Multi-suction-nozzle mounting head device of chip mounter

Abstract

The utility model discloses a multi-suction nozzle mounting head device of a chip mounter, which relates to the technical field of chip mounter accessories and comprises a head mounting machine body, a top shaft is arranged at the top end of the head mounting machine body, a bearing shaft is arranged at the top end of the top shaft, and an auxiliary structure is arranged on the outer side of the head mounting machine body. The bottom end of the head mounting machine body is provided with a base plate, the inner side of the bottom end of the base plate is annularly provided with a through hole, the outer side of the bottom end of the base plate is annularly provided with a suction head body, the bottom end of the suction head body is provided with a suction nozzle body, and the inner side of the through hole is vertically provided with a suction resisting structure in a penetrating manner. The position of the curved pipe is close to the outer side of the limiting rod after being reversely rotated, at the moment, the overall structure of the limiting rod protrudes out of the front end of the curved pipe, the overall working expression form of the head mounting machine body is changed, and a worker can record the working state of the head mounting machine body by observing the relation between the curved pipe and the limiting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of chip placement machine accessories, specifically a multi-nozzle placement head device for a chip placement machine. Background Art

[0002] Chip placement machines are key equipment in the electronics manufacturing industry, primarily used to precisely place surface mount components (SMDs) onto printed circuit boards (PCBs). Their basic functions include precise positioning and placement of SMD components, high-speed automated operation, and handling of components of various sizes and types. Chip placement machines primarily consist of a feeding system, a pickup system, a vision system, a motion control system, a conveyor system, and a control system. Their operating principle involves the steps of component recognition, pickup, positioning, placement, and circulation. Key technical specifications for chip placement machines include placement speed, accuracy, component size range, and feeder capacity. Chip placement machines can be categorized based on speed, accuracy, and structure. In recent years, chip placement machines have shown a trend toward intelligent features, including automatic parameter adjustment, real-time quality monitoring and data analysis, remote control and maintenance, and integration with manufacturing execution systems (MES). Chip placement machines are widely used in consumer electronics, communications equipment, automotive electronics, medical devices, and industrial control systems. To maintain chip placement machine performance, regular maintenance tasks such as cleaning, lubrication, component inspection and replacement, vision system calibration, and software updates are required. Development trends in placement machines include improving placement speed and accuracy, enhancing intelligence and self-diagnostic capabilities, enhancing multifunctional placement capabilities, and improving environmentally friendly and energy-saving designs. When selecting a placement machine, factors such as production requirements, component handling capacity, equipment reliability, supplier support, and equipment scalability need to be considered. As core equipment in the electronics manufacturing industry, placement machine performance directly impacts product quality and production efficiency. As electronic products move toward miniaturization and higher integration, placement machines are also evolving to meet higher precision and efficiency requirements. At the same time, intelligence and flexibility are becoming key development directions to accommodate the needs of high-variety, small-batch production.

[0003] The multi-nozzle placement head is a significant technological innovation in placement machines, significantly improving their efficiency and flexibility. It is a placement system capable of operating multiple nozzles simultaneously, allowing the machine to pick and place multiple components simultaneously in a single movement. Its key features include simultaneous operation of multiple components, improved placement speed and efficiency, flexible adaptation to components of varying sizes and types, and reduced head movement times, thus reducing mechanical wear. The multi-nozzle placement head operates by simultaneously picking up components, moving them onto the PCB, placing them according to a program, and repeating this process until all components have been placed. This technology offers numerous advantages, including significantly increased placement speed, improved production efficiency, reduced energy consumption, and improved placement accuracy. Its structural design incorporates multiple independently controlled nozzles, a sophisticated motion control system, a high-speed vision recognition system, and sophisticated control algorithms. Multi-nozzle placement heads are primarily used in high-volume production lines, for products requiring high-speed placement, and for PCBs with densely packed components. Despite challenges such as simultaneous handling of components of varying sizes and complex path planning, these challenges have been addressed through the use of nozzles with independent height and suction force control, as well as advanced algorithms for optimizing placement sequences and paths. Future development trends include integrating more nozzles, developing smarter adaptive control systems, integrating artificial intelligence (AI) to achieve self-learning and self-optimization, and implementing more sophisticated motion control to accommodate smaller components. Maintenance requires regular inspection and calibration of each nozzle, ensuring the cleanliness and efficient operation of the vacuum system, and performing software updates to optimize control algorithms. When selecting a multi-nozzle placement head, considerations include the number and configuration of nozzles, the applicable component size range, placement accuracy and speed, compatibility with existing production lines, and upgrade and expansion capabilities. The application of multi-nozzle placement head technology represents a significant trend in the development of placement machines towards higher efficiency, higher precision, and greater flexibility. It not only improves production efficiency but also enables the manufacture of more complex and sophisticated electronic products. As electronic products continue to become smaller and more integrated, multi-nozzle placement head technology will continue to evolve to meet increasing production requirements.

[0004] Application number CN201420604820.7, a multi-nozzle placement head device for a chip placement machine, comprises a Z-axis servo drive system, a fixed frame, and a plurality of nozzle assemblies. Through the above-described approach, the multi-nozzle placement head device for a chip placement machine of the utility model has advantages such as optimized design, novel structure, stable performance, accurate precision, reduced cost, and improved efficiency. It has broad market prospects for the popularization of multi-nozzle placement head devices for chip placement machines. However, during use, the device cannot guarantee that the mechanical structure can maintain normal operation when the device rotates at high speeds.

[0005] Therefore, in view of this, the existing deficiencies are studied and improved, and a multi-nozzle placement head device for a placement machine is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-nozzle placement head device for a placement machine to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a multi-nozzle placement head device of a placement machine, comprising: a placement head body, a top shaft being provided at the top of the placement head body, a receiving shaft being provided at the top of the top shaft, and an auxiliary structure being provided on the outside of the placement head body;

[0008] A chassis is provided at the bottom end of the head loading machine body, a through hole is provided in an inner ring shape on the inner side of the bottom end of the chassis, a suction head body is provided in an outer ring shape on the bottom end of the chassis, a suction nozzle body is provided at the bottom end of the suction head body, and a suction-blocking structure is provided vertically through the inner side of the through hole.

[0009] Furthermore, the auxiliary structure includes a limit rod, a convex cylinder, a curved tube, a rotating cover and an extension body. A limit rod is provided in a ring shape on the outer side of the head loading machine body, a convex cylinder is provided through the upper end of the inner side of the chassis, a rotating cover is provided at the top end of the convex cylinder, a curved tube is provided at the top end of the rotating cover, and an extension body is provided at the bottom end of the rotating cover. The maximum width of the extension body is slightly smaller than the diameter of the chassis, so that the extension body can rotate on the inner side of the chassis.

[0010] Furthermore, the outer shape of the curved tube is L-shaped, and the curved tube and the rotating cover are fixedly connected, so that the curved tube can resist the limit rod after reverse rotation.

[0011] Furthermore, the setting direction of the limit rod is in the same direction as the forward rotation direction of the head mounting machine body, which makes it easy for staff to distinguish the rotation direction of the limit rod.

[0012] Furthermore, the anti-suction structure includes a swivel, a blocking plate, a push rod, a bearing ball and a swivel. The bottom end of the chassis is vertically provided with a swivel, the bottom end of the swivel is provided with a bearing ball, the lower end of the outer side of the swivel is annularly fixed with a swivel, a push rod is fixed on one side of the swivel, and a blocking plate is annularly provided on the outer side of the bearing ball. The length of the blocking plate is equal to the distance between the suction nozzle body and the bearing ball, so that the blocking plate can cover the bottom end of the suction nozzle body after rotation.

[0013] Furthermore, the push rod has an L-shaped shape, and the position of the rotating plate is parallel to the position of the blocking plate, so that the staff can easily distinguish whether the blocking plate and the rotating plate are misaligned.

[0014] Furthermore, a threaded structure is provided between the bearing ball and the swivel, which facilitates installation between the bearing ball and the swivel.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model rotates the curved tube, which then drives the rotary cover to rotate on the inner side of the convex cylinder, and the rotary cover drives the extension body to rotate. When the staff sees the change in the position of the curved tube, they can know that the extension body has been changed, and the position of the curved tube has rotated in the opposite direction and is close to the outside of the limit rod. At this time, the entire structure of the limit rod will protrude from the front end of the curved tube. At this time, the overall working form of the head loading machine body will change. The staff can record the working status of the head loading machine body by observing the relationship between the curved tube and the limit rod.

[0017] 2. The utility model drives the swivel to rotate through the extension body, and the swivel drives the bearing ball and the blocking piece to rotate, and the blocking piece will cover the bottom opening of the nozzle body, and the relative positions of the rotating piece and the blocking piece are parallel to each other. When the staff finds that the positions of the rotating piece and the blocking piece are misaligned, they will know that the connection between the bearing ball, the blocking piece and the swivel will be loose, so that the staff can block the bottom opening of the nozzle body, and the staff can also determine whether the blocking piece can work by observing the positional relationship between the blocking piece and the rotating piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the first appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the second appearance structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the third appearance structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the fourth appearance structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the fifth appearance structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the first chassis structure of the utility model;

[0024] Figure 7 This is a schematic diagram of the second chassis structure of the present utility model;

[0025] Figure 8 This is a schematic diagram of the appearance structure of the utility model A;

[0026] Figure 9 This is a schematic diagram of the anti-absorption structure of the utility model;

[0027] Figure 10 This is a schematic diagram of the third chassis structure of the present utility model;

[0028] Figure 11 This is a schematic diagram of the structure of the anti-absorption a of the utility model;

[0029] Figure 12 This is a schematic diagram of the absorption resistance b structure of the utility model.

[0030] In the figure: 1. Supporting shaft; 2. Head loading machine body; 3. Chassis; 4. Suction head body; 5. Suction nozzle body; 6. Top shaft; 7. Auxiliary structure; 701. Limit rod; 702. Convex cylinder; 703. Curved tube; 704. Rotating cover; 705. Extension body; 8. Anti-suction structure; 801. Rotating body; 802. Blocking plate; 803. Push rod; 804. Bearing ball; 805. Rotating plate; 9. Through hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1-12 As shown, a multi-nozzle placement head device of a placement machine includes: a placement head body 2, a top shaft 6 is provided at the top of the placement head body 2, a receiving shaft 1 is provided at the top of the top shaft 6, and an auxiliary structure 7 is provided on the outside of the placement head body 2;

[0033] A chassis 3 is provided at the bottom end of the head loading machine body 2, a through hole 9 is provided in an inner ring shape in the bottom end of the chassis 3, a suction head body 4 is provided in an outer ring shape in the bottom end of the chassis 3, a suction nozzle body 5 is provided at the bottom end of the suction head body 4, and a suction-blocking structure 8 is provided vertically through the inner side of the through hole 9.

[0034] like Figures 1-12As shown, a multi-nozzle placement head device of a placement machine, the auxiliary structure 7 includes a limit rod 701, a convex cylinder 702, a curved tube 703, a rotary cover 704 and an extension body 705. The limit rod 701 is provided in an annular manner on the outer side of the head placement machine body 2, the convex cylinder 702 is provided through the upper end of the inner side of the chassis 3, the top of the convex cylinder 702 is provided with a rotary cover 704, the top of the rotary cover 704 is provided with a curved tube 703, and the bottom of the rotary cover 704 is provided with an extension body 705. 5. The maximum width of the extension body 705 is slightly smaller than the diameter of the chassis 3. When the head loading machine body 2 and the top shaft 6 move, the limit rod 701 will rotate in the specified direction along with the head loading machine body 2. When the limit rod 701 and the head loading machine body 2 are about to stop, the curved tube 703 is pressed by the limit rod 701 and begins to rotate. The curved tube 703 drives the rotating cover 704 to rotate inside the convex cylinder 702, and the rotating cover 704 drives the extension body 705 to rotate in the opposite direction.

[0035] The following effects and novel technologies were introduced:

[0036] Visual working status monitoring: By observing the relative position relationship between the curved tube 703 and the limit rod 701, the operator can intuitively understand the working status of the head loading machine body 2. This visual design allows the operator to quickly judge the operating status of the machine without complex monitoring equipment.

[0037] Automatic feedback mechanism: When the head loading machine body 2 moves to the specified position, the limit rod 701 triggers the rotation of the curved tube 703, which in turn drives the movement of other components of the entire auxiliary structure 7. This design realizes automatic feedback of the mechanical structure without the need for an additional electronic control system.

[0038] Multi-stage linkage structure: From the limit rod 701 to the curved tube 703, and then to the rotating cover 704 and the extension body 705, a multi-stage linkage mechanical structure is formed. This design can transmit and amplify the motion state of the head loading machine body 2 step by step, improving the accuracy and readability of the status indication.

[0039] Compact design: The width of the extension body 705 is slightly smaller than the diameter of the chassis 3, so that the entire structure can be compactly installed in the chassis 3, saving space while ensuring smooth movement.

[0040] Directional indication: The setting direction of the limit rod 701 is consistent with the forward rotation direction of the head loading machine body 2. This design provides the operator with an intuitive directional indication, which helps to quickly judge the movement status of the machine.

[0041] L-shaped curved tube 703 design: The curved tube 703 adopts an L-shaped design, which increases the contact area with the limit rod 701 and improves the reliability and stability of the trigger.

[0042] Mechanical status recording: Through the position change of the curved tube 703, the system realizes the mechanical recording of the working status of the head mounting machine body 2 without the need for a complex electronic recording system.

[0043] Modular design: The entire auxiliary structure 7 is composed of multiple relatively independent components, has good modular characteristics, and is easy to maintain and replace.

[0044] The novelty of this design lies in its clever use of a purely mechanical structure to indicate and record the working status, avoiding the complexity and potential failures of the electronic system while providing intuitive and reliable status feedback. This is particularly suitable for industrial environments that require high reliability and intuitive operation, such as application scenarios of precision equipment such as placement machines.

[0045] like Figures 1-12 As shown, a multi-nozzle placement head device of a placement machine, the suction resistance structure 8 includes a swivel 801, a blocking plate 802, a push rod 803, a bearing ball 804 and a swivel 805. The bottom end of the chassis 3 is vertically provided with a swivel 801, the bottom end of the swivel 801 is provided with a bearing ball 804, the lower end of the outer side of the swivel 801 is annularly fixed with a swivel 805, a push rod 803 is fixed on one side of the swivel 805, and a blocking plate 802 is annularly provided on the outer side of the bearing ball 804. The length of the blocking plate 802 is equal to the distance between the nozzle body 5 and the bearing ball 804. 802 , the extension body 705 drives the rotating body 801 and the bearing ball 804 to rotate in the opposite direction, and the bearing ball 804 drives the push rod 803 to rotate to the bottom of the nozzle body 5, and the nozzle body 5 will not continue to suck the piece. If the staff is disassembling the suction resistance structure 8, the position of the push rod 803 outside the bearing ball 804 and the relative position of the rotating piece 805 are not in a parallel position, and the bearing ball 804 on the side of the rotating piece 805 presses against the outer side of the blocking piece 802, the bearing ball 804 and the blocking piece 802 will not continue to rotate forward:

[0046] The following effects and novel technologies were introduced:

[0047] Automatic suction prevention: The extension 705 drives the swivel 801 and bearing ball 804 to rotate in opposite directions, which in turn drives the push rod 803 to rotate to the bottom of the nozzle body 5, achieving an automatic suction prevention function. This mechanical linkage design eliminates the need for an additional control system, simplifies the structure, and improves reliability.

[0048] Visual status indication: The relative position of the rotating piece 805 and the blocking piece 802 provides an intuitive status indication for the staff. If the two are misaligned, it indicates that the connection between the bearing ball 804, the blocking piece 802 and the rotating body 801 may be loose, and inspection and maintenance are required.

[0049] Precise blocking design: The length of the blocking piece 802 is exactly equal to the distance between the nozzle body 5 and the bearing ball 804, ensuring the accuracy and reliability of the blocking function.

[0050] Modular structure: The entire anti-absorption structure 8 is composed of multiple independent components and has good modular characteristics, which is convenient for maintenance, replacement and upgrading.

[0051] L-shaped push rod 803 design: The push rod 803 adopts L-shaped design, which increases the stability of the structure and the flexibility of operation.

[0052] Parallel alignment indication: The parallel design of the rotating plate 805 and the blocking plate 802 provides a method for staff to quickly determine the alignment status of the system, which helps to promptly discover and deal with potential problems.

[0053] Threaded connection design: The bearing ball 804 and the swivel 801 are connected by a threaded structure, which is convenient for installation and adjustment and provides the necessary stability.

[0054] Safety protection mechanism: When the position of the push rod 803 outside the bearing ball 804 is not parallel to the rotating plate 805, and the bearing ball 804 on the side of the rotating plate 805 presses against the blocking plate 802, the system will stop forward rotation. This design provides an additional safety protection mechanism.

[0055] Mechanical state locking: The relative position relationship between the components is used to achieve mechanical locking of the system state without the need for a complex electronic locking system.

[0056] Precise spacing control: The precise design of the length of the blocking piece 802 ensures precise spacing control between the blocking piece 802 and the nozzle body 5 when in the blocking position.

[0057] The novelty of this design lies in: it integrates multiple functions such as suction resistance, status indication and safety protection into a pure mechanical structure, uses the relative position relationship between components to achieve intuitive status indication and fault diagnosis, realizes automatic control through precise mechanical design, avoids complex electronic control systems, and adopts modular design to improve the maintainability and flexibility of the system.

[0058] This design is particularly well-suited for industrial environments requiring high reliability, easy maintenance, and intuitive operation, especially in applications such as precision equipment such as placement machines. It implements complex functions through a purely mechanical structure, reducing system complexity and potential failure points while providing intuitive status feedback and safety protection mechanisms.

[0059] Working principle: When using the multi-nozzle placement head device of the placement machine, first install the receiving shaft 1 and the top shaft 6 at the predetermined position of the placement machine, and then assemble the head mounting machine body 2 and the top shaft 6. When the head mounting machine body 2 and the top shaft 6 move, the limit rod 701 will follow the head mounting machine body 2 to rotate in the specified direction. When the limit rod 701 and the head mounting machine body 2 are about to stop, the curved tube 703 is pressed by the limit rod 701 and starts to rotate. The curved tube 703 drives the rotating cover 704 to rotate inside the convex cylinder 702, and the rotating cover 704 drives the extension body 705 to rotate in the opposite direction. The extension body 705 rotates in the opposite direction. 05 drives the rotating body 801 and the bearing ball 804 to rotate in the opposite direction, and the bearing ball 804 drives the push rod 803 to rotate to the bottom of the suction nozzle body 5, and the suction nozzle body 5 will not continue to suck the film. If the staff disassembles the anti-absorption structure 8, the position of the push rod 803 outside the bearing ball 804 is not parallel to the relative position of the rotating piece 805, and the bearing ball 804 on the side of the rotating piece 805 is against the outside of the blocking piece 802, the bearing ball 804 and the blocking piece 802 will not continue to rotate in the forward direction. This is the working principle of the multi-nozzle placement head device of the placement machine.

[0060] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A multi-nozzle placement head device for a placement machine, comprising: The head-mounting machine body (2) is characterized in that a top shaft (6) is provided at the top end of the head-mounting machine body (2), a receiving shaft (1) is provided at the top end of the top shaft (6), and an auxiliary structure (7) is provided on the outside of the head-mounting machine body (2); A chassis (3) is provided at the bottom end of the head loading machine body (2), a through hole (9) is provided in an annular shape on the inner side of the bottom end of the chassis (3), a suction head body (4) is provided in an annular shape on the outer side of the bottom end of the chassis (3), a suction nozzle body (5) is provided at the bottom end of the suction head body (4), and a suction resistance structure (8) is provided vertically through the inner side of the through hole (9).

2. The multi-nozzle placement head device of a placement machine according to claim 1, characterized in that: The auxiliary structure (7) includes a limiting rod (701), a convex cylinder (702), a curved tube (703), a rotating cover (704) and an extension body (705). The outer side of the head loading machine body (2) is provided with a limiting rod (701) in a ring shape. The upper end of the inner side of the chassis (3) is provided with a convex cylinder (702). The top end of the convex cylinder (702) is provided with a rotating cover (704). The top end of the rotating cover (704) is provided with a curved tube (703). The bottom end of the rotating cover (704) is provided with an extension body (705). The maximum width of the extension body (705) is slightly smaller than the diameter of the chassis (3).

3. The multi-nozzle placement head device of a placement machine according to claim 2, characterized in that: The curved tube (703) has an L-shaped outer shape, and the curved tube (703) and the rotating cover (704) are fixedly connected.

4. The multi-nozzle placement head device of a placement machine according to claim 2, characterized in that: The setting direction of the limiting rod (701) is in the same direction as the forward rotation direction of the head loading machine body (2).

5. The multi-nozzle placement head device of a placement machine according to claim 1, characterized in that: The suction resistance structure (8) comprises a swivel (801), a blocking plate (802), a push rod (803), a bearing ball (804) and a swivel (805); the swivel (801) is vertically arranged at the bottom end of the chassis (3); the bearing ball (804) is arranged at the bottom end of the swivel (801); a swivel (805) is fixed in an annular shape at the lower end of the outer side of the swivel (801); a push rod (803) is fixed on one side of the swivel (805); a blocking plate (802) is arranged in an annular shape on the outer side of the bearing ball (804); the length of the blocking plate (802) is equal to the distance between the nozzle body (5) and the bearing ball (804).

6. The multi-nozzle placement head device of a placement machine according to claim 5, characterized in that: The push rod (803) has an L-shaped shape, and the position of the rotating plate (805) is parallel to the position of the blocking plate (802).

7. The multi-nozzle placement head device of a placement machine according to claim 5, characterized in that: There is a threaded structure between the bearing ball (804) and the rotating body (801).

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