CN203191330U - Residual stress in-situ detection system - Google Patents
Residual stress in-situ detection system Download PDFInfo
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- CN203191330U CN203191330U CN2013202040964U CN201320204096U CN203191330U CN 203191330 U CN203191330 U CN 203191330U CN 2013202040964 U CN2013202040964 U CN 2013202040964U CN 201320204096 U CN201320204096 U CN 201320204096U CN 203191330 U CN203191330 U CN 203191330U
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Abstract
The utility model provides a residual stress in-situ detection system, comprising an X-ray residual stress analyzer (1) and a work-piece force application test bed (2), wherein the X-ray residual stress analyzer (1) comprises an X-ray emission gun (11) for carrying out residual stress detection on a detection point on a detected work-piece (10); the work-piece force application test bed (2) comprises a rack (21), a work-piece bracket (22), a force application pressure head (23) and a drive mechanism which is not shown in a figure; the work-piece bracket (22) is fixed on the rack (21); the work-piece bracket (22) supports the detected work-piece (10); the drive mechanism is connected with the force application pressure head (23) and provides the power required by the force application pressure head (23); the force application pressure head (23) can move up and down to exert acting force of different sizes at different times on the detected work-piece (10).
Description
Technical field
The utility model relates to the unrelieved stress that detects hardware, relates in particular to the unrelieved stress in situ detection system that hardware is carried out in situ detection.
Background technology
Material internal still existed after the various external factor that unrelieved stress refers to produce stress were removed, and self keeps the stress of balance.Unrelieved stress directly affects the usability of material, in commercial Application, also affects the application life of workpiece, so the unrelieved stress detection is important measuring technology required in engineering and the research work.At present, the residual stress measuring method that extensively adopts is based on blind hole method and X-ray diffraction method.Wherein, the blind hole method is a kind of destructive test, can carry out execute-in-place, and measuring speed is fast, the result is more accurate, and is less demanding to measuring condition, still, the blind hole method is higher because of its destructiveness, can't implement to detect for indestructible workpiece at all, and range of application is more limited.X-ray diffraction method is the wider unique technology that can nondestructively test unrelieved stress of using at present, but its measurement is surface residual stress, and measured surface is had relatively high expectations, and requires to avoid being out of shape caused interference because of surface local.Thereby X-ray diffraction method is worked under static state mostly.When the residual-stress value that needs measuring workpieces after different stresses, need measure its unrelieved stress again after the application of force processing separately to workpiece, this can cause the unloading repeatedly of workpiece, can't guarantee that X ray analysis of Residual Stress instrument detects the same point of workpiece all the time, also namely can't carry out in situ detection.
Summary of the invention
The purpose of this utility model is to provide a kind of unrelieved stress in situ detection system, the in situ detection of workpiece unrelieved stress is examined in realization, the unrelieved stress of workpiece after different stresses examined in detection, obtains the continuous changing value of arbitrary check point place unrelieved stress and the residual-stress value of any crucial application of force value correspondence.
The utility model relates to a kind of unrelieved stress in situ detection system, it comprises X ray analysis of Residual Stress instrument and workpiece application of force testing table, above-mentioned X ray analysis of Residual Stress instrument possesses the X ray ejecting gun that the check point of being examined on the workpiece is carried out the detection of unrelieved stress, above-mentioned workpiece application of force testing table possesses stand, work support, application of force pressure head and driving mechanism, above-mentioned work support is fixed in above-mentioned stand, above-mentioned work support supports the above-mentioned workpiece of being examined, above-mentioned driving mechanism is connected with above-mentioned application of force pressure head, provide above-mentioned application of force pressure head required power, above-mentioned application of force pressure head can move up and down to described and be examined the acting force that workpiece applies different sizes and different time.
In above-mentioned unrelieved stress in situ detection system, can possess at least one X ray ejecting gun.
In above-mentioned unrelieved stress in situ detection system, above-mentioned work support can support the above-mentioned two ends of being examined workpiece.Like this, examined workpiece when stressed, can be presented the form of three-point bending.
In above-mentioned unrelieved stress in situ detection system, above-mentioned work support can the above-mentioned end of being examined workpiece of a fixed support.Like this, examined workpiece and can be become the semi-girder shape.
When unrelieved stress in situ detection of the present utility model system detects, can be with the above-mentioned two end supports of workpiece of being examined in above-mentioned work support, select check point at the above-mentioned workpiece of being examined, above-mentioned X ray ejecting gun is placed the top of above-mentioned check point, above-mentioned driving mechanism provides power to above-mentioned application of force pressure head, above-mentioned application of force pressure head is the above-mentioned workpiece of being examined of contact downwards, to the above-mentioned workpiece application of force of being examined, the above-mentioned inspection of above-mentioned application of force pressure head contact avoided above-mentioned work support to the above-mentioned position of being examined the strong point of workpiece on the workpiece, after the above-mentioned application of force pressure head application of force, above-mentioned X ray ejecting gun detects the unrelieved stress at above-mentioned check point place.
When this unrelieved stress in situ detection system detects, can change above-mentioned application of force pressure head to the above-mentioned size of being examined the application of force of workpiece, mobile above-mentioned X ray ejecting gun continues the unrelieved stress at the same check point of detection place.According to said method, can continuous monitoring be examined the unrelieved stress of workpiece behind the different loads state.And, if according to 1 unit force, 2 unit forces, 3 unit forces ..., mode increase application of force value gradually, can access the corresponding relation of the variation of unrelieved stress and stressed size.If just simulate the power that applies of certain numerical values recited, then needn't damage and be examined workpiece, only need by the application of force pressure head power of being examined workpiece and applying this numerical value to be got final product, can accomplish Non-Destructive Testing.Owing in applying the process of load, do not need mobile X ray ejecting gun, make the X ray ejecting gun detect at same check point all the time, guaranteed the consistance of check point, can realize being examined the in situ detection of workpiece.
When this unrelieved stress in situ detection system detects, can change above-mentioned application of force pressure head to the above-mentioned application of force time of being examined workpiece, mobile above-mentioned X ray ejecting gun continues the unrelieved stress at the above-mentioned check point of detection place.Can also change the position of above-mentioned check point, detect the above-mentioned unrelieved stress of being examined diverse location on the workpiece.
Above-mentioned unrelieved stress in situ detection system can also possess a plurality of above-mentioned X ray ejecting guns, utilizes this a plurality of X ray ejecting guns, detects the above-mentioned unrelieved stress of being examined a plurality of positions on the workpiece.
According to said method, can simulate the various operating modes of being examined workpiece, examined the unrelieved stress of workpiece after various operating modes.And can obtain the unrelieved stress of unrelieved stress under some typical condition, also can obtain to be examined the unrelieved stress of workpiece before being about to fracture.
When this unrelieved stress in situ detection system detects, can use two above-mentioned X ray ejecting guns, respectively from upper surface and lower surface, detect the above-mentioned unrelieved stress of being examined same check point on the workpiece.
According to the utility model, can realize being examined the in situ detection of workpiece unrelieved stress, examined the unrelieved stress of workpiece after different stresses.And can obtain the continuous changing value of arbitrary check point place unrelieved stress and the unrelieved stress of any crucial application of force value correspondence.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the synoptic diagram of expression first embodiment of the present utility model.
Fig. 2 is the synoptic diagram of the mode of texturing of expression embodiment of the present utility model.
Fig. 3 is the synoptic diagram of the mode of texturing of expression embodiment of the present utility model.
Fig. 4 is the synoptic diagram of the mode of texturing of expression embodiment of the present utility model.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, at this, illustrative examples of the present utility model and explanation are used for explaining the utility model, but not as to restriction of the present utility model.
As shown in Figure 1, unrelieved stress in situ detection of the present utility model system mainly comprises X ray analysis of Residual Stress instrument 1 and workpiece application of force testing table 2.X ray analysis of Residual Stress instrument 1 possesses X ray ejecting gun 11, carries out the detection of unrelieved stress by 11 pairs of check points of X ray ejecting gun.Workpiece application of force testing table 2 possesses stand 21, work support 22, application of force pressure head 23 and not shown driving mechanism.Stand 21 is used for supporting and fixation workpiece support 22.This work support 22 is used for propping up bearing examines workpiece 10.Not shown driving mechanism is connected with application of force pressure head 22, and the power of the required different sizes of application of force pressure head 22 are provided.This application of force pressure head 22 can move up and down.
Below, first embodiment of unrelieved stress in situ detection of the present utility model system is described referring to figs. 1 through Fig. 4.
When the unrelieved stress of workpiece 10 is examined in detection, at first, will be examined workpiece 10 and be positioned over work support 22.In the present embodiment, work support 22 can be examined workpiece 10 from two end supports.Examined workpiece 10 selection check point P then.The X ray ejecting gun 11 of X ray analysis of Residual Stress instrument 1 is placed the top of check point P, adjust X ray ejecting gun 11, make X ray ejecting gun 11 be in the state of the unrelieved stress that can detect check point P.Subsequently, driving mechanism provides power for application of force pressure head 23, and application of force pressure head 23 moves down, and contacts this and is examined workpiece 10, to being examined the acting force that workpiece 10 applies pre-sizing.The position that workpiece 10 is examined in application of force pressure head 23 contact is avoided 22 pairs of strong points of being examined workpiece 10 of work support and is got final product.After 23 pairs of application of force pressure heads are examined the acting force that workpiece 10 applies the stipulated time, utilize X ray ejecting gun 11 to detect the unrelieved stress at above-mentioned check point P place.Thus, examined the unrelieved stress of check point P after different stresses of workpiece 10 by X ray analysis of Residual Stress instrument 1.That is, change the stress of being examined workpiece by changing the application of force 23 pairs of application of force size and/or application of force times of being examined workpiece 10 of pressure head.
Use this unrelieved stress in situ detection system, examined the size of the acting force that workpiece 10 applies by changing 23 pairs of application of force pressure heads, can detect selected check point P after being examined workpiece 10 to be subjected to different big low-forces unrelieved stress.And, by changing the application of force 23 pairs of application of force times of being examined workpiece 10 of pressure head, can under the different situation of the load time of being examined workpiece 10, detect the unrelieved stress of above-mentioned check point P.Thus, can simulate and be examined the situation that workpiece 10 is subjected to any load, thereby detect its unrelieved stress.
As mentioned above, according to unrelieved stress in situ detection of the present utility model system, mobile the inspection under the situation of workpiece not, can guarantee that X ray ejecting gun 11 detects same check point all the time.By changing size and/or the application of force time of the application of force, can accurately carry out continuous detecting to same check point, realize being examined the in situ detection of workpiece unrelieved stress, examined the unrelieved stress of workpiece after different stresses.And, if increase applied force gradually, then can obtain the continuous changing value of arbitrary check point place unrelieved stress.And, examined the acting force that workpiece 10 applies by increasing by 23 pairs of application of force pressure heads, can detect workpiece 10 and be about to fracture unrelieved stress threshold value constantly, the life-span of being examined workpiece 10 for prediction provides reliable residual-stress value.
In the unrelieved stress in situ detection system of above-mentioned embodiment, the position of change detection point P arbitrarily, thus examined the unrelieved stress of diverse location on the workpiece 10.And as shown in Figure 2, also can 23 pairs of application of force pressure heads examined workpiece 10 apply the stipulated time and the size acting force after, utilize two X ray ejecting guns 11, examined the stress at diverse location place on the workpiece 10.In like manner, also can pass through a plurality of X ray ejecting guns 11, detect the unrelieved stress of a plurality of positions.
Moreover, also can be as shown in Figure 3, after 23 pairs of application of force pressure heads were examined the acting force that workpiece 10 applies stipulated time and size, upper surface and the lower surface from being examined workpiece 10 detected same point respectively.After being examined workpiece 10 and being subjected to specified loads, obtain the unrelieved stress on two surfaces up and down at same position place.
In the above-described embodiment, illustrated that work support 22 supports the situation that the unrelieved stress test is carried out at the two ends of being examined workpiece 10.Also can be as shown in Figure 4,22 fixed supports of work support are examined an end of workpiece 10, make that being examined workpiece 10 becomes semi-girder shape shown in Figure 4, an end that does not have work support to support by 23 pairs of application of force pressure heads applies acting force, thereafter, detect by 11 pairs of selected check points of X ray ejecting gun, obtain the unrelieved stress of check point P.
According to the utility model, can not damage under the situation of being examined workpiece, by changing application of force pressure head to size and the application of force time of the acting force of being examined workpiece, simulate and examined the stress of workpiece under different operating modes, mobile the inspection under the situation of workpiece not, can accurately be positioned selected check point all the time, realize being examined the in situ detection of workpiece unrelieved stress, obtain the continuous changing value of this check point place unrelieved stress and the residual-stress value of any application of force value correspondence.By the position of change detection point, can detect the unrelieved stress of any position on the workpiece.And, obtain its unrelieved stress situation under different stresses.
More than technical scheme that embodiment of the present utility model is provided be described in detail, used specific case herein principle and the embodiment of embodiment of the present utility model are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to embodiment of the present utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a unrelieved stress in situ detection system is characterized in that, comprising:
X ray analysis of Residual Stress instrument and workpiece application of force testing table,
Described X ray analysis of Residual Stress instrument possesses the X ray ejecting gun that the check point of being examined on the workpiece is carried out the detection of unrelieved stress,
Described workpiece application of force testing table possesses stand, work support, application of force pressure head and driving mechanism,
Described work support is fixed in described stand, and described work support supports the described workpiece of being examined, and described driving mechanism is connected with described application of force pressure head, provides described application of force pressure head required power,
Described application of force pressure head can move up and down to described and be examined the acting force that workpiece applies different sizes and different time.
2. unrelieved stress in situ detection according to claim 1 system is characterized in that:
Possesses at least one X ray ejecting gun.
3. unrelieved stress in situ detection according to claim 1 and 2 system, it is characterized in that: described work support supports the described two ends of being examined workpiece.
4. unrelieved stress in situ detection according to claim 1 and 2 system is characterized in that: the described end of being examined workpiece of a described work support fixed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202040964U CN203191330U (en) | 2013-04-22 | 2013-04-22 | Residual stress in-situ detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202040964U CN203191330U (en) | 2013-04-22 | 2013-04-22 | Residual stress in-situ detection system |
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| Publication Number | Publication Date |
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| CN203191330U true CN203191330U (en) | 2013-09-11 |
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| CN2013202040964U Expired - Fee Related CN203191330U (en) | 2013-04-22 | 2013-04-22 | Residual stress in-situ detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278513A (en) * | 2013-04-22 | 2013-09-04 | 广州市特种机电设备检测研究院 | In-situ detection system for residual stress, and detection method thereof |
-
2013
- 2013-04-22 CN CN2013202040964U patent/CN203191330U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278513A (en) * | 2013-04-22 | 2013-09-04 | 广州市特种机电设备检测研究院 | In-situ detection system for residual stress, and detection method thereof |
| CN103278513B (en) * | 2013-04-22 | 2015-06-03 | 广州市特种机电设备检测研究院 | In-situ detection system for residual stress, and detection method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |