A 3C product precision micro metal part surface polishing equipment

Abstract

The utility model relates to the field of polishing equipment, concretely relates to a 3C product precision miniature metal spare part surface polishing equipment, include: centrifugal polishing machine body and locate its centrifugal barrel, fixed in the spindle of centrifugal barrel, the motor in the centrifugal polishing machine body inside is connected to the spindle, the equipment still include the placing frame of several layers of sleeve setting on the spindle, each layer placing frame includes the bottom plate and the connecting ring fixed in the middle part of bottom plate, the connecting ring sliding sleeve joint is established on the spindle, the bottom plate outer wall overlaps the inner wall of centrifugal barrel. The utility model discloses through the setting of centrifugal barrel, bottom plate and baffle etc. part, through setting the placing frame of stackable, and through the baffle, each placing frame is separated into multiple independent placing space, avoids the traditional centrifugal polishing equipment usually together polishing the part, leads to the scratch of mutual impact of metal spare part even deformation.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment, and in particular to a surface polishing equipment for precision micro metal parts of 3C products. Background Technology

[0002] As 3C electronic products develop towards miniaturization and high precision, the surface polishing quality of their internal precision metal components (such as connector contacts, miniature bearings, and shielding covers) directly affects the product's conductivity, wear resistance, and sealing performance. Centrifugal polishing is the mainstream surface treatment process for such miniature parts, but traditional equipment has the following significant drawbacks; Existing equipment typically throws a large number of parts into a single-layer polishing drum in a disordered manner. Under high-speed centrifugal force, the parts collide violently with each other, resulting in scratches, deformation, and even structural damage on the surface, thus reducing the yield rate. In addition, the traditional placement basket has a fixed partition structure, which cannot accommodate parts of different sizes. When polishing small parts, the excessive placement space will aggravate the "splashing" collision of parts, further affecting the polishing quality. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a surface polishing device for precision micro metal parts of 3C products, so as to solve the technical problems in the prior art.

[0004] To achieve the above objectives, this utility model provides a surface polishing device for precision micro metal parts of 3C products, comprising: a centrifugal polishing machine body and a centrifugal drum disposed thereon; A rotating shaft fixed to the centrifuge drum, the rotating shaft being connected to a motor inside the centrifugal polishing machine body, the equipment further includes: Several layers of placement frames are fitted onto the rotating shaft. Each layer of placement frame includes a base plate and a connecting ring fixed in the middle of the base plate. The connecting ring is slidably fitted onto the rotating shaft. The outer wall of the base plate overlaps the inner wall of the centrifuge tank. Several partitions are fixed at equal intervals along the circumference of the bottom plate. The tops of adjacent partitions overlap with the bottom of the bottom plate, and the outer ends of the partitions overlap with the inner wall of the centrifuge barrel, so that the adjacent partitions form independent placement spaces. A detachable cover is installed on the top of the centrifugal polishing machine body, and the cover has a gap between it and the top of the uppermost partition.

[0005] Preferably, at least one vertical keyway is formed on the side wall of the rotating shaft, and a key block that slides with the keyway is fixed to the inner wall of the connecting ring.

[0006] Preferably, both the base plate and the partition plate have equidistant arrays of perforations on their surfaces.

[0007] Preferably, the device further includes: An adjustment plate is provided on one side of the partition, and the bottom of the adjustment plate is slidably mounted on the adjacent base plate; A telescopic plate is connected to the adjustment plate. The telescopic plate is erected on the other side of the corresponding partition. The telescopic plate has a cavity and a first spring inside. The two ends of the first spring are respectively fixed to the inner wall of the cavity and the end of the adjustment plate. Rotate the adjusting bolt mounted on the adjusting plate. The adjusting bolt has a positioning block threaded on its surface, and the bottom of the positioning block is fixed to the base plate.

[0008] Preferably, the adjusting plate and the telescopic plate are arc-shaped structures, and the surface of the adjusting plate is provided with an arc-shaped guide groove that slides with the telescopic plate.

[0009] Preferably, the adjusting bolt is rotatably connected to the adjusting plate via a bearing, the inner ring of the bearing fixes the adjusting bolt, and the outer ring of the bearing fixes the adjusting plate.

[0010] Preferably, the end of the adjusting bolt is fixed to a rotating handwheel, and the surface of the rotating handwheel has multiple grooves along its circumference.

[0011] Preferably, the device further includes: A sliding groove is formed on the side wall of the connecting ring. A guide rod is fixedly connected inside the sliding groove, and a limiting rod is slidably sleeved on the guide rod. A groove for a rotating handwheel can be embedded in the guide rod. A second spring is sleeved on the surface of the guide rod. One end of the second spring is fixed to the surface of the limiting rod, and the other end of the second spring is fixed to the bottom wall of the sliding groove.

[0012] The beneficial effects of this utility model are as follows: The surface polishing equipment for precision micro metal parts of 3C products using this utility model, through the setting of components such as centrifugal barrel, base plate and partition, and by setting stackable placement frames and dividing each placement frame into multiple independent placement spaces by partitions, avoids the problem that traditional centrifugal polishing equipment usually polishes parts together, which causes metal parts to collide with each other and produce scratches or even deformation. By incorporating components such as adjustment plates, telescopic plates, and limit rods, the placement space can be adjusted according to the size of the precision micro-metal parts in 3C products. This avoids the situation where the placement space is fixed in size, and if the precision micro-metal parts in 3C products are too small, they may collide and cause wear during centrifugal polishing. Furthermore, the adjustment bolts can be locked to ensure spatial stability during centrifugal vibration and prevent damage to the parts due to chamber deformation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the main cross-section of the present invention; Figure 3 This is a partial structural cross-sectional view of the centrifuge tank, bottom plate, and adjusting plate of this utility model. Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is a top-section schematic diagram of the main partial structure of the adjusting plate, the first spring, and the telescopic plate of this utility model.

[0015] The diagram is marked as follows: 1. Centrifugal polishing machine body; 2. Centrifuge tank; 3. Base plate; 4. Partition plate; 5. Cover; 6. Connecting ring; 7. Rotating shaft; 701. Keyway; 8. Adjusting plate; 801. First spring; 9. Telescopic plate; 10. Adjusting bolt; 11. Positioning block; 12. Rotating handwheel; 13. Slide groove; 14. Guide rod; 15. Limiting rod; 16. Second spring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] The first aspect of this utility model proposes a surface polishing device for precision micro-metal parts of 3C products, such as... Figure 1-5 As shown, it includes: a centrifugal polishing machine body 1 and a centrifugal drum 2 disposed thereon; A rotating shaft 7 is fixed to the centrifuge tank 2 and connected to a motor inside the centrifugal polishing machine body 1. The equipment also includes: Several layers of placement frames are fitted on the rotating shaft 7. Each layer of placement frame includes a base plate 3 and a connecting ring 6 fixed in the middle of the base plate 3. The connecting ring 6 is slidably fitted on the rotating shaft 7. The outer wall of the base plate 3 overlaps with the inner wall of the centrifuge tank 2. Several partitions 4 are fixed at equal intervals along the circumference of the base plate 3. The tops of adjacent partitions 4 overlap with the bottom of the base plate 3, and the outer ends of the partitions 4 overlap with the inner wall of the centrifuge tank 2, so that the adjacent partitions 4 form independent placement spaces. It should be noted that the number of partitions 4 is not less than two. A detachable cover 5 is installed on the top of the centrifugal polishing machine body 1, with a gap between the cover 5 and the top of the uppermost partition 4. It should be noted that the cover 5 is detachably installed on both sides of the top of the centrifugal polishing machine body 1 using bolts, and the gap design prevents the cover 5 from abutting against the top of the uppermost partition 4, thus avoiding interference with the rotation of the centrifugal drum 2. Furthermore, to improve the stability of the placement frame, ball bearings can be rotatably installed on the top of the uppermost partition 4, with the ball bearings contacting the bottom of the cover 5 to reduce friction between them and ensure stable rotation of the placement frame. This technology is existing and will not be elaborated further. In the process of polishing the surface of precision micro metal parts of 3C products using centrifugal polishing equipment, stackable placement frames are set up and each placement frame is divided into multiple independent placement spaces by partition 4. This avoids the common practice in traditional centrifugal polishing equipment of polishing parts together, which can cause metal parts to collide with each other and cause scratches or even deformation. In addition, the cover 5 is detachably installed on the top of the centrifugal polishing machine body 1 by bolts. In the opening and closing of the cover 5, only a few bolts need to be loosened, which greatly shortens the working time and improves efficiency.

[0019] In this embodiment, at least one vertical keyway 701 is formed on the side wall of the rotating shaft 7, and a key block that slides in cooperation with the keyway 701 is fixed on the inner wall of the connecting ring 6. It should be noted that the keyways 701 can be symmetrically formed on the side wall of the rotating shaft 7, which can further improve stability. Through the sliding cooperation between the key block on the inner wall of the connecting ring 6 and the keyway 701 on the side wall of the rotating shaft 7, the base plate 3 fixed to the connecting ring 6 can be driven to rotate during the rotation of the rotating shaft 7, causing the centrifuge tank 2 to rotate the precision micro-metal components of the 3C product.

[0020] In this embodiment, both the base plate 3 and the partition plate 4 have equidistant arrays of perforations on their surfaces. These perforations allow the grinding liquid medium to pass through, facilitating its flow.

[0021] In this embodiment, the device further includes: An adjusting plate 8 is provided on one side of the partition 4, and the bottom of the adjusting plate 8 is slidably mounted on the adjacent base plate 3; The telescopic plate 9 is connected to the adjustment plate 8. The telescopic plate 9 is placed on the other side of the corresponding partition 4. The telescopic plate 9 has a cavity and a first spring 801 inside. The two ends of the first spring 801 are fixed to the inner wall of the cavity and the end of the adjustment plate 8, respectively. The adjusting bolt 10 is rotatably mounted on the adjusting plate 8. The adjusting bolt 10 has a threaded mounting block 11 on its surface, and the bottom of the positioning block 11 is fixed on the base plate 3.

[0022] When it is necessary to adjust the size of the placement space according to the size of the precision micro metal parts of 3C products, the size of the placement space can be changed by rotating the adjusting bolt 10, which pushes the adjusting plate 8 at the upper end of the adjusting bolt 10 to move horizontally on the base plate 3, thereby avoiding the situation of small parts "splashing" in a fixed large space.

[0023] In this embodiment, the adjusting plate 8 and the telescopic plate 9 are arc-shaped structures, and an arc-shaped guide groove is formed on the surface of the adjusting plate 8 to slide with the telescopic plate 9. By setting the arc-shaped guide groove, the smoothness of the movement of the telescopic plate 9 is ensured when the adjusting plate 8 moves and causes the telescopic plate 9 to move and extend on one end of the adjusting plate 8.

[0024] In this embodiment, the adjusting bolt 10 is rotatably connected to the adjusting plate 8 via a bearing. The inner ring of the bearing fixes the adjusting bolt 10, and the outer ring of the bearing fixes the adjusting plate 8. The bearing arrangement allows the adjusting bolt 10 to rotate freely inside the adjusting plate 8. When the adjusting bolt 10 screws in and out of the positioning block 11, it drives the adjusting plate 8 to slide on the surface of the base plate 3, thereby changing the size of the placement space. This allows for adjustment of the placement space according to the size of the precision micro-metal parts for 3C products, avoiding a fixed placement space. If the precision micro-metal parts for 3C products are too small, they may collide and cause wear during centrifugal polishing.

[0025] In this embodiment: a rotating handwheel 12 is fixed to the end of the adjusting bolt 10, and multiple grooves are formed along the circumference of the surface of the rotating handwheel 12. It should be noted that the grooves facilitate the rotation of the adjusting bolt 10.

[0026] In this embodiment, the device further includes: A slide groove 13 is formed on the side wall of the connecting ring 6. A guide rod 14 is fixedly connected inside the slide groove 13, and a limiting rod 15 is slidably sleeved on the guide rod 14. The upper part of the limiting rod 15 can be embedded in the groove of the rotating handwheel 12. A second spring 16 is sleeved on the surface of the guide rod 14. One end of the second spring 16 is fixed to the surface of the limiting rod 15, and the other end of the second spring 16 is fixed to the bottom wall of the slide groove 13.

[0027] In addition, another function of the groove is that, when the adjusting bolt 10 is not rotated, the second spring 16 will push the limiting rod 15 to move upwards in the slide groove 13, so that the upper part of the limiting rod 15 is embedded in the groove of the rotating handwheel 12, thereby locking the adjusting bolt 10, ensuring spatial stability during centrifugal vibration, and preventing parts from being damaged due to chamber deformation.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0029] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A surface polishing device for precision micro-metal parts of 3C products, comprising: Centrifugal polishing machine body (1) and centrifugal drum (2) mounted thereon; A rotating shaft (7) fixed to the centrifuge drum (2), the rotating shaft (7) being connected to a motor inside the centrifugal polishing machine body (1), characterized in that the device further includes: Several layers of placement frames are fitted on the rotating shaft (7). Each layer of placement frame includes a base plate (3) and a connecting ring (6) fixed in the middle of the base plate (3). The connecting ring (6) is slidably fitted on the rotating shaft (7). The outer wall of the base plate (3) overlaps the inner wall of the centrifuge barrel (2). Several partitions (4) are fixed at equal intervals along the circumference of the bottom plate (3). The top of the adjacent partitions (4) overlaps with the bottom of the bottom plate (3), and the outer end of the partitions (4) overlaps with the inner wall of the centrifuge (2), so that the adjacent partitions (4) form an independent placement space. A cover (5) is detachably installed on the top of the centrifugal polishing machine body (1), and the cover (5) has a gap between it and the top of the uppermost partition (4).

2. The surface polishing equipment for precision micro metal parts of 3C products according to claim 1, characterized in that, At least one vertical keyway (701) is provided on the side wall of the rotating shaft (7), and a key block that slides in cooperation with the keyway (701) is fixed on the inner wall of the connecting ring (6).

3. The surface polishing equipment for precision micro metal parts of 3C products according to claim 1, characterized in that, Both the base plate (3) and the partition plate (4) have equidistant arrays of perforations on their surfaces.

4. The surface polishing equipment for precision micro metal parts of 3C products according to claim 1, characterized in that, The device also includes: An adjustment plate (8) is provided on one side of the partition (4), and the bottom of the adjustment plate (8) is slidably mounted on the adjacent base plate (3); The telescopic plate (9) is connected to the adjustment plate (8). The telescopic plate (9) is erected on the other side of the corresponding partition (4). The telescopic plate (9) has a cavity and a first spring (801) inside. The two ends of the first spring (801) are fixed to the inner wall of the cavity and the end of the adjustment plate (8), respectively. Rotate the adjusting bolt (10) mounted on the adjusting plate (8). The adjusting bolt (10) has a positioning block (11) threaded on its surface, and the bottom of the positioning block (11) is fixed on the base plate (3).

5. The surface polishing equipment for precision micro metal parts of 3C products according to claim 4, characterized in that, The adjusting plate (8) and the telescopic plate (9) are arc-shaped structures, and the surface of the adjusting plate (8) is provided with an arc-shaped guide groove that slides with the telescopic plate (9).

6. The surface polishing equipment for precision micro metal parts of 3C products according to claim 4, characterized in that, The adjusting bolt (10) is rotatably connected to the adjusting plate (8) via a bearing. The inner ring of the bearing fixes the adjusting bolt (10), and the outer ring of the bearing fixes the adjusting plate (8).

7. The surface polishing equipment for precision micro metal parts of 3C products according to claim 6, characterized in that, The adjusting bolt (10) has a rotating handwheel (12) fixed at its end, and the rotating handwheel (12) has multiple grooves along its circumference on its surface.

8. The surface polishing equipment for precision micro metal parts of 3C products according to claim 7, characterized in that, The device also includes: A groove (13) is formed on the side wall of the connecting ring (6). A guide rod (14) is fixedly connected inside the groove (13), and a limiting rod (15) is slidably sleeved on the guide rod (14). The upper part of the limiting rod (15) can be embedded in the groove of the rotating handwheel (12). A second spring (16) is sleeved on the surface of the guide rod (14). One end of the second spring (16) is fixed to the surface of the limiting rod (15), and the other end of the second spring (16) is fixed to the bottom wall of the groove (13).

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