CN215374312U - Residual stress testing device - Google Patents
Residual stress testing device Download PDFInfo
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- CN215374312U CN215374312U CN202122168565.9U CN202122168565U CN215374312U CN 215374312 U CN215374312 U CN 215374312U CN 202122168565 U CN202122168565 U CN 202122168565U CN 215374312 U CN215374312 U CN 215374312U
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- slideway
- slideway base
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Abstract
The utility model relates to the technical field of stress testing, in particular to a residual stress testing device which comprises a slideway base, a sliding block, a turntable, a nut sleeve, a transmission stud, a portable mechanical detection instrument, a bearing and a check ring for a hole, wherein the sliding block is arranged on the slideway base; the top of the slideway base is transversely provided with a slideway; the sliding block is arranged on a slideway on the slideway base in a sliding manner, and a circular groove is vertically arranged on the lower end face of the sliding block; the rotary table is horizontally and rotatably arranged in the circular groove on the sliding block; the bottom of the portable mechanical detection instrument is connected with the bottom of the square groove on the turntable through a bolt; the bearing is arranged on the transmission stud, the nut sleeve is arranged at the bottom of the sliding block, and the nut sleeve is provided with a fourth threaded hole matched with the transmission stud. According to the utility model, the Knoop indenter is used for testing the residual stress, so that the portable mechanical detection instrument can be driven to rotate within the range of 0-90 degrees and move in the X direction to test any point in the test range of the sample, and the use is convenient.
Description
Technical Field
The utility model relates to the technical field of stress testing, in particular to a residual stress testing device.
Background
Many times, the test piece needs to be measured for residual stress, the traditional test method is an indentation strain method, a strain gauge needs to be attached to the test piece, then an indentation with a certain size is manufactured by adopting a spherical pressure head, a strain increment value is recorded by a strain gauge, the residual strain value is obtained by utilizing the relation between elastic strain obtained by calibrating the measured material in advance and the strain increment, and then the residual stress value is obtained by utilizing the hooke's law.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a residual stress testing device aiming at the problem that the existing residual stress detecting method in the background technology is complicated.
The technical scheme of the utility model is as follows: a residual stress testing device comprises a slideway base, a sliding block, a rotary table, a nut sleeve, a transmission stud, a portable mechanical detection instrument, a bearing and a check ring for a hole;
the top of the slide way base is transversely provided with a slide way, the slide way base is transversely provided with a strip-shaped groove which penetrates through the slide way base from top to bottom, one end of the top of the slide way base is provided with a semicircular groove, the other end of the slide way base is provided with a stepped hole, and the periphery of the slide way base is provided with a plurality of groups of first threaded holes; the sliding block is arranged on a slideway on the slideway base in a sliding manner, a first limiting assembly for limiting the sliding of the sliding block is arranged on the sliding block, and a circular groove is vertically formed in the lower end face of the sliding block; the rotary table is horizontally and rotatably arranged in the circular groove on the sliding block, the sliding block is provided with a second limiting assembly for limiting the rotation of the rotary table, and the upper end surface of the rotary table is provided with a square groove; the bottom of the portable mechanical detection instrument is connected with the bottom of the square groove on the turntable through a bolt, and the bottom of the portable mechanical detection instrument is provided with a Knoop pressure head; the bearing is arranged on the transmission stud, a check ring for the shaft is arranged on the bearing, and the check ring for the shaft abuts against the wall of the stepped hole on the slide way base; the hole retainer rings are arranged on the wall of the stepped hole, and the hole retainer rings and the shaft retainer rings are respectively positioned at two sides of the bearing; the nut sleeve is arranged at the bottom of the sliding block and is provided with a fourth threaded hole matched with the transmission stud; the transmission stud is arranged along the length direction of the strip-shaped groove on the slideway base.
Preferably, the first limiting assembly comprises a locking block, a blocking plate and a slideway locking handle; a group of inverted T-shaped grooves are transversely arranged on two sides of the strip-shaped groove on the slideway base, openings are formed in the upper end face and the lower end face of the slideway base by the T-shaped grooves, and the size of the opening at the bottom is larger than that of the opening at the top; the locking block is inserted into the groove wall of the horizontal section in the T-shaped groove in a matching manner, the top of the locking block is attached to the groove wall of the top of the horizontal section of the T-shaped groove, and a second threaded hole is vertically formed in the locking block; the blocking plate is arranged at the bottom of the T-shaped groove, a plurality of groups of opposite first through holes are longitudinally arranged on the blocking plate and the slide way base, and a plurality of groups of third threaded holes opposite to the first threaded holes on the slide way base are longitudinally arranged on the blocking plate; the slide way locking handle comprises a vertical rod part and a rotating handle, the periphery of the vertical rod part is provided with a thread matched with the second threaded hole, the vertical rod part is inserted into the second threaded hole, and the bottom of the rotating handle is attached to the top of the sliding block; the two sets of limiting assemblies are arranged and are symmetrical about the portable mechanical detection instrument.
Preferably, the second limit assembly comprises a locking bolt and a rotational locking handle; the upper end surface of the sliding block is provided with an arc-shaped groove which is communicated with the circular groove; the lower end face of the rotary table is provided with a counter bore, the counter bore forms an opening on the upper end face of the rotary table, the counter bore is opposite to the arc-shaped groove, the bottom of the locking bolt is provided with a stop block, the stop block is inserted into a section of hole with a larger diameter of the counter bore in a matching manner, the top of the locking bolt penetrates through the counter bore and the arc-shaped groove and is connected with the rotary locking handle, and the bottom of the rotary locking handle is attached to the top of the sliding block; the two groups of second limiting assemblies are arranged and are respectively positioned on two sides of the portable mechanical detection instrument.
Compared with the prior art, the utility model has the following beneficial technical effects: during testing, the slide base is fixed on a test piece through the magnet, the chain, the fixing bolt and the like, the Knoop pressure head is used for testing residual stress, the second limiting component is adjusted to drive the portable mechanical detection instrument to rotate within the range of 0-90 degrees, the rotary transmission stud can drive the sliding block to move in the X direction so as to drive the portable mechanical detection instrument to move, any point in the test range of the test sample is tested, the instrument does not need to be repeatedly disassembled to complete the test of multiple parts of the test sample, and the use is more convenient.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a schematic view of the structure of the base of the chute;
FIG. 5 is a schematic structural view of a slider;
FIG. 6 is a schematic structural view of a closure plate;
fig. 7 is a schematic structural view of the turntable.
Reference numerals: 1. a slideway base; 2. a slider; 3. a locking block; 4. a blocking plate; 5. a turntable; 6. locking the bolt; 7. a slideway locking handle; 8. a nut sleeve; 9. a drive stud; 10. a portable mechanics detection instrument; 11. rotating the locking handle; 12. a bearing; 13. a retainer ring for a shaft; 14. a retainer ring for a bore.
Detailed Description
Example one
As shown in fig. 1-7, the residual stress testing device provided by the utility model comprises a slideway base 1, a sliding block 2, a rotary table 5, a nut sleeve 8, a transmission stud 9, a portable mechanical detection instrument 10, a bearing 12 and a retainer ring 14 for a hole;
the top of the slideway base 1 is transversely provided with a slideway, the slideway base 1 is transversely provided with a strip-shaped groove which penetrates through the slideway base from top to bottom, one end of the top of the slideway base 1 is provided with a semicircular groove, the other end of the slideway base 1 is provided with a stepped hole, and the periphery of the slideway base 1 is provided with a plurality of groups of first threaded holes; the sliding block 2 is arranged on a slideway on the slideway base 1 in a sliding manner, a first limiting component for limiting the sliding of the sliding block 2 is arranged on the sliding block 2, and a circular groove is vertically formed in the lower end face of the sliding block 2; the rotary table 5 is horizontally and rotatably arranged in a circular groove on the sliding block 2, a second limiting component for limiting the rotation of the rotary table 5 is arranged on the sliding block 2, and a square groove is formed in the upper end face of the rotary table 5; the bottom of the portable mechanical detection instrument 10 is connected with the bottom of the square groove on the turntable 5 through a bolt, and the bottom of the portable mechanical detection instrument 10 is provided with a Knoop pressure head; a bearing 12 is arranged on the transmission stud 9, a shaft retainer ring 13 is arranged on the bearing 12, and the shaft retainer ring 13 is abutted against the wall of a stepped hole on the slideway base 1; the hole retainer rings 14 are arranged on the wall of the stepped hole, and the hole retainer rings 14 and the shaft retainer rings 13 are respectively positioned on two sides of the bearing 12; the nut sleeve 8 is arranged at the bottom of the sliding block 2, and a fourth threaded hole matched with the transmission stud 9 is formed in the nut sleeve 8; the transmission stud 9 is arranged along the length direction of the strip-shaped groove on the slideway base 1.
In the embodiment, during testing, the slide base 1 is fixed on a test piece through a magnet, a chain, a fixing bolt and the like, the Knoop pressure head is used for testing residual stress, the second limiting component is adjusted to drive the portable mechanical detection instrument 10 to rotate within the range of 0-90 degrees, the rotary transmission stud 9 can drive the sliding block 2 to move in the X direction to drive the portable mechanical detection instrument 10 to move, any point in the test range of the test piece is tested, the instrument does not need to be repeatedly disassembled to complete the multi-part test of the test piece, and the use is more convenient.
The rotary handle of the transmission stud 9 is provided with a knurl, so that the friction force between the rotary handle and a hand is increased, and the manual rotation is more convenient.
Scales are marked on the slide way of the slide way base 1, and the sliding displacement of the slide block 2 on the slide way base 1 can be read in real time.
Example two
Compared with the first embodiment, the residual stress testing device provided by the utility model has the advantages that the first limiting assembly comprises a locking block 3, a blocking plate 4 and a slideway locking handle 7; a group of inverted T-shaped grooves are transversely arranged on two sides of the strip-shaped groove on the slideway base 1, openings are formed in the upper end face and the lower end face of the slideway base 1 by the T-shaped grooves, and the size of the opening at the bottom is larger than that of the opening at the top; the locking block 3 is inserted into the groove wall of the horizontal section in the T-shaped groove in a matching manner, the top of the locking block 3 is attached to the groove wall of the top of the horizontal section of the T-shaped groove, and a second threaded hole is vertically formed in the locking block 3; the blocking plate 4 is arranged at the bottom of the T-shaped groove, a plurality of groups of opposite first through holes are longitudinally arranged on the blocking plate 4 and the slideway base 1, and a plurality of groups of third threaded holes opposite to the first threaded holes on the slideway base 1 are longitudinally arranged on the blocking plate 4; the slide way locking handle 7 comprises a vertical rod part and a rotating handle, the periphery of the vertical rod part is provided with a thread matched with the second threaded hole, the vertical rod part is inserted into the second threaded hole, and the bottom of the rotating handle is attached to the top of the sliding block 2; the two sets of limiting components are arranged and are symmetrical about the portable mechanical detection instrument 10.
In this embodiment, after the sliding block 2 slides to a required position, the sliding block 2 is fixed on the sliding way base 1 by driving the locking block 3 through the sliding way locking handle 7.
EXAMPLE III
Compared with the first embodiment, the second limiting assembly comprises a locking bolt 6 and a rotary locking handle 11; the upper end surface of the sliding block 2 is provided with an arc-shaped groove which is communicated with the circular groove; the lower end face of the rotary table 5 is provided with a counter bore, the counter bore forms an opening on the upper end face of the rotary table 5, the counter bore is opposite to the arc-shaped groove, the bottom of the locking bolt 6 is provided with a stop block, the stop block is inserted into a section of hole with a larger diameter of the counter bore in a matching manner, the top of the locking bolt 6 penetrates through the counter bore and the arc-shaped groove and is connected with the rotary locking handle 11, and the bottom of the rotary locking handle 11 is attached to the top of the sliding block 2; the two sets of second limiting assemblies are respectively positioned on two sides of the portable mechanical detection instrument 10.
In this embodiment, after the rotating disc 5 rotates to a required position, the rotating disc 5 is pressed and fixed on the sliding block 2 by the stop block at the bottom of the locking bolt 6 driven by the rotating locking handle 11.
The arc-shaped groove of the sliding block 2 is provided with angle scales, so that the rotation angle of the rotating disc 5 can be visually observed.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (3)
1. A residual stress testing device is characterized by comprising a slideway base (1), a sliding block (2), a rotary table (5), a nut sleeve (8), a transmission stud (9), a portable mechanical detection instrument (10), a bearing (12) and a check ring (14) for holes;
the top of the slideway base (1) is transversely provided with a slideway, the slideway base (1) is transversely provided with a strip-shaped groove which penetrates through the slideway base from top to bottom, one end of the top of the slideway base (1) is provided with a semicircular groove, the other end of the slideway base (1) is provided with a stepped hole, and the periphery of the slideway base (1) is provided with a plurality of groups of first threaded holes; the sliding block (2) is arranged on a slideway on the slideway base (1) in a sliding manner, a first limiting assembly for limiting the sliding block (2) to slide is arranged on the sliding block (2), and a circular groove is vertically formed in the lower end face of the sliding block (2); the rotary table (5) is horizontally and rotatably arranged in a circular groove on the sliding block (2), a second limiting component for limiting the rotary table (5) to rotate is arranged on the sliding block (2), and a square groove is formed in the upper end face of the rotary table (5); the bottom of the portable mechanical detection instrument (10) is connected with the bottom of the square groove on the turntable (5) through a bolt, and the bottom of the portable mechanical detection instrument (10) is provided with a Knoop pressure head; the bearing (12) is arranged on the transmission stud (9), the bearing (12) is provided with a retaining ring (13) for a shaft, and the retaining ring (13) for the shaft is abutted against the wall of a stepped hole on the slideway base (1); the hole retainer rings (14) are arranged on the wall of the stepped hole, and the hole retainer rings (14) and the shaft retainer rings (13) are respectively positioned on two sides of the bearing (12); the nut sleeve (8) is arranged at the bottom of the sliding block (2), and a fourth threaded hole matched with the transmission stud (9) is formed in the nut sleeve (8); the transmission stud (9) is arranged along the length direction of the strip-shaped groove on the slideway base (1).
2. The residual stress testing device according to claim 1, wherein the first limiting component comprises a locking block (3), a blocking plate (4) and a slideway locking handle (7); a group of inverted T-shaped grooves are transversely arranged on two sides of a strip-shaped groove on the slideway base (1), openings are formed in the upper end face and the lower end face of the slideway base (1) by the T-shaped grooves, and the size of the opening at the bottom is larger than that of the opening at the top; the locking block (3) is inserted into the groove wall of the horizontal section in the T-shaped groove in a matching manner, the top of the locking block (3) is attached to the groove wall of the top of the horizontal section of the T-shaped groove, and a second threaded hole is vertically formed in the locking block (3); the blocking plate (4) is arranged at the bottom of the T-shaped groove, a plurality of groups of opposite first through holes are longitudinally arranged on the blocking plate (4) and the slideway base (1), and a plurality of groups of third threaded holes opposite to the first threaded holes on the slideway base (1) are longitudinally arranged on the blocking plate (4); the slide way locking handle (7) comprises a vertical rod part and a rotating handle, the periphery of the vertical rod part is provided with a thread matched with the second threaded hole, the vertical rod part is inserted into the second threaded hole, and the bottom of the rotating handle is attached to the top of the sliding block (2); the two groups of limiting assemblies are arranged and are symmetrical about the portable mechanical detection instrument (10).
3. The residual stress testing device according to claim 1, wherein the second limiting assembly comprises a locking bolt (6) and a rotation locking handle (11); the upper end surface of the sliding block (2) is provided with an arc-shaped groove which is communicated with the circular groove; the lower end face of the rotary table (5) is provided with a counter bore, the counter bore forms an opening on the upper end face of the rotary table (5), the counter bore is opposite to the arc-shaped groove, the bottom of the locking bolt (6) is provided with a stop block, the stop block is inserted into a section of hole with a larger diameter of the counter bore in a matching manner, the top of the locking bolt (6) penetrates through the counter bore and the arc-shaped groove and is connected with the rotary locking handle (11), and the bottom of the rotary locking handle (11) is attached to the top of the sliding block (2); the two groups of second limiting assemblies are arranged and are respectively positioned on two sides of the portable mechanical detection instrument (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168565.9U CN215374312U (en) | 2021-09-08 | 2021-09-08 | Residual stress testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168565.9U CN215374312U (en) | 2021-09-08 | 2021-09-08 | Residual stress testing device |
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| Publication Number | Publication Date |
|---|---|
| CN215374312U true CN215374312U (en) | 2021-12-31 |
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ID=79619957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122168565.9U Active CN215374312U (en) | 2021-09-08 | 2021-09-08 | Residual stress testing device |
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| Country | Link |
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| CN (1) | CN215374312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858001A (en) * | 2022-03-21 | 2022-08-05 | 中国北方车辆研究所 | Locking mechanism of rotary platform |
-
2021
- 2021-09-08 CN CN202122168565.9U patent/CN215374312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858001A (en) * | 2022-03-21 | 2022-08-05 | 中国北方车辆研究所 | Locking mechanism of rotary platform |
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