A surface treatment equipment for magnesium alloy die castings

Abstract

This utility model discloses a surface treatment device for magnesium alloy die castings. The device includes an immersion tank mounted on a frame, a workpiece placement plate inside the immersion tank, and multiple holes formed on the surface of the workpiece placement plate. A driving mechanism connected to the workpiece placement plate is mounted on the frame, enabling the driving mechanism to move the workpiece placement plate vertically. Multiple push rods are provided at the bottom of the immersion tank, each push rod corresponding to one of the holes, allowing the push rods to pass through the holes. This invention solves the problem in existing passivation treatment devices where, during use, the bottom surface of the workpiece cannot fully contact the passivation liquid at the contact point with the placement frame, resulting in incomplete passivation of the bottom surface.

Description

Technical Field

[0001] This utility model relates to the field of magnesium alloy casting processing, specifically to a surface treatment device for magnesium alloy die castings. Background Technology

[0002] Magnesium alloy castings require passivation treatment to form a denser, more stable, and more adhesive compound film on their surface, improving the product's appearance quality. For example, Chinese patent CN217948260U provides a passivation treatment device, which includes an immersion tank and a cover frame. The cover frame is movably and sealingly fitted onto the outside of the immersion tank, and two connecting plates are fixedly connected to the top inner wall of the cover frame. A common placement frame is fixedly connected to one side of the two connecting plates that are close to each other. Vertical plates are fixedly installed on both sides of the bottom of the cover frame, and a horizontal plate is fixedly installed at the bottom of the vertical plates. A threaded hole is opened at the top of the horizontal plate. In such existing passivation treatment devices, when the workpiece is placed in the placement frame, the contact area between the bottom surface of the workpiece and the placement frame cannot fully contact the passivation liquid, resulting in incomplete passivation of the bottom surface and affecting the passivation quality of the product surface. Utility Model Content

[0003] The purpose of this invention is to provide a surface treatment device for magnesium alloy die castings, which solves the problem in the existing passivation treatment device that, when the workpiece is placed in the placement frame, the bottom surface of the workpiece cannot fully contact the passivation liquid, resulting in incomplete passivation of the bottom surface.

[0004] To achieve the above objectives, this utility model provides a surface treatment equipment for magnesium alloy die castings. The surface treatment equipment for magnesium alloy die castings includes an immersion tank set on a frame, a workpiece placement plate set inside the immersion tank, and multiple holes formed on the surface of the workpiece placement plate.

[0005] The frame is provided with a driving mechanism connected to the workpiece placement plate, so that the driving mechanism can drive the workpiece placement plate to move in the vertical direction.

[0006] The bottom of the soaking tank is provided with multiple top rods, each of which corresponds to one of the holes, allowing the top rods to pass through the holes.

[0007] Preferably, the driving mechanism includes a cylinder mounted on the frame, and the piston rod of the cylinder is connected to the workpiece placement plate via a U-shaped rod.

[0008] Preferably, the soaking tank is provided with a plurality of sliding rods, and the edge of the workpiece placement plate is formed with sliding holes, through which the sliding rods pass.

[0009] Preferably, mounting holes are provided on both sides of the workpiece placement plate, and a screw is provided at the end of the U-shaped rod away from the piston rod. The screw passes through the mounting hole and is tightened with a lock nut.

[0010] Preferably, the bottom of the soaking tank is connected to a base plate by a screw assembly, and the plurality of top rods are fixed to the base plate.

[0011] Preferably, the bottom of the soaking tank is connected to a drain pipe, and a valve is installed on the drain pipe.

[0012] This utility model provides a surface treatment device for magnesium alloy die castings. The device includes an immersion tank mounted on a frame, a workpiece placement plate inside the immersion tank, and multiple holes formed on the surface of the workpiece placement plate. A driving mechanism connected to the workpiece placement plate is mounted on the frame, enabling the driving mechanism to move the workpiece placement plate vertically. Multiple push rods are provided at the bottom of the immersion tank, each push rod corresponding to one of the holes, allowing the push rods to pass through the holes. Initially, the workpiece placement plate is located above the immersion tank. The workpiece is placed on it, and the driving mechanism moves the workpiece placement plate downwards for a first stroke, at which point the workpiece placement plate is above the push rods. After the workpiece is immersed in the passivation solution for a certain period of time, the driving mechanism moves the workpiece placement plate downwards for a second stroke, at which point the push rods pass through the holes on the workpiece placement plate to lift the workpiece. This solves the problem that the contact area between the bottom surface of the workpiece and the placement frame cannot fully contact the passivation solution, resulting in incomplete passivation of the bottom surface and affecting the passivation quality of the product surface.

[0013] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a structural diagram of the magnesium alloy die-casting surface treatment equipment provided by this utility model;

[0016] Figure 2 This is an internal structural diagram of the magnesium alloy die-casting surface treatment equipment provided by this utility model;

[0017] Figure 3 This is a cross-sectional view of the magnesium alloy die-casting surface treatment equipment provided by this utility model;

[0018] Figure 4 yes Figure 3Enlarged view of part A in the middle.

[0019] Explanation of reference numerals in the attached figures

[0020] 1-Frame; 2-Cylinder; 3-U-shaped rod; 4-Soaking tank; 5-Workpiece placement plate; 6-Slide rod; 7-Valve; 8-Top rod; 9-Base plate; 10-Screw assembly; 11-Locking nut. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0022] like Figure 1-4 As shown: This utility model provides a surface treatment equipment for magnesium alloy die castings. The surface treatment equipment for magnesium alloy die castings includes an immersion tank 4 set on a frame 1. A workpiece placement plate 5 is set inside the immersion tank 4. The surface of the workpiece placement plate 5 has multiple holes. A driving mechanism connected to the workpiece placement plate 5 is set on the frame 1, so that the driving mechanism can drive the workpiece placement plate 5 to move in the vertical direction. A plurality of push rods 8 are set at the bottom of the immersion tank 4. The plurality of push rods 8 correspond one-to-one with the plurality of holes, so that the push rods 8 can pass through the holes. In the initial state, the workpiece placement plate is located above the immersion tank. The workpiece is placed on it, and the drive mechanism drives the workpiece placement plate to move downward for the first stroke. At this time, the workpiece placement plate is above the push rod. After the workpiece is immersed in the passivation solution for a certain period of time, the drive mechanism drives the workpiece placement plate to move downward for the second stroke. At this time, the push rod passes through the hole in the workpiece placement plate to lift the workpiece. This solves the problem that the contact point between the bottom surface of the workpiece and the placement frame cannot fully contact the passivation solution, resulting in incomplete passivation of the bottom surface and affecting the passivation quality of the product surface.

[0023] In a preferred embodiment of this utility model, in order to facilitate the displacement of the workpiece placement plate, the driving mechanism includes a cylinder 2 disposed on the frame 1, and the piston rod of the cylinder 2 is connected to the workpiece placement plate 5 through a U-shaped rod 3.

[0024] In a preferred embodiment of this utility model, in order to limit the displacement of the workpiece placement plate and make its displacement more stable, a plurality of sliding rods 6 are provided in the soaking tank 4, and sliding holes are formed on the edge of the workpiece placement plate 5, through which the sliding rods 6 pass.

[0025] In a preferred embodiment of this utility model, mounting holes are provided on both sides of the workpiece placement plate 5, and a screw is provided at the end of the U-shaped rod 3 away from the piston rod. The screw passes through the mounting hole and is tightened with a locking nut 11. The bottom of the soaking tank 4 is connected to a base plate 9 by a screw assembly 10, and multiple top rods 8 are fixed on the base plate 9. Depending on the size of the workpiece, workpiece placement plates with different hole sizes and numbers can be replaced to better lift the workpiece during soaking.

[0026] In a preferred embodiment of this utility model, in order to facilitate the discharge of the soaking solution, the bottom of the soaking tank 4 is connected to a drain pipe, and a valve 7 is provided on the drain pipe.

[0027] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0028] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0029] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A surface treatment device for magnesium alloy die-casting parts, characterized in that, The magnesium alloy die casting surface treatment equipment includes an immersion tank (4) set on a frame (1), and a workpiece placement plate (5) is set inside the immersion tank (4). The surface of the workpiece placement plate (5) has multiple holes. The platform (1) is provided with a driving mechanism connected to the workpiece placement plate (5), so that the driving mechanism can drive the workpiece placement plate (5) to move in the vertical direction; The bottom of the soaking tank (4) is provided with a plurality of top rods (8), and the plurality of top rods (8) correspond one-to-one with the plurality of holes, so that the top rods (8) can pass through the holes.

2. The surface treatment equipment for magnesium alloy die castings according to claim 1, characterized in that, The driving mechanism includes a cylinder (2) mounted on the frame (1), and the piston rod of the cylinder (2) is connected to the workpiece placement plate (5) via a U-shaped rod (3).

3. The surface treatment equipment for magnesium alloy die castings according to claim 2, characterized in that, The soaking tank (4) is provided with a plurality of slide rods (6), and the edge of the workpiece placement plate (5) is formed with sliding holes, through which the slide rods (6) pass.

4. The surface treatment equipment for magnesium alloy die castings according to claim 3, characterized in that, The workpiece placement plate (5) has mounting holes on both sides. The U-shaped rod (3) has a screw at the end away from the piston rod. The screw passes through the mounting hole and is tightened with a lock nut (11).

5. The surface treatment equipment for magnesium alloy die castings according to claim 4, characterized in that, The bottom of the soaking tank (4) is connected to a base plate (9) by a screw assembly (10), and a plurality of the top rods (8) are fixed on the base plate (9).

6. The surface treatment equipment for magnesium alloy die castings according to claim 5, characterized in that, The bottom of the soaking tank (4) is connected to a drain pipe, and a valve (7) is installed on the drain pipe.

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