CN111238936A - Testing device for metal material mechanical tensile test - Google Patents
Testing device for metal material mechanical tensile test Download PDFInfo
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- CN111238936A CN111238936A CN202010124657.4A CN202010124657A CN111238936A CN 111238936 A CN111238936 A CN 111238936A CN 202010124657 A CN202010124657 A CN 202010124657A CN 111238936 A CN111238936 A CN 111238936A
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 239000007769 metal material Substances 0.000 title claims abstract description 28
- 238000009864 tensile test Methods 0.000 title claims abstract description 27
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A testing device for a metal material mechanical tensile test comprises a supporting rod, a first connecting rod, a pressure sensor, a third mounting plate, a second connecting rod and two groups of clamping components for clamping a standard tensile sample; two ends of the plurality of support rods are respectively connected with the top plate and the workbench; the top plate is provided with a lifting device for driving the first mounting plate to move towards or away from the workbench; the plurality of first connecting rods are respectively connected with the first mounting plate and the third mounting plate; the second mounting plate is positioned between the first mounting plate and the third mounting plate, and a space for mounting the pressure sensor is reserved between the second mounting plate and the third mounting plate; the plurality of second connecting rods are respectively connected with the second mounting plate and the fourth mounting plate; the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate are parallel to each other; the two groups of clamping assemblies are respectively connected with the workbench and the fourth mounting plate; the sample is perpendicular to the table. The invention can conveniently clamp and tightly fix the test sample to be tested.
Description
Technical Field
The invention relates to the technical field of material performance testing, in particular to a testing device for a mechanical tensile test of a metal material.
Background
The mechanical experiment is an essential item in the physical course experiment, students can understand physical knowledge visually and clearly through the experiment, the tension test of the material is a branch in the mechanical experiment, the students can clearly understand the tensile strength of the material through the tension test experiment, and the correlation of elasticity and extension length is researched to obtain an accurate elasticity coefficient; when a metal material is subjected to a tensile test sample, the metal material needs to be processed into a standard test sample according to a standard, as shown in fig. 1, but the conventional test device for the metal material tensile test sample is inconvenient to clamp and fix the standard test sample, and after the test sample is clamped and fixed, the test sample is easily extruded and deformed, so that the test accuracy may be influenced; therefore, the application provides a testing device for a metal material mechanical tensile test.
Disclosure of Invention
Objects of the invention
The testing device provided by the invention can conveniently clamp and tightly fix a sample and cannot cause extrusion deformation to the sample.
(II) technical scheme
The invention provides a testing device for a metal material mechanical tensile test, which comprises a workbench, supporting rods, a top plate, a first mounting plate, a first connecting rod, a second mounting plate, a pressure sensor, a third mounting plate, a second connecting rod, a fourth mounting plate and two groups of clamping components for clamping a standard tensile sample; the group of clamping components comprises a first fixing plate, a clamping piece, a threaded rod and a second fixing plate;
two ends of the plurality of support rods are respectively connected with the top plate and the workbench; a plurality of support columns are arranged on the lower end surface of the workbench; the top plate is provided with a lifting device for driving the first mounting plate to move towards or away from the workbench;
one end of each of the first connecting rods is connected with the lower end face of the first mounting plate, and the plurality of first connecting rods are connected with the third mounting plate; a plurality of first through holes are formed in the third mounting plate; the second mounting plate is positioned between the first mounting plate and the third mounting plate, and a space for mounting the pressure sensor is reserved between the second mounting plate and the third mounting plate; one ends of the second connecting rods are respectively connected with the second mounting plates, and the other ends of the second connecting rods respectively penetrate through the first through holes one by one and are connected with the fourth mounting plates; the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate are parallel to each other;
the clamping piece is arranged on the first fixing plate, and a first hollow bin is arranged at one end of the clamping piece and extends inwards along the central axis of the clamping piece; the diameter value of the first hollow bin is larger than the width value of the parallel end of the sample; the other end of the clamping piece extends along the central axis thereof and is internally provided with a second hollow bin; the inner wall of the second hollow bin is a curved surface, the second hollow bin is communicated with the first hollow bin, the diameter value of the second hollow bin is gradually reduced along the direction towards the first hollow bin, and the second hollow bin and the first hollow bin are provided with gaps for the parallel sections of the test sample to pass through on the clamping piece;
the first fixing plate is vertically arranged on the second fixing plate; the threaded rod is rotatably connected with the second fixing plate; and one threaded rod arranged at the upper end of the sample is in threaded connection with the fourth mounting plate, and the other group of threaded rods arranged at the lower end of the sample is in threaded connection with the workbench.
Preferably, the two sets of clamping assemblies further comprise two nuts; two nuts are respectively in threaded connection with two threaded rods, and the end faces of the two nuts, facing the workbench and the fourth mounting plate, respectively compress the workbench and the fourth mounting plate.
Preferably, a plurality of bolts are included; wherein, a plurality of threaded holes are arranged on the first fixing plate; the outer peripheral surface of the clamping piece is provided with a plurality of threaded blind holes;
the bolts respectively penetrate through the threaded holes in a threaded manner and are screwed into the threaded blind holes in a threaded manner; wherein, the bolt, the threaded hole and the threaded blind hole correspond one to one.
Preferably, the clamping piece is of a cylindrical structure; the projection of the first fixing plate is a fan ring, and the inner diameter value of the first fixing plate is the same as the outer diameter value of the clamping piece.
Preferably, a baffle is included; the baffle is vertically arranged on the workbench, and the baffle is provided with scale marks along the height direction.
Preferably, two groups of protection plates and inserting components are included; wherein, the lower end surface of the top plate is provided with a sliding chute along the length direction thereof; the upper end surface of the workbench is provided with a groove along the length direction;
two sets of guard plates are all perpendicular with the workstation, and the upper end sliding connection spout of two sets of guard plates, the lower extreme of two sets of guard plates all stretch into the recess in, and two sets of guard plates are through inserting subassembly fixed connection.
Preferably, the protection plate is made of an impact-resistant transparent material.
Preferably, the inserting assembly is a stainless steel bolt.
Preferably, a plurality of guide rods are included; the first mounting plate is provided with a plurality of vertical second through holes;
a plurality of guide bars and workstation vertical distribution, the workstation is connected respectively to the one end of a plurality of guide bars, and the other end of a plurality of guide bars passes a plurality of second through-holes respectively one by one and connects the roof.
Preferably, the device comprises a host and a switch; the switch and the host are both arranged on the workbench, a display screen is arranged on the host, and a circuit board and a microcontroller are arranged in the host; the microcontroller is arranged on the circuit board, controls and is connected with the lifting device, and is in communication connection with the display screen and the pressure sensor; the switch is electrically connected with the circuit board.
The technical scheme of the invention has the following beneficial technical effects:
when the clamping device is used, the proper clamping assembly is selected according to the size of a sample to clamp the sample, and the clamping assembly is conveniently installed with the fourth installation plate and the workbench through the arranged threaded rod, so that the clamping assembly is conveniently replaced; adjusting the distance between the two groups of clamping components, extending the parallel section of the sample into a first hollow bin and a second hollow bin which are communicated with each other from a gap on the two clamping components, increasing the distance between the two groups of clamping components through a lifting device, continuously moving the first mounting plate towards one side far away from the workbench, and pressing the end surface of the sample with the transition radius with the inner wall of the second hollow bin, namely clamping and fixing the sample through the clamping components; at the moment, the pressure sensor is tightly pressed between the second mounting plate and the third mounting plate, and the device stops running when a pressure signal detected by the pressure sensor reaches a set value through presetting a pressure threshold value of the pressure sensor; controlling a lifting device to drive a first mounting plate to move towards the workbench, and taking down the stretched sample piece from the clamping assembly for measurement; the operation is simple and the use is convenient;
in addition, safety protection is carried out in order to improve the security of experiment through the guard plate that sets up.
Drawings
Fig. 1 is a top view of a conventional standard sample for a tensile test of a metal material.
Fig. 2 is a schematic structural diagram of a testing device for a mechanical tensile test of a metal material according to the present invention.
Fig. 3 is a schematic structural diagram of a part a of the testing device for a mechanical tensile test of a metal material according to the present invention, which is enlarged.
Fig. 4 is a schematic structural diagram of a clamping assembly in a testing device for a mechanical tensile test of a metal material according to the present invention.
Fig. 5 is a schematic perspective view of a first fixing plate in the testing apparatus for a mechanical tensile test of a metal material according to the present invention.
Fig. 6 is a schematic perspective view of a clamping member in a testing apparatus for a mechanical tensile test of a metal material according to the present invention.
Fig. 7 is a cross-sectional view of fig. 5 in a testing apparatus for mechanical tensile testing of metallic materials according to the present invention.
Fig. 8 is a front view of a testing device for a mechanical tensile test of a metal material according to the present invention.
Reference numerals: 1. a work table; 2. a support pillar; 3. a support bar; 4. a guide bar; 5. a top plate; 6. a lifting device; 7. a first mounting plate; 8. a switch; 9. a host; 10. a first connecting rod; 11. a second mounting plate; 12. a pressure sensor; 13. a third mounting plate; 14. a second connecting rod; 15. a fourth mounting plate; 16. a baffle plate; 17. a nut; 18. a first fixing plate; 19. a clamping member; 191. a first hollow bin; 192. a second hollow bin; 193. a gap; 20. a threaded rod; 21. a protection plate; 22. a plug-in assembly; 23. a second fixing plate; 24. a bolt; 25. a threaded bore.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 2 to 8, the testing device for a metal material mechanical tensile test provided by the invention comprises a workbench 1, a support rod 3, a top plate 5, a first mounting plate 7, a first connecting rod 10, a second mounting plate 11, a pressure sensor 12, a third mounting plate 13, a second connecting rod 14, a fourth mounting plate 15 and two groups of clamping assemblies for clamping a standard tensile sample; wherein, a group of clamping components comprises a first fixing plate 18, a clamping piece 19, a threaded rod 20 and a second fixing plate 23;
two ends of the plurality of support rods 3 are respectively connected with the top plate 5 and the workbench 1; the lower end surface of the workbench 1 is provided with a plurality of supporting columns 2; a plurality of rubber pads are respectively arranged on the lower end surfaces of the support columns 2;
the top plate 5 is provided with a lifting device 6 for driving the first mounting plate 7 to move towards or away from the workbench 1; further, the lifting device 6 is selected from but not limited to a hydraulic cylinder; the lifting device 6 can be selected from a motor, a reel and a rope; one end of the rope is connected with the first mounting plate 7, and the other end of the rope is wound on the winding wheel; the reel is arranged on a rotating shaft of the motor, and the technical effect of driving the first mounting plate 7 to move is achieved through the arrangement; this is generally prior art;
one end of each of the first connecting rods 10 is connected with the lower end face of the first mounting plate 7, and the first connecting rods 10 are connected with the third mounting plate 13; a plurality of first through holes are formed in the third mounting plate 13;
the second mounting plate 11 is positioned between the first mounting plate 7 and the third mounting plate 13, and a space for mounting the pressure sensor 12 is reserved between the second mounting plate 11 and the third mounting plate 13;
one ends of the second connecting rods 14 are respectively connected with the second mounting plates 11, and the other ends of the second connecting rods 14 respectively penetrate through the first through holes one by one and are connected with the fourth mounting plates 15; the first mounting plate 7, the second mounting plate 11, the third mounting plate 13 and the fourth mounting plate 15 are parallel to each other;
the clamping piece 19 is arranged on the first fixing plate 18, and one end of the clamping piece 19 is provided with a first hollow cabin 191 extending inwards along the central axis thereof; the diameter value of the first hollow bin 191 is greater than the width value of the parallel ends of the test sample; the other end of the clamping piece 19 is provided with a second hollow bin 192 extending inwards along the central axis thereof; the inner wall of the second hollow bin 192 is a curved surface, the second hollow bin 192 is communicated with the first hollow bin 191, the diameter value of the second hollow bin 192 gradually decreases along the direction towards the first hollow bin 191, and the second hollow bin 192 and the first hollow bin 191 are provided with a gap 193 for the parallel section of the sample to pass through on the clamping piece 19;
the first fixing plate 18 is vertically arranged on the second fixing plate 23; the threaded rod 20 is rotatably connected with a second fixing plate 23; one threaded rod 20 arranged at the upper end of the sample is in threaded connection with the fourth mounting plate 15, and the other group of threaded rods 20 arranged at the lower end of the sample is in threaded connection with the workbench 1; it should be noted that the fourth mounting plate 15 and the workbench 1 are respectively provided with a threaded mounting hole for a threaded matching threaded rod 20; the central axes of the two threaded mounting holes are overlapped; in addition, the slits 193 of the two holders 19 are oriented in the same direction, and the center axes of the slits 193 overlap with each other, so that the sample is perpendicular to the table 1 during the test.
In the invention, when the clamping device is used, a proper clamping assembly is selected according to the size of a sample to clamp the sample, and the clamping assembly is conveniently installed with the fourth installation plate 15 and the workbench 1 through the arranged threaded rod 20, so that the clamping assembly is conveniently replaced; adjusting the distance between the two groups of clamping components, extending the parallel section of the sample into a first hollow bin 191 and a second hollow bin 192 which are communicated with each other from a gap 193 on the two clamping pieces 19, increasing the distance between the two groups of clamping components through a lifting device 6, continuously moving the first mounting plate 7 towards one side far away from the workbench 1, and pressing the end surface of the sample with the transition radius against the inner wall of the second hollow bin 192, namely clamping and fixing the sample through the clamping components; at the moment, the pressure sensor 12 is pressed between the second mounting plate 11 and the third mounting plate 13, and the device stops running when the pressure signal detected by the pressure sensor 12 reaches a set value through presetting the pressure threshold value of the pressure sensor 12; controlling the lifting device 6 to drive the first mounting plate 7 to move towards the workbench 1, and taking down the stretched sample piece from the clamping assembly for measurement; simple operation and convenient use.
In an alternative embodiment, the two sets of clamping assemblies further comprise two nuts 17; the two nuts 17 are respectively in threaded connection with the two threaded rods 20, and the end faces, facing the workbench 1 and the fourth mounting plate 15, of the two nuts 17 respectively press the workbench 1 and the fourth mounting plate 15; the firmness of the clamping assembly after installation is improved through the arranged nut 17.
In an alternative embodiment, a plurality of bolts 24 are included; wherein, a plurality of threaded holes 25 are arranged on the first fixing plate 18; the outer peripheral surface of the clamping piece 19 is provided with a plurality of threaded blind holes;
the plurality of bolts 24 are respectively threaded through the plurality of threaded holes 25 and screwed into the plurality of threaded blind holes; the bolts 24, the threaded holes 25 and the threaded blind holes correspond to one another; the first fixing plate 18 and the clamping piece 19 are detachably connected through a bolt 24, so that the clamping piece 19 is convenient to replace.
In an alternative embodiment, the clamp 19 is of cylindrical configuration; the projection of the first fixing plate 18 is a fan ring, and the inner diameter of the first fixing plate 18 is the same as the outer diameter of the clamping member 19.
In an alternative embodiment, a baffle 16 is included; the baffle 16 is vertically arranged on the workbench 1, and the baffle 16 is provided with scale marks along the height direction; the upper end face of the clamping piece 19 of the lower clamping assembly is parallel to the O scale of the scale marks, and the use of the clamping piece can be visually observed and stretched by observing the scale marks and stretching the sample piece.
In an alternative embodiment, two sets of guard plates 21 and a plug-in assembly 22 are included; wherein, the lower end surface of the top plate 5 is provided with a sliding chute along the length direction thereof; the upper end surface of the working table 1 is provided with a groove along the length direction;
the two groups of protection plates 21 are perpendicular to the workbench 1, the upper ends of the two groups of protection plates 21 are connected with the sliding grooves in a sliding mode, the lower ends of the two groups of protection plates 21 extend into the grooves, and the two groups of protection plates 21 are fixedly connected through the inserting assembly 22; the safety protection is carried out through the protection plate 21 arranged so as to improve the safety of the experiment.
In an alternative embodiment, the protective plate 21 is made of an impact-resistant transparent material to facilitate observation of the tensile specimen.
In an alternative embodiment, the latching assembly 22 is selected from, but not limited to, stainless steel latches.
In an alternative embodiment, a plurality of guide rods 4 are included; the first mounting plate 7 is provided with a plurality of vertical second through holes;
a plurality of guide bars 4 and workstation 1 vertical distribution, workstation 1 is connected respectively to the one end of a plurality of guide bars 4, and the other end of a plurality of guide bars 4 passes a plurality of second through-holes respectively one by one and connects roof 5.
In an alternative embodiment, a host 9 and a switch 8 are included; the switch 8 and the host machine 9 are both arranged on the workbench 1, a display screen is arranged on the host machine 9, and a circuit board and a microcontroller are arranged in the host machine 9; the microcontroller is arranged on the circuit board, the microcontroller controls and is connected with the lifting device 6, and the microcontroller is in communication connection with the display screen and the pressure sensor 12; the switch 8 is electrically connected with the circuit board; the switch 8 is connected with an external 220V mains supply through a lead to supply power to the device; the lifting device 6 is controlled by a microcontroller.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. The testing device for the mechanical tensile test of the metal materials is characterized by comprising a workbench (1), supporting rods (3), a top plate (5), a first mounting plate (7), a first connecting rod (10), a second mounting plate (11), a pressure sensor (12), a third mounting plate (13), a second connecting rod (14), a fourth mounting plate (15) and two groups of clamping components for clamping a standard tensile sample; wherein, one group of clamping components comprises a first fixing plate (18), a clamping piece (19), a threaded rod (20) and a second fixing plate (23);
two ends of the plurality of support rods (3) are respectively connected with the top plate (5) and the workbench (1); a plurality of supporting columns (2) are arranged on the lower end surface of the workbench (1); the top plate (5) is provided with a lifting device (6) for driving the first mounting plate (7) to move towards or away from the workbench (1);
one end of each first connecting rod (10) is connected with the lower end face of the first mounting plate (7), and each first connecting rod (10) is connected with the third mounting plate (13); a plurality of first through holes are formed in the third mounting plate (13); the second mounting plate (11) is positioned between the first mounting plate (7) and the third mounting plate (13), and a space for mounting the pressure sensor (12) is reserved between the second mounting plate (11) and the third mounting plate (13); one ends of the second connecting rods (14) are respectively connected with the second mounting plates (11), and the other ends of the second connecting rods (14) respectively penetrate through the first through holes one by one and are connected with the fourth mounting plates (15); the first mounting plate (7), the second mounting plate (11), the third mounting plate (13) and the fourth mounting plate (15) are parallel to each other;
the clamping piece (19) is arranged on the first fixing plate (18), and a first hollow bin (191) is arranged at one end of the clamping piece (19) extending inwards along the central axis thereof; the diameter value of the first hollow bin (191) is larger than the width value of the parallel end of the sample; the other end of the clamping piece (19) is provided with a second hollow bin (192) extending inwards along the central axis thereof; the inner wall of the second hollow bin (192) is a curved surface, the second hollow bin (192) is communicated with the first hollow bin (191), the diameter value of the second hollow bin (192) is gradually reduced along the direction towards the first hollow bin (191), and the second hollow bin (192) and the first hollow bin (191) are provided with a gap (193) for the parallel section of the test sample to pass through on the clamping piece (19);
the first fixing plate (18) is vertically arranged on the second fixing plate (23); the threaded rod (20) is rotatably connected with a second fixing plate (23); one threaded rod (20) arranged at the upper end of the sample is in threaded connection with the fourth mounting plate (15), and the other group of threaded rods (20) arranged at the lower end of the sample is in threaded connection with the workbench (1).
2. The testing device for the mechanical tensile test of the metal materials as claimed in claim 1, wherein the two groups of clamping components further comprise two nuts (17); two nuts (17) are respectively in threaded connection with two threaded rods (20), and the two nuts (17) respectively press the workbench (1) and the fourth mounting plate (15) towards the end faces of the workbench (1) and the fourth mounting plate (15).
3. The testing device for mechanical tensile test of metal material according to claim 1, comprising a plurality of bolts (24); wherein, a plurality of threaded holes (25) are arranged on the first fixing plate (18); the outer peripheral surface of the clamping piece (19) is provided with a plurality of threaded blind holes;
the bolts (24) respectively penetrate through the threaded holes (25) in a threaded mode and are screwed into the threaded blind holes in a threaded mode; wherein, the bolts (24), the threaded holes (25) and the threaded blind holes are in one-to-one correspondence.
4. A testing device for mechanical tensile test of metal material according to claim 3, wherein the holding member (19) is a cylindrical structure; the projection of the first fixing plate (18) is a fan ring, and the inner diameter value of the first fixing plate (18) is the same as the outer diameter value of the clamping piece (19).
5. The testing device for mechanical tensile test of metal material according to claim 1, comprising a baffle plate (16); the baffle (16) is vertically arranged on the workbench (1), and the baffle (16) is provided with scale marks along the height direction.
6. The testing device for the mechanical tensile test of the metal materials is characterized by comprising two groups of protection plates (21) and inserting and combining assemblies (22); wherein, the lower end surface of the top plate (5) is provided with a sliding chute along the length direction thereof; the upper end surface of the working table (1) is provided with a groove along the length direction;
two sets of guard plates (21) are all perpendicular with workstation (1), and the upper end sliding connection spout of two sets of guard plates (21), the lower extreme of two sets of guard plates (21) all stretch into the recess in, and two sets of guard plates (21) close subassembly (22) fixed connection through inserting.
7. The testing device for the mechanical tensile test of the metal materials as claimed in claim 6, wherein the protection plate (21) is made of an impact-resistant transparent material.
8. The testing device for the mechanical tensile test of the metal materials as claimed in claim 6, wherein the inserting assembly (22) is a stainless steel bolt.
9. The testing device for mechanical tensile test of metal material according to claim 1, comprising a plurality of guide rods (4); wherein, the first mounting plate (7) is provided with a plurality of vertical second through holes;
a plurality of guide bars (4) and workstation (1) vertical distribution, workstation (1) are connected respectively to the one end of a plurality of guide bars (4), and a plurality of second through-holes are passed respectively one by one to the other end of a plurality of guide bars (4) and roof (5) are connected.
10. The testing device for the mechanical tensile test of the metal material is characterized by comprising a host machine (9) and a switch (8); the switch (8) and the host (9) are both arranged on the workbench (1), a display screen is arranged on the host (9), and a circuit board and a microcontroller are arranged in the host (9); the microcontroller is arranged on the circuit board, the microcontroller controls and is connected with the lifting device (6), and the microcontroller is in communication connection with the display screen and the pressure sensor (12); the switch (8) is electrically connected with the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124657.4A CN111238936A (en) | 2020-02-27 | 2020-02-27 | Testing device for metal material mechanical tensile test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124657.4A CN111238936A (en) | 2020-02-27 | 2020-02-27 | Testing device for metal material mechanical tensile test |
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| CN111238936A true CN111238936A (en) | 2020-06-05 |
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| CN202010124657.4A Pending CN111238936A (en) | 2020-02-27 | 2020-02-27 | Testing device for metal material mechanical tensile test |
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Application publication date: 20200605 |