Pipe structure workpiece shot blasting rotating device

Abstract

The utility model relates to a shot blasting rotating device for a tubular workpiece. The shot blasting rotating device is mainly used for automatically rotating the tubular workpiece so as to realize the uniformity and high efficiency of a shot blasting process. The device comprises a fixed seat, a guide rail, a sliding block, a connecting piece, a rotating shaft, a gear, a motor, a circular truncated cone and an inner supporting structure. Multiple through holes are formed in the top of the fixing base, guide rails are installed on the inner top wall, the sliding blocks can slide along the guide rails, and racks corresponding to the through holes are arranged at the bottoms of the connecting pieces. The rotating shaft penetrates through the through hole and is fixed to the fixing seat through a bearing seat, and the gear is matched with the rotating shaft and meshed with the rotating shaft through a rack. The motor drives the sliding block to slide along the guide rail to realize rotation of the rotating shaft. The circular truncated cone is located above the fixing base and used for containing a tubular workpiece, and the inner supporting structure is fixed in the circular truncated cone to ensure that the workpiece and the circular truncated cone rotate synchronously. Through the structural characteristics, the uniformity and the efficiency of the shot blasting process are improved.

Description

Technical Field

[0001] This application relates to the field of auxiliary workpiece equipment for shot blasting machines, specifically a rotating device for shot blasting tubular workpieces. Background Technology

[0002] In traditional surface treatment of tubular workpieces, manual or semi-automatic shot blasting methods are often used. These methods are inefficient and labor-intensive, making them unsuitable for the demands of modern industrial production. Therefore, it is necessary to design a highly automated, easy-to-operate, and more efficient rotary shot blasting device for tubular workpieces. Utility Model Content

[0003] The purpose of this utility model is to provide a rotating shot blasting device for tubular workpieces. This device can automatically rotate the workpiece, making the shot blasting process more uniform and efficient. To achieve the above objective, this application provides the following technical solution: A rotating shot blasting device for tubular workpieces, comprising:

[0004] A fixing base having a hollow cavity, and the top wall of the fixing base having multiple through holes;

[0005] A guide rail is mounted on the inner top wall of the fixed base;

[0006] A slider that can slide along the guide rail;

[0007] A connecting piece is fixedly connected to the slider. A toothed rack is provided at the bottom of the connecting piece. The toothed rack corresponds to the through hole and extends along the sliding direction of the slider.

[0008] A rotating shaft passes through the through hole and is fixed to the fixed base by a bearing seat;

[0009] The gear engages with a key on the rotating shaft via a keyway and is fixed by a clamping block, thereby achieving a fixed connection with the rotating shaft. The gear meshes with the rack.

[0010] The motor is disposed on the inner top wall of the fixed base, and the telescopic rod of the motor is connected to the connecting piece. The motor can drive the slider to slide along the guide rail, and the rotation of the rotating shaft is realized through the meshing of the rack and the gear.

[0011] A frustum, which is connected to the rotating shaft via a keyway, and is located above the fixed base, with the top of the frustum used to place a tubular workpiece;

[0012] An internal support structure is fixedly connected to the inside of the frustum and supports the inside of the tubular workpiece, enabling the workpiece and the frustum to rotate synchronously.

[0013] In a preferred embodiment of this technical solution, the internal support structure includes a first hinge plate, a second hinge plate, a positioning plate, a support column, a first connecting rod, a second connecting rod, a screw, and a push plate. The first hinge plate and the second hinge plate are parallel to each other and each has multiple hinge seats around its perimeter. The support column is located at the bottom of the second hinge plate and is hinged to the positioning plate at one end. The positioning plate is fixedly connected to the interior of the frustum. The first hinge plate and the second hinge plate are respectively provided with a through hole and a threaded hole in the middle. One end of the first connecting rod is hinged to the first hinge plate, and the other end is hinged to one end of the second connecting rod. The other end of the second connecting rod is hinged to the second hinge plate. A push plate is provided on the hinge axis of the first connecting rod and the second connecting rod. The screw passes through the through hole of the first hinge plate and the threaded hole of the second hinge plate and is threadedly connected. Rotating the screw can adjust the distance between the first hinge plate and the second hinge plate, thereby realizing the external support of the push plate.

[0014] In a preferred embodiment, the present technical solution further includes a connecting block, which is disposed at the end of the telescopic rod of the motor and is fixed to the connecting piece.

[0015] In a preferred embodiment, this technical solution further includes limiting blocks, which are disposed at both ends of the guide rail.

[0016] In a preferred embodiment, this technical solution further includes an adjusting rod, which is disposed on the limiting block and threadedly connected to the limiting block. The adjusting rod can abut against the connecting piece to limit the movement range of the connecting piece.

[0017] In a preferred embodiment of this technical solution, the sidewall of the push plate that contacts the inner wall of the tubular workpiece is arc-shaped.

[0018] In a preferred embodiment of this technical solution, the side wall of the push plate is provided with an anti-slip layer.

[0019] In a preferred embodiment, the present technical solution further includes a gasket, which is disposed on the top of the frustum, and the area of ​​the gasket is larger than the area of ​​the top of the frustum.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] This invention provides a rotating shot blasting device for tubular workpieces, which effectively solves the problems of unevenness and low efficiency in the existing shot blasting process by automatically rotating the workpiece. Specifically, the device achieves this goal through the following technical features: the hollow cavity design of the fixed base and the multiple through holes in the top wall facilitate the installation of multiple rotating shafts for simultaneous operation. The design of the guide rail and slider allows the connecting piece to slide along the guide rail, thereby realizing the function of the motor driving the slider to slide along the guide rail, further ensuring the uniformity of the rotating shaft rotation. The meshing design of the rack and pinion makes the rotation of the shaft more stable and enables precise control, improving the uniformity and efficiency of the shot blasting process. The internal support structure allows the tubular workpiece to rotate synchronously with the frustum during the shot blasting process, ensuring the uniformity of shot blasting on the workpiece surface. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the usage state of a shot blasting rotating device for a tubular workpiece as proposed in an embodiment of this application.

[0023] Figure 2 This is a three-dimensional schematic diagram of a shot blasting rotating device for a tubular workpiece according to an embodiment of this application;

[0024] Figure 3 This is a three-dimensional schematic diagram of the internal support structure;

[0025] Figure 4 This is a bottom schematic diagram of a portion of the structure of a shot blasting rotating device for a tubular workpiece proposed in an embodiment of this application;

[0026] Figure 5 This is a schematic diagram showing the connection between the rotating shaft, the frustum, and the gear.

[0027] In the diagram: 1. Fixed seat; 2. Through hole; 3. Guide rail; 4. Slider; 5. Connecting piece; 6. Rack; 7. Rotating shaft; 8. Gear; 9. Tightening block; 10. Motor; 11. Frustum; 12. Internal support structure; 13. First hinge piece; 14. Second hinge piece; 15. Positioning plate; 16. Support column; 17. First connecting rod; 18. Second connecting rod; 19. Screw; 20. Push plate; 21. Hinge seat; 22. Connecting block; 23. Limiting block; 24. Adjusting rod; 25. Shim. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that in the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0032] In order to solve the technical problems in the background art, such as Figure 1-5 As shown, this application provides a technical solution: a shot blasting rotating device for tubular workpieces, characterized as follows:

[0033] The fixed base 1 is a hollow cavity structure with multiple through holes 2 on its top wall for the passage and fixation of multiple rotating shafts 7. A guide rail 3 is installed on the inner top wall of the fixed base 1. The guide rail 3 is the guiding structure for the movement of the slider 4, ensuring that the slider 4 can slide smoothly and accurately along a predetermined path. A connecting piece 5 is fixedly connected to the slider 4, and a rack 6 is provided at the bottom of the connecting piece 5. The rack 6 corresponds one-to-one with the through holes 2, and a rotating shaft 7 is provided in each through hole 2, extending in the direction of the slider 4's sliding to mesh with the gear 8. The rotating shaft 7 passes through the through holes 2 and is fixed in the fixed base 1 using a bearing seat. The rotating shaft 7 is a key component connecting the frustum 11 and the gear 8, used to transmit rotational power. The gear 8 engages with the key on the rotating shaft 7 via a keyway and is fixed by a clamping block 9 to achieve a fixed connection with the rotating shaft 7. The gear 8 meshes with the rack 6 so that the movement of the rack 6 drives the gear 8 to rotate, thereby transmitting power from the motor 10. The motor 10 is mounted on the inner top wall of the fixed base 1, ensuring that the telescopic rod of the motor 10 is connected to the connecting piece 5. The motor 10 drives the slider 4 to slide along the guide rail 3, and through the meshing of the rack 6 and gear 8, the rotating shaft 7 is rotated. The frustum 11 is connected to the rotating shaft 7 via a keyway and is located on top of the fixed base 1. The top of the frustum 11 is used to place the tubular workpiece so that the workpiece can rotate during shot blasting. The inner support structure 12 is fixedly connected inside the frustum 11 and supports the tubular workpiece inside to achieve synchronous rotation of the workpiece and the frustum 11. During operation, after the motor 10 starts, its telescopic rod drives the connecting piece 5 and the slider 4 to slide along the guide rail 3. Due to the meshing of the rack 6 and gear 8, the rotating shaft 7 rotates accordingly, thereby driving the frustum 11 and the tubular workpiece to rotate. The inner support structure 12 ensures that the tubular workpiece and the frustum 11 rotate synchronously to ensure the uniformity and efficiency of the shot blasting process.

[0034] In actual operation, the tubular workpiece to be shot blasted is placed at a predetermined position on top of the frustum 11. The inner support structure 12 is adjusted to accommodate the inner diameter of the tubular workpiece, ensuring stability during rotation. The motor 10 is started, and its telescopic rod drives the connecting piece 5 to slide along the guide rail 3, thereby rotating the shaft 7 through the meshing of the rack 6 and gear 8. As the shaft 7 rotates, the frustum 11 and the inner support structure 12 rotate the tubular workpiece, preparing it for shot blasting. While the tubular workpiece rotates, the shot blasting machine is started to perform shot blasting on the workpiece surface to achieve the desired surface treatment effect. After shot blasting is completed, the motor 10 is turned off, the rotation of the shaft 7 is stopped, and the treated workpiece is removed from the frustum 11.

[0035] It should be noted that the internal support structure 12 consists of a first hinge plate 13, a second hinge plate 14, a positioning plate 15, a support column 16, a first connecting rod 17, a second connecting rod 18, a screw 19, and a push plate 20. The first hinge plate 13 and the second hinge plate 14 are arranged parallel to each other, and each has multiple hinge seats 21 around its perimeter. These hinge seats 21 are used to hinge the connecting rods, providing flexible rotation and support. The support column 16 is located at the bottom of the second hinge plate 14, and one end of it is hinged to the positioning plate 15. The positioning plate 15 is fixedly connected to the inside of the frustum 11, generally by welding or threaded connection, to ensure that the internal support structure 12 rotates synchronously with the frustum 11. One end of the first connecting rod 17 is hinged to the first hinge plate 13, and the other end is hinged to one end of the second connecting rod 18. The other end of the second connecting rod 18 is hinged to the second hinge plate 14, forming a stable support structure. A push plate 20 is provided on the hinge shaft between the first connecting rod 17 and the second connecting rod 18. Specifically, the push plate 20 is located at both ends of the hinge shaft and is used to contact the inner wall of the tubular workpiece to provide external support. A screw 19 passes through the through hole of the first hinge plate 13 and the threaded hole of the second hinge plate 14 to achieve a threaded connection. A positioning washer is fixedly provided on the screw 19 at the bottom of the through hole, allowing the screw 19 to rotate within the through hole while maintaining a constant vertical height. By rotating the screw 19, the distance between the first hinge plate 13 and the second hinge plate 14 can be adjusted, thereby adjusting the contact pressure and position of the push plate 20 with the inner wall of the tubular workpiece.

[0036] Furthermore, the connecting block 22 is located at the end of the telescopic rod of the motor 10. This position allows the connecting block 22 to directly receive the driving force of the telescopic rod of the motor 10. The connecting block 22 is fixedly connected to the connecting piece 5, which can be achieved through welding, bolting, or other suitable fixing methods. This design ensures that the power of the motor 10 can be stably and directly transmitted to the connecting piece 5. When the motor 10 starts, its telescopic rod extends and retracts, driving the connecting block 22 to move. Since the connecting block 22 is fixed to the connecting piece 5, this action directly causes the connecting piece 5 to slide along the guide rail 3.

[0037] It should be noted that the limiting blocks 23 are located at both ends of the guide rail 3. Their main function is to limit the range of motion of the slider 4, ensuring that the slider 4 slides stably on the guide rail 3 and does not detach from the guide rail 3 due to excessive movement. The limiting blocks 23 can be designed as fixed or adjustable. Fixed limiting blocks 23 are usually directly fixed to both ends of the guide rail 3, while adjustable limiting blocks 23 can be adjusted in position as needed to accommodate sliders 4 of different lengths or different working conditions. When the slider 4 moves along the guide rail 3 to either end of the guide rail 3, the slider 4 will contact the limiting block 23, thus stopping further movement. This prevents the slider 4 from damaging the guide rail 3 or the slider 4 itself due to excessive movement.

[0038] Furthermore, the adjusting rod 24 is mounted on and threadedly connected to the limiting block 23. This design allows the adjusting rod 24 to be easily adjusted in position as needed. The adjusting rod 24 abuts against the connecting piece 5, and the threaded connection allows for precise adjustment of the distance between the adjusting rod 24 and the connecting piece 5, thereby limiting the range of movement of the connecting piece 5. The operator can adjust the stop position of the slider 4 on the guide rail 3 by rotating the adjusting rod 24 as needed to change its contact position with the connecting piece 5. This adjustment can be very precise because the threaded connection allows for small positional changes.

[0039] It should be noted that the curved sidewalls can better adapt to the inner walls of tubular workpieces of different diameters. Regardless of the inner diameter of the tubular workpiece, the curved design can provide relatively uniform contact pressure. The curved design makes the contact between the push plate 20 and the inner wall of the tubular workpiece more uniform, reducing workpiece rotation instability caused by uneven contact. The curved sidewalls reduce friction and wear between the push plate 20 and the inner wall of the tubular workpiece, extending the service life of both the push plate 20 and the tubular workpiece. Compared to designing push plates 20 of different shapes for tubular workpieces of different sizes, the curved design provides a more universal solution.

[0040] It is worth noting that the anti-slip layer on the sidewall of the pusher plate 20 is an effective design improvement. This increases the friction between the pusher plate 20 and the inner wall of the tubular workpiece, ensuring that the pusher plate 20 stably supports the workpiece during shot blasting and preventing it from rolling or sliding within the shot blasting machine. The anti-slip layer can be made of wear-resistant materials with a high coefficient of friction, such as rubber, polyurethane, or other synthetic materials, which provide good grip under various working conditions. The anti-slip layer can be designed with a textured or granular surface to increase the contact area and friction with the inner wall of the tubular workpiece. This design can be a raised pattern, a grid texture, or a series of small particles. The anti-slip layer can be directly embedded in the sidewall of the pusher plate 20 or fixed to the sidewall of the pusher plate 20 as an additional component. This fixing can be achieved through adhesive, bolts, or other mechanical means.

[0041] It is worth noting that the larger area of ​​the shim 25 compared to the top area of ​​the frustum 11 provides a greater contact area, which helps to distribute the weight of the tubular workpiece and reduce localized pressure on the frustum 11. A larger shim 25 provides more stable support, reducing vibration of the workpiece on the frustum 11 and improving stability during rotation. The shim 25 can cover the entire top of the frustum 11, helping to ensure the balance of the workpiece during rotation and preventing eccentric rotation caused by uneven contact. The shim 25 can act as a protective layer, reducing direct contact between the workpiece and the frustum 11, thus reducing wear and damage. The larger shim 25 can accommodate tubular workpieces of different sizes, providing greater flexibility in its application.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotating shot blasting device for tubular workpieces, characterized in that, include: A fixing seat (1) has a hollow cavity, and the top wall of the fixing seat (1) is provided with multiple through holes (2); Guide rail (3), the guide rail (3) is installed on the inner top wall of the fixed base (1); Slider (4), which can slide along the guide rail (3); A connecting piece (5) is fixedly connected to the slider (4). A rack (6) is provided at the bottom of the connecting piece (5). The rack (6) corresponds one-to-one with the through hole (2) and extends along the sliding direction of the slider (4). A rotating shaft (7) passes through the through hole (2) and is fixed to the fixed seat (1) by a bearing seat; Gear (8), the gear (8) is engaged with the key on the rotating shaft (7) through a keyway and is fixed by a clamping block (9) to achieve a fixed connection with the rotating shaft (7), and the gear (8) meshes with the rack (6); The motor (10) is located on the inner top wall of the fixed base (1), and the telescopic rod of the motor (10) is connected to the connecting piece (5). The motor (10) can drive the slider (4) to slide along the guide rail (3). The rotation of the rotating shaft (7) is achieved through the meshing of the rack (6) and the gear (8). A frustum (11) is connected to the rotating shaft (7) via a keyway, and the frustum (11) is located above the fixed base (1). The top of the frustum (11) is used to place a tubular workpiece. An inner support structure (12) is fixedly connected to the inside of the frustum (11). The inner support structure (12) supports the inside of the tubular workpiece, so as to realize the synchronous rotation of the workpiece and the frustum (11).

2. The shot blasting rotating device for tubular workpieces according to claim 1, characterized in that, The internal support structure (12) includes a first hinge plate (13), a second hinge plate (14), a positioning plate (15), a support column (16), a first connecting rod (17), a second connecting rod (18), a screw (19), and a push plate (20). The first hinge plate (13) and the second hinge plate (14) are parallel to each other and are provided with multiple hinge seats (21) around their periphery. The support column (16) is located at the bottom of the second hinge plate (14) and is hinged to the positioning plate (15) at one end. The positioning plate (15) is fixedly connected to the interior of the frustum (11). The first hinge plate (13) and the second hinge plate (14) are respectively provided with... A through hole and a threaded hole are provided. One end of the first connecting rod (17) is hinged to the first hinge plate (13), and the other end is hinged to one end of the second connecting rod (18). The other end of the second connecting rod (18) is hinged to the second hinge plate (14). A push plate (20) is provided on the hinge shaft of the first connecting rod (17) and the second connecting rod. The screw (19) passes through the through hole of the first hinge plate (13) and the threaded hole of the second hinge plate (14) and is threadedly connected. Rotating the screw (19) can adjust the distance between the first hinge plate (13) and the second hinge plate (14), thereby realizing the external support of the push plate (20).

3. The shot blasting rotating device for tubular workpieces according to claim 2, characterized in that, It also includes a connecting block (22), which is disposed at the end of the telescopic rod of the motor (10) and is fixed to the connecting piece (5).

4. The shot blasting rotating device for tubular workpieces according to claim 3, characterized in that, It also includes a limiting block (23), which is disposed at both ends of the guide rail (3).

5. The shot blasting rotating device for tubular workpieces according to claim 4, characterized in that, It also includes an adjusting rod (24), which is disposed on the limiting block (23) and threadedly connected to the limiting block (23). The adjusting rod (24) can abut against the connecting piece (5) to limit the movement range of the connecting piece (5).

6. The shot blasting rotating device for tubular workpieces according to claim 2, characterized in that, The sidewall of the pusher plate (20) that contacts the inner wall of the tubular workpiece is arc-shaped.

7. The shot blasting rotating device for tubular workpieces according to claim 6, characterized in that, The side wall of the push plate (20) is provided with an anti-slip layer.

8. The shot blasting rotating device for tubular workpieces according to claim 6, characterized in that, It also includes a gasket (25) disposed on the top of the frustum (11), and the area of ​​the gasket (25) is larger than the area of ​​the top of the frustum (11).

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