A support device for milling keyways in a flange coupling body
By designing a support device for milling keyways in flange couplings, and adopting a dual limiting structure of axial and radial limiting brackets, the problem of high labor intensity in milling keyways of flange couplings was solved, achieving stable fixation and efficient processing, and improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山港(山东)海工装备有限公司
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-26
AI Technical Summary
During the milling of keyways in flange couplings, the lack of effective support devices leads to high labor intensity for operators and makes it difficult to achieve stable and efficient axial fixation.
A support device for milling keyways on the body of a flange coupling was designed. It adopts a dual limiting structure of axial limiting bracket and radial limiting bracket, combined with height adjustment component and pressing plate, to achieve stable fixing and flexible adaptation of the flange coupling, and to adapt to workpieces of different specifications.
The combination of a dual limiting structure and a height adjustment component reduces the labor intensity of operators, improves processing stability and efficiency, and ensures the accuracy and quality of keyway machining.
Smart Images
Figure CN224274156U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of machining technology, specifically a support device for milling keyways in a flange coupling body. Background Technology
[0002] Flange couplings, also known as flange joints, are commonly used mechanical transmission components, primarily used to connect two shafts, enabling them to rotate together and transmit torque. They connect the two shaft ends together via bolts on a flange, offering advantages such as simple structure, easy installation, and high torque transmission capacity, making them widely used in various mechanical equipment. The working principle of flange couplings is based on torque transmission in mechanical drives. When the driving shaft rotates, the torque is transmitted to the driving flange via a key or spline. Because the driving and driven flanges are tightly connected by bolts, the driven flange also rotates, further transmitting torque to the driven shaft, thus realizing the power transmission between the two shafts.
[0003] The flange coupling involved in this case comprises a cylindrical section, one end of which has an annular boss. Milling the keyway is a crucial machining step in the manufacturing or repair of flange couplings. The keyway is used to install the key, and the torque transmission between the flange coupling and the shaft is achieved through the mating of the key and the keyway on the shaft. The precision and quality of the milled keyway directly affect the connection performance and transmission efficiency between the flange coupling and the shaft. The width, depth, and length of the keyway are designed based on the magnitude of the torque transmitted by the flange coupling, the diameter of the shaft, and the type of key (e.g., flat key, semi-circular key, etc.). Since the machining direction of the keyway coincides with the axial direction of the flange coupling, the most important aspect of the machining process is axial fixation of the flange coupling. Currently, the lack of supports for milling the keyways of flange couplings leads to high labor intensity for operators. Utility Model Content
[0004] To address the issue of high labor intensity during the milling of keyways in flange coupling bodies, this utility model provides a support device for milling keyways in flange coupling bodies.
[0005] This utility model is achieved through the following technical solution:
[0006] A support device for milling keyways in a flange coupling body includes a frame, on which an axial limiting bracket and a radial limiting bracket are provided; the top surface of the radial limiting bracket is generally an inclined arc surface and there are two of them, and the two radial limiting brackets are symmetrically arranged.
[0007] One side of each of the two radial limiting brackets is provided with an axial limiting bracket; the axial limiting bracket includes a support platform and an axial limiting groove, and the axial limiting groove is mounted on the support platform by a height adjustment assembly.
[0008] The cylindrical sections of the flange coupling body are placed on two radial limiting brackets. The annular boss of the flange coupling body is placed in the axial limiting groove. The height adjustment component is used to adjust the height of the axial limiting groove so that the axis of the cylindrical section is horizontal. This makes it easier for the operator to process the keyway on the inner wall of the cylindrical section, which helps to reduce labor intensity. At the same time, the axial limiting groove restricts the axial movement of the flange coupling body.
[0009] A further improvement of this utility model is that the height adjustment assembly includes an adjusting bolt two and a locking nut; the adjusting bolt two passes through the axial limiting groove and is threaded into the fixing screw hole two on the top of the support platform, and the locking nut is disposed below the axial limiting groove and threaded onto the adjusting bolt two. The height adjustment assembly, using the combination of the adjusting bolt two and the locking nut, achieves stepless height adjustment of the axial limiting groove through a threaded connection; it can flexibly adapt to flange coupling bodies of different sizes, especially adapting to the radial thickness of the annular boss, improving the versatility and compatibility of the device.
[0010] A further improvement of this utility model is that at least two support platforms are provided, and the at least two support platforms are evenly distributed along the length direction of the axial limiting groove. The provision of at least two support platforms evenly distributed along the length direction of the axial limiting groove forms multi-point support; this enhances the overall rigidity of the axial limiting bracket, prevents long strip workpieces from bending or swaying due to uneven force during processing, and further improves processing stability.
[0011] A further improvement of this invention is that a pressing plate is also provided within the aforementioned axial limiting groove. An adjusting screw, capable of abutting against the pressing plate, is threaded onto the side wall of the axial limiting groove opposite to the radial limiting bracket. The pressing plate cooperates with the adjusting screw; rotating the adjusting screw pushes the pressing plate against the workpiece, preventing axial movement of the annular boss within the axial limiting groove and improving clamping efficiency. Furthermore, the contact surface between the pressing plate and the workpiece is evenly stressed, avoiding surface damage to the workpiece that may occur with traditional rigid clamping.
[0012] A further improvement of this invention is that the adjusting screw is rotatably connected to the extrusion plate. The adjusting screw and the extrusion plate are rotatably connected, for example, by a bearing connection; this prevents the extrusion plate from rotating with the adjusting screw during adjustment; it ensures that the extrusion plate moves only axially, accurately clamping the workpiece, simplifying the operation process, and improving clamping efficiency.
[0013] A further improvement of this invention is that at least two adjusting screws are provided, and these at least two adjusting screws are arranged along the length direction of the axial limiting groove. This enables multi-point axial clamping of long strip-shaped workpieces, avoiding workpiece skewing or local stress concentration caused by single-point clamping, and improving clamping reliability and machining accuracy.
[0014] A further improvement of this invention is that one of the radial limiting brackets can move relative to the other radial limiting bracket along the length of the axial limiting groove. This enables the formation of an adjustable symmetrical support structure; it adapts to flange coupling body cylindrical sections of different lengths, and by adjusting the distance between the two radial limiting brackets, it ensures full coverage support for the workpiece, thus improving the applicability of the device.
[0015] A further improvement of this utility model is that the aforementioned frame is provided with multiple fixing screw holes, which are arranged along the length of the axial limiting groove and correspond to the movable radial limiting bracket. The movable radial limiting bracket is threaded with an adjusting bolt that mates with the fixing screw holes. The fixing screw holes mate with the adjusting bolts, and the movable radial limiting bracket mates with different fixing screw holes via the adjusting bolts; this achieves rapid positioning and locking of the radial limiting bracket spacing, allowing adjustment without complex tools and improving processing efficiency. The preset layout of the fixing screw holes can meet the requirements of common workpiece sizes, balancing flexibility and positioning accuracy.
[0016] A further improvement of this invention is that at least two adjusting bolts are provided, and these at least two adjusting bolts are arranged along the length of the axial limiting groove. This forms a double-point fixation for the movable radial limiting bracket, avoiding bracket skewing or loosening that may occur with single-bolt fixation, and improving structural stability.
[0017] A further improvement of this invention is that a roller is provided on the arc-shaped surface of the aforementioned radial limiting bracket. When the flange coupling body needs to be rotated to adjust the keyway position, the roller can reduce the friction between the workpiece and the bracket, making the operation more convenient and avoiding scratching the workpiece surface; the roller support allows the workpiece to rotate slightly in the radial direction, which is convenient for centering or adjusting the processing angle and improves processing flexibility.
[0018] As can be seen from the above technical solution, the beneficial effects of this utility model are: the cylindrical section of the flange coupling body is placed on two radial limiting brackets, the annular boss of the flange coupling body is placed in the axial limiting groove, and the height adjustment component is used to adjust the height of the axial limiting groove so that the axis of the cylindrical section is horizontal, which facilitates the operator to process the keyway on the inner wall of the cylindrical section, helps to reduce labor intensity, and at the same time, the axial limiting groove limits the axial movement of the flange coupling body.
[0019] The flange coupling body is fixed axially and radially by a dual limiting structure consisting of an axial limiting bracket and a radial limiting bracket. The top surface of the radial limiting bracket is an inclined arc surface and is symmetrically arranged to fit the cylindrical section shape of the flange coupling body and provide stable radial support. The axial limiting bracket is installed through a height adjustment component to accommodate workpieces of different specifications. Attached Figure Description
[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.
[0021] Figure 1 This is a side view of a specific embodiment of the present invention.
[0022] Figure 2 This is a front structural diagram of a specific embodiment of the present utility model.
[0023] Figure 3 This is a schematic diagram of the axial limiting bracket structure of a specific embodiment of the present utility model.
[0024] Figure 4 This is a schematic diagram of the radial limiting bracket structure according to a specific embodiment of the present utility model.
[0025] In the attached diagram: 10. Stand; 11. Fixing screw hole one; 20. Radial limiting bracket; 21. Adjusting bolt one; 22. Roller shaft; 30. Axial limiting bracket; 31. Support platform; 311. Fixing screw hole two; 312. Adjusting bolt two; 313. Lock nut; 32. Axial limiting groove; 40. Flange coupling body; 41. Cylindrical section; 42. Annular boss; 50. Extrusion plate; 51. Adjusting screw; 52. Adjusting handwheel. Detailed Implementation
[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0027] like Figures 1 to 4 As shown, this utility model discloses a support device for milling keyways in flange couplings, including a frame 10. The frame 10 is provided with an axial limiting bracket 30 and a radial limiting bracket 20. The top surface of the radial limiting bracket 20 is an inclined arc surface and there are two of them. The two radial limiting brackets 20 are symmetrically arranged.
[0028] One of the radial limiting brackets 20 can move relative to the other radial limiting bracket 20 along the length direction of the axial limiting groove 32. This can form an adjustable symmetrical support structure; adaptable to flange coupling body 40 cylindrical section 41 of different lengths, by adjusting the distance between the two radial limiting brackets 20 to ensure full coverage support for the workpiece and improve the applicability of the device.
[0029] The frame 10 is provided with multiple fixing screw holes 11, which are arranged along the length of the axial limiting groove 32 and correspond to the movable radial limiting bracket 20. The movable radial limiting bracket 20 is threaded with adjusting bolts 21 that mate with the fixing screw holes 11. The fixing screw holes 11 mate with the adjusting bolts 21, and the movable radial limiting bracket 20 mates with different fixing screw holes 11 via the adjusting bolts 21. This allows for rapid positioning and locking of the spacing between the radial limiting brackets 20, enabling adjustments without complex tools and improving processing efficiency. The preset layout of the fixing screw holes 11 can meet the requirements of common workpiece sizes, balancing flexibility and positioning accuracy. At least two adjusting bolts 21 are provided, arranged along the length of the axial limiting groove 32. This forms a double-point fixation for the movable radial limiting bracket 20, avoiding bracket skewing or loosening that may occur with single-bolt fixation and improving structural stability.
[0030] The radial limiting bracket 20 has rollers 22 on its arc-shaped surface. When the flange coupling body 40 needs to be rotated to adjust the keyway position, the rollers 22 can reduce the friction between the workpiece and the bracket, making operation more convenient and avoiding scratches on the workpiece surface. The roller support allows the workpiece to rotate slightly radially, facilitating centering or adjusting the machining angle and improving machining flexibility. Two rollers 22 are provided on the radial limiting bracket 20 to improve adaptability to support cylindrical sections 41 of different specifications.
[0031] An axial limiting bracket 30 is provided on one side of each of the two radial limiting brackets 20. The axial limiting bracket 30 includes a support platform 31 and an axial limiting groove 32. The axial limiting groove 32 is mounted on the support platform 31 via a height adjustment assembly. The cylindrical section 41 of the flange coupling body 40 is placed on both radial limiting brackets 20. The annular boss 42 of the flange coupling body 40 is placed in the axial limiting groove 32. The height of the axial limiting groove 32 is adjusted by operating the height adjustment assembly, so that the axis of the cylindrical section 41 is horizontal. This facilitates the operator to process the keyway on the inner wall of the cylindrical section 41, which helps to reduce labor intensity. At the same time, the axial limiting groove 32 restricts the axial movement of the flange coupling body 40.
[0032] The height adjustment assembly includes an adjusting bolt 312 and a locking nut 313. The adjusting bolt 312 passes through the axial limiting groove 32 and is threaded into the fixing screw hole 311 on the top of the support platform 31. The locking nut 313 is located below the axial limiting groove 32 and is threaded onto the adjusting bolt 312. The height adjustment assembly uses the combination of the adjusting bolt 312 and the locking nut 313 to achieve stepless height adjustment of the axial limiting groove 32 through threaded connection. It can flexibly adapt to flange coupling bodies 40 of different sizes, especially adapting to the radial thickness of the annular boss 42, improving the versatility and compatibility of the device.
[0033] At least two support platforms 31 are provided, and the at least two support platforms 31 are evenly distributed along the length direction of the axial limiting groove 32. The provision of at least two support platforms 31 and their even distribution along the length direction of the axial limiting groove 32 forms multi-point support; this enhances the overall rigidity of the axial limiting bracket 30, prevents the long strip workpiece from bending or shaking due to uneven force during processing, and further improves processing stability.
[0034] An extrusion plate 50 is also provided within the axial limiting groove 32. An adjusting screw 51, capable of abutting against the extrusion plate 50, is threaded onto the side wall of the axial limiting groove 32 opposite to the radial limiting bracket 20. An adjusting handwheel 52 is provided at the end of the adjusting screw 51 opposite to the extrusion plate 50. The extrusion plate 50 cooperates with the adjusting screw 51. Rotating the adjusting screw 51 pushes the extrusion plate 50 against the workpiece, preventing axial movement of the annular boss 42 within the axial limiting groove 32 and improving clamping efficiency. Furthermore, the contact surface between the extrusion plate 50 and the workpiece is evenly stressed, avoiding surface damage to the workpiece that may occur with traditional rigid clamping.
[0035] The adjusting screw 51 is rotatably connected to the pressing plate 50. The adjusting screw 51 and the pressing plate 50 are rotatably connected, for example, by a bearing connection; this prevents the pressing plate 50 from rotating with the adjusting screw 51 during adjustment; it ensures that the pressing plate 50 moves only along the axial direction, accurately pressing against the workpiece, simplifying the operation process, and improving clamping efficiency.
[0036] At least two adjusting lead screws 51 are provided, and the at least two adjusting lead screws 51 are arranged along the length direction of the axial limiting groove 32. This enables multi-point axial clamping of long strip-shaped workpieces, avoiding workpiece skewing or local stress concentration caused by single-point clamping, and improving clamping reliability and machining accuracy.
[0037] The present invention discloses a support device for milling keyways in flange couplings. The cylindrical section of the flange coupling body is placed on two radial limiting brackets, and the annular boss of the flange coupling body is placed in the axial limiting groove. The height adjustment component is used to adjust the height of the axial limiting groove, so that the axis of the cylindrical section is horizontal, which facilitates the operator to process the keyway on the inner wall of the cylindrical section and helps to reduce labor intensity. At the same time, the axial limiting groove restricts the axial movement of the flange coupling body.
[0038] The flange coupling body 40 is fixed axially and radially by adopting a dual limiting structure of axial and radial limiting brackets. The top surface of the radial limiting bracket is an inclined arc surface and is symmetrically arranged to fit the cylindrical section shape of the flange coupling body and provide stable radial support. The axial limiting bracket is installed through a height adjustment component to accommodate workpieces of different specifications.
[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A support device for milling keyways in a flange coupling body, comprising a frame (10), characterized in that, The platform (10) is provided with an axial limiting bracket (30) and a radial limiting bracket (20); the top surface of the radial limiting bracket (20) is an inclined arc surface and there are two of them, and the two radial limiting brackets (20) are symmetrically arranged; the axial limiting bracket (30) is provided on one side of the two radial limiting brackets (20); the axial limiting bracket (30) includes a support platform (31) and an axial limiting groove (32), and the axial limiting groove (32) is installed on the support platform (31) by a height adjustment component.
2. The support device for milling keyways in a flange coupling body according to claim 1, characterized in that, The height adjustment assembly includes an adjusting bolt (312) and a locking nut (313); the adjusting bolt (312) passes through the axial limiting groove (32) and is threaded into the fixing screw hole (311) on the top of the support platform (31); the locking nut (313) is located below the axial limiting groove (32) and is threaded onto the adjusting bolt (312).
3. The support device for milling keyways in a flange coupling body according to claim 2, characterized in that, The support platform (31) is provided in at least two, and the at least two support platforms (31) are evenly distributed along the length direction of the axial limiting groove (32).
4. The support device for milling keyways in a flange coupling body according to claim 1, characterized in that, An extrusion plate (50) is also provided in the axial limiting groove (32). An adjusting screw (51) that can abut against the extrusion plate (50) is threaded on the side wall of the axial limiting groove (32) away from the radial limiting bracket (20).
5. A support device for milling keyways in a flange coupling body according to claim 4, characterized in that, The adjusting screw (51) is rotatably connected to the extrusion plate (50).
6. A support device for milling keyways in a flange coupling body according to claim 5, characterized in that, At least two adjusting screws (51) are provided, and the at least two adjusting screws (51) are arranged along the length direction of the axial limiting groove (32).
7. A support device for milling keyways in a flange coupling body according to claim 5, characterized in that, One of the radial limiting brackets (20) can move relative to the other radial limiting bracket (20) along the length direction of the axial limiting groove (32).
8. A support device for milling keyways in a flange coupling body according to claim 7, characterized in that, The platform (10) is provided with multiple fixing screw holes (11), which are arranged along the length direction of the axial limiting groove (32) and correspond to the movable radial limiting bracket (20); the movable radial limiting bracket (20) is threaded with an adjusting bolt (21) that can cooperate with the fixing screw holes (11).
9. A support device for milling keyways in a flange coupling body according to claim 8, characterized in that, The adjusting bolt (21) is provided in at least two parts, and the at least two adjusting bolts (21) are arranged along the length direction of the axial limiting groove (32).
10. A support device for milling keyways in a flange coupling body according to claim 9, characterized in that, The radial limiting bracket (20) has a roller (22) on its arc-shaped surface.