A shot blasting device for aluminum castings

Abstract

This utility model discloses a shot blasting device for aluminum castings, specifically relating to the field of aluminum casting processing technology. It includes a fixed base, a semi-arc screen frame rotatably mounted on the upper front side of the inner cavity of the fixed base, an inclined frame mounted on the upper rear side of the inner cavity of the fixed base, and a conveying component disposed at the center of the opening of the inclined frame on the rear side of the inner cavity of the fixed base. A reciprocating drive component is disposed on the outer surface of the fixed base in the height direction. This shot blasting device for aluminum castings eliminates the need for fixing the aluminum casting. The reciprocating drive component drives the aluminum casting within the semi-arc screen frame to dynamically interact with the shot during reciprocating rotation. The rotation of the semi-arc screen frame ensures full contact and collision between the aluminum casting and the shot. Under the combined action of centrifugal force and gravity, the aluminum casting continuously changes its posture during movement, allowing the shot to impact the surface of the aluminum casting without blind spots. This efficiently completes deburring, surface strengthening, and finishing processes, significantly improving processing efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of aluminum casting processing technology, and in particular to a shot blasting device for aluminum castings. Background Technology

[0002] In modern industrial production, aluminum castings are widely used in aerospace, automobile manufacturing, machining and other fields due to their excellent properties such as light weight, high strength and corrosion resistance. Shot blasting, as an important process in the surface treatment of aluminum castings, can not only effectively remove impurities such as oxide scale, sand, and oil stains from the surface of aluminum castings by impacting the surface with high-speed shot, but also improve the surface smoothness and fatigue strength.

[0003] In the manufacturing process of aluminum castings, shot blasting is a crucial step in ensuring surface quality. Hook-type shot blasting devices have found some application in the surface treatment of aluminum castings due to their relatively simple operation. However, with the increasing demand for large aluminum castings in industrial production, hook-type shot blasting devices have revealed significant limitations.

[0004] Hook-type shot blasting equipment mainly relies on hooks to suspend aluminum castings for shot blasting. However, this fixing method is difficult to effectively fix large aluminum castings. Due to their large size and heavy weight, large aluminum castings are prone to swaying during suspension, making precise positioning impossible. This results in uneven impact of the shot on the casting surface during shot blasting, affecting the cleaning effect and surface quality. Utility Model Content

[0005] The main objective of this invention is to provide a shot blasting device for aluminum castings, which can effectively solve the problems mentioned above.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A shot blasting device for aluminum castings includes a fixed base with an open top. A semi-arc screen frame is rotatably mounted on the upper front side of the inner cavity of the fixed base. An inclined frame is mounted on the upper rear side of the inner cavity of the fixed base. The bottom slope of the inclined frame is located near the upper port of the semi-arc screen frame. A conveying component is located at the center of the opening of the inclined frame on the rear side of the inner cavity of the fixed base. A reciprocating drive component is located on the outer surface of the fixed base in the height direction.

[0008] Preferably, the reciprocating drive assembly includes a connecting frame, a gear frame, and a guide rail. The connecting frame and the gear frame are respectively fixedly installed on the end face of the fixed seat in the height direction. A gear is rotatably installed on the gear frame, and the gear is fixedly connected to the rotating shaft of the semi-arc screen frame.

[0009] Preferably, an electric cylinder is fixedly installed on the connecting frame, the guide rail is fixedly installed on the lower side of the gear frame at the height direction end face of the fixed seat, a rack that meshes with the gear is slidably installed on the guide rail, and the output end of the electric cylinder is fixedly connected to the rear end of the rack.

[0010] Preferably, the conveying assembly includes a guide seat, a servo motor, and two conveying rollers. The guide seat is fixedly installed on the front side of the bottom end of the inner cavity of the fixed seat. The guide seat is located on the lower side of the inclined frame. The top of the guide seat is sloping with a higher front and lower back. Two guide strips are symmetrically installed on the top of the guide seat.

[0011] Preferably, the two conveying rollers are rotatably mounted between the upper and lower sides of the rear side of the inner cavity of the fixed seat, the servo motor is fixedly mounted on the lower side of the outer surface of the fixed seat in the height direction, and the output shaft of the servo motor is fixedly connected to the rotating seat of the upstream conveying roller through a coupling.

[0012] Preferably, a conveyor belt is rotatably connected between the two conveyor rollers, the bottom slope direction of the conveyor belt is close to the bottom slope direction of the guide seat, the bottom slope height of the conveyor belt is lower than the bottom slope height of the guide seat, and anti-leakage strips are fixedly installed at equal intervals on the outer surface of the conveyor belt.

[0013] Preferably, pulleys are fixedly mounted on the rotating shafts of the two conveying rollers, and a drive belt is connected between the two pulleys.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model does not require fixing the aluminum casting. The aluminum casting and the shot are dynamically interacted in the reciprocating rotation of the semi-arc screen frame by the reciprocating drive component. The rotation of the semi-arc screen frame allows the aluminum casting and the shot to fully contact and collide. Under the combined action of centrifugal force and gravity, the aluminum casting continuously changes its posture during the movement. The shot can impact the surface of the aluminum casting from all directions without dead angles, efficiently completing deburring, surface strengthening and finishing, significantly improving processing efficiency and quality.

[0016] 2. This utility model uses an inclined frame and a conveying component to re-transport the shot that falls from the semi-arc screen frame back into the semi-arc screen frame, thus achieving a highly efficient and stable closed-loop shot circulation, improving shot blasting efficiency and economy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the entire utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the semi-arc screen frame and the reciprocating drive assembly in this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged view of node A in the middle;

[0021] Figure 5 This is a side elevation view of the guide seat in this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the tilting frame and the conveying assembly in this utility model.

[0023] In the diagram: 1. Fixed base; 2. Semi-arc screen frame; 3. Reciprocating drive assembly; 31. Connecting frame; 32. Gear frame; 33. Gear; 34. Guide rail; 35. Rack; 36. Electric cylinder; 4. Inclined frame; 5. Conveying assembly; 51. Guide seat; 511. Guide bar; 52. Conveying roller; 53. Conveying belt; 531. Leak-proof strip; 54. Servo motor; 55. Pulley; 551. Transmission belt. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1-6 As shown, a shot blasting device for aluminum castings includes a fixed base 1 with an open top. A semi-arc screen frame 2 is rotatably mounted on the upper front side of the inner cavity of the fixed base 1. An inclined frame 4 is mounted on the upper rear side of the inner cavity of the fixed base 1. The bottom slope of the inclined frame 4 is located near the upper port of the semi-arc screen frame 2. A conveying component 5 is provided in the middle of the opening of the inclined frame 4 on the rear side of the inner cavity of the fixed base 1. A reciprocating drive component 3 is provided in the height direction of the outer surface of the fixed base 1.

[0026] In practical use, this solution uses the reciprocating drive component 3 to drive the aluminum castings and projectiles in the semi-arc screen frame 2 to form a dynamic interaction during reciprocating rotation. The rotation of the semi-arc screen frame 2 allows the aluminum castings and projectiles to fully contact and collide. Under the combined action of centrifugal force and gravity, the aluminum castings continuously change their posture during the movement. The projectiles can impact the surface of the aluminum castings from all directions without dead angles, efficiently completing deburring, surface strengthening and finishing. The tilting frame 4 and the conveying component 5 work together to re-transport the projectiles that fall into the semi-arc screen frame 2 back into the semi-arc screen frame 2, thus achieving a highly efficient and stable closed-loop circulation of projectiles.

[0027] Specifically, the reciprocating drive assembly 3 includes a connecting frame 31, a gear frame 32, and a guide rail 34. The connecting frame 31 and the gear frame 32 are respectively fixedly installed on the end face of the fixed base 1 in the height direction. A gear 33 is rotatably installed on the gear frame 32, and the gear 33 is fixedly connected to the rotating shaft of the semi-arc screen frame 2.

[0028] An electric cylinder 36 is fixedly installed on the connecting frame 31. A guide rail 34 is fixedly installed on the end face of the fixed base 1 in the height direction, which is located below the gear frame 32. A rack 35 that meshes with the gear 33 is slidably installed on the guide rail 34. The output end of the electric cylinder 36 is fixedly connected to the rear end of the rack 35.

[0029] When the electric cylinder 36 is started, the output shaft of the electric cylinder 36 pushes the rack 35 on the guide rail 34 to slide back and forth. During this process, the rack 35 drives the semi-arc screen frame 2 to tilt and rotate back and forth through the gear 33, so that the shot placed in the semi-arc screen frame 2 can fully contact and collide with the aluminum casting, thereby causing the shot to rub against the outer surface of the aluminum casting to treat its surface.

[0030] Furthermore, the conveying assembly 5 includes a guide seat 51, a servo motor 54 and two conveying rollers 52. The guide seat 51 is fixedly installed on the front side of the bottom end of the inner cavity of the fixed seat 1. The guide seat 51 is located on the lower side of the inclined frame 4. The top of the guide seat 51 is sloping with the front higher than the back. Two guide strips 511 are symmetrically installed on the top of the guide seat 51.

[0031] Two conveying rollers 52 are respectively rotatably installed between the upper and lower sides of the rear side of the inner cavity of the fixed seat 1. The servo motor 54 is fixedly installed on the lower side of the outer surface of the fixed seat 1 in the height direction. The output shaft of the servo motor 54 is fixedly connected to the rotating seat of the uppermost conveying roller 52 through a coupling.

[0032] A conveyor belt 53 is rotatably connected between two conveyor rollers 52. The bottom slope of the conveyor belt 53 is close to the bottom slope of the guide seat 51. The bottom slope height of the conveyor belt 53 is lower than the bottom slope height of the guide seat 51. Leak-proof strips 531 are fixedly installed at equal intervals on the outer surface of the conveyor belt 53.

[0033] Two conveyor rollers 52 are respectively fixedly mounted on their rotating shafts, and a transmission belt 551 is connected between the two pulleys 55.

[0034] The bullets are filtered through the filter holes on the lower surface of the semi-arc screen frame 2. The bullets fall downwards and are guided by the inclined surface of the guide seat 51 and the two guide strips 511 to slide onto the conveyor belt 53 and be conveyed upwards. Since the conveyor belt 53 has a certain angle, in order to prevent the bullets from sliding down the inclined surface of the conveyor belt 53 and failing to be conveyed normally, multiple anti-leakage strips 531 are installed at equal intervals on the outer surface of the conveyor belt 53 to prevent the bullets from failing to be conveyed normally.

[0035] Start the servo motor 54. The output shaft of the servo motor 54 rotates forward, driving the uppermost conveyor roller 52 to rotate forward. The uppermost conveyor roller 52 drives the lowermost conveyor roller 52 to rotate in the same direction through two pulleys 55 and the transmission belt 551. In this way, the conveyor belt 53 rotates and drives the shot to be transported upward to the inclined frame 4. The shot slides back down into the semi-arc screen frame 2 through the inclined surface of the inclined frame 4 for repeated use.

[0036] It should be noted that the specific installation method, circuit connection method, and control method of the electric cylinder 36 and servo motor 54 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shot blasting device for aluminum castings, comprising a fixed base (1), characterized in that: The top of the fixed seat (1) is open. A semi-arc screen frame (2) is rotatably installed on the upper front side of the inner cavity of the fixed seat (1). An inclined frame (4) is installed on the upper rear side of the inner cavity of the fixed seat (1). The bottom slope of the inclined frame (4) is located near the upper port of the semi-arc screen frame (2). A conveying component (5) is provided on the rear side of the inner cavity of the fixed seat (1) at the middle of the opening of the inclined frame (4). A reciprocating drive component (3) is provided on the outer surface of the fixed seat (1) in the height direction.

2. The shot blasting device for aluminum casting according to claim 1, characterized in that: The reciprocating drive assembly (3) includes a connecting frame (31), a gear frame (32) and a guide rail (34). The connecting frame (31) and the gear frame (32) are respectively fixedly installed on the end face of the fixed base (1) in the height direction. A gear (33) is rotatably installed on the gear frame (32). The gear (33) is fixedly connected to the rotating shaft of the semi-arc screen frame (2).

3. The shot blasting device for aluminum casting according to claim 2, characterized in that: An electric cylinder (36) is fixedly installed on the connecting frame (31). The guide rail (34) is fixedly installed on the end face of the fixed base (1) in the height direction, which is located on the lower side of the gear frame (32). A rack (35) that meshes with the gear (33) is slidably installed on the guide rail (34). The output end of the electric cylinder (36) is fixedly connected to the rear end of the rack (35).

4. The shot blasting device for aluminum casting according to claim 3, characterized in that: The conveying assembly (5) includes a guide seat (51), a servo motor (54) and two conveying rollers (52). The guide seat (51) is fixedly installed on the front side of the bottom end of the inner cavity of the fixed seat (1). The guide seat (51) is located on the lower side of the inclined frame (4). The top of the guide seat (51) is sloping with a higher front and lower back. Two guide strips (511) are symmetrically installed on the top of the guide seat (51).

5. The shot blasting device for aluminum castings according to claim 4, characterized in that: The two conveying rollers (52) are respectively rotatably installed between the upper and lower sides of the rear side of the inner cavity of the fixed seat (1). The servo motor (54) is fixedly installed on the lower side of the outer surface of the fixed seat (1) in the height direction. The output shaft of the servo motor (54) is fixedly connected to the rotating seat of the upstream conveying roller (52) through a coupling.

6. The shot blasting device for aluminum casting according to claim 5, characterized in that: A conveyor belt (53) is rotatably connected between the two conveyor rollers (52). The bottom slope direction of the conveyor belt (53) is close to the bottom slope direction of the guide seat (51). The bottom slope height of the conveyor belt (53) is lower than the bottom slope height of the guide seat (51). Leak-proof strips (531) are fixedly installed at equal intervals on the outer surface of the conveyor belt (53).

7. The shot blasting device for aluminum casting according to claim 6, characterized in that: Pulleys (55) are fixedly mounted on the rotating shafts of the two conveying rollers (52), and a transmission belt (551) is connected between the two pulleys (55).

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