicon carbide chip adsorbed by the adsorption element; the housing is connected to a pressure device, the pressure device adjusts the contact pressure when mounting the silicon carbide chip by driving the linear guide rail to rise and fall; the silicon carbide chip is bonded to the backing plate under the combined action of the heat-conducting element and the pressure device. The silicon carbide chip placement head uses heating and closed-loop control. The closed-loop control adjusts the heating temperature of the silicon carbide chip based on the real-time temperature feedback signal from the temperature sensor, thus keeping the temperature within the design requirements during the placement process. This helps avoid soldering quality problems caused by excessively high or low temperatures. However, this equipment has the following problems: First, it cannot provide supplemental lighting when the camera is capturing chip images, which can easily cause blurry images and affect the placement effect. Second, the placement head cannot perform real-time self-lubrication. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by setting up a supplementary light block at the bottom of the recognition camera to solve the technical problem that the device cannot provide supplementary light when the camera is capturing chip images and collecting information, which easily causes the image to be blurry and affects the mounting effect. The invention also solves the technical problem that the mounting head of the device cannot perform real-time self-lubrication by setting up a lubrication tube on the mounting head.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-precision placement head mechanism includes a device board, a mounting base at the rear center of the device board, a device housing at the front end of the device board, a recognition camera at the rear center of the device housing, a supplementary light block at the lower end of the recognition camera, an image capture channel at the center inside the supplementary light block, a supplementary light mirror at the lower side of the supplementary light block, a swing arm unit at the upper front end of the device board, and guide rails at both the left and right front ends of the device board, with a placement head assembly slidably connected to the front of the guide rails.

[0007] As a preferred embodiment, the swing arm unit is provided with a swing arm motor at its rear end, and a drive shaft is provided at the center of the front end of the swing arm motor. The front end of the drive shaft is fixedly connected to the swing arm, and the swing arm motor is located on the rear side of the equipment plate.

[0008] As a preferred embodiment, the mounting head assembly has a device plate at its rear end, a device block at the upper front end of the device plate, a mounting head at the center of the front side of the device block, an air duct connecting tube at the uppermost end of the mounting head, a hollow motor at the center of the lower end of the mounting head, a hollow shaft at the center of the hollow motor, the hollow shaft passing through the hollow motor vertically, and a connector at the outer side of the lower end of the hollow shaft, the connector being movably connected to the mounting nozzle.

[0009] As a preferred embodiment, the upper end of the mounting nozzle is provided with a quick connector, the center of the quick connector is provided with an air passage, the lower end of the quick connector is provided with a sealing tube, and the lower end of the sealing tube is provided with a lubrication tube.

[0010] As a preferred embodiment, the upper right end of the lubrication pipe is provided with an oil injection port, the lower center of the lubrication pipe is provided with a sealing ring, the inner side of the sealing ring is movably connected to a sliding column, the sliding column is provided with a vacuum pipe, and the upper end of the vacuum pipe extends into the interior of the sealing pipe.

[0011] As another preferred embodiment, the lower end of the sliding column is fixedly connected to an anti-overflow fixing ring, the upper end of the anti-overflow fixing ring is provided with an inner groove, and the outer side of the sliding column is provided with a spring ring.

[0012] The beneficial effects of this utility model are:

[0013] (1) In this utility model, by setting a supplementary light block at the bottom of the recognition camera, a supplementary light operation is performed when the recognition camera captures chip image information. When the recognition camera takes a picture, the supplementary light mirror at the bottom of the supplementary light block will use the reflection principle to enhance the light of the chip at the bottom and perform precise position supplementary light so that the recognition camera will not affect the image when taking pictures, and ensure the accurate chip mounting effect.

[0014] (2) In this utility model, by setting a lubrication tube to lubricate the sliding column in real time, the jamming when the nozzle picks up electronic components is reduced. The mounting head assembly will move down the guide rail in sequence on the left and right sides of the swing arm unit. After the mounting nozzle is pressed onto the worktable, the sliding column will rise due to resistance and slide into the lubrication tube. The sliding column will be lubricated in real time by the lubricating oil in the lubrication tube, so that it will not jam when frequently rising and falling to pick up electronic components, making it smoother. Then the mounting nozzle picks up electronic components through the vacuum channel. The spring ring plays a buffer role to avoid the pressure from damaging the electronic components. When the mounting head picks up the electronic components and rises, the spring ring will spring back to its original size, and the sliding column will also slide down and return to its original position to carry out the next mounting process.

[0015] (3) In this utility model, by setting an anti-overflow fixing ring, the lubricating oil will not overflow when the sliding column is lubricated in real time. The sliding column itself will not leave too much lubricating oil on the sliding column when it slides by rubbing against the sealing ring. However, a small amount of lubricating oil will inevitably accumulate on the sliding column after long-term operation. The inner groove of the anti-overflow fixing ring can collect the small amount of lubricating oil on the sliding column, avoid dirtying electronic components, and ensure the mounting quality.

[0016] In summary, this device has the advantages of providing supplemental lighting during chip image acquisition to ensure complete information and avoid blurring, and can also lubricate the placement head in real time when picking up electronic components to prevent jamming and ensure smoother placement, making it particularly suitable for the field of pick-and-place machine technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the rear end structure of the device housing in this utility model.

[0020] Figure 3 This is a schematic diagram of the front structure of the equipment board in this utility model.

[0021] Figure 4 This is a schematic diagram of the swing arm unit structure in this utility model.

[0022] Figure 5 This is a schematic diagram of the mounting head assembly structure in this utility model.

[0023] Figure 6 This is a schematic diagram of the mounting nozzle structure in this utility model.

[0024] Figure 7 This is a schematic diagram of the internal structure of the lubrication tube and the mounting nozzle in this utility model. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figures 1 to 7 As shown, this utility model provides a high-precision placement head mechanism, including a device plate 1, a mounting base 11 at the rear center of the device plate 1, a device housing 12 at the front end of the device plate 1, a recognition camera 121 at the rear center of the device housing 12, a supplementary light block 122 at the lower end of the recognition camera 121, a photographing channel 123 at the center inside the supplementary light block 122, a supplementary light mirror at the lower side of the supplementary light block 122, a swing arm unit 2 at the upper front end of the device plate 1, and guide rails 3 at both the left and right front ends of the device plate 1, with a placement head assembly 4 slidably connected to the front of the guide rails 3.

[0028] Furthermore, the rear end of the swing arm unit 2 is provided with a swing arm motor 21 to provide driving force. The front end center of the swing arm motor 21 is provided with a transmission shaft 22. The front end of the transmission shaft 22 is fixedly connected to the swing arm 23. The swing arm 23 is located at the upper end of the device block 411, and the swing arm motor 21 is located on the rear side of the equipment plate 1.

[0029] Furthermore, the mounting head assembly 4 has a device plate 41 at its rear end, a device block 411 at the upper front end of the device plate 41, a mounting head 42 at the center of the front side of the device block 411, an air duct connecting pipe 421 at the uppermost end of the mounting head 42 for connecting to an external vacuum pump for vacuum gas, a hollow motor 43 at the center of the lower end of the mounting head 42 for providing rotational driving force for the mounting nozzle 44, a hollow shaft 431 at the center of the hollow motor 43 for vertically penetrating the hollow motor 43, and a connector 432 at the outer side of the lower end of the hollow shaft 431 for movably connecting the mounting nozzle 44.

[0030] Furthermore, the upper end of the mounting nozzle 44 is provided with a quick connector 441. The quick connector 441 can be inserted into the connector 432 to ensure stability and also allows for quick replacement of the mounting nozzle 44. The quick connector 441 has an air channel in the center to provide space for gas passage. The lower end of the quick connector 441 is provided with a sealing tube 442 to ensure that the vacuum gas does not leak out. The lower end of the sealing tube 442 is provided with a lubrication tube 443.

[0031] Furthermore, the upper right end of the lubrication tube 443 is provided with an oil inlet 4431. When the lubrication oil inside the lubrication tube 443 is insufficient, oil can be added through the oil inlet 4431. The lower center of the lubrication tube 443 is provided with a sealing ring 4432. The inner side of the sealing ring 4432 is movably connected to a sliding column 446. When the sliding column 446 slides up and down by rubbing against the sealing ring 4432, it will not leave too much lubricating oil on the sliding column 446. The sliding column 446 is provided with a vacuum tube 4461. The upper end of the vacuum tube 4461 extends into the interior of the sealing tube 442. The vacuum tube 4461 can use an external vacuum pump connected to the air passage connecting pipe 421 to apply to the mounting nozzle 44 for picking up electronic components.

[0032] Furthermore, the lower end of the sliding post 446 is fixedly connected to an anti-overflow fixing ring 4462, and the upper end of the anti-overflow fixing ring 4462 is provided with an inner groove 4463. The outer side of the sliding post 446 is provided with a spring ring 445. The sliding post 446 itself will not leave too much lubricating oil on the sliding post 446 when it slides up and down by rubbing against the sealing ring 4432. However, after long-term operation, a small amount of lubricating oil will inevitably accumulate on the sliding post 446. The inner groove 4463 of the anti-overflow fixing ring 4462 can collect the small amount of lubricating oil on the sliding post 446, so as to avoid contaminating electronic components and ensure the mounting quality. The spring ring 445 plays a buffering role.

[0033] Working process: First, the equipment is installed onto the sliding device of the pick-and-place machine via mounting base 11. Then, the machine runs, and the recognition camera 121 begins to capture chip images and information. The supplementary light mirror at the lower end of the supplementary light block 122 uses the principle of reflection to enhance the light on the chip below, providing precise positional supplementary light so that the recognition camera 121 does not affect the image capture and there are no blurry or shadowy images, ensuring accurate chip placement. Next, the swing arm motor 21 runs, driving the drive shaft 22. The front end of the drive shaft 22 is fixedly connected to the left and right ends of the swing arm 23, which begins to press up and down, pushing the placement head assembly 4 device block 411 on the left and right sides of the lower end of the swing arm 23 along the guide rail 3. During the next downward movement, after the placement nozzle 44 presses onto the worktable, the sliding column 446 encounters resistance and rises, sliding into the lubrication tube 443. The sliding column 446 is continuously lubricated by the lubricating oil in the lubrication tube 443, allowing it to rise and fall frequently without jamming when picking up electronic components, making it smoother. Then, the placement nozzle 44 picks up electronic components through the vacuum channel 4461. The spring coil 445 acts as a buffer to prevent pressure from damaging the electronic components. When the placement head 42 picks up the electronic components and rises, the spring coil 445 will spring back to its original size, and the sliding column 446 will also slide down and return to its original position to proceed to the next placement process.

[0034] Secondly, the sliding post 446 itself will not leave too much lubricating oil on the sliding post 446 when it slides up and down by rubbing against the sealing ring 4432. However, a small amount of lubricating oil will inevitably accumulate on the sliding post 446 after long-term operation. The inner groove 4463 of the anti-overflow fixing ring 4462 can collect the small amount of lubricating oil on the sliding post 446, so as to avoid contaminating electronic components and ensure the mounting quality.

[0035] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0036] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0037] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A high precision pick-and-place head mechanism, characterized in that: The device plate (1) is provided with a mounting seat (11) at the rear end center, and is provided with a device shell (12) at the front end, and the device shell (12) is provided with an identification camera (121) at the rear side center, and the identification camera (121) is provided with a light supplementing block (122) at the lower end, and the light supplementing block (122) is provided with a photographing channel (123) at the inner center, and the light supplementing block (122) is provided with a light supplementing mirror at the lower side, and the device plate (1) is provided with a swing arm unit (2) at the front side upper end, and the device plate (1) is provided with a guide rail (3) at the front side left and right ends, and the guide rail (3) is slidably connected with a mounting head assembly (4).

2. The high-precision patch machine head mechanism according to claim 1, wherein, The swing arm unit (2) is provided with a swing arm motor (21) at the rear end, and the swing arm motor (21) is provided with a transmission shaft (22) at the front end center, and the transmission shaft (22) is fixedly connected with a swing arm (23) at the front end, and the swing arm motor (21) is located at the rear side of the device plate (1).

3. The high-precision patch machine head mechanism according to claim 1, wherein, The mounting head assembly (4) is provided with a device plate (41) at the rear end, and the device plate (41) is provided with a device block (411) at the front end upper side, and the device block (411) is provided with a mounting head (42) at the front side center, and the mounting head (42) is provided with an air channel connecting pipe (421) at the uppermost end, and the mounting head (42) is provided with a hollow motor (43) at the lower end center position, and the hollow motor (43) is provided with a hollow shaft (431) at the center, and the hollow shaft (431) penetrates the hollow motor (43) up and down, and the hollow shaft (431) is provided with a connector (432) at the lower end outer side, and the connector (432) is movably connected with a mounting suction nozzle (44).

4. The high-precision patch machine head mechanism according to claim 3, wherein, The mounting suction nozzle (44) is provided with a quick connector (441) at the upper end, and the quick connector (441) is provided with an air channel at the inner center, and the quick connector (441) is provided with a sealing pipe (442) at the lower end, and the sealing pipe (442) is provided with a lubricating pipe (443) at the lower end.

5. A high precision patch head mechanism according to claim 4, wherein, The lubricating pipe (443) is provided with an oil injection port (4431) at the right side upper end, and the lubricating pipe (443) is provided with a sealing ring (4432) at the inner lower end center, and the sealing ring (4432) is movably connected with a sliding column (446) at the inner side, and the sliding column (446) is provided with a vacuum air pipe (4461) at the inner side, and the vacuum air pipe (4461) extends to the inner side of the sealing pipe (442) at the upper end.

6. A high precision patch head mechanism according to claim 5, wherein, The sliding column (446) is fixedly connected with an anti-overflow fixing ring (4462) at the lower end, and the anti-overflow fixing ring (4462) is provided with an inner groove (4463) at the upper end, and the sliding column (446) is provided with a spring ring (445) at the outer side.

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