Adjusting tool for testing residual stress of bearing part through X-ray diffraction

Abstract

The utility model relates to an adjusting tool for testing the residual stress of a bearing part through X-ray diffraction. The adjusting tool comprises a bearing part supporting unit, an angle adjusting unit, a measuring unit and the bearing part, the bearing part supporting unit comprises a horizontal base and an angle adjusting plate rotationally arranged on the horizontal base, and a bearing part is arranged on the horizontal base in the direction of one side of the angle adjusting plate and leans against the surface of the angle adjusting plate; an angle adjusting unit is arranged on the horizontal base in the back direction of the angle adjusting plate and is connected between the angle adjusting plate and the horizontal base; the upper portion of the horizontal base penetrating through the angle adjusting plate and the bearing part is connected with the measuring unit through a supporting column arranged in the back face direction of the angle adjusting plate, the bearing is adjusted and limited, the position of the bearing part can be freely adjusted, the to-be-measured surface of the bearing part is kept in the horizontal state, and horizontal calibration is conducted through a light and shadow symmetry superposition method. Bearing inner and outer ferrules in a certain size range can be tested, and the tool is high in universality.

Description

Technical Field

[0001] The utility model relates to an auxiliary tool for testing bearings using X-ray diffraction, in particular to an adjustment tool for testing the residual stress of bearing parts using X-ray diffraction, which is used for adjusting and limiting the parts to be tested and belongs to the field of bearing detection. Background Art

[0002] During the mechanical manufacturing process, residual stress is generated inside parts due to the various processing methods applied individually and in combination. This residual stress has a significant impact on mechanical parts or components. Therefore, it is necessary to measure the residual stress of mechanical parts. Currently, X-ray diffraction is a relatively accurate and commonly used method for measuring metal parts. When measuring residual stress using X-ray diffraction, the surface of the bearing part to be measured must remain horizontal or horizontally symmetrical. For example, for tapered bearings, ball bearings, spherical bearings, etc., when these types of bearings are placed directly, the horizontal state of the surface to be measured, especially the raceway, cannot be guaranteed, making X-ray inspection impossible. Utility Model Content

[0003] In view of the above-mentioned technical problems, the purpose of the present utility model is to provide an adjustment tool for X-ray diffraction testing of residual stress in bearing parts. The tool adjusts and limits the bearings and performs horizontal calibration using the light and shadow symmetry coincidence method, so as to test the inner and outer rings of bearings within a certain size range.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an adjustment tool for X-ray diffraction testing of residual stress of bearing parts, comprising: a bearing part support unit, an angle adjustment unit, a measuring unit and a bearing part; the bearing part support unit comprises a horizontal base and an angle adjustment plate rotatably arranged on the horizontal base, the bearing part is placed on the horizontal base in a side direction of the angle adjustment plate and leans against the surface of the angle adjustment plate, and the surface of the angle adjustment plate away from the placement direction of the bearing part is the back side; an angle adjustment unit is arranged on the horizontal base in the back direction of the angle adjustment plate, and the angle adjustment unit is connected between the angle adjustment plate and the horizontal base; the measuring unit is connected to the support column arranged on the back direction of the angle adjustment plate above the horizontal base of the angle adjustment plate and the bearing part, and the measuring unit corresponds to the position of the measured surface of the bearing part;

[0005] Furthermore, in the bearing part support unit of the present invention, a V-shaped groove is provided on the horizontal base corresponding to the position where the bearing part is placed, and the V-shaped groove of the base cooperates with the angle adjustment plate to form support for the bearing part;

[0006] Furthermore, the horizontal base and the angle adjustment plate are connected by hinges, and hinge seats for cooperating with the hinge shaft are respectively provided near the edges of the upper surfaces of the horizontal base at both ends, and a hinge shaft groove is provided in the area between the two hinge seats.

[0007] The bottom of the angle adjustment plate is provided with a through hole that passes through the hinge shaft, and the bottom is an arc structure that matches the groove; when assembled, the arc portion of the bottom of the angle adjustment plate is placed in the groove between the two hinge seats of the horizontal base, and the hinge shaft passes through the hinge seat and the through hole, so that the angle adjustment plate is connected to the horizontal base and the angle adjustment plate can rotate relative to the horizontal base with the hinge shaft as the rotation center;

[0008] Furthermore, the angle adjustment unit includes: a support rod and a locking mechanism; the support rod is a double-rod structure with a crossbeam, the two rod heads at the same end of the support rod are flush, the two rod heads at one end are connected to the back of the angle adjustment plate, and the two rod heads at the other end are connected to the sliding rod, the sliding rod is slidably connected to the horizontal base and fixed on both sides of the horizontal base by the locking mechanism to achieve support rod positioning, thereby achieving the limitation of the bearing part;

[0009] Furthermore, two mounting grooves are provided on the back of the angle adjustment plate to match the two rod heads of the support rod, and the two rod heads are embedded in the mounting grooves;

[0010] Furthermore, two parallel strip grooves are provided on the upper surface of the horizontal base corresponding to the positions of the support rods, and the two rod heads of the support rods extend into the strip grooves respectively; longitudinal strip slide grooves are provided on the surfaces of the side walls of both sides of the horizontal base, and the sliding rods connected to the support rods are located in the strip slide grooves, and the ends of the sliding rods extend out of the side walls of both sides of the horizontal base to form extension parts;

[0011] Furthermore, the locking mechanism is a nut; the outer diameter of the extension portion of the sliding rod relative to the horizontal base is provided with an external thread that matches the nut; when the sliding rod slides to the desired position, the sliding rod is tightened and fixed by the nut;

[0012] Furthermore, the measuring unit is fixedly connected to the support column via a height adjustment rod, one end of the measuring unit connected to the support column is a fixed end, and the other end is a free end;

[0013] Furthermore, the height adjustment rod is fixedly connected to the support column by a clamp, and the angle adjustment plate is provided with a plurality of adjustment holes from top to bottom, and the height adjustment rod passes through the adjustment holes at the corresponding height positions on the angle adjustment plate;

[0014] Furthermore, the measuring unit comprises: a calibrator provided at the free end of the height adjustment rod, a level being provided on the calibrator, and two cross light sources being symmetrically provided at the lower end of the calibrator, the cross light sources being directed towards the measured surface of the bearing part;

[0015] Furthermore, the two cross light sources are arranged front and back on the calibrator and are located on the same height level line to maintain a horizontal state;

[0016] Furthermore, the calibrator is slidably mounted on the height adjustment rod, so that the calibrator can slide back and forth on the height adjustment rod to facilitate adjustment to a desired position;

[0017] In the above-mentioned measuring unit, the calibrator slides back and forth on the height adjustment rod, and the height can also be adjusted by adjusting the height adjustment rod and the adjustment holes on the angle adjustment plate. It can be adjusted to different positions for calibration of bearing parts of different sizes and widths.

[0018] The method of using the adjustment fixture of the above structure for X-ray diffraction testing of bearings is as follows:

[0019] Place the bearing part to be tested on a horizontal base and support it through the V-groove and angle adjustment plate on the base;

[0020] Adjust the height adjustment rod and the calibrator so that the bubble of the level on the calibrator is at the center point, and the front and rear light sources on the calibrator form images on the surface of the bearing part to be tested with the centers overlapping but the light spots not completely overlapping;

[0021] By adjusting the position of the angle adjustment unit support rod, the angle adjustment plate adjusts the angle of the bearing part until the outer circles of the light spots of the two light sources overlap;

[0022] At this time, the surface of the bearing part to be tested can be ensured to be in a horizontal state, and the height adjustment rod and calibrator can be removed to carry out X-ray inspection.

[0023] The beneficial effects of the adjustment tool for X-ray diffraction testing of residual stress of bearing parts of the utility model are:

[0024] The tooling can adjust and limit the bearings, and the position of the bearing parts can be freely adjusted to keep the surface of the bearing parts to be tested in a horizontal state. The horizontal calibration is performed using the light and shadow symmetry coincidence method. The inner and outer rings of bearings within a certain size range can be tested, and the tooling has strong versatility. At the same time, the tooling can also be used in other test and measurement situations where the bearing level needs to be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of the adjustment tooling of the utility model.

[0026] Figure 2 for Figure 1 Side view (direction C).

[0027] Figure 3 for Figure 2 A-direction view.

[0028] Figure 4 for Figure 2 B-direction view.

[0029] Figure 5 for Figure 1 Horizontal base structure diagram.

[0030] Figure 6 for Figure 1 Angle adjustment plate structure.

[0031] Figure 7 To adjust the state image of the light source in the tooling measurement unit projected onto the surface to be measured of the bearing part.

[0032] Figure 8 To adjust the image of the overlapping state of the light spot projected by the light source in the tooling measurement unit onto the surface to be measured of the bearing part.

[0033] In the figure, 1. bearing part, 2. horizontal base, 3. angle adjustment plate, 4. support column, 5. V-shaped groove, 6. hinge seat, 7. hinge shaft groove, 8. through hole, 9. hinge shaft, 10. support rod, 11. sliding rod, 12. mounting groove, 13. strip groove, 14. strip slide groove, 15. nut, 16. height adjustment rod, 17. clamp, 18. adjustment hole, 19. calibrator, 20. spirit level, 21. cross light source. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] This embodiment is a diffraction test of the residual stress of the outer ring of a tapered bearing. The outer ring of the bearing needs to be adjusted to a horizontal state through the adjustment tool of this solution. The specific structure and operation method are as follows:

[0036] like Figure 1-6The adjustment tooling shown for X-ray diffraction testing of residual stress in a bearing outer ring comprises: a bearing outer ring support unit, an angle adjustment unit, a measuring unit, and a bearing part 1; the bearing outer ring support unit comprises a horizontal base 2 and an angle adjustment plate 3 rotatably disposed on the horizontal base 2; the bearing outer ring 1 is placed on the horizontal base 2 on one side of the angle adjustment plate 3 and leans against the surface of the angle adjustment plate 3, with the surface of the angle adjustment plate 3 away from the placement direction of the bearing outer ring 1 being the back side; an angle adjustment unit is disposed on the horizontal base 2 on the back side of the angle adjustment plate 3, and the angle adjustment unit is connected between the angle adjustment plate 3 and the horizontal base 2; a measuring unit is connected to the horizontal base 2 above the angle adjustment plate 3 and the bearing outer ring 1 via a support column 4 disposed on the back side of the angle adjustment plate 3, and the measuring unit corresponds to the position of the measured surface of the bearing outer ring 1;

[0037] In the bearing outer ring support unit of the present invention, a V-shaped groove 5 is provided on the horizontal base 2 corresponding to the placement position of the bearing part 1, and the V-shaped groove 5 of the base cooperates with the angle adjustment plate 3 to form support for the bearing part 1;

[0038] The rotation of the horizontal base 2 and the angle adjustment plate 3 is connected by a hinge. Both ends of the upper surface of the horizontal base 2 are respectively provided with hinge seats 6 for cooperating with the hinge shaft 9 near the edge. The area between the two hinge seats 6 is provided with a hinge shaft groove 7. The bottom of the angle adjustment plate 3 is provided with a through hole 8 that passes through the hinge shaft 9, and the bottom is an arc structure that cooperates with the groove 7. During assembly, the arc part of the bottom of the angle adjustment plate 3 is placed in the groove 7 between the two hinge seats 6 of the horizontal base 2. The hinge shaft 9 passes through the hinge seat 6 and the through hole 8, so that the angle adjustment plate 3 is connected to the horizontal base 2 and the angle adjustment plate 3 can rotate relative to the horizontal base 2 with the hinge shaft 9 as the rotation center.

[0039] The angle adjustment unit includes: a support rod 10 and a locking mechanism; the support rod 10 is a double-rod structure with a crossbeam, and the two rod heads at the same end of the support rod 10 are flush, the two rod heads at one end are connected to the back of the angle adjustment plate, and the two rod heads at the other end are jointly connected to a sliding rod 11, and the sliding rod 11 is slidably connected to the horizontal base 2 and fixed on both sides of the horizontal base 2 by a locking mechanism to achieve the positioning of the support rod 10, thereby achieving the limit of the bearing outer ring 1;

[0040] Furthermore, the back of the angle adjustment plate 3 is provided with two mounting grooves 12 that match the two rod heads of the support rod 10, and the two rod heads are embedded in the mounting grooves 12;

[0041] Two parallel strip grooves 13 are formed on the upper surface of the horizontal base 2 corresponding to the positions of the support rods 10, and the two rod heads of the support rods 10 extend into the strip grooves 13 respectively; longitudinal strip chute 14 is formed on the side wall surfaces of the horizontal base 2, and the sliding rod 11 connected to the support rods 10 is located in the strip chute 14, and the ends of the sliding rod 11 extend out of the side walls of the horizontal base 2 to form extended portions;

[0042] The locking mechanism is a nut 15; the outer diameter of the extension portion of the sliding rod 11 relative to the horizontal base 2 is provided with an external thread that matches the nut 15; when the sliding rod 11 slides to the desired position, the sliding rod 11 is tightened and fixed by the nut 15;

[0043] The measuring unit is fixedly connected to the support column 4 via a height adjustment rod 16, one end of the measuring unit connected to the support column 4 is a fixed end, and the other end is a free end;

[0044] The height adjustment rod 16 is fixedly connected to the support column 4 at the connection position by a clamp 17. The angle adjustment plate 3 is provided with a plurality of adjustment holes 18 from top to bottom. The height adjustment rod 16 passes through the adjustment holes 18 at the corresponding height positions on the angle adjustment plate 3.

[0045] The measuring unit includes: a calibrator 19 provided at the free end of the height adjustment rod 16, a level 20 provided on the calibrator 19, and two cross light sources 21 symmetrically provided at the lower end of the calibrator 19. The cross light sources 21 face the measured surface of the bearing outer ring 1 and form a light spot on the measured surface of the bearing outer ring 1;

[0046] The two cross light sources 21 are arranged on the calibrator 19 in front and behind and are located on the same height level line, maintaining a horizontal state.

[0047] The method of using the adjustment fixture of the above structure for X-ray diffraction testing of bearings is as follows:

[0048] (1) Place the outer ring 1 of the bearing to be tested on the horizontal base 2 and support it through the V-shaped groove 5 and the angle adjustment plate 3 on the horizontal base 2;

[0049] (2) Adjust the height adjustment rod 16 and the calibrator 19 so that the bubble of the level gauge 20 on the calibrator 19 is at the center point, and the front and rear light sources 21 on the calibrator 19 form images on the surface to be measured of the bearing outer ring 1 with the center overlapping but the light spots not completely overlapping, as shown in the figure. Figure 7 As shown;

[0050] (3) By adjusting the position of the angle adjustment unit support rod 10, the angle adjustment plate 3 adjusts the angle of the bearing outer ring 1 until the outer rings of the light spots of the two light sources 21 coincide with each other, as shown in FIG. Figure 8 As shown;

[0051] (4) At this time, the surface to be tested of the bearing outer ring 1 can be ensured to be in a horizontal state. The height adjustment rod 16 and the calibrator 19 can be removed and the X-ray inspection can be carried out.

[0052] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate 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 an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

Claims

1. An adjustment tool for X-ray diffraction testing of residual stress in bearing parts, characterized in that: include: Bearing parts support unit, angle adjustment unit, measuring unit and bearing parts; The bearing component support unit includes a horizontal base and an angle adjustment plate rotatably arranged on the horizontal base, the bearing component is placed on the horizontal base on one side of the angle adjustment plate and leans against the surface of the angle adjustment plate, and the surface of the angle adjustment plate away from the bearing component placement direction is the back side; An angle adjustment unit is provided on the horizontal base located on the back side of the angle adjustment plate, and the angle adjustment unit is connected between the angle adjustment plate and the horizontal base; a measuring unit is connected above the horizontal base passing through the angle adjustment plate and the bearing part through a support column provided on the back side of the angle adjustment plate, and the measuring unit corresponds to the position of the measured surface of the bearing part.

2. The adjustment tool for X-ray diffraction testing of residual stress in bearing parts according to claim 1, characterized in that: In the bearing part support unit, a V-shaped groove is provided on the horizontal base corresponding to the bearing part placement position, and the V-shaped groove of the base cooperates with the angle adjustment plate to form support for the bearing part.

3. The adjustment tool for X-ray diffraction testing of residual stress in bearing parts according to claim 1, characterized in that: The rotation of the horizontal base and the angle adjustment plate is connected by a hinge manner, and hinge seats for cooperating with the hinge shaft are respectively provided at both ends of the upper surface of the horizontal base near the edge positions, and a hinge shaft groove is provided in the area between the two hinge seats, and the bottom of the angle adjustment plate is provided with a through hole passing through the hinge shaft, and the bottom is an arc structure cooperating with the groove; during assembly, the arc part of the bottom of the angle adjustment plate is placed in the groove between the two hinge seats of the horizontal base, and the hinge shaft passes through the hinge seat and the through hole, so that the angle adjustment plate is connected to the horizontal base and the angle adjustment plate can rotate relative to the horizontal base with the hinge shaft as the rotation center.

4. The adjustment tool for X-ray diffraction testing of residual stress in bearing parts according to claim 1, characterized in that: The angle adjustment unit includes: a support rod and a locking mechanism; the support rod is a double-rod structure with a crossbeam, and the two rod heads at the same end of the support rod are flush, the two rod heads at one end are connected to the back of the angle adjustment plate, and the two rod heads at the other end are connected to the sliding rod together, the sliding rod is slidably connected in the horizontal base and fixed on both sides of the outside of the horizontal base by a locking mechanism to realize the positioning of the support rod, and then realize the limitation of the bearing parts.

5. The adjustment tool for X-ray diffraction testing of residual stress in bearing parts according to claim 4, characterized in that: Two parallel strip grooves are provided on the upper surface of the horizontal base corresponding to the positions of the support rods, and the two rod heads of the support rods extend into the strip grooves respectively; longitudinal strip slide grooves are provided on the surfaces of the side walls on both sides of the horizontal base, and the sliding rods connected to the support rods are located in the strip slide grooves, and the end heads of the sliding rods extend out of the side walls on both sides of the horizontal base to form extended parts.

6. The adjustment tool for X-ray diffraction testing of residual stress in bearing parts according to claim 4, characterized in that: The locking mechanism is a nut; the outer diameter of the extension portion of the sliding rod relative to the horizontal base is provided with an external thread that matches the nut; when the sliding rod slides to the desired position, the sliding rod is tightened and fixed by the nut.

7. The adjustment tool for X-ray diffraction testing of residual stress in bearing parts according to claim 1, characterized in that: The measuring unit is fixedly connected to the support column through a height adjustment rod, one end of the measuring unit connected to the support column is a fixed end, and the other end is a free end; the height adjustment rod is fixedly connected to the support column connection position through a clamp, and a plurality of adjustment holes are provided on the angle adjustment plate from top to bottom, and the height adjustment rod passes through the adjustment holes at the corresponding height positions on the angle adjustment plate.

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