Rotary clamping tool for workpiece induction heating

Abstract

The utility model relates to the field of clamping tools, solves the problem that when an existing rotary clamping tool is directly applied to induction heating, a containing table and U-shaped iron are large in size, and provides a rotary clamping tool for workpiece induction heating. The rotary circular truncated cone is provided with the opening; the top wall of the rotary circular truncated cone is connected with one ends of a plurality of mounting plates, the other ends of the mounting plates extend out of the edge of the rotary circular truncated cone, and moving grooves are formed in the mounting plates. The clamping piece is connected with the moving groove, the clamping piece can move along the moving groove, and the clamping piece is used for clamping a bearing outer ring; the clamping piece is provided with a distance measuring sensor, and the signal transmitting direction of the distance measuring sensor faces the top wall of the rotary placing table and is perpendicular to the plane where the top wall is located. According to the utility model, the mounting plate is arranged, and one part of the mounting plate extends out of the edge of the rotary circular truncated cone, so that the length of the mounting plate can meet the requirement that the clamping piece has a wider movement range, and the size of the rotary circular truncated cone is reduced.

Description

Technical Field

[0001] The utility model relates to the field of clamping tools, and more specifically, to a rotary clamping tool for induction heating of workpieces. Background Technique

[0002] After the bearing is heated to a certain temperature by an induction heating device, a cooling process is carried out. For example, the bearing is spray-cooled with quenching liquid, and then through a tempering process, it can increase the strength of the bearing by holding for 2 hours at a tempering temperature of 170°C - 250°C. During the heating process of the bearing, it needs to be heated to an appropriate temperature and held for a period of time to make part or all of the bearing austenitized. Currently, in order to ensure that the bearing is fully austenitized or an austenitized layer of sufficient thickness is formed on the bearing surface, it is often achieved by presetting the heating temperature or heating time. However, the heating temperature and time of bearings with different materials and specifications are often different, and the best parameters need to be determined through experiments, and the process is relatively cumbersome. Therefore, the applicant expects that during the holding stage of induction heating of the bearing, the inner ring can be fixed and the outer ring can rotate, and the maximum movable distance of the outer ring can be continuously detected during the rotation process to characterize the deformation degree of the bearing, and further characterize its phase transformation coverage rate, that is, whether the core part of the bearing component is heated to the preset temperature so that the whole undergoes a phase transformation during cooling, and then determine the end point of holding, and then design a clamping tool with a rotating function that can cooperate with the foregoing method.

[0003] The existing rotary clamping tools usually have a rotatable placement table with clamping members provided thereon. After placing the parts to be processed on the placement table, the clamping members clamp and fix the parts, and then rotating the placement table can achieve the rotation of the parts. However, when applied to induction heating, since induction heating requires the use of U-shaped iron, if the size of the placement table needs to be adjusted by moving the clamping members to adapt to different bearing sizes and specifications, the volume of the placement table will be large, and thus the volume of the U-shaped iron will also be large. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a rotary clamping tool for induction heating of workpieces, which solves the problem that the volume of the placement table and the U-shaped iron is large when the existing rotary clamping tool is directly applied to induction heating.

[0005] The embodiments of the utility model are realized through the following technical solutions:

[0006] A rotary clamping tool for workpiece induction heating, comprising: a rotary table, a mounting plate, a clamping member and a distance measuring sensor; the rotary table is provided with the opening for the yoke iron to pass through; the top wall of the rotary table is connected to one end of a plurality of mounting plates, the other end of the mounting plate extends from the edge of the rotary table, and a moving groove is provided on the mounting plate. The clamping member is connected to the moving groove, the clamping member can move along the moving groove, and the clamping member is used for clamping the outer ring of the bearing; a distance measuring sensor is provided on the clamping member, and the signal emitting direction of the distance measuring sensor faces the top wall of the rotary placement table and is perpendicular to the plane where the top wall is located.

[0007] Preferably, the mounting plate includes: a fixed section and a telescopic section, a first track is provided along the length direction of the fixed section, and a first slide rail is provided on the side wall of the first track; the telescopic section is accommodated in the first track and is slidably connected to the first slide rail, a second track is provided on the telescopic section, and a second slide rail is provided on the side wall of the second track, and the clamping member is slidably connected to the second slide rail.

[0008] Preferably, the side wall of the first track includes: a first wall and a second wall, the first wall is provided with the first slide rail; the second wall is provided with a third slide rail that slidably cooperates with the clamping member, and the sliding track of the third slide rail is on the same straight line as the sliding track of the second slide rail; during the process of the telescopic section moving on the first track, there is at least one state in which the second slide rail is communicated with the third slide rail.

[0009] Preferably, the length of the first slide rail is greater than or equal to the length of the telescopic section.

[0010] Preferably, the rotary table includes: a cylindrical part and a gear part, the top wall of the cylindrical part is connected to the mounting plate; the top wall of the gear part is connected to the bottom wall of the cylindrical part; this rotary clamping tool further includes: a driving device and a driving gear, the output shaft of the driving device is connected to the driving gear, and the driving gear is in transmission connection with the gear part.

[0011] Preferably, this rotary clamping tool further includes: a support cylinder, the top of the support cylinder passes through the opening, an opening for the end of the U-shaped iron to pass through is provided on the side wall of the support cylinder, and the top wall of the support table is used for supporting the inner ring of the bearing.

[0012] Preferably, the length of the mounting plate extending from the edge of the rotary table is less than or equal to the length of the mounting plate directly above the rotary table.

[0013] Preferably, the clamping member includes: a base and a clamping plate, the base is slidably connected to the mounting plate, and a relief groove is provided on the side wall of the base close to the opening; the clamping plate is accommodated in the relief groove, and the clamping plate has a degree of freedom of movement in the vertical direction in the relief groove.

[0014] Preferably, a sliding groove is provided at the bottom of the give way groove, a ball is provided in the sliding groove, and a slider is provided at one end of the clamping plate away from the opening, and the ball is in contact with the slider.

[0015] Preferably, the length of the clamping plate is greater than that of the sliding groove, and when the slider moves in the sliding groove, a part of the clamping plate always abuts against the bottom of the clearance groove.

[0016] The utility model has at least the following beneficial effects:

[0017] In the present invention, the rotating table is no longer directly connected to the clamping part in a sliding manner, but an additional mounting plate is provided, and a part of the mounting plate extends out from the edge of the rotating table, so that the length of the mounting plate can meet the wide range of motion of the clamping part, reducing the size of the rotating table, and thus preventing the U-shaped iron from being too large; the rotating placement table allows the inner ring of the bearing to be fixed and the outer ring to rotate during the insulation stage of induction heating. During the rotation, the maximum movable distance of the outer ring is continuously detected to characterize the deformation degree of the bearing, and then characterize its phase change coverage, that is, whether the core of the bearing component is heated to a preset temperature so that the entire phase change occurs during cooling, thereby determining the insulation end point, and the strength of the bearing increases after the phase change; before the bearing is heated, the bearing position can be adjusted by rotating the rotating placement table and moving the clamping part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the rotary holding fixture for induction heating of the workpiece;

[0020] Figure 2 This is a schematic diagram of the application of the rotary support tooling;

[0021] Figure 3 is a cross-sectional view of the mounting plate;

[0022] Figure 4 Schematic diagram of the structure of the first track;

[0023] Figure 5 for Figure 2 Detailed view of point A in the middle;

[0024] Icon: 1 - Rotating frustum, 11 - Opening, 12 - Cylindrical part, 13 - Gear part, 2 - Mounting plate, 21 - Moving groove, 22 - Fixed section, 221 - First track, 2211 - First slide rail, 2212 - First wall, 2213 - Second wall, 2214 - Third slide rail, 23 - Telescopic section, 231 - Second track, 2311 - Second slide rail, 3 - Clamping piece, 31 - Base, 311 - Relief groove, 3111 - Slide groove, 3112 - Ball, 32 - Clamping plate, 321 - Slide block, 4 - Distance measuring sensor, 5 - Driving device, 6 - Driving gear, 7 - Support cylinder, 71 - Opening, 8 - Yoke iron, 9 - U-shaped iron, 10 - Coil, 01 - Bearing. Detailed implementation mode

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model are described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0026] Embodiment 1: As Figure 1-2 shown, a rotating clamping tool for workpiece induction heating includes: a rotating frustum 1, a mounting plate 2, a clamping piece 3 and a distance measuring sensor 4; the rotating frustum 1 is provided with the opening 11 for the yoke iron 8 to pass through; the top wall of the rotating frustum 1 is connected to one end of a plurality of mounting plates 2, and the other end of the mounting plate 2 extends from the edge of the rotating frustum 1, and a moving groove 21 is provided on the mounting plate 2. The clamping piece 3 is connected to the moving groove 21, the clamping piece 3 can move along the moving groove 21, and the clamping piece 3 is used for clamping the outer ring of the bearing 01; a distance measuring sensor 4 is provided on the clamping piece 3, and the signal emitting direction of the distance measuring sensor 4 faces the top wall of the rotating placement table and is perpendicular to the plane where the top wall is located.

[0027] During the specific implementation process, a telescopic mechanism can be set above the rotating frustum 1, the yoke iron 8 is connected by the telescopic mechanism to control the up and down movement of the yoke iron 8, and an upper guide rail for the horizontal movement of the telescopic mechanism can also be set. The position of the U-shaped iron 9 is as Figure 2As shown in the figure, a coil 10 is provided on the U-shaped iron 9. During the working process, the yoke iron 8 abuts against the end of the U-shaped iron 9. The telescopic mechanism can adopt a telescopic cylinder or a telescopic oil cylinder. The distance measuring sensor 4 can adopt an infrared distance measuring sensor 4. The heating structure part of the automatic induction heating device refers to the prior art. After the coil 10 is energized, the inner ring of the bearing 01 is heated through the cooperation of the U-shaped iron 9 and the yoke iron 8, and then the whole bearing 01 is heated through heat transfer. After the heating is completed, the yoke iron 8 can be separated from the U-shaped iron 9 through the telescopic mechanism. For large bearings 01, their weight is relatively heavy. If they are vertically hung on the yoke iron 8, the equipment may be damaged. Therefore, in this embodiment, a rotating turntable 1 is set for the case where the bearing 01 is horizontally placed, and it is conceived to use the cooperation of the rotating turntable 1 and the clamping member 3 to realize the rotation of the outer ring of the bearing 01 and continuously collect the movable distance of the outer ring in the axial direction during the heating process through the distance measuring sensor 4. If the distance is reduced to a certain value, it indicates that the expansion value of the bearing 01 has met the requirements. The expansion value is related to the phase change coverage rate of the bearing 01. Given the specifications of the bearing 01 and the expansion coefficient of the material, the expansion value after all parts of the bearing 01, including the core part, reach the critical temperature can be calculated. And the expansion value is inversely proportional to the axial clearance of the bearing 01. Furthermore, the heating end point can be determined through the axial clearance. Since the expansion value at the heat preservation end point can be directly calculated, and the relationship between the expansion value and the axial clearance can be obtained through one test and applied to bearings 01 with only different sizes, that is, when the structures of the bearings 01 are the same but the sizes are different, there is no need to conduct multiple tests to determine the heat preservation time.

[0028] The clamping member 3 can be slidably connected to the moving groove 21 through the slider 321, which is the prior art and will not be elaborated here. By sliding the clamping member 3, the device can adapt to bearings 01 of different specifications. In this embodiment, instead of directly setting a sliding groove 3111 on the rotating turntable 1, an installation plate 2 is added, and the sliding groove 3111 is set through the installation plate 2 to realize the movement of the clamping member 3, which can reduce the floor area of the rotating turntable 1, and thus also reduce the volume of the U-shaped iron 9.

[0029] Embodiment 2: In order to further reduce the volume of the U-shaped iron 9, an improvement is made on the basis of Embodiment 1, as Figure 3 shown. In this embodiment, the installation plate 2 includes: a fixed section 22 and a telescopic section 23. The fixed section 22 is provided with a first track 221 along its length direction, and a first slide rail 2211 is provided on the side wall of the first track 221; the telescopic section 23 is accommodated in the first track 221 and is slidably connected to the first slide rail 2211. The telescopic section 23 is provided with a second track 231, and a second slide rail 2311 is provided on the side wall of the second track 231. The clamping member 3 is slidably connected to the second slide rail 2311.

[0030] In the specific implementation process, the sliding connection structure of the telescopic section 23 and the sliding connection structure of the clamping member 3 can both be realized by the existing slide rail and slider 321 structure. After the structure of the mounting plate 2 is improved to a telescopic structure in this embodiment, the length of the mounting plate 2 can be reduced according to the situation, avoiding the U-shaped iron 9 from obstructing the mounting plate 2 during the rotation of the rotating turntable 1, and accordingly, the volume of the U-shaped iron 9 can be reduced.

[0031] Exemplarily, during use, if the diameter of the bearing 01 is small, the clamping member 3 needs to move a large distance towards the opening 11, and the remaining end of the mounting plate 2 away from the opening 11 will be relatively long, resulting in no change in the volume of the U-shaped iron 9 even when processing a relatively small bearing 01. After the mounting plate 2 is improved to the structure of this embodiment, when clamping the bearing 01, the telescopic section 23 can be first moved so that the telescopic section 23 enters the fixed section 22. The telescopic section 23 can drive the clamping member 3 to move towards the bearing 01. If the clamping member 3 still cannot clamp the bearing 01 after the telescopic section 23 moves to the end point, the clamping member 3 can continue to move along the second track 231 until the clamping member 3 clamps the outer ring of the bearing 01.

[0032] Embodiment 3: When the telescopic section 23 is shorter than the first track 221, in order to increase the movable range of the clamping member 3, improvements are made on the basis of Embodiment 2, as Figure 4 shown. In this embodiment, the side wall of the first track 221 includes: a first wall 2212 and a second wall 2213. The first wall 2212 is provided with the first slide rail 2211; the second wall 2213 is provided with a third slide rail 2214 that slidably cooperates with the clamping member 3. The sliding track of the third slide rail 2214 is on a straight line with the sliding track of the second slide rail 2311; during the movement of the telescopic section 23 on the first track 221, there is at least one state in which the second slide rail 2311 communicates with the third slide rail 2214.

[0033] In the specific implementation process, during the process of the telescopic section 23 retracting into the fixed section 22, when the end of the telescopic section 23 close to the opening 11 reaches the stop wall between the first wall 2212 and the second wall 2213 and cannot move further, the clamping member 3 can be moved to slide on the second track 231. At this time, the slider 321 is slidably connected to the second slide rail 2311. When the clamping member 3 moves to the end of the second track 231, it can continue to move towards the opening 11 direction, the slider 321 enters the third slide rail 2214, and the clamping member 3 enters the first track 221 between the two second walls 2213. The clamping member 3 can move to the end of the fixed section 22, whereby the moving range of the clamping member 3 is larger.

[0034] Embodiment 4: In order to enable the telescopic section 23 to completely enter the fixed section 22 and improve the telescopic ability of the mounting plate 2, improvements are made on the basis of Embodiment 2. In this embodiment, the length of the first slide rail 2211 is equal to the length of the telescopic section 23.

[0035] In the specific implementation process, assume that the total length of the mounting plate 2 is 10 m. If the lengths of the telescopic section 23 and the first slide rail 2211 are inconsistent, roughly estimate that the length of the mounting plate 2 after complete telescoping is based on the longer of the two. For example, if the telescopic section 23 is 4 m long and the fixed section 22 is 6 m long, after complete telescoping, the length of the mounting plate 2 is 6 m, that is, the minimum length of the mounting plate 2 is 6 m. If the lengths of both the first slide rail 2211 and the telescopic section 23 are 5 m, roughly estimated, the minimum length of the mounting plate 2 is 5 m. Therefore, when the length of the first slide rail 2211 is equal to the length of the telescopic section 23, the telescopic ability of the mounting plate 2 is better.

[0036] Embodiment 5: In order to better realize the rotation of the rotary turntable 1, improvements are made on the basis of Embodiments 1-4. As Figure 2 shown, in this embodiment, the rotary turntable 1 includes: a cylindrical portion 12 and a gear portion 13. The top wall of the cylindrical portion 12 is connected to the mounting plate 2; the top wall of the gear portion 13 is connected to the bottom wall of the cylindrical portion 12; this rotary clamping tooling further includes: a driving device 5 and a driving gear 6. The output shaft of the driving device 5 is connected to the driving gear 6, and the driving gear 6 is in transmission connection with the gear portion 13.

[0037] In the specific implementation process, the driving device 5 can adopt a rotary motor. In order to prevent the driving gear 6 from abutting against the mounting plate 2 and thus affecting the rotation of the driving gear 6, in this embodiment, the rotary turntable 1 is improved. A tooth portion in transmission cooperation with the driving gear 6 is provided in the lower half of the rotary turntable 1, so that there is a certain gap between the driving gear 6 and the mounting plate 2. When the driving device 5 drives the driving gear 6 to rotate, the driving gear 6 drives the rotary turntable 1 to rotate, and the clamping member 3 on the rotary turntable 1 drives the outer ring of the bearing 01 to rotate.

[0038] Embodiment 6: In order to reduce the axial movement of the inner ring of the bearing 01, improvements are made on the basis of Embodiment 5. As Figure 2 shown, in this embodiment, this rotary clamping tooling further includes: a support cylinder 7. The top of the support cylinder 7 passes through the opening 11. An opening 71 for the end of the U-shaped iron 9 to pass through is provided on the side wall of the support cylinder 7. The top wall of the support platform is used to support the inner ring of the bearing 01.

[0039] In the specific implementation process, it can be as Figure 2As shown, a pressing block is provided on the yoke 8, and the inner ring of the bearing 01 is clamped and fixed through the cooperation of the pressing block and the support cylinder 7. Since the end of the U-shaped iron 9 needs to abut against the yoke 8, an opening 71 is provided on the side wall of the support cylinder 7, as Figure 2 shown. After the end on the lower side of the U-shaped iron 9 passes through the opening 71, it abuts against the yoke 8 extending into the support cylinder 7.

[0040] Embodiment 7: In order to increase the installation stability of the mounting plate 2, improvements are made on the basis of Embodiment 5. In this embodiment, the length of the mounting plate 2 extending out of the edge of the rotating turntable 1 is less than or equal to the length of the mounting plate 2 directly above the rotating turntable 1.

[0041] During the specific implementation process, since one end of the mounting plate 2 extends out of the rotating turntable 1, if the extending length is relatively long, under the action of its own gravity, the mounting plate 2 will have a relatively large upward warping tendency, affecting its installation stability with the rotating turntable 1. Therefore, in this embodiment, the length of the mounting plate 2 extending out of the edge of the rotating turntable 1 is limited, thereby increasing the stability of the mounting plate 2.

[0042] Embodiment 8: In order to better measure the axial clearance during the rotation of the bearing 01, improvements are made on the basis of Embodiment 5, as Figure 5 shown. In this embodiment, the clamping member 3 includes: a base 31 and a clamping plate 32. The base 31 is slidably connected to the mounting plate 2, and a relief groove 311 is provided on the side wall of the base 31 close to the opening 11; the clamping plate 32 is accommodated in the relief groove 311, and the clamping plate 32 has a vertical degree of freedom of movement in the relief groove 311.

[0043] During the specific implementation process, since the clamping plate 32 has a vertical degree of freedom of movement in the relief groove 311, on the basis of not affecting the radial clamping force of the clamping plate 32 on the bearing 01, the hindrance of the clamping force to the axial movement of the bearing 01 is reduced as much as possible.

[0044] Embodiment 9: In order to further reduce the hindrance of the clamping force to the axial movement of the bearing 01, improvements are made on the basis of Embodiment 8, as Figure 5 shown. In this embodiment, a sliding groove 3111 is provided at the bottom of the relief groove 311, a ball 3112 is provided in the sliding groove 3111, and a slider 321 is provided at one end of the clamping plate 32 away from the opening 11, and the ball 3112 abuts against the slider 321.

[0045] During the specific implementation process, the rolling characteristics of the ball 3112 can be used to reduce the hindrance of the clamping member 3 to the axial movement of the outer ring of the bearing 01. The length of the slider 321 is preferably such that it abuts against at least one ball 3112 at any sliding position, avoiding the slider 321 from entering the gap between adjacent balls 3112.

[0046] Example 10: In order to reduce the influence of the radial clamping force on the ball 3112, an improvement is made on the basis of Example 9. In this embodiment, the length of the clamping plate 32 is greater than the slide groove 3111. When the slider 321 moves in the slide groove 3111, a part of the clamping plate 32 is always in contact with the bottom of the groove 311.

[0047] In the specific implementation process, when clamping the bearing 01, if the radial clamping force is only transmitted to the clamping plate 32 through the ball 3112, the ball 3112 may be damaged by excessive force. Therefore, this embodiment is defined as follows Figure 5 As shown, the clamping plate 32 abuts against the bottom of the clearance groove 311 , and the clamping plate 32 is squeezed by the bottom of the clearance groove 311 to achieve force transmission and reduce the burden on the ball 3112 .

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A rotary clamping tooling for induction heating of workpieces, characterized in that Comprising: A rotating frustum, the rotating frustum is provided with an opening through which a yoke iron passes; A mounting plate, one end of the top wall of the rotating frustum is connected to a plurality of mounting plates, the other end of the mounting plate extends from the edge of the rotating frustum, and a moving groove is provided on the mounting plate; A plurality of clamping members, the clamping members are connected to the moving groove, the clamping members can move along the moving groove, and the clamping members are used for clamping the outer ring of the bearing; A distance measuring sensor, the distance measuring sensor is provided on the clamping member, and the signal emitting direction of the distance measuring sensor faces the top wall of the rotating placement table and is perpendicular to the plane where the top wall is located.

2. The rotary clamping tooling for workpiece induction heating according to claim 1, characterized in that, The mounting plate includes: A fixed section, a first track is provided along the length direction of the fixed section, and a first slide rail is provided on the side wall of the first track; A telescopic section, the telescopic section is accommodated in the first track and is slidably connected to the first slide rail, the telescopic section is provided with a second track, a second slide rail is provided on the side wall of the second track, and the clamping member is slidably connected to the second slide rail.

3. The rotary clamping tooling for workpiece induction heating according to claim 2, wherein, The side wall of the first track includes: A first wall, the first wall is provided with the first slide rail; A second wall, the second wall is provided with a third slide rail that slidably cooperates with the clamping member, and the sliding track of the third slide rail is on the same straight line as the sliding track of the second slide rail; During the process of the telescopic section moving on the first track, there is at least one state in which the second slide rail communicates with the third slide rail.

4. The rotary clamping tooling for workpiece induction heating according to claim 2, wherein, The length of the first slide rail is equal to the length of the telescopic section.

5. The rotary clamping tooling for induction heating of workpieces according to any one of claims 1-4, characterized in that The rotating frustum includes: A cylindrical part, the top wall of the cylindrical part is connected to the mounting plate; A gear part, the top wall of the gear part is connected to the bottom wall of the cylindrical part; This rotating clamping tooling further includes: A driving device; A driving gear, the output shaft of the driving device is connected to the driving gear, and the driving gear is in transmission connection with the gear part.

6. The rotary clamping tooling for workpiece induction heating according to claim 5, characterized in that, This rotating clamping tooling further includes: A support cylinder, the top of the support cylinder passes through the opening, an opening for the end of the U-shaped iron to pass through is provided on the side wall of the support cylinder, and the top wall of the support cylinder is used for supporting the inner ring of the bearing.

7. The rotary clamping tooling for workpiece induction heating according to claim 5, characterized in that, The length of the mounting plate extending beyond the edge of the rotating frustum is less than or equal to the length of the mounting plate directly above the rotating frustum.

8. The rotary clamping tooling for induction heating of workpieces according to claim 5, characterized in that, The clamping member includes: A base, the base is slidably connected to the mounting plate, and a relief groove is provided on the side wall of the base close to the opening; A clamping plate, the clamping plate is accommodated in the relief groove, and the clamping plate has a vertical degree of freedom of movement in the relief groove.

9. The rotary clamping tooling for workpiece induction heating according to claim 8, wherein, A sliding groove is provided at the bottom of the relief groove, the sliding groove is provided with a ball, a slider is provided at one end of the clamping plate away from the opening, and the ball abuts against the slider.

10. The rotary clamping tooling for workpiece induction heating according to claim 9, characterized in that, The length of the clamping plate is greater than that of the sliding groove, and during the process of the slider moving in the sliding groove, a part of the clamping plate always abuts against the bottom of the relief groove.

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