CN213148560U - Frock clamp and universal tester are used in test of sheet metal glass compressive resistance - Google Patents
Frock clamp and universal tester are used in test of sheet metal glass compressive resistance Download PDFInfo
- Publication number
- CN213148560U CN213148560U CN202022119140.4U CN202022119140U CN213148560U CN 213148560 U CN213148560 U CN 213148560U CN 202022119140 U CN202022119140 U CN 202022119140U CN 213148560 U CN213148560 U CN 213148560U
- Authority
- CN
- China
- Prior art keywords
- sheet glass
- pressure
- sample
- testing
- main body
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to the technical field of the glass test, specifically disclose a sheet metal glass is frock clamp and universal tester for compressive resistance test, aim at solving the problem that current glass compressive resistance test anchor clamps can't assist universal tester to accomplish the compressive resistance test to sheet metal glass. The frock clamp for the pressure resistance test of the sheet glass comprises a sample clamping seat for clamping a sheet glass sample and an upper pressure rod matched with a pressure head of a force sensor of a universal testing machine. The universal testing machine comprises the tool clamp for the pressure resistance test of the sheet glass. The tool clamp auxiliary universal testing machine for the pressure resistance test of the sheet glass can realize quick and accurate test of the normal force and the maximum load force of the sheet glass, has simple technical principle and easy operation, and can avoid the damage of the force sensor caused by exceeding the maximum load force.
Description
Technical Field
The utility model belongs to the technical field of the glass test, concretely relates to sheet metal glass frock clamp and universal tester for compressive resistance test.
Background
The mechanical property of the material refers to the mechanical characteristics of the material under various external loads, such as tension, compression, bending, torsion, impact, alternating stress and the like under different environments. The glass is an amorphous inorganic non-metallic material, is widely applied to the fields of buildings, daily use, art, medical treatment, chemistry, electronics, instruments, nuclear engineering and the like, and is very necessary to test the mechanical property.
At present, in the mechanical test of glass, three-point bending and four-point bending require that the length of a sample is more than 30mm, and the compressive strength test requires that the thickness of the glass sample is 12.5mm, and glass strips or large glass raw materials can be processed into shapes and sizes meeting the test requirements. However, with the progress of scientific technology, optical glass is developed toward small and thin lightweight materials, such as: sheet glass with a length of less than 30mm and a thickness of less than 0.2 mm. When the pressure resistance test is carried out on the sheet glass, firstly, the shape and the size can not meet the requirements of the test on the shape and the size of a sample; secondly, because the sample is too thin, if the sample is placed on a conventional glass pressure resistance performance test fixture, the force sensor of the universal testing machine cannot sense the constant force attenuation amplitude of the sample, the sample cannot be automatically returned in time, the test cannot be finished, and the force sensor is easy to continuously press on the table top of the sample fixture, so that the force sensor is damaged due to the fact that the maximum load force is exceeded.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sheet metal glass is frock clamp for compressive stress test aims at solving the problem that the unable supplementary universal tester of current glass compressive stress capability test anchor clamps accomplishes the compressive stress capability test to sheet metal glass.
The utility model provides a technical scheme that its technical problem adopted is: the frock clamp for the pressure resistance test of the sheet glass comprises a sample clamping seat for clamping a sheet glass sample and an upper pressure rod matched with a pressure head of a force sensor of a universal testing machine;
the sample clamping seat comprises a hollow clamping seat main body, the top of the clamping seat main body is provided with an opening, an annular supporting table is arranged at the opening, a sample fixing groove is arranged on the annular supporting table, and a sample taking and placing gap is arranged on the groove wall of the sample fixing groove;
the upper pressure lever comprises an upper pressure lever section and a lower pressure lever section which are coaxially connected together, the diameter of the lower pressure lever section is smaller than that of the upper pressure lever section, the upper end surface of the upper pressure lever section is parallel to the lower end surface of the lower pressure lever section, the surface roughness Ra of the lower end surface of the lower pressure lever section is less than or equal to 0.8 mu m, and the upper part of the upper pressure lever section is provided with a connecting structure.
Furthermore, a slag hole communicated with the inner cavity of the holder main body is arranged on the side wall of the holder main body.
Further, the sample clamping seat further comprises a positioning base and two fixing pieces arranged on the positioning base at intervals, and the clamping seat main body is arranged between the two fixing pieces.
Furthermore, a central positioning part which can be connected with a base of the universal testing machine is arranged on the positioning base.
Furthermore, horizontal scale marks are arranged on the positioning base.
Furthermore, the fixing piece is provided with a positioning fixing part matched with the clamping seat main body.
Furthermore, the side wall of the holder main body is also provided with a fixing hole corresponding to the positioning fixing part, and a connecting piece for connecting the holder main body and the fixing piece is arranged in the fixing hole.
Further, the holder main body is made of polytetrafluoroethylene materials, and the positioning base and the upper pressure rod are made of hard alloy.
Furthermore, the error of parallelism between the upper end surface of the upper section of the pressure lever and the lower end surface of the lower section of the pressure lever is not more than 0.015 mm.
The utility model also provides an universal tester, include the force sensor pressure head and be located the base of force sensor pressure head below, still include foretell sheet metal glass frock clamp for compressive stress test, sheet metal glass is frock clamp for compressive stress test's sample clamping seat fixed on the base, sheet metal glass compressive stress test is with frock clamp's last depression bar through connection structure and force sensor pressure head coaxial coupling together.
The utility model has the advantages that: the tool clamp for the pressure resistance test of the sheet glass is utilized to assist the universal testing machine, so that the normal force and the maximum load force of the sheet glass can be quickly and accurately tested, and the technical principle is simple and easy to operate; in the testing process, a sheet glass sample can be conveniently and quickly taken and placed through the sample taking and placing gap, the sheet glass sample can be effectively fixed through the sample fixing groove, the sheet glass sample is stably placed on a base of the universal testing machine, meanwhile, the upper pressure rod with the large diameter upper section and the small diameter lower section is used for assisting a force sensor pressure head of the universal testing machine to press down the sheet glass sample, on one hand, the contact area of the pressing down is smaller, the testing pressure is favorably reduced, on the other hand, the force sensor pressure head can be protected, and the service life of the force sensor pressure head is prolonged; in addition, because the holder main part is hollow structure, after the sheet glass sample is broken, if the force sensor pressure head is not timely and automatically returned to the car, also do not produce direct contact with the sample holder, can avoid the force sensor because of exceeding the damage of maximum loading power.
Drawings
FIG. 1 is a schematic view of an embodiment of a fixture for testing the pressure resistance of a medium-thin plate glass of the present invention;
fig. 2 is a schematic top view of the main body of the clamping seat of the present invention;
FIG. 3 is a schematic diagram of an implementation structure of the universal testing machine of the present invention;
labeled as: the device comprises a universal testing machine 100, a force sensor pressure head 110, a base 120, a sample clamping seat 200, a clamping seat main body 210, a slag outlet 211, a fixing hole 212, an annular supporting platform 220, a sample fixing groove 221, a sample taking and placing notch 222, a positioning base 230, a fixing part 240, a positioning fixing part 241, an upper pressure rod 300, an upper pressure rod section 310, a connecting structure 311, a lower pressure rod section 320 and a sheet glass sample 400.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, the tooling clamp for testing the pressure resistance of the sheet glass comprises a sample clamping seat 200 for clamping a sheet glass sample 400 and an upper pressure rod 300 for matching with a force sensor pressure head 110 of a universal testing machine 100;
the sample clamping holder 200 comprises a hollow holder main body 210, the top of the holder main body 210 is provided with an opening, an annular supporting platform 220 is arranged at the opening, a sample fixing groove 221 is arranged on the annular supporting platform 220, and a sample taking and placing gap 222 is arranged on the wall of the sample fixing groove 221;
the upper compression bar 300 comprises an upper compression bar section 310 and a lower compression bar section 320 which are coaxially connected together, the diameter of the lower compression bar section 320 is smaller than that of the upper compression bar section 310, the upper end surface of the upper compression bar section 310 is parallel to the lower end surface of the lower compression bar section 320, the surface roughness Ra of the lower end surface of the lower compression bar section 320 is less than or equal to 0.8 μm, and the upper portion of the upper compression bar section 310 is provided with a connecting structure 311.
When the tool fixture for testing the pressure resistance of the sheet glass is used for assisting the universal tester 100, the sample clamping seat 200 is fixed on the base 120, the upper pressure rod 300 is connected with the pressure head 110 of the force sensor, and corresponds to the center of the sample fixing groove 221, as shown in fig. 3; in the testing process, the thin plate glass sample 400 is placed in the sample fixing groove 221, and the upper pressure rod 300 is driven by the pressure head 110 of the force sensor to press down the thin plate glass sample 400, so that the test of the normal force and the maximum load force of the thin plate glass sample 400 is realized; the descending speed of the upper press rod 300 is controlled by the control device of the universal tester 100, and the descending displacement of the upper press rod 300, the deflection of the thin plate glass sample 400 and the change of the load size can be controlled and displayed by the control device and the display device of the universal tester 100. Because the holder main body 210 is of a hollow structure, after the sheet glass sample 400 is broken, if the pressure head 110 of the force sensor does not automatically return to the sample holder 200 in time, the force sensor does not directly contact with the sample holder 200, and the force sensor can be prevented from being damaged due to exceeding the maximum load force; in addition, because the upper pressure lever 300 has a structure with a large diameter upper section and a small diameter lower section, the contact area of the lower pressure is smaller, which is beneficial to reducing the test pressure, and the pressure head 110 of the force sensor can be protected, so that the service life of the pressure head 110 of the force sensor is prolonged.
The sample clamping seat 200 is a component for clamping and fixing the thin plate glass sample 400 and is connected with the base 120 of the universal testing machine 100 in a positioning matching manner; the cartridge body 210 is a main component of the sample-holding cartridge 200, which is used to support the thin plate glass sample 400; the structure of the cartridge body 210 may be various, for example: square, cylindrical, etc.; since the thin plate glass sample 400 has fracture toughness, in order to truly reflect the maximum load force of the thin plate glass sample 400 and ensure the safety of the pressure head 110 of the force sensor, the holder main body 210 is processed into a hollow structure; the holder main body 210 is generally made of a material having a certain strength and a good impact resistance, for example: a plastic, preferably made of a polytetrafluoroethylene material; in order to prevent the accumulation of the glass slag after the thin glass sample 400 is broken, a slag hole 211 communicated with the inner cavity of the holder main body 210 is usually arranged on the side wall thereof; the slag outlets 211 are generally two corresponding.
The circular supporting platform 220 is mainly used for clamping and fixing the thin plate glass sample 400, and is generally made of the same material as the holder main body 210 and is of an integral structure with the holder main body 210; the sample fixing groove 221 formed on the annular supporting platform 220 is an annular groove, which can effectively fix the thin plate glass sample 400 and prevent the thin plate glass sample 400 from sliding off in the testing process; the sample fixing groove 221 is generally sized to fit the thin plate glass sample 400 to be tested, and has a bottom surface capable of supporting the peripheral edges of the thin plate glass sample 400; the sample taking and placing notch 222 is a reserved position of a clamping tool when the thin plate glass sample 400 is placed, and the thin plate glass sample 400 can be conveniently and quickly taken and placed through the notch; the sample taking and placing notch 222 may have various configurations, and is preferably an 3/4 arc notch at one corner of the sample fixing groove 221.
In order to fix the sample holder 200, as shown in fig. 3, the sample holder 200 further includes a positioning base 230 and two fixing members 240 spaced apart from each other on the positioning base 230, and the holder main body 210 is disposed between the two fixing members 240. The positioning base 230 is a carrier for the sample holder 200 and is typically made of a relatively hard material, preferably cemented carbide. The fixing member 240 is mainly used to fix the holder main body 210 to the positioning base 230, and the structure thereof may be various, for example: a "T" shaped structure, a triangular structure, a rectangular structure, etc., preferably a "convex" shaped structure.
In addition to the above, in order to facilitate the positioning and fitting connection of the sample holder 200 and the base 120 of the universal tester 100, the positioning base 230 is provided with a center positioning portion that can be connected to the base 120 of the universal tester 100. The centering portion is usually matched with the centering hole of the base 120, and is positioned and connected by a taper pin, and then the positioning base 230 is connected and fixed with the base 120 by a fastener.
To facilitate adjustment of the position of the sample holder 200, horizontal graduation marks are typically provided on the positioning base 230. The horizontal scale lines are typically 0 o' clock with the center of the positioning base 230.
In order to facilitate the clamping of the holder main body 210 by matching with the holder main body 210, the fixing member 240 is provided with a positioning fixing portion 241 matching with the holder main body 210.
Specifically, the sidewall of the holder main body 210 is further provided with a fixing hole 212 corresponding to the positioning fixing portion 241, and a connecting member for connecting the holder main body 210 and the fixing member 240 together is disposed in the fixing hole 212. By connecting and fixing the holder main body 210, the holder main body 210 can be prevented from moving forward and backward during the test.
The upper pressure lever 300 is used for matching with the pressure head 110 of the force sensor of the universal testing machine 100 so as to test the thin plate glass sample 400; the pressure sensor pressure head 110 can be protected, the pressing contact area of the pressure sensor pressure head and the sheet glass sample 400 is small, and according to the formula that pressure P is force F/area S, the smaller the contact area is, the smaller the required pressure is, and therefore the test pressure is favorably reduced. The upper pressure lever 300 is generally made of a material with higher hardness, preferably made of cemented carbide; the upper pressure lever 300 can be coaxially matched and connected with the force sensor pressure head 110 through a connecting structure 311 at the upper part of the upper section 310 of the pressure lever; the diameter of the upper section 310 of the strut is generally smaller than the diameter of the force sensor ram 110; for optimal assistance, the upper section 310 of the strut is typically made to have a diameter equal to the inner diameter of the lower sleeve of the force sensor ram 110, and the lower section 320 of the strut is 50mm in length and 3mm in diameter. The connecting structure 311 is mainly used for the upper pressure rod 300 to be connected with the force sensor head 110 in a matching manner, and may be various, for example: attachment holes, attachment lugs, attachment threads, and the like.
On the basis of the above, in order to reduce the test error, it is generally required that the parallelism error between the upper end surface of the upper section 310 of the pressure lever and the lower end surface of the lower section 320 of the pressure lever is not more than 0.015 mm.
By utilizing the tool clamp for the pressure resistance test of the sheet glass to assist the universal testing machine 100, the mechanical property of the brittle material of the sheet glass can be effectively tested, and the blank of the existing universal testing machine in the aspect of small-size and sheet glass test application is filled.
As shown in fig. 3, the universal testing machine comprises a force sensor pressure head 110, a base 120 located below the force sensor pressure head 110, and the fixture for testing the sheet glass compressive resistance, wherein a sample clamping seat 200 of the fixture for testing the sheet glass compressive resistance is fixed on the base 120, and an upper pressure rod 300 of the fixture for testing the sheet glass compressive resistance is coaxially connected with the force sensor pressure head 110 through a connecting structure 311.
Claims (10)
1. Sheet metal glass is frock clamp for compressive resistance test, its characterized in that: comprises a sample clamping seat (200) for clamping a sheet glass sample (400) and an upper pressure rod (300) matched with a force sensor pressure head (110) of a universal testing machine (100);
the sample clamping seat (200) comprises a hollow clamping seat main body (210), the top of the clamping seat main body (210) is provided with an opening, an annular supporting platform (220) is arranged at the opening, a sample fixing groove (221) is arranged on the annular supporting platform (220), and a sample taking and placing gap (222) is arranged on the wall of the sample fixing groove (221);
the upper pressure lever (300) comprises an upper pressure lever section (310) and a lower pressure lever section (320) which are coaxially connected together, the diameter of the lower pressure lever section (320) is smaller than that of the upper pressure lever section (310), the upper end surface of the upper pressure lever section (310) is parallel to the lower end surface of the lower pressure lever section (320), the surface roughness Ra of the lower end surface of the lower pressure lever section (320) is less than or equal to 0.8 mu m, and a connecting structure (311) is arranged at the upper part of the upper pressure lever section (310).
2. The tool clamp for testing the pressure resistance of the sheet glass according to claim 1, wherein: the side wall of the holder main body (210) is provided with a slag outlet (211) communicated with the inner cavity of the holder main body.
3. The tool clamp for testing the pressure resistance of the sheet glass according to claim 1, wherein: the sample clamping seat (200) further comprises a positioning base (230) and two fixing pieces (240) arranged on the positioning base (230) at intervals, and the clamping seat main body (210) is arranged between the two fixing pieces (240).
4. The tool clamp for testing the pressure resistance of the sheet glass according to claim 3, wherein: the positioning base (230) is provided with a central positioning part which can be connected with a base (120) of the universal testing machine (100).
5. The tool clamp for testing the pressure resistance of the sheet glass according to claim 3, wherein: the positioning base (230) is provided with horizontal scale marks.
6. The tool clamp for testing the pressure resistance of the sheet glass according to claim 3, wherein: the fixing piece (240) is provided with a positioning fixing part (241) matched with the holder main body (210).
7. The tool clamp for testing the pressure resistance of the sheet glass according to claim 6, wherein: the side wall of the holder main body (210) is also provided with a fixing hole (212) corresponding to the positioning fixing part (241), and a connecting piece for connecting the holder main body (210) and the fixing piece (240) is arranged in the fixing hole (212).
8. The tool clamp for testing the pressure resistance of the sheet glass according to claim 3, wherein: the holder main body (210) is made of polytetrafluoroethylene materials, and the positioning base (230) and the upper pressure rod (300) are made of hard alloy.
9. The tool clamp for testing the pressure resistance of the sheet glass according to any one of claims 1 to 8, wherein: the parallelism error between the upper end surface of the upper section (310) of the pressure lever and the lower end surface of the lower section (320) of the pressure lever is not more than 0.015 mm.
10. Universal testing machine, including force sensor pressure head (110) and base (120) that are located force sensor pressure head (110) below, its characterized in that: the fixture for testing the sheet glass pressure resistance further comprises the fixture for testing the sheet glass pressure resistance, a sample clamping seat (200) of the fixture for testing the sheet glass pressure resistance is fixed on the base (120), and an upper pressure rod (300) of the fixture for testing the sheet glass pressure resistance is coaxially connected with the force sensor pressure head (110) through a connecting structure (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022119140.4U CN213148560U (en) | 2020-09-24 | 2020-09-24 | Frock clamp and universal tester are used in test of sheet metal glass compressive resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022119140.4U CN213148560U (en) | 2020-09-24 | 2020-09-24 | Frock clamp and universal tester are used in test of sheet metal glass compressive resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213148560U true CN213148560U (en) | 2021-05-07 |
Family
ID=75718795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022119140.4U Active CN213148560U (en) | 2020-09-24 | 2020-09-24 | Frock clamp and universal tester are used in test of sheet metal glass compressive resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213148560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010526A (en) * | 2024-04-09 | 2024-05-10 | 索拉特特种玻璃(江苏)股份有限公司 | Four-point bending testing machine for ultra-white rolled glass |
-
2020
- 2020-09-24 CN CN202022119140.4U patent/CN213148560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010526A (en) * | 2024-04-09 | 2024-05-10 | 索拉特特种玻璃(江苏)股份有限公司 | Four-point bending testing machine for ultra-white rolled glass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103091163B (en) | Device for measuring elongation and cross section shrink rate of metal stretching sample through fast clamping | |
| CN213148560U (en) | Frock clamp and universal tester are used in test of sheet metal glass compressive resistance | |
| CN205719811U (en) | A kind of three-point bending performance test frock | |
| CN102759485A (en) | Micro pressure shear experimental device and testing method of mechanical property of fusion welding microcell | |
| CN101281106B (en) | Multi-parameter adjustable press-bending mold with back cartridge measuring apparatus | |
| CN104374361B (en) | Plate creep extensometer | |
| CN201191252Y (en) | Multi-parameter adjustable press-bending mold with back cartridge measuring apparatus | |
| CN100476396C (en) | Pressing lever steady experimental device for electronic universal testing machine | |
| CN1330461C (en) | Mechanism for fast holding thin sheet | |
| EP3543641B1 (en) | Gage and method for detecting diameter of bolt hole back socket | |
| CN107976362B (en) | Three-point bending fixture | |
| CN218601025U (en) | Universal testing machine stretching clamp | |
| CN216594606U (en) | Ceramic rod hardness detection device | |
| CN212512985U (en) | Crane hook torsional deformation measuring device | |
| CN114993838A (en) | Integral type normal position pressurization diamond anvil cell press | |
| CN111289357B (en) | Clamp device for vacuum high-temperature indentation creep test | |
| CN217237405U (en) | Test piece preparation device for detecting normal-temperature anti-bending bonding strength of refractory mortar | |
| CN210603073U (en) | Rapid measuring tool for height of wave spring | |
| CN220018367U (en) | Aluminum profile size measurement equipment | |
| CN214842911U (en) | Workpiece height measuring device | |
| CN218363412U (en) | Universal quick-change multi-station self-clamping tool | |
| CN217484066U (en) | Auxiliary tool for three-point bending test of hard alloy | |
| CN211438485U (en) | Multi-purpose resonance bar welded platform | |
| CN210702716U (en) | Drilling fixture for left and right air chamber support bases | |
| CN220188204U (en) | NOL ring paster auxiliary fixtures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |