CN211292341U - Plastic compression performance testing device - Google Patents
Plastic compression performance testing device Download PDFInfo
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- CN211292341U CN211292341U CN201921989210.2U CN201921989210U CN211292341U CN 211292341 U CN211292341 U CN 211292341U CN 201921989210 U CN201921989210 U CN 201921989210U CN 211292341 U CN211292341 U CN 211292341U
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Abstract
The utility model discloses a plastics compression capability test device up includes in proper order down: the lifting device comprises a base, a first supporting column, a bottom plate, a top plate, a pressing plate, a lifting column and a driving mechanism; the bottom plate and the top plate are used for clamping a workpiece to be detected; the bottom plate, the first supporting column and the base are fixedly connected; the bottom end of the lifting column is fixedly connected with the pressing plate, and the top end of the lifting column is connected with the output end of the driving mechanism; the bottom plate is parallel to the top plate and horizontally arranged on the first support column; the base is also provided with a plurality of second support columns, the top ends of the second support columns are provided with mounting plates, and the driving mechanism is mounted on the mounting plates; the bottom plate is provided with a distance measuring unit for measuring the distance from the top surface of the bottom plate to the bottom surface of the top plate; the top surface of the top plate is provided with a pressure measuring unit for measuring the positive pressure applied to the top plate by the pressure plate; the testing device also comprises a display used for displaying the distance and pressure data measured by the distance measuring unit and the pressure measuring unit.
Description
Technical Field
The utility model belongs to the technical field of material capability test equipment, specifically a plastics compression capability test device.
Background
Plastics are used as synthetic materials, are widely applied to various fields such as industry, life and the like, and particularly have higher requirements on the performance of the plastics in the industrial field; when the existing plastic compression performance testing device is used for testing plastics, the influence of the deformation of the pressure sensing element on the deformation of the plastics is generally ignored, and therefore the testing error is increased.
The patent with publication number CN207336206U discloses a detection device for the compression strength of an ecological imitation wood board, which comprises a base, wherein a pillar is arranged on the base, a fixed connecting plate is fixed at the top end of the pillar, two hydraulic lifting columns which are arranged at intervals are fixed at the bottom surface of the fixed connecting plate, and a compression disc is arranged at the bottom ends of the hydraulic lifting columns; two support columns corresponding to the two hydraulic lifting columns are fixed on the base, a sample platform is respectively installed at the top ends of the two support columns, and a pressure sensing piece, a displacement sensor and a pressure data collector are arranged on the sample platform; the base is also provided with two display screens and two on-off switches. The detection device can detect the compression strength of the same component or different components of the ecological imitation wood board under the same or different test conditions, and meanwhile, the detection efficiency is improved.
The pressure-sensitive piece of this patent is installed on the sample platform, and when the compression dish pushed down, the pressure-sensitive piece pressurized can produce deformation, and this deformation has been neglected when calculating the deformation volume of work piece that awaits measuring (the displacement volume that the device was surveyed contains the deformation volume of work piece that awaits measuring plus the deformation volume of pressure-sensitive piece), leads to the displacement volume that actually surveys to be greater than the true deformation volume of work piece that awaits measuring.
Disclosure of Invention
The utility model aims at the problem that prior art exists, provide a plastics compression capability test device, the deformation displacement that can the accurate measurement plastics work piece and the pressure data that receive, the error is less.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a plastics compression capability test device, from up including in proper order down: the lifting device comprises a base, a first supporting column, a bottom plate, a top plate, a pressing plate, a lifting column and a driving mechanism; the bottom plate and the top plate are used for clamping a workpiece to be detected; the bottom plate, the first supporting column and the base are fixedly connected; the bottom end of the lifting column is fixedly connected with the pressing plate, and the top end of the lifting column is connected with the output end of the driving mechanism; the bottom plate is parallel to the top plate and horizontally arranged on the first support column; the base is also provided with a plurality of second support columns, the top ends of the second support columns are provided with mounting plates, and the driving mechanism is mounted on the mounting plates; the bottom plate is provided with a distance measuring unit for measuring the distance from the top surface of the bottom plate to the bottom surface of the top plate; the top surface of the top plate is provided with a pressure measuring unit for measuring the positive pressure applied to the top plate by the pressure plate; the testing device also comprises a display used for displaying the distance and pressure data measured by the distance measuring unit and the pressure measuring unit.
The utility model discloses an increase a roof between clamp plate and bottom plate, the clamp plate passes through the indirect transmission of roof for the work piece of forward pressure that the work piece was applyed, top surface through at the roof sets up the load cell, make the deformation volume of load cell can not exert an influence to the pressurized deformation volume of work piece, because the distance that the range unit recorded is the distance of floor top surface to the roof bottom surface, and the load cell is established at the roof top surface, the displacement volume that the range unit recorded promptly does not contain the deformation volume of load cell, consequently, the influence of load cell deformation volume to work piece pressurized deformation volume has been avoided, the accuracy of work piece compression performance test has been improved.
Preferably, the bottom surface of the top plate is provided with a plurality of guide rods, the bottom plate is provided with a plurality of through holes matched with the guide rods in position and outer diameter size, and the top plate and the bottom plate are detachably connected through the guide rods and the through holes; through set up the guide arm top plate bottom surface to set up the through-hole on the bottom plate, make the roof can not produce lateral displacement pushing down the in-process, guide arm and through-hole play the spacing effect of a direction, have improved testing arrangement's stability and reliability.
Furthermore, a ring column is arranged at the position, corresponding to the through hole, of the top surface of the bottom plate, the inner diameter of the ring column is matched with the outer diameter of the guide rod, and the top surface of the ring column is higher than that of the ranging unit; through set up the ring post at the bottom plate top surface, can prevent that the pressure that the plastics work piece received from surpassing the biggest scope of bearing and squashing or when broken, the distance measuring unit is pressed to the top plate, and the ring post can play the effect of protection distance measuring unit.
Further, the ring post top surface is equipped with the rubber backing ring, through setting up the rubber backing ring can play buffering and guard action when the roof is pressed the ring post, avoids damaging ring post and roof.
Specifically, the driving mechanism comprises a lifting motor or a hydraulic oil cylinder.
Specifically, the ranging unit includes a laser range finder.
Specifically, the pressure measuring unit comprises a pressure sensor, and the size of a pressure sensing surface of the pressure sensor is larger than that of the bottom surface of the pressure plate, so that the positive pressure applied to the top plate by the pressure plate is accurately measured.
Compared with the prior art, the beneficial effects of the utility model are that: (1) the utility model discloses a set up the roof between clamp plate and bottom plate, the clamp plate transmits forward pressure to the work piece that awaits measuring indirectly through the roof to set up the pressure cell at the roof top surface, avoid the deformation volume of pressure cell to produce the influence to the deformation volume of work piece in the test process, thereby improved and measured the precision; (2) the utility model discloses a set up a plurality of guide arms in the roof bottom surface to set up a plurality of through-holes on the bottom plate, lead and spacing the displacement of roof through guide arm and through-hole, avoid the roof to skid (produce the lateral displacement) in the process of pushing down, thereby improve the stability and the reliability of device; (3) the utility model discloses a set up a plurality of ring posts on the bottom plate, when the pressure that can avoid plastic workpiece to receive surpassed the maximum scope of bearing and flattened or broken, the distance measuring unit was pressed to the roof, and the ring post can play the effect of protection distance measuring unit.
Drawings
FIG. 1 is a schematic view of the overall structure of a device for testing the compressibility of plastics according to the present invention;
FIG. 2 is a schematic view of the connection structure of the middle bottom plate and the top plate of the present invention;
in the figure: 1. a base; 2. a first support column; 3. a base plate; 4. a top plate; 5. pressing a plate; 6. a lifting column; 7. a drive mechanism; 8. a second support column; 9. mounting a plate; 10. a distance measuring unit; 11. a pressure measuring unit; 12. a guide bar; 13. a through hole; 14. a ring column; 15. a rubber grommet; 16. and (5) a workpiece.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the present embodiment provides a plastic compression performance testing apparatus, which sequentially includes from bottom to top: the device comprises a base 1, a first support column 2, a bottom plate 3, a top plate 4, a pressing plate 5, a lifting column 6 and a driving mechanism 7; the workpiece 16 to be measured is clamped between the bottom plate 3 and the top plate 4; the bottom plate 3, the first supporting column 2 and the base 1 are fixedly connected; the bottom end of the lifting column 6 is fixedly connected with the pressing plate 5, and the top end of the lifting column 6 is connected with the output end of the driving mechanism 7; the bottom plate 3 is parallel to the top plate 4, and the bottom plate 3 is horizontally arranged on the first support column 2; a plurality of second support columns 8 are further arranged on the base 1, mounting plates 9 are arranged at the top ends of the second support columns 8, and the driving mechanism 7 is mounted on the mounting plates 9; the bottom plate 3 is provided with a distance measuring unit 10 for measuring the distance from the top surface of the bottom plate 3 to the bottom surface of the top plate 4; the top surface of the top plate 4 is provided with a pressure measuring unit 11 for measuring the positive pressure applied to the top plate 4 by the pressure plate 5; the testing device further comprises a display for displaying distance and pressure data measured by the distance measuring unit 10 and the pressure measuring unit 11.
Specifically, in this embodiment, the cross sections of the bottom plate 3, the top plate 4, and the pressing plate 5 may be circular, or may be square in practical application.
In the embodiment, the top plate 4 is additionally arranged between the pressing plate 5 and the bottom plate 3, the forward pressure applied to the workpiece 16 by the pressing plate 5 is indirectly transmitted to the workpiece 16 through the top plate 4, the pressure measuring unit 11 is arranged on the top surface of the top plate 4, so that the deformation of the pressure measuring unit 11 cannot influence the deformation of the workpiece 16 under pressure, because the distance measured by the distance measuring unit 10 is the distance from the top surface of the floor to the bottom surface of the top plate 4, and the pressure measuring unit 11 is arranged on the top surface of the top plate 4, namely, the displacement measured by the distance measuring unit 10 does not contain the deformation of the pressure measuring unit 11, the influence of the deformation of the pressure measuring unit 11 on the deformation of the workpiece 16 under pressure is avoided, and the accuracy of the compression performance.
Preferably, the bottom surface of the top plate 4 is provided with a plurality of guide rods 12, the bottom plate 3 is provided with a plurality of through holes 13 matched with the positions and the outer diameter sizes of the guide rods 12, and the top plate 4 and the bottom plate 3 are detachably connected through the plurality of guide rods 12 and the through holes 13; through set up guide arm 12 in roof 4 bottom surface to set up through-hole 13 on bottom plate 3, make roof 4 can not produce lateral displacement at the in-process that pushes down, guide arm 12 and through-hole 13 play a direction spacing effect, have improved testing arrangement's stability and reliability.
Furthermore, a ring column 14 is arranged on the top surface of the bottom plate 3 corresponding to the through hole 13, the inner diameter of the ring column 14 is matched with the outer diameter of the guide rod 12, and the top surface of the ring column 14 is higher than the top surface of the ranging unit 10; by arranging the ring pillar 14 on the top surface of the bottom plate 3, when the plastic workpiece 16 is prevented from being crushed or broken beyond the maximum bearing range by pressure, the top plate 4 presses the distance measuring unit 10, and the ring pillar 14 can protect the distance measuring unit 10.
Optionally, the ring pillar 14 may also be disposed at another place not corresponding to the through hole 13, and the space occupation rate can be saved by disposing the ring pillar 14 at the place corresponding to the through hole 13 in this embodiment.
Further, the top surface of the ring post 14 is provided with a rubber gasket ring 15, and the rubber gasket ring 15 can play a role in buffering and protecting when the top plate 4 presses the ring post 14, so that the ring post 14 and the top plate 4 are prevented from being damaged.
Specifically, the driving mechanism 7 is a hydraulic cylinder.
Specifically, the distance measuring unit 10 includes a laser distance measuring instrument, a main body portion of the laser distance measuring instrument is arranged inside the bottom plate 3, and a laser distance measuring head is located above the bottom plate 3.
Specifically, the load cell 11 includes a pressure sensor having a pressure sensing surface size larger than a bottom surface size of the pressure plate 5, so as to accurately measure the forward pressure applied by the pressure plate 5 to the top plate 4. The pressure sensor adopts a piezoresistor type pressure sensor.
Specifically, in this embodiment, the display is an oscilloscope, and an F- Δ X curve can be fitted according to the measured pressure data and the deformation data of the plastic workpiece 16 by using the oscilloscope, where F is the sum of the forward pressure applied by the pressing plate 5 to the top plate 4 and the gravity of the pressing plate 5 and the guide rod 12, and Δ X is the distance variation (i.e., the plastic deformation) from the top surface of the bottom plate 3 to the bottom surface of the top plate 4 measured by the laser distance meter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a plastics compression capability test device which from up includes down in proper order: the lifting device comprises a base, a first supporting column, a bottom plate, a top plate, a pressing plate, a lifting column and a driving mechanism; the bottom plate and the top plate are used for clamping a workpiece to be detected; the bottom plate, the first supporting column and the base are fixedly connected; the bottom end of the lifting column is fixedly connected with the pressing plate, and the top end of the lifting column is connected with the output end of the driving mechanism; the bottom plate is parallel to the top plate and horizontally arranged on the first support column; the base is also provided with a plurality of second support columns, the top ends of the second support columns are provided with mounting plates, and the driving mechanism is mounted on the mounting plates; the bottom plate is provided with a distance measuring unit for measuring the distance from the top surface of the bottom plate to the bottom surface of the top plate; the top surface of the top plate is provided with a pressure measuring unit for measuring the positive pressure applied to the top plate by the pressure plate; the testing device also comprises a display used for displaying the distance and pressure data measured by the distance measuring unit and the pressure measuring unit.
2. The plastic compression performance testing device as claimed in claim 1, wherein the top plate is provided with a plurality of guide rods on the bottom surface, the bottom plate is provided with a plurality of through holes matched with the guide rods in position and outer diameter, and the top plate and the bottom plate are detachably connected through the plurality of guide rods and the through holes.
3. The plastic compression performance testing device as claimed in claim 2, wherein a ring column is arranged on the top surface of the bottom plate corresponding to the through hole, the inner diameter of the ring column is matched with the outer diameter of the guide rod, and the top surface of the ring column is higher than the top surface of the distance measuring unit.
4. The plastic compression testing device of claim 3, wherein the top surface of the ring column is provided with a rubber backing ring.
5. The apparatus for testing the compression property of plastics according to claim 1, wherein the driving mechanism comprises a lifting motor or a hydraulic cylinder.
6. The apparatus for testing compression properties of plastics according to claim 1, wherein the distance measuring unit comprises a laser distance measuring device.
7. The plastic compression testing device of claim 1, wherein the load cell comprises a pressure sensor, and the pressure sensing surface of the pressure sensor is larger than the bottom surface of the pressure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921989210.2U CN211292341U (en) | 2019-11-18 | 2019-11-18 | Plastic compression performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921989210.2U CN211292341U (en) | 2019-11-18 | 2019-11-18 | Plastic compression performance testing device |
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| CN211292341U true CN211292341U (en) | 2020-08-18 |
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| CN201921989210.2U Active CN211292341U (en) | 2019-11-18 | 2019-11-18 | Plastic compression performance testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485157A (en) * | 2020-12-15 | 2021-03-12 | 中国科学院空间应用工程与技术中心 | Soft material fluidity detection device |
| CN113237735A (en) * | 2021-05-31 | 2021-08-10 | 邬英波 | Toughness detection device capable of being adaptively adjusted for plastic processing |
| CN116879045A (en) * | 2023-09-07 | 2023-10-13 | 常州市建筑材料研究所有限公司 | Door and window compressive property detection device convenient to use |
-
2019
- 2019-11-18 CN CN201921989210.2U patent/CN211292341U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485157A (en) * | 2020-12-15 | 2021-03-12 | 中国科学院空间应用工程与技术中心 | Soft material fluidity detection device |
| CN112485157B (en) * | 2020-12-15 | 2022-11-29 | 中国科学院空间应用工程与技术中心 | Soft material fluidity detection device |
| CN113237735A (en) * | 2021-05-31 | 2021-08-10 | 邬英波 | Toughness detection device capable of being adaptively adjusted for plastic processing |
| CN113237735B (en) * | 2021-05-31 | 2023-03-14 | 临沂梅浩塑料制品有限公司 | Toughness detection device for plastic processing capable of being adaptively adjusted |
| CN116879045A (en) * | 2023-09-07 | 2023-10-13 | 常州市建筑材料研究所有限公司 | Door and window compressive property detection device convenient to use |
| CN116879045B (en) * | 2023-09-07 | 2023-12-08 | 常州市建筑材料研究所有限公司 | Door and window compressive property detection device convenient to use |
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