Fan-shaped plate outer circle processing auxiliary tool
By using a combination of bearing shaft and clamping block in the machining of the outer circle of the sector plate, the problem of poor machining accuracy of the outer circle of the sector plate was solved, and high-precision and stable machining results were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIZHONG GRP (HEILONGJIANG) HEAVY IND CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-19
AI Technical Summary
In the existing technology, the machining process of the outer circle of the sector plate has poor precision and the straightness of the arc top surface is unstable, which affects the assembly accuracy of the drum and the product quality.
The structure employs a combination of a bearing shaft and multiple clamping blocks. The bearing plane extending axially on the bearing shaft abuts against the boss of the sector plate. The top of the clamping blocks abuts against the boss from above and is symmetrically fixed in pairs along the axial direction to ensure that the central axis is parallel. The stability is improved by combining the rib positioning groove and the damping structure.
By ensuring the stable fixing of the sector plate and the parallelism of the central axis, the machining accuracy and stability of the outer circle of the sector plate are improved, thus guaranteeing the machining quality.
Smart Images
Figure CN224373416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and more specifically, to an auxiliary tool for machining the outer circle of a fan-shaped plate. Background Technology
[0002] The original process for machining the outer circle of a sector plate involved using a chain to fix the sector plate to the process square shaft for rough machining, followed by polishing and finishing. This method required repeated chain transmission during machining, resulting in poor precision of the outer circle of the sector plate and unstable straightness of the arc top surface. Ultimately, this affected the precision of the assembled roll and the quality of the product. Utility Model Content
[0003] The problem this invention addresses is: how to improve the machining quality of the outer circle of a sector plate.
[0004] To solve the above problems, this utility model provides a machining tool for the outer circle of a sector plate, including a bearing shaft and a plurality of clamping blocks. The bearing shaft includes a bearing plane extending along its axial direction. The bearing plane is used to abut against the table surface of a boss on the sector plate. The bottom of each clamping block is detachably connected to the bearing plane. The top of each clamping block is bent toward the boss and used to abut against the boss from the side of the boss away from the table surface. The plurality of clamping blocks are distributed in pairs along the axial direction of the bearing shaft, and each pair of clamping blocks is symmetrical about the boss.
[0005] Optionally, two parallel ribs are provided on the bearing plane, and the area enclosed by the two ribs and the bearing plane forms a positioning groove. The positioning groove extends along the axial direction of the bearing shaft and engages with the boss.
[0006] Optionally, the clamping block includes a base and a clamping rod. The bottom of the clamping rod is connected to the base, and the top of the clamping rod is bent toward the boss. The base is provided with two through holes symmetrical about the clamping rod, and locking bolts are respectively provided in the two through holes. The base is detachably connected to the bearing shaft through the locking bolts.
[0007] Optionally, a groove is provided on the bearing plane, and the base is disposed in the groove.
[0008] Optionally, a rubber pad is provided on the clamping rod, and the clamping rod abuts against the boss through the rubber pad.
[0009] Optionally, the clamping rod has a relief slope on the outer wall at the bend, the relief slope being used to avoid the fan-shaped portion of the fan-shaped plate.
[0010] Optionally, a plurality of gaskets are provided between the clamping block and the bearing plane.
[0011] Optionally, the end of the clamping rod that abuts against the boss is provided with an anti-slip texture structure, and the anti-slip texture structure is connected to the rubber pad.
[0012] Optionally, the auxiliary tool for machining the outer circle of the sector plate further includes a damping structure, which is connected between the bearing plane and the boss.
[0013] Optionally, at least two bearing planes are provided, and the two bearing planes are symmetrical about the axis of the bearing shaft.
[0014] Compared with related technologies, the auxiliary tool for machining the outer circle of the sector plate of this utility model utilizes the bearing plane extending along the axial direction of the bearing shaft to abut against the boss of the sector plate, which can keep the central axis of the sector plate parallel to the axis of the bearing shaft. This allows the orientation of the sector surface of the sector plate to the milling cutter to be precisely adjusted by rotating the bearing shaft, ensuring machining accuracy. Then, the bottom of the clamping block is detachably connected to the bearing plane, and the top of the clamping block, which bends towards the boss, abuts against the boss from above. The boss is clamped between the top of the clamping block and the bearing plane. By having multiple clamping blocks distributed along the axial direction of the bearing shaft and symmetrical about the boss, the sector plate can be stably fixed on the bearing shaft to ensure the stability of the sector plate during machining, thereby ensuring the machining quality of the sector plate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the fan-shaped plate clamping auxiliary tool in an embodiment of the present utility model.
[0016] Figure 2 This is a schematic diagram of the clamping block in an embodiment of the present utility model.
[0017] Explanation of reference numerals in the attached figures:
[0018] 1-Bearing shaft; 11-Bearing plane; 12-Rib plate; 2-Clamping block; 21-Base; 22-Clamping rod; 221-Avoidance slope; 3-Fan-shaped plate; 31-Boss. Detailed Implementation
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0020] In the attached diagram, the X-axis represents the horizontal position, with the positive direction of the X-axis (where the arrow points) indicating the right side and the negative direction (opposite to the positive direction) indicating the left side. The Y-axis represents the front-to-back position, with the positive direction of the Y-axis (where the arrow points) indicating the front and the negative direction (opposite to the positive direction) indicating the rear. The Z-axis represents the vertical position, with the positive direction of the Z-axis (where the arrow points) indicating the top and the negative direction (opposite to the positive direction) indicating the bottom. It should be noted that the aforementioned representations of the X, Y, and Z axes are for ease of description and simplification of the invention, and do not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.
[0021] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.
[0022] Combination Figure 1 As shown, this utility model provides a machining tool for the outer circle of a fan-shaped plate, including a bearing shaft 1 and a plurality of clamping blocks 2. The bearing shaft 1 includes a bearing plane 11 extending along its axial direction. The bearing plane 11 is used to abut against the table surface of the boss 31 of the fan-shaped plate 3. The bottom of each clamping block 2 is detachably connected to the bearing plane 11. The top of each clamping block 2 is bent toward the boss 31 and is used to abut against the boss 31 from the side of the boss 31 away from the table surface. The plurality of clamping blocks 2 are distributed in pairs along the axial direction of the bearing shaft 1, and each pair of clamping blocks 2 is symmetrical about the boss 31.
[0023] Specifically, the radial cross-section (i.e., the cross-section parallel to XZ) of the bearing shaft 1 is square. Among the four side walls of the bearing shaft 1, the bearing plane 11 can be the plane of the upper side wall, or the upper side of the bearing shaft 1. The sector plate 3 includes a sector portion and a boss 31 connected to the inner side of the sector portion. When using the auxiliary tool of this embodiment, the boss 31 of the sector plate 3 to be processed is placed flat on the bearing plane 11 by hoisting. By extending the bearing plane 11 along the axis of the bearing shaft 1, it can be ensured that the central axis of the sector plate 3 is parallel to the axis of the bearing shaft 1. Then, multiple clamping blocks 2 are arranged on the left and right sides of the boss 31 of the sector plate 3. The bottom of each clamping block 2 is connected to the bearing shaft 1, and the top of each clamping block 2 abuts against the boss 31 from above. The clamping blocks 2 on both sides of the boss 31 are symmetrical to each other, so as to be axially aligned with the bearing shaft 1. Multiple pairs of clamping blocks 2 are arranged. After the multiple pairs of clamping blocks 2 are connected to the bearing shaft 1, the tops of the multiple pairs of clamping blocks 2 bent towards the boss 31 can press the boss 31 of the sector plate 3 against the bearing plane 11 to achieve clamping of the sector plate 3. Then, the sector plate 3 and the bearing shaft 1 can be transferred to the machining station by hoisting. The bearing shaft 1 is then installed on the milling machine. The bearing shaft 1 is rotated so that the sector surface of the sector plate 3 faces the milling cutter for machining. During the machining process, the connection between the tops of the multiple clamping blocks 2 and the boss 31 can prevent the sector plate 3 from moving, so as to ensure the stability of the sector plate 3 during the machining process and thus ensure the machining quality.
[0024] Therefore, in this embodiment, by using the bearing plane 1 extending axially on the bearing shaft 1 to abut against the boss 31 of the sector plate 3, the central axis of the sector plate 3 can be kept parallel to the axis of the bearing shaft 1. This allows the orientation of the sector surface of the sector plate 3 to be precisely aligned with the milling cutter by rotating the bearing shaft 1, ensuring machining accuracy. Then, the bottom of the clamping block 2 is detachably connected to the bearing plane 11, and the top of the clamping block 2, which bends towards the boss 31, abuts against the boss 31 from above. The boss 31 is then clamped between the top of the clamping block 2 and the bearing plane 11. By having multiple clamping blocks 2 distributed axially along the bearing shaft 1 and symmetrical about the boss 31, the sector plate 3 can be stably fixed on the bearing shaft 1, ensuring the stability of the sector plate 3 during machining and thus ensuring the machining quality of the sector plate 3.
[0025] Optionally, combined Figure 1 As shown, two parallel ribs 12 are provided on the bearing plane 11. The area enclosed by the two ribs 12 and the bearing plane 11 forms a positioning groove. The positioning groove extends along the axial direction of the bearing shaft 1 and is engaged with the boss 31.
[0026] Specifically, each rib 12 can be welded onto the bearing plane 11. The two ribs 12 are parallel and extend along the axial direction of the bearing shaft 1. The area enclosed by the two ribs 12 and the bearing plane 11 forms a positioning groove. In use, the positioning groove engages with the boss 31, thereby achieving the pre-fixation of the boss 31 on the bearing plane 11. Then, the sector plate 3 is fixed onto the bearing shaft 1 by connecting multiple clamping blocks 2 with the boss 31.
[0027] Thus, a positioning groove is formed by the area enclosed by the two ribs 12 and the bearing plane 11. The positioning groove extends along the axial direction of the bearing shaft 1 and engages with the boss 31. After the boss 31 engages with the positioning groove, the axis of the sector plate 3 is parallel to the axis of the bearing shaft 1. This ensures that the sector surface of the sector plate 3 can be fully ground during the grinding process, thus guaranteeing the processing quality.
[0028] Optionally, combined Figure 1 and Figure 2 As shown, the clamping block 2 includes a base 21 and a clamping rod 22. The bottom of the clamping rod 22 is connected to the base 21, and the top of the clamping rod 22 is bent toward the boss 31. The base 21 is provided with two through holes symmetrical about the clamping rod 22. Locking bolts are provided in the two through holes respectively. The base 21 is detachably connected to the bearing shaft 1 through the locking bolts.
[0029] Specifically, the clamping rod 22 is in the shape of an inverted L. The bottom of the clamping rod 22 is connected to the base 21, and the top of the clamping rod 22 is bent toward the boss 31. The base 21 has a cuboid structure and two through holes symmetrical about the clamping rod 22 are provided on the base 21. Locking bolts are provided in the two through holes respectively. The base 21 is detachably connected to the bearing shaft 1 through the locking bolts.
[0030] Thus, the bottom of the clamping rod 22 is connected to the base 21, and the top of the clamping rod 22 is bent towards the boss 31, forming a hook-shaped structure. The top of the clamping rod 22 can abut against the boss 31 from above. The base 21 is provided with two symmetrical through holes about the clamping rod 22, and each of the two through holes is provided with a locking bolt. The base 21 is detachably connected to the bearing shaft 1 through the locking bolts. After the base 21 is connected to the bearing shaft 1, the locking bolts in the two through holes can balance the force on the base 21, prevent the base 21 from being unbalanced, thereby improving the connection stability between the base 21 and the bearing shaft 1, and thus ensuring the stability of the abutment between the clamping rod 22 and the boss 31.
[0031] Optionally, a groove is provided on the bearing plane 11, and the base 21 is disposed in the groove.
[0032] Specifically, the opening of the groove faces upward, and one groove corresponds to one base 21. When in use, the base 21 can be snapped into the groove.
[0033] Thus, by providing a groove on the bearing plane 11 and placing the base 21 in the groove, the base 21 can be quickly positioned, ensuring the stability of the base 21 during the connection process with the bearing shaft 1, thereby improving the connection efficiency between the base 21 and the bearing shaft 1.
[0034] Optionally, a rubber pad is provided on the clamping rod 22, and the clamping rod 22 abuts against the boss 31 through the rubber pad.
[0035] Specifically, a rubber pad is installed on the top of the clamping rod 22, that is, the end of the clamping rod 22 that abuts against the boss 31. In use, the rubber pad is connected between the top of the clamping rod 22 and the boss 31 to prevent the clamping rod 22 from scratching the boss 31 and to reduce the vibration during the processing of the sector plate 3.
[0036] Thus, by providing a rubber pad on the clamping rod 22, the clamping rod 22 abuts against the boss 31 through the rubber pad. The rubber pad can achieve an indirect connection between the clamping rod 22 and the boss 31, thereby preventing the clamping rod 22 from scratching the boss 31, and can use the rubber pad to reduce mechanical vibration during the processing, so as to ensure the stability of the boss 31 and thus ensure the processing quality.
[0037] Optionally, combined Figure 1 As shown, the clamping rod 22 has a relief slope 221 on the outer wall of the bend, which is used to avoid the fan-shaped part of the fan-shaped plate 3.
[0038] Specifically, the outer side of the clamping rod 22 refers to the end of the clamping rod 22 that is away from the boss 31. The clamping rod 22 is in the shape of an inverted L. The avoidance slope 221 is located at the corner of the clamping rod 22 and is inclined from the clamping rod 22 toward the boss 31.
[0039] Thus, a clearance slope 221 is provided on the outer wall of the clamping rod 22 at the bend. The clearance slope 221 is used to avoid the fan-shaped part of the fan-shaped plate 3. The clearance slope 221 increases the distance between the top of the clamping rod 22 and the fan-shaped part of the fan-shaped plate 3 to avoid collision and interference between the clamping rod 22 and the fan-shaped plate 3.
[0040] Optionally, a plurality of gaskets are provided between the clamping block 2 and the bearing plane 11.
[0041] Specifically, depending on the number of shims used, the position of the clamping block 2 in the vertical direction can be adjusted to improve the applicability of the clamping block 2.
[0042] Optionally, the end of the clamping rod 22 that abuts against the boss 31 is provided with an anti-slip texture structure, which is connected to the rubber pad.
[0043] Specifically, the anti-slip texture structure can be serrated or wavy. In use, the anti-slip texture structure can be embedded in the rubber pad to increase the friction between the clamping rod 22 and the rubber pad, thereby improving the stability of the connection between the upper end of the clamping rod 22 and the rubber pad.
[0044] Optionally, the auxiliary tool for machining the outer circle of the sector plate also includes a damping structure, which is connected between the bearing plane 11 and the boss 31.
[0045] Specifically, the damping structure has a certain elastic deformation capacity. In use, the damping structure is connected between the bearing plane 11 and the boss 31. Under the influence of the gravity of the sector plate 3, the damping structure applies an upward force to the boss 31. At this time, the clamping block 2 abuts against the boss 31 from above. The upward force applied by the damping structure to the boss 31 can improve the pressing effect of the clamping block 2 on the boss 31, thereby improving the stability of the clamping block 2 pressing against the boss 31.
[0046] Optionally, combined Figure 1 As shown, at least two bearing planes 11 are provided, and the two bearing planes 11 are symmetrical about the axis of bearing shaft 1.
[0047] Specifically, as mentioned above, the planes on the upper and lower sidewalls of the bearing shaft 1 are bearing planes 11, and the two bearing planes 11 are symmetrical about the axis of the bearing shaft 1. In use, sector plates 3 can be fixed on the two bearing planes 11 respectively. During grinding, after one sector plate 3 is processed, the bearing shaft 1 can be directly rotated 180° clockwise to process the next sector plate 3.
[0048] Thus, at least two bearing planes 11 are provided, and the two bearing planes 11 are symmetrical about the axis of the bearing shaft 1. The two bearing planes 11 can fix the two sector plates 3 on the bearing shaft 1. During the processing, the two bearing planes 11 can be switched by rotating the bearing shaft 1 to improve the processing efficiency of the sector plates 3.
[0049] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A machining tool for the outer circle of a sector-shaped plate, characterized in that, The device includes a bearing shaft (1) and a plurality of clamping blocks (2). The bearing shaft (1) includes a bearing plane (11) extending along its axial direction. The bearing plane (11) is used to abut against the table surface of the boss (31) of the fan-shaped plate (3). The bottom of each clamping block (2) is detachably connected to the bearing plane (11). The top of each clamping block (2) is bent toward the boss (31) and used to abut against the boss (31) from the side of the boss (31) away from the table surface. The plurality of clamping blocks (2) are distributed in pairs along the axial direction of the bearing shaft (1), and each pair of clamping blocks (2) is symmetrical about the boss (31).
2. The auxiliary tool for machining the outer circle of a sector plate according to claim 1, characterized in that, Two parallel ribs (12) are provided on the bearing plane (11). The area enclosed by the two ribs (12) and the bearing plane (11) forms a positioning groove. The positioning groove extends along the axial direction of the bearing shaft (1) and engages with the boss (31).
3. The auxiliary tool for machining the outer circle of a sector plate according to claim 1, characterized in that, The clamping block (2) includes a base (21) and a clamping rod (22). The bottom of the clamping rod (22) is connected to the base (21), and the top of the clamping rod (22) is bent toward the boss (31). The base (21) is provided with two through holes symmetrical about the clamping rod (22). Locking bolts are respectively provided in the two through holes. The base (21) is detachably connected to the bearing shaft (1) through the locking bolts.
4. The auxiliary tool for machining the outer circle of a sector plate according to claim 3, characterized in that, A groove is provided on the bearing plane (11), and the base (21) is disposed in the groove.
5. The auxiliary tool for machining the outer circle of a sector plate according to claim 3, characterized in that, A rubber pad is provided on the clamping rod (22), and the clamping rod (22) abuts against the boss (31) through the rubber pad.
6. The auxiliary tool for machining the outer circle of a sector plate according to claim 5, characterized in that, The clamping rod (22) has a relief slope (221) on the outer side wall at the bend, which is used to avoid the fan-shaped part of the fan-shaped plate (3).
7. The auxiliary tool for machining the outer circle of a sector plate according to claim 1, characterized in that, Multiple gaskets are provided between the clamping block (2) and the bearing plane (11).
8. The auxiliary tool for machining the outer circle of a sector plate according to claim 5, characterized in that, The end of the clamping rod (22) that abuts against the boss (31) is provided with an anti-slip texture structure, which is connected to the rubber pad.
9. The auxiliary tool for machining the outer circle of a sector plate according to claim 1, characterized in that, It also includes a damping structure connected between the bearing plane (11) and the boss (31).
10. The auxiliary tool for machining the outer circle of a sector plate according to claim 1, characterized in that, At least two bearing planes (11) are provided, and the two bearing planes (11) are symmetrical about the axis of the bearing shaft (1).