CN218726063U - Biaxial stretching mechanical property test device - Google Patents
Biaxial stretching mechanical property test device Download PDFInfo
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- CN218726063U CN218726063U CN202222689276.8U CN202222689276U CN218726063U CN 218726063 U CN218726063 U CN 218726063U CN 202222689276 U CN202222689276 U CN 202222689276U CN 218726063 U CN218726063 U CN 218726063U
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Abstract
The utility model belongs to the field of tensile test devices, and relates to a biaxial tensile mechanical property test device, which comprises an outer frame, wherein an upper shaft, a lower shaft, a left shaft and a right shaft are respectively arranged in the upper direction, the lower direction, the left direction and the right direction of the outer frame, and the upper shaft, the lower shaft, the left shaft and the right shaft are respectively connected and fixed with an upper connecting plate, a lower connecting plate, a left connecting plate and a right connecting plate which are arranged in an inner ring of the outer frame after penetrating through the outer frame; the upper connecting plate, the lower connecting plate, the left connecting plate and the right connecting plate are respectively connected with one end of a clamping plate fixing rod, force sensors are respectively arranged between the clamping plate fixing rod and the upper connecting plate, between the clamping plate fixing rod and the lower connecting plate, between the clamping plate fixing rod and the left connecting plate and between the clamping plate fixing rod and the right connecting plate, and the other end of the clamping plate fixing rod is connected with a clamping plate unit; the upper connecting plate, the left connecting plate, the lower connecting plate and the right connecting plate are connected end to end through a connecting rod mechanism respectively. The utility model discloses a supplementary device of universal tester matches the testing machine of various models, has solved ordinary universal tester and has realized the coexistence problem to test sample unipolar stretching and biax stretching.
Description
Technical Field
The utility model relates to a biaxial stretching mechanical property test device belongs to the tensile test device field.
Background
The existing biaxial tensile mechanical property test device usually exists as a device independent of a universal testing machine, a tensile unit and a driving mechanism are arranged in rows, and the matching uniformity is set through electric control, for example, the biaxial tensile mechanical property test device disclosed in patent CN206208651U and the like can not be matched with the existing conventional universal testing machine for use, the universal testing machine can not be effectively utilized, and the cost of test equipment is high; in addition, the existing biaxial tensile mechanical property test device has a complex structure, and the electrical control has the phenomena of complex mechanism, difficult operation, large problem occurrence probability, high manufacturing cost, difficult maintenance, poor universality and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the device for testing the biaxial tensile mechanical property can be suitable for being applied to testing machines of different models, can realize uniaxial tensile and biaxial tensile tests, has strong universality and reduces the cost of testing equipment; and the structure is simple, and the overhaul is convenient.
The utility model discloses a biaxial tensile mechanical property test device, including outer frame, outer frame upper shaft, lower shaft, left axle and right axle are equipped with respectively about four directions about, upper shaft, lower shaft, left axle and right axle are fixed with upper junction plate, lower junction plate, left junction plate and the right junction plate that set up in outer frame inner circle after running through outer frame respectively; the upper connecting plate, the lower connecting plate, the left connecting plate and the right connecting plate are respectively connected with one end of a clamping plate fixing rod, force sensors are respectively arranged between the clamping plate fixing rod and the upper connecting plate, between the clamping plate fixing rod and the lower connecting plate, between the clamping plate fixing rod and the left connecting plate and between the clamping plate fixing rod and the right connecting plate, and the other end of the clamping plate fixing rod is connected with a clamping plate unit; the upper connecting plate, the left connecting plate, the lower connecting plate and the right connecting plate are connected end to end through a connecting rod mechanism respectively; the outer frame is provided with a frame clamp.
When the device is used, the device is fixed on stand columns at two sides of a universal testing machine through a frame clamp, an upper shaft and a lower shaft are respectively connected and fixed with an upper jaw and a lower jaw of the universal testing machine, if biaxial stretching is needed, four end parts of a tensile test sample are respectively arranged on a clamping plate unit connected with an upper connecting plate, a left connecting plate, a lower connecting plate and a right connecting plate, the upper shaft is pulled upwards at the moment, the upper shaft moves upwards to drive the upper connecting plate to move upwards, the upper connecting plate moves upwards to push the left connecting plate and the right connecting plate to move leftwards and rightwards respectively through two connecting rod mechanisms connected with the upper connecting plate, the left connecting plate and the right connecting plate move leftwards respectively to push the lower connecting plate to move downwards through connecting rod mechanisms connected with the left connecting plate and the right connecting plate, the upper connecting plate, the left connecting plate, the lower connecting plate and the right connecting plate move towards corresponding directions respectively to drive corresponding clamping plate units to strain the tensile test sample, and a force sensor can obtain the stress condition of the sample in real time and transmit the stress condition to the corresponding units; if only uniaxial stretching is needed, the two ends of the test sample can be respectively fixed with the clamping plate units corresponding to the upper shaft and the lower shaft according to actual conditions, or the clamping plate units connected with the left shaft and the right shaft can be selected for fixing. The upper shaft is coaxial with the lower shaft, and the left shaft is coaxial with the right shaft; any one of the upper, lower, left and right axes of operation may control the stretching of the test specimen.
Preferably, the force sensor is a spoke sensor, the spoke sensor is fixedly connected with the upper connecting plate, the lower connecting plate, the left connecting plate or the right connecting plate through bolts, and one end of the clamping plate fixing rod is fixedly connected with the inner ring wall of the spoke sensor through threads. The spoke sensor is electrically connected with the signal collecting unit, so that the signal of the real-time force can be transmitted to the signal collecting unit, and a tester obtains a test result.
Preferably, the link mechanism comprises a bending rotary connecting rod, the bending part of the rotary connecting rod is connected with the connecting support through a rotating shaft, the connecting support is fixed with the outer frame, the end parts of two supporting legs of the rotary connecting rod are respectively hinged with one end of one pushing connecting rod, and the other ends of the two pushing connecting rods are respectively hinged with the upper connecting plate, the lower connecting plate, the left connecting plate or the right connecting plate in the corresponding positions. The number of the connecting rod mechanisms is 4, two ends of the upper connecting plate are connected with the left connecting plate and the right connecting plate through one connecting rod mechanism respectively, and two ends of the lower connecting plate are connected with the left connecting plate and the right connecting plate through one connecting rod mechanism respectively; in the specific working process, the rotating connecting rods freely rotate around the rotating shaft, when the upper shaft moves upwards, the upper connecting plate is driven to move upwards, the upper connecting plate moves upwards to drive the pushing connecting rods of the two connecting rod mechanisms connected with the upper connecting plate to move, the two pushing connecting rods connected with the upper connecting plate move to drive the corresponding rotating connecting rods to rotate, the rotating connecting rods drive the pushing connecting rods connected with the left connecting plate and the right connecting plate to move leftwards and rightwards respectively, the left connecting plate and the right connecting plate move leftwards and rightwards respectively to drive the other pushing connecting rod connected with the bottom ends of the left connecting plate and the right connecting plate to move, the pushing connecting rods drive the corresponding rotating connecting rods to rotate, the rotating connecting rods drive the pushing connecting rods connected with the lower connecting plate to push the lower connecting plate downwards, and the lower connecting plate moves downwards, so that the upper connecting plate, the left connecting plate, the lower connecting plate and the right connecting plate can stretch the test sample finally. The length of the rotating connecting rods of the 4 connecting rod mechanisms is matched with the length of the two pushing connecting rods, so that the up-down moving distance of the upper connecting plate and the down-connecting plate is the same, and the left-right moving distance of the left connecting plate and the right connecting plate is the same. For example, when the rotating connecting rod is bent by 90 degrees, and the lengths of two pushing connecting rods connected with the rotating connecting rod are the same, a straight line between a hinge point of the pushing connecting rod and the upper connecting plate and a rotating shaft of the rotating connecting rod is vertical to a straight line between a hinge point of the other pushing connecting rod and the left connecting plate and a rotating shaft of the rotating connecting rod, other connecting rod mechanisms are bilaterally and vertically symmetrical to the connecting rod mechanisms, and the stretching distances of the upper connecting plate, the lower connecting plate, the left connecting plate or the right connecting plate are the same. The length of two promotion link levers of 1 link mechanism can select different length, and 4 above-mentioned link mechanisms cooperate, can realize not equidirectional dynamics size experiment.
Preferably, the number of the frame clamps is more than 2, and the frame clamps with more than 2 are respectively arranged on two sides of the outer frame. The device is convenient to be stably and reliably installed with a universal testing machine.
Preferably, the frame fixture comprises two fixture plates, one ends of the two fixture plates are fixed to the outer frame respectively, the other ends of the two fixture plates are connected through locking bolts in a locking mode, and a clamping distance is arranged between the two fixture plates. The two clamp plates are oppositely provided with arc-shaped grooves, so that the two clamp plates can be conveniently and fully attached to the universal testing machine stand column, and the two clamp plates and the universal testing machine stand column are fixed by screwing the locking bolts.
Preferably, one end of the clamp plate fixed with the outer frame is provided with a long hole, and the clamp plate is fixed with the outer frame through a fixing bolt and the long hole. The distance between the upright columns and the upper and lower jaws of the universal testing machines of different models is different, and the length of the clamp plate extending out of the outer frame can be adjusted by adjusting the position of the elongated hole, so that the device is suitable for different universal testing machines.
Preferably, the clamping plate unit comprises a fixed plate and a movable plate, the fixed plate is fixedly connected with the clamping plate fixing rod, and the movable plate is fixedly connected with the fixed plate through a butterfly nut and a bolt. The end part of the test sample is inserted between the fixed plate and the movable plate, and then the bolt and the butterfly nut are screwed to gradually shorten the distance between the fixed plate and the movable plate until the test sample is clamped tightly.
Preferably, linear bearings are respectively arranged between the upper shaft, the lower shaft, the left shaft and the right shaft and the outer frame, so that the upper shaft, the lower shaft, the left shaft and the right shaft can normally and respectively move up and down, left and right.
Preferably, the bottom surface of the outer frame is additionally provided with a lower cushion plate, the lower shaft penetrates through the lower cushion plate, the lower cushion plate plays a role in supporting and protecting the outer frame, and the lower cushion plate is placed at a corresponding position of the universal testing machine during use.
The device can be applied to the plane strain approximate state test, when in use, the connection between the connecting rod mechanism and the left connecting plate and the connection between the connecting rod mechanism and the right connecting plate are disconnected, the left connecting plate and the right connecting plate are provided with threaded holes, the positioning bolt penetrates through the outer frame to be connected with the threaded holes in the left connecting plate and the right connecting plate, so that the left connecting plate and the right connecting plate are fixed in position, two ends of the cross sample plate are clamped by the clamping plate units on the left connecting plate and the right connecting plate respectively, the upper end and the lower end of the cross sample plate are clamped by the clamping plate units of the upper connecting plate and the lower connecting plate respectively, and the testing machine controls the upper shaft and the lower shaft to be stretched respectively, so that the plane strain approximate state test of the sample plate is realized.
Compared with the prior art, the utility model beneficial effect who has is:
the utility model discloses simple structure, reasonable in design, this device is the supplementary device of universal tester, matches the testing machine of various models, has solved ordinary universal tester and has realized the coexistence problem to test sample unipolar stretching and biax stretching, also can realize not equidirectional dynamics size test, make full use of current universal tester, the commonality is strong, has reduced test equipment cost; and can also be used for the plane strain approximate state test of the sample plate; and the structure is simple, and the overhaul is convenient.
Drawings
FIG. 1 is a schematic structural view (perspective view) of a biaxial tensile mechanical property test apparatus;
FIG. 2 is a biaxial tensile mechanical property test apparatus (with a portion of the connecting bracket removed);
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is a drawing diagram of the biaxial stretching mechanical property test device in a stretched state.
In the figure: 1. an outer frame; 2. connecting a bracket; 3. an upper shaft; 4. a force sensor; 5. a splint fixing rod; 6. a clamp plate unit; 7. a right connecting plate; 8. a right shaft; 9. a link mechanism; 10. a lower shaft; 11. a lower base plate; 12. a lower connecting plate; 13. a left connecting plate; 14. a left shaft; 15. a strip hole; 16. a clamp plate; 17. locking the bolt; 18. an arc-shaped groove; 19. a movable plate; 20. a butterfly nut; 21. rotating the connecting rod; 22. pushing the connecting rod; 23. a rotating shaft; 24. an upper connecting plate; 25. a frame jig; 26. a fixing plate; 27. fixing the bolt; 28. a linear bearing; 29. and (6) positioning the bolt.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1-4, the biaxial tension mechanical property testing device of the present invention comprises an outer frame 1, wherein an upper shaft 3, a lower shaft 10, a left shaft 14 and a right shaft 8 are respectively arranged in four directions, i.e. up, down, left and right directions, of the outer frame 1, and the upper shaft 3, the lower shaft 10, the left shaft 14 and the right shaft 8 are respectively connected and fixed with an upper connecting plate 24, a lower connecting plate 12, a left connecting plate 13 and a right connecting plate 7 which are arranged in an inner ring of the outer frame 1 after penetrating through the outer frame 1; one end of a splint fixing rod 5 is respectively connected to the upper connecting plate 24, the lower connecting plate 12, the left connecting plate 13 and the right connecting plate 7, a force sensor 4 is respectively arranged between the splint fixing rod 5 and the upper connecting plate 24, the lower connecting plate 12, the left connecting plate 13 and the right connecting plate 7, and the other end of the splint fixing rod 5 is connected with a splint unit 6; the upper connecting plate 24, the left connecting plate 13, the lower connecting plate 12 and the right connecting plate 7 are connected end to end through a connecting rod mechanism 9 respectively; the outer frame 1 is provided with a frame jig 25.
In this embodiment:
the force sensor 4 is a spoke sensor, the spoke sensor is fixedly connected with an upper connecting plate 24, a lower connecting plate 12, a left connecting plate 13 or a right connecting plate 7 through bolts, and one end of a clamping plate fixing rod 5 is fixedly connected with the inner ring wall of the spoke sensor through threads. The spoke sensor is electrically connected with the signal collecting unit, so that the signal of the real-time force can be transmitted to the signal collecting unit, and a tester obtains a test result.
The link mechanism 9 includes a bent rotary link 21, the bent part of the rotary link 21 is connected with the connecting bracket 2 through a rotating shaft 23, the connecting bracket 2 is fixed with the outer frame 1, the end parts of two legs of the rotary link 21 are respectively hinged with one end of a push link 22, and the other ends of the two push links 22 are respectively hinged with the upper connecting plate 24, the lower connecting plate 12, the left connecting plate 13 or the right connecting plate 7 at corresponding positions. The number of the connecting rod mechanisms 9 is 4, two ends of the upper connecting plate 24 are respectively connected with the left connecting plate 13 and the right connecting plate 7 through one connecting rod mechanism 9, and two ends of the lower connecting plate 12 are respectively connected with the left connecting plate 13 and the right connecting plate 7 through one connecting rod mechanism 9; in the specific working process, the rotating connecting rod 21 freely rotates around the rotating shaft 23, when the upper shaft 3 moves upwards, the upper connecting plate 24 is driven to move upwards, the upper connecting plate 24 moves upwards to drive the pushing connecting rods 22 of the two connecting rod mechanisms 9 connected with the upper connecting plate 24 to move, the two pushing connecting rods 22 connected with the upper connecting plate 24 move to drive the corresponding rotating connecting rods 21 to rotate, the rotating connecting rod 21 rotates to drive the pushing connecting rods 22 connected with the left connecting plate 13 and the right connecting plate 7 to move leftwards and rightwards respectively, the left connecting plate 13 and the right connecting plate 7 move leftwards and rightwards respectively to drive the other pushing connecting rod 22 connected with the bottom ends of the left connecting plate and the right connecting plate to move, the pushing connecting rods 22 drive the corresponding rotating connecting rods 21 to rotate, the rotating connecting rod 21 rotates to drive the pushing connecting rod 22 connected with the lower connecting plate 12 to push the lower connecting plate 12 downwards, and the lower connecting plate 12 moves downwards, so that the test samples are finally stretched by the upper connecting plate 24, the left connecting plate 13, the lower connecting plate 12 and the right connecting plate 7.
The length of the rotating connecting rod 21 and the length of the two pushing connecting rods 22 of the 4 link mechanisms 9 are matched with each other, so that the up-down moving distance of the upper connecting plate 24 and the down-connecting plate 12 are the same, and the left-right moving distance of the left connecting plate 13 and the right connecting plate 7 is the same. For example, when the rotation link 21 is bent at 90 °, and the lengths of two push links 22 connected to the rotation link 21 are the same, the straight line between the hinge point of the push link 22 and the upper connection plate 24 and the rotation axis 23 of the rotation link 21 is perpendicular to the straight line between the hinge point of the other push link 22 and the left connection plate 13 and the rotation axis 23 of the rotation link 21, and the other link mechanisms 9 are bilaterally symmetric and vertically symmetric to the link mechanism 9, at this time, the stretching distances of the upper connection plate 24, the lower connection plate 12, the left connection plate 13, or the right connection plate 7 are the same. Two ends of the rotating shaft 23 are respectively connected with one connecting support 2, two ends of the upper connecting plate 24, the lower connecting plate 12, the left connecting plate 13 or the right connecting plate 7 are respectively positioned between the two connecting supports 2, and the two connecting supports 2 play a role in limiting and guiding the movement of the upper connecting plate 24, the lower connecting plate 12, the left connecting plate 13 or the right connecting plate 7 to a certain extent, so that the tensile test result of the sample is more accurate.
The number of the frame clamps 25 is 2 or more, and 2 or more frame clamps 25 are separately provided on both sides of the outer frame 1. The device and the universal testing machine can be conveniently and stably installed.
The frame clamp 25 comprises two clamp plates 16, one ends of the two clamp plates 16 are respectively fixed with the outer frame 1, the other ends of the two clamp plates 16 are connected in a locking mode through locking bolts 17, and a clamping distance is arranged between the two clamp plates 16. The opposite surfaces of the two clamp plates 16 are provided with arc-shaped grooves 18, so that the two clamp plates are conveniently and fully attached to the universal testing machine stand column, and the two clamp plates 16 and the universal testing machine stand column are fixed by screwing the locking bolts 17.
One end of the clamp plate 16 fixed to the outer frame 1 is provided with a long hole 15, and the clamp plate 16 is fixed to the outer frame 1 via the fixing bolt 27 and the long hole 15. The distance between the upright columns and the upper and lower jaws of the universal testing machines of different models is different, and the length of the clamp plate 16 extending out of the outer frame 1 can be adjusted by adjusting the position of the elongated hole 15, so that the device is suitable for different universal testing machines.
The clamping plate unit 6 comprises a fixed plate 26 and a movable plate 19, the fixed plate 26 is fixedly connected with the clamping plate fixing rod 5, and the movable plate 19 is fixedly connected with the fixed plate 26 through a butterfly nut 20 and a bolt. The end of the test specimen is inserted between the fixed plate 26 and the movable plate 19, and then the bolt and the wing nut 20 are screwed to gradually shorten the distance between the fixed plate 26 and the movable plate 19 until the test specimen is clamped.
Linear bearings 28 are respectively arranged between the upper shaft 3, the lower shaft 10, the left shaft 14, the right shaft 8 and the outer frame 1, so that the upper shaft 3, the lower shaft 10, the left shaft 14 and the right shaft 8 can normally and respectively move up and down, left and right.
The bottom surface of the outer frame 1 is additionally provided with a lower cushion plate 11, the lower shaft 10 penetrates through the lower cushion plate 11, the lower cushion plate 11 plays a role in supporting and protecting the outer frame 1, and the lower cushion plate 11 is placed at a corresponding position of the universal testing machine during use.
When the device is used, the device is fixed on upright posts at two sides of a universal testing machine through a frame clamp 25, an upper shaft 3 and a lower shaft 10 are respectively connected and fixed with an upper jaw and a lower jaw of the universal testing machine, if biaxial stretching is needed, four end parts of a tensile test sample are respectively arranged on a clamping plate unit 6 connected with an upper connecting plate 24, a left connecting plate 13, a lower connecting plate 12 and a right connecting plate 7, the upper shaft 3 is pulled upwards at the moment, the upper shaft 3 moves upwards to drive the upper connecting plate 24 to move upwards, the upper connecting plate 24 moves upwards to push the left connecting plate 13 and the right connecting plate 7 to move leftwards and rightwards respectively through two link mechanisms 9 connected with the upper connecting plate, the left connecting plate 13 and the right connecting plate 7 move leftwards and push the lower connecting plate 12 to move downwards through the link mechanisms 9 connected with the upper connecting plate 24, the left connecting plate 13, the lower connecting plate 12 and the right connecting plate 7 respectively move towards corresponding directions to drive the corresponding clamping plate unit 6 to strain the tensile test sample, and a force sensor 4 can obtain the stress condition of the sample in real time and transmit the stress condition to the corresponding unit; if only uniaxial stretching is needed, the two ends of the test sample can be respectively fixed with the clamping plate units 6 corresponding to the upper shaft 3 and the lower shaft 10, or the clamping plate units 6 connected with the left shaft 14 and the right shaft 8 can be selected to be fixed according to actual conditions. The upper shaft 3 is coaxial with the lower shaft 10, and the left shaft 14 is coaxial with the right shaft 8; any one of the upper shaft 3, lower shaft 10, left shaft 14 and right shaft 8 may be operated to control the tension on the test specimen.
The device can be applied to the plane strain approximate state test, when in use, the connection between the connecting rod mechanism 9 and the left connecting plate 13 and the right connecting plate 7 is disconnected, the left connecting plate 13 and the right connecting plate 7 are provided with threaded holes, the positioning bolts penetrate through the outer frame 1 to be connected with the threaded holes on the left connecting plate 13 and the right connecting plate 7, so that the left connecting plate 13 and the right connecting plate 7 are fixed in position, two ends of the cross template are respectively clamped by the clamping plate units 6 on the left connecting plate 13 and the right connecting plate 7, the upper end and the lower end of the cross template are respectively clamped by the clamping plate units 6 of the upper connecting plate 24 and the lower connecting plate 12, and the testing machine simultaneously controls the upper shaft 3 and the lower shaft 10 to respectively stretch, so that the plane strain approximate state test of the template is realized.
Claims (9)
1. The utility model provides a biaxial stretching mechanical properties test device which characterized in that: the outer frame comprises an outer frame (1), wherein an upper shaft (3), a lower shaft (10), a left shaft (14) and a right shaft (8) are respectively arranged in the upper direction, the lower direction, the left direction and the right direction of the outer frame (1), and the upper shaft (3), the lower shaft (10), the left shaft (14) and the right shaft (8) respectively penetrate through the outer frame (1) and then are fixedly connected with an upper connecting plate (24), a lower connecting plate (12), a left connecting plate (13) and a right connecting plate (7) which are arranged in an inner ring of the outer frame (1); one end of a splint fixing rod (5) is connected to the upper connecting plate (24), the lower connecting plate (12), the left connecting plate (13) and the right connecting plate (7) respectively, a force sensor (4) is arranged between the splint fixing rod (5) and the upper connecting plate (24), the lower connecting plate (12), the left connecting plate (13) and the right connecting plate (7) respectively, and the other end of the splint fixing rod (5) is connected with a splint unit (6); the upper connecting plate (24), the left connecting plate (13), the lower connecting plate (12) and the right connecting plate (7) are connected end to end through a connecting rod mechanism (9) respectively; the outer frame (1) is provided with a frame clamp (25).
2. The biaxial stretching mechanical property test device of claim 1, characterized in that: the force sensor (4) is a spoke sensor, the spoke sensor is fixedly connected with an upper connecting plate (24), a lower connecting plate (12), a left connecting plate (13) or a right connecting plate (7) through bolts, and one end of a clamping plate fixing rod (5) is fixedly connected with the inner ring wall of the spoke sensor through threads.
3. The biaxial stretching mechanical property test device according to claim 1, characterized in that: the connecting rod mechanism (9) comprises bent rotating connecting rods (21), the bent parts of the rotating connecting rods (21) are connected with the connecting support (2) through rotating shafts (23), the connecting support (2) is fixed with the outer frame (1), the end parts of two support legs of the rotating connecting rods (21) are respectively hinged with one end of one pushing connecting rod (22), and the other ends of the two pushing connecting rods (22) are respectively hinged with an upper connecting plate (24), a lower connecting plate (12), a left connecting plate (13) or a right connecting plate (7) in corresponding positions.
4. The biaxial stretching mechanical property test device according to claim 1, characterized in that: the number of the frame clamps (25) is more than 2, and the frame clamps (25) with more than 2 are respectively arranged at two sides of the outer frame (1).
5. The biaxial stretching mechanical property test device according to claim 1 or 4, characterized in that: the frame clamp (25) comprises two clamp plates (16), one ends of the two clamp plates (16) are fixed with the outer frame (1) respectively, the other ends of the two clamp plates (16) are connected in a locking mode through locking bolts (17), and a clamping distance is arranged between the two clamp plates (16).
6. The biaxial stretching mechanical property test device according to claim 5, characterized in that: one end of a clamp plate (16) fixed with the outer frame (1) is provided with a strip hole (15), and the clamp plate (16) is fixed with the outer frame (1) through a fixing bolt (27) and the strip hole (15).
7. The biaxial stretching mechanical property test device according to claim 1, characterized in that: the clamping plate unit (6) comprises a fixed plate (26) and a movable plate (19), the fixed plate (26) is fixedly connected with the clamping plate fixing rod (5), and the movable plate (19) is fixedly connected with the fixed plate (26) through a butterfly nut (20) and a bolt.
8. The biaxial stretching mechanical property test device according to claim 1, characterized in that: linear bearings (28) are respectively arranged between the upper shaft (3), the lower shaft (10), the left shaft (14), the right shaft (8) and the outer frame (1).
9. The biaxial stretching mechanical property test device according to claim 1, characterized in that: a lower backing plate (11) is additionally arranged on the bottom surface of the outer frame (1), and a lower shaft (10) penetrates through the lower backing plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222689276.8U CN218726063U (en) | 2022-10-12 | 2022-10-12 | Biaxial stretching mechanical property test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222689276.8U CN218726063U (en) | 2022-10-12 | 2022-10-12 | Biaxial stretching mechanical property test device |
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| Publication Number | Publication Date |
|---|---|
| CN218726063U true CN218726063U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222689276.8U Active CN218726063U (en) | 2022-10-12 | 2022-10-12 | Biaxial stretching mechanical property test device |
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| Country | Link |
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| CN (1) | CN218726063U (en) |
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2022
- 2022-10-12 CN CN202222689276.8U patent/CN218726063U/en active Active
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