CN217484066U - Auxiliary tool for three-point bending test of hard alloy - Google Patents
Auxiliary tool for three-point bending test of hard alloy Download PDFInfo
- Publication number
- CN217484066U CN217484066U CN202221333083.2U CN202221333083U CN217484066U CN 217484066 U CN217484066 U CN 217484066U CN 202221333083 U CN202221333083 U CN 202221333083U CN 217484066 U CN217484066 U CN 217484066U
- Authority
- CN
- China
- Prior art keywords
- round bar
- round
- bar groove
- groove
- rod
- 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 relates to an auxiliary tool for hard alloy three-point bending test, which comprises a lower die holder, two supporting round bars, a connecting rod, an upper die pressure head, a loading round bar and a mounting component; a first round bar groove, a second round bar groove and a third round bar groove are formed in the lower die holder; the two supporting round bars can be respectively inserted into the first round bar groove or the second round bar groove or the third round bar groove; the connecting rod is arranged at the upper part of the upper die pressing head, and a fourth round bar groove is formed in the lower part of the upper die pressing head; the loading round rod is inserted into the fourth round rod groove and is positioned through the mounting assembly. The test tool has the advantages that the test tool is suitable for the sizes of three samples according to the national bending strength test standard of hard alloy, the test tool conforms to the national standard, the die pressing head and the lower die holder can be made of common die steel which is easy to process, and the manufacturing cost is reduced. The loading round bar and the supporting round bar can select a hard alloy bar with higher tungsten carbide content than a sample to be tested, the service life of the die is prolonged, and the scale can simultaneously meet the positioning of the samples with two spans, and has the advantages of convenience in use and the like.
Description
Technical Field
The utility model relates to an assist utensil for carbide three point bending test.
Background
At present, a universal testing machine is generally provided with auxiliary tools for testing mechanical properties such as tension, compression, bending and the like, the tension and compression auxiliary tools have good universality for various samples, but the bending test is different, and matched auxiliary tools need to be selected according to sample materials. As for the hard alloy material, the strength and the hardness are much higher than those of common metal, and the common metal bending assistive device cannot meet the use requirement. The contact support part of the auxiliary tool for the three-point bending test of the hard alloy is made of the tungsten carbide hard alloy, so that the test result is prevented from being influenced by plastic deformation generated in the stress application process. The special material of the assistive device greatly improves the manufacturing cost, and the supporting contact part is easy to damage, so that the assistive device for bending test of the hard alloy in the market is expensive, complex in structure and not easy to replace. Meanwhile, it is difficult for the user to accurately coincide the center of the sample with the centers of the two supporting points during the lofting test, thereby affecting the test result.
Disclosure of Invention
The utility model aims at overcoming prior art not enough and providing an assist utensil for carbide three point bending test, according to carbide bending strength test national standard, be fit for the size of three kinds of samples, accord with national standard, the mould pressure head can select for use workable ordinary mould steel with the die holder, has reduced manufacturing cost. The loading round bar and the supporting round bar can be hard alloy bars with tungsten carbide content higher than that of the sample to be tested, the service life of the die is prolonged, the scale can simultaneously meet the positioning of the samples with two spans, and the use is convenient.
In order to achieve the above object, the present invention provides an auxiliary tool for three-point bending test of cemented carbide, including:
a lower die holder; a first round bar groove with an upward opening, a second round bar groove with an upward opening and a third round bar groove with an upward opening are sequentially arranged on the lower die base, the distance between the first round bar groove and the second round bar groove is 14.5mm +/-0.5 mm, and the distance between the second round bar groove and the third round bar groove is 30mm +/-0.5 mm;
two supporting round bars; the two supporting round bars can be respectively inserted into the first round bar groove, the second round bar groove or the third round bar groove, and the upper parts of the two supporting round bars extend out of the corresponding grooves;
a connecting rod and an upper die press head; the connecting rod is arranged at the upper part of the upper die pressing head, and a fourth round bar groove with a downward opening is formed in the lower part of the upper die pressing head; and
loading a round bar and mounting components; the loading round rod is inserted into the fourth round rod groove and positioned through the mounting assembly, and the lower portion of the loading round rod extends out of the fourth round rod groove.
In this embodiment, a scale is further included; the lower part of the scale is provided with a positioning bulge, the positioning bulge can be respectively inserted into the first round bar groove or the third round bar groove, and the upper part of the scale is higher than the upper part of the supporting round bar.
In this embodiment, the installation component includes two bolts and two installation poles be equipped with two screw holes on the last mould pressure head the top of installation connecting rod is equipped with rectangular hole, is equipped with rectangular hole down in the below of installation connecting rod, thereby the bolt passes behind the rectangular hole and makes the installation pole location with the screw thread fit that corresponds, thereby the both ends of loading pole are located corresponding rectangular hole down and make the loading pole location.
In this embodiment, two avoidance grooves are formed in the lower die base, and the two avoidance grooves are respectively located between the first round bar groove and the second round bar groove and between the second round bar groove and the third round bar groove.
Compared with the prior art, the utility model the advantage do: according to the national standard of the bending strength test of the hard alloy, the test device is suitable for the sizes of three samples and accords with the national standard, and the die pressing head and the lower die holder can be made of common die steel which is easy to process, so that the manufacturing cost is reduced. The loading round bar and the supporting round bar can be selected from hard alloy bars with tungsten carbide content higher than that of a sample to be tested, the service life of the die is prolonged, the scale can simultaneously meet the positioning of the samples with two spans, and the use is convenient.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is an exploded view of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, the terms "upper" and "lower" indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
Example one
As shown in fig. 1 and 2, the auxiliary tool for the three-point bending test of cemented carbide includes:
a lower die holder 7; a first round bar groove 71 with an upward opening, a second round bar groove 72 with an upward opening and a third round bar groove 73 with an upward opening are sequentially arranged on the lower die holder 7, the distance between the first round bar groove 71 and the second round bar groove 72 is 15mm, and the distance between the second round bar groove 72 and the third round bar groove 73 is 30.5 mm;
two supporting round bars 6; the two supporting round rods 6 can be respectively inserted into the first round rod groove 71, the second round rod groove 72 or the third round rod groove 73, and the upper parts of the two supporting round rods 6 extend out of the corresponding grooves;
a connecting rod 1 and an upper die press head 2; the connecting rod 1 is arranged at the upper part of the upper die pressing head 2, and a fourth round bar groove 21 with a downward opening is formed in the lower part of the upper die pressing head 2; and
loading the round bar 5 and mounting components; the loading round rod 5 is inserted into the fourth round rod groove 21 and is positioned by the mounting assembly, and the lower part of the loading round rod 5 extends out of the fourth round rod groove 21.
When in use, the first round bar groove 71, the second round bar groove 72 and the third round bar groove 73 are used for placing the supporting round bar 6, so that the auxiliary tool meets the national standard of the bending strength test of hard alloy and has three sample sizes; go up die head 2 and die holder 7 and can choose for use workable ordinary mould steel, reduced manufacturing cost, loading pole 5 and support pole 6 can choose for use than the carbide stick that the sample tungsten carbide content that awaits measuring is higher, extension mould life, when supporting pole 6 because of fatigue wear, can directly purchase commercial carbide pole and change easy operation.
In the present embodiment, a scale 8 is further included; a positioning protrusion 81 is arranged at the lower part of the scale 8, the positioning protrusion 81 can be respectively inserted into the first round bar groove 71 or the third round bar groove 73, and the upper part of the scale 8 is higher than the upper part of the supporting round bar 6. When in use, the scale 8 can simultaneously meet the positioning of samples with two spans. When one span is used, the two supporting round rods 6 are respectively and correspondingly placed into the two adjacent grooves, the scale 8 is clamped into the other groove, and the sample can be directly contacted with one end of the scale 8 at the moment so as to position the sample.
In this embodiment, the mounting assembly includes two bolts 3 and two mounting rods 4, two screw holes 22 are provided on the upper die pressing head 2, an upper elongated hole 41 is provided above the mounting connecting rod 4, a lower elongated hole 42 is provided below the mounting connecting rod 4, the bolt 3 passes through the upper elongated hole 41 and is in threaded fit with the corresponding screw hole 22, so as to position the mounting rod 4, and two end portions of the loading round rod 6 are located on the corresponding lower elongated hole 42, so as to position the loading round rod 5.
In this embodiment, the lower die base 7 is provided with two avoiding grooves 74, and the two avoiding grooves 74 are respectively located between the first round bar groove 71 and the second round bar groove 72, and between the second round bar groove 72 and the third round bar groove 73.
Example two
As shown in fig. 1 and 2, the auxiliary tool for the three-point bending test of cemented carbide includes:
a lower die holder 7; a first round bar groove 71 with an upward opening, a second round bar groove 72 with an upward opening and a third round bar groove 73 with an upward opening are sequentially arranged on the lower die holder 7, the distance between the first round bar groove 71 and the second round bar groove 72 is 14mm, and the distance between the second round bar groove 72 and the third round bar groove 73 is 29.5 mm;
two supporting round bars 6; the two supporting round bars 6 can be respectively inserted into the first round bar groove 71, the second round bar groove 72 or the third round bar groove 73, and the upper parts of the two supporting round bars 6 extend out of the corresponding grooves;
a connecting rod 1 and an upper die press head 2; the connecting rod 1 is arranged at the upper part of the upper die pressing head 2, and a fourth round bar groove 21 with a downward opening is formed in the lower part of the upper die pressing head 2; and
loading the round bar 5 and mounting the assembly; the loading round rod 5 is inserted into the fourth round rod groove 21 and is positioned by the mounting assembly, and the lower part of the loading round rod 5 extends out of the fourth round rod groove 21.
When in use, the first round bar groove 71, the second round bar groove 72 and the third round bar groove 73 are used for placing the supporting round bar 6, so that the auxiliary tool meets the national standard of the bending strength test of hard alloy and has three sample sizes; go up mould pressure head 2 and die holder 7 and can select for use workable ordinary mould steel, reduced manufacturing cost, loading pole 5 and support pole 6 can select for use than the carbide stick that the sample tungsten carbide content that awaits measuring is higher, extension mould life, when supporting pole 6 because of fatigue wear, can directly purchase commercial carbide pole and change easy operation.
In the present embodiment, a scale 8 is further included; a positioning protrusion 81 is arranged at the lower part of the scale 8, the positioning protrusion 81 can be respectively inserted into the first round bar groove 71 or the third round bar groove 73, and the upper part of the scale 8 is higher than the upper part of the supporting round bar 6. When in use, the scale 8 can simultaneously meet the positioning of samples with two spans. When one span is used, the two supporting round rods 6 are respectively and correspondingly placed into the two adjacent grooves, the scale 8 is clamped into the other groove, and the sample can be directly contacted with one end of the scale 8 at the moment so as to position the sample.
In this embodiment, the mounting assembly includes two bolts 3 and two mounting rods 4, two screw holes 22 are provided on the upper die pressing head 2, an upper elongated hole 41 is provided above the mounting connecting rod 4, a lower elongated hole 42 is provided below the mounting connecting rod 4, the bolt 3 passes through the upper elongated hole 41 and is in threaded fit with the corresponding screw hole 22, so as to position the mounting rod 4, and two end portions of the loading round rod 6 are located on the corresponding lower elongated hole 42, so as to position the loading round rod 5.
In this embodiment, the lower die base 7 is provided with two avoiding grooves 74, and the two avoiding grooves 74 are respectively located between the first round bar groove 71 and the second round bar groove 72, and between the second round bar groove 72 and the third round bar groove 73.
EXAMPLE III
As shown in fig. 1 and 2, the auxiliary tool for the three-point bending test of cemented carbide includes:
a lower die holder 7; a first round bar groove 71 with an upward opening, a second round bar groove 72 with an upward opening and a third round bar groove 73 with an upward opening are sequentially arranged on the lower die holder 7, the distance between the first round bar groove 71 and the second round bar groove 72 is 14.5mm, and the distance between the second round bar groove 72 and the third round bar groove 73 is 30 mm;
two supporting round bars 6; the two supporting round rods 6 can be respectively inserted into the first round rod groove 71, the second round rod groove 72 or the third round rod groove 73, and the upper parts of the two supporting round rods 6 extend out of the corresponding grooves;
a connecting rod 1 and an upper die press head 2; the connecting rod 1 is arranged at the upper part of the upper die pressing head 2, and a fourth round bar groove 21 with a downward opening is formed in the lower part of the upper die pressing head 2; and
loading the round bar 5 and mounting components; the loading round rod 5 is inserted into the fourth round rod groove 21 and is positioned by the mounting assembly, and the lower part of the loading round rod 5 extends out of the fourth round rod groove 21.
When in use, the first round bar groove 71, the second round bar groove 72 and the third round bar groove 73 are used for placing the supporting round bar 6, so that the auxiliary tool meets the national standard of the bending strength test of hard alloy and has three sample sizes; go up mould pressure head 2 and die holder 7 and can select for use workable ordinary mould steel, reduced manufacturing cost, loading pole 5 and support pole 6 can select for use than the carbide stick that the sample tungsten carbide content that awaits measuring is higher, extension mould life, when supporting pole 6 because of fatigue wear, can directly purchase commercial carbide pole and change easy operation.
In the present embodiment, a scale 8 is further included; a positioning protrusion 81 is arranged at the lower part of the scale 8, the positioning protrusion 81 can be respectively inserted into the first round bar groove 71 or the third round bar groove 73, and the upper part of the scale 8 is higher than the upper part of the supporting round bar 6. When in use, the scale 8 can simultaneously meet the positioning of samples with two spans. When one span is used, the two supporting round rods 6 are respectively and correspondingly placed into the two adjacent grooves, the scale 8 is clamped into the other groove, and the sample can be directly contacted with one end of the scale 8 at the moment so as to position the sample.
In this embodiment, the mounting assembly includes two bolts 3 and two mounting rods 4, two screw holes 22 are provided on the upper die pressing head 2, an upper elongated hole 41 is provided above the mounting connecting rod 4, a lower elongated hole 42 is provided below the mounting connecting rod 4, the bolt 3 passes through the upper elongated hole 41 and then is in threaded fit with the corresponding screw hole 22, so that the mounting rod 4 is positioned, and the two end portions of the loading round rod 6 are located on the corresponding lower elongated hole 42, so that the loading round rod 5 is positioned.
In this embodiment, the lower die base 7 is provided with two avoiding grooves 74, and the two avoiding grooves 74 are respectively located between the first round bar groove 71 and the second round bar groove 72, and between the second round bar groove 72 and the third round bar groove 73.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention.
Claims (4)
1. An assistive device for three-point bending test of hard alloy is characterized by comprising:
a lower die holder (7); a first round bar groove (71) with an upward opening, a second round bar groove (72) with an upward opening and a third round bar groove (73) with an upward opening are sequentially arranged on the lower die holder (7), the distance between the first round bar groove (71) and the second round bar groove (72) is 14.5mm +/-0.5 mm, and the distance between the second round bar groove (72) and the third round bar groove (73) is 30mm +/-0.5 mm;
two supporting round bars (6); the two supporting round rods (6) can be respectively inserted into the first round rod groove (71), the second round rod groove (72) or the third round rod groove (73), and the upper parts of the two supporting round rods (6) extend out of the corresponding grooves;
a connecting rod (1) and an upper die press head (2); the connecting rod (1) is installed on the upper portion of the upper die pressing head (2), and a fourth round bar groove (21) with a downward opening is formed in the lower portion of the upper die pressing head (2); and
a loading round bar (5) and a mounting component; the loading round rod (5) is inserted into the fourth round rod groove (21) and is positioned through the mounting assembly, and the lower portion of the loading round rod (5) extends out of the fourth round rod groove (21).
2. An aid for three-point bending testing of cemented carbide according to claim 1, characterised in that it further comprises a scale (8); the lower part of the scale (8) is provided with a positioning bulge (81), the positioning bulge (81) can be respectively inserted into the first round bar groove (71) or the third round bar groove (73), and the upper part of the scale (8) is higher than the upper part of the supporting round bar (6).
3. The auxiliary tool for the three-point bending test of the hard alloy according to claim 1, wherein the mounting assembly comprises two bolts (3) and two mounting rods (4), two screw holes (22) are formed in the upper die pressing head (2), an upper strip hole (41) is formed above the mounting rods (4), a lower strip hole (42) is formed below the mounting rods (4), the bolts (3) penetrate through the upper strip hole (41) and then are in threaded fit with the corresponding screw holes (22) so as to position the mounting rods (4), and two end portions of the loading round rod (5) are located on the corresponding lower strip holes (42) so as to position the loading round rod (5).
4. The auxiliary tool for the three-point bending test of the hard alloy according to claim 1, wherein two avoidance grooves (74) are formed in the lower die holder (7), and the two avoidance grooves (74) are respectively located between the first round bar groove (71) and the second round bar groove (72) and between the second round bar groove (72) and the third round bar groove (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221333083.2U CN217484066U (en) | 2022-05-31 | 2022-05-31 | Auxiliary tool for three-point bending test of hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221333083.2U CN217484066U (en) | 2022-05-31 | 2022-05-31 | Auxiliary tool for three-point bending test of hard alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217484066U true CN217484066U (en) | 2022-09-23 |
Family
ID=83312751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221333083.2U Active CN217484066U (en) | 2022-05-31 | 2022-05-31 | Auxiliary tool for three-point bending test of hard alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217484066U (en) |
-
2022
- 2022-05-31 CN CN202221333083.2U patent/CN217484066U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217484066U (en) | Auxiliary tool for three-point bending test of hard alloy | |
| JP3131241U (en) | Vise and material testing machine | |
| CN218601025U (en) | Universal testing machine stretching clamp | |
| CN210549344U (en) | Wheel hub locating pin moulding-die | |
| CN107976362B (en) | Three-point bending fixture | |
| CN213274756U (en) | Force measurement auxiliary tool | |
| CN205376318U (en) | Electric capacity stitch L shape forming device | |
| CN210773753U (en) | Adjustable device for positioning block of automobile checking fixture | |
| CN210059875U (en) | Drilling tool for wheel valve hole | |
| CN112255091A (en) | Hardness meter tray for detecting thin steel plate and detection method thereof | |
| CN110666723A (en) | Multiple pressing block type positioning jig | |
| CN215065733U (en) | Clamping device for Z-direction tensile test sample of metal material | |
| CN221350944U (en) | Extensometer device for detecting foil | |
| CN218512196U (en) | Improved generation metal fastener testing arrangement | |
| CN211940641U (en) | Vortex air compressor machine connecting lever bearing pressure equipment frock | |
| CN110068500B (en) | Limit attenuation rate testing mechanism | |
| CN216208010U (en) | Workpiece detection jig | |
| CN217665793U (en) | A mould for bending center quick replacement | |
| CN220136185U (en) | Hand-held type external diameter gauge | |
| CN213956174U (en) | Size detection jig | |
| CN221811530U (en) | Accurate thickness test tool | |
| CN211361995U (en) | Metal analysis detects with anchor clamps of impressing | |
| CN210893591U (en) | Radial rigidity test device for prestressed metal corrugated pipe | |
| CN211602879U (en) | Spectrum appearance sample anchor clamps | |
| CN211012732U (en) | Porous frock that detects of ABS valve body terminal surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |