Ball removing device

Abstract

The utility model relates to the technical field of packaging body manufacturing, in particular to a ball removing device which comprises a base, a scraper, a fixing plate and a clamping assembly, the edge of the scraper is flush with the top face of the base and can slide horizontally, the fixing plate is used for placing a packaging body, and the clamping assembly is used for clamping the packaging body. An installation groove is formed in the top face of the base, the fixing plate can be vertically arranged in the installation groove in a sliding mode so that the upper substrate face of the packaging body can be moved to be flush with the top face of the base, and the clamping assembly is used for clamping and fixing the packaging body from the side portion and is configured to be adjustable in clamping range. The fixing plate is arranged to vertically slide, and the clamping range of the clamping assembly is adjustable, so that the ball removing device can be suitable for removing balls of packaging bodies of different specifications and sizes. Meanwhile, the whole operation process is relatively simple, so that the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of package manufacturing, and in particular to a ball removal device. Background Technology

[0002] In the field of electronics manufacturing, especially in the process of package manufacturing, metal balls, commonly known as solder balls, are typically implanted into the substrate surface of the package to achieve electrical connections. This is seen in processes such as FC (Fluid Cell) or WB (Wastewater Brace) package manufacturing. However, these solder balls can become obstacles in subsequent manufacturing and testing processes; therefore, removing the solder balls from the substrate surface is a crucial step in the package manufacturing process.

[0003] Existing technologies generally employ physical or chemical methods to remove ball-mounted components from the substrate surface. Chemical methods use chemical agents to dissolve the components. However, chemical ball removal can corrode the substrate, affecting the surface warpage of the package and leading to distorted measurement results. Furthermore, chemical ball removal generates harmful chemical waste, causing environmental pollution. Therefore, physical methods, such as ball removal machines, are primarily used to remove ball-mounted components using cutting tools. A ball removal machine is a specially designed device that removes ball-mounted components using mechanical force.

[0004] However, during the process of removing balls using a ball remover, for packages of different sizes, the common package is a rectangular plate structure. The ball remover needs to be changed and matched with different fixtures, which leads to cumbersome operation and low efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a ball removal device to solve the problem that when using a ball removal machine for physical ball removal in the prior art, different fixtures need to be changed for different sizes of packaged bodies, which leads to cumbersome operation and low efficiency.

[0006] To achieve the above and other related objectives, this utility model provides a ball removal device, which includes a base, a scraper, a fixing plate, and a clamping assembly. The blade of the scraper is flush with the top surface of the base and is configured to slide horizontally. The fixing plate is used to place the package. The top surface of the base has a mounting groove, and the fixing plate can be vertically slidably disposed in the mounting groove to move the upper substrate surface of the package to be flush with the top surface of the base. The clamping assembly is used to clamp and fix the package from the side and is configured to have an adjustable clamping range.

[0007] Optionally, the scraper includes a blade holder and a blade, the blade being obliquely mounted on the blade holder, and the blade holder having symmetrically formed mating grooves on both sides, the blade holder being horizontally slidably fitted onto the top side of the base through the mating grooves.

[0008] Optionally, the bottom surface of the base is vertically provided with a threaded hole that extends through the mounting groove. An adjusting screw is threaded into the threaded hole, with one end of the adjusting screw extending into the mounting groove and the other end located in the threaded hole. A countersunk hole is provided at the end of the adjusting screw away from the mounting groove, and the countersunk hole is used to cooperate with an external tool to rotate the adjusting screw.

[0009] Optionally, an anti-wear pad is fixedly provided at one end of the adjusting screw that extends into the mounting groove, and the adjusting bolt contacts the fixing plate through the anti-wear pad.

[0010] Optionally, the clamping assembly includes two clamping members and a driving assembly. The clamping members can slide and engage with the top of the fixing block along the length and width directions of the package, respectively. The driving assembly is used to drive the clamping members to slide.

[0011] Optionally, the driving assembly includes two driving screws rotatably mounted on the base and sliders threadedly connected to the two driving screws respectively. The length direction of the two driving screws is consistent with the length direction and width direction of the package body, respectively. The two clamping members are fixedly connected to the two sliders respectively. The fixing plate and the base are both provided with sliding grooves for the clamping members and the sliders to slide. One end of the driving screw extends out of the base and is provided with a countersunk hole. The countersunk hole is used to cooperate with an external tool to rotate the driving screw.

[0012] Optionally, the base is provided with a bearing seat, and both ends of the two drive screws are rotatably connected to the base through the bearing seat.

[0013] Optionally, the clamping member includes a fixing head and a connecting rod. The fixing head is used to clamp the package body, and one end of the connecting rod is fixedly connected to the fixing head, while the other end passes through the slide groove and is fixedly connected to the slider.

[0014] Optionally, the side of the fixing head near the package body is provided as an inclined surface, and the inclined surface is inclined upward from the top surface of the fixing plate toward the side near the package body.

[0015] The beneficial effects of this utility model are as follows:

[0016] When ball removal is required on the package, place the package on the upper surface of the fixing plate with the ball-bearing substrate facing upwards as the upper substrate surface. Then, adjust the fixing plate vertically according to the package thickness so that the upper substrate surface of the package is flush with the top surface of the base. At this point, the balls on the upper substrate surface are higher than the top surface of the base. Next, adjust the clamping range of the clamping assembly according to the length and width of the package to secure the package to the fixing plate. Then, slide the scraper horizontally. Since the scraper blade is flush with the top surface of the base, and the balls on the upper substrate surface are higher than the top surface of the base, the scraper will remove the balls from the upper substrate surface as it moves across the package, thus achieving ball removal from the package substrate surface. To ensure the accuracy of ball removal, check the ball removal status of the package. For any remaining balls, a secondary finishing process can be performed by adjusting the height of the fixing plate to avoid affecting subsequent thermal warpage measurements. By designing the fixing plate to slide vertically and adjusting the clamping range of the clamping components, it can be adapted to encapsulated objects of different sizes, including those of varying lengths, widths, and heights, excluding balls. Furthermore, the entire operation is relatively simple, thus improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a ball removal device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the base in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the inclined surface of the fixing head in one embodiment of the present invention. Detailed Implementation

[0020] The following reference Figures 1 to 3 This invention describes a ball-removing device. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0021] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] like Figures 1-3 As shown, this embodiment of the present invention provides a ball removal device, which includes a base 1, a scraper 3, a fixing plate 2, and a clamping assembly. The blade of the scraper 3 is flush with the top surface of the base 1 and is configured to slide horizontally. The fixing plate 2 is used to place the package 8. The top surface of the base 1 has a mounting groove 11, and the fixing plate 2 can be vertically slidably disposed in the mounting groove 11 to move the upper substrate surface of the package 8 to be flush with the top surface of the base 1. The clamping assembly is used to clamp and fix the package 8 from the side and is configured to have an adjustable clamping range.

[0025] When ball removal is required on package 8, package 8 is placed on the upper surface of fixing plate 2 with the ball-bearing substrate facing upwards as the upper substrate surface. Then, according to the thickness of package 8, fixing plate 2 is vertically adjusted so that the upper substrate surface of package 8 is flush with the top surface of base 1. At this point, the balls on the upper substrate surface are higher than the top surface of base 1. Next, the clamping range of the clamping assembly is adjusted according to the length and width of package 8, so that package 8 is clamped and fixed on fixing plate 2. Then, the scraper 3 is slid horizontally. Since the blade of scraper 3 is flush with the top surface of base 1, and the balls on the upper substrate surface are higher than the top surface of base 1, the scraper 3 will scrape off the balls on the upper substrate surface when it moves past package 8, thus achieving the purpose of ball removal from the substrate surface of package 8. To ensure the accuracy of ball removal, the ball removal status of package 8 is checked. For any remaining parts, a secondary finishing process can be performed by adjusting the height of fixing plate 2 to avoid affecting subsequent thermal warpage measurements. By configuring the fixing plate 2 to slide vertically and adjusting the clamping range of the clamping assembly, it can be adapted to encapsulated bodies 8 of different sizes, i.e., different lengths, widths, and heights, excluding balls. At the same time, the entire operation process is relatively simple, thereby improving work efficiency.

[0026] In some embodiments of this utility model, the scraper 3 includes a blade holder 31 and a blade 32. The blade 32 is obliquely disposed on the blade holder 31. The blade holder 31 has symmetrically provided mating grooves 311 on both sides, and the blade holder 31 is horizontally slidably fitted onto the top side of the base 1 through the mating grooves 311. Optionally, the blade 32 is made of cemented carbide.

[0027] When it is necessary to remove the ball attachments, push the blade holder 31 along the base 1. The blade holder 31 will move the blade 32 along with it. When passing the package 8, the blade 32 will remove the ball attachments from the substrate surface of the package 8. By setting the blade holder 31, it is possible to prevent workers from being injured when pushing and scraping, which is safer. At the same time, the blade 32 is set at an angle and can only slide horizontally, which can effectively avoid the blade 32 damaging the substrate surface during the ball removal process.

[0028] In some alternative embodiments of this utility model, the scraper 3 may be provided with a separate support frame. The scraper 3 is horizontally slidably mounted on the support frame and the blade of the scraper 3 is flush with the top surface of the base 1. Alternatively, the height of the blade of the scraper 3 can be set to be adjustable, so that the blade of the scraper 3 is flush with the top surface of the base 1 when removing balls.

[0029] In some embodiments of this utility model, a threaded hole 12 is vertically formed on the bottom surface of the base 1, extending through to the mounting groove 11. An adjusting screw 5 is internally threaded into the threaded hole 12, with one end of the adjusting screw 5 extending into the mounting groove 11 and the other end positioned within the threaded hole 12. A countersunk hole 6 is formed at the end of the adjusting screw 5 furthest from the mounting groove 11, for use with an external tool to rotate the adjusting screw 5. Optionally, the countersunk hole 6 can be an internal hexagonal socket or a cross-shaped hole.

[0030] An external tool, such as a hex wrench, is inserted into the countersunk hole 6, allowing the adjusting screw 5 to be rotated. As the adjusting screw 5 rotates, it moves along the length of the threaded hole 12. With the movement of the adjusting screw 5, the fixing plate 2 can be lifted or lowered under its own weight, thus achieving height adjustment of the fixing plate 2. The structure is simple and easy to operate. Simultaneously, after the fixing plate 2 is lifted and fixed, the adjusting screw 5 provides support for the fixing plate 2. Furthermore, the adjusting screw 5 is completely within the base 1, making the base 1 more stable.

[0031] In some other embodiments of this invention, a countersunk hole can be formed on the bottom surface of the base, with a threaded hole passing through the countersunk hole and the mounting groove, and a countersunk bolt threaded into the threaded hole. The end of the countersunk bolt can be placed inside the countersunk hole, which also allows for adjustment of the height of the fixing plate and ensures the stability of the base.

[0032] Furthermore, an anti-wear pad 51 is fixedly provided at one end of the adjusting screw 5 that extends into the mounting groove 11, and the adjusting screw contacts the fixing plate 2 through the anti-wear pad 51. By providing the anti-wear pad 51, the anti-wear pad 51 plays a protective role when the adjusting screw is rotated, reducing the wear between the adjusting screw 5 and the fixing plate 2.

[0033] In some embodiments of this invention, the clamping assembly includes two clamping members 41 and a driving assembly 42. The two clamping members 41 are slidably engaged with the top of the fixing block along the length and width directions of the encapsulation body 8, respectively. The driving assembly 42 is used to drive the clamping members 41 to slide. Optionally, multiple clamping members 41 may also be provided.

[0034] After the package 8 is placed on the fixing plate 2, the two adjacent sides of the package 8 abut against the side wall of the mounting groove 11. Then, the two clamping members 41 are driven by the driving assembly 42 to slide along the length and width directions of the package 8, respectively, so that the two clamping members 41 abut against the other two adjacent sides of the package 8, thereby clamping and fixing the package 8 between the side wall of the mounting groove 11 and the clamping members 41.

[0035] In some embodiments of this utility model, the drive assembly 42 includes two drive screws 421 rotatably mounted on the base 1 and sliders 422 threadedly connected to the two drive screws 421 respectively. The length direction of the two drive screws 421 is consistent with the length direction and width direction of the package body 8 respectively. Two clamping members 41 are fixedly connected to the two sliders 422 respectively. Both the fixing plate 2 and the base 1 are provided with grooves 21 for sliding of the clamping members 41 and sliders 422. One end of the drive screw 421 extends out of the base 1 and is provided with a countersunk hole 6, which is used to cooperate with an external tool to rotate the drive screw 421.

[0036] By rotating the drive screw 421 using an external tool, the slider 422 on the drive screw 421 moves along the length of the drive screw 421 within the slide groove 21. The movement of the slider 422 then drives the clamping member 41 to move along the slide groove 21, thereby adjusting the size of the area between the two clamping members 41 and the side wall of the mounting groove 11 according to the size of the clamping member 41. The structure is simple and the operation is convenient.

[0037] Of course, a motor can also be used to drive the screw to rotate.

[0038] Furthermore, the base 1 is provided with bearing seats 7, and optionally, four bearing seats 7 are provided. Both ends of the two drive screws 421 are rotatably connected to the base 1 through the bearing seats 7. By providing bearing seats 7, the rotation of the drive screws 421 is made more stable.

[0039] In some embodiments of this utility model, the clamping member 41 includes a fixing head 411 and a connecting rod 412. The fixing head 411 is used to clamp the package body 8, and one end of the connecting rod 412 is fixedly connected to the fixing head 411, while the other end passes through the slide groove 21 and is fixedly connected to the slider 422. The movement of the clamping member 41 is that the connecting rod 412 moves along the slide groove 21, causing the fixing head 411 to abut against the side wall of the package body 8.

[0040] Furthermore, the fixing head 411 is configured with an inclined surface 9 on the side near the package 8, and the inclined surface 9 slopes upward from the top of the fixing plate toward the side near the package 8. By setting the inclined surface 9, the package 8 can be prevented from tilting upward under force when the ball is removed by the scraper 3, thus avoiding damage to the substrate surface of the package 8 during the ball removal process. Optionally, the inclination angle of the inclined surface 9 is 5°.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A ball removal device characterized by, The device comprises a base, a scraper, a fixed plate and a clamping assembly. The scraper is horizontally slidable and flush with the top surface of the base. The fixed plate is used to place the package. The top surface of the base is provided with a mounting groove. The fixed plate is vertically slidable in the mounting groove to move the upper substrate surface of the package to be flush with the top surface of the base. The clamping assembly is used to clamp the package from the side and is adjustable in clamping range.

2. The ball removal device of claim 1, wherein The scraper comprises a scraper holder and a scraper blade. The scraper blade is obliquely installed on the scraper holder. The two sides of the scraper holder are symmetrically provided with matching grooves. The scraper holder is horizontally slidable in the matching grooves on the side edges of the top surface of the base.

3. The ball removal device of claim 1, wherein The bottom surface of the base is vertically provided with a threaded hole. The threaded hole penetrates into the mounting groove. An adjusting screw is threadedly connected in the threaded hole. One end of the adjusting screw extends into the mounting groove and the other end is in the threaded hole. The end of the adjusting screw away from the mounting groove is provided with a countersunk hole. The countersunk hole is used to cooperate with an external tool to rotate the adjusting screw.

4. The ball removal device of claim 3, wherein The end of the adjusting screw extending into the mounting groove is fixedly provided with an anti-wear pad. The adjusting screw is in contact with the fixed plate through the anti-wear pad.

5. The ball removal device of claim 1, wherein The clamping assembly comprises two clamping pieces and a driving assembly. The clamping pieces are respectively slidably fitted on the top of the fixed plate along the length direction and the width direction of the package. The driving assembly is used to drive the clamping pieces to slide.

6. The ball removal device of claim 5, wherein The driving assembly comprises two driving screws rotatably provided on the base and two sliders respectively threadedly connected on the two driving screws. The length directions of the two driving screws are respectively consistent with the length direction and the width direction of the package. The two clamping pieces are respectively fixedly connected on the two sliders. The fixed plate and the base are both provided with sliding grooves for the clamping pieces and the sliders to slide. One end of the driving screw extends out of the base and is provided with a countersunk hole. The countersunk hole is used to cooperate with an external tool to rotate the driving screw.

7. The ball removal device of claim 6, wherein The base is provided with a bearing seat. The two ends of the two driving screws are rotatably connected on the base through the bearing seat.

8. The ball removal device of claim 6, wherein The clamping piece comprises a fixed head and a connecting rod. The fixed head is used to clamp the package. One end of the connecting rod is fixedly connected with the fixed head and the other end is fixedly connected with the slider through the sliding groove.

9. The ball removing device according to claim 8, characterized in that The side close to the package of the fixed head is provided with an inclined surface. The inclined surface is upwardly inclined from the top surface of the fixed plate towards the side close to the package.

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