Heat treatment tool for shaping roundness of bearing ring
By designing heat treatment tooling for sleeves, threaded rods and wedge blocks, the problem of elliptical deformation of the inner hole after bearing ring quenching is solved, and the circularity of the bearing ring is quickly corrected and fixed, simplified the operation process and reduced costs.
Patent Information
- Application Number
- CN202422555613.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-22
AI Technical Summary
After quenching, the inner bore of the existing bearing ring is deformed into an elliptical shape, which cannot be directly supported, and the plastic shaping machine is cumbersome to operate, and the high cost of automation equipment is high.
A heat treatment tooling including sleeves, threaded rods, spherical parts and wedge blocks is designed. The precise shaping of the inner holes of the bearing ring is achieved through the profiling structure and the limiting structure, and the fixing is made by the threaded rods and nuts to ensure that the wedge blocks are closely matched with the bearing ring.
It realizes rapid correction and fixation of bearing ring roundness, simple structure, easy to operate, strong applicability, low cost and not easy to deform, and good plastic shaping effect.
Smart Images
Figure CN223250266U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat treatment tool, in particular to a heat treatment tool for roundness shaping of a bearing ring. Background Art
[0002] The outer diameter of existing bearing rings ranges from φ350mm to φ550mm, and the thickness ranges from 30mm to 50mm. After quenching, the inner hole of the existing bearing rings is greatly deformed and becomes elliptical, which cannot meet the use requirements. In addition, the inner hole of the existing bearing rings is not a flat circle and cannot be directly supported. Therefore, reshaping the existing bearing rings requires duplicate reshaping machines or reshaping tooling. These machines and tooling also need to be operated strictly in accordance with the requirements, and the steps are cumbersome. Reshaping machines with a high degree of automation have the problem of high procurement costs. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, a heat treatment tool is provided for roundness shaping of a bearing ring.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a heat treatment tool for roundness shaping of a bearing ring, comprising a sleeve, threaded rods are rotatably provided at both ends of the sleeve, spherical parts are provided at the ends of the threaded rods, the spherical parts are provided in a cavity inside a wedge block, and the outer side of the wedge block is a contoured structure that is fitted with the inner ring of the bearing ring.
[0005] Furthermore, a nut for locking the threaded rod is sleeved on the threaded rod, and the nut is threadably matched with the threaded rod.
[0006] Furthermore, the wedge block has upper and lower limit structures on the upper and lower sides to limit the bearing ring from shaking up and down, and a gap is set between the lower side of the upper limit structure and the upper side of the bearing ring, and a gap is set between the upper side of the lower limit structure and the lower side of the bearing ring.
[0007] Furthermore, the chamber is in the shape of a hemispherical surface that protrudes outward for a distance and is narrow on the outside and wide on the inside.
[0008] Furthermore, the center position of the chamber protruding outward for a distance has a groove that continues to protrude outward for a distance.
[0009] The beneficial effects of the utility model are as follows: the utility model is a heat treatment tool for roundness shaping of a bearing ring, which has the characteristics of simple structure, easy operation, low price and high efficiency and speed. Specifically:
[0010] 1. The tooling can be adjusted according to the size of the existing bearing ring, and has strong applicability. The bearing ring needs to be tempered after quenching. Before tempering, the tooling is used to correct the roundness of the bearing ring to within the qualified range and fix it. The fixed tempering is used to fix the current size and complete the correction. The shaping tooling and the product are subjected to force at the same time, will not deform, and can be reused.
[0011] 2. The contoured wedge block is used to cooperate with the tooling support. The contoured wedge block fits with the inner hole (ring) of the bearing ring and forms a whole with the tooling without sliding. It has good effect, easy operation, stable cooperation and good consistency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0013] Figure 1 This is a schematic diagram of the structure after the tooling and bearing ring of the utility model are assembled Figure 1 .
[0014] Figure 2 This is a schematic diagram of the structure after the tooling and bearing ring of the utility model are assembled Figure 2 .
[0015] Figure 3 It is a structural schematic diagram of the wedge block of the utility model.
[0016] In the figure: 1. sleeve, 2. threaded rod, 3. spherical member, 4. wedge block, 5. bearing ring, 6. nut, 41. chamber, 42. groove, 43. contour structure, 44. upper limit structure, 45. lower limit structure. DETAILED DESCRIPTION
[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] Figures 1 to 3The one shown is a heat treatment tool for roundness shaping of a bearing ring, comprising a sleeve 1 with openings at both ends, an internal thread inside the sleeve 1, threaded rods 2 being rotatably installed at both ends of the sleeve 1, and the threaded rod 2 being rotated so that the threaded rod 2 extends or retracts from the end of the sleeve 1, and a spherical part 3 is placed at the end on the other side of the threaded rod 2, which is mostly a steel ball or a steel ball. The spherical part 3 is resting in a chamber 41 on the inner side of the wedge block 4, and in order to leave a certain rotation space for the spherical part 3, the chamber 41 is processed into a hemispherical or semi-spherical shape that protrudes outward for a distance and is narrow on the outside and wide on the inside. In order to better limit and position the position of the spherical part 3 in the chamber 41, the center position of the chamber 41 that protrudes outward for a distance also has a groove 42 that continues to protrude outward for a distance.
[0019] The outer side of the wedge block 4 is a profiling structure 43 that is fitted with the inner ring of the bearing ring 5. In the figure, the inner ring of the bearing ring 5 is a narrow-top, wide-bottom inclined surface, and the profiling structure 43 is a wide-top, narrow-bottom inclined surface. In order to further improve the shaping accuracy and to prevent the wedge block 4 from falling out of the inner ring of the bearing ring 5 during the shaping process, the upper and lower sides of the wedge block 4, that is, the upper and lower ends of the profiling structure 43, have upper and lower limit structures 44 and 45 that limit the bearing ring 5 from shaking up and down. A gap is set between the lower side of the upper limit structure 44 and the upper side of the bearing ring 4, and a gap is set between the upper side of the lower limit structure 45 and the lower side of the bearing ring 4. The gaps between the upper and lower limit structures 44, 45 and the bearing ring 4 are set to enable the wedge block 4 to rotate normally, thereby achieving the purpose of shaping the roundness of the bearing ring 5.
[0020] In order to prevent the threaded rod 2 from rotating after the position is adjusted, a nut 6 for locking the threaded rod is sleeved on the threaded rod 2, and the nut 6 is threadably matched with the threaded rod 2.
[0021] When used specifically
[0022] S1: Measure the maximum and minimum roundness of the bearing ring 5 and mark them;
[0023] S2: Place the wedge block 4 into the inner hole (inner ring) of the bearing ring 5 and lock it;
[0024] S3: Screw the threaded rod 2 into the sleeve 1, and screw the nut 6 onto the threaded rod 2 to form an inner support.
[0025] S4: Place the spherical member 3 into the chamber 41, place the inner support member assembled in S3 into the inner hole (inner ring) of the bearing ring 5, and rotate the threaded rod 2 to support the wedge block 4;
[0026] S5: Rotate the bearing ring 5 so that the minimum value of the roundness is aligned with the position of the wedge block 4;
[0027] S6: Rotate the threaded rod 2 so that the thread 2 is extended until the minimum value and the maximum value of the inner hole (inner ring) of the bearing ring 5 are consistent. At this time, the spherical member 3 is at the notch position of the groove 42;
[0028] S7: Locking nut 6 to prevent threaded rod 2 from rotating;
[0029] S8: Finally, the assembly is completed, and the bearing ring 5 and the tooling are tempered together to complete the shaping.
[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A heat treatment tool for roundness shaping of a bearing ring, characterized by: It includes a sleeve, threaded rods are rotatably set at both ends of the sleeve, spherical parts are set at the ends of the threaded rods, the spherical parts are set in the cavity inside the wedge block, and the outer side of the wedge block is a contoured structure that fits the inner ring of the bearing ring.
2. The heat treatment tool for roundness shaping of a bearing ring according to claim 1, characterized in that: A nut for locking the threaded rod is sleeved on the threaded rod, and the nut is threadably matched with the threaded rod.
3. The heat treatment tool for roundness shaping of a bearing ring according to claim 1, characterized in that: The wedge block has upper and lower limit structures on the upper and lower sides for limiting the bearing ring from shaking up and down. A gap is set between the lower side of the upper limit structure and the upper side of the bearing ring, and a gap is set between the upper side of the lower limit structure and the lower side of the bearing ring.
4. The heat treatment tool for roundness shaping of a bearing ring according to claim 1, characterized in that: The chamber is in the shape of a hemispherical surface that protrudes outward for a distance and is narrow on the outside and wide on the inside.
5. The heat treatment tool for roundness shaping of a bearing ring according to claim 4, characterized in that: The center position of the cavity protrudes outward for a distance and has a groove which continues to protrude outward for a distance.