CN114905442B - Special fixture for loading and positioning high-strength steel wire - Google Patents
Special fixture for loading and positioning high-strength steel wire Download PDFInfo
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- CN114905442B CN114905442B CN202210709071.3A CN202210709071A CN114905442B CN 114905442 B CN114905442 B CN 114905442B CN 202210709071 A CN202210709071 A CN 202210709071A CN 114905442 B CN114905442 B CN 114905442B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 193
- 239000010959 steel Substances 0.000 title claims abstract description 193
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Bridges Or Land Bridges (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A special fixture for loading and positioning a high-strength steel wire relates to a special fixture. The upper steel plate and the lower steel plate are correspondingly arranged at intervals in the vertical direction, the center of the upper steel plate is provided with a through hole, the center of the lower steel plate is provided with a screw hole, two opposite ends of the upper steel plate and the lower steel plate are respectively concavely provided with a notch, the inner side ends of the notches are arranged into semicircular cambered surfaces, two nuts are symmetrically arranged on two sides of the lower surface of the lower steel plate, the two nuts are respectively coaxially matched with the semicircular cambered surfaces of the two notches of the lower steel plate, a step surface is machined at the position adjacent to the upper end of the threaded steel column to support the lower surface of the upper steel plate, the upper end of the threaded steel column extends out of the through hole of the upper steel plate and is vertically fixed with a rotating rod, and a threaded section is machined at the lower end of the threaded steel column to be in screwed connection with the screw hole of the lower steel plate. The high-strength steel wire loading device can ensure that the displacement of the high-strength steel wire is kept unchanged after loading, and meanwhile, the loading and unloading work of the high-strength steel wire is convenient, the loss of corrosion products is reduced, and the accuracy of test results is improved.
Description
Technical Field
The invention relates to a special fixture, in particular to a special fixture for loading and positioning a high-strength steel wire, and belongs to the technical field of material mechanics tests.
Background
The clamp assembly is mainly used for fixing the displacement of the loaded high-strength steel wire, so that the stress of the loaded high-strength steel wire is still maintained.
However, under the existing technical conditions, the conventional clamp cannot meet the requirement of convenient assembly and disassembly, and meanwhile, the former clamp is overlarge in size and is unfavorable for operation in a salt spray box. Therefore, a special fixture for carrying out displacement positioning on the high-strength steel wire in the salt spray test is very necessary to design.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the special fixture for loading and positioning the high-strength steel wire, which can ensure that the displacement of the high-strength steel wire is unchanged after loading, is convenient for loading and unloading the high-strength steel wire, reduces the loss of corrosion products and is beneficial to improving the accuracy of test results.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a high strength steel wire loading location special fixture, includes high strength steel wire locating component and screw thread steel column supporting component, high strength steel wire locating component includes upper portion steel sheet, lower part steel sheet and two nuts, upper portion steel sheet with lower part steel sheet corresponds the setting at vertical direction interval, and the through-hole is seted up at upper portion steel sheet center, and the screw is seted up at lower part steel sheet center, and upper portion steel sheet and lower part steel sheet both opposite ends are inwards concave respectively and are equipped with the opening, the inboard end of opening sets up to the semicircle cambered surface, two nuts symmetry are placed in lower part steel sheet lower surface both sides, and two nuts respectively with the semicircle cambered surface coaxial coupling of two openings of lower part steel sheet, screw thread steel column supporting component includes screw thread steel column and dwang, screw thread steel column is adjacent upper end position processing has the step face to support upper portion steel sheet lower surface, screw thread steel column upper end stretches out the through-hole and vertical fixation has the dwang, screw thread steel column lower extreme processing has the screw section to connect soon with the screw of lower part steel sheet to cooperate.
Compared with the prior art, the invention has the beneficial effects that: the invention can ensure that the displacement of the high-strength steel wire is unchanged after loading, simultaneously facilitates the loading and unloading work of the high-strength steel wire, reduces the loss of corrosion products, is beneficial to improving the accuracy of test results, utilizes the notch of the upper steel plate to clamp the pier head of the high-strength steel wire, utilizes the cooperation of the notch of the lower steel plate and the nut to fix the tail end of the high-strength steel wire, has simple and reasonable fixing form, can prevent the high-strength steel wire from sliding displacement, meets the requirement of fixing the loaded high-strength steel wire, has the design of the notch meeting the simple and convenient requirement of loading and unloading the high-strength steel wire, is beneficial to avoiding the loss of corrosion products in the disassembly process, adopts the threaded steel column in the middle to support the upper steel plate and the lower steel plate, bears the stress of the high-strength steel wires at two sides, can reduce the generation of asymmetric displacement in the left-right direction, ensures that the stress error of the high-strength steel wires at two sides is within an acceptable range, can be repeatedly used by controlling the rotation of the threaded steel column through the detachable rotating rod, can reduce the volume of the clamp, and is convenient to carry and place.
Drawings
FIG. 1 is an isometric view of the overall structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is an isometric view of a high strength wire locating assembly of the present invention;
fig. 6 is an isometric view of a threaded steel post support assembly of the invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are all within the protection scope of the present invention.
As shown in figures 1-6, the special fixture for loading and positioning the high-strength steel wire comprises a high-strength steel wire positioning component and a threaded steel column supporting component.
Referring to fig. 5, the high-strength steel wire positioning assembly comprises an upper steel plate 1, a lower steel plate 2 and two nuts 3, wherein the upper steel plate 1 and the lower steel plate 2 are correspondingly arranged on two sides of the lower surface of the lower steel plate 2 in a vertical direction at intervals, a through hole is formed in the center of the upper steel plate 1, a screw hole is formed in the center of the lower steel plate 2, notches are formed in two opposite ends of the upper steel plate 1 and the lower steel plate 2 in a concave manner respectively for plugging in and installing the high-strength steel wire, the inner ends of the notches are arranged to be semicircular cambered surfaces, so that the attaching and lifting stability of the high-strength steel wire is facilitated, the two nuts 3 are symmetrically arranged on two sides of the lower surface of the lower steel plate 2, and the two nuts 3 are respectively matched with the semicircular cambered surfaces of the two notches of the lower steel plate 2 in a coaxial manner.
Referring to fig. 6, the threaded steel column support assembly comprises a threaded steel column 4 and a rotating rod 5, wherein a step surface is machined at the position, close to the upper end, of the threaded steel column 4, the rotating rod 5 is vertically fixed with the upper end of the threaded steel column 4, and a threaded section is machined at the lower end of the threaded steel column 4.
Referring to fig. 1 to 4, the stepped surface of the screw-thread steel column 4 is supported on the lower surface of the upper steel plate 1, the upper end of the screw-thread steel column 4 extends out of the through hole of the upper steel plate 1, and the screw-thread section of the lower end of the screw-thread steel column 4 is screwed with the screw hole of the lower steel plate 2.
Referring to fig. 4, two openings of the upper steel plate 1 are used for locking the high-strength steel wire pier, further, in order to ensure stability and avoid displacement generated after the high-strength steel wire is loaded, spherical grooves are respectively machined in positions, corresponding to the inner ends of the two openings, of the upper steel plate 1, and the high-strength steel wire pier can be locked in the spherical grooves, so that loading slippage is avoided.
The notch of the lower steel plate 2 is matched with the nut 3 to fix the tail end of the high-strength steel wire, and likewise, in order to ensure stability and avoid displacement generated after the high-strength steel wire is loaded, positioning grooves matched with the end faces of the nut 3 are respectively processed at the positions corresponding to the inner ends of the two notches on the lower surface of the lower steel plate 2, so that the nut 3 can be clamped in the positioning grooves, and loading slippage is avoided.
In addition, the rotating rod 5 is preferably provided in a detachable fixing form, for example, a structure of being inserted and fixed in a radial perforation machined at the upper end of the threaded steel column 4 is adopted, so that the rotating rod 5 can be reused, and the clamp volume can be reduced by detaching the rotating rod 5.
The left side and the right side of the upper steel plate 1 of the clamp are provided with openings for loading and unloading high-strength steel wires, and spherical grooves are formed in the tops of the openings so as to position the head ends of the high-strength steel wire piers; the left and right sides of the lower steel plate 2 are provided with openings for loading and unloading the high-strength steel wires, and the bottoms of the openings are provided with positioning grooves so as to position nuts 3 connected with the tail ends of the high-strength steel wires; the step surface is processed at the position, close to the upper end, of the threaded steel column 4, the threaded steel column is attached to the lower surface of the upper steel plate 1 to achieve the function of supporting the deformation force of the high-strength steel wire, the lower end of the threaded steel column 4 is in threaded connection with the lower steel plate 2, the threaded steel column 4 is rotated through the rotating rod 5 to achieve the up-down movement of the threaded steel column 4, whether the step surface at the upper end of the threaded steel column 4 is attached to the lower surface of the upper steel plate 1 or not is controlled, the requirement of supporting and unloading is met, the exposed high-strength steel wire between the upper steel plate 1 and the lower steel plate 2 is made of a test material, the upper steel plate 1 is moved through the rotating threaded steel column 4 in the loading process to enable the high-strength steel wire to reach the loaded height, the tensile deformation of the high-strength steel wire is fixed, the whole clamp can easily load and unload the high-strength steel wire, and the position of the high-strength steel wire can be kept fixed after being loaded, and test researches on different working conditions are carried out on the high-strength steel wire.
The application process of the special fixture for loading and positioning the high-strength steel wire is as follows:
(1) Respectively enabling two high-strength steel wires to pass through the notch, attaching the high-strength steel wire pier heads to the upper steel plate 1, and clamping in the spherical groove;
(2) The tail end of the high-strength steel wire is connected with the lower steel plate 2 by two nuts 3 respectively, and the nuts 3 are clamped at the position of a positioning groove of the lower steel plate 2;
(3) Loading the upper steel plate 1 and the lower steel plate 2 by using an external loading device to deform the high-strength steel wire, and simultaneously, relatively displacing the upper steel plate 1 and the lower steel plate 2;
(4) The screw thread steel column 4 moves upwards by rotating the rotating rod 5 until the step surface is attached to the lower surface of the upper steel plate 1, and at the moment, the screw thread steel column 4 starts to support the high-strength steel wire to generate force required by deformation;
(5) Removing an external loading device, placing the clamp in a salt spray box, and performing tests on high-strength steel wires under different working conditions;
(6) After the test is completed, the clamp is removed from the salt spray box, and the screw steel column 4 is moved downwards by rotating the rotating rod 5, so that the force unloading task is completed;
(7) And taking down the nuts 3 at the tail ends of the high-strength steel wires, and taking down the high-strength steel wires from the openings of the upper top plate 1 and the lower top plate 2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. A special fixture for loading and positioning high-strength steel wires is characterized in that: the screw thread steel column comprises a high-strength steel wire positioning component and a screw thread steel column supporting component, the high-strength steel wire positioning component comprises an upper steel plate (1), a lower steel plate (2) and two nuts (3), the upper steel plate (1) and the lower steel plate (2) are correspondingly arranged at intervals in the vertical direction, a through hole is formed in the center of the upper steel plate (1), a screw hole is formed in the center of the lower steel plate (2), two opposite ends of the upper steel plate (1) and the lower steel plate (2) are respectively provided with a notch in an inwards concave manner, the inner side end of the notch is arranged into a semicircular arc surface, spherical grooves are respectively processed at positions corresponding to the upper surface of the upper steel plate (1) and the inner side ends of the two notches, positioning grooves matched with the end faces of the nuts (3) are respectively processed at the positions corresponding to the inner side ends of the two notches of the lower steel plate (2), the two nuts (3) are symmetrically arranged at two sides of the lower surface of the lower steel plate (2), the two nuts (3) are respectively matched with semicircular arc surfaces of the two notches of the lower steel plate (2) in a coaxial manner, the screw thread steel column supporting component comprises a threaded steel column (4) and a threaded steel column (4) which are in a threaded rod (4) and a threaded rod (5) and a threaded rod (4) which are in a threaded rod supporting position, the threaded rod (4) and the threaded rod (4) is screwed on the threaded steel column supporting rod (4), the application process of the special fixture for loading and positioning the high-strength steel wire comprises the following steps:
(1) Respectively enabling two high-strength steel wires to pass through the notch, attaching the high-strength steel wire pier heads to the upper steel plate (1), and clamping in the spherical groove;
(2) The tail end of the high-strength steel wire is connected with the lower steel plate (2) through two nuts (3) respectively, and the nuts (3) are clamped at the position of a positioning groove of the lower steel plate (2) at the same time;
(3) Loading the upper steel plate (1) and the lower steel plate (2) by using an external loading device to deform the high-strength steel wire, and simultaneously, relatively displacing the upper steel plate (1) and the lower steel plate (2);
(4) The screw thread steel column (4) moves upwards by rotating the rotating rod (5) until the step surface is attached to the lower surface of the upper steel plate (1), and at the moment, the screw thread steel column (4) starts to support the high-strength steel wire to generate force required by deformation;
(5) Removing an external loading device, placing the clamp in a salt spray box, and performing tests on high-strength steel wires under different working conditions;
(6) After the test is finished, the clamp is removed from the salt spray box, and the threaded steel column (4) is moved downwards by rotating the rotating rod (5) to finish the force unloading task;
(7) And (3) at the tail end of the high-strength steel wire is taken down, and the high-strength steel wire is taken down from the openings of the upper steel plate (1) and the lower steel plate (2).
2. The special fixture for loading and positioning of high-strength steel wires according to claim 1, wherein: the rotating rod (5) is in a detachable fixing mode and is inserted and fixed in a radial perforation pre-processed at the upper end of the threaded steel column (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210709071.3A CN114905442B (en) | 2022-06-21 | 2022-06-21 | Special fixture for loading and positioning high-strength steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210709071.3A CN114905442B (en) | 2022-06-21 | 2022-06-21 | Special fixture for loading and positioning high-strength steel wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114905442A CN114905442A (en) | 2022-08-16 |
| CN114905442B true CN114905442B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210709071.3A Active CN114905442B (en) | 2022-06-21 | 2022-06-21 | Special fixture for loading and positioning high-strength steel wire |
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|---|---|
| CN114905442A (en) | 2022-08-16 |
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