CN216309627U - Calibration plate mounting table for calibrating non-contact video extensometer - Google Patents
Calibration plate mounting table for calibrating non-contact video extensometer Download PDFInfo
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- CN216309627U CN216309627U CN202122859038.2U CN202122859038U CN216309627U CN 216309627 U CN216309627 U CN 216309627U CN 202122859038 U CN202122859038 U CN 202122859038U CN 216309627 U CN216309627 U CN 216309627U
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Abstract
The utility model discloses a calibration plate mounting table for calibrating a non-contact video extensometer, which comprises a control box, an upper clamping mechanism, a vertical lifting mechanism and a displacement measuring mechanism, wherein the upper clamping mechanism is arranged at the top of the control box and used for clamping a calibration vertical plate, the vertical lifting mechanism is arranged in the control box and used for driving the lower calibration vertical plate to lift, and the displacement measuring mechanism is arranged in the control box and used for measuring the displacement of the lower calibration vertical plate. According to the utility model, the calibration surfaces of the upper calibration vertical plate and the lower calibration vertical plate are limited in the same vertical plane by arranging the upper clamping mechanism and the lower clamping mechanism, so that the measurement error is reduced, and the calibration result is ensured; in addition, the lifting mounting seat in the upper clamping mechanism is convenient for adjusting the height of the upper calibration vertical plate before the calibration operation is started, so that the upper calibration vertical plate is suitable for calibration of different non-contact video extensometers, and the application range is wide.
Description
Technical Field
The utility model belongs to the technical field of extensometer calibration, and particularly relates to a calibration plate mounting table for calibrating a non-contact video extensometer.
Background
The non-contact video extensometer can be matched with various electronic universal test machines and other types of machines. The deformation of the sample is measured by utilizing the sub-pixel method principle, the deformation in the longitudinal direction and the transverse direction can be simultaneously measured in a non-contact mode, the measuring range is determined by the focal length of the lens, and the measuring ranges of various measuring ranges can be obtained by arranging the lenses with different focal lengths. Compared with the traditional contact extensometer, the non-contact extensometer is used as a means for collecting strain components of materials under static load stress, is almost suitable for all materials, has the advantages of large dynamic stroke range, arbitrarily set gauge length, capability of avoiding scratching and slipping of a sample by a knife edge, capability of being used for ultrahigh temperature environment tests and the like, and is widely applied to measurement of related mechanical property indexes in the uniaxial tensile test process in recent years. Based on the working principle of the non-contact extensometer, the problems existing in the calibration of the non-contact extensometer at present mainly include: the calibration rod provided by a supplier of the non-contact extensometer cannot coincide with the axis clamped during the test of the sample during the calibration of the gauge length, and the calibration position is not at the same position as the clamping position during the test, so that the result is influenced, and therefore, the design of the calibration plate mounting table for the calibration of the non-contact video extensometer is particularly urgent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems that aiming at the defects in the prior art, the utility model provides the calibration plate mounting table for calibrating the non-contact video extensometer, which has the advantages of simple structure, reasonable design and strong practicability, and the calibration surfaces of the upper calibration vertical plate and the lower calibration vertical plate are limited in the same vertical plane by arranging the upper clamping mechanism and the lower clamping mechanism so as to reduce the measurement error and ensure the calibration result; in addition, the lifting mounting seat in the upper clamping mechanism is convenient for adjusting the height of the upper calibration vertical plate before the calibration operation is started, so that the upper calibration vertical plate is suitable for calibration of different non-contact video extensometers, and the application range is wide.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a calibration plate mount table is used in calibration of non-contact video extensometer which characterized in that: the device comprises a control box, an upper clamping mechanism, a vertical lifting mechanism and a displacement measuring mechanism, wherein the upper clamping mechanism is arranged at the top of the control box and used for clamping an upper calibration vertical plate; the calibration surfaces of the upper calibration vertical plate and the lower calibration vertical plate are positioned in the same vertical plane, and the upper calibration vertical plate and the lower calibration vertical plate are coaxially arranged;
the upper clamping mechanism comprises a vertical mounting backboard, a lifting mounting seat arranged on the vertical mounting backboard, a first vertical rod arranged on the lifting mounting seat in an inserted mode, a first sleeve sleeved on the first vertical rod and a first target seat fixedly arranged on the first sleeve, wherein the upper calibration vertical plate is embedded on the first target seat, the calibration surface of the upper calibration vertical plate is flushed with the front side surface of the first target seat, a first through groove used for clamping the upper calibration vertical plate is formed in the first target seat, a plurality of first set screws used for clamping the upper calibration vertical plate are arranged on two sides of the first target seat in a penetrating mode, and a plurality of anti-toppling limiting plates used for limiting the upper calibration vertical plate can be detachably connected to the front side surface of the first target seat.
Foretell non-contact video extensometer calibration is with calibration board mount table, its characterized in that: the lifting mounting base comprises a vertical rack arranged at the back of the vertical mounting backboard, a mounting base body arranged on the vertical mounting backboard in a sleeved mode, a fluted disc which is arranged in the mounting base body and meshed with the vertical rack, a rotary handle which is arranged on the mounting base body in a penetrating mode and connected with the fluted disc and controls the rotation of the fluted disc, and a horizontal base which is fixedly arranged on the front side of the mounting base body and used for mounting a first vertical rod, fastening bolts which are abutted to the front side of the mounting base body on the vertical mounting backboard are arranged on the mounting base body in a penetrating mode, and vertical rod limiting screws used for limiting the displacement of the first vertical rod are arranged on the horizontal base in a penetrating mode.
Foretell non-contact video extensometer calibration is with calibration board mount table, its characterized in that: vertical lift mechanism is including fixed motor that sets up in the control box, the vertical threaded rod of setting on motor rotation axis, the cover establish on vertical threaded rod and rather than screw-thread fit's slider, supply the vertical gliding slide rail of slider, two guide bars of wearing to establish in the slider both sides, and fixed setting just wear out the second montant of control box roof at the slider top, the both ends of guide bar all with control box fixed connection, the cover is equipped with the spring on the guide bar of slider upside, first montant is laid with the second montant is coaxial.
Foretell non-contact video extensometer calibration is with calibration board mount table, its characterized in that: the displacement measuring mechanism comprises a grating ruler which is arranged on a vertical surface of the sliding block and is vertically distributed and a grating reading head which is fixed on the inner wall of the control box and is matched with the grating ruler.
Foretell non-contact video extensometer calibration is with calibration board mount table, its characterized in that: the lower clamping mechanism comprises a second sleeve sleeved on a second vertical rod and a second target seat fixedly installed on the second sleeve, a lower calibration vertical plate is embedded on the second target seat, the calibration surface of the lower calibration vertical plate is flush with the front side surface of the second target seat, a second through groove used for clamping the lower calibration vertical plate is formed in the second target seat, a plurality of second set screws used for clamping the lower calibration vertical plate penetrate through two sides of the second target seat, and a plurality of anti-toppling limiting plates used for limiting the upper calibration vertical plate are also arranged on the front side surface of the second target seat; the length of the second target seat is less than the length of the lower fixed riser.
Foretell non-contact video extensometer calibration is with calibration board mount table, its characterized in that: the control box is also internally provided with a controller used for controlling the motor to work and a display screen connected with the controller, and the grating reading head is connected with the controller.
Foretell non-contact video extensometer calibration is with calibration board mount table, its characterized in that: the upper calibration vertical plate and the lower calibration vertical plate are provided with limiting clamping plates, the limiting clamping plates are provided with third through grooves with the same width and depth as the first through grooves, the top of each limiting clamping plate is clamped with the corresponding calibration vertical plate, the bottom of each limiting clamping plate is clamped with the corresponding lower calibration vertical plate, and third set screws used for clamping the upper calibration vertical plate or the lower calibration vertical plate are arranged on the side walls of the limiting clamping plates in a penetrating mode.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the calibration surfaces of the upper calibration vertical plate and the lower calibration vertical plate are limited in the same vertical plane by arranging the upper clamping mechanism and the lower clamping mechanism, so that the measurement error is reduced, and the calibration result is ensured.
2. The lifting mounting seat is arranged, so that the height of the upper calibration vertical plate can be adjusted conveniently before the calibration operation is started, the device is suitable for the calibration of different non-contact video extensometers, and the application range is wide.
3. According to the utility model, the calibration vertical plate is clamped by the target seat, so that the verticality of the calibration vertical plate is ensured, the calibration vertical plate is prevented from toppling over by the anti-toppling limiting plate, the clamping effect of the target seat is enhanced, and the structure is more stable.
In conclusion, the calibrating device is simple in structure, reasonable in design and strong in practicability, and the calibrating surfaces of the upper calibrating vertical plate and the lower calibrating vertical plate are limited in the same vertical plane by arranging the upper clamping mechanism and the lower clamping mechanism, so that the measuring error is reduced, and the calibrating result is ensured; in addition, the lifting mounting seat in the upper clamping mechanism is convenient for adjusting the height of the upper calibration vertical plate before the calibration operation is started, so that the upper calibration vertical plate is suitable for calibration of different non-contact video extensometers, and the application range is wide.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a right side view of fig. 1 with the spacing clip installed.
Description of reference numerals:
1-a control box; 2-calibrating a vertical plate; 3-lower fixed vertical plate;
6-vertically mounting the back plate; 7-a first vertical bar; 8-a first sleeve;
9-a first target holder; 10-a first set screw; 11-anti-toppling limiting plate;
12-a vertical rack; 13-a mount body; 14-fluted disc;
15-rotating the handle; 16-a horizontal base; 17-a fastening bolt;
18-a motor; 19-a vertical threaded rod; 20-a slide block;
21-a slide rail; 22-a guide bar; 23-a second vertical bar;
24-a spring; 25-a grating ruler; 26-a grating reader;
27-a second sleeve; 28-a second target holder; 29-a second set screw;
30-a display screen; 31-a limit splint; 33-a third set screw;
34-a vertical rod limit screw; 35-fourth set screw.
Detailed Description
As shown in fig. 1 and 2, the present invention includes a control box 1, an upper clamping mechanism disposed at the top of the control box 1 and used for clamping an upper calibrated vertical plate 2, a vertical lifting mechanism disposed in the control box 1 and used for driving a lower calibrated vertical plate 3 to lift, and a displacement measuring mechanism disposed in the control box 1 and used for measuring the displacement of the lower calibrated vertical plate 3, wherein the top of the vertical lifting mechanism penetrates through the top plate of the control box 1 and is provided with a lower clamping mechanism used for clamping the lower calibrated vertical plate 3; the calibration surfaces of the upper calibration vertical plate 2 and the lower calibration vertical plate 3 are positioned in the same vertical plane, and the upper calibration vertical plate 2 and the lower calibration vertical plate 3 are coaxially arranged;
the upper clamping mechanism comprises a vertical mounting backboard 6, a lifting mounting seat arranged on the vertical mounting backboard 6, and a first vertical rod 7 arranged on the lifting mounting seat, a first sleeve 8 sleeved on the first vertical rod 7, and a first target seat 9 fixedly arranged on the first sleeve 8, wherein the upper calibration vertical plate 2 is embedded on the first target seat 9, the calibration surface of the upper calibration vertical plate 2 is flushed with the front side surface of the first target seat 9, the first target seat 9 is provided with a first through groove for clamping the upper calibration vertical plate 2, a plurality of first set screws 10 for clamping the upper calibration vertical plate 2 are arranged on two sides of the first target seat 9 in a penetrating manner, and a plurality of anti-falling limiting plates 11 for limiting the upper calibration vertical plate 2 can be detachably connected on the front side surface of the first target seat 9.
It should be noted that the calibration surfaces of the upper calibration vertical plate 2 and the lower calibration vertical plate 3 are limited in the same vertical plane by arranging the upper clamping mechanism and the lower clamping mechanism, so as to reduce the measurement error and ensure the calibration result;
the lifting mounting seat is arranged, so that the height of the upper calibration vertical plate 2 can be adjusted conveniently before the calibration operation is started, the device is suitable for the calibration of different non-contact video extensometers, and the application range is wide;
the calibration vertical plate is clamped by the target seat, so that the verticality of the calibration vertical plate is guaranteed, the calibration vertical plate is prevented from toppling over by the anti-toppling limiting plate 11, the clamping effect of the target seat is enhanced, and the structure is more stable.
In this embodiment, the length of the first target seat 9 is smaller than the length of the upper calibration vertical plate 2, and during actual installation, the top of the first target seat 9 is flush with the top of the upper calibration vertical plate 2.
In this embodiment, the first sleeve 8 is provided with a fourth set screw 35 for fixing the relative position of the first sleeve 8 to the first vertical rod 7.
In this embodiment, the lift mount pad includes that the vertical rack 12 that sets up at the vertical installation backplate 6 back, the cover establishes the mount pad body 13 on vertical installation backplate 6, set up in the mount pad body 13 and with vertical rack 12 engaged with fluted disc 14, wear to establish on the mount pad body 13 and be connected with fluted disc 14 and control the rotatory handle 15 of fluted disc 14 and fixed the horizontal base 16 that sets up in the front side of mount pad body 13 and be used for installing first montant 7, wear to be equipped with the fastening bolt 17 of butt on vertical installation backplate 6 on the mount pad body 13, wear to be equipped with the montant stop screw 34 that is used for restricting the displacement of first montant 7 on the horizontal base 16.
It should be noted that, before the device starts to be used, the rotating handle 15 is controlled to drive the mounting seat body 13 to ascend or descend to a specified position, and the mounting seat body is fixed by the fastening bolt 17, so that the position of the upper calibration vertical plate 2 is fixed, and in the subsequent calibration process, the position of the upper calibration vertical plate 2 is fixed, and only the lower calibration vertical plate 3 ascends and descends.
In this embodiment, vertical lift mechanism is including fixed motor 18 that sets up in control box 1, set up at the rotatory epaxial vertical threaded rod 19 of motor 18 rotation, the cover is established on vertical threaded rod 19 and rather than screw-thread fit's slider 20, supply the vertical gliding slide rail 21 of slider 20, two guide bars 22 of wearing to establish in slider 20 both sides, and fixed setting at the slider 20 top and wear out the second montant 23 of control box 1 roof, the both ends of guide bar 22 all with control box 1 fixed connection, the cover is equipped with spring 24 on the guide bar 22 of slider 20 upside, first montant 7 and the coaxial laying of second montant 23.
It should be noted that, through the screw-thread fit of the vertical screw rod 19 and the slide block 20, the rotational motion of the rotating shaft of the motor 18 is converted into a linear motion, so as to drive the lower calibration vertical plate 3 to vertically lift, thereby realizing the calibration of the longitudinal indication value of the extensometer.
It should be noted that the slide rail 21 and the guide rod 22 are arranged to limit the movement track of the slider 20, so that the slider 20 can vertically move up and down, and the spring 24 can stabilize the moving process of the slider 20.
In this embodiment, the displacement measuring mechanism includes a grating ruler 25 disposed on a vertical surface of the slider 20 and vertically disposed, and a grating reading head 26 fixed on the inner wall of the control box 1 and matched with the grating ruler 25.
It should be noted that, by the mutual cooperation of the grating ruler 25 and the grating reading head 26, the grating reading head 26 can accurately read the lifting distance of the slider 20, that is, the lifting distance of the lower fixed vertical plate 3, and display the lifting distance on the display screen 30 for reading the displacement data.
In this embodiment, the lower clamping mechanism includes a second sleeve 27 sleeved on the second vertical rod 23 and a second target seat 28 fixedly installed on the second sleeve 27, the lower calibration vertical plate 3 is embedded on the second target seat 28, the calibration surface of the lower calibration vertical plate 3 is flush with the front side surface of the second target seat 28, a second through groove for clamping the lower calibration vertical plate 3 is formed on the second target seat 28, a plurality of second set screws 29 for clamping the lower calibration vertical plate 3 are arranged on two sides of the second target seat 28 in a penetrating manner, and a plurality of anti-toppling limiting plates 11 for limiting the upper calibration vertical plate 2 are also arranged on the front side surface of the second target seat 28; the length of the second target seat 28 is less than the length of the lower target riser 3.
In this embodiment, the second sleeve 27 is also provided with a fourth set screw 35 for fixing the relative position of the second sleeve 27 to the second vertical rod 23.
In this embodiment, a controller for controlling the operation of the motor 18 and a display screen 30 connected to the controller are further disposed in the control box 1, and the grating reading head 26 is connected to the controller.
In this embodiment, be provided with spacing splint 31 between last demarcation riser 2 and the lower demarcation riser 3, spacing splint 31 is last seted up with first logical groove width and the equal same third logical groove of degree of depth, and demarcation riser 2 is clamped on spacing splint 31 top, and demarcation riser 3 is clamped down to spacing splint 31 bottom, wears to be equipped with the third holding screw 33 that is used for pressing from both sides tight last demarcation riser 2 or lower demarcation riser 3 on the spacing splint 31 lateral wall.
It should be noted that, because first montant 7 is connected and is not fixed for the suit with first sleeve pipe 8 only, second montant 23 is with the relation of connection of second sleeve pipe 27 on the same side, consequently can't confirm go up the calibration face of demarcation riser 2 and lower calibration riser 3 and be located same vertical plane, can be in same vertical plane with the calibration face alignment of last demarcation riser 2 and lower calibration riser 3 through setting up spacing splint 31, first sleeve pipe 8 and the coaxial laying of second sleeve pipe 27 are convenient for carry out subsequent calibration work.
In this embodiment, spacing splint 31's bottom plate is hollow out construction, and aim at reduces spacing splint 31's dead weight, prevents that spacing splint 31 from influencing the mounted position of last demarcation riser 2 and lower demarcation riser 3.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a calibration plate mount table is used in calibration of non-contact video extensometer which characterized in that: the device comprises a control box (1), an upper clamping mechanism which is arranged at the top of the control box (1) and used for clamping and installing a calibration vertical plate (2), a vertical lifting mechanism which is arranged in the control box (1) and used for driving a lower calibration vertical plate (3) to lift, and a displacement measuring mechanism which is arranged in the control box (1) and used for measuring the displacement of the lower calibration vertical plate (3), wherein the top of the vertical lifting mechanism penetrates through a top plate of the control box (1) and is provided with a lower clamping mechanism used for clamping the lower calibration vertical plate (3); the calibration surfaces of the upper calibration vertical plate (2) and the lower calibration vertical plate (3) are positioned in the same vertical plane, and the upper calibration vertical plate (2) and the lower calibration vertical plate (3) are coaxially arranged;
the upper clamping mechanism comprises a vertical mounting backboard (6), a lifting mounting seat arranged on the vertical mounting backboard (6), a first vertical rod (7) inserted on the lifting mounting seat, a first sleeve (8) sleeved on the first vertical rod (7) and a first target seat (9) fixedly arranged on the first sleeve (8), an upper calibration vertical plate (2) is embedded on the first target seat (9), the calibration surface of the upper calibration vertical plate (2) is flush with the front side surface of the first target seat (9), a first through groove for clamping the upper calibration vertical plate (2) is formed in the first target seat (9), a plurality of first fastening screws (10) for clamping the upper calibration vertical plate (2) are arranged on two sides of the first target seat (9) in a penetrating manner, the front side surface of the first target seat (9) is detachably connected with a plurality of anti-toppling limiting plates (11) used for limiting the upper calibration vertical plate (2).
2. The calibration plate mounting table for non-contact video extensometer calibration of claim 1, wherein: the lifting mounting base comprises a vertical rack (12) arranged at the back of a vertical mounting backboard (6), a mounting base body (13) sleeved on the vertical mounting backboard (6), a fluted disc (14) arranged in the mounting base body (13) and meshed with the vertical rack (12), a rotating handle (15) arranged on the mounting base body (13) in a penetrating mode and connected with the fluted disc (14) to control rotation of the fluted disc (14), and a horizontal base (16) fixedly arranged on the front side of the mounting base body (13) and used for mounting a first vertical rod (7), fastening bolts (17) abutted to the vertical mounting backboard (6) are arranged on the mounting base body (13) in a penetrating mode, and vertical rod limiting screws (34) used for limiting displacement of the first vertical rod (7) are arranged on the horizontal base (16) in a penetrating mode.
3. The calibration plate mounting table for non-contact video extensometer calibration of claim 1, wherein: vertical lift mechanism is including fixed motor (18) that sets up in control box (1), set up vertical threaded rod (19) at motor (18) rotation epaxial, the cover is established on vertical threaded rod (19) and rather than screw-thread fit's slider (20), supply slider (20) vertical gliding slide rail (21), two guide bars (22) of wearing to establish in slider (20) both sides, and fixed second montant (23) that set up at slider (20) top and wear out control box (1) roof, the both ends of guide bar (22) all with control box (1) fixed connection, the cover is equipped with spring (24) on guide bar (22) of slider (20) upside, first montant (7) are laid with second montant (23) are coaxial.
4. The calibration plate mounting table for non-contact video extensometer calibration of claim 3, wherein: the displacement measuring mechanism comprises a grating ruler (25) which is arranged on a vertical surface of the sliding block (20) and vertically distributed and a grating reading head (26) which is fixed on the inner wall of the control box (1) and matched with the grating ruler (25).
5. The calibration plate mounting table for non-contact video extensometer calibration of claim 1, wherein: the lower clamping mechanism comprises a second sleeve (27) sleeved on a second vertical rod (23) and a second target seat (28) fixedly installed on the second sleeve (27), a lower calibration vertical plate (3) is embedded on the second target seat (28), the calibration surface of the lower calibration vertical plate (3) is flush with the front side surface of the second target seat (28), a second through groove used for clamping the lower calibration vertical plate (3) is formed in the second target seat (28), a plurality of second fastening screws (29) used for clamping the lower calibration vertical plate (3) are arranged on two sides of the second target seat (28) in a penetrating mode, and a plurality of anti-falling limiting plates (11) used for limiting the upper calibration vertical plate (2) are also arranged on the front side surface of the second target seat (28); the length of the second target seat (28) is smaller than the length of the lower fixed vertical plate (3).
6. The calibration plate mounting table for non-contact video extensometer calibration of claim 4, wherein: the control box (1) is also internally provided with a controller for controlling the motor (18) to work and a display screen (30) connected with the controller, and the grating reading head (26) is connected with the controller.
7. The calibration plate mounting table for non-contact video extensometer calibration of claim 2, wherein: go up to mark and be provided with between riser (2) and lower riser (3) spacing splint (31), set up on spacing splint (31) with first logical groove width and the equal same third logical groove of degree of depth clamp down and mark riser (2), spacing splint (31) top clamps down riser (3), and spacing splint (31) bottom clamps down riser (3), wears to be equipped with on spacing splint (31) lateral wall to be used for pressing from both sides the third holding screw (33) of tightly marking riser (2) or down riser (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859038.2U CN216309627U (en) | 2021-11-22 | 2021-11-22 | Calibration plate mounting table for calibrating non-contact video extensometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859038.2U CN216309627U (en) | 2021-11-22 | 2021-11-22 | Calibration plate mounting table for calibrating non-contact video extensometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216309627U true CN216309627U (en) | 2022-04-15 |
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ID=81123373
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122859038.2U Active CN216309627U (en) | 2021-11-22 | 2021-11-22 | Calibration plate mounting table for calibrating non-contact video extensometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216309627U (en) |
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2021
- 2021-11-22 CN CN202122859038.2U patent/CN216309627U/en active Active
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