Circumferential equipartition beveling tool for annular part and beveling method

Abstract

The invention relates to a tool and method for evenly and obliquely cutting the circumference of an annular part. According to the tool for evenly dividing and beveling the circumference of the annular part, after the annular part is hoisted on the round rotating disc on the ground, the annular part, the round rotating disc and the bottom plate are integrally hoisted on the inclined supporting face of the triangular frame, and compared with the mode that the annular part with the large size and the heavy weight is clamped on the inclined face, clamping is more convenient and safer; compared with the prior art that a motor rotating shaft is adopted for driving, rotation of the whole circular rotating disc and the annular part on the inclined plane is achieved through a coupler, a crossed roller bearing and a connecting disc, and the rotating process is more stable; and under the locking of the cylindrical positioning pin and the fixing of the pressing plate, the overall rotating process of the circular rotating disc and the annular part can be stable, the circular rotating disc and the annular part can rotate in place and can be stable during cutting, and therefore circumferential equal-division beveling of the annular part with the large diameter size and the heavy weight can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of evenly divided beveling of the circumference of annular parts, and in particular to a tool and a beveling method for evenly divided beveling of the circumference of annular parts. Background Art

[0002] In the prior art, the technical difficulties of evenly dividing the circumference and beveling large-diameter I-shaped parts (large-diameter annular parts) are as follows:

[0003] 1) The part is an annular I-shaped structure with a large diameter (e.g., a diameter of φ2042mm) and a heavy weight (e.g., the weight of the annular I-shaped structure is 1028.8kg). It is difficult to evenly divide the circumference into 24 parts by beveling.

[0004] 2) The DK7780 wire-cut EDM machine requires special tooling to assist in clamping and positioning when cutting the part, which is difficult to design and manufacture.

[0005] 3) When the parts are cut, they need to be rotated 15° along the axis and beveled, which makes clamping and positioning more difficult.

[0006] The Chinese utility model patent with authorization announcement number CN221269933U discloses a cutting auxiliary device based on wire cutting, which uses a fixing component to fix the parts to be cut, uses a rotating component to horizontally rotate the fixing component, and uses an angle adjustment component to achieve bevel cutting. However, the fixing component can only be used to fix small parts, and the rotating component is driven by a motor. For an annular I-shaped structure with a larger diameter and heavier weight, it is impossible to achieve positioning, clamping and cutting, that is, it is impossible to achieve circumferentially evenly divided bevel cutting of annular parts, and the circumferentially evenly divided bevel cutting parts are difficult to be stably fixed, making it impossible to continuously and stably perform circumferentially evenly divided bevel cutting on the annular parts. Summary of the invention

[0007] The purpose of the present invention is to overcome the deficiency of the existing wire cutting beveling tool in the prior art that it is unable to achieve circumferentially uniform beveling of annular parts with larger diameter and heavier weight, and to provide a tool and a beveling method for circumferentially uniform beveling of annular parts.

[0008] In a first aspect, the present invention provides a tool for evenly dividing and beveling the circumference of an annular part, comprising:

[0009] A tripod, the tripod having an inclined support surface, and a limit device on the lower side of the inclined support surface;

[0010] A bottom plate, the bottom plate can be placed on the inclined support surface and limited by a limiting device, a first mounting hole penetrating the bottom plate is provided in the middle of the bottom plate, and hangers are provided at the four corners of the bottom plate;

[0011] A circular turntable is arranged above the bottom plate. A second mounting hole penetrating the circular turntable is provided at the center of the circular turntable. One of the bottom plate and the circular turntable is provided with a circle of first positioning holes, and the other is provided with second positioning holes.

[0012] A crossed roller bearing, which includes an inner ring and an outer ring that mesh with each other, is arranged in the second mounting hole at the center of the circular turntable.

[0013] A coupling, one end of which is fixed to the bottom plate. The coupling passes through the first mounting hole, and the inner ring is sleeved on the coupling. The other end of the coupling is fixed to the inner ring.

[0014] A connecting plate is arranged above the circular turntable, and the connecting plate is fixedly connected to the outer ring and the circular turntable.

[0015] A number of pressing plates are arranged at intervals circumferentially along the outside of the second mounting hole. The lower ends of the pressing plates are connected to the circular turntable, and there is a gap between the upper ends of the pressing plates and the circular turntable for restricting parts.

[0016] A cylindrical positioning pin can be inserted into the first positioning hole and the corresponding second positioning hole.

[0017] The tooling for circumferentially equally dividing and obliquely cutting the annular part of the present invention connects the circular turntable and the bottom plate into one body through the cooperation of the coupling, the connecting plate, and the crossed roller bearing with the second mounting hole of the circular turntable and the first mounting hole of the bottom plate, so that the circular turntable and the connecting plate can rotate relative to the bottom plate, the coupling, and the inner ring of the crossed roller bearing by using the outer ring of the crossed roller bearing; pressing plates are arranged at intervals circumferentially along the outside of the second mounting hole, and there is a gap between the upper ends of the pressing plates and the circular turntable for restricting parts, so that the annular part can be fixed to the circular turntable in the circumferential direction to ensure that the annular part and the circular turntable form one body; lifting tools are arranged at the four corners of the bottom plate, and the annular part, the circular turntable, and the bottom plate are integrally hoisted on the inclined support surface of the triangular frame by using the lifting tools at the four corners of the bottom plate, and stable support is achieved through the limiting device on the lower side of the inclined support surface. The angle of the annular part, the circular turntable, and the bottom plate as a whole is changed by using the inclined support surface of the triangular frame, so that oblique cutting can be carried out by wire cutting; during the rotation of the circular turntable driving the annular part, the stability of the parts can be ensured by the pressing plates; and by inserting the cylindrical positioning pin into the first positioning hole and the corresponding second positioning hole, it can be ensured that the annular part rotates in place, so that the oblique cutting is stable.

[0018] Since the ring-shaped part is large in size and heavy in weight, the tooling for circumferentially equally dividing and obliquely cutting the ring-shaped part according to the present invention can hoist the ring-shaped part on the ground onto the rotary table and then hoist the ring-shaped part, the rotary table and the bottom plate as a whole onto the inclined support surface of the tripod. Compared with clamping a ring-shaped part with a large size and heavy weight on an inclined surface, the clamping is more convenient and safe; and compared with the prior art that uses a motor rotating shaft to drive, the whole of the rotary table and the ring-shaped part is rotated on the inclined surface through a coupling, a crossed roller bearing and a connecting plate, and the rotation process is more stable; and the cylindrical positioning pin can lock the bottom plate and the rotary table, and the pressing plate can fix the ring-shaped part, which can make the whole rotation process of the rotary table and the ring-shaped part stable, can rotate in place and is stable during cutting, so that the circumferential equal division and oblique cutting of a ring-shaped part with a large diameter size and heavy weight can be realized.

[0019] Preferably, the number of pressing plates corresponds to the number of first positioning holes, and there is a circumferential deviation angle of 1° - 5° between the pressing plate and the corresponding first positioning hole with respect to the rotary table.

[0020] The number of pressing plates corresponds to the number of parts to be cut, and the number of second positioning holes corresponds to the number of parts to be cut, which can ensure circumferential positioning and equal division cutting. And there is a circumferential deviation angle of 1° - 5° between the pressing plate and the corresponding first positioning hole with respect to the rotary table, so that after oblique cutting, the pressing plate can be vertically fixed in the middle of the length of the small parts obtained after cutting, and thus the small parts can be stably fixed, avoiding the dropped of the cut small parts when rotating and cutting to form other small parts, and ensuring the cutting safety and the stability of subsequent cutting.

[0021] Preferably, a circle of hoisting holes is arranged at intervals along the circumference outside the second mounting hole of the rotary table; the distance between the pressing plate and the center of the rotary table is greater than the distance between the first positioning hole and the center of the rotary table, and the distance between the hoisting hole and the center of the rotary table is less than the distance between the first positioning hole and the center of the rotary table.

[0022] A circle of hoisting holes is arranged at intervals along the circumference outside the second mounting hole of the rotary table, which can realize the stable hoisting of the rotary table by using this circle of hoisting holes, and thus it is convenient to connect the rotary table and the bottom plate into one body through the cooperation of the coupling, the connecting plate, the crossed roller bearing, the second mounting hole of the rotary table and the first mounting hole of the bottom plate.

[0023] The pressing plate is farther from the center of the rotary table than the first positioning hole. On the premise of applying to ring-shaped parts of the same volume size, it can reduce the volume and weight of the tooling, save costs, and is convenient for hoisting and use, and can also reduce the interference to the wire cutting work; compared with arranging hoisting holes between the first positioning hole and the pressing plate, the first positioning hole is farther from the center of the rotary table than the hoisting hole, that is, the first positioning hole is closer to the pressing plate, which can better realize positioning.

[0024] Preferably, the first positioning hole is provided on the circular turntable, and the second positioning hole is provided on the bottom plate. The number of the first positioning holes is larger and they are provided on the circular turntable, which is convenient for machining together with the hoisting holes and makes the machining more convenient.

[0025] Preferably, the first positioning holes on the circular turntable and the hoisting holes correspond to each other one by one in the circumferential direction of the circular turntable, which is convenient for machining together with the hoisting holes and makes the machining more convenient.

[0026] Preferably, the lower end of the pressing plate is a fixing part and the upper end is a clamping part;

[0027] The fixing part has a first connecting hole vertically penetrating therethrough; a second connecting hole corresponding to the first connecting hole is provided on the circular turntable, and the second connecting hole and the first connecting hole are connected by a long screw. There is a deviation angle of 1°-5° in the circumferential direction of the circular turntable between the second connecting hole and the corresponding first positioning hole;

[0028] The clamping part includes a vertical plate and a top plate. The bottom of the vertical plate is connected to the top of the fixing part and is located on the side far from the center of the circular turntable. One end of the top plate is connected to the top of the vertical plate and is arranged toward the side far from the center of the circular turntable.

[0029] Adopting the above-mentioned form of the pressing plate, the annular part can be detachably fixed. After the annular part is cut into small parts, the small parts can be fixed by the pressing plate, and each cut small part can be removed by disassembling the pressing plate, which makes the operation more convenient. Moreover, the fixing part of the pressing plate is connected to the circular turntable by a long screw, and the connection is stable. There is a deviation angle of 1°-5° in the circumferential direction of the circular turntable between the second connecting hole and the corresponding first positioning hole, which can make the cut small parts be stressed at the center by the pressing plate, thereby ensuring that the cut small parts can be stably fixed, so as to facilitate the continued oblique cutting of the annular part. The clamping part faces outward, so that the annular part is arranged on the side far from the center of the circular turntable, and further enables the radial dimension of the circular turntable to be set smaller, which is beneficial to cost saving, hoisting use and stable rotation, etc.

[0030] Preferably, the shape of the bottom plate is square; it is convenient for machining and can stably support the circular turntable;

[0031] and / or,

[0032] The connecting plate is respectively fixed to the outer ring and the circular turntable by screws, the coupling is fixed to the inner ring by screws, and the coupling is fixed to the bottom plate by screws; it is convenient for stable connection and ensures the stable rotation process of the circular turntable on the inclined support surface;

[0033] and / or,

[0034] The tripod includes right-angled triangular brackets located on both sides. Each right-angled triangular bracket includes a bottom beam, a vertical beam, and an inclined beam. The bottoms and tops of the vertical beams of the two right-angled triangular brackets are respectively connected by a first cross beam. The right-angled inner sides of the two right-angled triangular brackets are connected by a second cross beam. Above the ends of the bottom beams of the two right-angled triangular brackets that are far from the right angle, they are connected by a third cross beam. The top surfaces of the inclined beams of the two right-angled triangular brackets form an inclined support surface. Limit devices are respectively provided at the bottom ends of the inclined beams of the two right-angled triangular brackets, and the limit devices are limit plates. With the above tripod structure, an inclined but flat inclined support surface is provided for the bottom plate to ensure stable support. Moreover, the right-angle part and the oblique-angle part are respectively strengthened by the first cross beam, the second cross beam, and the third cross beam. On the premise of ensuring that the tripod can be placed stably without affecting it, the structure is strengthened, ensuring the structural strength, and further ensuring the stability during the rotation of the turntable and the bevel cutting.

[0035] And / or, an operation hole is provided at the center of the connecting plate, which can facilitate the screw connection between the connecting plate and the outer ring.

[0036] Preferably, an avoidance groove is provided on the bottom plate to avoid the cutting tool constantly touching the bottom plate during bevel cutting, which can reduce the consumption of the cutting tool and improve the service life of the cutting tool.

[0037] In the second aspect, the present invention provides a method for circumferentially equally dividing and bevel cutting a ring-shaped part. Using the tooling for circumferentially equally dividing and bevel cutting a ring-shaped part as described above, it includes the following steps:

[0038] S1: Connect the bottom plate and the turntable into one body through a coupling, a connecting plate, and a crossed roller bearing, so that the turntable can rotate. Then, fix the turntable by inserting a cylindrical positioning pin into the first positioning hole and the corresponding second positioning hole.

[0039] S2: Lift and install the ring-shaped part on the turntable, and fix the turntable on the turntable through all the pressing plates.

[0040] S3: Lift and install the coupling, the connecting plate, the crossed roller bearing, the turntable, the bottom plate, the ring-shaped part, and the pressing plates as a whole through the four-corner lifting tool on the bottom plate to the inclined support surface of the tripod within the cutting range of the wire cutting device, and use the limit device on the lower side of the inclined support surface to support the bottom plate.

[0041] S4: Cut and truncate the ring-shaped part through the wire cutting device.

[0042] S5: Take out the cylindrical positioning pin, rotate the turntable so that the ring-shaped part rotates until the next first positioning hole aligns with the second positioning hole, and insert the cylindrical positioning pin into the currently aligned first positioning hole and second positioning hole.

[0043] S6: Repeat steps S4 - S5 until the ring-shaped part is equally divided.

[0044] In step S1, the rotating part is connected and completed, and the circular turntable is fixed by inserting cylindrical locating pins into the first locating holes and the corresponding second locating holes to prevent the circular turntable from rotating, thus facilitating the hoisting of the annular part onto the circular turntable in step S2; after the annular part is hoisted onto the circular turntable in step S2, it is fixed by a pressing plate, so that the rotating part and the annular part can form an integral body, and the integral body is hoisted by the four-corner hoist on the bottom plate, which is convenient for adjusting the hoisting posture and is beneficial to the integral hoisting onto the inclined support surface of the tripod in step S3 to form a stable support condition for oblique cutting.

[0045] In steps S4 - S6, the circumference of the annular part is evenly divided and obliquely cut by means of cyclic cutting, removing the cylindrical locating pins, rotating to the next cutting angle, and inserting the cylindrical locating pins.

[0046] In the method for evenly dividing and obliquely cutting the circumference of the annular part according to the present invention, compared with hoisting the part after the tooling is installed, the annular part is first installed on the rotating part of the tooling and then integrally hoisted onto the inclined support surface of the tripod to form a stable support condition for oblique cutting. The hoisting difficulty is lower, and the installation accuracy is better, which is beneficial to improving the safety and stability of the operation and can improve the cutting quality.

[0047] Preferably, the cutting grooves on the circular turntable are machined or corrected according to the cutting traces left by wire cutting on the circular turntable, which can ensure that the positions of the cutting grooves on the circular turntable are more in line with the actual path during oblique cutting of the annular part, and thus can better avoid the cutting tool constantly touching the circular turntable during oblique cutting, reduce the consumption of the cutting tool, and improve the service life of the cutting tool.

[0048] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0049] 1. The present invention provides a tooling for evenly dividing and obliquely cutting the circumference of an annular part. After the annular part is hoisted onto the circular turntable on the ground, the annular part, the circular turntable, and the bottom plate are integrally hoisted onto the inclined support surface of the tripod. Compared with clamping the annular part with larger size and heavier weight on the inclined surface, the clamping is more convenient and safe; and compared with the prior art using a motor shaft to drive, the integral rotation of the circular turntable and the annular part on the inclined surface is realized through a coupling, a crossed roller bearing, and a connecting plate, and the rotation process is more stable; after the locking of the cylindrical locating pins and the fixing of the pressing plate, the integral rotation process of the circular turntable and the annular part can be stable, can rotate in place, and is stable during cutting, so that the circumferential even division and oblique cutting of the annular part with larger diameter and heavier weight can be realized.

[0050] 2. The present invention provides a method for circumferentially equally dividing and obliquely cutting a ring-shaped part. Compared with hoisting the part after installing the tooling, the ring-shaped part is first installed on the rotating part of the tooling, and then the whole is hoisted onto the inclined supporting surface of the tripod, forming stable supporting conditions for oblique cutting. The hoisting difficulty is lower, and the installation accuracy is better, which is beneficial to improving the safety and stability of the operation and can improve the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a schematic structural diagram of the ring-shaped part;

[0052] Figure 2 is a schematic structural diagram of the tooling for circumferentially equally dividing and obliquely cutting the ring-shaped part;

[0053] Figure 3 is Figure 2 the front view of

[0054] Figure 4 is Figure 2 the top view of

[0055] Figure 5 is Figure 2 the bottom view of

[0056] Figure 6 is a schematic diagram of the usage state of the tooling for circumferentially equally dividing and obliquely cutting the ring-shaped part;

[0057] Figure 7 is Figure 6 the front view of

[0058] Figure 8 is a schematic sectional view of the ring-shaped part fixed on the turntable;

[0059] Figure 9 is a schematic structural diagram of the tripod;

[0060] Figure 10 is a schematic structural diagram of the bottom plate;

[0061] Figure 11 is a schematic structural diagram of the turntable;

[0062] Figure 12 is a schematic plan view of the turntable (the dotted lines indicate the radial and circumferential relationships);

[0063] Figure 13 is a schematic structural diagram of the coupling;

[0064] Figure 14 is a schematic sectional view of the coupling;

[0065] Figure 15 is a schematic structural diagram of the crossed roller bearing;

[0066] Figure 16 It is a schematic cross-sectional view of a crossed roller bearing;

[0067] Figure 17 It is a schematic structural view of a connecting plate;

[0068] Figure 18 It is a schematic cross-sectional view of the connecting plate;

[0069] Figure 19 It is a schematic structural view of a pressing plate;

[0070] Figure 20 It is a schematic cross-sectional view of the pressing plate;

[0071] Figure 21 It is a schematic view of the small parts after circumferentially equally dividing and obliquely cutting a fixed annular part of the pressing plate;

[0072] Markings in the figure: 1. Tripod; 11. Bottom beam; 12. Vertical beam; 13. Diagonal beam; 131. Inclined support surface; 14. First cross beam; 15. Second cross beam; 16. Third cross beam; 17. Limiting device;

[0073] 2. Bottom plate; 21. First mounting hole; 22. Second positioning hole; 23. Avoidance groove;

[0074] 3. Rotary disk; 31. Second mounting hole; 32. Hoisting hole; 33. First positioning hole; 34. Second connection hole; 35. Limiting step; 36. Hoisting ring;

[0075] 4. Crossed roller bearing; 41. Inner ring; 42. Outer ring;

[0076] 5. Coupling; 51. Chassis; 52. Middle plate; 53. Top plate;

[0077] 6. Connecting plate; 61. Operation hole;

[0078] 7. Pressing plate; 71. Fixed part; 712. First connection hole; 72. Buckling part; 721. Vertical plate; 722. Top plate; 723. Inverted buckle;

[0079] 8. Cylindrical positioning pin; 81. Screw; 82. Long screw;

[0080] 9. Annular part; 91. Small part; 92. Cutting seam; 93. Cutting line direction. Specific embodiments

[0081] The present invention will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. Any technology implemented based on the content of the present invention belongs to the scope of the present invention.

[0082] Unless otherwise specified, in the description of the specific embodiments of the present invention, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the invention product / device / equipment is usually used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present invention or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present invention.

[0083] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present invention.

[0084] In addition, when expressions such as "first", "second", "third", etc. appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0085] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be more than 9.

[0086] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / limited, where terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. This connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0087] Embodiment 1

[0088] As Figures 1 - 8 shown, this embodiment provides a tooling for circumferentially equally dividing and obliquely cutting a ring-shaped part 9, including: a tripod 1, a bottom plate 2, a circular turntable 3, a crossed roller bearing 4, a coupling 5, a connecting plate 6, a plurality of pressing plates 7, and a cylindrical positioning pin 8;

[0089] In this embodiment, as Figure 9 shown, the tripod 1 has an inclined support surface 131, and a limiting device 17 is provided below the inclined support surface 131. The inclined support surface 131 and the limiting device 17 provide inclined support for the rotating part; as Figure 8 shown, the rotating part includes an integral body formed by the bottom plate 2, the circular turntable 3, the crossed roller bearing 4, the coupling 5, and the connecting plate 6. The circular turntable 3 can rotate relative to the bottom plate 2 through the crossed roller bearing 4, the coupling 5, and the connecting plate 6; as Figure 1 shown, the cylindrical positioning pin 8 is used to achieve fixation after rotation, ensuring that the circular turntable 3 cannot rotate relative to the bottom plate 2 during oblique cutting; as Figures 6 - 8 shown, a plurality of pressing plates 7 are used to fix the ring-shaped part 9 on the circular turntable 3, so that the ring-shaped part 9 can rotate with the circular turntable 3;

[0090] In an optional implementation manner, as Figure 9 shown, the tripod 1 includes right-angled triangular brackets on both sides. Each right-angled triangular bracket includes a bottom beam 11, a vertical beam 12, and an inclined beam 13. The bottoms and tops of the vertical beams 12 of the two right-angled triangular brackets are respectively connected by a first cross beam 14, and the right-angled inner sides of the two right-angled triangular brackets are connected by a second cross beam 15. The upper ends of the bottom beams 11 of the two right-angled triangular brackets away from the right angle are connected by a third cross beam 16. The top surfaces of the inclined beams 13 of the two right-angled triangular brackets form an inclined support surface 131, and limiting devices 17 are respectively provided at the bottom ends of the inclined beams 13 of the two right-angled triangular brackets. The limiting devices 17 are limiting plates; adopting the above structure of the tripod 1 provides an inclined but flat support surface for the bottom plate 2, ensuring the stability of the support, and being strengthened respectively at the right-angled part and the inclined-angled part by the first cross beam 14, the second cross beam 15, and the third cross beam 16. On the premise of not affecting the stable placement of the tripod 1, the structure is strengthened, ensuring the structural strength, and further ensuring the stability during the rotation of the circular turntable 3 and oblique cutting;

[0091] In this embodiment, as Figure 1 and Figure 10 shown, the bottom plate 2 can be placed on the inclined support surface 131 and limited by the limiting device 17. A first mounting hole 21 penetrating the bottom plate 2 is provided in the middle of the bottom plate 2; the bottom plate 2 is used to provide rotational support for the circular turntable 3; lifting tools are provided at the four corners of the bottom plate 2. The lifting tools can adopt lifting rings 36, etc., that is, the four lifting tools are arranged in a rectangular array and can be used for stable lifting;

[0092] In an alternative embodiment, as Figure 10 shown, the bottom plate 2 is square in shape; it is easy to process, can stably support the circular turntable 3, and can be better supported by the limiting device 17;

[0093] In this embodiment, as Figure 8 and Figure 11 shown, the circular turntable 3 is arranged above the bottom plate 2. A second mounting hole 31 penetrating the circular turntable 3 is provided at the center of the circular turntable 3; the crossed roller bearing 4 includes an inner ring 41 and an outer ring 42 that mesh with each other. The crossed roller bearing 4 is arranged in the second mounting hole 31 at the center of the circular turntable 3; one end of the coupling 5 is fixed to the bottom plate 2. The coupling 5 passes through the first mounting hole 21. The inner ring 41 is sleeved on the coupling 5, and the other end of the coupling 5 is fixed to the inner ring 41; a connection plate 6 is arranged above the circular turntable 3. The connection plate 6 is fixedly connected to the outer ring 42 and the circular turntable 3;

[0094] In this embodiment, through the cooperation of the coupling 5, the connection plate 6 and the crossed roller bearing 4 with the second mounting hole 31 of the circular turntable 3 and the first mounting hole 21 of the bottom plate 2, the circular turntable 3 and the bottom plate 2 are connected as a whole, so that the circular turntable 3 and the connection plate 6 can rotate relative to the bottom plate 2, the coupling 5 and the inner ring 41 of the crossed roller bearing 4 by using the outer ring 42 of the crossed roller bearing 4.

[0095] In an alternative embodiment, as Figure 8 shown, the connection plate 6 is respectively fixed to the outer ring 42 and the circular turntable 3 by screws 81. The coupling 5 is fixed to the inner ring 41 by screws 81, and the coupling 5 is fixed to the bottom plate 2 by screws 81; it is convenient for stable connection and ensures the stable rotation process of the circular turntable 3 on the inclined support surface; among them, as Figures 10 - 18 , a circle of screw 81 holes are provided for two connected components and they are connected by a circle of screws 81. As Figure 13 and Figure 14 shown, the coupling 5 includes a bottom plate 51, a middle plate 52 and a top plate 53 from bottom to top. The bottom plate 51, the middle plate 52 and the top plate 53 are coaxial and their diameters decrease in sequence; the inner ring 41 of the crossed roller bearing 4 is sleeved outside the top plate 53 and is located on the top surface of the middle plate 52. A circle of axial screw 81 holes are circumferentially and spacedly arranged on the middle plate 52 and are connected and fixed to the inner ring 41 by axial screws 81; the bottom plate 2 is larger than the first mounting hole 21. A circle of axial screw 81 holes are circumferentially and spacedly arranged on the bottom plate 51 and are connected and fixed to the bottom plate 2 by axial screws 81, so that the bottom plate 51 can support the bottom plate 2, which is convenient for assembling the circular turntable 3 and the bottom plate 2 to form a rotating part. The screws 81 can be hexagon socket head cap screws M10*40.

[0096] Furthermore, as Figure 1 , Figure 8 , Figure 17 , Figure 18As shown, an operation hole 61 is provided at the center of the connecting plate 6, which facilitates the connection of the connecting plate 6 and the outer ring 42 with the screw 81.

[0097] In this embodiment, one of the bottom plate 2 and the rotary disk 3 is provided with a circle of first positioning holes 33, and the other is provided with second positioning holes 22;

[0098] As Figure 1 and Figure 6 shown, the cylindrical positioning pin 8 can be inserted into the first positioning hole 33 and the corresponding second positioning hole 22. It can ensure that the annular part 9 is fixed after rotating in place, and further make the bevel cutting stable.

[0099] In this embodiment, as Figure 6 shown, all the pressing plates 7 are circumferentially spaced along the outer circumference of the second mounting hole 31. The lower end of the pressing plate 7 is connected to the rotary disk 3, and there is a gap for restricting the part between the upper end of the pressing plate 7 and the rotary disk 3; so that the annular part 9 can be fixed on the rotary disk 3 in the circumferential direction, ensuring that the annular part 9 and the rotary disk 3 form an integral body; and during the rotation of the rotary disk 3 driving the annular part 9, the stability of the part can be ensured through the pressing plate 7; a circular limiting step 35 is provided on the rotary disk 3, and the limiting step 35 is adapted to the inner diameter of the annular part, which can position the installation of the annular part and cooperate with the pressing plate to fix the annular part.

[0100] In an optional embodiment, as Figure 2 and Figure 12 shown, the number of the pressing plates 7 corresponds to the number of the first positioning holes 33, the number of the pressing plates 7 corresponds to the number of cuts of the annular part, and the number of the second positioning holes 22 corresponds to the number of cuts of the annular part, which can ensure circumferential equal division cutting. And there is a 1° - 5° angular deviation between the pressing plate 7 and the corresponding first positioning hole 33 in the circumferential direction of the rotary disk 3, so that after bevel cutting, the pressing plate 7 can be vertically fixed in the middle of the length of the small part 91 obtained after cutting, and further make the small part 91 stably fixed, avoiding the dropped of the cut small part 91 when rotating and cutting to form other small parts 91, ensuring cutting safety and the stability of later cutting.

[0101] A specific implementation manner is that the annular part 9 has an I-shaped structure with a relatively large diameter dimension (the diameter is φ2042 mm). It is necessary to evenly divide the circumference and bevel-cut it into 24 parts. An electric discharge wire cutting machine of model DK7780 is used. When the annular part is cut, the part needs to be rotated 15° along the axis for positioning and then bevel-cut. According to the structural characteristics of the annular part 9, the annular part 9 needs to be fixed on the circular turntable 3, and then the annular part 9, the circular turntable 3, and the bottom plate are fixed on the workbench of the electric discharge wire cutting machine after being tilted 30° by the tripod 1 and cut by wire cutting. Therefore, the number of pressing plates 7 is 24, the number of first positioning holes 33 is 24, and the number of second positioning holes 22 is one. With the center of the circular turntable 3 as the center of the circle, the adjacent two pressing plates 7 are deflected 15°, the adjacent two first positioning holes 33 are deflected 15°, and as Figure 12 shown, the pressing plate 7 is deflected 3° from the corresponding first positioning hole 33. The distances from the first positioning hole 33 and the second positioning hole 22 to the center of the circular turntable 3 are equal, so that the cutting position can be positioned each time by inserting the cylindrical positioning pin 8 into the first positioning hole 33 and the second positioning hole 22, and after the annular part 9 is cut into small parts 91, as Figure 21 shown, the small parts 91 can be fixed at the center by the pressing plate 7 (the cross-section of the small part 91 is similar to a parallelogram, and the pressing plate 7 can act on the center of the parallelogram), ensuring the stability and safety of the subsequent cutting of the annular part 9, and preventing the small parts 91 from falling off, causing instability or eccentricity during the rotation process, and reducing the influence of wire cutting vibration on the cutting accuracy, improving the stability and safety of the entire processing process, and increasing the cutting quality. This tooling scheme solves the technical difficulty of bevel-cutting the annular part into 24 parts, ensuring the technical requirements of the small part dimensions to meet the production needs.

[0102] In this embodiment, as Figure 11 shown, a circle of lifting holes 32 is arranged at intervals along the circumference outside the second mounting hole 31 of the circular turntable 3, which can be used to lift the circular turntable stably, and then it is convenient to connect the circular turntable and the bottom plate into one body through the coupling, the connecting plate, and the crossed roller bearing in cooperation with the second mounting hole of the circular turntable and the first mounting hole of the bottom plate.

[0103] Lifting rings 36 are arranged at the four corners of the bottom plate to realize the overall lifting of the annular part 9, the circular turntable 3, and the bottom plate 2 on the inclined support surface 131 of the tripod 1, which is convenient to adjust the inclination surface during lifting and achieve stable support through the limiting device 17 on the lower side of the inclined support surface 131. The inclined support surface 131 of the tripod 1 is used to change the overall angle of the annular part 9, the circular turntable 3, and the bottom plate 2, so that bevel-cutting can be carried out by wire cutting;

[0104] In an alternative implementation manner, as Figure 1As shown, the distance between the pressing plate 7 and the center of the circular turntable 3 is greater than the distance between the first positioning hole 33 and the center of the circular turntable 3. The pressing plate 7 is farther from the center of the circular turntable 3 compared to the first positioning hole 33. On the premise of applying to annular parts 9 of the same volume, it can reduce the volume and weight of the tooling, save costs, and is convenient for hoisting use. Moreover, it can reduce the interference to the wire cutting work. Compared with setting a hoisting hole 32 between the first positioning hole 33 and the pressing plate 7, the first positioning hole 33 is farther from the center of the circular turntable 3 compared to the hoisting hole 32, that is, the first positioning hole 33 is closer to the pressing plate 7, and better positioning can be achieved.

[0105] In an alternative embodiment, as Figure 10 and Figure 11 shown, the first positioning hole 33 is provided on the circular turntable 3, and the second positioning hole 22 is provided on the bottom plate 2. The number of the first positioning holes 33 is more, and they are provided on the circular turntable 3, which is convenient for machining together with the hoisting hole 32, and the machining is more convenient.

[0106] In an alternative embodiment, the first positioning holes 33 and the hoisting holes 32 on the circular turntable 3 are in one-to-one correspondence in the circumferential direction of the circular turntable, which is convenient for machining together with the hoisting holes 32, and the machining is more convenient.

[0107] In an alternative embodiment, as Figure 8 、 Figure 19 and Figure 20 the lower end of the pressing plate 7 is a fixed part 71, and the upper end is a clamping part 72;

[0108] The fixing part 71 has a first connection hole 712 penetrating vertically; a second connection hole 34 corresponding to the first connection hole 712 is provided on the circular turntable 3, and the second connection hole 34 and the first connection hole 712 are connected by a long screw 82. With the above-mentioned pressing plate 7 form, the annular part 9 can be detachably fixed. After the annular part 9 is cut into small parts 91, the small parts 91 can be fixed by the pressing plate 7, and each cut small part 91 can be removed by disassembling the pressing plate 7, making the operation more convenient. Moreover, the fixing part 71 of the pressing plate 7 is connected to the circular turntable 3 by the long screw 82, and the connection is stable. There is a circumferential deviation angle of 1°-5° between the second connection hole 34 and the corresponding first positioning hole 33 with respect to the circular turntable 3, which can enable the cut small parts 91 to be stressed at the center by the pressing plate 7, thereby ensuring that the cut small parts 91 can be stably fixed, so as to facilitate the continued oblique cutting of the annular part 9. The buckling part 72 includes a vertical plate 721 and a top plate 722. The bottom of the vertical plate 721 is connected to the top of the fixing part 71 and is located on the side away from the center of the circular turntable 3. One end of the top plate 722 is connected to the top of the vertical plate 721 and is arranged towards the side away from the center of the circular turntable 3. The buckling part 72 faces outwards, so that the annular part 9 is arranged on the side away from the center of the circular turntable 3, and an inverted buckle 723 is provided at the outer end of the buckling part 72 facing outwards, thereby enabling the radial dimension of the circular turntable 3 to be set smaller, which is beneficial to cost saving, hoisting use and rotational stability, etc.

[0109] In an alternative embodiment, as Figure 1 , Figure 7 and Figure 10 shown, an avoidance groove 23 is provided on the bottom plate 2 to prevent the cutting tool (such as the molybdenum wire of wire cutting, etc.) from constantly touching the bottom plate 2 during oblique cutting, which can reduce the consumption of the cutting tool and improve the service life of the cutting tool. The avoidance groove 23 is correspondingly arranged with the second positioning hole 22. The second positioning hole 22 is located on the virtual line extending outward from a certain diameter line of the first mounting hole 21. The virtual line extending outward from the diameter line where the second positioning hole 22 is located can pass through the avoidance groove 23, so that the two correspond to each other and are located on both sides of the first mounting hole 21.

[0110] A tooling for circumferentially equally dividing and obliquely cutting a ring part 9 provided in this embodiment can hoist the ring part 9 on the ground onto the rotary table 3 and fix it, and then hoist the ring part 9, the rotary table 3 and the bottom plate 2 as a whole onto the inclined support surface 131 of the tripod 1. Compared with clamping a ring part 9 with larger dimensions and heavier weight on an inclined surface, the clamping is more convenient and safe; and compared with the prior art that uses a motor rotating shaft to drive, the whole of the rotary table 3 and the ring part 9 is rotated on the inclined surface through the coupling 5, the crossed roller bearing 4 and the connecting plate 6, and the rotation process is more stable; and after the locking of the cylindrical positioning pin 8 and the fixing of the pressing plate 7, the whole rotation process of the rotary table 3 and the ring part 9 can be stable, can rotate in place and is stable during cutting, so that the circumferentially equally dividing and obliquely cutting of a ring part 9 with larger diameter dimensions and heavier weight can be realized. And considering the setting positions and directions of the first positioning hole 33, the second positioning hole 22, the hoisting hole 32 and the first connecting hole 712 (corresponding to the pressing plate 7), on the premise of realizing the circumferentially equally dividing and obliquely cutting of a ring part 9 with the same dimensions, the volume of the work can be reduced, which is beneficial to reducing the difficulty of operations such as machining, hoisting, rotation and oblique cutting, improving the stability and increasing the safety; and the setting position of the pressing plate 7 is obliquely arranged with respect to the first positioning hole 33, so that the pressing plate 7 can be fixed at the center of the small part 91 after oblique cutting, ensuring stable fixation, and further ensuring the stability and safety of the subsequent oblique cutting of the same annular part. And through the setting of the avoidance groove 23 on the bottom plate 2, the service life of wire cutting can be improved.

[0111] Embodiment 2

[0112] This embodiment provides a method for circumferentially equally dividing and obliquely cutting a ring part 9, which uses the tooling for circumferentially equally dividing and obliquely cutting a ring part 9 as described above, and includes the following steps:

[0113] S1: Connect the bottom plate 2 and the rotary table 3 into one body through the coupling 5, the connecting plate 6 and the crossed roller bearing 4, so that the rotary table 3 can rotate, and then fix the rotary table 3 by inserting the cylindrical positioning pin 8 into the first positioning hole 33 and the corresponding second positioning hole 22;

[0114] In step S1, the rotary table 3 is provided with a hoisting hole 32 corresponding to the first positioning hole 33, and the stable hoisting of the rotary table can be realized by using this circle of hoisting holes, so as to facilitate connecting the rotary table and the bottom plate into one body through the cooperation of the coupling, the connecting plate and the crossed roller bearing with the second mounting hole of the rotary table and the first mounting hole of the bottom plate.

[0115] In step S1, after the connection of the rotating part is completed, the rotary table 3 is fixed by inserting the cylindrical positioning pin 8 into the first positioning hole 33 and the corresponding second positioning hole 22 to prevent the rotary table 3 from rotating, so as to facilitate hoisting the ring part 9 onto the rotary table 3 in step S2, as Figure 8 shown;

[0116] S2: Hoist the ring-shaped part 9 onto the rotary table 3, and fix the rotary table 3 on the rotary table 3 through all the pressure plates 7;

[0117] Among them, after hoisting the ring-shaped part 9 onto the rotary table 3, the circular limit step on the rotary table 3 can be used to initially position and limit the ring-shaped part 9, which is convenient for fixing the rotary table 3 on the rotary table 3 through all the pressure plates 7, and can cooperate with the pressure plates 7 to make the combination of the ring-shaped part 9 and the rotary table 3 more stable;

[0118] After hoisting the ring-shaped part 9 onto the rotary table 3 in step S2 and fixing it through the pressure plate 7, the rotating part and the ring-shaped part 9 can form an integral body, which is beneficial to the overall hoisting onto the inclined support surface 131 of the tripod 1 in step S3 to form a stable support condition for oblique cutting;

[0119] S3: Hoist the coupling 5, the connecting plate 6, the crossed roller bearing 4, the rotary table 3, the base plate 2, the ring-shaped part 9 and the pressure plate 7 as a whole through the four-corner lifting rings 36 on the base plate to the inclined support surface 131 of the tripod 1 within the cutting range of the wire cutting device (such as on the workbench), and support the base plate 2 by the limiting device 17 on the lower side of the inclined support surface 131; Hoisting as a whole through the four-corner lifting rings on the base plate is convenient for adjusting the hoisting posture, which is beneficial to the overall hoisting onto the inclined support surface of the tripod in step S3 to form a stable support condition for oblique cutting;

[0120] S4: Cut and truncate the ring-shaped part 9 through the wire cutting device to form a cutting seam 92; As Figure 7 shown, the cutting line direction 93 of the wire cutting remains unchanged and is always vertical. Support the base plate 2 through the inclined support surface 131 of the tripod 1, tilt the ring-shaped part 9 by a certain angle, and then use vertical wire cutting to form an oblique cut;

[0121] S5: Take out the cylindrical positioning pin 8, rotate the rotary table 3 to make the ring-shaped part 9 rotate until the next first positioning hole 33 aligns with the second positioning hole 22, and insert the cylindrical positioning pin 8 into the currently aligned first positioning hole 33 and second positioning hole 22;

[0122] S6: Repeat steps S4 - S5 until the ring-shaped part 9 is evenly divided.

[0123] Steps S4 - S6 make the circumference of the ring-shaped part 9 evenly divided and obliquely cut by means of cyclic cutting, removing the cylindrical positioning pin 8, rotating to the next cutting angle and inserting the cylindrical positioning pin 8. And the small parts 91 formed by cutting are fixed at the center by the pressure plates 7, which can ensure the stability of the entire rotation process and oblique cutting process, thereby improving the service life of the tooling, improving the use stability, and improving the cutting quality.

[0124] In the method for circumferentially equally dividing and obliquely cutting the annular part 9 in this embodiment, compared with hoisting the part after the tooling is installed, the annular part 9 is first installed on the rotating part of the tooling, and then the whole is hoisted onto the inclined support surface 131 of the tripod 1 to form stable support conditions for oblique cutting. The hoisting difficulty is lower, and the installation accuracy is better, which is beneficial to improving the safety and stability of the operation and can improve the cutting quality.

[0125] After one of the annular parts 9 is circumferentially equally divided and obliquely cut into several small parts 91, as Figure 7 shown, the small parts 91 can be removed by removing the corresponding pressing plates 7 respectively, and then the bottom plate 2, the circular turntable 3, the crossed roller bearing 4, the coupling 5, the connecting plate 6 and the cylindrical positioning pin 8 are hoisted off the tripod 1 as a whole; or the bottom plate 2, the circular turntable 3, the crossed roller bearing 4, the coupling 5, the connecting plate 6, the cylindrical positioning pin 8, several pressing plates 7 and several small parts 91 can be hoisted off the tripod 1 as a whole, and then the small parts 91 are removed by removing the corresponding pressing plates 7 respectively. In this way, the disassembly of the small parts 91 is more convenient.

[0126] After the small parts 91 are removed from the circular turntable 3, the next annular part 9 can be installed on the circular turntable 3 to perform the circumferential equal division and oblique cutting of the next annular part 9.

[0127] In an optional implementation manner, as Figure 7 shown, the cutting groove is machined or corrected on the circular turntable 3 according to the marks left by wire cutting on the circular turntable 3. For example, before cutting the first annular part 9, a cutting groove has been cut on the circular turntable 3. When cutting the first annular part 9, it is found that the cutting groove is not suitable and should be corrected according to the marks left on the circular turntable 3, such as widening the cutting groove; if there is no cutting groove on the circular turntable 3 before cutting the first annular part 9, the cutting groove is machined on the circular turntable 3 according to the marks left by wire cutting on the circular turntable 3. This method can ensure that the position of the cutting groove on the circular turntable 3 is more in line with the actual path when obliquely cutting the annular part 9, and thus can better avoid the cutting tool constantly touching the circular turntable 3 during oblique cutting, reduce the consumption of the cutting tool, and improve the service life of the cutting tool. Specifically, after one of the annular parts 9 is circumferentially equally divided and obliquely cut into several small parts 91 and removed, the cutting groove is machined or corrected on the circular turntable 3 through the cutting marks on the circular turntable 3, so that the cutting tool does not touch the circular turntable 3 but moves in the cutting groove during the oblique cutting of the subsequent annular parts 9, improving the service life of the cutting tool.

[0128] Before using the tooling, it also includes the design of the tooling. According to the circumferential segmentation characteristics of the annular part 9, the circular turntable 3 and the pressing plate 7 are designed to fix the annular part 9. The circular turntable 3 is rotated equally by 15° through the connecting plate 6 and the crossed roller bearing 4, and then the crossed roller bearing 4 is connected to the square base plate 2 through the coupling to achieve the rotation function. Finally, the square base plate 2 is placed on the inclined support surface of the tripod 1 and placed on the wire cutting workbench to cut the annular part 9, verify the feasibility of the design, and make corresponding optimizations.

[0129] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool for evenly dividing and beveling the circumference of an annular part, characterized in that: include: A tripod, the tripod having an inclined support surface, and a limit device on the lower side of the inclined support surface; A bottom plate, the bottom plate can be placed on the inclined support surface and limited by a limiting device, a first mounting hole penetrating the bottom plate is provided in the middle of the bottom plate, and hangers are provided at the four corners of the bottom plate; A circular rotating disk, which is arranged above the bottom plate, and a second mounting hole penetrating the circular rotating disk is arranged at the center of the circular rotating disk; one of the bottom plate and the circular rotating disk is provided with a circle of first positioning holes, and the other is provided with a second positioning hole; A cross roller bearing, the cross roller bearing comprises an inner ring and an outer ring meshing with each other, and the cross roller bearing is arranged at the second mounting hole in the center of the circular turntable; A coupling, one end of which is fixed to the base plate, the coupling passes through the first mounting hole, the inner ring is sleeved on the coupling, and the other end of the coupling is fixed to the inner ring; A connecting disk, which is arranged above the circular rotating disk and fixedly connects the outer ring and the circular rotating disk; A plurality of pressing plates, all of which are arranged at intervals along the circumferential direction of the outer side of the second mounting hole, the lower ends of the pressing plates are connected to the circular rotating disk, and there is a gap between the upper ends of the pressing plates and the circular rotating disk for limiting the parts; A cylindrical locating pin, the cylindrical locating pin can be inserted into the first locating hole and the corresponding second locating hole.

2. A tool for evenly dividing and beveling the circumference of an annular part according to claim 1, characterized in that: The number of the pressing plates corresponds to the number of the first positioning holes, and there is an angle of 1°-5° between the pressing plates and the corresponding first positioning holes with respect to the circumference of the circular rotating disk.

3. A tool for evenly dividing and beveling the circumference of an annular part according to claim 2, characterized in that: A circle of lifting holes is arranged at intervals along the circumferential direction outside the second mounting hole of the circular turntable; the distance between the pressure plate and the center of the circular turntable is greater than the distance between the first positioning hole and the center of the circular turntable, and the distance between the lifting hole and the center of the circular turntable is less than the distance between the first positioning hole and the center of the circular turntable.

4. A tool for evenly dividing and beveling the circumference of an annular part according to claim 3, characterized in that: The first positioning hole is arranged on the circular rotating disk, and the second positioning hole is arranged on the bottom plate.

5. A tool for evenly dividing and beveling the circumference of an annular part according to claim 4, characterized in that: The first positioning holes and the lifting holes on the circular turntable correspond one to one in the circumferential direction of the circular turntable.

6. A tool for evenly dividing and beveling the circumference of an annular part according to any one of claims 1 to 5, characterized in that: The lower end of the pressing plate is a fixing part, and the upper end is a buckling part; The fixing portion has a first connecting hole that runs vertically through; a second connecting hole corresponding to the first connecting hole is arranged on the rotating disk, the second connecting hole and the first connecting hole are connected by a long screw, and there is a 1°-5° deflection angle between the second connecting hole and the corresponding first positioning hole with respect to the circumference of the rotating disk; The buckling part includes a vertical plate and a top plate. The bottom of the vertical plate is connected to the top of the fixing part and is located on a side away from the center of the circular rotating disk. One end of the top plate is connected to the top of the vertical plate and is arranged toward a side away from the center of the circular rotating disk.

7. A tool for evenly dividing and beveling the circumference of an annular part according to any one of claims 1 to 5, characterized in that: The bottom plate is square in shape; and / or, The connecting plate is fixed to the outer ring and the rotating plate by screws respectively, and the coupling is fixed to the inner ring and the bottom plate by screws respectively; and / or, The tripod includes right-angled triangular brackets located on both sides, each right-angled triangular bracket includes a bottom beam, a vertical beam and an oblique beam, the bottom and top of the vertical beams of the two right-angled triangular brackets are respectively connected by a first cross beam, the right angle inner sides of the two right-angled triangular brackets are connected by a second cross beam, the top of one end of the bottom beam of the two right-angled triangular brackets away from the right angle is connected by a third cross beam, the top surfaces of the oblique beams of the two right-angled triangular brackets form an inclined support surface, and the bottom ends of the oblique beams of the two right-angled triangular brackets are respectively provided with a limiting device, and the limiting device is a limiting plate; And / or, an operation hole is provided in the center of the connecting disk.

8. A tool for evenly dividing and beveling the circumference of an annular part according to any one of claims 1 to 5, characterized in that: An avoidance groove is provided on the bottom plate.

9. A method for evenly dividing the circumference of an annular part and beveling it, characterized in that: The tooling for evenly dividing and beveling the circumference of an annular part as claimed in any one of claims 1 to 8 comprises the following steps: S1: The base plate and the circular rotating disk are connected as one through a coupling, a connecting disk and a cross roller bearing so that the circular rotating disk can rotate, and then the cylindrical positioning pin is inserted into the first positioning hole and the corresponding second positioning hole to fix the circular rotating disk; S2: hoist the annular parts onto the round turntable and fix the round turntable onto the round turntable through all the pressing plates; S3: hoist the coupling, connecting plate, cross roller bearing, circular rotating plate, bottom plate, annular parts and pressing plate as a whole to the inclined support surface of the tripod within the cutting range of the wire cutting device through the four-corner hoist on the bottom plate, and support the bottom plate with the limit device on the lower side of the inclined support surface; S4: Cutting and truncating the annular parts by a wire cutting device; S5: Take out the cylindrical positioning pin, rotate the rotating disk to rotate the annular part until the next first positioning hole is aligned with the second positioning hole, and insert the cylindrical positioning pin into the currently aligned first positioning hole and the second positioning hole; S6: Repeat steps S4-S5 until the annular part is evenly divided.

10. A method for equally dividing the circumference of an annular part by beveling according to claim 9, characterized in that: The cutting groove on the circular rotating disk is processed or corrected according to the cutting marks left by the wire cutting on the circular rotating disk.

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