CN110631749B - X-ray residual stress detection sample stage - Google Patents
X-ray residual stress detection sample stage Download PDFInfo
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- CN110631749B CN110631749B CN201910812706.0A CN201910812706A CN110631749B CN 110631749 B CN110631749 B CN 110631749B CN 201910812706 A CN201910812706 A CN 201910812706A CN 110631749 B CN110631749 B CN 110631749B
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- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
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Abstract
The invention discloses an X-ray residual stress detection sample stage in the technical field of residual stress detection, and aims to solve the technical problems of low focusing efficiency and long time consumption in residual stress test on a workpiece in multiple directions in the prior art. The sample stage comprises an object carrying device and a position adjusting device connected to the bottom end of the object carrying device, the object carrying device comprises an object carrying table, a positioning adjusting plate, a rotary adjusting spherical body and a base, the object carrying table is sequentially arranged from top to bottom, the object carrying table is fixedly connected with the rotary adjusting spherical body through a rotating shaft, the rotating shaft penetrates through the positioning adjusting plate and is in sliding connection with the positioning adjusting plate along the radial direction, an inner concave spherical surface matched with the rotary adjusting spherical body is arranged on the top surface of the base, the rotary adjusting spherical body is in sliding connection with the base through the inner concave spherical surface, and a positioning mechanism is connected between the positioning adjusting plate and the base.
Description
Technical Field
The invention relates to an X-ray residual stress detection sample stage, and belongs to the technical field of residual stress detection.
Background
X-ray is a few nondestructive testing means in the technology of surface testing residual stress, measures stress according to the change of the crystal face of a material or a product, is still the most extensively, deeply and mature internal stress measuring method researched so far, and is widely applied to various fields of scientific research and industrial production.
In order to comprehensively and accurately evaluate the residual stress, the residual stress of the workpiece in each direction needs to be tested, the existing X-ray residual stress detector can only test the residual stress of the workpiece in one direction at a time, and when the workpiece is changed to another direction, a large test error is easily generated due to the change of the position relative to the position in the previous test, so that a device capable of simply and efficiently completing the detection focusing of the residual stress of the small sample X-ray is needed to be found. Currently, proto, canada, takes a method of connecting a displacement driving device with an X-ray emitter probe, and uses a remote controller to control the probe to move in X, Y, Z three directions so as to complete focusing; the japan PULSTEC company uses a flexible mechanical arm to realize focusing by manually adjusting the position of a probe. When the X-ray residual stress detection is carried out on a small sample, the focusing method is low in efficiency and long in time consumption, the method of Proto corporation of Canada is high in cost, and the method of PULSTEC corporation of Japan is easy to damage a mechanical arm of equipment, reduces the rigidity of the mechanical arm and influences the measurement precision.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an X-ray residual stress detection sample stage to solve the technical problems of low focusing efficiency and long time consumption when residual stress is tested on a workpiece in multiple directions in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a X ray residual stress detects sample platform, includes objective device and connects in the position control device of objective device bottom, objective device includes objective table, location regulating plate, the rotation regulation sphere body and the base that top-down laid in proper order, the objective table passes through rotation axis and rotation regulation sphere body fixed connection, the rotation axis runs through the location regulating plate and along radial rather than sliding connection, the base top surface is equipped with the indent sphere with rotation regulation sphere body looks adaptation, and the rotation regulation sphere body passes through indent sphere and base sliding connection, is connected with positioning mechanism between location regulating plate and the base.
Preferably, the positioning mechanism comprises a supporting screw fixedly connected to the top surface of the base, a compression spring sleeved on the outer side of the supporting screw and a nut matched with the supporting screw, a through hole matched with the supporting screw is formed in the edge of the positioning adjusting plate, and the supporting screw penetrates through the through hole and then is in threaded connection with the nut.
Preferably, the number of the positioning mechanisms is not less than two, and the through holes are distributed on the positioning adjusting plate in a central symmetry manner.
Preferably, the positioning adjustment plate top surface is equipped with rotatory scale, rotatory scale is located the radial outside of objective table and positioning adjustment plate junction, the objective table lateral margin is equipped with the scale pointer.
Preferably, the edge of the object stage is provided with a rotating handle.
Preferably, the position adjusting device comprises a lifting rod and a plane position adjusting structure, the plane position adjusting structure comprises a transverse connecting rod, the top end of the lifting rod is fixedly connected with the base, and the bottom end of the lifting rod is fixedly or slidably connected with the transverse connecting rod.
Preferably, the bottom end of the lifting rod is fixedly connected with the transverse connecting rod, the plane position adjusting structure further comprises a longitudinal connecting rod which is connected with the transverse connecting rod in a sliding mode, and a fixing support is arranged at the bottom of the longitudinal connecting rod.
Preferably, the longitudinal tie rods are provided with two and parallel to each other, the two ends of the transverse tie rod are respectively provided with a hollow cylinder, the two hollow cylinders are respectively sleeved outside the two longitudinal tie rods, and the transverse tie rod axially slides along the longitudinal tie rods through the hollow cylinders.
Preferably, a transverse reinforcing rod is fixedly connected between the two longitudinal connecting rods.
Preferably, the bottom end of the lifting rod is provided with a sliding block, the top surface of the transverse connecting rod is provided with a through groove matched with the sliding block along the axial direction of the transverse connecting rod, and the lifting rod is connected with the transverse connecting rod in a sliding mode through the through groove.
Compared with the prior art, the invention has the following beneficial effects: the rotary adjusting spherical body in the object carrying device is matched with the concave spherical surface, so that the rotation angle of the workpiece can be conveniently adjusted, the surfaces to be detected of the workpiece in different directions face the X-ray emitter, and the focusing efficiency in the small sample X-ray residual stress detection process is improved; the position adjusting device can rapidly adjust the spatial position of the whole workpiece in the X, Y and Z directions to complete the focusing process. The invention has a pure mechanical structure, not only has high focusing speed, but also has convenient operation, strong durability and low cost.
Drawings
FIG. 1 is a top view of an X-ray residual stress testing sample stage according to an embodiment of the present invention;
FIG. 2 is a front view of an X-ray residual stress detection sample stage according to an embodiment of the present invention;
FIG. 3 is a right side view of an X-ray residual stress testing sample stage according to an embodiment of the present invention;
FIG. 4 is a front view of the loading device in an X-ray residual stress detection sample stage according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of the loading device in an X-ray residual stress detection sample stage according to an embodiment of the present invention.
In the figure: 1.1, an objective table; 1.1a, a scale pointer; 1.1b, rotating the handle; 1.2, positioning an adjusting plate; 1.2a, rotating scales; 1.3, a base; 1.4a, a compression spring; 1.4b, a support screw; 1.4c, a nut; 1.5, rotating the adjusting spherical body; 1.5a, a rotating shaft; 2.1, fixing a support; 2.2, a lifting rod; 2.2a, locking screws; 2.3, transverse connecting rods; 2.3a, a hollow cylinder; 2.4, longitudinal connecting rods; 2.5, transverse reinforcing rods.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The first embodiment is as follows:
as shown in fig. 1 to fig. 3, which are a top view, a front view and a right view of an X-ray residual stress detection sample stage according to an embodiment of the present invention, the X-ray residual stress detection sample stage includes a loading device capable of adjusting a rotation angle and a position adjusting device for adjusting a position of the loading device; more specifically, as shown in fig. 4 and 5, there are front and cross-sectional views, respectively, of the carrier device.
The object carrying device comprises an object carrying table 1.1, a positioning adjusting plate 1.2 and a base 1.3 which are arranged from top to bottom, wherein the object carrying table 1.1 is positioned on the positioning adjusting plate 1.2, a rotating shaft 1.5a is arranged on the lower surface of the object carrying table 1.1, a rotating shaft through hole through which the rotating shaft 1.5a can pass is arranged at the central position of the positioning adjusting plate 1.2, and the rotating shaft 1.5a passes through the rotating shaft through hole and is fixedly connected with the upper surface of a rotating adjusting spherical body 1.5; the central position department of base 1.3 upper surface is equipped with and rotates regulation sphere 1.5 complex indent sphere, and location regulating plate 1.2 upper surface is close to objective table 1.1 edge and is equipped with rotatory scale 1.2a, and objective table 1.1 lateral margin is equipped with scale pointer 1.1a, and objective table 1.1 edge is equipped with twist grip 1.1 b. The surface of the positioning adjusting plate 1.2 is rectangular, compression springs 1.4a are fixed on the lower surfaces of four corners of the positioning adjusting plate, and the lower ends of the compression springs 1.4a are fixedly connected with the upper surface of the base 1.3; the compression spring 1.4a is internally sleeved with a supporting screw rod 1.4b, the lower end of the supporting screw rod 1.4b is fixedly connected with the upper surface of the base 1.3, a screw rod through hole for the upper end of the supporting screw rod 1.4b to pass through is formed in the positioning adjusting plate 1.2, and the upper end of the supporting screw rod 1.4b passes through the screw rod through hole and is in threaded connection with the nut 1.4 c. In this embodiment, the object stage 1.1 and the positioning adjustment plate 1.2 are fixedly connected by the chucking of the chucking member, the chucking member shown in the figure is the rotating shaft 1.5a, and the user can select different chucking members as required as long as the chucking between the object stage 1.1 and the positioning adjustment plate 1.2 is fixedly connected.
The position adjusting device comprises a lifting rod 2.2 fixed at the bottom of a base 1.3, the bottom of the lifting rod 2.2 is connected with a transverse connecting rod 2.3 with the axial direction being the X direction, two ends of the transverse connecting rod 2.3 are respectively connected with two longitudinal connecting rods 2.4 with the axial direction being the Y direction in a sliding mode, and a fixed support 2.1 capable of being fixed on a horizontal table top is arranged at the bottom of each longitudinal connecting rod 2.4. In this embodiment, the lifting rod 2.2 is formed by sleeving at least two sleeve assemblies, wherein the top end of the sleeve positioned at the uppermost end is fixedly connected with the bottom of the objective table 1.1, the bottom end of the sleeve positioned at the lowermost end is fixedly connected with the transverse connecting rod 2.3, the sleeves relatively slide along the axial direction to adjust the height of the lifting rod 2.2, and after the height adjustment is finished, every two adjacent sleeves are locked and fixed through a locking screw 2.2a arranged on the side wall of the sleeve at the outer side, so that the adjusted height of the lifting rod 2.2 is fixed; in this embodiment, the specific manner of locking and fixing by the locking screw 2.2a is as follows: in two adjacent sleeves that overlap each other, open on the lateral wall that the outside sleeve is close to its bottom and have the screw through-hole with locking screw 2.2a complex, compress tightly the telescopic outer wall of inboard through twisting locking screw 2.2a into the screw through-hole to realize locking fixedly. In this embodiment, the specific manner of slidably connecting the two end portions of the transverse connecting rod 2.3 with the two longitudinal connecting rods 2.4 is as follows: the two end parts of the transverse connecting rod 2.3 are hollow cylinders 2.3a, the longitudinal connecting rod 2.4 penetrates through the hollow cylinders 2.3a, and the inner surface of the hollow cylinder 2.3a is in sliding fit with the side wall of the longitudinal connecting rod 2.4, so that the transverse connecting rod 2.3 axially slides along the longitudinal connecting rod 2.4. In this embodiment, a transverse reinforcing rod 2.5 for reinforcing the opposite position of the two longitudinal connecting rods 2.4 is disposed between the two longitudinal connecting rods 2.4, the axial direction of the transverse reinforcing rod 2.5 is the X direction, and two end portions of the transverse reinforcing rod 2.5 are fixedly connected to the proximal ends of the two longitudinal connecting rods 2.4 in the same direction, respectively.
Example two:
the present embodiment is basically the same as the first embodiment, except that: in this embodiment, the bottom of the lifting rod 2.2 is not fixedly connected with the transverse connecting rod 2.3, but is slidably connected. The sliding connection is characterized in that: the bottom of the lifting rod 2.2 is provided with a sliding block structure, the upper surface of the transverse connecting rod 2.3 is provided with a transverse through groove which is in sliding fit with the sliding block at the bottom of the lifting rod 2.2 along the axial direction of the transverse connecting rod, and the structures of the sliding block and the transverse through groove are not shown in the drawing.
When the small sample X-ray residual stress detection focusing is carried out, firstly, a workpiece is placed on an objective table 1.1; then, the rotating handle 1.1b is operated to drive the rotating adjusting spherical body 1.5 to slide on the concave spherical surface on the upper surface of the base 1.3, so as to adjust the rotating angle of the workpiece, the surface to be measured of the workpiece faces to the X-ray emitter, the rotating angle of the workpiece can be accurately measured by matching the rotating scale 1.2a with the scale pointer 1.1a, then the nut 1.4c in threaded connection with the supporting screw rod 1.4b is screwed, and the rotating adjusting spherical body 1.5 is driven to be pressed with the concave spherical surface on the upper surface of the base 1.3 through the positioning adjusting plate 1.2, so that the rotating angle of the workpiece is fixed; finally, the spatial position of the workpiece in the X, Y and Z directions is adjusted by operating the position adjusting device, so that accurate focusing between the X-ray emitter and the surface to be measured of the workpiece is quickly realized.
The rotary adjusting spherical body 1.5 in the carrying device is matched with the concave spherical surface, so that the rotation angle of the workpiece can be conveniently adjusted, the surfaces to be detected of the workpiece in different directions are opposite to the X-ray emitter, and the focusing efficiency in the detection of the residual stress of the X-ray of the small sample is improved; the position adjusting device can rapidly adjust the spatial position of the whole workpiece in the X, Y and Z directions to complete the focusing process. The invention is of a pure mechanical structure, is convenient for focusing the surfaces to be measured of the workpieces in different directions, and has the advantages of convenient operation, strong durability and low cost.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a X ray residual stress detects sample platform, characterized by, includes objective device and connects in the position control device of objective device bottom, objective device includes objective table (1.1), location regulating plate (1.2), rotation regulation sphere body (1.5) and base (1.3) that top-down laid in proper order, objective table (1.1) is through rotation axis (1.5 a) and rotation regulation sphere body (1.5) fixed connection, rotation axis (1.5 a) run through location regulating plate (1.2) and along radial rather than sliding connection, base (1.3) top surface is equipped with the indent sphere with rotation regulation sphere body (1.5) looks adaptation, and rotation regulation sphere body (1.5) is through indent sphere and base (1.3) sliding connection, is connected with positioning mechanism between location regulating plate (1.2) and base (1.3).
2. The X-ray residual stress detection sample stage according to claim 1, wherein the positioning mechanism comprises a support screw (1.4 b) fixedly connected to the top surface of the base (1.3), a compression spring (1.4 a) sleeved outside the support screw (1.4 b) and a nut (1.4 c) matched with the support screw (1.4 b), a through hole matched with the support screw (1.4 b) is formed in the edge of the positioning adjusting plate (1.2), and the support screw (1.4 b) penetrates through the through hole and then is in threaded connection with the nut (1.4 c).
3. The X-ray residual stress detection sample stage as claimed in claim 1, wherein the number of the positioning mechanisms is not less than two, and the through holes are distributed on the positioning adjusting plate (1.2) in a central symmetry manner.
4. The X-ray residual stress detection sample stage according to claim 1, wherein a rotary scale (1.2 a) is arranged on the top surface of the positioning adjusting plate (1.2), the rotary scale (1.2 a) is located on the radial outer side of the joint of the object stage (1.1) and the positioning adjusting plate (1.2), and a scale pointer (1.1 a) is arranged on the side edge of the object stage (1.1).
5. The X-ray residual stress detection sample stage according to claim 1, wherein a rotating handle (1.1 b) is arranged at the edge of the object stage (1.1).
6. The X-ray residual stress detection sample stage according to any one of claims 1 to 5, wherein the position adjusting device comprises a lifting rod (2.2) and a plane position adjusting structure, the plane position adjusting structure comprises a transverse connecting rod (2.3), the top end of the lifting rod (2.2) is fixedly connected with the base (1.3), and the bottom end of the lifting rod (2.2) is fixedly or slidably connected with the transverse connecting rod (2.3).
7. The X-ray residual stress detection sample stage according to claim 6, wherein the bottom end of the lifting rod (2.2) is fixedly connected with the transverse connecting rod (2.3), the plane position adjusting structure further comprises a longitudinal connecting rod (2.4) in sliding connection with the transverse connecting rod (2.3), and a fixed support (2.1) is arranged at the bottom of the longitudinal connecting rod (2.4).
8. The X-ray residual stress detection sample stage according to claim 7, wherein two longitudinal connecting rods (2.4) are arranged and parallel to each other, two ends of each transverse connecting rod (2.3) are respectively provided with a hollow cylinder (2.3 a), the two hollow cylinders (2.3 a) are respectively sleeved outside the two longitudinal connecting rods (2.4), and the transverse connecting rods (2.3) axially slide along the longitudinal connecting rods (2.4) through the hollow cylinders (2.3 a).
9. The X-ray residual stress detection sample stage according to claim 8, wherein a transverse reinforcing rod (2.5) is fixedly connected between the two longitudinal connecting rods (2.4).
10. The X-ray residual stress test sample stage according to claim 6, wherein a slide block is arranged at the bottom end of the lifting rod (2.2), a through groove matched with the slide block is arranged on the top surface of the transverse connecting rod (2.3) along the axial direction of the transverse connecting rod, and the lifting rod (2.2) is in sliding connection with the transverse connecting rod (2.3) through the through groove.
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| CN113074852A (en) * | 2021-03-16 | 2021-07-06 | 蒋文春 | Portable residual stress testing device |
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| CN113358258B (en) * | 2021-06-23 | 2023-02-28 | 中国航发沈阳发动机研究所 | System and method for testing residual stress of surface of engine blade |
| CN114199433B (en) * | 2021-11-19 | 2024-04-23 | 张誉元 | Wall residual stress test fixture and operation method thereof |
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