Flange grinding device for non-standard flange preparation

Abstract

The flange polishing device comprises a base plate, supporting legs are fixedly connected to the two ends of the rear side of the top of the base plate and the middle of the front side of the top of the base plate, and a top plate is fixedly installed at the tops of the supporting legs. By the adoption of the structure, during application, the electric push rod is adopted to push the driving wheel to be attached to the outer surface of the flange plate, the second motor drives the driving wheel to rotate, the flange plate is driven to rotate through friction force, and meanwhile the third motor drives the longitudinal moving lead screw and drives the sliding block to adjust the position of the polishing assembly, so that the polishing grinding wheel makes full contact with the flange plate; the guide balls in the clamping grooves reduce resistance through rolling friction, stable rotation of the flange plate is guaranteed, the multiple motors operate cooperatively, the front face and the back face of the flange plate are polished at the same time, overturning errors are avoided, and compared with traditional single-face polishing equipment, the polishing efficiency and quality consistency are greatly improved.

Description

A flange grinding device for non-standard flange manufacturing Technical Field

[0001] This utility model belongs to the field of flange production and processing technology, and specifically relates to a flange grinding device for the preparation of non-standard flanges. Background Technology

[0002] In modern industry, especially in pipeline engineering systems, flanges play an irreplaceable role as the core component for connecting pipes. A flange is a disc-shaped metal component that is connected to other components by bolts through fixing holes around its perimeter. It relies on gaskets between flanges to achieve a sealing effect, thereby ensuring the stable operation of the pipeline system and the safety of media transmission. However, during the manufacturing process of flanges, the surface quality of the flange directly affects the sealing performance of the connection and the stability of the overall structure. Therefore, the grinding process has become a key link in ensuring the performance of flanges.

[0003] Currently, in the existing technologies for flange grinding, the traditional manual hand-held grinder method is still quite common. This operation mode is not only inefficient and difficult to meet the needs of large-scale production, but also prone to flange displacement due to the lack of effective fixing devices during the grinding process, making it difficult to guarantee grinding accuracy and posing certain safety hazards. To solve the drawbacks of manual grinding, researchers have developed a series of automated grinding devices, such as the automatic flange grinding device disclosed in Chinese Patent No. CN222404884U. This device achieves the clamping and fixing of the flange through the coordinated design of the frame, support, placement groove, clamping device and grinding device, and can replace manual grinding operations, significantly improving grinding efficiency.

[0004] However, in practical applications, it has been found that such devices still have certain limitations. During use, flanges usually need to be polished on both surfaces to ensure the sealing and reliability of the double-sided connection. However, existing automatic grinding devices can only polish one side of the flange. To complete double-sided grinding, the flange needs to be flipped over and fixed and ground again. This not only increases the complexity of the operation process but also reduces the overall grinding efficiency. It is evident that the existing technology has certain defects and shortcomings in its overall application, and therefore, it needs to be improved and designed. Summary of the Invention

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a flange grinding device for non-standard flange manufacturing, so as to solve the problem that it is inconvenient to polish both sides of the flange during the application of the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A flange polishing device for non-standard flange manufacturing includes a base plate. Support legs are fixedly connected to the two rear ends and the middle of the front side of the base plate. A top plate is fixedly installed on the top of the support legs. A driving mechanism is fixedly installed on the middle of the front side of the top plate. A clamping mechanism is fixedly installed in the middle of the top plate. The inner side of the clamping mechanism clamps a flange disc to be polished. A polishing mechanism is fixedly installed in the middle of the rear side of the top plate.

[0008] The clamping mechanism includes a guide rail, which is fixedly installed in the middle of the top plate. A first motor is fixedly connected to one end of the guide rail. A transverse lead screw is fixedly installed through the output end of the first motor and is rotatably connected to the inside of the guide rail. The two ends of the transverse lead screw have opposite thread directions. Both ends of the transverse lead screw are threadedly connected to sliders. A clamping frame is fixedly connected to the top of the sliders. The flange disc to be polished is clamped between the inner sides of the clamping frame.

[0009] Furthermore, the drive mechanism includes a front rail, which is fixedly connected to the center of the front of the top plate. An electric push rod is fixedly connected to the top of the front rail. A movable block is fixedly installed at the output end of the electric push rod. The movable block slides inside the front rail. A concave frame is fixedly connected to the top of the movable block. A drive wheel is rotatably connected inside the concave frame. A second motor is fixedly connected to the bottom of the concave frame. The output end of the second motor is connected to the top of the drive wheel. The outer surface of the drive wheel is in contact with the outer surface of the flange to be polished.

[0010] Furthermore, the clamping frame includes a support shaft, which is fixedly installed on the top of the slider. A clamping plate is fixedly connected to the top of the support shaft. A clamping groove is formed on the inner side of the clamping plate. The clamping groove has a V-shaped shape when viewed from above. The overall cross-sectional shape of the inside of the clamping groove is U-shaped. The flange to be polished is disposed between the inner sides of the clamping groove. Inner plates are fixedly connected to both ends of the inside of the clamping groove. Guide balls are rotatably connected to the inner side of the inner plates at equal intervals. The inner side of the guide balls is in close contact with the outer side of the flange to be polished.

[0011] Furthermore, mounting holes are provided at the four corners of the top of the substrate, and the mounting holes are countersunk holes.

[0012] Furthermore, the outer surface of the drive wheel is fixedly connected with anti-slip convex strips arranged in a ring at equal intervals, the cross-sectional shape of the internal cavity of the movable block and the front rail is set to a convex shape, and the overall cross-sectional shape of the internal cavity of the guide rail and the slider is also set to a convex shape.

[0013] Furthermore, the polishing mechanism includes a vertical rail, which is fixedly installed in the middle of the rear side of the top plate. A third motor is fixedly connected to the bottom of the vertical rail. The output end of the third motor passes through the vertical rail and is fixedly connected to a longitudinal sliding screw. The longitudinal sliding screw is rotatably connected to the inside of the vertical rail. The two ends of the longitudinal sliding screw have opposite thread directions. Both ends of the longitudinal sliding screw are threadedly connected to sliding blocks. A polishing component is fixedly installed on the front side of the sliding blocks.

[0014] Furthermore, the polishing assembly includes a front plate, which is fixedly mounted on the front of the sliding block. A fourth motor is fixedly connected to the outer front end of the front plate. The output end of the fourth motor is fixedly connected to a mounting base through the front plate. A polishing wheel is mounted on the inner side of the mounting base by bolts.

[0015] In summary, the present invention has the following main advantages:

[0016] First, this device constructs an adaptive clamping system through the cooperation of a first motor and a transverse lead screw. During operation, the first motor is started to drive the transverse lead screw to rotate. Because the threads at both ends of the lead screw rotate in opposite directions, the slider connected to it slides synchronously in the opposite direction along the guide rail, driving the top clamping frame to move. This allows the V-shaped clamping groove of the clamping plate to tightly cover the flange. This design can accurately adjust the clamping distance according to the actual diameter of the flange, achieving stable fixing of flanges of different sizes. Whether it is a small thin-walled flange or a large thick-walled flange, it can quickly complete the clamping and positioning. Compared with traditional single-specification clamping devices, it significantly improves the application range and compatibility of the equipment.

[0017] Secondly, during the application and grinding process, multiple drive mechanisms of this device work together to achieve efficient double-sided grinding of the flange. The electric push rod pushes the drive wheel to contact the outer surface of the flange, the second motor drives the drive wheel to rotate, and the flange is rotated by friction. At the same time, the third motor drives the longitudinal lead screw, which drives the sliding block to adjust the position of the polishing component, so that the polishing wheel is in full contact with the flange. The fourth motor drives the grinding wheel to rotate at high speed for grinding. The guide balls in the clamping groove reduce resistance by rolling friction, ensuring that the flange rotates smoothly. The multi-motor coordinated operation grinds both sides of the flange at the same time, avoiding flipping errors. Compared with traditional single-sided grinding equipment, it greatly improves grinding efficiency and quality consistency. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 is a schematic diagram of the rear view structure of this utility model.

[0020] Figure 3 is a side view of the present invention.

[0021] Figure 4 is a schematic diagram of the clamping frame structure of this utility model.

[0022] Figure 5 is a schematic diagram of the polishing component structure of this utility model.

[0023] Reference numerals: 1. Base plate; 2. Support leg; 3. Top plate; 4. Flange to be polished; 5. Drive mechanism; 51. Front rail; 52. Electric push rod; 53. Movable block; 54. Concave frame; 55. Drive wheel; 56. Second motor; 57. Anti-slip ridge; 6. Clamping mechanism; 61. Guide rail; 62. First motor; 63. Transverse lead screw; 64. Slider; 65. Clamping frame; 651. Support shaft; 652. Clamping plate; 653. Clamping groove; 654. Inner plate; 655. Guide ball; 7. Polishing mechanism; 71. Vertical rail; 72. Third motor; 73. Longitudinal lead screw; 74. Sliding block; 75. Polishing assembly; 751. Front plate; 752. Fourth motor; 753. Mounting base; 754. Polishing wheel; 8. Mounting hole. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please refer to Figures 1-5. A flange polishing device for non-standard flange preparation in this embodiment includes a base plate 1. Support legs 2 are fixedly connected to the top rear ends and the front middle of the base plate 1. A top plate 3 is fixedly installed on the top of the support legs 2. A drive mechanism 5 is fixedly installed on the front middle of the top plate 3. A clamping mechanism 6 is fixedly installed on the middle of the top plate 3. The inner side of the clamping mechanism 6 clamps the flange disc to be polished. A polishing mechanism 7 is fixedly installed on the rear middle of the top plate 3.

[0027] The clamping mechanism 6 includes a guide rail 61, which is fixedly installed in the middle of the top plate 3. A first motor 62 is fixedly connected to one end of the guide rail 61. A transverse lead screw 63 is fixedly installed through the guide rail 61 at the output end of the first motor 62. The transverse lead screw 63 is rotatably connected to the inside of the guide rail 61. The two ends of the transverse lead screw 63 have opposite thread directions. Both ends of the transverse lead screw 63 are threadedly connected to sliders 64. A clamping frame 65 is fixedly connected to the top of the sliders 64. The flange disc to be polished is clamped between the inner sides of the clamping frame 65. When the flange polishing device of this non-standard flange preparation is in operation, the base plate 1 is used as a stable support foundation. The top plate 3 is erected at a suitable height by the support legs 2. When it is necessary to fix the flange disc to be polished... The first motor 62 in the clamping mechanism 6 is started, and the first motor 62 outputs power. Its output shaft drives the transverse lead screw 63 to rotate inside the guide rail 61. Since the threads at both ends of the transverse lead screw 63 turn in opposite directions, during the rotation of the lead screw, the two sliders 64 connected to it will slide synchronously in opposite directions along the guide rail 61. The clamping frame 65 fixed on the top of the slider 64 moves with the slider 64, causing the support shaft 651 and the clamping plate 652 on the clamping frame 65 to move closer or further away from each other. This allows the clamping groove 653 on the inner side of the clamping plate 652 to tightly cover the outer surface of the flange to be polished according to the diameter of the flange, realizing stable clamping and fixing of flanges of different sizes, and providing a reliable positioning basis for the subsequent grinding process.

[0028] Please refer to Figures 1-3. The drive mechanism 5 includes a front rail 51, which is fixedly connected to the center of the front of the top plate. An electric push rod 52 is fixedly connected to the top of the front rail 51. A movable block 53 is fixedly installed at the output end of the electric push rod 52. The movable block 53 slides inside the front rail 51. A concave frame 54 is fixedly connected to the top of the movable block 53. A drive wheel 55 is rotatably connected inside the concave frame 54. A second motor 56 is fixedly connected to the bottom of the concave frame 54. The output end of the second motor 56 is connected to the top of the drive wheel 55. The outer surface of the drive wheel 55 is in contact with the outer surface of the flange 4 to be polished. When the drive mechanism 5 of this flange polishing device is working, the front rail 51 serves as the guide base for the movable block 53, which is fixed to the center of the front of the top plate 3. When the flange 4 to be polished is clamped... After the mechanism 6 is fixed, the electric push rod 52 is activated. The electric push rod 52 outputs power to push the movable block 53 to slide along the front rail 51, which drives the concave frame 54 on the top of the movable block 53 and the drive wheel 55 installed inside it to move forward until the outer surface of the drive wheel 55 is in close contact with the outer surface of the flange 4 to be polished. At this time, the second motor 56 is turned on. The output shaft of the second motor 56 transmits power to the drive wheel 55, driving the drive wheel 55 to rotate at high speed. Since the outer surface of the drive wheel 55 is in close contact with the outer surface of the flange and there is friction, the rotation of the drive wheel 55 will drive the flange 4 to be polished located in the clamping groove 653 of the clamping mechanism 6 to rotate synchronously, providing stable rotational power for the subsequent polishing mechanism 7 to grind the flange, ensuring that the polishing wheel 754 can grind the flange surface evenly.

[0029] Please refer to Figures 1-4. The clamping frame 65 includes a support shaft 651, which is fixedly installed on the top of the slider 64. A clamping plate 652 is fixedly connected to the top of the support shaft 651. A clamping groove 653 is formed on the inner side of the clamping plate 652. The top view of the clamping groove 653 is V-shaped, and the overall cross-sectional shape of the inside of the clamping groove 653 is U-shaped. The flange 4 to be polished is set between the inner sides of the clamping groove 653. Inner plates 654 are fixedly connected to both ends of the inside of the clamping groove 653. Guide balls 655 are rotatably connected to the inner side of the inner plate 654 at equal intervals. The base plate 1 is fitted to the outer side of the flange 4 to be polished. Mounting holes 8 are provided at the four corners of the top of the base plate 1. The mounting holes 8 are countersunk holes. Anti-slip convex strips 57 are evenly spaced and fixedly connected to the outer surface of the drive wheel 55 in a ring shape. The internal cavity cross-sectional shape of the movable block 53 and the front rail 51 is convex. The internal cavity of the guide rail 61 and the overall cross-sectional shape of the slider 64 are also convex. During the application of this device, in the flange polishing device, the structural design of each component is closely related and their functions are coordinated. The clamping frame 65 is fixed to the top of the slider 64 via a support shaft 651. When the slider... When the 64 is driven to move by the transverse lead screw 63, the support shaft 651 drives the clamping plate 652 to move synchronously. Its inner V-shaped clamping groove 653 can accommodate flanges 4 of different diameters to be polished. The concave internal cross-section design can stably wrap and clamp the flange, achieving a secure clamping. Guide balls 655 are installed on the inner plates 654 at both ends of the clamping groove 653. The balls fit against the outer side of the flange, replacing sliding friction with rolling friction when the flange rotates, reducing rotational resistance and wear, ensuring smooth rotation. The countersunk holes at the four corners of the top of the base plate 1 facilitate the overall fixing and installation of the device. To effectively prevent protruding screws from affecting operation or causing safety hazards, the anti-slip ridges 57 on the outer surface of the drive wheel 55 increase the friction between it and the flange. Driven by the second motor 56, it can drive the flange to rotate more stably. The movable block 53 and the front rail 51, the guide rail 61 and the slider 64 all adopt a convex cross-section design. This structure can effectively limit the lateral displacement of the components, making the movable block 53 slide along the front rail 51 and the slider 64 move along the guide rail 61 more precise and stable. This avoids the impact of shaking on the clamping and grinding accuracy of the flange, ensuring the reliability of the device operation and the efficiency of the grinding operation.

[0030] Please refer to Figures 1-3 and 5. The polishing mechanism 7 includes a vertical rail 71, which is fixedly installed in the middle of the rear side of the top plate. A third motor 72 is fixedly connected to the bottom of the vertical rail 71. The output end of the third motor 72 passes through the vertical rail 71 and is fixedly connected to a longitudinal lead screw 73. The longitudinal lead screw 73 is rotatably connected to the inside of the vertical rail 71. The two ends of the longitudinal lead screw 73 have opposite thread directions. Both ends of the longitudinal lead screw 73 are threadedly connected to sliding blocks 74. A polishing assembly 75 is fixedly installed on the front side of the sliding block 74. The polishing assembly 75 includes a front plate. 751, the front plate 751 is fixedly installed on the front of the sliding block 74. A fourth motor 752 is fixedly connected to the outer front end of the front plate 751. The output end of the fourth motor 752 passes through the front plate 751 and is fixedly connected to a mounting base 753. A polishing wheel 754 is bolted to the inner side of the mounting base 753. During the application of this device, when the polishing mechanism 7 of its flange grinding device is working, the vertical rail 71, as the core support component, is fixed to the middle of the rear side of the top plate 3, providing a stable foundation for the entire polishing process. The third motor 72 is started, and its output... The power drive rotates the longitudinal lead screw 73 that runs through the vertical rail 71. Because the threads at both ends of the longitudinal lead screw 73 rotate in opposite directions, the two sliding blocks 74 connected to it slide synchronously in opposite directions along the vertical rail 71, thus achieving precise adjustment of the position of the sliding blocks 74. The polishing assembly 75, fixedly mounted on the front side of the sliding blocks 74, moves accordingly. The front plate 751 acts as a connecting carrier, transmitting the displacement of the sliding blocks 74 to the fourth motor 752 mounted on it. When the sliding blocks 74 move the polishing assembly 75 to the appropriate position, the polishing wheel 7... After the fourth motor 752 is in full contact with the surface of the flange 4 to be polished, the output shaft of the fourth motor 752 drives the mounting base 753 to rotate, which in turn drives the polishing wheel 754, which is fixed to the inner side of the mounting base 753 by bolts, to rotate at high speed. The grinding action of the polishing wheel 754 is used to polish the surface of the flange 4 to be polished. Through the coordinated operation of the third motor 72 and the fourth motor 752, and the precise control of the position of the polishing component 75 by the longitudinal lead screw 73, the efficient and precise polishing treatment of the flange surface is achieved.

[0031] Operating principle and advantages: This device adopts a clamping structure that combines a first motor 62 with a transverse lead screw 63, forming a complete adaptive adjustment system. During operation, the operator starts the first motor 62, and the motor output shaft drives the transverse lead screw 63 to rotate smoothly within the guide rail 61. Because the threads at both ends of the lead screw rotate in opposite directions, the two threaded sliders 64 will slide synchronously in opposite directions along the guide rail 61 during the rotation of the lead screw. The clamping frame 65 fixed at the top of the slider 64 moves accordingly, causing the clamping plate 652 at the top of the support shaft 651 to move closer or further away from each other. The V-shaped clamping groove 653 on the inner side of the clamping plate 652 can tightly cover the outer surface of the flange. This design can accurately adjust the distance between the two clamping frames 65 according to the actual diameter of the flange, achieving stable clamping of flanges of different sizes.

[0032] Actual testing shows that this clamping system can be adapted to flanges with diameters ranging from 50mm to 500mm, covering more than 90% of standard and non-standard flange products on the market. Whether it is a thin-walled flange for small pipe connections or a thick-walled flange for large industrial equipment, the system can quickly complete clamping and positioning. Compared with traditional single-specification clamping devices, it greatly improves the application range and compatibility of the equipment.

[0033] During the grinding operation, this device achieves efficient grinding of both sides of the flange through the coordinated work of multiple drive mechanisms 5. The electric push rod 52 pushes the movable block 53 to slide along the front rail 51, driving the drive wheel 55 to move forward until it is in contact with the outer surface of the flange. After the second motor 56 is started, the motor drives the drive wheel 55 to rotate. The friction between the anti-slip convex strip 57 on the wheel surface and the flange drives the flange in the clamping groove 653 to rotate stably.

[0034] At the same time, the third motor 72 drives the longitudinal lead screw 73 to rotate, causing the sliding blocks 74 at both ends to move up and down along the vertical rail 71, precisely adjusting the position of the polishing component 75 installed on the front side of the sliding block 74. When the polishing wheel 754 at the end of the fourth motor 752 is in full contact with the flange surface, the fourth motor 752 drives the polishing wheel 754 to rotate at high speed to perform the polishing operation. During this process, the guide balls 655 on the inner plates 654 at both ends inside the groove 653 play a key role. The balls are in contact with the outer surface of the flange, and the rolling friction replaces the sliding friction, greatly reducing the rotational resistance and ensuring that the flange can rotate smoothly and at a uniform speed.

[0035] Multiple motors work together to allow the polishing wheel 754 to polish both sides of the flange simultaneously. Taking a flange with a diameter of 200mm as an example, traditional single-sided polishing equipment takes about 15 minutes to complete double-sided processing, while this device only takes about 5 minutes, improving processing efficiency by nearly 3 times. Furthermore, by precisely controlling the motor speed and the movement trajectory of the polishing component 75, the consistency of polishing quality on both sides of the flange can be effectively guaranteed, avoiding processing errors caused by flipping operations and ensuring that the product meets high-precision processing standards.

[0036] During the application of this device, both the transverse lead screw 63 and the longitudinal lead screw 73 are high-precision rolled ball screws from the TBI brand, with a lead of 10mm, a screw shaft diameter of 20mm, and a precision grade of C7. This ensures stable transmission efficiency and positioning accuracy when driving the slider 64 and sliding block 74. High-rigidity angular contact ball bearings are installed at both ends of the lead screws to effectively withstand axial and radial loads, ensuring the stability of the lead screws during high-speed rotation. The first motor 62 is a Panasonic MINASA 6 series MSMF042L1UM servo motor with a rated power of 400W, a rated speed of 3000rpm, and an encoder resolution of 23 bits. This allows for precise control of the rotation angle and speed of the transverse lead screw 63, achieving precise displacement of the clamping frame 65. The second motor 56 is a Delta ECMA-C10604RS servo motor from the ECMA series, with a rated power of 600W and a maximum torque of 1.27N・m, providing sufficient torque to drive the flange to rotate stably. The third motor 72 is a Mitsubishi HG-KN43J-S100 servo motor from the HG-KN series, with a rated power of 400W. It has high responsiveness and can quickly drive the longitudinal lead screw 73 to rotate, realizing the rapid positioning of the polishing component 75. The fourth motor 752 is a Teco JSMA-MC08ABKB servo motor from the JSMA series, with a rated power of 800W and a maximum speed of 5000rpm. Together with a high-precision reducer, it drives the polishing wheel 754 to complete the grinding operation at a stable speed, ensuring grinding efficiency and quality.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange grinding device for non-standard flange manufacturing, characterized in that: The system includes a substrate (1), with support legs (2) fixedly connected to both ends of the top rear side and the middle of the front side of the substrate (1). A top plate (3) is fixedly installed on the top of the support legs (2). A drive mechanism (5) is fixedly installed on the middle of the front side of the top plate (3). A clamping mechanism (6) is fixedly installed in the middle of the top plate (3). The inner side of the clamping mechanism (6) clamps the flange disc to be polished. A polishing mechanism (7) is fixedly installed in the middle of the rear side of the top plate (3). The clamping mechanism (6) includes a guide rail (61), which is fixedly installed on... In the middle of the top plate (3), one end of the guide rail (61) is fixedly connected to a first motor (62). The output end of the first motor (62) passes through the guide rail (61) and is fixedly installed with a transverse lead screw (63). The transverse lead screw (63) is rotatably connected to the inside of the guide rail (61). The two ends of the transverse lead screw (63) have opposite thread directions. Both ends of the transverse lead screw (63) are threadedly connected to sliders (64). The top of the sliders (64) is fixedly connected to a clamping frame (65). The flange disc to be polished is clamped between the inner sides of the clamping frame (65).

2. The flange grinding device for non-standard flange manufacturing according to claim 1, characterized in that: The drive mechanism (5) includes a front rail (51), which is fixedly connected to the center of the front of the top plate. An electric push rod (52) is fixedly connected to the top of the front rail (51). A movable block (53) is fixedly installed at the output end of the electric push rod (52). The movable block (53) slides inside the front rail (51). A concave frame (54) is fixedly connected to the top of the movable block (53). A drive wheel (55) is rotatably connected inside the concave frame (54). A second motor (56) is fixedly connected to the bottom of the concave frame (54). The output end of the second motor (56) is connected to the top of the drive wheel (55). The outer surface of the drive wheel (55) is in contact with the outer surface of the flange (4) to be polished.

3. The flange grinding device for non-standard flange manufacturing according to claim 2, characterized in that: The clamping frame (65) includes a support shaft (651), which is fixedly installed on the top of the slider (64). A clamping plate (652) is fixedly connected to the top of the support shaft (651). A clamping groove (653) is provided on the inner side of the clamping plate (652). The clamping groove (653) is V-shaped when viewed from above. The overall cross-sectional shape of the clamping groove (653) is U-shaped. The flange to be polished (4) is located between the inner sides of the clamping groove (653). An inner plate (654) is fixedly connected to both ends of the inner side of the clamping groove (653). Guide balls (655) are rotatably connected to the inner side of the inner plate (654) at equal intervals. The inner side of the guide balls (655) and the outer side of the flange to be polished (4) are fitted together.

4. The flange grinding device for non-standard flange manufacturing according to claim 1, characterized in that: Mounting holes (8) are provided at the four corners of the top of the substrate (1), and the mounting holes (8) are countersunk holes.

5. The flange grinding device for non-standard flange manufacturing according to claim 3, characterized in that: The outer surface of the drive wheel (55) is fixedly connected with anti-slip convex strips (57) arranged in a ring at equal intervals. The cross-sectional shape of the internal cavity of the movable block (53) and the front rail (51) is set as convex. The cross-sectional shape of the internal cavity of the guide rail (61) and the overall cross-sectional shape of the slider (64) are also set as convex.

6. The flange grinding device for non-standard flange manufacturing according to claim 1, characterized in that: The polishing mechanism (7) includes a vertical rail (71), which is fixedly installed in the middle of the rear side of the top plate. A third motor (72) is fixedly connected to the bottom of the vertical rail (71). The output end of the third motor (72) passes through the vertical rail (71) and is fixedly connected to a longitudinal sliding screw (73). The longitudinal sliding screw (73) is rotatably connected to the inside of the vertical rail (71). The two ends of the longitudinal sliding screw (73) have opposite thread directions. Both ends of the longitudinal sliding screw (73) are threadedly connected to sliding blocks (74). A polishing component (75) is fixedly installed on the front side of the sliding block (74).

7. The flange grinding device for non-standard flange manufacturing according to claim 6, characterized in that: The polishing assembly (75) includes a front plate (751), which is fixedly installed on the front of the sliding block (74). A fourth motor (752) is fixedly connected to the outer front end of the front plate (751). The output end of the fourth motor (752) is fixedly connected to a mounting base (753) through the front plate (751). A polishing wheel (754) is installed on the inner side of the mounting base (753) by bolts.

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