CN217786716U - Equipment for rigidity test of rigid filamentous sample - Google Patents
Equipment for rigidity test of rigid filamentous sample Download PDFInfo
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- CN217786716U CN217786716U CN202220964884.2U CN202220964884U CN217786716U CN 217786716 U CN217786716 U CN 217786716U CN 202220964884 U CN202220964884 U CN 202220964884U CN 217786716 U CN217786716 U CN 217786716U
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Abstract
The utility model provides a device for rigidity test of rigid filamentous samples, which comprises a bottom plate, a limiting block, a movable sliding block, a fixed block, a pressing block and a pressure test system; the bottom plate is provided with a sliding groove, and the limiting block, the movable sliding block and the fixing block are arranged in the sliding groove; the pressing block is arranged on the bottom plate; the limiting block is provided with a pressure sensor and is connected with a pressure testing system. The utility model discloses a rigidity characteristic for testing filamentous sample, under the different bending condition of can feeding back, filamentous sample rigidity power, bending curvature radius' S size, and remove remaining effective length S behind the constraint, obtain the characteristic of the rigidity power of different filamentous samples, the rigidity size of analysis different kinds of samples, and the stability and the rigidity characteristic of the same kind of sample for guide welding wire production process and as the analysis foundation of welding process welding wire resistance.
Description
Technical Field
The utility model belongs to the technical field of filiform sample quality evaluation, especially, relate to an equipment that is used for rigidity filiform sample rigidity to test.
Background
At present, the research on the wire feeding stability of a filamentous sample is mostly limited to the surface state of the filamentous sample, for example, in the prior art, a method for determining a welding wire with excellent wire feeding performance in automatic welding of CN200910091678.4 is adopted, the wire feeding stability is evaluated by adopting a criterion for the surface quality of the welding wire, however, the wire feeding stability is evaluated only by the flatness degree of the surface of the welding wire, the effect of the rigidity of the welding wire is ignored, a great error exists in the evaluation of the stability of the actual wire feeding process, and the guiding significance to the wire production and the welding process is limited. The method can be used for guiding the production and research and development of the welding wire and serving as an analysis basis for the resistance of the welding wire in the use process through the representation of the rigidity of the solid welding wire, so that equipment for testing the rigidity of the wire sample is required to research the rigidity of the wire sample.
SUMMERY OF THE UTILITY MODEL
To the technical problem mentioned above, the utility model provides an equipment for rigidity filamentous sample rigidity test is used for testing filamentous sample's rigidity characteristic.
The utility model provides a technical scheme that its technical problem adopted is: a rigidity testing device for a rigid filamentous sample comprises a bottom plate, a limiting block, a movable sliding block, a fixed block, a pressing block and a pressure testing system; the bottom plate is provided with a sliding groove, and the limiting block, the movable sliding block and the fixed block are sequentially arranged in the sliding groove; the pressing block is arranged on the clamping groove of the bottom plate; the limiting block is provided with two pressure sensors which are perpendicular to each other in the normal direction; the movable sliding block is in contact with a pressure sensor, and the pressure sensor is connected with a pressure testing system.
In the scheme, at least two pairs of positioning holes are formed in two sides of the bottom plate sliding groove; the limiting block is provided with a positioning hole, and the positioning hole on the limiting block corresponds to the positioning hole of the bottom plate in position.
In the above scheme, the width of the top of the clamping groove is smaller than that of the bottom.
Furthermore, a hole is formed in the middle of the pressing block, the bottom of the pressing block is located in the clamping groove, the top of the pressing block is located on the clamping groove, and the pressing block can slide along the clamping groove when the bottom and the top of the pressing block are not fixed; the lower surface of one end of the top of the pressing block is higher than the surface of the bottom plate.
In the scheme, one end of the fixing block is provided with the rotating shaft, and the rotating shaft is provided with the small hole.
In the above scheme, the rotating shaft is installed at one end of the movable sliding block, which faces the limiting block, and the rotating shaft is provided with a small hole for installing the filamentous sample.
In the above scheme, the limiting block is respectively provided with a pressure sensor at the position in the length direction of the sliding groove and the position perpendicular to the length direction of the sliding groove.
In the scheme, the bottom of the movable sliding block is provided with the pulley.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a rigidity characteristic for testing filamentous sample, under the different bending condition of can feeding back, filamentous sample rigidity power, bending curvature radius's size, and remove remaining effective length behind the constraint, obtain the characteristic of the rigidity power of different filamentous samples, the rigidity size of analysis different kinds of samples, and the stability and the rigidity characteristic of the same kind of sample for guide welding wire production process and as the analysis foundation of welding process welding wire resistance.
Drawings
Fig. 1 is a perspective view schematically illustrating an embodiment of the present invention.
Fig. 2 is a front view of an embodiment of the present invention.
Fig. 3 is a plan view of an embodiment of the present invention.
Fig. 4 isbase:Sub>A partial sectional viewbase:Sub>A-base:Sub>A of an embodiment of the present invention.
Fig. 5 is an enlarged view of a briquette according to an embodiment of the present invention.
In the figure, 1, a bottom plate; 2. a limiting block; 3. moving the slide block; 4. a fixed block; 5. briquetting; 6. a pressure testing system; 7. a pressure sensor; 11. a chute; 12. a clamping groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the 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 specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Fig. 1 shows a preferred embodiment of the apparatus for rigidity testing of rigid filamentous samples, which comprises a bottom plate 1, a limiting block 2, a moving slide block 3, a fixed block 4, a pressing block 5 and a pressure testing system 6; the bottom plate 1 is provided with a sliding groove 11, and the limiting block 2, the movable sliding block 3 and the fixed block 4 are arranged in the sliding groove 11; the pressing block 5 is arranged on the bottom plate 1; the limiting block 2 is provided with a pressure sensor 7, and the pressure sensor 7 is connected with a pressure testing system 6.
At least two pairs of positioning holes are formed in the two sides of the sliding groove 11 of the bottom plate 1; preferably, the distance between each row of positioning holes is 50mm.
The bottom plate 1 is provided with at least one clamping groove 12 in the direction perpendicular to the sliding groove 11, and the width of the top of the clamping groove 12 is smaller than that of the bottom; preferably, three card slots 12 are provided.
The utility model discloses can be through at different fixed stopper 2 in position, pressure on the pressure sensor 7 when obtaining different positions, and then obtain the pressure of filiform sample, can place briquetting 5 in the draw-in groove of difference, obtain different filiform sample curvature radius, can effectively measure the rigidity of filiform sample.
The middle of the pressing block 5 is provided with a hole, the bottom of the pressing block 5 is arranged in the clamping groove 12, and the top of the pressing block 5 is arranged on the clamping groove 12; preferably, the bottom and the top of the pressing block 5 are connected through a bolt, and the pressing block 5 can slide along the clamping groove 12 when the bolt is not screwed down; the lower surface of one end of the top of the pressing block 5 is higher than the surface of the bottom plate 1 and is used for fixing the filiform sample to be attached to the surface of the bottom plate 1.
The fixed block 4 is arranged at one end of the sliding chute 11 of the bottom plate 1; and a rotating shaft is arranged at one end of the fixing block 4, and a small hole is formed in the rotating shaft and used for installing a filamentous sample.
The limiting block 2 is arranged at the other end of the sliding groove 11 of the bottom plate 1; the limiting block 2 is provided with a positioning hole corresponding to the positioning hole of the bottom plate 1; preferably, the limiting hole 2 and the positioning hole on the bottom plate 1 are connected and positioned by a pin shaft; the limiting block 2 is provided with a pressure sensor 7 at the protruding part in the direction of the sliding groove 11 and the direction vertical to the sliding groove 11.
The bottom of the movable sliding block 3 is provided with a pulley which is arranged in the sliding chute 11; one end of the movable sliding block 3, which faces the fixed block 4, is provided with a rotating shaft, and the rotating shaft is provided with a small hole for installing a filamentous sample; the movable sliding block 3 is contacted with the pressure sensor 7 of the limiting block 2.
The pressure testing system 6 is connected with the two pressure sensors 7 on the limiting block 2, and the component force measured by the two pressure sensors 7 is synthesized into the actual elasticity of the filiform sample.
The utility model discloses a rigidity filamentous sample is after the symmetry is crooked, through the different distances that change removal slider 3 and fixed block 4, adjust bending distance L promptly, produce different bounce-back effort, decompose this elasticity into two vertically effort Fa (vertical effort) and Fb (horizontal effort), fa and Fb accessible stopper 2 on pressure sensor 7 measure and read the measured value on pressure test system 6, then can calculate resultant force F through the pythagorean theorem, the accessible measures the radius of curvature R of filamentous sample after the bending simultaneously, and take off the remaining effective length S after the constraint after removing, chord length after the relaxation constraint of sample promptly, adopt F, R and S three values to characterize the rigidity characteristic of sample, use it for the test of filamentous sample (including but not limiting to the solid welding wire) rigidity, the sign through the rigidity of solid welding wire, can be used to guide the production and the research and development of welding wire, and as the analysis foundation of welding wire resistance in the use.
And under the same bending distance L, comparing the rigidity between different filamentous samples to determine the stability of the samples, sequentially measuring different F values, R values and S values from large L to small L under different bending distances L, and determining the variation trend of the F values, the R values and the S values to represent the rigidity characteristic of the filamentous samples.
Rigidity testing of the filamentous sample:
1) Firstly, selecting a filamentous sample with a certain length, preferably 200-600 mm, penetrating one end of the filamentous sample into a hole of a rotating shaft of a fixed block 4, and fastening the fixed block 4 on a bottom plate 1 by using a bolt;
2) The other end of the filiform sample is inserted into a hole of a rotating shaft of the movable slide block 3;
3) After the position of the limiting block 2 is determined according to the length of the filamentous sample required by the test, the limiting block 2 can be pushed to different positions according to the test conditions, the positioning hole of the limiting block 2 is connected with the positioning hole of the bottom plate 1 through a pin shaft, and the rigidity index of the current position can be measured. The limiting block 2 is provided with 2 micro sensor grooves, the two pressure sensors 7 are respectively arranged in the micro sensor grooves, the normal directions of the two pressure sensors 7 are mutually vertical, two component forces of the elastic force can be measured, the two pressure sensors 7 are connected to the pressure testing system 6, the two component forces can be read on the pressure testing system 6, and then resultant force F, F is the elastic force of the filiform sample.
4) The briquetting 5 can slide on the draw-in groove along with filiform sample under the crooked condition of filiform sample, when sliding to the maximum distance, screws up the bolt on the briquetting 5, and the 5 positions of fixed briquetting measure the distance of briquetting 5 to the spout, calculate the crooked radius of curvature R of filiform sample.
5) Finally, measuring the residual effective length S after the filamentous sample is taken down and the constraint is removed, namely the chord length of the sample after the relaxation constraint, and representing the rigidity characteristic of the sample by adopting three values of F, R and S. Generally, when the distances between the fixed block 4 and the movable slider 3 are equal during testing, namely the bending distances L are the same, the F values at the moment are compared, samples made of different materials have different F values, and the larger the F value is, the larger the rigidity is, the rigidity of different samples can be compared; if the bending distance L is the same and the value F is not different, the curvature radius R of the bending point can be compared, and the larger the curvature radius R is, the larger the rigidity is; when the value of F and the curvature radius R are basically the same, the residual effective length S after constraint-released rebounding is compared, and the larger the S is, the larger the rigidity is.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The equipment for testing the rigidity of the rigid filamentous sample is characterized by comprising a bottom plate (1), a limiting block (2), a movable sliding block (3), a fixed block (4), a pressing block (5) and a pressure testing system (6);
the bottom plate (1) is provided with a sliding chute (11), and at least one clamping groove (12) is arranged in the direction perpendicular to the sliding chute (11); the limiting block (2), the movable sliding block (3) and the fixed block (4) are sequentially arranged in the sliding groove (11); the pressing block (5) is arranged on the clamping groove (12) of the bottom plate (1); the limiting block (2) is provided with two pressure sensors (7) which are perpendicular to each other in the normal direction; the movable sliding block (3) is in contact with a pressure sensor (7), and the pressure sensor (7) is connected with a pressure testing system (6).
2. The apparatus for the rigidity testing of rigid filamentous samples according to claim 1, wherein the bottom plate (1) is provided with at least two pairs of positioning holes at both sides of the chute (11); the limiting block (2) is provided with a positioning hole, and the positioning hole in the limiting block (2) corresponds to the positioning hole in the bottom plate (1).
3. The apparatus for rigid testing of the stiffness of a rigid filamentous sample as claimed in claim 1 wherein the width of the top of the card slot (12) is smaller than the width of the bottom.
4. The device for testing the rigidity of the rigid filamentous sample according to claim 3, wherein the pressing block (5) is provided with a hole in the middle, the bottom of the pressing block (5) is positioned in the clamping groove (12), the top of the pressing block (5) is positioned on the clamping groove (12), and the pressing block (5) can slide along the clamping groove (12) when the bottom and the top of the pressing block (5) are not fixed; the lower surface of one end of the top of the pressing block (5) is higher than the surface of the bottom plate (1).
5. The device for testing the rigidity of the rigid filamentous sample according to claim 1, wherein one end of the fixed block (4) is provided with a rotating shaft, and the rotating shaft is provided with a small hole.
6. The device for testing the rigidity of the rigid filamentous sample according to claim 1, wherein a rotating shaft is installed at one end of the movable sliding block (3) opposite to the limiting block (2), and a small hole is formed in the rotating shaft.
7. The device for testing the rigidity of the rigid filamentous sample according to claim 1, wherein the limiting block (2) is provided with a pressure sensor (7) at a position in the length direction of the sliding chute (11) and at a position perpendicular to the length direction of the sliding chute (11).
8. The apparatus for the rigidity testing of rigid filamentous samples according to claim 1 wherein the moving slider (3) is provided with a pulley at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220964884.2U CN217786716U (en) | 2022-04-25 | 2022-04-25 | Equipment for rigidity test of rigid filamentous sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220964884.2U CN217786716U (en) | 2022-04-25 | 2022-04-25 | Equipment for rigidity test of rigid filamentous sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217786716U true CN217786716U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220964884.2U Active CN217786716U (en) | 2022-04-25 | 2022-04-25 | Equipment for rigidity test of rigid filamentous sample |
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| Country | Link |
|---|---|
| CN (1) | CN217786716U (en) |
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- 2022-04-25 CN CN202220964884.2U patent/CN217786716U/en active Active
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