Adjusting device for measuring residual stress

Abstract

The utility model provides an adjusting device for measuring residual stress, which comprises a base provided with a first guide device. The bottom surface of the middle guide device is matched and connected with the first guide device to realize the degree of freedom perpendicular to the radial direction of the sample rod to be measured; a second guide device is arranged on the top surface of the middle guide device and is perpendicular to the first guide device; the first installation base and the second guide device are installed in a matched mode, adjustment parallel to the axial direction of the to-be-measured sample rod is achieved, and the second installation base and the second guide device are installed in a matched mode; and the centering device is provided with a centering mark and is used for positioning the circle center of the ray light spot on the centering mark. The device can adapt to to-be-measured sample rods of different sizes and shapes, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the field of material engineering and preparation technology, and in particular to an adjustment device for measuring residual stress. Background Art

[0002] In the field of materials engineering and preparation, many materials are prone to residual stress during preparation, molding or processing, which may have a negative impact on the performance and stability of the material. The existence of residual stress may cause deformation, cracks, fatigue damage and other problems of the material, limiting its performance in practical applications. Understanding and controlling the residual stress of the material is crucial to ensure the performance, reliability and life of the material.

[0003] Traditional residual stress measurement methods include cutting method, cross-section method, optical method, etc. However, these methods have the disadvantages of complex operation, strong destructiveness, and low measurement accuracy. Especially for the optical method, in the prior art, it is necessary to adjust the measurement position for each sample rod to be measured during each measurement, which is time-consuming and labor-intensive, and reduces the efficiency and accuracy of the measurement.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] The utility model aims to provide an adjustment device for measuring residual stress in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An adjustment device for measuring residual stress, characterized in that:

[0008] A base, wherein a first guide device is provided on the base;

[0009] An intermediate guide device, the bottom surface of which is connected with the first guide device to realize the degree of freedom perpendicular to the radial direction of the sample rod to be measured; the top surface of the intermediate guide device is provided with a second guide device, and the second guide device is perpendicular to the first guide device;

[0010] A first mounting base and a second mounting base, wherein the first mounting base is mounted in cooperation with a second guide device to achieve adjustment parallel to the axial direction of the sample rod to be measured, and the second mounting base is mounted in cooperation with the second guide device;

[0011] A centering device is provided with a centering mark for locating the center of the ray spot on the centering mark.

[0012] Furthermore, the first guide device is a first guide rail, and the bottom surface of the intermediate guide device is provided with a first groove which is mounted in cooperation with the first guide rail, and the intermediate guide device moves relative to the base along the direction of the first guide rail.

[0013] Furthermore, the second guide device is a second guide rail, and the bottom surfaces of the first mounting base and the second mounting base are provided with second grooves that cooperate with the second guide rail, and the first mounting base and the second mounting base move relative to the intermediate guide device along the direction of the second guide rail.

[0014] Furthermore, the first mounting base is provided with a first V-shaped receiving groove, and the second mounting base is a second V-shaped receiving groove.

[0015] Furthermore, it also includes a first locking device, which is used to fix the base and the intermediate guide device;

[0016] The first locking device comprises a first locking bolt and a locking block, the base is provided with the first locking block, and the intermediate guide device is provided with a first locking bolt cooperating with the first locking block;

[0017] Or the base is provided with a first locking bolt, and the intermediate guide device is provided with a first locking block to cooperate with the first locking bolt.

[0018] Furthermore, it also includes a second locking device, which is used to fix the first mounting base, the second mounting base and the guide rail;

[0019] The second locking device includes a second locking bolt and a second locking nut. The side of the first mounting base is provided with the second locking nut. The second locking bolt cooperates with the second locking nut, and the end surface of the second locking bolt abuts against the side of the second guide rail to fix the first mounting base.

[0020] A second locking nut is disposed on the side surface of the second mounting base, and the second locking bolt cooperates with the second locking nut, and the end surface of the second locking bolt abuts against the side surface of the second guide rail to fix the second mounting base.

[0021] Furthermore, the centering device has a U-shaped opening with a V-shaped groove inside, the centering device is placed on the gauge section of the sample rod to be measured, and the upper surface of the centering device has a cross mark.

[0022] Furthermore, the width of the first mounting base is twice the width of the second mounting base.

[0023] Furthermore, a first accommodating groove is provided on the base, and the first accommodating groove is used to accommodate the first locking bolt or the first locking block.

[0024] The utility model enables the device to move freely in a radial direction perpendicular to the sample rod to be measured through the cooperation of the first guide device and the middle guide device on the base, thereby avoiding the problem of needing to adjust the position separately each time measuring, and greatly improving the measuring efficiency; the first mounting base and the second mounting base cooperate with the second guide device to realize the precise adjustment of the measuring device in the axial direction of the sample rod to be measured, making the measuring position more accurate, reducing human errors, and ensuring the measurement accuracy; the setting of the centering device enables the center position of the ray spot to be accurately located on the centering mark, ensuring the stability and reliability of the measuring process; through the first mounting base and the second mounting base with adjustable lengths, the device can adapt to sample rods to be measured of different sizes and shapes, and improves the application range of the device. The utility model provides a residual stress measuring device with simple structure, convenient operation and high measurement accuracy, which has broad application prospects and market potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a schematic diagram of the structure for measuring residual stress in the utility model;

[0027] Figure 2 It is a structural schematic diagram of the intermediate guide device in the utility model;

[0028] Figure 3 It is a structural schematic diagram of the base in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the first mounting base in the utility model;

[0030] Figure 5 It is a structural schematic diagram of the centering device in the utility model;

[0031] Figure 6 It is a structural schematic diagram of the sample rod to be measured in the utility model;

[0032] 10. Base; 11. First guide device; 12. First accommodating chamber; 121. Horizontal panel; 122. Vertical panel; 20. Intermediate guide device; 21. First groove; 22. Second guide device; 30. First locking device; 40. First mounting base; 41. Second groove; 42. First V-shaped accommodating groove; 50. Second mounting base; 60. Centering device; 61. U-shaped opening; 62. Centering mark; 70. Second locking device; 80. Sample rod to be measured; 81. Notch. DETAILED DESCRIPTION

[0033] It should be noted that those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present application are indicated by the claims.

[0034] It should be understood that the present application is not limited to the precise structure described below and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims, and the present utility model is further described in conjunction with the drawings and specific embodiments.

[0035] See also Figures 1 to 4 It is shown that the technical solution adopted in this specific implementation is:

[0036] An adjustment device for measuring residual stress comprises a base 10, on which a first guide device 11 is arranged; an intermediate guide device 20, the bottom surface of which is matched with the first guide device 11 to realize the degree of freedom perpendicular to the radial direction of a sample rod 80 to be measured, and realizes the adjustment of the degree of freedom perpendicular to the radial direction of the sample rod 80 to be measured, that is, the intermediate guide device 20 can move along the first guide device 11; the top surface of the intermediate guide device 20 is provided with a second guide device 22, and the second guide device 22 is perpendicular to the first guide device 11, thereby ensuring that the device can be accurately adjusted in a direction parallel to the axial direction of the sample rod 80 to be measured.

[0037] A first mounting base 40 and a second mounting base 50, wherein the first mounting base 40 is installed in cooperation with the second guide device 22 to achieve adjustment parallel to the axial direction of the sample rod 80 to be measured, and the second mounting base 50 is installed in cooperation with the second guide device 22. The first mounting base 40 and the second mounting base 50 are used to place and install the sample rod 80 to be measured for adjustment in the axial direction to ensure that the sample rod 80 to be measured is in the correct measurement position, and the second mounting base 50 is also cooperated with the second guide device 22 to provide auxiliary support and fixing functions to further improve the stability and accuracy of the device; a centering device 60, wherein the centering device 60 is provided with a centering mark 62 for locating the center of the ray spot on the centering mark 62; by aligning the center of the ray spot with the centering mark 62, it is ensured that the spot position of each measurement is consistent, thereby reducing human errors and improving the accuracy of the measurement.

[0038] In some embodiments of the present application, a scale is provided on the second mounting base 50 for reference of the position adjustment distance when adjusting the measurement area.

[0039] Specifically, the first guide device 11 is a first guide rail, and the bottom surface of the intermediate guide device 20 is provided with a first groove 21 which is installed in cooperation with the first guide rail, and the intermediate guide device 20 moves along the direction of the first guide rail relative to the base 10; preferably, the first guide device 11 can be the first groove 21, and the bottom surface of the intermediate guide device 20 which is provided in cooperation with the first guide device 11 is the first groove 21 which is used in cooperation with the first groove 21.

[0040] Specifically, the first guiding device 11 is a first guide rail. There are two first guide rails arranged on the base 10. The number of first guide rails can also be three, which is determined according to the size of the device for measuring the residual stress of the material. Setting multiple guide rails can ensure the stability of the entire device when adjusting the position of the sample rod 80 to be measured.

[0041] Specifically, the second guide device 22 is a second guide rail, and the bottom surfaces of the first mounting base 40 and the second mounting base 50 are provided with second grooves 41 that cooperate with the second guide rail. The first mounting base 40 and the second mounting base 50 move along the direction of the second guide rail relative to the intermediate guide device 20.

[0042] Specifically, when the device is small, two first guide rails may be used; when the device is large, three first guide rails may be used. The design of multiple guide rails can provide higher guiding accuracy and structural stability, ensuring the stability and accuracy of the entire device when adjusting the position of the sample rod 80 to be measured.

[0043] Specifically, the first mounting base 40 is provided with a first V-shaped receiving groove 42, and the second mounting base 50 is a second V-shaped receiving groove. The first V-shaped receiving groove 42 is used to stabilize and support one end of the sample rod 80 to be measured, ensuring that the sample rod remains stable during the measurement process. The first mounting base 40 is installed in cooperation with the second guide rail through the first groove 21 on its bottom surface to achieve precise adjustment parallel to the axial direction of the sample rod 80 to be measured. By fine-tuning the position of the first mounting base 40, the sample rod 80 to be measured can be accurately positioned at the measurement position; the second V-shaped receiving groove is used to stabilize and support the other end of the sample rod 80 to be measured, and works together with the first V-shaped receiving groove 42 to ensure the stability of the sample rod during the measurement process. The second mounting base 50 is also installed in cooperation with the second guide rail through the second groove 41 on its bottom surface, and can move along the direction of the second guide rail to achieve precise adjustment of the position of the sample rod.

[0044] The V-shaped groove design on the first mounting base 40 and the second mounting base 50 enables the sample rod 80 to be firmly fixed at the measuring position, avoiding the shaking of the sample rod during the measurement process, improving the stability and accuracy of the measurement, and being able to adapt to sample rods of different sizes; through precise adjustment of the first mounting base 40 and the second mounting base 50, multi-degree-of-freedom fine-tuning of the position of the sample rod can be achieved, ensuring that the ray spot can be accurately aligned with the measuring position, reducing human errors, and improving measurement efficiency and repeatability.

[0045] Specifically, the first V-shaped receiving groove 42 on the first mounting base 40 is a non-through design, and its end face is tightly fitted with one end of the sample rod, providing reliable support. The second V-shaped receiving groove on the second mounting base 50 is a through design, so that the other end of the sample rod can be freely placed therein. This design simplifies the installation process of the sample rod and ensures the stability and accuracy of the sample rod during the measurement process.

[0046] For example, when using the device, the operator only needs to place one end of the sample rod in the first V-shaped groove 42, ensuring that it fits tightly against the end surface of the base, and then place the other end of the sample rod in the second V-shaped groove. In this way, the sample rod can be stably supported and accurately positioned during the measurement process.

[0047] Specifically, the width of the first mounting base 40 is twice the width of the second mounting base 50. This increases the stability of the first mounting base 40, enables it to better support the sample rod 80 to be measured during the measurement process, and reduces the shaking caused by the weight of the sample rod or external force.

[0048] Specifically, it also includes a first locking device 30, which is used to fix the base 10 and the intermediate guide device 20; the first locking device 30 includes a first locking bolt and a locking block, the first locking bolt is used to fix the intermediate guide device 20 on the base 10, and the locking block is used to cooperate with the first locking bolt to achieve a stable connection. By setting the first locking device 30, after adjusting the position of the intermediate guide device 20, it can be quickly and firmly fixed on the base 10 to prevent it from moving or shaking during the measurement process, thereby improving the stability of the entire device and the accuracy of the measurement. The design of the first locking device 30 provides a flexible locking method, and different locking and matching methods can be selected according to actual needs, further enhancing the convenience and adaptability of the device.

[0049] In one embodiment of the present invention, a first locking block is provided on the base 10, and a first locking bolt is provided on the intermediate guide device 20. The first locking bolt cooperates with the first locking block by tightening to fix the intermediate guide device 20 on the base 10.

[0050] In another embodiment of the present invention, a first locking bolt is disposed on the base 10, and a first locking block is disposed on the intermediate guide device 20. The first locking block cooperates with the first locking bolt to secure the intermediate guide device 20 on the base 10.

[0051] In one embodiment of the utility model, it also includes a second locking device 70, which is used to fix the first mounting base 40, the second mounting base 50 and the guide rail; the second locking device 70 includes a second locking bolt and a second locking nut, and the side of the first mounting base 40 is provided with a second locking nut. The second locking bolt cooperates with the second locking nut, and the end face of the second locking bolt abuts against the side of the second guide rail to fix the first mounting base 40;

[0052] A second locking nut is provided on the side of the second mounting base 50, and the second locking bolt cooperates with the second locking nut, and the end face of the second locking bolt abuts against the side of the second guide rail to fix the second mounting base 50. The design of the second locking device 70 ensures the stability of the second mounting base 50 and the second mounting base 50 after adjustment, avoids errors caused by movement or shaking of the device during the measurement process, and improves the measurement accuracy. The locking device provides a flexible locking method, and different locking matching methods can be selected according to actual needs. It is easy to operate and has strong adaptability.

[0053] Specifically, it also includes a centering device 60 having a U-shaped opening 61, and a V-shaped groove inside. The centering device 60 is placed on the gauge section of the sample rod 80 to be measured. The upper surface of the centering device 60 has a cross mark, and can be firmly placed on the gauge section of the sample rod 80 to be measured, ensuring good contact and positioning between the centering device 60 and the sample rod. The upper surface of the centering device 60 has a cross mark, and the cross mark is used to locate the center of the ray spot so that it is accurately aligned with the measurement position to ensure accurate measurement.

[0054] In another embodiment of the present application, a first accommodating cavity 12 is further provided on the base 10, and the first accommodating cavity 12 is used to accommodate the first locking bolt or the first locking block. The first accommodating cavity 12 consists of two vertical parts and a horizontal part. The two vertical parts extend upward from the base 10 and are connected at the top through the horizontal part to form an overall inverted U shape, and the horizontal part is provided with a groove in the same extension direction as the first guide device 11. When the intermediate guide device 20 moves along the first wire, the first locking device 30 follows the intermediate guide device 20 to move.

[0055] In a specific implementation, the first accommodating cavity 12 provided on the base 10 is an inverted U-shaped structure composed of two vertical panels 122 of a vertical portion and a horizontal panel 121 of a horizontal portion, so that the first locking device 30 can move with the movement of the intermediate guide device 20. The first locking device 30 includes a first locking bolt and a locking block. When the intermediate guide device 20 moves to a desired position, the locking block can effectively fix the intermediate guide device 20 by tightening the first locking bolt.

[0056] When the position of the intermediate guide device 20 needs to be adjusted, the operator only needs to loosen the first locking bolt to move the intermediate guide device 20 to the desired position along the first guide rail, and then tighten the first locking bolt to make the locking block fit tightly through the groove of the first accommodating cavity 12 to fix the intermediate guide device 20. This design not only improves the flexibility and convenience of operation, but also ensures the stability and accuracy of the device at different positions.

[0057] When measuring the residual stress of the sample rod 80 to be measured, the entire measuring device is fixed to the measuring equipment through the screw base 10, and the centering device 60 is placed on the sample rod 80 to be measured in the notch 81. At this time, the X-ray spot is projected onto the centering standard on the upper surface of the centering device 60. By adjusting the guide rail in the Y direction, the Y direction is perpendicular to the direction of the sample rod to be measured, so that the center of the spot falls on the X direction of the cross mark. At this time, it is ensured that the spot is on the axis of the sample rod 80 in the X direction to ensure the centering in the Y direction. The measured spot is moved When the X-ray measuring device does not have a moving guide rail in the X and Y directions, the second mounting base 50 and the intermediate guide device 20 are used to achieve this. First, the scales on the second mounting base 50 and the intermediate guide device 20 are used to record the moving distance and position between the second mounting base 50 and the intermediate guide device 20. Then, the measurement method mentioned in the first case is used to move the light spot upward along the Y direction axis adjusted in the first step, and advance 0.1 mm each time through the second mounting base 50 and the intermediate guide device 20. The specific measurement length (i.e., the number of advances) is determined according to the width of the notch 81 of the sample rod 80 to be measured, and the corresponding scale coordinates of the second mounting base 50 are recorded at the same time;

[0058] The axial residual stress measurement result of the width of the notch 81 in the second step will obtain a peak-shaped residual stress form. The residual stress shows a peak-shaped distribution along the front advancing direction. The corresponding measurement position of this point can be obtained according to the highest point of the peak. The first guide device 11 and the second guide device 22 are used to move the light spot to the position where the highest point of the peak can be measured. At this time, the first mounting base 40 has been fixed, and the baffle plate above is used as a positioning reference to ensure that when the sample rod 80 to be measured is placed on the notch 81, the light spot is exactly in the middle of the notch 81 in the X and Y directions. At this time, after the measurement reference is determined, batch measurement only needs to place the sample rods 80 to be measured of the same size in sequence for measurement, without adjusting the measurement position of each one individually. This saves measurement time and also improves the stability of the measurement.

[0059] It should be noted that, in the present application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or still includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. Each embodiment in the present application is described in a related manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0060] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. An adjustment device for measuring residual stress, characterized in that: A base, wherein a first guide device is provided on the base; An intermediate guide device, the bottom surface of which cooperates with the first guide device to realize the degree of freedom perpendicular to the radial direction of the sample rod to be measured; the top surface of the intermediate guide device is provided with a second guide device, and the second guide device is perpendicular to the first guide device; A first mounting base and a second mounting base, wherein the first mounting base is mounted in cooperation with a second guide device to achieve adjustment parallel to the axial direction of the sample rod to be measured, and the second mounting base is mounted in cooperation with the second guide device; A centering device is provided with a centering mark for locating the center of the ray spot on the centering mark.

2. The adjusting device according to claim 1, characterized in that: The first guide device is a first guide rail, and the bottom surface of the intermediate guide device is provided with a first groove which is mounted in cooperation with the first guide rail. The intermediate guide device moves relative to the base along the direction of the first guide rail.

3. The adjusting device according to claim 1, characterized in that: The second guide device is a second guide rail. The bottom surfaces of the first mounting base and the second mounting base are provided with second grooves which cooperate with the second guide rail. The first mounting base and the second mounting base move along the direction of the second guide rail relative to the intermediate guide device.

4. The adjusting device according to claim 3, characterized in that: The first mounting base is provided with a first V-shaped receiving groove, and the second mounting base is a second V-shaped receiving groove.

5. The adjusting device according to claim 1, characterized in that: It also includes a first locking device, which is used to fix the base and the intermediate guide device; The first locking device comprises a first locking bolt and a locking block, the base is provided with the first locking block, and the intermediate guide device is provided with a first locking bolt cooperating with the first locking block; Or the base is provided with a first locking bolt, and the intermediate guide device is provided with a first locking block to cooperate with the first locking bolt.

6. The adjustment device according to claim 3, characterized in that: It also includes a second locking device, which is used to fix the first mounting base, the second mounting base and the guide rail; The second locking device includes a second locking bolt and a second locking nut. The side of the first mounting base is provided with the second locking nut. The second locking bolt cooperates with the second locking nut, and the end surface of the second locking bolt abuts against the side of the second guide rail to fix the first mounting base. A second locking nut is disposed on the side surface of the second mounting base, and the second locking bolt cooperates with the second locking nut, and the end surface of the second locking bolt abuts against the side surface of the second guide rail to fix the second mounting base.

7. The adjustment device according to claim 1, characterized in that The centering device has a U-shaped opening with a V-shaped groove inside. The centering device is placed on the gauge section of the sample rod to be measured. The upper surface of the centering device has a cross mark.

8. The adjustment device according to claim 1, characterized in that The width of the first mounting base is twice the width of the second mounting base.

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