A device for treating the inner surface of a magnesium-aluminum alloy product

Abstract

This invention provides a surface treatment device for the inner cavity of magnesium-aluminum alloy products, including a tank. A servo motor is fixedly connected to the outer wall of the tank. A drive bevel gear is provided at the end of the output shaft of the servo motor. A rotating clamping device includes a rotating disk, two sliding blocks, and a mounting sleeve. The rotating disk is rotatably connected to the tank, and the mounting sleeve is fixedly connected to the center of the bottom surface of the rotating disk. A first bevel gear is fixedly connected to the outer wall of the mounting sleeve, and the first bevel gear meshes with the drive bevel gear. Two self-locking gas springs are installed on the bottom surface of the rotating disk. A flow pipe is rotatably installed at the bottom of the tank, passes through the mounting sleeve, extends above the rotating disk, and has nozzles arranged in an array along the outer periphery of the upper section of the flow pipe. This invention can stably and reliably clamp the workpiece and drive it to rotate, avoiding damage to precision structures caused by traditional rigid clamping. When the workpiece rotates, the flow pipe can rotate synchronously in the opposite direction, and grinding fluid, cleaning agent, and other media are sprayed from the nozzles to form a dynamic flushing coverage, improving spraying efficiency and better eliminating dead corners in the inner cavity surface treatment.

Description

Technical Field

[0001] This utility model belongs to the field of magnesium-aluminum alloy processing, and specifically relates to a device for surface treatment of the inner cavity of magnesium-aluminum alloy products. Background Technology

[0002] In the field of magnesium-aluminum alloy product processing, magnesium-aluminum alloys have excellent strength, rigidity and dimensional stability, making them ideal materials for manufacturing irregularly shaped internal cavities. They are widely used in aerospace, automobile manufacturing, precision instruments and other fields.

[0003] Surface treatment of the inner cavity of aluminum-magnesium alloy products is a key process that affects product performance and quality. However, in the existing technology, magnesium-aluminum alloy products are mostly lightweight products with fine machining and complex structures. Traditional rigid clamps are difficult to adapt to fit the products, which can easily lead to unstable workpiece clamping or surface damage. In addition, traditional single-axis rotary equipment can only drive the workpiece to rotate, and the treatment medium is mostly static spray or unidirectional flow, which is difficult to cover the complex dead corners of the inner cavity. This results in uneven surface roughness after treatment, requiring multiple reworks and low efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical solution adopted by this utility model to solve its technical problems is a surface treatment device for the inner cavity of magnesium-aluminum alloy products, including a tank (1) and a rotating clamping device (3) set in the tank (1).

[0005] The bottom of the tank (1) is provided with a discharge pipe (4) and a flow pipe (55). A servo motor (2) is fixedly connected to the outer wall of the tank (1). The output shaft of the servo motor (2) passes through the inside of the tank (1), and a drive bevel gear is provided at the end of the output shaft.

[0006] The rotating clamping device (3) includes a rotating disk (31), two sliding blocks (32), and a mounting sleeve (51). The rotating disk (31) is set inside the tank (1) through an annular protrusion on the inner wall of the tank (1). A through hole is provided in the center of the rotating disk (31) for the passage of the flow pipe (55). The top of the mounting sleeve (51) is fixedly connected to the center of the bottom surface of the rotating disk (31). The mounting sleeve (51) and the rotating disk (31) are coaxially arranged. A first bevel gear (52) is fixedly connected to the outer wall of the mounting sleeve (51). The first bevel gear (52) meshes with the driving bevel gear located below; two self-locking gas springs are installed on the bottom surface of the rotating disk (31). The two self-locking gas springs are arranged along the radial direction of the rotating disk (31) and symmetrical with through holes. A first sliding groove is opened on the rotating disk (31) corresponding to the self-locking gas spring. A sliding connecting plate is vertically fixedly connected to the bottom surface of the sliding block (32). The lower end of the sliding connecting plate passes through the first sliding groove and is fixedly connected to the end of the plug rod of the self-locking gas spring for clamping the bag processing workpiece.

[0007] The flow pipe (55) is rotatably installed at the bottom of the tank (1). The flow pipe (55) passes through the mounting sleeve (51) and the rotating disk (31) and extends to the top of the rotating disk (31). The flow pipe (55) is rotatably connected to the mounting sleeve (31). The flow pipe (55) is located on the upper side of the rotating disk (31) and has nozzles arranged in an array along the outer periphery.

[0008] The sliding block (32) is an arc-shaped block, and two extrusion blocks (33) are rotatably connected to the straight edge of the arc-shaped block, with the two extrusion blocks arranged side by side.

[0009] A contact block (34) is fixedly connected to the extrusion block (33), and the contact block is a rubber block.

[0010] Two sliding rods (36) are symmetrically arranged on the bottom surface of the rotating disk with respect to the center of the rotating disk. The two sliding rods (36) are arranged parallel to the self-locking gas spring. Sliding grooves are opened on the rotating disk corresponding to the sliding rods (36). Guide plates are fixedly connected to both sides of the bottom surface of the sliding block (32). The guide plates pass through the rotating plate and are slidably connected to the corresponding sliding rods (36), so that the sliding block (32) is straddling the two sliding rods.

[0011] A thrust ball bearing is provided on the annular boss of the tank body (1).

[0012] The lower end of the flow pipe (55) is equipped with a second bevel gear (53), which meshes with the upper drive bevel gear.

[0013] A turntable is mounted on the top of the flow tube (55) via a bearing.

[0014] An electric push rod is fixedly connected to the lower side of the top surface of the tank (1), and a positioning turntable is provided at the end of the electric push rod.

[0015] The beneficial effects of this utility model are that it can stably and reliably clamp the workpiece and drive it to rotate, avoiding the damage to the precision structure caused by traditional rigid clamping. When the workpiece rotates, the flow pipe can rotate in the opposite direction synchronously, and the grinding fluid, cleaning agent and other media are sprayed out from the nozzle to form a dynamic flushing coverage, improve the spraying efficiency, and better eliminate the dead corners of the inner cavity surface treatment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the fixing device of this utility model;

[0019] Figure 4This is a schematic diagram of the structure of the adjustment device of this utility model.

[0020] In the diagram: 1. Tank body; 2. Servo motor; 3. Rotary clamping device; 31. Rotary disk; 32. Sliding block; 33. Extrusion block; 34. Contact block; 35. Self-locking gas spring; 36. Slide rod; 37. Sliding connecting plate; 4. Discharge pipe; 51. Mounting sleeve; 52. First bevel gear; 53. Second bevel gear; 54. Drive bevel gear; 55. Flow pipe; 56. Discharge hole; 57. Output shaft. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0022] Example 1

[0023] like Figures 1-4 As shown, a surface treatment device for the inner cavity of a magnesium-aluminum alloy product includes a tank 1, a rotating clamping device 3 disposed inside the tank 1, a discharge pipe 4 for discharging the treatment medium and a flow pipe 55 for entering the treatment medium at the bottom of the tank 1, a servo motor 2 fixedly connected to the outer wall of the tank 1, the output shaft of the servo motor 2 penetrating into the interior of the tank 1, and a drive bevel gear 54 disposed at the end of the output shaft.

[0024] The rotating clamping device 3 includes a rotating disk 31, two sliding blocks 32, and a mounting sleeve 51. The rotating disk 31 is set inside the tank 1 through an annular boss on the inner wall of the tank 1. A thrust ball bearing is set on the annular boss to facilitate the rotation of the rotating disk 31. A through hole is set in the center of the rotating disk 31 for the passage of the flow pipe 55. The top of the mounting sleeve 51 is fixedly connected to the center of the bottom surface of the rotating disk 31. The mounting sleeve 51 and the rotating disk 31 are coaxially arranged. A first bevel gear 52 is fixedly connected to the outer wall of the mounting sleeve 51. The first bevel gear 52 meshes with a driving bevel gear located below, and the rotating disk 31 is driven to rotate through the driving bevel gear. Two self-locking gas springs 35 are installed on the bottom surface of the rotating disk 31. The two self-locking gas springs are arranged along the radial direction of the rotating disk 31 and are symmetrical about the through hole.

[0025] The rotating disk 31 has a first groove corresponding to the self-locking gas spring. The bottom surface of the sliding block 32 is vertically fixedly connected to a sliding connecting plate 37. The lower end of the sliding connecting plate 37 passes through the first groove and is fixedly connected to the end of the plug rod of the self-locking gas spring. It is used to clamp the bag to process the workpiece. In order to ensure the smooth operation of the sliding block 32, two sliding rods 36 are symmetrically arranged on the bottom surface of the rotating disk 31 with the center of the rotating disk. The two sliding rods 36 are arranged parallel to the self-locking gas spring. The rotating disk has a groove corresponding to the sliding rod 36. Guide plates are fixedly connected to both sides of the bottom surface of the sliding block 32. The guide plates pass through the rotating plate and are slidably connected to the corresponding sliding rods 36, so that the sliding block 32 is straddling the two sliding rods.

[0026] The sliding block 32 is an arc-shaped block with its straight edges facing each other. Two grooves are arranged side by side on the straight edges of the arc-shaped blocks, and pressing blocks 33 are installed on the grooves. A rotating shaft is vertically arranged at the rear of the pressing block 33, and the rotating shaft is rotatably connected to the upper and lower surfaces of the grooves. Preferably, the rear of the pressing block is an arc surface and the front is a horizontal surface. When the pressing block contacts the workpiece, its angle naturally adjusts adaptively as the sliding block 32 presses the workpiece, ensuring full contact with the workpiece. In order not to damage the workpiece, a contact block 34 made of rubber is fixedly connected to the pressing block 33. If the workpiece has a very complex shape, another pressing block can be designed on the pressing block 33, consistent with the connection structure between the pressing block 33 and the sliding block 32, to form a multi-level clamping structure.

[0027] The flow pipe 55 is rotatably installed at the bottom of the tank body 1. The flow pipe 55 passes through the mounting sleeve 51 and the rotating disk 31 and extends above the rotating disk 31. The flow pipe 55 is rotatably connected to the mounting sleeve 51. The upper section of the flow pipe 55 is arranged with nozzles along the outer periphery. The flow pipe 55 is connected to the medium pump at the outer end of the tank body through a universal joint. The lower end of the flow pipe 55 extends out of the mounting sleeve 51 and is equipped with a second bevel gear 53. The second bevel gear 53 meshes with the upper drive bevel gear.

[0028] In use, by rotating the clamping device 3, the magnesium-aluminum alloy product is placed in the center of the rotating disk 31. The self-locking gas spring 35 is adjusted to drive the sliding connecting plate 37 to move, so that the sliding block 32, which is fixedly connected to it, moves on the sliding rod 36 until the contact block 34 contacts the workpiece and continues to clamp until the pressing block 33 completes the self-adaptive adjustment according to the shape of the workpiece to complete the clamping of the workpiece. The self-locking gas spring 35 is locked. At this time, the servo motor can drive the rotating disk 31 and the flow pipe 55 to rotate simultaneously. The flow pipe 55 is installed on the tank body through a sealed bearing. Its lower end is connected to the medium pump through a universal joint, thereby realizing the coordinated movement of the workpiece rotation and the medium flow. The rotation of the flow pipe 55 causes the processing medium, such as grinding liquid, to be sprayed or flowed from the center of the inner cavity through the nozzle 56 to the surrounding area. With the synchronous rotation of the product, the inner cavity surface is uniformly treated. After the treatment is completed, the discharge pipe 4 is opened to discharge the waste liquid or medium, and the fixing device 3 is loosened to take out the product.

[0029] Example 2

[0030] To ensure the clamping effect of the workpiece, a turntable is installed at the top of the flow pipe 55 via a bearing. The turntable contacts the inner side of the top wall of the workpiece. An electric push rod is fixedly connected to the lower side of the top surface of the tank body 1. A positioning turntable is set at the end of the electric push rod. The positioning turntable contacts the outer side of the top wall of the workpiece, thereby forming an upper and lower clamping, which further improves the stability of the clamping.

[0031] Normal processing does not require excessively high rotation speeds. When necessary, the above structure can ensure the clamping stability of the workpiece.

Claims

1. A device for surface treatment of the inner cavity of magnesium-aluminum alloy products, characterized in that, Includes a tank body (1) and a rotating clamping device (3) disposed inside the tank body (1). The bottom of the tank (1) is provided with a discharge pipe (4) and a flow pipe (55). A servo motor (2) is fixedly connected to the outer wall of the tank (1). The output shaft of the servo motor (2) passes through the inside of the tank (1), and a drive bevel gear is provided at the end of the output shaft. The rotating clamping device (3) includes a rotating disk (31), two sliding blocks (32), and a mounting sleeve (51). The rotating disk (31) is set inside the tank (1) through an annular protrusion on the inner wall of the tank (1). A through hole is provided in the center of the rotating disk (31) for the passage of the flow pipe (55). The top of the mounting sleeve (51) is fixedly connected to the center of the bottom surface of the rotating disk (31). The mounting sleeve (51) and the rotating disk (31) are coaxially arranged. A first bevel gear (52) is fixedly connected to the outer wall of the mounting sleeve (51). The first bevel gear (52) meshes with the driving bevel gear located below; two self-locking gas springs are installed on the bottom surface of the rotating disk (31). The two self-locking gas springs are arranged along the radial direction of the rotating disk (31) and symmetrical with through holes. A first sliding groove is opened on the rotating disk (31) corresponding to the self-locking gas spring. A sliding connecting plate is vertically fixedly connected to the bottom surface of the sliding block (32). The lower end of the sliding connecting plate passes through the first sliding groove and is fixedly connected to the end of the plug rod of the self-locking gas spring for clamping the bag processing workpiece. The flow pipe (55) is rotatably installed at the bottom of the tank (1). The flow pipe (55) passes through the mounting sleeve (51) and the rotating disk (31) and extends to the top of the rotating disk (31). The flow pipe (55) is rotatably connected to the mounting sleeve (51). The flow pipe (55) is located on the upper side of the rotating disk (31) and has nozzles arranged in an array along the outer periphery.

2. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 1, characterized in that: The sliding block (32) is an arc-shaped block, and two extrusion blocks (33) are rotatably connected to the straight edge of the arc-shaped block, with the two extrusion blocks arranged side by side.

3. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 2, characterized in that: A contact block (34) is fixedly connected to the extrusion block (33), and the contact block is a rubber block.

4. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 1, characterized in that: Two sliding rods (36) are symmetrically arranged on the bottom surface of the rotating disk with respect to the center of the rotating disk. The two sliding rods (36) are arranged parallel to the self-locking gas spring. Sliding grooves are opened on the rotating disk corresponding to the sliding rods (36). Guide plates are fixedly connected to both sides of the bottom surface of the sliding block (32). The guide plates pass through the rotating plate and are slidably connected to the corresponding sliding rods (36), so that the sliding block (32) is straddling the two sliding rods.

5. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 1, characterized in that: A thrust ball bearing is provided on the annular boss of the tank body (1).

6. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 1, characterized in that: The lower end of the flow pipe (55) is equipped with a second bevel gear (53), which meshes with the upper drive bevel gear.

7. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 1, characterized in that: A turntable is mounted on the top of the flow tube (55) via a bearing.

8. The device for surface treatment of the inner cavity of a magnesium-aluminum alloy product according to claim 1, characterized in that: An electric push rod is fixedly connected to the lower side of the top surface of the tank (1), and a positioning turntable is provided at the end of the electric push rod.

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