Quick-change ball mounting head

Abstract

The utility model relates to the technical field of ball mounting, in particular to a quick-change ball mounting head, which comprises a ball feeding assembly, a ball mounting component, a ball mounting component and a ball mounting component, the ball mounting component is provided with a ball mounting cavity with a downward opening, an avoiding hole communicated to the central position of the ball mounting cavity, and a ball feeding channel communicated to the edge position of the ball mounting cavity; the brush disc is positioned in the ball mounting cavity, and is positioned right below the avoiding hole; the quick release assembly is rotationally mounted at the position of the avoiding hole; wherein the quick release assembly has a clamping state for clamping and fixing the brush disc and enabling the brush disc to rotate along with the quick release assembly; and the clamping device has a clamping opening state for releasing the brush disc. The quick-change ball mounting head provided by the utility model not only can effectively solve the problem that the ball mounting of the existing ball mounting head is not uniform, but also can quickly finish the assembly, disassembly and replacement operation of the brush disc, thereby improving the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ball planting technology, and in particular to a quick-change ball planting head. Background Technology

[0002] The function of a solder ball placement head is to accurately place solder balls onto a substrate such as a circuit board or chip. In order to ensure that the solder balls can be evenly distributed on the substrate, most existing solder ball placement heads are of the air-blowing type, which uses air to disperse the solder balls so that they can be evenly distributed (evenly distributed means that the solder balls are laid out in a single layer without being stacked).

[0003] When the solder balls are small, the air blowing method is effective. However, when the solder balls are large, they are not easily moved by the air blowing, which significantly reduces the uniformity of the solder ball placement and increases the risk of missing solder balls. Specifically, missing solder balls refers to the situation where, during the solder ball placement process, some predetermined solder pad positions are not placed, resulting in missing solder balls at these positions.

[0004] Therefore, it is necessary to improve the existing bulb-planting head to solve the problem of uneven bulb planting.

[0005] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] One objective of this invention is to provide a quick-change ball-planting head that can effectively solve the problem of uneven ball planting in existing ball-planting heads.

[0007] To achieve the above objectives, this utility model provides a quick-change ball-planting head, comprising:

[0008] The ball-scoring assembly includes a ball-planting cavity with an opening facing downwards, a clearance hole communicating with the center of the ball-planting cavity, and a ball-scoring channel communicating with the edge of the ball-planting cavity.

[0009] A brush plate, which is located inside the ball-planting cavity and directly below the clearance hole;

[0010] A quick-release assembly is rotatably mounted at the clearance hole;

[0011] The quick-release assembly has a clamping state in which it clamps and fixes the brush disc, causing the brush disc to rotate with the quick-release assembly; and an opening state in which it releases the brush disc.

[0012] Optionally, the quick-release assembly includes:

[0013] A rotating bushing, which is rotatably installed in the clearance hole;

[0014] An elastic gripper sleeve, the lower end of which is inserted into the rotating bushing, and the upper end of which extends to the outside of the rotating bushing;

[0015] A flange plate, which is fixed to the upper end of the elastic gripper sleeve;

[0016] A clamping spring is sleeved on the rotating bushing and located below the flange plate. It is used to drive the elastic gripper sleeve to slide upward relative to the rotating bushing through the flange plate, so that the lower end of the elastic gripper sleeve is clamped by the resistance of the rotating bushing to clamp the brush disc.

[0017] A lifting pressure plate, which is located above the flange plate;

[0018] A clamping linear drive mechanism is provided, the drive end of which is connected to the lifting pressure plate. The mechanism is used to drive the lifting pressure plate downward so that the lower end of the elastic gripper sleeve extends outside the rotating bushing and releases the brush disc.

[0019] Optionally, the quick-release assembly further includes:

[0020] A rotary drive block, which is located inside the lifting pressure plate and is provided with a downwardly protruding limiting part;

[0021] A rotary drive mechanism, wherein the drive end of the rotary drive mechanism is fixedly connected to the rotary drive block, thereby driving the rotary drive block to rotate.

[0022] Optionally, the flange plate is provided with a vertical sliding groove that is slidably connected to the limiting part.

[0023] Optionally, the drive end of the rotary drive mechanism is directly opposite to and inserted into the upper end of the elastic gripper sleeve;

[0024] The drive end of the rotary drive mechanism and the central axis of the brush disk are both provided with hollow structures that connect to the elastic gripper sleeve, so that the drive end of the rotary drive mechanism, the elastic gripper sleeve, and the brush disk form a central air intake channel that connects to the space directly below the brush disk.

[0025] Optionally, a filter screen is provided at the lower end of the central air intake channel to restrict the welding balls from entering the central air intake channel.

[0026] Optional features also include a protective shield;

[0027] The protective cover is fixed to the top of the ball assembly and surrounds and protects the rotating bushing, elastic gripper sleeve, flange plate, and clamping spring.

[0028] The clamping linear drive mechanism is fixed to the outer side of the protective cover, and the lifting pressure plate passes through the protective cover and extends to the drive end of the clamping linear drive mechanism; wherein, the protective cover is provided with a pressure plate clearance groove for the lifting pressure plate to move up and down;

[0029] The rotary drive mechanism is fixed to the top of the protective cover.

[0030] Optionally, a bearing is provided between the rotating bushing and the clearance hole.

[0031] Optionally, the lower end of the elastic gripper sleeve is provided with a plurality of elastic clips, each of the elastic clips being evenly distributed around the central axis of the elastic gripper sleeve and having a gradually expanding structure toward the brush disk.

[0032] Optionally, the ball-planting assembly further includes an outer annular vent surrounding the ball-planting cavity and an outer air inlet channel connected to the outer annular vent.

[0033] The beneficial effects of this utility model are as follows: It provides a quick-change ball-planting head, the working principle of which can be divided into the following four key steps. By replacing the traditional air blowing method with mechanical sweeping, the uniformity of ball planting is significantly improved:

[0034] 1. Solder ball introduction stage

[0035] The welding ball enters the ball-planting cavity through the ball-planting channel, and then slides down through the gap between the brush plate and the ball-planting cavity to the bottom of the brush plate.

[0036] 2. Dynamic sweeping of the brush disc

[0037] When clamped, the quick-release assembly rotates the brush disc, dynamically adjusting the rotation speed according to the size of the solder balls, thus evenly sweeping the solder balls in all directions. The physical contact of the brush bristles overcomes the problem of large solder balls having high inertia, ensuring that each solder ball is evenly moved, ultimately resulting in a uniformly flat surface.

[0038] 3. Quick Adaptation Process

[0039] When switching solder ball diameter specifications, rotate the quick-release assembly to the open clamping position. The old brush plate can be quickly removed. At this time, the brush plate may contain solder ball residue, which needs to be cleaned. After replacing with a brush plate that matches the new solder ball diameter, simply lock the clamping position to complete the adaptation. The entire process requires no tools for disassembly, significantly reducing downtime.

[0040] Therefore, the quick-change ball-planting head provided by this utility model can not only effectively solve the problem of uneven ball planting in existing ball-planting heads, but also quickly complete the installation, removal and replacement of the brush disc, thereby improving production efficiency. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0042] Figure 1 A schematic diagram of the external structure of the quick-change ball-planting head provided in the embodiment;

[0043] Figure 2 A cross-sectional schematic diagram of the quick-change ball-planting head provided in the embodiment;

[0044] Figure 3 A schematic diagram of the structure of the elastic gripper sleeve provided in the embodiment;

[0045] Figure 4 This is a schematic diagram of the bottom structure of the rotary drive block provided in the embodiment.

[0046] In the picture:

[0047] 1. Ball-filling assembly; 101. Ball-filling cavity; 102. Clearance hole; 103. Ball-filling channel; 104. Outer ring vent; 105. Outer air intake channel;

[0048] 2. Brush plate;

[0049] 3. Quick-release components;

[0050] 301. Rotary bushing;

[0051] 302. Elastic gripper sleeve; 3021. Elastic clamping plate;

[0052] 303, Flange plate; 3031, Vertical slide groove;

[0053] 304. Clamping spring;

[0054] 305. Lifting pressure plate;

[0055] 306. Clamping linear drive mechanism;

[0056] 307. Rotary drive block; 3071. Limiting part;

[0057] 308. Rotary drive mechanism;

[0058] 309. Central air intake duct;

[0059] 4. Protective cover; 401. Pressure plate clearance groove;

[0060] 5. Filter screen;

[0061] 6. Bearings. Detailed Implementation

[0062] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0063] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0064] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0065] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0066] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0067] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0068] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0069] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0070] See Figures 1-4 This utility model provides a quick-change ball-mounting head, suitable for applications where solder balls need to be leveled, specifically including:

[0071] The ball-scoring assembly 1 has a ball-planting cavity 101 with an opening facing downward, a clearance hole 102 connected to the center of the ball-planting cavity 101, and a ball-scoring channel 103 connected to the edge of the ball-planting cavity 101.

[0072] The brush plate 2 is located inside the ball planting cavity 101 and directly below the clearance hole 102;

[0073] Quick-release component 3 is rotatably mounted at the clearance hole 102;

[0074] The quick-release assembly 3 has a clamping state in which it clamps and fixes the brush disk 2, causing the brush disk 2 to rotate with the quick-release assembly 3; and an opening state in which it releases the brush disk 2.

[0075] The quick-change ball-planting head provided in this embodiment works by the following four key steps, significantly improving the uniformity of large-size solder balls by replacing the traditional air-blowing method with mechanical sweeping:

[0076] 1. Solder ball introduction stage

[0077] The solder ball enters the ball-planting cavity 101 through the ball-planting channel 103, and then slides down through the gap between the brush plate 2 and the ball-planting cavity 101 to the bottom of the brush plate 2.

[0078] 2. Dynamic sweeping of the brush disc 2

[0079] When clamped, the quick-release assembly 3 rotates the brush disk 2, which in turn sweeps the solder balls evenly in all directions. The physical contact of the brush bristles overcomes the problem of large inertia of the solder balls, ensuring that each solder ball is evenly moved and ultimately presents a uniformly flat state.

[0080] 3. Quick Adaptation Process

[0081] When switching solder ball specifications, rotate the quick-release assembly 3 to the open clamping position, allowing the old brush disc 2 to be quickly removed. After replacing the brush disc 2 with one matching the new solder ball diameter, simply re-lock the clamping position to complete the adaptation. The entire process requires no tools for disassembly, significantly reducing downtime.

[0082] Therefore, the quick-change ball-planting head provided by this utility model can not only effectively solve the problem of uneven ball planting in existing ball-planting heads, but also quickly complete the installation, disassembly and replacement of the brush disc 2, thereby improving production efficiency.

[0083] Furthermore, welding balls exposed to air will be oxidized and damaged, while the ball placement chamber 101 can be vented with nitrogen or antistatic gas to prevent oxidation of the welding balls. Ventilation also allows for a certain gap between the quick-change ball placement head and the stencil template, preventing the welding balls from being cut in half during the ball placement process (in traditional ball placement processes, the ball placement head and the stencil template are in direct contact; during the stencil ball placement process, the welding balls are easily cut by the ball placement head before they completely fall into the opening of the stencil template, resulting in poor ball placement effect).

[0084] In this embodiment, the quick-release component 3 includes:

[0085] Rotary bushing 301, which is rotatably installed in the clearance hole 102;

[0086] An elastic gripper sleeve 302 is provided, with its lower end inserted into the rotating bushing 301 and its upper end extending out of the rotating bushing 301.

[0087] Flange plate 303, the flange plate 303 is fixed to the upper end of the elastic gripper sleeve 302;

[0088] A clamping spring 304 is sleeved on the rotating bushing 301 and located below the flange plate 303. The clamping spring 304 is used to drive the elastic gripper sleeve 302 to slide upward relative to the rotating bushing 301 through the flange plate 303, so that the lower end of the elastic gripper sleeve 302 is clamped by the resistance of the rotating bushing 301 to clamp the brush disk 2.

[0089] A lifting pressure plate 305 is located above the flange plate 303;

[0090] A clamping linear drive mechanism 306 is provided, the drive end of which is connected to the lifting pressure plate 305. The mechanism is used to drive the lifting pressure plate 305 to move downward so that the lower end of the elastic gripper sleeve 302 extends out of the rotating bushing 301 and releases the brush disc 2.

[0091] A rotary drive block 307 is located inside the lifting pressure plate 305 and is provided with a downwardly protruding limiting part 3071; correspondingly, the flange plate 303 is provided with a vertical slide groove 3031 that is slidably connected to the limiting part 3071.

[0092] A rotary drive mechanism 308 is provided, the drive end of which is fixedly connected to the rotary drive block 307, thereby driving the rotary drive block 307 to rotate.

[0093] Furthermore, the quick-change ball-planting head also includes a protective cover 4, and the rotary drive mechanism 308 is fixed to the top of the protective cover 4.

[0094] The protective cover 4 is fixed to the top of the ball assembly 1 and surrounds and protects the rotating bushing 301, the elastic gripper sleeve 302, the flange plate 303, and the clamping spring 304.

[0095] The clamping linear drive mechanism 306 is fixed to the outer side of the protective cover 4, and the lifting pressure plate 305 passes through the protective cover 4 and extends to the drive end of the clamping linear drive mechanism 306; wherein, the protective cover 4 is provided with a pressure plate clearance groove 401 for the lifting pressure plate 305 to move up and down.

[0096] In this embodiment, the lower end of the elastic gripper sleeve 302 is provided with a plurality of elastic clamping pieces 3021. Each elastic clamping piece 3021 is evenly distributed around the central axis of the elastic gripper sleeve 302 and has a gradually expanding structure towards the brush disk 2. Therefore, when the elastic gripper sleeve 302 moves downward, each elastic clamping piece 3021 opens, thereby releasing the brush disk 2.

[0097] Generally, the clamping spring 304 drives the flange plate 303 to move upward. At this time, the limiting part 3071 is inserted into the vertical slide groove 3031 to a greater depth. When the rotating drive block 307 is driven to rotate by the rotating drive mechanism 308, it will drive the flange plate 303 to rotate, and then drive the brush disk 2 to rotate through the elastic gripper sleeve 302, so as to achieve uniform brushing of the welding ball.

[0098] When the brush disc 2 needs to be replaced, the clamping linear drive mechanism 306 extends downward, overcoming the elastic effect of the clamping spring 304, and drives the flange plate 303 through the lifting pressure plate 305 to drive the elastic gripper sleeve 302 to slide downward relative to the rotating bushing 301 (during this process, the depth of the limiting part 3071 inserted into the vertical slide groove 3031 gradually decreases, but the limiting part 3071 will not completely disengage from the vertical slide groove 3031), until the lower end of the elastic gripper sleeve 302 extends to the outside of the rotating bushing 301. After losing the supporting effect of the rotating bushing 301, the elastic gripper sleeve 302 automatically restores its opening deformation, thereby releasing the brush disc 2;

[0099] After replacing the new brush disc 2, the clamping linear drive mechanism 306 retracts upward, and the clamping spring 304 drives the flange plate 303 to move upward. At this time, the limiting part 3071 returns to the position where it is inserted into the vertical slide groove 3031 to a deeper depth. Simultaneously, the lower end of the elastic gripper sleeve 302 retracts into the interior of the rotating bushing 301. Under the resistance of the rotating bushing 301, the lower end of the elastic gripper sleeve 302 automatically retracts and clamps the brush disc 2 again.

[0100] In this embodiment, the driving end of the rotary drive mechanism 308 is directly opposite to and inserted into the upper end of the elastic gripper sleeve 302;

[0101] The drive end of the rotary drive mechanism 308 and the central axis of the brush disk 2 are both provided with hollow structures that connect to the elastic gripper sleeve 302, so that the drive end of the rotary drive mechanism 308, the elastic gripper sleeve 302, and the brush disk 2 form a central air intake channel 309 that connects to the space directly below the brush disk 2.

[0102] While the brush disc 2 is used for brushing, air is drawn in through the central air intake channel 309 and blown downwards through the filter screen 5, which can further improve the uniformity of brushing.

[0103] Furthermore, a filter 5 is provided at the lower end of the central air inlet channel 309 to restrict welding balls from entering the central air inlet channel 309. Optionally, the filter 5 is 300 mesh.

[0104] In this embodiment, the filter 5 is disposed inside the brush disk 2 and is replaced along with the brush disk 2 to match different solder ball diameters. For example, a 300-mesh filter can prevent solder balls with a diameter of 100µm from overflowing. At the same time, different filters 5 can limit the air velocity at the outlet of the central air inlet channel 309, preventing the internal air velocity from being too fast or too slow.

[0105] Optionally, a bearing 6 is provided between the rotating bushing 301 and the clearance hole 102 to reduce frictional resistance during rotation and improve rotational smoothness.

[0106] In this embodiment, the ball-filling assembly 1 further includes an outer annular vent 104 surrounding the ball-filling cavity 101 and an outer air inlet channel 105 connected to the outer annular vent 104. Air enters through the outer air inlet channel 105 and is then blown out through the outer annular vent 104, thus keeping all the solder balls within the ball-filling cavity 101 and preventing them from escaping outward.

[0107] In summary, the quick-change ball-planting head provided in this embodiment has the following advantages:

[0108] ① Mechanical sweeping improves uniformity: The rotating sweeping of the brush disk 2 replaces the traditional air blowing method. The physical contact of the brush bristles overcomes the inertia of large-sized solder balls, ensuring that the solder balls are evenly spread and significantly reducing the risk of missing solder balls.

[0109] ② Quick-release component 3 for efficient replacement: The elastic gripper sleeve 302 is linked with the opening and clamping drive mechanism to achieve tool-free quick clamping / release of the brush disk 2, which is compatible with different specifications of welding balls, greatly shortens downtime and improves production efficiency.

[0110] ③ Self-locking stability of elastic grippers: Through the abutment of the elastic clamping piece 3021 and the rotating bushing 301, the brush disk 2 is automatically retracted and clamped in the clamping state to ensure the structure is stable during high-speed rotation and avoid loosening and displacement.

[0111] ④ Central air intake auxiliary positioning: Utilizing the hollow central air intake channel 309 in conjunction with the filter screen 5, air is blown downwards while sweeping, which helps to position the welding balls and prevents them from entering the channel, further improving the uniformity of the placement.

[0112] ⑤ Peripheral annular wind field constraint: The peripheral annular air outlet 104 and the air inlet channel form an enclosed wind field, which constrains the range of motion of the welding balls, prevents them from escaping, and ensures that all welding balls are concentrated in the ball planting cavity 101 and effectively swept.

[0113] It should be noted that the linear drive mechanism mentioned in this utility model can be a cylinder, hydraulic cylinder, electric cylinder, or motor lead screw linear module, etc., and the rotary drive mechanism mentioned can be a brushed motor, brushless motor, or rotary cylinder, etc. This utility model does not limit the specific structural form of the linear drive mechanism and the rotary drive mechanism.

[0114] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A quick-change ball-planting head, characterized in that, include: The ball-scoring assembly (1) is provided with a ball-planting cavity (101) with an opening facing downward, a clearance hole (102) connected to the center of the ball-planting cavity (101), and a ball-scoring channel (103) connected to the edge of the ball-planting cavity (101). The brush plate (2) is located inside the ball planting cavity (101) and directly below the clearance hole (102); Quick-release assembly (3), which is rotatably mounted at the clearance hole (102); The quick-release assembly (3) has a clamping state that clamps and fixes the brush disk (2) so that the brush disk (2) rotates with the quick-release assembly (3); and an opening state that releases the brush disk (2).

2. The quick-change ball-planting head according to claim 1, characterized in that, The quick-release assembly (3) includes: A rotating bushing (301) is rotatably mounted in the clearance hole (102); An elastic gripper sleeve (302) is provided, with its lower end inserted into the rotating bushing (301) and its upper end extending out of the rotating bushing (301). Flange plate (303), the flange plate (303) is fixed to the upper end of the elastic gripper sleeve (302); A clamping spring (304) is sleeved on the rotating bushing (301) and located below the flange plate (303). The clamping spring (304) is used to drive the elastic gripper sleeve (302) to slide upward relative to the rotating bushing (301) through the flange plate (303), so that the lower end of the elastic gripper sleeve (302) is clamped by the resistance of the rotating bushing (301) to clamp the brush disc (2). A lifting pressure plate (305) is located above the flange plate (303); A clamping linear drive mechanism (306) is provided, the drive end of which is connected to the lifting pressure plate (305) to drive the lifting pressure plate (305) to move downward so that the lower end of the elastic gripper sleeve (302) extends out of the rotating bushing (301) and releases the brush disc (2).

3. The quick-change ball-planting head according to claim 2, characterized in that, The quick-release assembly (3) also includes: A rotary drive block (307) is located inside the lifting pressure plate (305) and is provided with a downwardly protruding limiting part (3071). A rotary drive mechanism (308) is provided, the drive end of which is fixedly connected to the rotary drive block (307) to drive the rotary drive block (307) to rotate.

4. The quick-change ball-planting head according to claim 3, characterized in that, The flange plate (303) is provided with a vertical slide groove (3031) that is slidably connected to the limiting part (3071) in the upper and lower directions.

5. The quick-change ball-planting head according to claim 3, characterized in that, The drive end of the rotary drive mechanism (308) is directly opposite to and inserted into the upper end of the elastic gripper sleeve (302); The drive end of the rotary drive mechanism (308) and the central axis of the brush disk (2) are both provided with hollow structures that connect to the elastic gripper sleeve (302), so that the drive end of the rotary drive mechanism (308), the elastic gripper sleeve (302), and the brush disk (2) form a central air intake channel (309) that connects to the space directly below the brush disk (2).

6. The quick-change ball-planting head according to claim 5, characterized in that, A filter (5) is provided at the lower end of the central air intake channel (309) to restrict the entry of welding balls into the central air intake channel (309).

7. The quick-change ball-planting head according to claim 3, characterized in that, It also includes a protective shield (4); The protective cover (4) is fixed to the top of the ball assembly (1) and surrounds and protects the rotating bushing (301), the elastic gripper sleeve (302), the flange plate (303), and the clamping spring (304). The clamping linear drive mechanism (306) is fixed to the outer side of the protective cover (4), and the lifting pressure plate (305) passes through the protective cover (4) and extends to the drive end of the clamping linear drive mechanism (306); wherein, the protective cover (4) is provided with a pressure plate clearance groove (401) for the lifting pressure plate (305) to move up and down. The rotary drive mechanism (308) is fixed to the top of the protective cover (4).

8. The quick-change ball-planting head according to claim 2, characterized in that, A bearing (6) is provided between the rotating bushing (301) and the clearance hole (102).

9. The quick-change ball-planting head according to claim 2, characterized in that, The lower end of the elastic gripper sleeve (302) is provided with a plurality of elastic clips (3021), each of the elastic clips (3021) being evenly distributed around the central axis of the elastic gripper sleeve (302) and having a gradually expanding structure toward the brush disk (2).

10. The quick-change ball-planting head according to claim 1, characterized in that, The ball-planting assembly (1) also includes an outer annular vent (104) surrounding the ball-planting cavity (101) and an outer air intake channel (105) connected to the outer annular vent (104).

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