Clamp for pickling treatment of metal surface

By designing a clamp that combines lifting, rotation, and vibration, and combining it with the flexible gripping of a micro suction cup, the problem of sacrificing pickling efficiency when fixing metal parts by existing clamps is solved, achieving a more efficient pickling effect on metal surfaces.

CN224062905UActive Publication Date: 2026-03-31WUXI HEHONG PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing metal surface pickling fixtures prioritize stability over pickling efficiency when fixing metal parts, resulting in insufficient pickling process.

Method used

Design a clamp comprising a lifting assembly, a rotation drive assembly, a vibration generator, and a micro-suction cup. Through a combination of rotation, lifting, and vibration, the metal part is continuously moved in the pickling solution. Combined with the flexible clamping of the micro-suction cup, stability and mobility are ensured.

Benefits of technology

It improves the contact efficiency between metal parts and pickling solution, enhances the pickling effect, quickly removes oxide scale and rust, and improves pickling efficiency.

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Abstract

The utility model discloses a clamp for metal surface pickling treatment, which relates to the technical field of metal surface treatment and is technically characterized by comprising a lifting component, a movable part at the bottom of the lifting component is fixedly connected with an output shaft of a rotation driving component and is fixedly connected with a fixed plate, and the fixed plate is provided with a vibration plate through a vibration generator. A clamping assembly is arranged on the bottom face of the vibration plate. A plurality of micro suction cups are uniformly arranged on the working surface of the clamping assembly; the pickling device can help the metal piece to move and improve the pickling efficiency.
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Description

TECHNICAL FIELD

[0001] The utility model relates to metal surface treatment technical field especially is related to a clamp for metal surface pickling treatment. BACKGROUND

[0002] In the field of metal processing and manufacturing, the pretreatment of metal surfaces is one of the key steps to ensure the quality of subsequent processing and product performance. Among them, metal surface pickling as an important chemical treatment method is widely used to remove the oxide skin, rust, oil stains and other impurities on the metal surface to improve the cleanliness, roughness of the metal surface and enhance the adhesion of the metal and the subsequent coating or plating layer. The pickling process usually involves immersing metal parts in a solution containing specific acids (such as sulfuric acid, hydrochloric acid, hydrofluoric acid, etc.), to clean and activate the metal surface through chemical reaction.

[0003] The metal piece pickling clamp design of the prior application No. CN202421038772. X metal surface efficient pickling device in use, but there is a common technical defect: these clamps often pay too much attention to the fixation of metal parts to ensure their stability during pickling, but at the expense of pickling efficiency to some extent. SUMMARY

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a clamp for metal surface pickling treatment, which can make the metal parts move continuously during pickling and improve the pickling efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A clamp for metal surface pickling treatment, comprising a lifting assembly, the movable part at the bottom of the lifting assembly is fixedly connected with the output shaft of the rotating drive assembly, and the fixed plate is fixedly connected with the output shaft of the rotating drive assembly, the fixed plate is provided with a vibration plate through a vibration generator, and the vibration plate bottom surface is provided with a clamping assembly. A plurality of micro suction cups are evenly arranged on the working surface of the clamping assembly to help the metal parts move and improve the pickling efficiency.

[0007] Preferably, the clamping assembly comprises a clamping frame fixedly connected with the vibration plate, a plurality of clamping cylinders are arranged on the clamping frame, a clamping plate is fixedly arranged on the movable part of the clamping cylinder towards the center of the clamping frame, and a plurality of micro suction cups are arranged in a rectangular array on the working surface of the clamping plate, so as to facilitate clamping the metal parts.

[0008] Preferably, the working surface of the clamping plate is coated with a non-slip coating, and the non-slip coating is made of polyurethane or polytetrafluoroethylene material to improve the non-slip ability.

[0009] Preferably, a plurality of reinforcing rods are arranged between the bottom movable part of the lifting assembly and the rotating driving assembly, both ends of the reinforcing rods are fixedly connected with the movable part of the lifting assembly and the rotating driving assembly, and the reinforcing rods are annularly and uniformly distributed on the side of the lifting assembly, thereby improving the stability of the clamping assembly.

[0010] Preferably, the lifting assembly is a lifting cylinder, the rotating driving assembly is an electric motor, the vibration generator is a pneumatic vibrator or an electromagnetic vibrator, and the micro suction disc is made of silica gel or fluorine rubber.

[0011] The utility model has the following beneficial effects:

[0012] The rotating driving assembly and the lifting assembly are cooperated to realize rotation and lifting movement: the movable part at the bottom of the lifting assembly in the clamp is fixedly connected with the output shaft of the rotating driving assembly, the rotating driving assembly can drive the fixed plate to rotate, and further drive the metal piece on the vibration plate and the clamping assembly to rotate. At the same time, the lifting assembly can realize the lifting movement of the metal piece in the pickling solution. This kind of combined activity mode of rotation and lifting breaks the relatively static state of the metal piece in the pickling process, so that different parts of the metal piece can be more fully contacted with the pickling solution, thereby greatly improving the pickling efficiency.

[0013] The vibration generator drives the metal piece to vibrate: the fixed plate is provided with a vibration plate through the vibration generator, the vibration generator can generate vibration and transmit the vibration to the metal piece on the clamping assembly through the vibration plate. The metal piece vibrates continuously during pickling, which can accelerate the flow of pickling solution on the metal surface on the one hand, so that the pickling solution can penetrate into the tiny pores and uneven places on the metal surface more quickly, and remove the impurities such as oxide skin and rust on the surface; on the other hand, vibration can also promote the impurities on the surface of the metal piece to be separated more quickly, thereby further improving the pickling effect and efficiency.

[0014] The micro suction disc assists the movement and positioning of the metal piece: a plurality of micro suction discs are uniformly arranged on the working surface of the clamping assembly, the micro suction disc is made of silica gel or fluorine rubber and has certain flexibility and adsorption. When clamping the metal piece, the micro suction disc can not only firmly adsorb the metal piece to ensure the stability of the metal piece during the movement, but also can cooperate with the movement of the metal piece to a certain extent to reduce the hindrance to the movement of the metal piece. At the same time, the existence of the micro suction disc enables the metal piece to still have a certain degree of freedom in the clamping state, better adapts to the rotation, lifting and vibration and other movements, thereby helping to improve the pickling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 It is a front view of the first embodiment of the present application.

[0017] Figure 2 It is a front view of the second embodiment of the present application.

[0018] In the figure: 101, lifting assembly; 102, rotating drive assembly; 103, fixed plate; 104, vibration generator; 105, vibration plate; 201, clamping frame; 202, clamping cylinder; 203, clamping plate; 204, micro suction cup; 3, reinforcing rod. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] First embodiment

[0021] As shown in Figure 1 A clamp for metal surface pickling treatment, comprising a lifting assembly 101, the movable part at the bottom of the lifting assembly 101 is fixedly connected with the output shaft of the rotating drive assembly 102, the output shaft is fixedly connected with the fixed plate 103, the fixed plate 103 is provided with the vibration plate 105 through the vibration generator 104, and the vibration plate 105 bottom surface is provided with a clamping assembly. A plurality of micro suction cups 204 are uniformly arranged on the working surface of the clamping assembly, which helps the metal part to move and improves the pickling efficiency.

[0022] As shown in Figure 1As shown, the lifting assembly 101 and the rotating drive assembly 102 are connected with the fixed plate 103. The lifting assembly 101 drives the fixed plate 103, the vibrating plate 105 and the metal pieces on the clamping assembly to move up and down through the up and down movement of its movable part, so that the metal pieces can be immersed in or exposed from the pickling solution, changing the contact depth and range of the metal pieces with the pickling solution. The rotating drive assembly 102 drives the fixed plate 103 to rotate, and then drives the metal pieces to rotate in the pickling solution, so that different surface areas of the metal pieces are in full contact with the pickling solution in turn, breaking the relative static state of the metal pieces in the pickling process, expanding the action area of the pickling solution with the metal surface, and accelerating the progress of the pickling reaction. The fixed plate 103 is connected with the vibrating plate 105 through the vibration generator 104. The vibration generator 104 generates vibration when working, and transmits the vibration to the vibrating plate 105, and the vibrating plate 105 transmits the vibration to the metal pieces on the clamping assembly. Under the action of vibration, the flow speed of the pickling solution on the surface of the metal pieces is accelerated, which can more quickly penetrate into the tiny pores and uneven places on the metal surface, strip the oxides, rust and other impurities attached to the metal surface from the metal surface, and accelerate the falling of the loosened impurities, thereby significantly improving the pickling efficiency. The multiple micro-suction cups 204 uniformly arranged on the working surface of the clamping assembly are made of silica gel or fluorine rubber and have certain flexibility and adsorption capacity. When clamping the metal pieces, the micro-suction cups 204 can tightly adhere to the surface of the metal pieces to generate adsorption force, firmly fixing the metal pieces on the clamping assembly, ensuring that the metal pieces will not fall off or shift during the lifting, rotating and vibrating process, and ensuring the stability of the pickling process. At the same time, the flexibility of the micro-suction cups 204 will not excessively limit the movement of the metal pieces, so that they can cooperate with the movement of the clamp to a certain extent, better realize the movement of the metal pieces in the pickling solution, and further improve the pickling effect and efficiency.

[0023] As Figure 1As shown, the clamping frame 201 of the clamping assembly is fixedly connected with the vibrating plate 105, and a plurality of clamping cylinders 202 are arranged on the clamping frame 201. The movable part of each clamping cylinder 202 is fixedly arranged with a clamping plate 203 towards the center of the clamping frame 201. When it is necessary to clamp the metal piece, the movable part of the clamping cylinder 202 is extended to push the clamping plate 203 to move towards the center of the clamping frame 201. The plurality of clamping plates 203 jointly act on the metal piece from different directions to apply pressure to the metal piece, thereby achieving reliable clamping of the metal piece. This clamping method can accurately adjust the clamping force by controlling the stroke of the clamping cylinder 202 to adapt to metal pieces of different sizes and shapes. A plurality of micro suction cups 204 are arranged in a rectangular array on the working surface of the clamping plate 203 and are made of silicone or fluororubber. When clamping the metal piece, the micro suction cups 204 can tightly adhere to the surface of the metal piece, and the suction effect further enhances the fixing effect of the metal piece, preventing the metal piece from loosening or shifting due to vibration, rotation and other movements in the subsequent pickling process. At the same time, since the micro suction cups 204 have a certain flexibility, they can adapt to the slight deformation and relative movement of the surface of the metal piece when the metal piece moves up and down, rotates and vibrates with the clamp, without causing excessive hindrance to the movement of the metal piece, ensuring that the metal piece can fully contact with the pickling liquid and improving the pickling efficiency.

[0024] As shown in FIG. 1, the clamping assembly is arranged on the vibrating plate 105 of the pickling device 100. The clamping assembly includes a clamping frame 201, a plurality of clamping cylinders 202 and a plurality of clamping plates 203. The clamping frame 201 is fixedly connected with the vibrating plate 105, and the clamping cylinders 202 are arranged on the clamping frame 201. The movable part of each clamping cylinder 202 is fixedly arranged with a clamping plate 203 towards the center of the clamping frame 201. When it is necessary to clamp the metal piece, the movable part of the clamping cylinder 202 is extended to push the clamping plate 203 to move towards the center of the clamping frame 201. The plurality of clamping plates 203 jointly act on the metal piece from different directions to apply pressure to the metal piece, thereby achieving reliable clamping of the metal piece. This clamping method can accurately adjust the clamping force by controlling the stroke of the clamping cylinder 202 to adapt to metal pieces of different sizes and shapes. A plurality of micro suction cups 204 are arranged in a rectangular array on the working surface of the clamping plate 203 and are made of silicone or fluororubber. When clamping the metal piece, the micro suction cups 204 can tightly adhere to the surface of the metal piece, and the suction effect further enhances the fixing effect of the metal piece, preventing the metal piece from loosening or shifting due to vibration, rotation and other movements in the subsequent pickling process. At the same time, since the micro suction cups 204 have a certain flexibility, they can adapt to the slight deformation and relative movement of the surface of the metal piece when the metal piece moves up and down, rotates and vibrates with the clamp, without causing excessive hindrance to the movement of the metal piece, ensuring that the metal piece can fully contact with the pickling liquid and improving the pickling efficiency. Figure 1 As shown in FIG. 1, the working surface of the clamping plate 203 is coated with a non-slip coating. The non-slip coating is made of polyurethane or polytetrafluoroethylene material to improve the non-slip ability. The working surface of the clamping plate 203 is coated with a non-slip coating made of polyurethane or polytetrafluoroethylene material. The polyurethane material has good wear resistance, elasticity and adhesion, and the polytetrafluoroethylene material has excellent lubricity and low friction coefficient. The non-slip coating formed by the two materials can increase the friction between the clamping plate 203 and the surface of the metal piece, further preventing the metal piece from slipping during clamping, improving the stability and reliability of clamping, and ensuring the smooth progress of the pickling process.

[0025] The lifting assembly 101 is a lifting cylinder, the rotation driving assembly 102 is an electric motor, the vibration generator 104 is a pneumatic vibrator or an electromagnetic vibrator, and the micro suction cups 204 are made of silicone or fluororubber.

[0026] Second embodiment

[0027] As shown in FIG. 1, the clamping assembly is arranged on the vibrating plate 105 of the pickling device 100. The clamping assembly includes a clamping frame 201, a plurality of clamping cylinders 202 and a plurality of clamping plates 203. The clamping frame 201 is fixedly connected with the vibrating plate 105, and the clamping cylinders 202 are arranged on the clamping frame 201. The movable part of each clamping cylinder 202 is fixedly arranged with a clamping plate 203 towards the center of the clamping frame 201. When it is necessary to clamp the metal piece, the movable part of the clamping cylinder 202 is extended to push the clamping plate 203 to move towards the center of the clamping frame 201. The plurality of clamping plates 203 jointly act on the metal piece from different directions to apply pressure to the metal piece, thereby achieving reliable clamping of the metal piece. This clamping method can accurately adjust the clamping force by controlling the stroke of the clamping cylinder 202 to adapt to metal pieces of different sizes and shapes. A plurality of micro suction cups 204 are arranged in a rectangular array on the working surface of the clamping plate 203 and are made of silicone or fluororubber. When clamping the metal piece, the micro suction cups 204 can tightly adhere to the surface of the metal piece, and the suction effect further enhances the fixing effect of the metal piece, preventing the metal piece from loosening or shifting due to vibration, rotation and other movements in the subsequent pickling process. At the same time, since the micro suction cups 204 have a certain flexibility, they can adapt to the slight deformation and relative movement of the surface of the metal piece when the metal piece moves up and down, rotates and vibrates with the clamp, without causing excessive hindrance to the movement of the metal piece, ensuring that the metal piece can fully contact with the pickling liquid and improving the pickling efficiency. Figure 2As shown, a plurality of reinforcing rods 3 are arranged between the bottom movable part of the lifting assembly 101 and the rotating drive assembly 102, and the two ends of the reinforcing rods 3 are fixedly connected with the movable part of the lifting assembly 101 and the rotating drive assembly 102 respectively, and the plurality of reinforcing rods 3 are annularly and uniformly distributed on the side of the lifting assembly 101, thereby improving the stability of the clamping assembly. During the operation of the clamp, the lifting assembly 101 drives the rotating drive assembly 102, the fixed plate 103, the vibrating plate 105 and the clamping assembly to perform lifting movement, and the rotating drive assembly 102 drives the metal piece on the clamping assembly to rotate. The two movements will make the entire clamp structure bear forces in different directions, such as vertical tension and pressure generated during lifting movement, torque generated during rotating movement, etc. These forces may cause deformation, shaking or even loosening of the connecting part between the lifting assembly 101 and the rotating drive assembly 102, thereby affecting the stability of the clamping assembly, causing the metal piece to deviate or shake during pickling, reducing the pickling effect or even causing safety accidents. The plurality of reinforcing rods 3 arranged between the bottom movable part of the lifting assembly 101 and the rotating drive assembly 102 have their two ends fixedly connected with the movable part of the lifting assembly 101 and the rotating drive assembly 102 respectively, and the plurality of reinforcing rods 3 are annularly and uniformly distributed on the side of the lifting assembly 101. This design makes the reinforcing rods 3 form a stable support structure, and when the clamp is subjected to various forces, the reinforcing rods 3 can uniformly disperse and transmit these forces.

[0028] The above are only specific embodiments of the present application, but the technical features of the present application are not limited thereto. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the same technical problem and achieve the same technical effect is also covered by the protection scope of the present application.

Claims

1. A jig for pickling treatment of a metal surface, comprising a lifting assembly (101), characterized in that: The movable part of the bottom of the lifting assembly (101) is fixedly connected with the output shaft of the rotating drive assembly (102), and the output shaft is fixedly connected with a fixed plate (103), the fixed plate (103) is provided with a vibrating plate (105) through a vibration generator (104), the bottom surface of the vibrating plate (105) is provided with a clamping assembly, and the working surface of the clamping assembly is uniformly provided with a plurality of micro suction cups (204).

2. The jig for pickling treatment of a metal surface according to claim 1, characterized by: The clamping assembly comprises a clamping frame (201) fixedly connected with the vibrating plate (105), a plurality of clamping cylinders (202) are arranged on the clamping frame (201), a clamping plate (203) is fixedly arranged on the movable part of the clamping cylinder (202) and faces the center of the clamping frame (201), and a plurality of micro suction cups (204) are arranged in a rectangular array on the working surface of the clamping plate (203).

3. The jig for pickling treatment of a metal surface according to claim 2, characterized in that: The working surface of the clamping plate (203) is coated with an anti-skid coating, and the anti-skid coating is a polyurethane or polytetrafluoroethylene material.

4. The jig for pickling treatment of a metal surface according to claim 1, characterized by: A plurality of reinforcing rods (3) are arranged between the bottom movable part of the lifting assembly (101) and the rotating drive assembly (102).

5. The jig for pickling treatment of a metal surface according to claim 4, characterized in that: The two ends of the reinforcing rod (3) are fixedly connected with the movable part of the lifting assembly (101) and the rotating drive assembly (102) respectively, and a plurality of reinforcing rods (3) are annularly and uniformly distributed on the side of the lifting assembly (101).

6. The jig for pickling treatment of a metal surface according to claim 1, wherein: The lifting assembly (101) is a lifting cylinder, and the rotating drive assembly (102) is a motor.

7. The jig for pickling treatment of a metal surface according to claim 1, wherein: The vibration generator (104) is a pneumatic vibrator or an electromagnetic vibrator, and the micro suction cup (204) is made of silica gel or fluorine rubber material.

Citation Information

Patent Citations

  • Efficient pickling device for metal surface

    CN222274712U