CN202649042U - Four-point bending clamp for glass - Google Patents
Four-point bending clamp for glass Download PDFInfo
- Publication number
- CN202649042U CN202649042U CN 201220305239 CN201220305239U CN202649042U CN 202649042 U CN202649042 U CN 202649042U CN 201220305239 CN201220305239 CN 201220305239 CN 201220305239 U CN201220305239 U CN 201220305239U CN 202649042 U CN202649042 U CN 202649042U
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- China
- Prior art keywords
- pressure roller
- glass
- point bending
- roller
- pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a four-point bending clamp for glass. The four-point bending clamp comprises two support rolls for supporting a glass plate sample and two press rolls for loading the upper surface of the glass plate sample, and further comprises a movable cross beam for driving the press rolls to carry out loading, wherein both the support rolls and the press rolls can rotate automatically. The four-point bending clamp is characterized in that the two support rolls are arranged on a roll support frame in a fixed position manner; the roll support frame is provided with a connection part for connection with a tester workbench; and the two press rolls are arranged on one press roll lifting frame, the vertical distance between axes of the two press rolls is fixed, and the top end of the press roll lifting frame is connected with the movable cross beam through a pressure sensor for measuring loading force. According to the four-point bending clamp, relative positions between the two support rolls and between the two press rolls do not need to be redetermined during each test, simplicity and convenience are brought to operation, and the test efficiency is high.
Description
Technical field
The utility model relates to a kind of glass plate four-point bending test device, especially glass plate four-point bending test anchor clamps.
Background technology
At present, glass plate four-point bending test equipment therefor comprises that two rollers that is used for the support glass plane plate specimen, two are used for the pressure roller that glass plate sample upper surface is loaded, but described roller, all rotations of pressure roller.
During test, two rollers are fixed on the base, glass plate is placed on the roller, then two pressure rollers are placed on the glass plate top by required distance, the moving beam of a rigidity is arranged in two pressure roller tops, moving beam to this rigidity applies test force, and moving beam band dynamic pressure roller loads glass plate and tests.
According to the GB testing requirements, as shown in Figure 1, the relative position between two rollers 15 is that the relative position between Ls=1000 ± 2mm, two pressure rollers 14 is Lb=200 ± 1mm.
Above-mentioned clamping mode during each test operation, all needs to determine the relative position (being Ls) between two rollers 15, the relative position (being Lb) between two pressure rollers 14, as shown in Figure 1, the operation more complicated, efficient is low.
The utility model content
The shortcoming that exists in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of glass four-point bending anchor clamps, and it all redefines the relative position between two rollers, between two pressure rollers when noting be used in each test, and easy and simple to handle, test efficiency is high.
In order to address the above problem, the utility model is by the following technical solutions: glass four-point bending anchor clamps, comprise that two rollers that is used for the support glass plane plate specimen, two are used for the pressure roller that glass plate sample upper surface is loaded, also comprise with dynamic pressure roller and implement the moving beam that loads; But described roller, all rotations of pressure roller;
Described two fixing being arranged on the supporting roll frame in roller position; Described supporting roll frame is provided with the coupling part that is connected for the testing machine worktable;
Described two pressure rollers are arranged on the pressure roller suspension bracket, and the vertical range between the axis of two pressure rollers fixes, and the top of described pressure roller suspension bracket is connected with described moving beam by the pressure transducer of measuring loading force.
Preferably, described pressure roller suspension bracket comprises:
Longeron is horizontally disposed with and is provided with two groups, and two groups of longerons are installed respectively a pressure roller, and longeron is parallel with pressure roller;
Crossbeam is horizontally disposed with, and intersects vertically with described longeron, and two groups of longerons are connected by a hinged place respectively with between the crossbeam, described hinged place be around the crossbeam axis freely rotate hinged;
The axial centre position of the crossbeam hinged a connection piece that makes progress, and the bearing pin of this hinged usefulness is parallel with described pressure roller; The top of described web member is connected with described pressure transducer by the sensor connecting link; Pressure transducer is packed on the moving beam.
Preferably, described roller two ends are installed on the described supporting roll frame by a roller bearing respectively.
Preferably, described pressure roller two ends are installed on the described longeron by the pressure roller bearing respectively.
Preferably, the coupling part of described supporting roll frame is provided with pilot hole and bolt connecting hole.
The beneficial effects of the utility model are:
(1) prop up roller and be fixed on the supporting roll frame, supporting roll frame is connected with the testing machine table positions, and the relative position between such two rollers can be determined, does not need to rearrange when testing at every turn;
Two pressure rollers are arranged on the pressure roller suspension bracket, and the relative position between two pressure rollers is also determined, does not need to rearrange when testing at every turn;
Therefore place sample and just can test, convenient and reliable operation, and can be connected with the worktable of common universal testing machine by supporting roll frame, must not transform testing machine.
(2) the pressure roller suspension bracket adopts being hinged and connected that perpendicular layout in length and breadth can rotate mutually to connect, make that two pressure rollers can remain parallel swinging up and down in the process of the test, also can be independent around the crossbeam axial rotation namely two pressure rollers intersect, thereby prevent from causing producing between pressure roller and the glass plate unsettled because of glass plate compressive deformation (comprising torsional deformation), be subjected to eccentric force because produce the pressure transducer that unsettled meeting causes measuring loading force, thereby test force will be far short of what is expected, and test findings is inaccurate.Arranging of this pressure roller suspension bracket can be avoided the problems referred to above, warranty test result's accuracy.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further:
Fig. 1 is the status architecture schematic diagram during the glass plate four-point bending test in the prior art;
Fig. 2 is the front view of the utility model embodiment;
Fig. 3 is the left view of the utility model embodiment;
Fig. 4 is the vertical view of the utility model embodiment;
Fig. 5 is the view that swings up and down of two pressure rollers keeping parallelism in process of the test among the utility model embodiment;
Unsettled view appears in Fig. 6 between pressure roller and the glass plate in the process of the test;
Fig. 7 is that two pressure rollers are independent around the i.e. two pressure rollers view of intersecting of crossbeam axial rotation in process of the test among the utility model embodiment;
Among the figure: 1 reference column, 2 testing machine worktable, 3 supporting roll frames, 4 roller bearings, 5 glass plate samples, 6 pressure roller bearings, 7 crossbeams, 8 register pins, 9 sensor connecting links, 10 nuts, 11 pressure transducers, 12 moving beams, 13 longerons, 14 pressure rollers, 15 rollers, 16 coupling bolts, 17 web members.
Embodiment
Shown in Fig. 2,3,4, these glass four-point bending anchor clamps comprise that mainly two rollers 15 that is used for support glass plane plate specimen 5, two are used for the pressure roller 14 that glass plate sample 5 upper surfaces are loaded, and also comprise with dynamic pressure roller 14 implementing the moving beam 12 that loads; But described roller 15, pressure roller 14 equal rotations.
Described two fixing being arranged on the supporting roll frame 3 in roller 15 positions; Among this embodiment, roller 15 two ends is installed on the described supporting roll frame 3 by a roller bearing 4 respectively, and a convenient roller 15 is realized rotation.
Described supporting roll frame 3 is provided with the coupling part that is connected for testing machine worktable 2.This coupling part is provided with pilot hole and bolt connecting hole, and its pilot hole is located by connecting by reference column 1 and testing machine worktable 2, then is bolted hole, coupling bolt 16 and testing machine worktable 2 fixing.
Relative position between such two rollers 15 is that Ls is fixed, and does not need to rearrange when testing at every turn.In addition, the setting of supporting roll frame 3 makes a roller 15 can be connected with the worktable of common universal testing machine by supporting roll frame 3, must not transform testing machine.
Two pressure rollers 14 of these glass four-point bending anchor clamps are arranged on the pressure roller suspension bracket, and the vertical range between the axis of two pressure rollers 14 fixes, and namely Lb fixes.The top of described pressure roller suspension bracket is connected with described moving beam 12 by the pressure transducer 11 of measuring loading force.
Described pressure roller suspension bracket mainly comprises longeron 13, crossbeam 7.
Wherein longeron 13 is horizontally disposed with and is provided with two groups, and two groups of longerons 13 are installed respectively a pressure roller.Longeron 13 is parallel with pressure roller 14.Pressure roller 14 two ends are installed on the longeron 13 by pressure roller bearing 6 respectively, make things convenient for pressure roller to realize rotation.
Its middle cross beam 7 is also for being horizontally disposed with, and crossbeam 7 intersects vertically with longeron 13, and two groups of longerons 13 are connected by a hinged place respectively with between the crossbeam 7, described hinged place be around the crossbeam axis freely rotate hinged.
The crossbeam 7 axial centre positions hinged a connection piece 17 that makes progress, and the bearing pin used of this hinged place is parallel with described pressure roller 14; The top of described web member 17 is by a register pin 8 connecting sensor connecting links 9 bottoms, and sensor connecting link top 9 is connected with described pressure transducer 11; Pressure transducer 11 is packed on the moving beam 12, and fixing with nut 10.
During test, the supporting roll frame 3 of anchor clamps is fixed on the testing machine worktable 2 by reference column 1, the pressure roller suspension bracket is connected with pressure transducer 11 with sensor connecting link 9 by register pin 8, and pressure transducer 11 is connected by screw on moving beam 12.
As shown in Figure 5, two pressure rollers 14 can remain parallel swinging up and down, can place because of in glass plate sample 5 pressurized process because bending causes between its upper surface and the pressure roller 14 generation unsettled, as shown in Figure 6.Be subjected to eccentric force because produce the pressure transducer 11 that unsettled meeting causes measuring loading force, thereby test force will be far short of what is expected, test findings is inaccurate.
As shown in Figure 6, what two pressure rollers 14 also can be independent is that two pressure rollers intersect around crossbeam 7 axial rotation, the torsional deformation that produces to adapt to glass plate sample 5 pressurizeds.
The manner of above-mentioned pressure roller 14, avoid to keep in touch because pressurized produces between pressure roller 14 that flexural deformation or torsional deformation cause and its upper surface because of glass plate sample 5 upper surfaces, the test of energy warranty test power is accurate, thereby the warranty test result is more true and reliable.
Claims (5)
1. glass four-point bending anchor clamps comprise that two rollers that is used for the support glass plane plate specimen, two are used for the pressure roller that glass plate sample upper surface is loaded, and also comprise with dynamic pressure roller implementing the moving beam that loads; But described roller, all rotations of pressure roller; It is characterized in that,
Described two fixing being arranged on the supporting roll frame in roller position; Described supporting roll frame is provided with the coupling part that is connected for the testing machine worktable;
Described two pressure rollers are arranged on the pressure roller suspension bracket, and the vertical range between the axis of two pressure rollers fixes, and the top of described pressure roller suspension bracket is connected with described moving beam by the pressure transducer of measuring loading force.
2. glass four-point bending anchor clamps according to claim 1 is characterized in that, described pressure roller suspension bracket comprises:
Longeron is horizontally disposed with and is provided with two groups, and two groups of longerons are installed respectively a pressure roller, and longeron is parallel with pressure roller;
Crossbeam is horizontally disposed with, and intersects vertically with described longeron, and two groups of longerons are connected by a hinged place respectively with between the crossbeam, described hinged place be around the crossbeam axis freely rotate hinged;
The axial centre position of the crossbeam hinged a connection piece that makes progress, and the bearing pin of this hinged usefulness is parallel with described pressure roller; The top of described web member is connected with described pressure transducer by the sensor connecting link; Pressure transducer is packed on the moving beam.
3. glass four-point bending anchor clamps according to claim 1 and 2 is characterized in that, described roller two ends are installed on the described supporting roll frame by a roller bearing respectively.
4. glass four-point bending anchor clamps according to claim 1 and 2 is characterized in that, described pressure roller two ends are installed on the described longeron by the pressure roller bearing respectively.
5. glass four-point bending anchor clamps according to claim 2, it is characterized in that: the coupling part of described supporting roll frame is provided with pilot hole and bolt connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305239 CN202649042U (en) | 2012-06-28 | 2012-06-28 | Four-point bending clamp for glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305239 CN202649042U (en) | 2012-06-28 | 2012-06-28 | Four-point bending clamp for glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202649042U true CN202649042U (en) | 2013-01-02 |
Family
ID=47418134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305239 Withdrawn - After Issue CN202649042U (en) | 2012-06-28 | 2012-06-28 | Four-point bending clamp for glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202649042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706739A (en) * | 2012-06-28 | 2012-10-03 | 济南科汇试验设备有限公司 | Glass four-point bending clamp |
| CN108627396A (en) * | 2018-05-04 | 2018-10-09 | 武汉理工大学 | A kind of test method of ultra-thin glass bending strength |
-
2012
- 2012-06-28 CN CN 201220305239 patent/CN202649042U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706739A (en) * | 2012-06-28 | 2012-10-03 | 济南科汇试验设备有限公司 | Glass four-point bending clamp |
| CN108627396A (en) * | 2018-05-04 | 2018-10-09 | 武汉理工大学 | A kind of test method of ultra-thin glass bending strength |
| CN108627396B (en) * | 2018-05-04 | 2020-02-14 | 武汉理工大学 | Method for testing bending strength of ultrathin glass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20140402 |
|
| RGAV | Abandon patent right to avoid regrant |