Heat treatment shaping process for spherical bearing ring

Abstract

The invention relates to the technical field of heat treatment of bearing rings applied to wind power type main shafts, in particular to a heat treatment shaping process for spherical bearing rings. The outer diameter of the spherical bearing ring close to the A end face is measured, and the diameter variation SA is obtained; measuring the outer diameter of the spherical bearing ring close to the end face B to obtain a diameter variation SB; if SA and SB are both larger than the standard deformation quantity threshold value, the position for installing the top type tool is determined, the top type tool starts to be installed, and the outer diameter deformation low point is changed into the outer diameter deformation high point through tool stress; and after shaping is finished, heating and heat preservation are conducted through a tempering furnace. According to the difference value between the diameter variation of the end faces of the two sides of the large / oversize spherical bearing ring, a reasonable top form formula is determined, the shaping position and the top form degree are strictly controlled, and it is guaranteed that the diameter variation after shaping is within the allowance range through the large inversion amount.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment of bearing rings applied to wind power type main shafts, and in particular to a heat treatment shaping process for spherical bearing rings. Background Art

[0002] Large / extra-large spherical bearing rings are mainly used as bearing parts for wind power type main shafts. However, with the increase in wind power megawatts, the diameter of spherical bearing rings used for wind power type main shafts has also increased, from the original outer diameter of 700mm to an outer diameter of 1200mm-1700mm; among them, the outer diameter of 1200mm-1500mm is a large spherical bearing ring, and the outer diameter of 1500mm-1700mm is an extra-large spherical bearing ring.

[0003] However, large / extra-large spherical bearing rings not only have larger outer diameters, but also have larger amplitudes. When heat treating such large / extra-large spherical bearing rings, heat treatment deformation is inevitable, especially for rings with larger amplitudes, where the high and low points of deformation on both sides will be in different positions. Summary of the invention

[0004] In view of the defects of the prior art, the present invention provides a heat treatment shaping process for spherical bearing rings, which determines a reasonable top-forming formula according to the difference between the diameter changes of the end faces on both sides of the large / extra-large spherical bearing rings, strictly controls the shaping position and the degree of top forming, and uses a large reverse shaping amount to ensure that the diameter change after shaping is within the tolerance range.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is a heat treatment shaping process for a spherical bearing ring, wherein the outer diameter of the spherical bearing ring is 1200mm-1700mm, the width is greater than 350mm, and the spherical bearing ring has an A end face and a B end face, and the steps include: S100, Measure the outer diameter of the spherical bearing ring near the A end face, and mark the high point of the A end face outer diameter deformation and the low point of the A end face outer diameter deformation to obtain the diameter change S A ; Measure the outer diameter of the spherical bearing ring near the B end face, and mark the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face to obtain the diameter change S B ; Start S200; S200, If S A , S B are greater than the standard deformation threshold, and S A , S BThe difference between them is greater than or equal to 1.0mm; the angle between the high point of the outer diameter deformation of the A end face and the low point of the outer diameter deformation of the A end face is less than 90°, the angle between the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face is less than 90°, the positions of the high points of the outer diameter deformation of the two end faces do not correspond, and the positions of the low points of the outer diameter deformation do not correspond; Then S300 starts; If S A , S B are greater than the standard deformation threshold, and S A , S B The difference between them is less than 1.0mm; the angle between the high point of outer diameter deformation of end face A and the low point of outer diameter deformation of end face A is less than 90°, the angle between the high point of outer diameter deformation of end face B and the low point of outer diameter deformation of end face B is less than 90°, the positions of the high points of outer diameter deformation of the two end faces do not correspond, and the positions of the low points of outer diameter deformation do not correspond; Then S400 starts; S300, comparison of diameter change S A and diameter variation S B ; For the end face with a larger diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees away from the deformation high point, and the top-type tooling is started. The outer diameter deformation low point is turned into the outer diameter deformation high point through the force of the tooling. For the end face with the smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees away from the deformation high point, and the top-type tooling is started. The outer diameter deformation low point is turned into the outer diameter deformation high point by the tooling force. After shaping, it is heated and kept warm in a tempering furnace; S400, comparison of diameter change S A and diameter variation S B ; For the end face with a larger diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in a direction perpendicular to the deformation low point to the side away from the deformation high point, and the top-type tooling is started. The outer diameter deformation low point is turned into the outer diameter deformation high point by the force of the tooling. For the end face with the smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in the direction perpendicular to the deformation low point to the side away from the deformation high point, and the top-type tooling is started. The original outer diameter deformation low point is turned into the outer diameter deformation high point by the force of the tooling. After shaping, it is heated and kept warm in a tempering furnace.

[0006] Furthermore, measuring the diameter variation of the outer diameter of the spherical bearing ring includes: using a measuring tube ruler to rotate along the circumferential direction of the spherical bearing ring, determining the low point and the high point of the ring by the number of rotations of the pointer of the dial indicator, and determining the diameter variation.

[0007] Furthermore, the measuring ruler includes a ruler body, an abutment assembly slidably fixed to the ruler body, and a measuring table assembly slidably fixed to the ruler body.

[0008] Furthermore, in step S300, the tempering furnace is heated at a temperature of 200° C.-250° C., and the insulation time is 10 hours.

[0009] Furthermore, in step S400, the temperature of the tempering furnace is 200°C-250°C, and the insulation time is 10 hours. Furthermore, in step S300, the diameter change Y after top forming satisfies: Y=(1.2~1.8)X+(0.1mm~0.2mm) The top forming is ended when X is the diameter change before the top forming.

[0010] Furthermore, in step S400, when the diameter variation Y after molding satisfies: Y=(1.0-1.5)X+(0.1 mm-0.2 mm), molding is terminated, wherein X is the diameter variation before molding.

[0011] The beneficial effects of the present invention are as follows: according to the difference between the diameter changes of the end faces on both sides of the large / extra-large spherical bearing ring, a reasonable top-forming formula is determined, the shaping position and the top-forming degree are strictly controlled, and a large anti-shaping amount is used to ensure that the diameter change after shaping is within the tolerance range. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of measuring the diameter variation of the outer diameter in step S100 of the present invention; Figure 2 It is a schematic diagram of the high point of the outer diameter deformation of the A end surface and the low point of the outer diameter deformation of the A end surface determined on the A end surface in the present invention; Figure 3 It is a schematic diagram of the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face determined on the B end face in the present invention; Figure 4 This is a table of allowable variation of the outer diameter of the ferrule in the invention; Figure 5 It is a schematic diagram of the structure of the spherical bearing ring after the top-type tooling is installed; Figure 6 Schematic diagram of integer parameters of Example 1 and Example 2; In the figure: 1. A end face, 1a, A end face outer diameter deformation high point, 1b, A end face outer diameter deformation low point, 2. B end face, 2a. B end face outer diameter deformation high point, 2b. B end face outer diameter deformation low point, 3. Measuring pipe ruler, 3.1. Pipe ruler body, 3.2. Abutment assembly, 3.3. Measuring table assembly, 4. Spherical bearing rings, 5. Top tooling, L. The position of the top tooling. DETAILED DESCRIPTION

[0013] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0014] A heat treatment shaping process for a spherical bearing ring is mainly used for quenching and tempering martensite or bainite of a bearing steel ring. The outer diameter of the spherical bearing ring is 1200mm-1700mm, the width is greater than 200mm, and the spherical bearing ring has an A end face and a B end face. The steps include: See also Figure 1 , Figure 2 and Figure 3 Step S100: measure the outer diameter of the spherical bearing ring near the A end face 1, and mark the high point 1a and the low point 1b of the outer diameter deformation of the A end face, and obtain the diameter variation S A ; Measure the outer diameter of the spherical bearing ring near the B end face 2, and mark the high point 2a and the low point 2b of the outer diameter deformation of the B end face to obtain the diameter change S B ; In one embodiment, see Figure 1 In step S100, measuring the diameter variation of the outer diameter of the spherical bearing ring 4 includes: using the measuring tube ruler 3 to rotate along the circumferential direction of the spherical bearing ring 4, determining the low point and the high point of the ring by the number of revolutions of the pointer of the dial indicator, and determining the diameter variation. Using the measuring tube ruler 3 to detect the outer diameters close to the two end faces respectively.

[0015] For specific measurements, see Figure 1 The measuring ruler 3 includes a ruler body 3.1, an abutment assembly 3.2 slidably fixed to the ruler body 3.1, and a measuring table assembly 3.3 slidably fixed to the ruler body 3.1.

[0016] Step S200, see Figure 4, shows the table of allowable variation of the outer diameter of the ferrule in this embodiment, and reads the standard deformation threshold, that is, the diameter variation (maximum). Among them, the unit of the nominal outer diameter is mm. If the diameter variation S A , diameter variation S B are greater than the standard deformation threshold, and the diameter change S A , diameter variation S B The difference between is greater than or equal to 1.0 mm; see Figure 2 and Figure 3 , the angle between the high point 1a of the outer diameter deformation of the A end face and the low point 1b of the outer diameter deformation of the A end face is less than 90°, the angle between the high point 2a of the outer diameter deformation of the B end face and the low point 2b of the outer diameter deformation of the B end face is less than 90°, and the positions of the high points and low points of the outer diameter deformation corresponding to the two end faces are different, then start step S300.

[0017] Among them, the positions of the high points and low points of the outer diameter deformation corresponding to the two end faces are different, which means that the high point 1a of the outer diameter deformation of the A end face does not correspond to the high point 2a of the outer diameter deformation of the B end face, and the low point 1b of the outer diameter deformation of the A end face does not correspond to the low point 2b of the outer diameter deformation of the B end face. Whether it corresponds is to determine whether the projection of the high point 1a of the outer diameter deformation of the A end face on the plane where the B end face is located along the axial direction coincides with the high point 2a of the outer diameter deformation of the B end face, and similarly, to determine whether the projection of the low point 1b of the outer diameter deformation of the A end face on the plane where the B end face is located along the axial direction coincides with the low point 2b of the outer diameter deformation of the B end face, if they coincide, then they correspond, otherwise, then they do not correspond.

[0018] It should be noted that the standard deformation threshold is determined according to the national standard JB / T1255-2014 version, or is specified based on the national standard. In this embodiment, the standard deformation threshold can be Figure 4 Read out the table in .

[0019] If the diameter change S A , diameter variation S B are greater than the standard deformation threshold, and the diameter change S A , diameter variation S B The difference between them is less than 1.0 mm; the angle between the high point of the outer diameter deformation of the A end face and the low point of the outer diameter deformation of the A end face is less than 90°, the angle between the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face is less than 90°, and the positions of the high point of the outer diameter deformation and the low point of the outer diameter deformation corresponding to the two end faces are different, then start step S400; See also Figure 2 , Figure 3 and Figure 5 Step S300: compare the diameter variation S A and diameter variation S B; For the end face with a larger diameter variation, the position L of the top-type tooling is determined by shifting 10 to 20 degrees from the low point of the outer diameter deformation to the side away from the high point of the deformation, and the top-type tooling 5 is started. The force applied to the top-type tooling 5 makes the low point of the outer diameter deformation become the high point of the outer diameter deformation; further, the top-type formula in step S300 is: The deformation after top forming is Y=(1.2~1.8)X+(0.1mm ~0.2mm), where X is the original deformation.

[0020] For the end face with the smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in the direction perpendicular to the deformation low point to the side away from the deformation high point, and the ejection tooling is started. When the tooling is subjected to force, the original outer diameter deformation low point becomes the outer diameter deformation high point. Further, the ejection formula in step S300 is: The deformation after top forming is Y=(1.2~1.8)X+(0.1mm ~0.2mm), where X is the original deformation.

[0021] After the shaping is completed, the tempering furnace is used for heating and heat preservation. Further, in step S300, the tempering furnace is heated at a temperature of 200-250° C. and the heat preservation time is 10 hours.

[0022] See also Figure 2 , Figure 3 and Figure 5 Step S400: compare the diameter variation S A and diameter variation S B ; For the end face with a larger diameter variation, the position L of the top-type tooling is determined by shifting 10 to 20 degrees from the low point of the outer diameter deformation to the side away from the high point of the deformation, and the top-type tooling 5 is started. The force applied to the top-type tooling 5 makes the low point of the outer diameter deformation become the high point of the outer diameter deformation; further, the top-type formula in step S400 is: The deformation after top forming is Y=(1.0~1.5)X+(0.1mm ~0.2mm), where X is the original deformation.

[0023] For the end face with a smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in a direction perpendicular to the deformation low point to the side away from the deformation high point, and the ejection tooling is started. When the tooling is subjected to force, the original outer diameter deformation low point becomes the outer diameter deformation high point; further, the ejection formula in step S400 is: The deformation after top forming is Y=(1.0~1.5)X+(0.1mm ~0.2mm), where X is the original deformation.

[0024] See also Figure 5Specifically, the top-forming tooling is a screw top support. When performing the top-forming operation, the top-forming tooling 5 is installed to the determined position L of the top-forming tooling, that is, the axis of the top-forming tooling 5 coincides with the position L of the top-forming tooling, and the nut on the screw top support is adjusted to perform top-forming. After the top-forming is completed, the screw top support is not removed, and the deformation amount Y after top-forming is measured again using the measuring tube ruler 3. If the deformation amount Y after top-forming does not satisfy the top-forming formula, the nut is continued to be adjusted for top-forming until the deformation amount Y satisfies the top-forming formula. During the specific operation, the range of the diameter change amount Y after top-forming can be calculated according to the top-forming formula. When the diameter change amount Y measured after top-forming falls within the range, it is considered that the low point of the outer diameter deformation is changed to the high point of the outer diameter deformation through the tooling force.

[0025] After the shaping is completed, the tempering furnace is used for heating and heat preservation. Further, in step S400, the tempering furnace is heated at a temperature of 200° C.-250° C. and the heat preservation time is 10 hours.

[0026] See also Figure 6 In Example 1, a heat treatment shaping process for a spherical bearing ring is mainly used for quenching and tempering martensite or bainite of a bearing steel ring. The outer diameter of the spherical bearing ring is 1580 mm, the width is greater than 200 mm, the standard deformation threshold is determined to be 1.84 mm, and the spherical bearing ring has an A end face and a B end face, and the steps include: Step S100, measuring the outer diameter of the spherical bearing ring close to the A end surface 1, and marking the high point 1a of the outer diameter deformation of the A end surface and the low point 1b of the outer diameter deformation of the A end surface, and obtaining a diameter variation of 3.7 mm; Measure the outer diameter of the spherical bearing ring near the B end face 2, and mark the high point 2a and the low point 2b of the outer diameter deformation of the B end face, and get the diameter change of 2.2mm; the diameter change of the A end face 3.7mm and the diameter change of the B end face 2.2mm are both greater than the standard deformation threshold of 1.84mm, and the difference is greater than or equal to 1.0mm; see Figure 2 and Figure 3 , the angle between the high point 1a of the outer diameter deformation of the A end face and the low point 1b of the outer diameter deformation of the A end face is less than 90°, the angle between the high point 2a of the outer diameter deformation of the B end face and the low point 2b of the outer diameter deformation of the B end face is less than 90°, and the positions of the high points and low points of the outer diameter deformation corresponding to the two end faces are different, then start step S300.

[0027] Step S300: for the end face A with a large diameter variation, the position L of the ejection tooling is determined by shifting 20 degrees from the low point of the outer diameter deformation to the side away from the high point of the deformation, and the ejection tooling 5 is started. The ejection tooling 5 is subjected to force to make the low point of the outer diameter deformation become the high point of the outer diameter deformation; further, the ejection formula in step S300 is: The deformation after top forming is Y=5.68mm; Y=top type magnification 1.51*3.7mm +0.1mm.

[0028] For the B end face with a smaller diameter variation, the outer diameter deformation low point is offset 15 degrees in a direction perpendicular to the deformation low point to the side away from the deformation high point, and the ejection tooling is started. When the tooling is subjected to force, the original outer diameter deformation low point becomes the outer diameter deformation high point. Further, the ejection formula in step S300 is: The deformation after top forming is Y=3.4mm; Y=top type magnification 1.50*2.2mm +0.1mm.

[0029] After the shaping is completed, the tempering furnace is used for heating and heat preservation. Further, in step S300, the tempering furnace is heated at a temperature of 200° C. and the heat preservation time is 10 hours.

[0030] The deformation of end face A after tempering is 1.1mm, and the deformation of end face B after tempering is 0.8mm, both of which are smaller than the determined standard deformation threshold of 1.84mm. The tempered dimensions after shaping meet the requirements.

[0031] Continue to see Figure 6 In Example 2, a heat treatment shaping process for a spherical bearing ring is mainly used for quenching and tempering martensite or bainite of a bearing steel ring. The outer diameter of the spherical bearing ring is 1220 mm, the width is greater than 200 mm, the standard deformation threshold is determined to be 1.4 mm, and the spherical bearing ring has an A end face and a B end face, and the steps include: Step S100, measuring the outer diameter of the spherical bearing ring close to the A end surface 1, and marking the high point 1a of the outer diameter deformation of the A end surface and the low point 1b of the outer diameter deformation of the A end surface, and obtaining a diameter variation of 3.0 mm; Measure the outer diameter of the spherical bearing ring near the B end face 2, and mark the high point 2a and the low point 2b of the outer diameter deformation of the B end face, and obtain the diameter variation of 2.5mm; if the linear variation of the two end faces is greater than the standard deformation threshold, and the difference between the two is less than 1.0mm; the angle between the high point of the outer diameter deformation of the A end face and the low point of the outer diameter deformation of the A end face is less than 90°, the angle between the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face is less than 90°, and the positions of the high point and the low point of the outer diameter deformation corresponding to the two end faces are different, then start step S400; Step S400, for the side of the A end face with a larger diameter variation, the position L of the top forming tool is determined by shifting 10 to 20 degrees from the low point of the outer diameter deformation to the side away from the high point of the deformation, and the top forming tool 5 is started, and the force applied by the top forming tool 5 causes the low point of the outer diameter deformation to become the high point of the outer diameter deformation; further, the deformation amount after top forming in step S400 is Y=3.7mm; Y=top type magnification 1.2*3.0mm +0.1mm.

[0032] For the side of the B end face with a smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in a direction perpendicular to the deformation low point to the side away from the deformation high point, and the top forming tooling is started. When the tooling is subjected to force, the original outer diameter deformation low point becomes the outer diameter deformation high point; further, the deformation amount after top forming in the top forming formula in step S400 is Y=3.2mm; Y=top type magnification 1.24*2.5mm +0.1mm.

[0033] The deformation of end face A after tempering is 0.9mm, and the deformation of end face B after tempering is 0.7mm, both of which are less than the determined standard deformation threshold of 1.4mm. The tempered dimensions after shaping meet the requirements.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

Claims

1. A heat treatment shaping process for a spherical bearing ring, wherein the outer diameter of the spherical bearing ring is 1200mm-1700mm, the width is greater than 350mm, and the spherical bearing ring has an A end face and a B end face, characterized in that: Step include: S100、 Measure the outer diameter of the spherical bearing ring near the A end face, and mark the high point of the A end face outer diameter deformation and the low point of the A end face outer diameter deformation to obtain the diameter change S A ; Measure the outer diameter of the spherical bearing ring near the B end face, and mark the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face to obtain the diameter change S B ; Start S200; S200、 If S A , S B are greater than the standard deformation threshold, and S A , S B The difference between them is greater than or equal to 1.0mm; the angle between the high point of the outer diameter deformation of the A end face and the low point of the outer diameter deformation of the A end face is less than 90°, the angle between the high point of the outer diameter deformation of the B end face and the low point of the outer diameter deformation of the B end face is less than 90°, the positions of the high points of the outer diameter deformation of the two end faces do not correspond, and the positions of the low points of the outer diameter deformation do not correspond; Then S300 starts; If S A , S B are greater than the standard deformation threshold, and S A , S B The difference between them is less than 1.0mm; the angle between the high point of outer diameter deformation of end face A and the low point of outer diameter deformation of end face A is less than 90°, the angle between the high point of outer diameter deformation of end face B and the low point of outer diameter deformation of end face B is less than 90°, the positions of the high points of outer diameter deformation of the two end faces do not correspond, and the positions of the low points of outer diameter deformation do not correspond; Then S400 starts; S300, comparison of diameter change S A and diameter variation S B ; For the end face with a larger diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees away from the deformation high point, and the top-type tooling is started. The outer diameter deformation low point is turned into the outer diameter deformation high point by the force of the tooling. For the end face with the smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees away from the deformation high point, and the top-type tooling is started. The outer diameter deformation low point is turned into the outer diameter deformation high point by the tooling force. After shaping, it is heated and kept warm in a tempering furnace; S400, comparison of diameter change S A and diameter variation S B ; For the end face with a larger diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in a direction perpendicular to the deformation low point to the side away from the deformation high point, and the top-type tooling is started. The outer diameter deformation low point is turned into the outer diameter deformation high point by the force of the tooling. For the end face with the smaller diameter variation, the outer diameter deformation low point is offset 10 to 20 degrees in the direction perpendicular to the deformation low point to the side away from the deformation high point, and the top-type tooling is started. The original outer diameter deformation low point is turned into the outer diameter deformation high point by the tooling force. After shaping, it is heated and kept warm in a tempering furnace.

2. A spherical bearing ring heat treatment shaping process according to claim 1, characterized in that: Measuring the diameter variation of the outer diameter of the spherical bearing ring includes: using a measuring tube ruler to rotate along the circumferential direction of the spherical bearing ring, determining the low point and the high point of the ring through the number of rotations of the pointer of the dial indicator, and determining the diameter variation.

3. A spherical bearing ring heat treatment shaping process according to claim 2, characterized in that: The measuring ruler comprises a ruler body, an abutment assembly slidably fixed to the ruler body, and a measuring table assembly slidably fixed to the ruler body.

4. A spherical bearing ring heat treatment shaping process according to claims 1-3, characterized in that: In step S300, the tempering furnace is heated at a temperature of 200° C.-250° C., and the insulation time is 10 hours.

5. A spherical bearing ring heat treatment shaping process according to claims 1-3, characterized in that: In step S400, the tempering furnace is heated at a temperature of 200° C.-250° C., and the insulation time is 10 hours.

6. A spherical bearing ring heat treatment shaping process according to claims 1-3, characterized in that: In step S300, when the diameter change Y after top forming satisfies: Y=(1.2~1.8)X+(0.1mm~0.2mm) The top forming is ended when X is the diameter change before the top forming.

7. A spherical bearing ring heat treatment shaping process according to claims 1-3, characterized in that: In step S400, when the diameter change Y after top forming satisfies: Y=(1.0~1.5)X+(0.1 mm~0.2mm) The top forming is ended when X is the diameter change before the top forming.

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