CN216669516U - Novel three-point bending fixture - Google Patents
Novel three-point bending fixture Download PDFInfo
- Publication number
- CN216669516U CN216669516U CN202122930192.4U CN202122930192U CN216669516U CN 216669516 U CN216669516 U CN 216669516U CN 202122930192 U CN202122930192 U CN 202122930192U CN 216669516 U CN216669516 U CN 216669516U
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- sliding
- placing table
- screw rod
- side wall
- sliding groove
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- 238000013001 point bending Methods 0.000 title claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 25
- 238000005452 bending Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009778 extrusion testing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a novel three-point bending fixture which comprises two symmetrically arranged fixtures and extrusion blocks and further comprises symmetrically arranged support columns, wherein top plates are connected to the upper ends of the two support columns, supporting legs are connected to the lower ends of the two support columns, a detachable placing table is connected to the inner sides of the two support columns, a first sliding groove communicated with the two sides of the placing table (6) is connected to the upper side wall of the placing table, a screw rod is rotatably arranged at the two ends of the first sliding groove, a rotating seat rotatably sleeved on the outer side of the screw rod is connected to the inside of the first sliding groove, a driving mechanism for rotating the screw rod is arranged on the placing table, a first sliding block is connected to the lower ends of the two fixtures, the first sliding blocks are sleeved at the two ends of the screw rod through threads, and the first sliding blocks abut against the inner walls of the first sliding grooves. Compared with the prior art, the utility model has the advantages that: the precision of fixing and extruding the test object is higher, the clamp is more convenient to replace according to the requirement, and the test object is convenient to detect.
Description
Technical Field
The utility model relates to the field of clamping, in particular to a novel three-point bending clamp.
Background
The material bending test is a test for measuring the mechanical property of the material when bearing bending load, can measure the bending strength performance index of the material, and is one of the basic methods for the material mechanical property test. The three-point bending experimental device comprises an extrusion block and two clamps, the sectional area of a sample to be tested is rectangular and long, two ends of the sample to be tested are supported on the clamps, and pressure is applied downwards by the force application of the extrusion block, so that the bending experiment of the sample is completed, and the mechanical property of the material is measured. At present, although the three-point bending experimental device has various types, the following problems are generally existed, the testing precision is poor, and the clamp is not convenient to replace.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems and provides a novel three-point bending clamp which is convenient to test with high precision and replace.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a novel three-point bending fixture comprises two symmetrically arranged fixtures and extrusion blocks, and also comprises symmetrically arranged support columns, wherein the upper ends of the two support columns are connected and provided with a top plate, the lower ends of the two support columns are respectively connected and provided with a support leg, the inner sides of the two support columns are connected and provided with a detachable placing table, the upper side wall of the placing table is connected and provided with a first sliding groove communicated with the two sides of the placing table, a screw rod is arranged in the first sliding groove in a rotating manner, a rotating seat sleeved on the outer side of the screw rod is connected and provided with a rotating sleeve in the first sliding groove, the placing table is provided with a driving mechanism for rotating the screw rod, the lower ends of the two fixtures are respectively connected and provided with a first sliding block, the two first sliding blocks are sleeved on the outer sides of the two ends of the screw rod through threads, the first sliding blocks are abutted against the inner walls of the first sliding grooves, the inner sides of the upper ends of the two fixtures are respectively provided with a fixing groove, and the outer sides of the two support columns are sleeved with a lifting plate in a sliding manner, the side wall connection of going up of roof is equipped with electric putter, two electric putter's output all runs through the roof and is connected with the last side wall of lifter plate, the lower side wall connection of lifter plate is equipped with spout two, the fixed fixing base that sets up in two both sides of spout that is equipped with of lifter plate downside, two connect between the fixing base and be equipped with the slip post, the upper end connection of extrusion piece is equipped with the cover and establishes the slider two that just offsets with two inner walls of spout outside the slip post the lower extreme connection of extrusion piece is equipped with pressure sensor, the last side wall connection of roof is equipped with the controller, pressure sensor and two electric putter and controller electric connection.
As an improvement, the inner sides of the two supporting legs are respectively connected with a supporting plate, and the lower sides of the two supporting plates are provided with a second bolt which is fixed with the lower side wall of the placing table through threads in a penetrating mode.
As an improvement, the driving mechanism comprises a driving motor, the driving motor is arranged on the lower side wall of the placing table, the output end of the driving motor extends to the first sliding groove to be connected with a first bevel gear, the outer side of the screw rod is connected with a second bevel gear meshed with the first bevel gear, and the driving motor is electrically connected with the controller.
As an improvement, the thread directions of the two ends of the screw rod are opposite.
As an improvement, the outer side of the placing table is provided with scales.
As an improvement, the inner sides of the two supporting legs are connected and provided with reinforcing rods.
As an improvement, the upper side wall of the lifting plate is provided with a fixing hole communicated with the second sliding groove, a first bolt which is in sliding and abutting against the upper side wall of the lifting plate penetrates through the fixing hole, and the lower end of the first bolt is fixed with the upper end of the second sliding block through threads.
Compared with the prior art, the utility model has the advantages that:
1. slide in spout one through slider one, slider two slides in spout two, and anchor clamps and extrusion piece are difficult to rock when sliding, and the in-process of the test article of carrying out the fixing is more firm at the centre gripping test, and it is higher to carry out the precision of fixing the extrusion test to the test article.
2. The placing table is convenient to detach quickly by rotating the second bolt, the first sliding block can slide out in the first sliding groove conveniently when the screw rod is rotated, and therefore the first clamp is convenient to detach, and the clamp is convenient to detach and convenient to replace according to requirements.
3. The second sliding block slides outside the sliding column, so that the test of extruding and bending can be conveniently carried out at different positions on a test article according to requirements, and the position of the second sliding block can be conveniently fixed by rotating the first bolt.
4. When placing the test article in the fixed slot between anchor clamps, extrude the test article when the extrusion piece pushes down, carry out the record through the crooked deformation degree of observing the test article and the numerical value of pressure sensor response and do the contrast of data, be convenient for detect test article bending strength.
Drawings
Fig. 1 is a schematic structural diagram of a novel three-point bending fixture of the utility model.
FIG. 2 is a schematic diagram of the position A of the novel three-point bending fixture of the present invention.
FIG. 3 is a schematic diagram of a position structure of a novel three-point bending fixture B.
Fig. 4 is a schematic structural diagram of the outer side of the novel three-point bending fixture placing table.
As shown in the figure: 1. a clamp; 2. extruding the block; 3. a support pillar; 4. a top plate; 5. supporting legs; 6. a placing table; 7. a first sliding chute; 8. a screw; 9. a first sliding block; 10. fixing grooves; 11. a lifting plate; 12. an electric push rod; 13. a second chute; 14. A sliding post; 15. a second sliding block; 16. a controller; 17. a second bolt; 18. a drive motor; 19. a reinforcing bar; 20. a fixing hole; 21. a first bolt; 22. rotating the base; 23. a support plate; 24. a pressure sensor.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
Referring to the attached drawings 1-4, a novel three-point bending fixture comprises two symmetrically arranged fixtures 1 and extrusion blocks 2, and further comprises symmetrically arranged support columns 3, wherein the upper ends of the two support columns 3 are connected with a top plate 4, the lower ends of the two support columns 3 are both connected with support legs 5, the inner sides of the two support columns 3 are connected with a detachable placing table 6, the upper side wall of the placing table 6 is connected with a first chute 7 communicated with the two sides of the placing table 6, a screw 8 is rotatably arranged in the first chute 7, a rotating seat 22 rotatably sleeved on the outer side of the screw 8 is connected in the first chute 7, a driving mechanism for rotating the screw 8 is arranged on the placing table 6, the lower ends of the two fixtures 1 are both connected with first sliding blocks 9, the first sliding blocks 9 are sleeved on the outer sides of the two ends of the screw 8 through threads, and the first sliding blocks 9 are abutted against the inner walls of the first chute 7, the inner sides of the upper ends of the two clamps 1 are respectively provided with a fixing groove 10, the outer sides of the two supporting columns 3 are sleeved with a lifting plate 11 in a sliding manner, the upper side wall of the top plate 4 is connected with electric push rods 12, the output ends of the two electric push rods 12 penetrate through the top plate 4 and are connected with the upper side wall of the lifting plate 11, the lower side wall of the lifting plate 11 is connected with a second sliding chute 13, the lower side of the lifting plate 11 is fixedly provided with fixed seats arranged at two sides of the second sliding chute 13, a sliding column 14 is connected between the two fixed seats, the upper end of the extrusion block 2 is connected with a second sliding block 15 which is sleeved outside the sliding column 14 and is propped against the inner wall of the second sliding groove 13, the lower end of the extrusion block 2 is connected with a pressure sensor 24, the upper side wall of the top plate 4 is connected with a controller 16, the pressure sensor 24 and the two electric push rods 12 are electrically connected with the controller 16.
Two the inboard of supporting legs 5 is all connected and is equipped with backup pad 23, two the downside of backup pad 23 runs through be equipped with place the lower lateral wall of platform 6 through two 17 of bolt of thread tightening, is convenient for pull down two 17 of bolt through rotating two 17 of bolt, will place platform 6 and pull down, more conveniently pull down anchor clamps 1 on screw rod 8 when rotating screw rod 8.
The driving mechanism comprises a driving motor 18, the driving motor 18 is arranged on the lower side wall of the placing table 6, the output end of the driving motor 18 extends into the first chute 7 to be connected with a first bevel gear, the outer side of the screw rod 8 is connected with a second bevel gear meshed with the first bevel gear, the driving motor 18 is electrically connected with the controller 16, and the first bevel gear and the second bevel gear are matched to inching to drive the screw rod 8 to rotate by opening the driving motor 18.
The thread directions of the two ends of the screw rod 8 are opposite, so that the two first sliding blocks 9 are driven to move towards or away from each other through the rotation of the screw rod 8.
The outside of placing the platform 6 is equipped with the scale, can observe the extrusion piece and observe the length of examination article convenient to record in the position of placing on the platform 6.
The inner sides of the two supporting legs 5 are connected and provided with reinforcing rods 19, so that the two supporting legs 5 are connected and fixed more stably.
The upper side wall of the lifting plate 11 is provided with a fixing hole 20 communicated with the second sliding groove 13, a first bolt 21 which is slidably abutted to the upper side wall of the lifting plate 11 penetrates through the fixing hole 20, the lower end of the first bolt 21 is fixed with the upper end of the second slider 15 through threads, when the second slider 15 slides outside the sliding column 14, different positions of the extrusion block 2 on a test object can be extruded, a comparison test is convenient to perform, the first bolt 21 is abutted to the upper side wall of the lifting plate 11 by rotating the first bolt 21, and the second slider 15 is conveniently fixed at the corresponding position outside the sliding column 14 through the first bolt 21.
The working principle of the utility model is as follows: a test product to be detected is placed on the inner sides of fixing grooves 10 at the upper ends of two clamps 1, rotation of a screw rod 8 can be driven by rotation of a first bevel gear and a second bevel gear by means of rotation of a driving motor 18, the screw rod 8 rotates more stably on a rotating seat 22, a first slider 9 is driven to slide on the outer side of the screw rod 8, the clamps 1 at the upper ends of the first sliders 9 can be adjusted to move oppositely, a test piece to be tested is fixed by clamping the fixing grooves 10, a lifting plate 11 is pushed to descend by opening an electric push rod 12, the extrusion block 2 is pressed down by means of a fixing seat, a sliding column 14 and a second slider 15, the test piece is extruded by a pressure sensor 24 on the extrusion block 2, the test piece is extruded and bent, and recording comparison is carried out by different bending degrees and numerical values monitored by the pressure sensor, the test product which is convenient for detection, the lifting plate 11 can lift and slide more stably outside the supporting column 3,
slide in the outside of slip post 14 and the inboard of spout two 13 through slider two 15, the gliding more firm of slider two 15, be convenient for adjust the extrusion piece 2 position of fixing on slider two 15 and adjust, it is fixed to support with bolt one 21 and lifter plate 11's last side wall through rotating bolt one 21, be convenient for carry out the position of fixed extrusion piece 2, be convenient for extrude the test to the different positions of test article, pull down through rotating bolt two 17, be convenient for pull down place platform 6 and be convenient for pull down slider 9 and change at screw rod 8 both ends when screw rod 8 rotates.
The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described, and the content not described in detail in the specification belongs to the prior art known by persons skilled in the art.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. The utility model provides a novel three point bending anchor clamps, includes that two symmetries set up anchor clamps (1) and extrusion piece (2), its characterized in that: the fixture comprises two supporting columns (3) which are symmetrically arranged, wherein the upper ends of the two supporting columns (3) are connected and provided with a top plate (4), the lower ends of the two supporting columns (3) are respectively connected and provided with a supporting leg (5), the inner sides of the two supporting columns (3) are connected and provided with a detachable placing table (6), the upper side wall of the placing table (6) is connected and provided with a first sliding groove (7) communicated with the two sides of the placing table (6), the first sliding groove (7) is rotatably provided with a screw rod (8), the first sliding groove (7) is internally connected and provided with a rotating seat (22) which is rotatably sleeved on the outer side of the screw rod (8), the placing table (6) is provided with a driving mechanism for rotating the screw rod (8), the lower ends of the two fixtures (1) are respectively connected and provided with a first sliding block (9), the two sliding blocks (9) are sleeved on the outer sides of the two ends of the screw rod (8) through threads, and the sliding blocks (9) are abutted to the inner walls of the first sliding groove (7), the inner sides of the upper ends of the two fixtures (1) are respectively provided with a fixing groove (10), the outer sides of the two support columns (3) are respectively provided with a lifting plate (11) in a sliding manner, the upper side wall of the top plate (4) is connected with an electric push rod (12), the output ends of the two electric push rods (12) are respectively connected with the upper side wall of the top plate (4) and the lifting plate (11) in a penetrating manner, the lower side wall of the lifting plate (11) is connected with a second sliding groove (13), fixing seats arranged on the two sides of the second sliding groove (13) are fixedly arranged on the lower side of the lifting plate (11), a sliding column (14) is connected between the two fixing seats, the upper end of the extrusion block (2) is connected with a second sliding block (15) which is sleeved on the outer side of the sliding column (14) and is abutted to the inner wall of the second sliding groove (13), the lower end of the extrusion block (2) is connected with a pressure sensor (24), and the upper side wall of the top plate (4) is connected with a controller (16), the pressure sensor (24) and the two electric push rods (12) are electrically connected with the controller (16).
2. The novel three-point bending fixture of claim 1, wherein: the inner sides of the two supporting legs (5) are respectively provided with a supporting plate (23), and the lower side of each supporting plate (23) is provided with a second bolt (17) which is fixed with the lower side wall of the placing table (6) through threads in a penetrating mode.
3. The novel three-point bending fixture of claim 1, wherein: the driving mechanism comprises a driving motor (18), the driving motor (18) is arranged on the lower side wall of the placing table (6), the output end of the driving motor (18) extends into the first sliding groove (7) to be connected with a first bevel gear, the outer side of the screw rod (8) is connected with a second bevel gear meshed with the first bevel gear, and the driving motor (18) is electrically connected with the controller (16).
4. A novel three-point bending fixture according to claim 3, wherein: the thread directions of the two ends of the screw rod (8) are opposite.
5. The novel three-point bending fixture of claim 1, wherein: scales are arranged on the outer side of the placing table (6).
6. The novel three-point bending fixture of claim 1, wherein: the inner sides of the two supporting legs (5) are connected with a reinforcing rod (19).
7. The novel three-point bending fixture of claim 1, wherein: the upper side wall of the lifting plate (11) is provided with a fixing hole (20) communicated with the second sliding groove (13), a first bolt (21) which is in sliding and abutting against the upper side wall of the lifting plate (11) penetrates through the fixing hole (20), and the lower end of the first bolt (21) is fixed with the upper end of the second sliding block (15) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122930192.4U CN216669516U (en) | 2021-11-26 | 2021-11-26 | Novel three-point bending fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122930192.4U CN216669516U (en) | 2021-11-26 | 2021-11-26 | Novel three-point bending fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216669516U true CN216669516U (en) | 2022-06-03 |
Family
ID=81790530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122930192.4U Expired - Fee Related CN216669516U (en) | 2021-11-26 | 2021-11-26 | Novel three-point bending fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216669516U (en) |
-
2021
- 2021-11-26 CN CN202122930192.4U patent/CN216669516U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220603 |