CN219084591U - Extension score type magnetic attraction clamping device - Google Patents
Extension score type magnetic attraction clamping device Download PDFInfo
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- CN219084591U CN219084591U CN202223231442.6U CN202223231442U CN219084591U CN 219084591 U CN219084591 U CN 219084591U CN 202223231442 U CN202223231442 U CN 202223231442U CN 219084591 U CN219084591 U CN 219084591U
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- extensometer
- suction head
- circular guide
- iron boron
- neodymium iron
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Abstract
The utility model discloses an extension score type magnetic attraction clamping device, which relates to the technical field of physical detection of materials and comprises the following components: the middle parts of the two extensometer connecting brackets are respectively used for being detachably and fixedly connected with two bridge arms of the extensometer, and a first steel positioning connecting piece and a second steel positioning connecting piece are arranged at two ends of the extensometer connecting brackets; the both ends of dismouting support are provided with first neodymium iron boron suction head and second neodymium iron boron suction head, first neodymium iron boron suction head is used for locating the connecting piece magnetism with first steel and inhale and connect, and the second neodymium iron boron suction head is used for locating the connecting piece magnetism with the second steel and inhale and connect, the length of flexible fastener can be adjusted and keep the position after the regulation, the one end and the dismouting support fixed connection of flexible fastener are adjusted to the length of flexible fastener can make the other end and the tensile sample contact of flexible fastener and the tight tensile sample of top, satisfy the swift dress card of extensometer when tensile test of iron and steel material, improve the stability of extensometer dress card, improve detection precision.
Description
Technical Field
The utility model relates to the technical field of physical detection of materials, in particular to an extension score type magnetic attraction clamping device.
Background
At present, along with the development of the metal materials towards the high strength and high toughness, when many metal materials are subjected to tensile test, the yield phenomenon is not obvious, even the yield is not generated, and the extensometer is required to be clamped on a sample to detect the engineering yield, so that the extensometer is used more and more frequently during the tensile test, but the conventional extensometer is clamped with rubber bands, and the conventional extensometer is used with single-strand springs, so that the operation is complicated, the stability is poor, the detection precision is often influenced due to slipping, and even the engineering yield detection fails.
Disclosure of Invention
The utility model aims to provide an extensometer split type magnetic attraction clamping device, which solves the problems in the prior art, meets the requirements of rapid clamping of an extensometer during a tensile test of steel materials, improves the clamping stability of the extensometer and improves the detection precision.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides an extension score type split magnetic attraction clamping device, which comprises: the two extensometer connecting brackets, two dismounting brackets and two telescopic fasteners, wherein the middle parts of the two extensometer connecting brackets are respectively used for being detachably and fixedly connected with two bridge arms of the extensometer, a first steel positioning connecting piece and a second steel positioning connecting piece are arranged at two ends of the extensometer connecting brackets, and a first sample accommodating groove is formed in a space between the first steel positioning connecting piece and the second steel positioning connecting piece; the two ends of the disassembly and assembly support are provided with a first neodymium iron boron suction head and a second neodymium iron boron suction head, a second sample accommodating groove is formed in a space between the first neodymium iron boron suction head and the second neodymium iron boron suction head, the first neodymium iron boron suction head is used for being in magnetic attraction connection with the first steel positioning connecting piece, and the second neodymium iron boron suction head is used for being in magnetic attraction connection with the second steel positioning connecting piece so as to place a tensile sample in the first sample accommodating groove and the second sample accommodating groove; the length of the telescopic fastener can be adjusted and the adjusted position can be kept, one end of the telescopic fastener is fixedly connected with the dismounting bracket, and the other end of the telescopic fastener can be contacted with the tensile sample and tightly propped against the tensile sample by adjusting the length of the telescopic fastener.
Preferably, the device further comprises a plurality of fixing bolts, wherein an extensometer connecting pipe is arranged in the middle of the extensometer connecting bracket, a bridge arm of the extensometer is used for being contacted with the tensile sample after passing through the extensometer connecting pipe, a plurality of threaded holes are formed in the extensometer connecting pipe, and the fixing bolts are used for being in threaded connection with the threaded holes and tightly propping up the bridge arm of the extensometer after passing through the threaded holes so as to fix the extensometer connecting pipe with the bridge arm of the extensometer.
Preferably, the extensometer linking bridge still includes first connection base and second connection base, first connection base with second connection base respectively an organic whole connect in extensometer linking bridge's both ends, first connection base be used for with first steel location connecting piece passes through bolt fixed connection, second connection base be used for with second steel location connecting piece passes through bolt fixed connection.
Preferably, the dismounting bracket further comprises a third connecting base and a fourth connecting base, the third connecting base and the fourth connecting base are respectively integrally connected to two ends of the dismounting bracket, the third connecting base is used for being fixedly connected with the first neodymium iron boron suction head through bolts, and the fourth connecting base is used for being fixedly connected with the second neodymium iron boron suction head through bolts.
Preferably, the telescopic fastener comprises a circular guide cylinder, a circular guide block, a loading spring, an adjusting bolt, a guide rod and a clamping tool bit, one end of the circular guide cylinder is integrally connected with the disassembly and assembly support, the other end of the circular guide cylinder extends into the second sample accommodating groove, the two ends of the circular guide cylinder are provided with a first through hole and a second through hole, the inner wall of the circular guide cylinder is provided with internal threads, the first end of the adjusting bolt is used for being in threaded connection with the internal threads, the second end of the adjusting bolt extends out of the first through hole, the first through hole can limit the first end of the adjusting bolt to extend out of the circular guide cylinder, the circular guide block is arranged in an inner cavity of the circular guide cylinder, is far away from one end of the disassembly and assembly support and can slide in the circular guide cylinder, the diameter of the circular guide block is larger than that of the second through hole, one end of the loading spring is fixedly connected with the first end of the adjusting bolt, one end of the guide rod is fixedly connected with the circular guide block, and the other end of the guide rod is fixedly connected with the second end of the guide block, and the first end of the guide rod is in a manner of stretching out of the second end of the guide rod and is in contact with the clamping tool bit.
Preferably, the second end of the adjusting bolt is a knurled knob.
Preferably, one end of the clamping tool bit, which is close to the tensile sample, is in a knife edge shape.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides an extensometer split type magnetic attraction clamping device, which is characterized in that after two extensometer connecting brackets are respectively and detachably and fixedly connected with two bridge arms of an extensometer, the two dismounting brackets are respectively and magnetically attracted and connected with the two extensometer connecting brackets, so that a tensile sample is enclosed between the extensometer connecting brackets and the dismounting brackets, a telescopic fastener is regulated to enable the telescopic fastener to contact the tensile sample and clamp the tensile sample with the bridge arms, the extensometer fast-assembling clamping of steel materials in a tensile test is met, the stability of the extensometer clamping is improved, the tensile sample and the bridge arms are prevented from slipping, and the detection precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the stretching score type magnetic card device provided by the utility model;
FIG. 2 is a front view of the extensometer split magnetic chuck device provided by the utility model when assembled with an extensometer and a tensile specimen;
FIG. 3 is a top view of the extensometer split magnetic chuck device provided by the utility model in use with an extensometer and a tensile specimen;
in the figure: 1. the extensometer is connected with the bracket; 2. disassembling and assembling the bracket; 3. a first connection base; 4. a second connection base; 5. a first steel locating connection; 6. a second steel locating connection; 7. a first neodymium iron boron suction head; 8. a second NdFeB suction head; 9. a third connection base; 10. a fourth connection base; 11. a circular guide cylinder; 12. a guide cylinder internal thread; 13. an adjusting bolt; 14. loading a spring; 15. knurled knobs; 16. a guide rod; 17. a bolt; 18. a threaded hole; 19. a circular guide block; 20. clamping a cutter head; 21. an extensometer connecting tube; 22. a tensile test piece; 23. an extensometer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide an extensometer split type magnetic attraction clamping device, which solves the problems in the prior art, meets the requirements of rapid clamping of an extensometer during a tensile test of steel materials, improves the clamping stability of the extensometer and improves the detection precision.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The utility model provides an extension score type split magnetic attraction clamping device, as shown in figures 1-3, comprising: the two extensometer connecting brackets 1, the two dismounting brackets 2 and the two telescopic fasteners, the middle parts of the two extensometer connecting brackets 1 are respectively used for being detachably and fixedly connected with two bridge arms of the extensometer 23, the two ends of the extensometer connecting brackets 1 are provided with a first steel positioning connecting piece and a second steel positioning connecting piece, and a first sample accommodating groove is formed in a space between the first steel positioning connecting piece and the second steel positioning connecting piece; the two ends of the dismounting bracket 2 are provided with a first neodymium iron boron suction head 6, a second steel positioning connecting piece; 7 and a second NdFeB suction head 8, a first NdFeB suction head 6, a second steel positioning connector; the space between the first neodymium iron boron suction head 8 and the second neodymium iron boron suction head 7 forms a second sample accommodating groove, and the first neodymium iron boron suction head 6 is a second steel positioning connecting piece; the first neodymium iron boron suction head 8 is used for being connected with the first steel positioning connecting piece in a magnetic attraction mode so as to place the tensile sample in the first sample accommodating groove and the second sample accommodating groove; the length of the telescopic fastener can be adjusted and kept at the adjusted position, one end of the telescopic fastener is fixedly connected with the dismounting support 2, the other end of the telescopic fastener can be in contact with the tensile sample and tightly push the tensile sample by adjusting the length of the telescopic fastener, after the two extensometer connecting supports 1 are respectively and detachably fixedly connected with the two bridge arms of the extensometer, the two dismounting supports 2 are respectively and magnetically connected with the two extensometer connecting supports 1, thereby enclosing the tensile sample between the extensometer connecting supports 1 and the dismounting supports 2, the telescopic fastener is adjusted to enable the telescopic fastener to be in contact with the tensile sample and clamp the tensile sample with the bridge arms, the requirement that the extensometer 23 is rapidly clamped when steel materials are subjected to tensile test is met, the stability of the extensometer clamping is improved, the tensile sample and the bridge arms are prevented from slipping, and the detection precision is improved.
In a preferred embodiment, the extensometer split type magnetic attraction clamping device further comprises a plurality of fixing bolts, the extensometer connecting bracket 1 is provided with an extensometer connecting pipe 21 in the middle, a bridge arm of the extensometer is used for contacting with a tensile sample after penetrating through the extensometer connecting pipe 21, the extensometer connecting pipe 21 is provided with a plurality of threaded holes 18, the fixing bolts are used for being in threaded connection with the threaded holes 18 and propped against the bridge arm of the extensometer after penetrating through the threaded holes 18 so as to fix the extensometer connecting pipe 21 with the bridge arm of the extensometer, and after the relative positions of the extensometer connecting bracket 1 and the extensometer bridge arm are adjusted, the extensometer bridge arm and the extensometer connecting bracket 1 can be fixed by rotating the fixing bolts.
In a preferred embodiment, the extensometer connecting bracket 1 further includes a first connecting base 3 and a second connecting base 4, the first connecting base 3 and the second connecting base 4 are integrally connected to two ends of the extensometer connecting bracket 1 respectively, the first connecting base 3 is used for being fixedly connected with the first steel positioning connecting piece through bolts, and the second connecting base 4 is used for being fixedly connected with the second steel positioning connecting piece through bolts.
In a preferred embodiment, the dismounting bracket 2 further comprises a third connecting base 9 and a fourth connecting base 10, the third connecting base 9 and the fourth connecting base 10 are respectively and integrally connected to two ends of the dismounting bracket 2, and the third connecting base 9 is used for being connected with the first NdFeB suction head 6; 7 are fixedly connected through bolts, and the fourth connecting base 10 is used for being fixedly connected with the second neodymium iron boron suction head 8 through bolts.
In a preferred embodiment, the first neodymium iron boron suction head 6. A second steel positioning connection; 7 and second neodymium iron boron suction head 8 are protruding, and the middle part of first steel location connecting piece and second steel location connecting piece is the recess, protruding gomphosis connection and recess, further assurance connection's stability.
In a preferred embodiment, the telescopic fastener comprises a circular guide cylinder 11, a circular guide block 19, a loading spring 14, an adjusting bolt 13, a guide rod 16 and a clamping tool bit 20, one end of the circular guide cylinder 11 is integrally connected with the dismounting bracket 2, the other end of the circular guide cylinder extends into the second sample accommodating groove, a first through hole and a second through hole are arranged at two ends of the circular guide cylinder 11, an inner thread 12 is arranged on the inner wall of the circular guide cylinder 11, the first end of the adjusting bolt 13 is used for being in threaded connection with the inner thread 12, the second end of the adjusting bolt 13 extends out of the first through hole, the first through hole can limit the first end of the adjusting bolt 13 to extend out of the circular guide cylinder 11, the circular guide block 19 is arranged at one end, far away from the dismounting bracket 2, of the inner cavity of the circular guide cylinder 11 and can slide in the circular guide cylinder 11, the diameter of the circular guide block 19 is larger than that of the second through hole, one end of the loading spring 14 is fixedly connected with the round guide block 19, the other end of the loading spring is fixedly connected with the first end of the adjusting bolt 13, one end of the guide rod 16 is fixedly connected with the round guide block 19, the other end of the guide rod 16 extends out of the second through hole and then is fixedly connected with the clamping tool bit 20, the clamping tool bit 20 is used for being in contact with and propped against a tensile sample, the structure is simple, the loading spring 14 can be adjusted to push the round guide block 19 to slide towards the tensile sample 22 and drive the clamping tool bit 20 to be in contact with and clamp the tensile sample 22 through rotating the adjusting bolt 13, preferably, the clamping range of the stretching score type magnetic clamping device can be used in the range of 1mm-100mm, and the stretching meter configured by the existing 10T-200T tensile testing machine can be clamped on the tensile samples in various sizes and shapes, and has the advantages of wide application range, stability, reliability and convenience in operation.
In a preferred embodiment, the second end of the adjustment bolt 13 is a knurled knob 15 to facilitate rotation of the adjustment bolt 13 to adjust the degree of clamping of the clamping bit 20 to the tensile specimen.
In a preferred embodiment, the clamping head 20 is fixedly connected to the guide bar 16 by means of a bolt 17.
In a preferred embodiment, the end of the clamping tool bit 20, which is close to the tensile sample, is in a knife edge shape, so that the clamping tool bit 20 and the tensile sample can not slide relatively, the clamping tool bit is made of quenched alloy steel, and the clamping tool bit is good in hardness and wear resistance and long in service life.
During the use, firstly, a tensile sample is clamped on a tensile testing machine, one bridge arm is fixed with a connecting bracket 1 of an extensometer through a fixing bolt, then the clamping position of the extensometer 23 is selected, the extensometer 23 is held to contact a knife edge at the tail end of the bridge arm of the extensometer with the tensile sample, the disassembling and assembling bracket 2 is grasped by one hand, the clamping position is selected, a clamping tool bit 20 is clamped on the tensile sample, and the disassembling and assembling bracket 2 is manually moved to enable a first neodymium-iron-boron suction head 6 to be positioned by a second steel positioning connecting piece; and 7 and the second NdFeB suction head 8 are respectively adsorbed to the first steel positioning connecting piece 5 and the second steel positioning connecting piece, and the loading force of the loading spring 14 is loaded onto the tensile sample through the clamping tool bit 20 due to the super-strong magnetic attraction of the NdFeB, so that the clamping action is completed. When the novel neodymium iron boron suction head is disassembled, only one hand is needed to grasp the extensometer 23, and the disassembly and assembly bracket 2 is grasped by one hand to pull outwards, so that the first neodymium iron boron suction head 6 is a second steel positioning connecting piece; 7 and the second NdFeB suction head 8 are separated from the first steel positioning connection and the second steel positioning connection, the clamping tool bit 20 is separated from the tensile sample, and the operation on the other bridge arm is the same.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (7)
1. An extension score type magnetic attraction clamping device is characterized in that: comprising the following steps:
the two extensometer connecting brackets are respectively and detachably fixedly connected with two bridge arms of the extensometer, a first steel positioning connecting piece and a second steel positioning connecting piece are arranged at two ends of the extensometer connecting brackets, and a first sample accommodating groove is formed in a space between the first steel positioning connecting piece and the second steel positioning connecting piece;
the two ends of the dismounting support are provided with a first neodymium iron boron suction head and a second neodymium iron boron suction head, a second sample accommodating groove is formed in a space between the first neodymium iron boron suction head and the second neodymium iron boron suction head, the first neodymium iron boron suction head is used for being in magnetic attraction connection with the first steel positioning connecting piece, and the second neodymium iron boron suction head is used for being in magnetic attraction connection with the second steel positioning connecting piece so as to place a tensile sample in the first sample accommodating groove and the second sample accommodating groove;
the length of the telescopic fastener can be adjusted and the adjusted position can be kept, one end of the telescopic fastener is fixedly connected with the dismounting bracket, and the length of the telescopic fastener is adjusted to enable the other end of the telescopic fastener to be in contact with the tensile sample and jack up the tensile sample.
2. The extensional score-type magnetic chuck device according to claim 1, characterized in that: the tensile test device comprises a tensile test sample, and is characterized by further comprising a plurality of fixing bolts, wherein an extensometer connecting pipe is arranged in the middle of the extensometer connecting bracket, a bridge arm of the extensometer is used for penetrating through the extensometer connecting pipe and then contacting with the tensile test sample, a plurality of threaded holes are formed in the extensometer connecting pipe, and the fixing bolts are used for being in threaded connection with the threaded holes and penetrating through the threaded holes and then propping up the bridge arm of the extensometer so as to fix the extensometer connecting pipe with the bridge arm of the extensometer.
3. The extensional score-type magnetic chuck device according to claim 1, characterized in that: the extensometer linking bridge still includes first connection base and second connection base, first connection base with second connection base respectively an organic whole connect in extensometer linking bridge's both ends, first connection base be used for with first steel location connecting piece pass through bolt fixed connection, second connection base be used for with second steel location connecting piece pass through bolt fixed connection.
4. The extensional score-type magnetic chuck device according to claim 1, characterized in that: the disassembly and assembly support further comprises a third connecting base and a fourth connecting base, the third connecting base and the fourth connecting base are integrally connected to two ends of the disassembly and assembly support respectively, the third connecting base is used for being fixedly connected with the first neodymium iron boron suction head through bolts, and the fourth connecting base is used for being fixedly connected with the second neodymium iron boron suction head through bolts.
5. The extensional score-type magnetic chuck device according to claim 1, characterized in that: the telescopic fastener comprises a circular guide cylinder, a circular guide block, a loading spring, an adjusting bolt, a guide rod and a clamping tool bit, wherein one end of the circular guide cylinder is integrally connected with the disassembly and assembly support, the other end of the circular guide cylinder extends into the second sample accommodating groove, the two ends of the circular guide cylinder are provided with a first through hole and a second through hole, the inner wall of the circular guide cylinder is provided with an internal thread, the first end of the adjusting bolt is used for being in threaded connection with the internal thread, the second end of the adjusting bolt extends out of the first through hole, the first through hole can limit the first end of the adjusting bolt to extend out of the circular guide cylinder, the circular guide block is arranged in an inner cavity of the circular guide cylinder, is far away from one end of the disassembly and assembly support and can slide in the circular guide cylinder, the diameter of the circular guide block is larger than that of the second through hole, one end of the loading spring is fixedly connected with the circular guide block, the other end of the adjusting bolt is fixedly connected with the first end of the guide rod, the other end of the adjusting bolt is fixedly connected with the circular guide block, and the other end of the guide rod extends out of the second guide rod to be in contact with the clamping tool bit tightly.
6. The extensional score-type magnetic chuck device according to claim 5 wherein: the second end of the adjusting bolt is provided with a knurled knob.
7. The extensional score-type magnetic chuck device according to claim 6 wherein: one end of the clamping tool bit, which is close to the tensile sample, is in a knife edge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223231442.6U CN219084591U (en) | 2022-12-01 | 2022-12-01 | Extension score type magnetic attraction clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223231442.6U CN219084591U (en) | 2022-12-01 | 2022-12-01 | Extension score type magnetic attraction clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219084591U true CN219084591U (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223231442.6U Active CN219084591U (en) | 2022-12-01 | 2022-12-01 | Extension score type magnetic attraction clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219084591U (en) |
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2022
- 2022-12-01 CN CN202223231442.6U patent/CN219084591U/en active Active
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