A metal surface treatment processing sand blasting jig

Abstract

This utility model discloses a sandblasting fixture for metal surface treatment, relating to the field of fixture technology. The utility model includes a rotating mechanism with a rotating rod inside. A support rod is fixedly connected to the top of the rotating mechanism, and a support airbag is provided at the top of the support rod. A first protective component is provided on the surface of the support rod, including a first electromagnet disposed on the surface of the support rod. This utility model uses the first electromagnet to attract a semi-circular shielding plate made of magnetically conductive material after energization, forming a physical barrier around the support rod. A rubber ring is fixed to the side of the shielding plate in contact with the workpiece. The sealed structure formed by the shielding plate and the rubber ring effectively prevents used sand from entering the workpiece, thereby protecting the support airbag that holds the workpiece in place. A suction cup is connected to an external negative pressure source through a suction tube and a negative pressure tube to continuously attract sand that has drifted to the vicinity of the fixture and discharge it through the suction tube.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, and in particular relates to a metal surface treatment sandblasting fixture. Background Technology

[0002] Sandblasting is a process that uses high-speed jets of abrasive particles (shot) to impact metal surfaces, achieving rust removal, oxide layer removal, roughening, or cleaning. Its core principle is to utilize the kinetic energy of the shot to physically treat the workpiece surface, and it is widely used in the automotive, aerospace, and mold manufacturing industries. Traditional sandblasting fixtures are mainly used to fix the workpiece and coordinate with rotating or moving mechanisms to ensure uniform sandblasting. However, with increasing demands for precision machining, the particle size of the shot used in sandblasting has gradually decreased, causing the shot to easily penetrate internal moving parts through fixture gaps, resulting in component wear, jamming, and shortened equipment lifespan.

[0003] Traditional sandblasting fixtures have the following drawbacks in their protective design: ordinary baffles or sealing rings are insufficient to prevent the penetration of fine sand particles, which accelerate gear wear when they enter the rotating mechanism. While multi-layer protective covers or labyrinth structures can reduce sand particle intrusion, they are cumbersome to disassemble and assemble, affecting work efficiency. Therefore, we provide a metal surface treatment sandblasting fixture to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a metal surface treatment sandblasting fixture. By setting up a first protective component and a second protective component, it solves the problem that existing ordinary baffles or sealing rings are difficult to prevent the penetration of fine sand particles, which accelerate gear wear when sand particles enter the rotating mechanism. Although multi-layer protective covers or labyrinth structures can reduce sand particle intrusion, they are cumbersome to disassemble and assemble, affecting work efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to a metal surface treatment sandblasting fixture, comprising a rotating mechanism, an internal rotating rod, a support rod fixedly connected to the top of the rotating mechanism, a support airbag at the top of the support rod, a first protective component on the surface of the support rod, the first protective component comprising a first electromagnet disposed on the surface of the support rod, a shielding plate magnetically attracted to the surface of the first electromagnet, and a suction cup fixedly connected to the surface of the support rod, and a second protective component disposed at the bottom of the surface of the support rod, the second protective component comprising a second electromagnet disposed on the surface of the support rod, and a shielding cover magnetically attracted to the surface of the second electromagnet.

[0007] The present invention is further configured such that the rotating mechanism includes a rotating box disposed at the bottom of the support rod, a drive motor fixedly connected inside the rotating box, a drive gear fixedly connected to the output end of the drive motor, a driven gear meshing on the surface of the drive gear, the rotating rod fixedly connected inside the driven gear, and the bottom of the support rod fixedly connected to the top of the rotating rod.

[0008] The present invention is further configured such that both the rotating rod and the support rod are hollow, an air supply pipe is fixedly connected inside the support rod, the top of the air supply pipe is connected to the support airbag, a fixing plate is fixedly connected to the top of the support rod, and the support airbag is fixedly connected to one side of the fixing plate. The number of support airbags is three.

[0009] The present invention is further configured such that the shielding plate is semi-circular in shape, the shielding plate is made of magnetic material, and a rubber ring is fixedly connected to the side of the shielding plate away from the first electromagnet.

[0010] The present invention is further configured such that a suction tube is fixedly connected inside the support rod, a negative pressure tube is connected to the surface of the suction tube, the end of the negative pressure tube away from the suction tube is connected to the suction cup, and a negative pressure suction groove is formed on the surface of the suction cup.

[0011] The present invention is further configured such that the support rod is movably connected to the rotating mechanism via a sealed bearing, and the bottom of the rotating rod is movably connected to the bottom of the rotating mechanism via a sealed bearing.

[0012] The present invention is further configured such that the number of shields is two, the shield material is a magnetic material, and the shield shape is a semi-circular ring.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model uses a first electromagnet to attract a semi-circular shield made of magnetic material after being energized, forming a physical barrier around the support rod; a rubber ring is fixed on the side of the shield that contacts the workpiece, and the sealed structure formed by the shield and the rubber ring can effectively prevent the used sand shot from entering the workpiece to be processed, thereby protecting the support airbag that fixes the workpiece to be processed. The suction cup is connected to an external negative pressure source through a suction tube and a negative pressure tube, continuously adsorbing the sand shot that drifts to the area around the fixture, and then discharging it through the suction tube.

[0015] 2. This utility model uses a second electromagnet to attract two semi-circular shields, covering the connection between the support rod and the rotating mechanism, thus blocking the intrusion path of sand shot. The electromagnetic adsorption design allows the shields and cover to be quickly disassembled and assembled without tools, improving maintenance efficiency. Through the synergistic design of electromagnetic adsorption protection, negative pressure dynamic cleaning, flexible clamping, and rotary sealing, this utility model effectively solves the key problem of small-diameter sand shot easily intruding into the fixture. It combines high-efficiency protection, rapid maintenance, and high adaptability, significantly improving the reliability and economy of sandblasting.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional view of a metal surface treatment sandblasting fixture.

[0019] Figure 2 A perspective view of the first protective component in a metal surface treatment sandblasting fixture.

[0020] Figure 3 This is a perspective view of the second protective component in a metal surface treatment sandblasting fixture.

[0021] Figure 4 This is a three-dimensional view of a shielding plate and a rubber ring in a metal surface treatment sandblasting fixture.

[0022] Figure 5 This is a three-dimensional view of a suction cup in a metal surface treatment sandblasting fixture.

[0023] In the attached diagram: 1. Rotating mechanism; 2. Rotating rod; 3. Support rod; 4. Support airbag; 5. First protective component; 501. First electromagnet; 502. Shielding plate; 503. Suction cup; 6. Second protective component; 601. Second electromagnet; 602. Shielding cover; 7. Air supply pipe; 8. Fixing plate; 9. Rubber ring; 10. Suction tube; 11. Negative pressure pipe; 12. Negative pressure suction groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0026] Please see Figures 1-5 This utility model is a metal surface treatment sandblasting fixture, including a rotating mechanism 1, a rotating rod 2 inside the rotating mechanism 1, a support rod 3 fixedly connected to the top of the rotating mechanism 1, a support airbag 4 on the top of the support rod 3, the three support airbags 4 being arranged in a ring, a first protective component 5 on the surface of the support rod 3, the first protective component 5 including a first electromagnet 501 fixedly connected to the surface of the support rod 3, a shielding plate 502 magnetically attracted to the surface of the first electromagnet 501, and a suction cup 503 fixedly connected to the surface of the support rod 3, a second protective component 6 on the bottom of the surface of the support rod 3, the second protective component 6 including a second electromagnet 601 fixedly connected to the surface of the support rod 3, and a shielding cover 602 magnetically attracted to the surface of the second electromagnet 601.

[0027] Specifically, through the setting of the first protective component 5, after the first electromagnet 501 is energized, it attracts a semi-circular shield 502 made of magnetically conductive material, forming a physical barrier around the support rod 3. The shield 502 is fixed with a rubber ring 9 on the side in contact with the workpiece. After the rubber ring 9 comes into contact with the workpiece to be processed, a sealed structure is formed by the shield and the rubber ring 9, preventing sand from entering the workpiece to be processed and causing wear to the support airbag 4. The suction cup 503 is connected to the suction tube 10 through the negative pressure tube 11, actively attracting sand that drifts to the area around the fixture, preventing it from depositing in the gaps. Through the setting of the second protective component 6, the second electromagnet 601 attracts two semi-circular magnetically conductive shields 602, covering the connection between the support rod 3 and the rotating mechanism 1. After the shields 602 are closed, they form a complete ring, blocking sand from entering from the gap between the top of the rotating mechanism 1 and the support rod 3. Specific Implementation Example 2

[0029] Please see Figures 1-5Based on the first specific embodiment, the rotating mechanism 1 includes a rotating box fixedly connected to the bottom of the support rod 3, a drive motor fixedly connected inside the rotating box, a drive gear fixedly connected to the output end of the drive motor, a driven gear meshing on the surface of the drive gear, a rotating rod 2 fixedly connected inside the driven gear, the bottom of the support rod 3 fixedly connected to the top of the rotating rod 2, both the rotating rod 2 and the support rod 3 being hollow designs, an air supply pipe 7 fixedly connected inside the support rod 3, the top of the air supply pipe 7 communicating with the support airbag 4, a fixing plate 8 fixedly connected to the top of the support rod 3, three support airbags 4 fixedly connected to one side of the fixing plate 8, and a semi-circular shape for the baffle plate 502, the material of the baffle plate 502 being... The shielding plate 502 is made of magnetic material and has a rubber ring 9 fixedly connected to the side away from the first electromagnet 501. A suction tube 10 is fixedly connected inside the support rod 3. A negative pressure tube 11 is connected to the surface of the suction tube 10. The end of the negative pressure tube 11 away from the suction tube 10 is connected to the suction cup 503. A negative pressure suction groove 12 is opened on the surface of the suction cup 503. The bottom of the suction tube 10 and the air supply tube 7 both extend to the bottom of the rotating rod 2. The bottom of the suction tube 10 and the air supply tube 7 are both connected to a rotary joint. The support rod 3 is movably connected to the rotating mechanism 1 through a sealed bearing. The bottom of the rotating rod 2 is movably connected to the bottom of the rotating mechanism 1 through a sealed bearing. There are two shielding covers 602. The shielding cover 602 is made of magnetic material and is semi-circular in shape.

[0030] Specifically, the rotating mechanism 1 is used to rotate the workpiece during sandblasting, improving the uniformity of the sandblasting process. The air supply pipe 7 is used to supply air to the support airbag 4 and adjust its size. The magnetically conductive material shielding plate 502 is used to magnetically attract the two semi-circular shielding plates 502 to the first electromagnet 501, thus fixing the shielding plates 502. The rubber ring 9 ensures a seal at the bottom of the workpiece while preventing the magnetic attraction on the first electromagnet 501 from being blocked by the shielding plate. The plate 502 conducts the material to the workpiece to be processed. Through the arrangement of the suction tube 10, the negative pressure tube 11 and the suction cup 503, the sand shot scattered around the rotating mechanism 1 is sucked in by the suction cup 503 through the negative pressure, so as to prevent the sand shot from entering the interior of the rotating mechanism 1 and causing wear to the components. The setting of the sealed bearing enhances the protection effect and prevents the sand shot from entering the rotating mechanism 1. The setting of the magnetic material shield 602 allows it to be directly fixed to the surface of the second electromagnet 601 by magnetic attraction, which facilitates quick assembly and disassembly and further enhances the protection effect.

[0031] The operation process of this embodiment is as follows: Select a corresponding size of baffle plate 502 according to the inner diameter of the workpiece to be processed, and put the baffle plate 502 into contact with the first electromagnet 501. After the first electromagnet 501 is energized, the first electromagnet 501 magnetically attracts the baffle plate 502, and the workpiece to be processed is placed on the surface of the support airbag 4. The external air pump is connected to the air supply pipe 7 through a rotary joint, and the air supply pipe 7 inflates the support airbag 4. When the airbag is inflated, it supports and limits the workpiece to be processed inside.

[0032] Then, the shield 602 is brought into contact with the second electromagnet 601, and the second electromagnet 601 is energized. The second electromagnet 601 magnetically attracts the shield 602, at which point the shield 602 is installed. The external sandblasting equipment sprays sand shot onto the surface of the workpiece to be processed. The sand shot treats the surface of the workpiece to be processed. The baffle plate 502 and the rubber ring 9 prevent the sand shot from entering the interior of the workpiece to be processed, thereby protecting the support airbag 4.

[0033] The shield 602 and the sealed bearing protect the rotating mechanism 1, preventing used sand from entering the interior of the rotating mechanism 1 and preventing the sand from causing wear on the components, thereby protecting the components inside the rotating mechanism 1.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sand-blasting jig for metal surface treatment processing, comprising a rotating mechanism (1), characterized in that: The rotating mechanism (1) is provided with a rotating rod (2) inside, and a support rod (3) is fixedly connected to the top of the rotating mechanism (1). A support airbag (4) is provided on the top of the support rod (3). The support rod (3) is provided with a first protective component (5), which includes a first electromagnet (501) provided on the surface of the support rod (3), a shield (502) magnetically attracted to the surface of the first electromagnet (501), and a suction cup (503) fixedly connected to the surface of the support rod (3). The support rod (3) has a second protective component (6) at the bottom of its surface. The second protective component (6) includes a second electromagnet (601) disposed on the surface of the support rod (3) and a shield (602) magnetically attracted to the surface of the second electromagnet (601).

2. The metal surface treatment process blasting jig according to claim 1, wherein The rotating mechanism (1) includes a rotating box disposed at the bottom of the support rod (3), a drive motor fixedly connected inside the rotating box, a drive gear fixedly connected to the output end of the drive motor, a driven gear meshing on the surface of the drive gear, the rotating rod (2) fixedly connected inside the driven gear, and the bottom of the support rod (3) fixedly connected to the top of the rotating rod (2).

3. The metal surface treatment process blasting fixture of claim 1, wherein, Both the rotating rod (2) and the support rod (3) are hollow. An air supply pipe (7) is fixedly connected inside the support rod (3). The top of the air supply pipe (7) is connected to the support airbag (4). A fixing plate (8) is fixedly connected to the top of the support rod (3). The support airbag (4) is fixedly connected to one side of the fixing plate (8). There are three support airbags (4).

4. The metal surface treatment process blasting fixture of claim 1, wherein, The shielding plate (502) is semi-circular in shape and is made of magnetic material. A rubber ring (9) is fixedly connected to the side of the shielding plate (502) away from the first electromagnet (501).

5. The metal surface treatment process blasting fixture of claim 1, wherein, The support rod (3) is fixedly connected to a suction tube (10), and a negative pressure tube (11) is connected to the surface of the suction tube (10). The end of the negative pressure tube (11) away from the suction tube (10) is connected to the suction cup (503), and a negative pressure suction groove (12) is opened on the surface of the suction cup (503).

6. The metal surface treatment process blasting fixture of claim 1, wherein, The support rod (3) is movably connected to the rotating mechanism (1) through a sealed bearing, and the bottom of the rotating rod (2) is movably connected to the bottom of the rotating mechanism (1) through a sealed bearing.

7. The metal surface treatment process blasting fixture of claim 1, wherein, The number of shields (602) is two, the material of the shields (602) is a magnetic material, and the shape of the shields (602) is a semi-circular ring.

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