Dispensing and mounting head and chip mounter

Abstract

The utility model discloses a kind of dispensing head and chip mounter, the dispensing head includes support frame and is set to support frame on suction nozzle assembly, dispensing assembly and camera assembly, the suction nozzle assembly, dispensing assembly and camera assembly are arranged along horizontal direction in parallel;The chip mounter includes the dispensing head.The utility model when pasting dispensing head only needs to move smaller displacement, can be carried out dispensing by dispensing assembly, improves the mounting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of surface mount technology, specifically to a dispensing head and a chip mounter. Background Technology

[0002] Pick and place machines are the most critical equipment in the SMT (Surface Mount Technology) industry. SMT is a comprehensive technology that emerged due to the development of semiconductor process technology. It involves electronic components, soldering and assembly technologies, and is mainly used for the placement of electronic components.

[0003] In electronic manufacturing processes such as SMT (Surface Mount Technology) assembly, the first step is usually to apply adhesive to the corresponding positions on the PCB board. Then, the component placement process is carried out, where the components are placed on the applied adhesive positions. Finally, the adhesive is cured through a curing process, which firmly fixes the components to the PCB board.

[0004] In existing pick-and-place machines, the dispensing mechanism and the placement mechanism are two independent mechanisms that operate separately and require avoidance actions, which results in low placement efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a dispensing head and a chip mounter, which can dispense adhesive during chip mounting, thereby improving mounting efficiency.

[0006] On the one hand, the technical solution adopted by this utility model to solve its technical problem is:

[0007] A dispensing head includes a support frame and a nozzle assembly, a dispensing assembly, and a camera assembly disposed on the support frame, wherein the nozzle assembly, the dispensing assembly, and the camera assembly are arranged side by side in a horizontal direction.

[0008] As a further improvement to the above technical solution, the dispensing assembly includes a dispensing Z-axis base, a Z-axis drive module, a dispensing fixing plate, and a dispensing head. The dispensing Z-axis base is fixedly connected to the support frame, the Z-axis drive module is mounted on the dispensing Z-axis base, and the dispensing head is mounted on the output end of the Z-axis drive module through the dispensing fixing plate. The Z-axis drive module is used to drive the dispensing head to move along the Z-axis direction.

[0009] As a further improvement to the above technical solution, the Z-axis drive module includes a motor, a lead screw module, and a guide structure. The motor is coaxially connected to the lead screw of the lead screw module, the nut of the lead screw module is connected to the dispensing fixing plate, and the dispensing fixing plate is slidably connected to the dispensing Z-axis base along the Z-axis direction through the guide structure.

[0010] As a further improvement to the above technical solution, the guide structure includes a guide rail fixedly connected to the dispensing Z-axis base and a slider fixedly connected to the dispensing fixing plate, wherein the slider is slidably connected to the guide rail.

[0011] As a further improvement to the above technical solution, the dispensing Z-axis base is provided with Z-axis blocking blocks at both ends of the guide rail, and the Z-axis blocking blocks are used to limit the slider.

[0012] As a further improvement to the above technical solution, a groove-shaped photoelectric sensor is provided on the dispensing Z-axis base, and a dispensing Z-axis light-shielding plate that works in conjunction with the groove-shaped photoelectric sensor is provided on the dispensing fixing plate.

[0013] As a further improvement to the above technical solution, the support frame is provided with multiple sets of suction nozzle assemblies arranged in parallel.

[0014] As a further improvement to the above technical solution, the suction nozzle assembly includes a suction nozzle, a suction nozzle mounting base, a manifold, and a solenoid valve. The suction nozzle mounting base and the manifold are both fixedly connected to the support frame. The suction nozzle is mounted on the suction nozzle mounting base and connected to the manifold via an air pipe. The manifold is used to connect to an external air source, and the solenoid valve is connected to the manifold.

[0015] As a further improvement to the above technical solution, the camera assembly includes a left camera and a right camera, and the support frame is provided with the left camera, the dispensing assembly, the nozzle assembly and the right camera in sequence from left to right.

[0016] On the other hand, this utility model also provides the following technical solution:

[0017] A pick-and-place machine includes the dispensing and placement head described in the above technical solution.

[0018] The beneficial effects of this utility model are: This utility model integrates the dispensing component and the nozzle component into one unit, which can perform dispensing during the placement process. The dispensing action and the placement action avoid each other by moving a short distance, thus improving the placement efficiency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an assembly diagram of a dispensing and mounting head according to an embodiment of this utility model;

[0021] Figure 2 This is a front view of a dispensing and mounting head according to an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the dispensing assembly of a dispensing and mounting head according to an embodiment of the present invention;

[0023] Figure 4 This is a structural exploded view of the dispensing assembly of a dispensing and mounting head according to an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the nozzle assembly of a dispensing head in an embodiment of this utility model.

[0025] Reference numerals: 1. Support frame; 2. Left camera; 3. Dispensing assembly; 31. Dispensing head; 32. Dispensing fixing plate; 33. Z-axis drive module; 331. Motor; 332. Lead screw; 333. Nut; 334. Z-axis blocking block; 335. Guide rail; 336. Slider; 337. Slotted photoelectric sensor; 338. Dispensing Z-axis light shield; 34. Dispensing Z-axis base; 4. Nozzle assembly; 41. Nozzle; 42. Nozzle mounting base; 43. Manifold; 44. Solenoid valve; 5. Right camera. Detailed Implementation

[0026] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0027] Reference Figure 1 and Figure 2 This utility model provides a dispensing and mounting head, including a support frame 1 and a nozzle assembly 4, a dispensing assembly 3, and a camera assembly disposed on the support frame 1. The nozzle assembly 4, the dispensing assembly 3, and the camera assembly are arranged side by side in a horizontal direction. The dispensing assembly 3 is used for dispensing adhesive to the corresponding position on the PCB board. The nozzle assembly 4 is used to pick up components and attach them to the adhesive position on the PCB board to complete the mounting work. The camera assembly is used to take pictures of the dispensing and mounting position and to detect the mounting quality.

[0028] In this embodiment, refer to Figure 3 The dispensing assembly 3 includes a dispensing Z-axis base 34, a Z-axis drive module 33, a dispensing fixing plate 32, and a dispensing head 31. The dispensing Z-axis base 34 is fixedly connected to the support frame 1. The Z-axis drive module 33 is mounted on the dispensing Z-axis base 34. The dispensing head 31 is mounted on the output end of the Z-axis drive module 33 through the dispensing fixing plate 32. The Z-axis drive module 33 is used to drive the dispensing head 31 to move along the Z-axis direction. During dispensing, the Z-axis drive module 33 drives the dispensing head 31 to move downwards to contact the PCB board, thereby applying glue to the PCB board.

[0029] It is understood that the dispensing head 31 can adopt a pneumatic dispensing, piston dispensing, screw dispensing, or other structures. In this embodiment, the dispensing head 31 adopts a screw dispensing structure, and the dispensing amount is precisely controlled by a screw valve.

[0030] Furthermore, refer to Figure 4 The Z-axis drive module 33 includes a motor 331, a lead screw 332 module, and a guide structure. The motor 331 is mounted on the dispensing Z-axis base 34 via a motor 331 base. The two ends of the lead screw 332 in the lead screw 332 module are mounted on the dispensing Z-axis base 34 via bearing mounting seats. The main shaft of the motor 331 is coaxially connected to the lead screw 332 of the lead screw 332 module via a coupling. The nut 333 of the lead screw 332 module is connected to the dispensing fixing plate 32, and the dispensing fixing plate 32 is slidably connected to the dispensing Z-axis base 34 along the Z-axis direction via the guide structure. Specifically, the guide structure includes a guide rail 335 fixedly connected to the dispensing Z-axis base 34 and a slider 336 fixedly connected to the dispensing fixing plate 32. The slider 336 is slidably connected to the guide rail 335. When the motor 331 is running, its main shaft drives the lead screw 332 to rotate, thereby driving the nut 333 to move on the lead screw 332, and in turn driving the dispensing fixing plate 32 and the dispensing head 31 to move along the Z-axis.

[0031] It is understood that the dispensing Z-axis base 34 is provided with Z-axis blocking blocks 334 at both ends of the guide rail 335. The Z-axis blocking blocks 334 are used to limit the slider 336, thereby preventing the slider 336 from sliding off the guide rail 335 and ensuring the structural reliability of the dispensing assembly 3.

[0032] In a preferred embodiment, a slotted photoelectric sensor 337 is provided on the dispensing Z-axis base 34, and a dispensing Z-axis light-shielding plate 338 is provided on the dispensing fixing plate 32 to cooperate with the slotted photoelectric sensor 337. Through the action of the dispensing Z-axis light-shielding plate 338 and the slotted photoelectric sensor 337, the displacement of the dispensing fixing plate 32 can be accurately detected. The slotted photoelectric sensor 337 is electrically connected to the controller of the motor 331, thereby realizing precise control of the lifting height of the dispensing head 31.

[0033] In this embodiment, refer to Figure 1 and Figure 2 The support frame 1 is equipped with three sets of suction nozzle assemblies 4 arranged in parallel, which can simultaneously pick up three components, improving placement efficiency. Specifically, refer to... Figure 5 The nozzle assembly 4 includes a nozzle 41, a nozzle mounting base 42, a manifold 43, and a solenoid valve 44. The nozzle mounting base 42 and the manifold 43 are both fixedly connected to the support frame 1. The nozzle 41 is mounted on the nozzle mounting base 42 and connected to the manifold 43 via an air tube. The manifold 43 is used to connect to an external air source. The solenoid valve 44 is connected to the manifold 43. When the nozzle 41 picks up components, the solenoid valve 44 controls the gas passage between the external air source (vacuum generator or vacuum pump) and the nozzle 41, realizing the generation and release of vacuum. When a component needs to be picked up, the solenoid valve 44 opens the vacuum passage, causing the placement head to generate vacuum suction and pick up the component. After the component is placed in position, the solenoid valve 44 closes the vacuum passage, releasing the vacuum, allowing the component to be accurately placed on the PCB board.

[0034] In a preferred embodiment, the camera assembly includes a left camera 2 and a right camera 5. The support frame 1 is provided with the left camera 2, the dispensing assembly 3, the nozzle assembly 4 and the right camera 5 from left to right. The left and right cameras are used to detect the position and quality of the PCB dispensing and mounting, thereby improving the quality of the mounting.

[0035] Another embodiment of this utility model provides a pick and place machine, including the dispensing and placement head in the above embodiment. This pick and place machine integrates dispensing and placement into one unit, reducing costs and improving placement efficiency.

[0036] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A dispensing and mounting head, characterized in that: The device includes a support frame and a nozzle assembly, a dispensing assembly, and a camera assembly mounted on the support frame. The nozzle assembly, dispensing assembly, and camera assembly are arranged side by side in a horizontal direction. The dispensing assembly includes a dispensing Z-axis base, a Z-axis drive module, a dispensing fixing plate, and a dispensing head. The dispensing Z-axis base is fixedly connected to the support frame. The Z-axis drive module is mounted on the dispensing Z-axis base. The dispensing head is mounted on the output end of the Z-axis drive module via the dispensing fixing plate. The Z-axis drive module is used to drive the dispensing head to move along the Z-axis direction. The Z-axis drive module includes a motor, a lead screw module, and a guide structure. The motor is coaxially connected to the lead screw of the lead screw module. The nut of the lead screw module is connected to the dispensing fixing plate, and the dispensing fixing plate is slidably connected to the dispensing Z-axis base along the Z-axis direction via the guide structure.

2. The dispensing and mounting head according to claim 1, characterized in that: The guide structure includes a guide rail fixedly connected to the dispensing Z-axis base and a slider fixedly connected to the dispensing fixing plate, the slider being slidably connected to the guide rail.

3. The dispensing and mounting head according to claim 2, characterized in that: The dispensing Z-axis base is provided with Z-axis blocking blocks at both ends of the guide rail, and the Z-axis blocking blocks are used to limit the slider.

4. The dispensing and mounting head according to claim 3, characterized in that: A slotted photoelectric sensor is provided on the dispensing Z-axis base, and a dispensing Z-axis light-shielding plate is provided on the dispensing fixing plate to cooperate with the slotted photoelectric sensor.

5. The dispensing and mounting head according to claim 1, characterized in that: The support frame is equipped with multiple sets of suction nozzle assemblies arranged in parallel.

6. The dispensing and mounting head according to claim 5, characterized in that: The suction nozzle assembly includes a suction nozzle, a suction nozzle mounting base, a manifold, and a solenoid valve. The suction nozzle mounting base and the manifold are both fixedly connected to the support frame. The suction nozzle is mounted on the suction nozzle mounting base and connected to the manifold via an air pipe. The manifold is used to connect to an external air source. The solenoid valve is connected to the manifold.

7. The dispensing and mounting head according to claim 1, characterized in that: The camera assembly includes a left camera and a right camera, and the support frame is provided with the left camera, the dispensing assembly, the nozzle assembly and the right camera in sequence from left to right.

8. A pick-and-place machine, characterized in that: Includes the dispensing and mounting head as described in any one of claims 1-7.

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