Hanging rack for improving electroplating uniformity

Abstract

The invention relates to the technical field of workpiece machining, and particularly discloses a hanger for improving electroplating uniformity, which comprises a device main body and a multi-surface spraying mechanism, the multi-face spraying mechanism is arranged in the device body and used for linkage rotation. The multi-face spraying mechanism comprises a driving piece, and one end of the driving piece is in transmission connection with a first folding rod. The anti-falling mechanism is arranged at the lower end of the multi-face spraying mechanism and used for fixing a workpiece, the anti-falling mechanism comprises a connecting piece, and the lower end of the connecting piece is connected with a hook; the multi-surface spraying mechanism is installed in the device body, the effect of improving electroplating uniformity is achieved, meanwhile, the anti-falling mechanism is arranged at the lower end of the multi-surface spraying mechanism, and the function of improving functionality is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of workpiece processing, and particularly relates to a hanger for improving electroplating uniformity. Background Art

[0002] The hanger for electroplating is an indispensable tool in the electroplating process. It is mainly used for hanging and loading the workpieces to be electroplated and ensuring uniform conduction of the cathode current to the surface of the workpieces. The electroplating hanger is a specially designed auxiliary equipment for the electroplating process. Its core function is to hang and load the workpieces to be electroplated, and at the same time, as a medium for current conduction, it enables the cathode current to be evenly distributed on the surface of the workpieces, thereby ensuring the quality and uniformity of the electroplating layer. The hanger for electroplating is a key equipment in the electroplating process, and its design, materials and structure directly affect the quality and uniformity of the electroplating layer. By reasonably selecting the type of hanger, optimizing the hanging method and performing regular maintenance, the electroplating effect and production efficiency can be significantly improved.

[0003] In the Chinese patent with the publication number CN110823201 B, a laser detector for the posture of a spraying hanger is mentioned. The laser detector for the posture of a spraying hanger includes a test frame, a spraying hanger and an electric control box assembly; a spraying workpiece to be sprayed is placed in front of the spraying hanger, and the position of the spraying workpiece corresponds to the position of the spray gun of the spraying robot; while the test frame is arranged on the back of the spraying hanger, and six laser sensors corresponding to the position of the spraying hanger are installed on the test frame. The present invention uses laser sensors to detect the posture of the spraying hanger, which is a non-contact measurement method, with fast detection speed and good data repeatability. Compared with the existing methods of using a robot to align points and using a laser level to lay lines, it has the advantages of no need for manual intervention, no need for manual adjustment of the position, and no need for manual judgment of the deviation degree.

[0004] The laser detector for the posture of a spraying hanger in the above comparative patent has the advantages of no need for manual intervention, no need for manual adjustment of the position, and no need for manual judgment of the deviation degree. However, when the workpiece is placed on the hanger, the direction and position of the workpiece are fixed. When electroplating and spraying are carried out, it is difficult to electroplate and spray the workpiece more evenly, resulting in the problem that the spraying on the surface of the workpiece is uneven and affects the processing efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a hanger for improving electroplating uniformity to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A hanger for improving electroplating uniformity, comprising:

[0008] The device main body;

[0009] A multi-surface spraying mechanism, which is arranged inside the device body for linkage rotation; the multi-surface spraying mechanism includes a driving member, one end of which is transmission-connected to a first folding rod;

[0010] An anti-drop mechanism, which is arranged at the lower end of the multi-surface spraying mechanism and is used to fix the workpiece. The anti-drop mechanism includes a connecting piece, and a hook is connected to the lower end of the connecting piece;

[0011] The adjusting mechanism is arranged at the rear end of the device body and is used for adjusting the height. The adjusting mechanism comprises a sliding sleeve, and a standing rod is inserted into the interior of the sliding sleeve.

[0012] Preferably, one end of the first folding rod is connected to the second folding rod, one end of the driving member is drivingly connected to the third folding rod, and one end of the third folding rod is connected to the fourth folding rod.

[0013] Preferably, one end of the second folding rod is movably connected to the first tooth plate, and one end of the fourth folding rod is movably connected to the second tooth plate.

[0014] Preferably, gears are movably connected at one end of the first tooth plate and the second tooth plate, sliders are installed at both ends of the first tooth plate, and a sliding groove is provided on the inner wall of the device body.

[0015] Preferably, one end of the first folding rod matches with one end of the second folding rod, and one end of the third folding rod matches with one end of the fourth folding rod.

[0016] Preferably, the gear is installed in several groups, one end of the first tooth plate is meshed with the outer surface of the gear, and the outer surface of the slider is slidably matched with the slide groove.

[0017] Preferably, a rotating shaft is inserted into one end of the hook, and an elastic member is sleeved on the outer side of the rotating shaft.

[0018] Preferably, one end of the rotating shaft is connected to a clamping block, and the outer surface of the elastic member matches the outer surface of the rotating shaft.

[0019] Preferably, a screw groove is provided at one end of the standing rod, and a positioning piece is inserted at one end of the sliding sleeve.

[0020] Preferably, the inner wall of the sliding sleeve is slidably matched with the outer surface of the standing rod, and one end of the positioning member is fitted with the screw groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) In the present invention, a spraying multi-sided mechanism is installed inside the device main body. By starting the driving member, the driving member drives the first folding rod and the third folding rod at both ends to move. The first folding rod drives the second folding rod to generate folding rod movement, and the third folding rod drives the fourth folding rod to perform folding rod movement. One end of the second folding rod is connected to the first toothed plate, and one end of the fourth folding rod is connected to the second toothed plate, so that the first toothed plate and the second toothed plate simultaneously generate reciprocating lateral movement. One end of the first toothed plate and the second toothed plate meshes with multiple groups of gears, causing the gears to rotate forward and backward. An electroplated workpiece is hung under the gears through an anti-falling mechanism, so that the driving of the driving member drives the workpiece to rotate forward and backward, cooperating with the electroplating spraying equipment to improve the uniformity of electroplating on both sides of the workpiece. By installing sliders at both ends of the first toothed plate and the second toothed plate, and the sliders slide in the chute on the inner wall of the device main body, thereby guiding the lateral reciprocating movement of the first toothed plate and the second toothed plate to prevent deviation, achieving the effect of improving electroplating uniformity. At the same time, an anti-falling mechanism is provided at the lower end of the spraying multi-sided mechanism, and a connecting member is installed at the lower end of the gear. The workpiece is hung on the hook through the hook at the bottom of the connecting member. One end of the hook is connected to a rotating shaft, and the elastic member on the outer surface of the rotating shaft drives the clamping block to open and close. After hanging the workpiece, the clamping block closes the hook due to the rebound of the elastic member, preventing the workpiece from falling during rotation, achieving the function of improving functionality.

[0023] (2) In the present invention, an adjusting mechanism is installed at the rear end of the device main body. By sliding the upper end of the sliding sleeve in the standing rod, the position of the hook at the lower end of the device main body is adjusted, so that workers of different heights can hang the workpiece on the hook more labor-saving. By opening multiple screw grooves at one end of the standing rod, the height of the device main body can be fixed by inserting and fixing the positioning member through the screw grooves. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the spraying multi-sided mechanism of the present invention;

[0026] Figure 3 It is a schematic diagram of the anti-falling structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the front view structure of the device of the present invention;

[0028] Figure 5 It is the device of the present invention Figure 2 The enlarged schematic diagram of the structure at A in the device;

[0029] Figure 6 It is a schematic diagram of the bottom view structure of the device of the present invention.

[0030] In the figure: 1. Device main body; 2. Spraying multi-faceted mechanism; 21. Driving member; 22. First folding rod; 23. Second folding rod; 24. Third folding rod; 25. Fourth folding rod; 26. First toothed plate; 27. Second toothed plate; 28. Gear; 206. Slide block; 207. Slide groove; 3. Anti-falling mechanism; 31. Connecting member; 32. Hook; 33. Rotating shaft; 34. Elastic member; 35. Block; 4. Adjusting mechanism; 41. Sliding sleeve; 42. Standing rod; 43. Threaded groove; 44. Positioning member. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1:

[0033] Please refer to Figures 1-6 As shown, a hanger for improving electroplating uniformity includes:

[0034] Device main body 1;

[0035] Spraying multi-faceted mechanism 2, the spraying multi-faceted mechanism 2 is arranged inside the device main body 1 for linkage rotation; the spraying multi-faceted mechanism 2 includes a driving member 21, and one end of the driving member 21 is drivingly connected to the first folding rod 22.

[0036] Specifically, one end of the first folding rod 22 is connected to the second folding rod 23, one end of the driving member 21 is drivingly connected to the third folding rod 24, one end of the third folding rod 24 is connected to the fourth folding rod 25, one end of the second folding rod 23 is movably connected to the first toothed plate 26, one end of the fourth folding rod 25 is movably connected to the second toothed plate 27, one end of the first toothed plate 26 and the second toothed plate 27 is movably connected to the gear 28, both ends of the first toothed plate 26 are provided with slide blocks 206, the inner wall of the device main body 1 is provided with slide grooves 207, one end of the first folding rod 22 is matched with one end of the second folding rod 23, one end of the third folding rod 24 is matched with one end of the fourth folding rod 25, several groups of gears 28 are installed, one end of the first toothed plate 26 is meshed with the outer surface of the gear 28, and the outer surface of the slide block 206 is in sliding fit with the slide groove 207.

[0037] In addition, by reasonably installing the multi-surface spraying mechanism 2 inside the device body 1, the mechanism is intended to achieve multi-surface uniform spraying of the workpiece during the electroplating process. The specific operation process is as follows: when the driving member 21 is started, the driving member 21, as a power source, starts to operate and drives the first folding rod 22 and the third folding rod 24 connected at both ends thereof to perform regular activities. The activity of the first folding rod 22 further drives the second folding rod 23 to generate corresponding folding rod movement, forming a linkage effect; at the same time, the activity of the third folding rod 24 also drives the fourth folding rod 25 to perform synchronous folding rod movement;

[0038] Since one end of the second folding rod 23 is directly connected to the first tooth plate 26, and one end of the fourth folding rod 25 is directly connected to the second tooth plate 27, when the second folding rod 23 and the fourth folding rod 25 move, they will drive the first tooth plate 26 and the second tooth plate 27 to generate lateral reciprocating motion at the same time. This reciprocating motion is accurate and sequential, ensuring the smooth progress of subsequent steps.

[0039] One end of the first tooth plate 26 and the second tooth plate 27 is designed with a toothed structure meshing with multiple sets of gears 28. When the first tooth plate 26 and the second tooth plate 27 perform transverse reciprocating motion, they will mesh with the multiple sets of gears 28, so that the gears 28 produce alternating positive and negative rotational motion. This rotational motion is stable and controllable, providing power support for the subsequent rotation of the workpiece;

[0040] At the lower end of the gear 28, the workpiece to be electroplated is hung by a well-designed anti-drop mechanism 3. The design of the anti-drop mechanism 3 ensures the stability of the workpiece during rotation and prevents it from falling off due to rotation. When the gear 28 rotates forward and reverse, it will drive the workpiece hung below it to rotate forward and reverse. This rotational motion cooperates with the external electroplating spraying equipment, so that both sides of the workpiece can be evenly electroplated, thereby improving the uniformity and quality of electroplating.

[0041] In order to ensure the stability and accuracy of the first tooth plate 26 and the second tooth plate 27 during the lateral reciprocating motion, sliders 206 are installed at both ends of each of them. These sliders 206 can accurately slide in the preset slide grooves 207 on the inner wall of the device body 1, so as to efficiently guide and support the lateral reciprocating motion of the first tooth plate 26 and the second tooth plate 27. This design prevents the first tooth plate 26 and the second tooth plate 27 from deflecting or shaking during the motion, thereby ensuring the stability and reliability of the entire electroplating process.

[0042] In summary, through the above series of mechanical linkage and precise control, a significant effect of improving the uniformity of electroplating is achieved. This design not only improves the quality and production efficiency of electroplating, but also reduces production costs and scrap rates. It has broad application prospects and practical value.

[0043] Embodiment 2:

[0044] Reference Figures 1-6 As shown, the anti-falling mechanism 3 is provided at the lower end of the multi-sided spraying mechanism 2 for fixing the workpiece. The anti-falling mechanism 3 includes a connecting piece 31, and the lower end of the connecting piece 31 is connected to a hook 32; one end of the hook 32 is inserted with a rotating shaft 33, an elastic member 34 is sleeved outside the rotating shaft 33, one end of the rotating shaft 33 is connected to a clamping block 35, and the outer surface of the elastic member 34 is matched with the outer surface of the rotating shaft 33.

[0045] As can be seen from the above, in the overall design framework of the multi-sided spraying mechanism 2, in order to further improve the stability and safety of the workpiece during the electroplating and spraying process, the anti-falling mechanism 3 is specially and carefully set at its lower end. The design of this anti-falling mechanism 3 fully considers the possible falling risk of the workpiece during rotary spraying. Through a series of precise mechanical structures and elastic elements, the effective fixation and protection of the workpiece are realized;

[0046] Specifically, at the lower end of the gear 28, the connecting piece 31 is installed. This connecting piece 31 not only serves as a bridge between the gear 28 and the lower structure, but also undertakes the important task of supporting and fixing the workpiece. The bottom of the connecting piece 31 is designed with a hook 32. This design enables the workpiece to be conveniently hung on the hook 32, providing convenience for subsequent rotary spraying;

[0047] Under the combined action of the rotating shaft 33 and the elastic member 34, the clamping block 35 is designed. The clamping block 35 is connected to the rotating shaft 33 and can be opened and closed under the drive of the elastic member 34. When the workpiece needs to be hung on the hook 32, the clamping block 35 can be opened manually or by an external mechanical device to provide enough hanging space for the workpiece. Once the workpiece is hung, the resilience of the elastic member 34 will quickly close the clamping block 35 to close the opening of the hook 32, effectively preventing the workpiece from falling off due to inertia or external force during rotation;

[0048] The design of this anti-falling mechanism 3 not only improves the stability of the workpiece during the electroplating and spraying process, but also greatly enhances the safety of the equipment. Through the resilience of the elastic member 34, the clamping block 35 can be automatically and quickly closed without manual intervention, greatly improving the work efficiency. At the same time, this mechanism also has good adaptability and reliability, and can adapt to the hanging requirements of workpieces with different shapes, sizes and weights, providing strong technical support for the production in the electroplating and spraying industry;

[0049] In addition, the design of the anti-falling mechanism 3 also fully considers the maintenance and upkeep of the equipment. Components such as the connecting piece 31, the hook 32, the rotating shaft 33, the elastic member 34 and the clamping block 35 are all made of wear-resistant and corrosion-resistant materials, and have good service life and stability. During the use of the equipment, only need to regularly check and lubricate each component to ensure its normal operation and extend its service life.

[0050] Example 3:

[0051] Reference Figures 1-6 As shown, there is an adjusting mechanism 4. The adjusting mechanism 4 is arranged at the rear end of the device main body 1 for adjusting the height. The adjusting mechanism 4 includes a sliding sleeve 41. A standing rod 42 is inserted into the inside of the sliding sleeve 41. A threaded groove 43 is opened at one end of the standing rod 42. A positioning member 44 is inserted into one end of the sliding sleeve 41. The inner wall of the sliding sleeve 41 is in sliding fit with the outer surface of the standing rod 42. One end of the positioning member 44 is in contact with the threaded groove 43.

[0052] In order to further optimize the usability and applicability of the device, an adjusting mechanism 4 is particularly added to the rear end of the device main body 1. This design aims to solve the problem that it may be inconvenient for workers of different heights to hang workpieces during operation. Through scientific and reasonable mechanical structure adjustment, the flexible control of the position of the hook 32 at the lower end of the device main body 1 is realized, thus significantly improving the work efficiency and operation comfort;

[0053] The core components of the adjusting mechanism 4 include a sliding sleeve 41 and a standing rod 42. As a key component for connection and support, the sliding sleeve 41 has a precisely designed sliding structure at its upper end, which can smoothly fit into the internal space of the standing rod 42 and slide up and down along the axial direction of the standing rod 42. This sliding design not only ensures the smoothness of the adjustment process but also guarantees the stability and accuracy of the device main body 1 during height adjustment;

[0054] In actual operation, the worker can adjust the height of the device main body 1 by manually sliding the sliding sleeve 41 according to their own height and operating habits. As the sliding sleeve 41 moves up and down, the position of the hook 32 at the lower end of the device main body 1 will also change accordingly, so that workers of different heights can easily hang the workpiece on the hook 32. This design greatly reduces the operation burden of the worker, improves the work efficiency, and at the same time reduces the risk of physical fatigue and injury caused by bending down or standing on tiptoe for a long time;

[0055] In order to ensure that the sliding sleeve 41 can be stably fixed after being adjusted to the appropriate height, multiple groups of threaded grooves 43 are carefully designed at one end of the standing rod 42. These threaded grooves 43 are evenly distributed on the surface of the standing rod 42, providing multiple fixing points for the insertion of the positioning member 44. As a key component for locking the height of the device main body 1, the positioning member 44 is ingeniously designed and easy to operate. The worker only needs to insert the positioning member 44 into the corresponding threaded groove 43 and firmly fix it by rotating or tightening, etc., to achieve the precise locking of the height of the device main body 1;

[0056] The design of multiple sets of screw grooves 43 not only increases the flexibility and diversity of adjustment, but also makes the height adjustment of the device body 1 more precise and reliable. Staff can select the most suitable fixing point from multiple screw grooves 43 according to actual needs, so as to achieve fine adjustment and precise control of the height of the device body 1. This design not only meets the operation needs of staff with different heights, but also improves the overall adaptability and practicability of the device;

[0057] In addition, the design of the adjustment mechanism 4 also fully considers the maintenance and upkeep of the equipment. Key components such as the sliding sleeve 41 and the standing rod 42 are made of wear-resistant and corrosion-resistant materials, with good service life and stability. During the use of the equipment, only by regularly checking and lubricating each component can its normal operation be ensured and its service life be extended. At the same time, the insertion and extraction operations of the positioning part 44 are extremely simple, providing great convenience for the daily maintenance and upkeep of the equipment;

[0058] In summary, by installing the adjustment mechanism 4 at the rear end of the device body 1 and using the sliding structure of the sliding sleeve 41 and the standing rod 42 as well as the locking mechanism of multiple sets of screw grooves 43 and the positioning part 44, the flexible control and precise locking of the position of the hook 32 at the lower end of the device body 1 are realized. This design not only improves the convenience and applicability of the device, but also provides a more comfortable and efficient operation environment for staff with different heights.

[0059] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0060] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "multiple" is two or more, unless otherwise specifically defined.

[0061] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0063] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0064] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hanger for improving electroplating uniformity, characterized in that include: Device body (1); A multi-surface spraying mechanism (2), the multi-surface spraying mechanism (2) being arranged inside the device body (1) for linkage rotation; the multi-surface spraying mechanism (2) comprising a driving member (21), one end of the driving member (21) being transmission-connected to a first folding rod (22); An anti-drop mechanism (3), the anti-drop mechanism (3) being arranged at the lower end of the multi-surface spraying mechanism (2) and used for fixing the workpiece, the anti-drop mechanism (3) comprising a connecting member (31), the lower end of the connecting member (31) being connected with a hook (32); An adjusting mechanism (4) is arranged at the rear end of the device body (1) and is used for adjusting the height. The adjusting mechanism (4) comprises a sliding sleeve (41), and a standing rod (42) is inserted into the interior of the sliding sleeve (41).

2. The hanger for improving electroplating uniformity according to claim 1, wherein: One end of the first folding rod (22) is connected to the second folding rod (23), one end of the driving member (21) is drivingly connected to the third folding rod (24), and one end of the third folding rod (24) is connected to the fourth folding rod (25).

3. The hanger for improving electroplating uniformity according to claim 2, characterized in that: One end of the second folding rod (23) is movably connected to a first tooth plate (26), and one end of the fourth folding rod (25) is movably connected to a second tooth plate (27).

4. The hanger for improving electroplating uniformity according to claim 3, wherein: One end of the first tooth plate (26) and the second tooth plate (27) is movably connected to a gear (28), both ends of the first tooth plate (26) are provided with sliders (206), and the inner wall of the device body (1) is provided with a slide groove (207).

5. The hanger for improving electroplating uniformity according to claim 4, characterized in that: One end of the first folding rod (22) matches one end of the second folding rod (23), and one end of the third folding rod (24) matches one end of the fourth folding rod (25).

6. The hanger for improving electroplating uniformity according to claim 5, characterized in that: The gear (28) is installed in a plurality of groups, one end of the first tooth plate (26) is meshed with the outer surface of the gear (28), and the outer surface of the slider (206) is slidably matched with the slide groove (207).

7. The hanger for improving electroplating uniformity according to claim 1, wherein: A rotating shaft (33) is inserted into one end of the hook (32), and an elastic member (34) is sleeved on the outer side of the rotating shaft (33).

8. The hanger for improving electroplating uniformity according to claim 7, wherein: One end of the rotating shaft (33) is connected to a clamping block (35), and the outer surface of the elastic member (34) matches the outer surface of the rotating shaft (33).

9. The hanger for improving electroplating uniformity according to claim 1, characterized in that: A screw groove (43) is formed at one end of the standing rod (42), and a positioning piece (44) is inserted at one end of the sliding sleeve (41).

10. The hanger for improving electroplating uniformity according to claim 9, characterized in that: The inner wall of the sliding sleeve (41) is slidably matched with the outer surface of the standing rod (42), and one end of the positioning member (44) is in contact with the screw groove (43).

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