Auxiliary fixing structure for metal surface treatment

By using a fixing structure that combines suction cups and magnetic plates, and a bidirectional lead screw system driven by a cylinder and a motor, the problem of low fixing efficiency in existing technologies is solved, achieving fast and stable fixing of metal parts and convenient maintenance.

CN224587852UActive Publication Date: 2026-08-04JIANGSU YUHAO INTELLIGENT MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YUHAO INTELLIGENT MFG CO LTD
Filing Date
2025-07-04
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing metal surface treatment processes, the use of mechanical parts such as bolts and nuts for fixing results in low work efficiency and limitations in fixing methods.

Method used

The device employs a fixing structure that combines suction cups and magnetic plates. The four suction cups adhere to the four corners of the metal parts, and the position and spacing of the fixing parts are adjusted using a two-way screw system driven by a cylinder and a motor to achieve stable fixation.

Benefits of technology

It enables fast and stable fixing of metal parts, adapts to different sizes and surface conditions, and improves work efficiency and maintenance convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses an auxiliary fixing structure for metal surface treatment, relating to the field of metal surface treatment. It includes a first sliding cavity, with a first sliding block movably connected to the top of the first sliding cavity, and a second sliding cavity mounted on the top of the first sliding block. A second sliding block is movably connected to the top of the second sliding cavity, and the top of the second sliding block is hinged to the bottom of the first sliding cavity. A second sliding cavity is provided at the rear end of the first sliding cavity. This application utilizes suction cups to assist in fixing metal parts during the surface treatment process. During use, the positions of the four suction cups can be adjusted according to the length and width parameters of the metal part, aligning the four suction cups with the four corners of the metal part to achieve auxiliary fixing. This not only provides good fixing effect but also has strong applicability and can handle metal parts with different surface conditions, further improving practicality and convenience.
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Description

Technical Field

[0001] This application relates to the field of metal surface treatment, and in particular to auxiliary fixing structures for metal surface treatment. Background Technology

[0002] In modern industry, metallic materials, with their superior properties such as high strength, good electrical and thermal conductivity, are widely used in numerous industries including aerospace, automotive manufacturing, electronic equipment, and machining. However, during service, metallic materials often experience performance degradation, shortened service life, and even safety accidents due to problems such as corrosion, wear, and fatigue. Therefore, metal surface treatment technology, as a key means to improve the surface properties of metals and enhance their overall service capabilities, has been extensively researched and applied.

[0003] In existing technologies, auxiliary fixing during metal surface treatment often involves clamping and fixing metal workpieces using mechanical parts such as bolts, nuts, and screws. This method is simple in structure and convenient to operate. However, it is inefficient and has limitations in fixing because it requires disassembling and assembling bolts, nuts, or screws.

[0004] A search revealed a metal surface treatment clamping mechanism disclosed in Chinese patent literature (publication number: CN222177411U), but it still has the following drawbacks:

[0005] Although the aforementioned metal surface treatment clamping mechanism enables the metal sheet to be flipped to any angle for processing without removing the metal sheet, and has better applicability than traditional clamps, it still has problems such as low work efficiency due to the need to disassemble and assemble bolts, nuts or screws, and limited fixing capabilities. Utility Model Content

[0006] To improve the problem of low work efficiency and limited fixing caused by the need to disassemble and assemble bolts, nuts, or screws, this application provides an auxiliary fixing structure for metal surface treatment.

[0007] The auxiliary fixing structure for metal surface treatment provided in this application adopts the following technical solution:

[0008] An auxiliary fixing structure for metal surface treatment includes a first sliding cavity. A first sliding block is movably connected inside the top end of the first sliding cavity, and a second sliding cavity is installed at the top end of the first sliding block. A second sliding block is movably connected inside the top end of the second sliding cavity, and the top end of the second sliding block is hinged to the bottom end of the first sliding cavity. A second sliding cavity is provided at the rear end of the first sliding cavity. Sleeves are symmetrically provided at the top ends of both the second and first sliding cavities. A return spring is installed at the bottom end of each sleeve. The top end of each return spring is connected to the bottom end of a movable rod. A suction cup is installed at the top end of each movable rod, and an abutment plate is provided below each suction cup.

[0009] By adopting the above technical solution, the four adjusted suction cups are adsorbed at the four corners of the bottom of the metal part to complete the auxiliary fixation, and the movable rod moves downward until the contact plate contacts the suction cup, reducing the gap and air between the suction cup and the metal part.

[0010] Preferably, one end of the first sliding block is connected to the output end of the cylinder, the top end of the first sliding block is provided with a plug-in cavity, a plug-in block is inserted into the top end of the plug-in cavity, and the plug-in block is installed at the bottom end of the second sliding cavity.

[0011] By adopting the above technical solution, the cylinder output operation pushes the first sliding block to move inside the top of the first sliding cavity, and the first sliding block drives the metal part to move.

[0012] Preferably, a female magnetic absorbing piece is embedded at the bottom of the plug-in block, and the bottom of the female magnetic absorbing piece abuts against the top of the male magnetic absorbing piece. The male magnetic absorbing piece is embedded in the bottom of the plug-in cavity, and the bottom of the female magnetic absorbing piece is magnetically attracted to the top of the male magnetic absorbing piece.

[0013] By adopting the above technical solution, the bottom end of the female magnetic absorbing piece and the top end of the male magnetic absorbing piece are magnetically attracted to each other, which improves the stability of the plug-in block inserted into the top of the plug-in cavity.

[0014] Preferably, one end of the first movable cavity is symmetrically hinged with a connecting arm, and the other end of the connecting arm is hinged to a guide slider, wherein the guide slider is symmetrically and movably connected inside the guide cavity.

[0015] By adopting the above technical solution, the guide slider inside the guide cavity moves in opposite directions, thereby driving the connecting arm to move during the movement of the guide slider. This movement ensures that the distance between the first and second movable cavities meets the actual dimensions of the metal part.

[0016] Preferably, a first transmission screw sleeve is installed through the interior of each guide slider, and the first transmission screw sleeves are symmetrically engaged with the outer side wall of the first bidirectional screw. The first bidirectional screw is rotatably connected to the interior of the guide cavity, and a first motor that is drivenly connected to the first bidirectional screw is installed on one side of the guide cavity.

[0017] By adopting the above technical solution, the first motor drives the first bidirectional lead screw to rotate, which can drive the first transmission lead screw sleeve to move relatively or oppositely, thereby driving the guide slider to move synchronously inside the guide cavity.

[0018] Preferably, both the second movable cavity and the first movable cavity are symmetrically connected with movable blocks inside, and the top of each movable block is connected to the bottom of the sleeve.

[0019] By adopting the above technical solution, the adjustable movable block makes the sleeve, movable rod, suction cup and other components correspond to the width of the metal parts, thereby improving the effect and stability of auxiliary fixation.

[0020] Preferably, a connecting block is installed at one end of each of the movable blocks, and a second transmission lead screw sleeve is installed through the interior of each connecting block.

[0021] By adopting the above technical solution, the relative or opposite movement of the second transmission screw sleeve drives the connecting block and the moving block to move relative to each other.

[0022] Preferably, the second transmission screw sleeves are meshed and installed on both outer walls of the second bidirectional screw, and the second bidirectional screws are rotatably connected between two connecting blocks. A second motor is installed on one side of one of the connecting blocks, and the output end of the second motor is connected to one end of the corresponding second bidirectional screw.

[0023] By adopting the above technical solution, the output of the second motor is controlled according to the size requirements of the metal parts or the needs of the operator, driving the second bidirectional lead screw to rotate forward or reverse, thereby driving the second transmission lead screw sleeve to move relatively or in opposite directions.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. Suction cups are used to assist in fixing metal parts during surface treatment. During use, the positions of the four suction cups can be adjusted according to the length and width parameters of the metal parts, so that the four suction cups correspond to the four corners of the metal parts and complete the auxiliary fixing. This not only has a good fixing effect, but also has strong applicability and can deal with metal parts with different surface conditions, further improving practicality and convenience.

[0026] 2. During use, this utility model can quickly separate the second sliding cavity and other components from the first sliding cavity for maintenance and repair, thus facilitating maintenance and repair. It is also applicable to different specifications and different processing ends of metal surface treatment devices, making the device as a whole easy to maintain and highly adaptable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the combined component structure of the first sliding cavity, the first sliding block, the insertion cavity, the insertion block, and the second sliding cavity in this utility model;

[0029] Figure 3 This is a cross-sectional structural diagram of the guide cavity in this utility model;

[0030] Figure 4 This is a schematic diagram of the combined component structure of the second movable cavity, movable block, suction cup and contact plate in this utility model;

[0031] Figure 5 This is a schematic diagram of the disassembled parts of the sleeve, return spring, movable rod, suction cup, and contact plate in this utility model.

[0032] Reference numerals: 1. First sliding cavity; 2. First sliding block; 3. Cylinder; 4. Insertion cavity; 5. Male magnetic absorbing piece; 6. Female magnetic absorbing piece; 7. Insertion block; 8. Second sliding cavity; 9. Second sliding block; 10. First movable cavity;

[0033] 11. Connecting arm; 12. Guide slider; 13. Guide cavity; 14. First transmission screw sleeve; 15. First bidirectional screw; 16. First motor; 17. Second movable cavity; 18. Movable block; 19. Connecting block; 20. Second transmission screw sleeve;

[0034] 21. Second bidirectional lead screw; 22. Connecting block; 23. Second motor; 24. Sleeve; 25. Return spring; 26. Movable rod; 27. Suction cup; 28. Contact plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0036] This application discloses an auxiliary fixing structure for metal surface treatment.

[0037] Reference Figure 1 and Figure 2An auxiliary fixing structure for metal surface treatment includes a first sliding cavity 1. A first sliding block 2 is movably connected to the top of the first sliding cavity 1. The rear end of the first sliding block 2 is fixedly connected to the output end of a cylinder 3. The cylinder 3 is fixedly connected to the rear end of the first sliding cavity 1. An insertion cavity 4 is opened at the top of the first sliding block 2. A male magnetic absorbing piece 5 is embedded inside the top of the insertion cavity 4. The top of the male magnetic absorbing piece 5 abuts against the bottom end of a female magnetic absorbing piece 6 and is magnetically connected. The female magnetic absorbing piece 6 is embedded in the bottom end of an insertion block 7. The bottom end of the insertion block 7 is inserted into the top of the insertion cavity 4. The top end of the insertion block 7 is fixedly connected to the bottom end of a second sliding cavity 8.

[0038] During use, to ensure the applicability of the metal surface treatment device, the cylinder 3 can drive the first sliding block 2 to move back and forth inside the top of the first sliding cavity 1. This causes the second sliding cavity 8 and the components and metal parts connected to the second sliding cavity 8 to move synchronously, thus corresponding to the processing end of the metal surface treatment device and driving the metal parts to move back and forth, eliminating the need for frequent adjustments to the fixed position. At the same time, the bottom end of the second sliding cavity 8 is inserted into the top end of the insertion cavity 4 opened inside the top of the first sliding block 2 through the insertion block 7, and is further limited by the magnetic attraction between the top end of the male magnetic suction piece 5 and the bottom end of the female magnetic suction piece 6. This allows the device to be quickly separated from the first sliding cavity 1 after it is connected and fixed to the processing area of ​​the metal surface treatment device, making maintenance and repair more convenient.

[0039] Reference Figure 1 and Figure 3 The top of the second sliding cavity 8 is movably connected to a second sliding block 9. The top of the second sliding block 9 is fixedly connected to a first movable cavity 10. The rear end of the second sliding cavity 8 is fixedly connected to a second movable cavity 17. The end of the second movable cavity 17 near the first movable cavity 10 is fixedly connected to a guide cavity 13. The guide cavity 13 is symmetrically and movably connected to a guide slider 12. The guide slider 12 is fixedly connected to a first transmission screw sleeve 14 through it. The first transmission screw sleeve 14 is symmetrically engaged with the outer walls of both sides of the first bidirectional screw 15. The threads on both sides of the outer surface of the first bidirectional lead screw 15 are arranged in opposite structures. The first bidirectional lead screw 15 is rotatably connected to the inside of the guide cavity 13. The first motor 16 is fixedly connected to one side of the guide cavity 13. The output end of the first motor 16 is fixedly connected to one end of the corresponding first bidirectional lead screw 15. The end of the second sliding block 9 near the first movable cavity 10 is hinged to the connecting arm 11 through a rotating shaft. The other end of the connecting arm 11 is hinged to the rear end of the first movable cavity 10 through a rotating shaft. The two connecting arms 11 are arranged in a figure-eight shape.

[0040] During use, based on the actual dimensions of the metal part, the first motor 16 outputs its output, driving the first bidirectional lead screw 15 to rotate forward or reverse. Since the first bidirectional lead screw 15 is symmetrically engaged with the first transmission lead screw sleeve 14, the first transmission lead screw sleeve 14 is driven to move relative to or opposite to each other, thereby causing the guide slider 12 to move synchronously inside the guide cavity 13. During the movement of the guide slider 12, the connecting arm 11, which is hinged to the guide slider 12, moves relative to or opposite to each other. In this way, the connecting arm 11 pushes the first movable cavity 10, so that the distance between the first movable cavity 10 and the second movable cavity 17 meets the actual dimensions of the metal part. During the movement of the first movable cavity 10, the second sliding block 9 moves synchronously inside the top of the second sliding cavity 8, ensuring the stability of the movement of the first movable cavity 10. This method can improve the limiting effect during the auxiliary fixing of the metal part and avoid limitations.

[0041] Reference Figure 1 and Figure 4 The first movable cavity 10 and the second movable cavity 17 are symmetrically connected to movable blocks 18, and one end of the movable block 18 is fixedly connected to a connecting block 19. The connecting blocks 19 all pass through the through cavity, which is opened at the front end of the first movable cavity 10 and the rear end of the second movable cavity 17 respectively. The connecting blocks 19 are all fixedly connected to the second transmission screw sleeve 20. The second transmission screw sleeve 20 is symmetrically engaged with the outer walls of the two sides of the second bidirectional screw 21. The second bidirectional screw 21 is rotatably connected between two connecting blocks 22. The front end of the first movable cavity 10 is symmetrically fixedly connected to the connecting block 22, and the rear end of the second movable cavity 17 is symmetrically fixedly connected to the connecting block 22. One end of the second bidirectional screw 21 is fixedly connected to the output end of the second motor 23. The second motor 23 is fixedly connected to the side wall of the corresponding connecting block 22. The threads on the outer surfaces of the two sides of the second bidirectional screw 21 are arranged with opposite structures.

[0042] During use, based on the actual dimensions of the metal part, the second motor 23 outputs its output, driving the second bidirectional lead screw 21 to rotate forward or reverse. This drives the second transmission lead screw sleeve 20, which meshes with the outer wall of the second bidirectional lead screw 21, to move relative to or opposite to each other. Consequently, the driving block 18 moves relative to or opposite to each other within both the first movable cavity 10 and the second movable cavity 17. This ensures that the moved sleeve 24, movable rod 26, and suction cup 27 correspond to the width of the metal part, resulting in better limiting effect during the auxiliary fixing of the metal part and avoiding limitations.

[0043] Reference Figure 1 , Figure 4 and Figure 5Each movable block 18 has a sleeve 24 fixedly connected to its top end, and a return spring 25 is fixedly connected to the bottom end of each sleeve 24. The top end of the return spring 25 is fixedly connected to the bottom end of the movable rod 26. The bottom end of the movable rod 26 is movably connected to the inside of the top end of the sleeve 24. A suction cup 27 that adheres to the bottom surface of the metal part is fixedly connected to the top end of the movable rod 26. An abutment plate 28 that is perpendicular to the suction cup 27 is fixedly connected to the outer wall of the sleeve 24. The abutment plate 28 is a circular ring structure.

[0044] After the metal parts requiring surface treatment are assisted in fixing, and after adjusting according to the size of the metal parts, the suction cups 27 are positioned at the four corners of the metal parts. The metal parts are then placed in the auxiliary fixing area formed by the four suction cups 27. The weight of the metal parts causes the movable rod 26 to move downward, compressing the return spring 25, until the abutment plate 28 abuts against the bottom of the suction cup 27, limiting the vertical movement of the movable rod 26. This reduces the amount of air residue in the abutment plate 28 against the suction cup 27. This method can quickly assist in fixing metal parts of different sizes and can also deal with uneven areas on the metal parts, making it highly adaptable during use. When the metal parts are separated, the metal parts are grasped and moved upward. This, combined with the potential energy released by the return spring 25, makes it easier to release the suction cups 27 from their adsorption and fixation.

[0045] The implementation principle of the auxiliary fixing structure for metal surface treatment in this application embodiment is as follows:

[0046] First, the first sliding cavity 1 is fixed to the area of ​​the metal surface treatment device by bolts or other means. During use, the first sliding block 2 is driven by the cylinder 3 to move back and forth inside the top of the first sliding cavity 1, so that it can correspond to the processing end of the metal surface treatment device and drive the metal part to move back and forth.

[0047] Secondly, based on the actual size of the metal part, the first movable cavity 10 is pushed by the connecting arm 11 so that the distance between the first movable cavity 10 and the second movable cavity 17 meets the actual size of the metal part. Also, the driving movable block 18 moves relative to or opposite to each other inside the first movable cavity 10 and the second movable cavity 17, so that the sleeve 24, movable rod 26 and suction cup 27 and other components after the movement correspond to the width size of the metal part.

[0048] After adjusting according to the size of the metal part, the suction cup 27 is positioned at the four corners of the metal part, and then the metal part is placed in the auxiliary fixing area composed of the four suction cups 27. The weight of the metal part pushes the movable rod 26 downward, compressing the return spring 25, until the bottom of the suction cup 27 is touched by the abutment plate 28, which limits the vertical movement of the movable rod 26 and makes the abutment plate 28 touch the suction cup 27 to reduce the residual air.

[0049] Finally, the bottom end of the second sliding cavity 8 is inserted into the top end of the insertion cavity 4 opened inside the top end of the first sliding block 2 through the insertion block 7, and is further limited by the magnetic attraction between the top end of the male magnetic absorbing piece 5 and the bottom end of the female magnetic absorbing piece 6. After the device is connected and fixed to the processing area of ​​the metal surface treatment device, the second sliding cavity 8 and other components can be quickly separated from the first sliding cavity 1 for maintenance and repair. In this way, the auxiliary fixing structure for metal surface treatment is completed.

[0050] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An auxiliary fixing structure for metal surface treatment, characterized in that: The device includes a first sliding cavity (1), a first sliding block (2) is movably connected inside the top of the first sliding cavity (1), and a second sliding cavity (8) is installed at the top of the first sliding block (2). A second sliding block (9) is movably connected inside the top of the second sliding cavity (8), and the top of the second sliding block (9) is hinged to the bottom of the first movable cavity (10). A second movable cavity (17) is provided at the rear end of the first movable cavity (10), and sleeves (24) are symmetrically provided at the top of the second movable cavity (17) and the top of the first movable cavity (10). A return spring (25) is installed at the bottom of the sleeve (24), and the top of the return spring (25) is connected to the bottom of the movable rod (26). A suction cup (27) is installed at the top of the movable rod (26), and a contact plate (28) is provided below the suction cup (27).

2. The auxiliary fixing structure for metal surface treatment according to claim 1, characterized in that: One end of the first sliding block (2) is connected to the output end of the cylinder (3). The top end of the first sliding block (2) is provided with a plug-in cavity (4). A plug-in block (7) is inserted into the top end of the plug-in cavity (4). The plug-in block (7) is installed at the bottom end of the second sliding cavity (8).

3. The auxiliary fixing structure for metal surface treatment according to claim 2, characterized in that: The bottom end of the plug block (7) is inlaid with a female magnetic absorbing piece (6), and the bottom end of the female magnetic absorbing piece (6) abuts against the top end of the male magnetic absorbing piece (5). The male magnetic absorbing piece (5) is inlaid in the bottom end of the plug cavity (4), and the bottom end of the female magnetic absorbing piece (6) is magnetically attracted to the top end of the male magnetic absorbing piece (5).

4. The auxiliary fixing structure for metal surface treatment according to claim 1, characterized in that: One end of the first movable cavity (10) is symmetrically hinged with a connecting arm (11), and the other end of the connecting arm (11) is hinged with a guide slider (12). The guide slider (12) is symmetrically and movably connected inside the guide cavity (13).

5. The auxiliary fixing structure for metal surface treatment according to claim 4, characterized in that: The guide slider (12) is equipped with a first transmission screw sleeve (14) through it, and the first transmission screw sleeve (14) is symmetrically engaged with the outer wall of the first bidirectional screw (15). The first bidirectional screw (15) is rotatably connected to the inside of the guide cavity (13), and a first motor (16) is installed on one side of the guide cavity (13) and is connected to the first bidirectional screw (15) in a transmission.

6. The auxiliary fixing structure for metal surface treatment according to claim 1, characterized in that: The interiors of the second movable cavity (17) and the first movable cavity (10) are symmetrically connected with movable blocks (18), and the top of each movable block (18) is connected to the bottom of the sleeve (24).

7. The auxiliary fixing structure for metal surface treatment according to claim 6, characterized in that: Each of the movable blocks (18) is equipped with a connecting block (19) at one end, and a second transmission screw sleeve (20) is installed through the interior of each connecting block (19).

8. The auxiliary fixing structure for metal surface treatment according to claim 7, characterized in that: The second transmission screw sleeve (20) is meshed and installed on both sides of the outer wall of the second bidirectional screw (21). The second bidirectional screw (21) is rotatably connected between two connecting blocks (22). A second motor (23) is installed on one side of one of the connecting blocks (22). The output end of the second motor (23) is connected to one end of the corresponding second bidirectional screw (21).