CN106289949B - Centering device and method for tensile sample - Google Patents
Centering device and method for tensile sample Download PDFInfo
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- CN106289949B CN106289949B CN201510278073.1A CN201510278073A CN106289949B CN 106289949 B CN106289949 B CN 106289949B CN 201510278073 A CN201510278073 A CN 201510278073A CN 106289949 B CN106289949 B CN 106289949B
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Abstract
The device and the method for centering the tensile sample can conveniently and rapidly realize the accurate centering of the tensile samples of metal and nonmetal plates with different widths. The device comprises a driving mechanism, driven mechanisms, a detection mechanism, insulated wires, a conducting plate and an operation table, wherein a chuck hole is formed in the operation table, two sets of driven mechanisms are symmetrically arranged at two ends of the chuck hole of the operation table, symmetrical planes of the two sets of driven mechanisms are perpendicular to the working surface of the chuck, loop bars on the two sets of driven mechanisms are coaxially arranged, the driving mechanism is arranged on the operation table, the symmetrical planes of the driving mechanism are overlapped with the symmetrical planes of the two sets of driven mechanisms, the driving mechanism is connected with the two sets of driven mechanisms through the two insulated wires, the two insulated wires are equal in length, and the detection mechanism is connected with loop bars of the two driven mechanisms through copper wires; when the nonmetallic plate sample is centered, the conductive plate is stuck on the surface of the sample, and the transverse center line of the conductive plate and the axes of the two loop bars are on the same horizontal plane.
Description
Technical Field
The invention relates to the field of mechanical property testing of materials, in particular to a centering device and method for multi-specification tensile samples with higher accuracy requirements in a testing process.
Background
With the continuous and intensive research of material science, the requirements of the rigor of the test process and the accuracy of the test result are higher and higher. In some nonstandard tests of engineering mechanics, the specification of the test sample is often different, and the centering requirement on the test process is very high, namely, the center line of the test sample and the center line of the chuck are ensured to be completely overlapped, so that the test sample is prevented from being influenced by additional shearing force, bending moment, torque and the like in the uniaxial tension process, and abnormal performance indexes such as yield strength and the like are avoided.
In the conventional tensile test process, centering is achieved by adjusting a positioning device positioned on the side surface of the test sample on the test machine, and the test sample is ensured to be vertical by continuously adjusting the length of a positioning ruler. The "vertical centering fixture for tensile tester specimen" disclosed in patent document CN201707256U is an improvement over conventional positioning rules. The automatic centering device for the test sample of the testing machine disclosed in the patent document with the patent number of CN101598526A has higher automation degree. However, for tensile specimens of different specifications, particularly different widths, the centering manner described above makes it difficult to ensure that the specimen center line and the collet center line completely coincide, thereby making accurate centering difficult.
Disclosure of Invention
The invention aims to provide a device and a method for centering tensile samples, which can conveniently and rapidly realize accurate centering of metal and nonmetal plate tensile samples with different width specifications.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a tensile sample's centering device, includes driving mechanism, driven mechanism, detection mechanism, insulated wire, current conducting plate, operation panel be provided with the chuck hole on the operation panel, the chuck sets up in the chuck hole, installs two sets of driven mechanisms at the both ends symmetry in operation panel chuck hole, and the symmetry plane of two sets of driven mechanisms is the perpendicular plane of chuck working face, and the loop bar on two sets of driven mechanisms is coaxial to be set up, driving mechanism installs on the operation panel, and the symmetry plane of driving mechanism coincides with the symmetry plane of two sets of driven mechanisms, and the one end and the loop bar fixed connection of driven mechanism of insulated wire, the other end of insulated wire passes drum and the frame fixed connection on the driving mechanism, and the insulated wire is equidistant with the loop bar of two driven mechanisms of connection driven mechanism respectively at the connection driven mechanism with two insulated wires of driving mechanism of frame, detection mechanism through copper wire; when the nonmetallic plate sample is centered, the conducting plate is stuck on the surface of the sample, and the transverse center line of the conducting plate and the axes of the two loop bars are on the same horizontal plane.
The driving mechanism comprises cylinders, a sliding block, a screw rod, screw rod supports, rotating hand wheels and a frame, wherein the sliding block is placed on the operating platform, the upper end of the sliding block takes the longitudinal central line of the sliding block as a symmetrical axis, two cylinders are symmetrically welded, threaded holes are formed in the sliding block, the frame is fixed on the operating platform, the screw rod sequentially penetrates through ratchet holes and the threaded holes of the sliding block in the frame, the screw rod is radially fixed with the ratchet wheels, the two ends of the screw rod are arranged on the screw rod supports, the screw rod supports are fixed on the operating platform, and the rotating hand wheels are installed at the operating ends of the screw rod.
The frame comprises a frame body, a ratchet wheel and a pawl, wherein the bottom of the frame body is fixedly connected with the operating platform, and the pawl and the ratchet wheel which are matched with each other are arranged below the frame body.
The driven mechanism comprises a sleeve, a loop bar, an insulating pad, a wiring terminal and a fixing ring, wherein the insulating pad is fixed on the operating platform, the sleeve is fixed at the upper end of the insulating pad, the loop bar is arranged in the sleeve, the sleeve is in clearance fit with the loop bar, the fixing ring is fixed at one end, close to the clamping head, of the loop bar, the fixing ring is connected with an insulating wire, and the wiring terminal is fixed on the loop bar.
The detection mechanism comprises a universal meter and copper wires, and the anode and the cathode of the universal meter are respectively connected with the copper wires.
The method for centering the tensile sample by adopting the centering device of the tensile sample comprises the following method steps when the tensile sample is of a metal plate type:
1) Placing the sample between two chucks, and tightening the chucks to make the gap between the chucks and the sample as small as possible but not equal to zero;
2) Checking a wire connection circuit, ensuring that the copper wire is connected with each mechanism correctly, opening a universal meter, and dialing to a resistance gear;
3) Pulling the rotary hand wheel to enable the sliding block to drive the cylinder to move towards the direction of the sample, and enabling the insulating wire to drive the two loop bars to move towards the direction of the sample under the action of the cylinder;
4) When the two loop bars fully contact the sample, immediately checking the reading of the universal meter, if the resistance is zero, loosening the rotary hand wheel, and locking the ratchet wheel by the pawl in the frame at the moment, so that the sliding block and the loop bars are locked from displacement;
5) If the resistance is not zero, continuing to pull the rotary hand wheel until the resistance is zero;
6) The chucks on both sides of the sample are fully clamped, and the centered sample is fixed.
When the tensile specimen is of the non-sheet metal type, the method comprises the following method steps:
1) Placing the sample between two chucks, and tightening the chucks to make the gap between the chucks and the sample as small as possible but not equal to zero;
2) The conductive plate is stuck to the sample, so that the central line of the conductive plate and the axis of the loop bar are ensured to be on the same horizontal plane, and the loop bar is contacted with the conductive plate when contacting with the sample;
3) Checking a wire connection circuit, ensuring that the copper wire is connected with each mechanism correctly, opening a universal meter, and dialing to a resistance gear;
4) Pulling the rotary hand wheel to enable the sliding block to drive the cylinder to move towards the direction of the sample, and enabling the insulating wire to drive the two loop bars to move towards the direction of the sample under the action of the cylinder;
5) When the two loop bars fully contact the sample and the conducting plate on the sample, immediately checking the reading of the universal meter, if the resistance is zero, loosening the rotary hand wheel, and locking the ratchet wheel by the pawl in the frame at the moment, so that the sliding block and the loop bars are locked from displacement;
6) If the resistance is not zero, continuing to pull the rotary hand wheel until the resistance is zero;
7) The chucks on both sides of the sample are fully clamped, and the centered sample is fixed.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a centering device and method of tensile sample, is to regard the perpendicular face in the chuck working face as the symmetry plane symmetry setting two loop bars at sample chuck both ends, through the loop bar distance at synchronous adjustment sample both ends, can make the automatic centering of loop bar drive sample to can conveniently and rapidly realize the accurate centering of different width specification metal and non-sheet metal type tensile samples.
Drawings
FIG. 1 is a schematic view of a tensile specimen centering device according to the present invention;
FIG. 2 is a schematic view of the structure of the frame of the present invention;
in the figure: 1. a chuck; 2. an active mechanism; 3. a sample; 4. an insulating wire; 5. a driven mechanism; 6. a detection mechanism; 7. a cylinder; 8. an operation table; 9. a slide block; 10. a screw rod; 11. a screw rod bracket; 12. rotating a hand wheel; 13. a sleeve; 14. a loop bar; 15. an insulating pad; 16. a connection terminal; 17. a fixing ring; 18. a frame; 19. a pawl; 20. a ratchet wheel; 21. a multimeter; 22. a copper wire; 23. and a conductive plate.
Detailed Description
The present invention will be described in detail below with reference to the drawings of the specification, but it should be noted that the practice of the present invention is not limited to the following embodiments.
As shown in fig. 1-2, a centering device for a tensile sample comprises a driving mechanism 2, a driven mechanism 5, a detection mechanism 6, an insulated wire 4, a conducting plate 23 and an operation table 8, wherein a chuck hole is formed in the operation table 8, a chuck 1 is arranged in the chuck hole, two sets of driven mechanisms 5 are symmetrically arranged at two ends of the chuck hole of the operation table 8, the symmetrical surfaces of the two sets of driven mechanisms 5 are the middle vertical surfaces of the working surfaces of the chuck 1, sleeve rods 14 on the two sets of driven mechanisms 5 are coaxially arranged, the driving mechanism 2 is arranged on the operation table 8, the symmetrical surfaces of the driving mechanism 2 are overlapped with the symmetrical surfaces of the two sets of driven mechanisms 5, one end of the insulated wire 4 is fixedly connected with the sleeve rods 14 of the driven mechanisms 5, the other end of the insulated wire 4 passes through a cylinder 7 on the driving mechanism 2 and is fixedly connected with a frame 18, the connecting point of the insulated wire 4 and the frame 18 is arranged on the symmetrical surfaces of the driving mechanism 2, the connecting the driven mechanisms 5 and the two insulated wires 4 of the driving mechanism 2 are equal in length, and the detection mechanism 6 is respectively connected with the sleeve rods 14 of the two driven mechanisms 5 through copper wires 22; when centering the non-metal plate type sample 3, the conductive plate 23 is adhered to the surface of the sample 3 facing the driving mechanism 2, and when adhering, the transverse center line of the conductive plate 23 and the axes of the two loop bars 14 are on the same horizontal plane. The conductive plate 23 has a length equal to the width of the test piece 3 and a certain thickness and width.
The insulated wire 4 is an inelastic soft insulated wire.
The driving mechanism 2 comprises cylinders 7, sliding blocks 9, a lead screw 10, a lead screw support 11, a rotary hand wheel 12 and a frame 18, wherein the sliding blocks 9 are placed on the operation table 8, the upper ends of the sliding blocks 9 take the longitudinal center line of the sliding blocks 9 as a symmetrical axis, the two cylinders 7 are symmetrically welded, threaded holes are formed in the sliding blocks 9, the frame 18 is fixed on the operation table 8, the lead screw 10 sequentially penetrates through an inner hole of a ratchet wheel 20 in the frame 18 and a threaded hole of the sliding blocks 9, the lead screw 10 is radially fixed with the ratchet wheel 20, two ends of the lead screw 10 are arranged on the lead screw support 11, the lead screw support 11 is fixed on the operation table 8, and the rotary hand wheel 12 is installed at the operation end of the lead screw 10. The screw rod bracket 11 is connected with the screw rod 10 through a sliding bearing bush.
The axis of the cylinder 7 at the upper end of the sliding block 9 of the driving mechanism 2 and the axis of the loop bar 14 of the driven mechanism 5 are on the same horizontal plane.
The whole driving mechanism 2 is of a symmetrical structure, and the longitudinal center line of the sliding block 9, the symmetrical axis of the cylinder 7 and the center line of the screw rod 10 all fall on the symmetrical plane of the driving mechanism 2.
The frame 18 comprises a frame body, a ratchet wheel 20 and a pawl 19, wherein the bottom of the frame body is fixedly connected with the operating platform 8, and the pawl 19 and the ratchet wheel 20 which are matched with each other are arranged below the frame body. A key groove is arranged on an inner hole of the ratchet 20, and the screw rod 10 is radially fixed with the ratchet 20 through the key.
The driven mechanism 5 comprises a sleeve 13, a sleeve rod 14, an insulating pad 15, a wiring terminal 16 and a fixing ring 17, wherein the insulating pad 15 is fixed on the operating platform 8, the sleeve 13 is fixed at the upper end of the insulating pad 15, the sleeve rod 14 is arranged in the sleeve 13, the sleeve 13 is in clearance fit with the sleeve rod 14, the fixing ring 17 is fixed at one end of the sleeve rod 14 close to the clamping head 1, the fixing ring 17 is connected with the insulating wire 4, and the wiring terminal 16 is fixed at the outer end part of the sleeve rod 14.
The fixing rings 17 are welded on the side of the loop bars 14 facing the driving mechanism 2, and the positions of the welding fixing rings 17 on the two loop bars 14 are the same.
The detection mechanism 6 comprises a universal meter 21 and a copper wire 22, and the anode and the cathode of the universal meter 21 are respectively connected with the copper wire 22. The other end of the copper wire 22 is connected to the terminal 16 on the loop bar 14.
Example 1 a method for centring a sheet metal type sample 3 using a tensile sample centring device comprising the following method steps:
1) Placing the sample 3 between the two chucks 1, and tightening the chucks 1 to make the gap between the chucks 1 and the sample 3 as small as possible but not equal to zero;
2) Checking a wire connection line, ensuring that the copper wire 22 is connected with each mechanism correctly, opening the universal meter 21, and shifting to a resistance gear;
3) Pulling the rotating hand wheel 12 (when the screw thread of the screw rod 10 is a right-handed screw, the rotating hand wheel 12 is pulled anticlockwise, and when the screw thread of the screw rod 10 is a left-handed screw, the rotating hand wheel 12 is pulled clockwise), so that the sliding block 9 drives the cylinder 7 to move towards the direction of the sample 3, and at the moment, the insulating wire 4 drives the two loop bars 14 to move towards the direction of the sample 3 under the action of the cylinder 7;
when one side of the loop bar 14 contacts the sample 3, the sample 3 is pushed to the other direction, and because the two loop bars 14 are symmetrically arranged by taking the center vertical plane of the working surface of the chuck 1 as the symmetrical plane, when the two loop bars 14 fully contact the sample 3, the two ends of the sample 3 can be automatically and accurately centered.
4) When the two loop bars 14 fully contact the sample 3, immediately checking the reading of the universal meter 21, if the resistance is zero, loosening the rotary hand wheel 12, and locking the ratchet wheel 20 by the pawl 19 in the frame 18 at the moment, so that the sliding block 9 and the loop bars 14 are locked from displacement;
5) If the resistance is not zero, continuing to pull the rotary hand wheel 12 until the resistance is zero;
since the detection circuit is connected after the two loop bars 14 are sufficiently contacted with the sample 3, the resistance value of the multimeter 21 is zero at this time, and thus the resistance value can be used as a standard for observing whether the sample 3 is centered.
6) The chucks 1 on both sides of the sample 3 are sufficiently tightened to fix the centered sample 3.
In this embodiment, the diameter of the cylinder 7 is 4mm, the diameter of the insulated wire 4 is 3mm, and the axial length of the ratchet 20 sleeved on the screw 10 is 50mm. The width of sample 3 was 25mm.
Example 2, when sample 3 is of the non-sheet metal type, comprises the following method steps:
1) Placing the sample 3 between the two chucks 1, and tightening the chucks 1 to make the gap between the chucks 1 and the sample 3 as small as possible but not equal to zero;
2) The conductive plate 23 is stuck to the surface of the sample 3 on the side close to the driving mechanism 2, so that the central line of the conductive plate 23 and the axis of the loop bar 14 are ensured to be on the same horizontal plane, and the loop bar 14 is ensured to be fully contacted with the conductive plate 23 when being fully contacted with the sample 3;
3) Checking a wire connection line, ensuring that the copper wire 22 is connected with each mechanism correctly, opening the universal meter 21, and shifting to a resistance gear;
4) Pulling the rotating hand wheel 12 (when the screw thread of the screw rod 10 is a right-handed screw, the rotating hand wheel 12 is pulled anticlockwise, and when the screw thread of the screw rod 10 is a left-handed screw, the rotating hand wheel 12 is pulled clockwise), so that the sliding block 9 drives the cylinder 7 to move towards the direction of the sample 3, and at the moment, the insulating wire 4 drives the two loop bars 14 to move towards the direction of the sample 3 under the action of the cylinder 7;
5) When the two loop bars 14 fully contact the sample 3 and the conducting plate 23 on the sample 3, immediately checking the reading of the universal meter 21, if the resistance is zero, loosening the rotary hand wheel 12, and locking the ratchet wheel 20 by the pawl 19 in the frame 18 at the moment, so that the sliding block 9 and the loop bars 14 are locked from displacement;
6) If the resistance is not zero, continuing to pull the rotary hand wheel 12 until the resistance is zero;
7) The chucks 1 on both sides of the sample 3 are sufficiently tightened to fix the centered sample 3.
In this embodiment, the diameter of the cylinder 7 is 4mm, the diameter of the insulated wire 4 is 3mm, and the axial length of the ratchet 20 sleeved on the screw 10 is 50mm. The width of sample 3 was 40mm.
Claims (4)
1. A tensile specimen centering device, characterized in that: the device comprises a driving mechanism, driven mechanisms, a detection mechanism, an insulating wire, a conducting plate and an operation table, wherein a chuck hole is formed in the operation table, chucks are arranged in the chuck hole, two sets of driven mechanisms are symmetrically arranged at two ends of the chuck hole of the operation table, symmetrical planes of the two sets of driven mechanisms are perpendicular to working faces of the chucks, loop bars on the two sets of driven mechanisms are coaxially arranged, the driving mechanism is arranged on the operation table, the symmetrical planes of the driving mechanism are overlapped with the symmetrical planes of the two sets of driven mechanisms, one end of the insulating wire is fixedly connected with the loop bars of the driven mechanisms, the other end of the insulating wire penetrates through a cylinder on the driving mechanism and is fixedly connected with a frame, a connecting point of the insulating wire and the frame is arranged on the symmetrical planes of the driving mechanism, two insulating wires for connecting the driven mechanisms and the driving mechanism are equal, and the detection mechanism is respectively connected with the loop bars of the two driven mechanisms through copper wires; when the non-metal plate type sample is centered, the conducting plate is stuck on the surface of the sample, and the transverse central line of the conducting plate and the axes of the two loop bars are on the same horizontal plane;
the driving mechanism comprises cylinders, a sliding block, a screw rod bracket, a rotary hand wheel and a frame, wherein the sliding block is arranged on the operating platform, the upper end of the sliding block is symmetrically welded with the two cylinders by taking the longitudinal central line of the sliding block as a symmetrical axis, threaded holes are formed in the sliding block, the frame is fixed on the operating platform, the screw rod sequentially passes through ratchet holes and the threaded holes of the sliding block in the frame, the screw rod is radially fixed with the ratchet wheel, the two ends of the screw rod are arranged on the screw rod bracket, the screw rod bracket is fixed on the operating platform, and the rotary hand wheel is arranged at the operating end of the screw rod;
the detection mechanism comprises a universal meter and copper wires, and the anode and the cathode of the universal meter are respectively connected with the copper wires.
2. A tensile specimen centering device as claimed in claim 1, wherein: the frame comprises a frame body, a ratchet wheel and a pawl, wherein the bottom of the frame body is fixedly connected with the operating platform, and the pawl and the ratchet wheel which are matched with each other are arranged below the frame body.
3. A tensile specimen centering device as claimed in claim 1, wherein: the driven mechanism comprises a sleeve, a loop bar, an insulating pad, a wiring terminal and a fixing ring, wherein the insulating pad is fixed on the operating platform, the sleeve is fixed at the upper end of the insulating pad, the loop bar is arranged in the sleeve, the sleeve is in clearance fit with the loop bar, the fixing ring is fixed at one end, close to the clamping head, of the loop bar, the fixing ring is connected with an insulating wire, and the wiring terminal is fixed on the loop bar.
4. A method of centering a tensile specimen using a tensile specimen centering device as defined in claim 1, characterized by: when the tensile specimen is of the sheet metal type, the method comprises the following method steps:
1) Placing the sample between two chucks, and tightening the chucks to make the gap between the chucks and the sample as small as possible but not equal to zero;
2) Checking a wire connection circuit, ensuring that the copper wire is connected with each mechanism correctly, opening a universal meter, and dialing to a resistance gear;
3) Pulling the rotary hand wheel to enable the sliding block to drive the cylinder to move towards the direction of the sample, and enabling the insulating wire to drive the two loop bars to move towards the direction of the sample under the action of the cylinder;
4) When the two loop bars fully contact the sample, immediately checking the reading of the universal meter, if the resistance is zero, loosening the rotary hand wheel, and locking the ratchet wheel by the pawl in the frame at the moment, so that the sliding block and the loop bars are locked from displacement;
5) If the resistance is not zero, continuing to pull the rotary hand wheel until the resistance is zero;
6) Clamping chucks on two sides of the sample are fully clamped, and the centered sample is fixed;
when the tensile specimen is of the non-sheet metal type, the method comprises the following method steps:
1) Placing the sample between two chucks, and tightening the chucks to make the gap between the chucks and the sample as small as possible but not equal to zero;
2) The conductive plate is stuck to the sample, so that the central line of the conductive plate and the axis of the loop bar are ensured to be positioned on the same horizontal plane, and the loop bar is contacted with the conductive plate when contacting the sample;
3) Checking a wire connection circuit, ensuring that the copper wire is connected with each mechanism correctly, opening a universal meter, and dialing to a resistance gear;
4) Pulling the rotary hand wheel to enable the sliding block to drive the cylinder to move towards the direction of the sample, and enabling the insulating wire to drive the two loop bars to move towards the direction of the sample under the action of the cylinder;
5) When the two loop bars fully contact the sample and the conducting plate on the sample, immediately checking the reading of the universal meter, if the resistance is zero, loosening the rotary hand wheel, and locking the ratchet wheel by the pawl in the frame at the moment, so that the sliding block and the loop bars are locked from displacement;
6) If the resistance is not zero, continuing to pull the rotary hand wheel until the resistance is zero;
7) The chucks on both sides of the sample are fully clamped, and the centered sample is fixed.
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| CN201510278073.1A CN106289949B (en) | 2015-05-27 | 2015-05-27 | Centering device and method for tensile sample |
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| CN201510278073.1A CN106289949B (en) | 2015-05-27 | 2015-05-27 | Centering device and method for tensile sample |
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| CN106289949B true CN106289949B (en) | 2023-06-20 |
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| CN108955660B (en) * | 2018-04-18 | 2020-12-15 | 深圳市路桥建设集团有限公司 | Deviation detection method |
| CN111579360B (en) * | 2020-05-21 | 2023-06-30 | 钢研纳克检测技术股份有限公司 | High-flux small sample pulling, pressing and bending test system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5693890A (en) * | 1996-08-07 | 1997-12-02 | Holmes; John W. | Modular alignment device for tensile load frame |
| CN201130125Y (en) * | 2007-12-21 | 2008-10-08 | 宝山钢铁股份有限公司 | Floating type centering device capable of rotationally adjusting |
| CN202429614U (en) * | 2012-01-18 | 2012-09-12 | 铜陵天奇蓝天机械设备有限公司 | Roller conveyor with function of centering control |
| CN203443848U (en) * | 2013-08-21 | 2014-02-19 | 上海宝钢工业技术服务有限公司 | Automatic sample width alignment mechanism of full-automatic tensile testing machine |
| CN104297053A (en) * | 2014-10-13 | 2015-01-21 | 南京航空航天大学 | Centering device and method used for sheet-shaped material tensile test |
| CN204694539U (en) * | 2015-05-27 | 2015-10-07 | 鞍钢股份有限公司 | A kind of centralising device of tensile sample |
-
2015
- 2015-05-27 CN CN201510278073.1A patent/CN106289949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5693890A (en) * | 1996-08-07 | 1997-12-02 | Holmes; John W. | Modular alignment device for tensile load frame |
| CN201130125Y (en) * | 2007-12-21 | 2008-10-08 | 宝山钢铁股份有限公司 | Floating type centering device capable of rotationally adjusting |
| CN202429614U (en) * | 2012-01-18 | 2012-09-12 | 铜陵天奇蓝天机械设备有限公司 | Roller conveyor with function of centering control |
| CN203443848U (en) * | 2013-08-21 | 2014-02-19 | 上海宝钢工业技术服务有限公司 | Automatic sample width alignment mechanism of full-automatic tensile testing machine |
| CN104297053A (en) * | 2014-10-13 | 2015-01-21 | 南京航空航天大学 | Centering device and method used for sheet-shaped material tensile test |
| CN204694539U (en) * | 2015-05-27 | 2015-10-07 | 鞍钢股份有限公司 | A kind of centralising device of tensile sample |
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