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
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
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- 150000003839 salts Chemical class 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
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- 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
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Abstract
一种高强钢丝加载定位专用夹具，涉及一种专用夹具。上部钢板与下部钢板在竖直方向间隔对应设置，上部钢板中心开设通孔，下部钢板中心开设螺孔，且上部钢板与下部钢板两相对端分别向内凹设有豁口，豁口内侧端设置为半圆弧面，两个螺母对称放置于下部钢板下表面两侧，且两个螺母分别与下部钢板的两个豁口的半圆弧面同轴配合，螺纹钢柱邻近上端位置加工有台阶面支撑在上部钢板下表面，螺纹钢柱上端伸出上部钢板的通孔并垂直固定有转动棒，螺纹钢柱下端加工有螺纹段与下部钢板的螺孔旋接配合。能够保证高强钢丝在加载后保持位移不变，同时方便进行高强钢丝的装卸工作，减少腐蚀产物的损失，有助于提高试验结果准确性。
A special clamp for loading and positioning high-strength steel wires, relating to a special clamp. The upper steel plate and the lower steel plate are arranged at corresponding intervals in the vertical direction. A through hole is provided in the center of the upper steel plate, and a screw hole is provided in the center of the lower steel plate. The opposite ends of the upper steel plate and the lower steel plate are respectively provided with notches recessed inward, and the inner end of the notch is set to half On the arc surface, two nuts are placed symmetrically on both sides of the lower surface of the lower steel plate, and the two nuts are coaxially matched with the semi-circular arc surfaces of the two gaps in the lower steel plate. The threaded steel column is processed with a step surface near the upper end to support it. On the lower surface of the upper steel plate, the upper end of the threaded steel column protrudes from the through hole of the upper steel plate and is vertically fixed with a rotating rod. The lower end of the threaded steel column is processed with a threaded section that screws together with the screw hole of the lower steel plate. It can ensure that the displacement of high-strength steel wire remains unchanged after loading, and at the same time facilitates the loading and unloading of high-strength steel wire, reduces the loss of corrosion products, and helps to improve the accuracy of test results.
Description
技术领域Technical field
本发明涉及一种专用夹具，尤其是一种高强钢丝加载定位专用夹具，属于材料力学测试技术领域。The invention relates to a special fixture, in particular to a special fixture for loading and positioning high-strength steel wires, which belongs to the technical field of material mechanics testing.
背景技术Background technique
盐雾试验中的交变荷载与静态荷载工况需要用到夹具组件，主要用于对加载之后的高强钢丝进行位移固定，使其仍保持加载时的应力。The alternating load and static load conditions in the salt spray test require the use of clamp components, which are mainly used to fix the displacement of the high-strength steel wire after loading so that it still maintains the stress during loading.
然而在现有的技术条件下，常规的夹具无法满足装卸方便的要求，同时，以前的夹具体积过大，不利于在盐雾箱内操作。因此，设计一种用于盐雾试验中对高强钢丝进行位移定位的专用夹具十分必要。However, under the existing technical conditions, conventional clamps cannot meet the requirements of convenient loading and unloading. At the same time, the previous clamps are too large and are not conducive to operation in the salt spray box. Therefore, it is necessary to design a special fixture for displacement positioning of high-strength steel wires in salt spray tests.
发明内容Contents of the invention
为解决背景技术存在的不足，本发明提供一种高强钢丝加载定位专用夹具，它能够保证高强钢丝在加载后保持位移不变，同时方便进行高强钢丝的装卸工作，减少腐蚀产物的损失，有助于提高试验结果准确性。In order to solve the shortcomings of the background technology, the present invention provides a special clamp for loading and positioning high-strength steel wires, which can ensure that the displacement of the high-strength steel wires remains unchanged after loading, and at the same time facilitates the loading and unloading of high-strength steel wires, reduces the loss of corrosion products, and helps To improve the accuracy of test results.
为实现上述目的，本发明采取下述技术方案：一种高强钢丝加载定位专用夹具，包括高强钢丝定位组件以及螺纹钢柱支撑组件，所述高强钢丝定位组件包括上部钢板、下部钢板及两个螺母，所述上部钢板与所述下部钢板在竖直方向间隔对应设置，上部钢板中心开设通孔，下部钢板中心开设螺孔，且上部钢板与下部钢板两相对端分别向内凹设有豁口，所述豁口内侧端设置为半圆弧面，所述两个螺母对称放置于下部钢板下表面两侧，且两个螺母分别与下部钢板的两个豁口的半圆弧面同轴配合，所述螺纹钢柱支撑组件包括螺纹钢柱及转动棒，所述螺纹钢柱邻近上端位置加工有台阶面支撑在上部钢板下表面，螺纹钢柱上端伸出上部钢板的所述通孔并垂直固定有转动棒，螺纹钢柱下端加工有螺纹段与下部钢板的所述螺孔旋接配合。In order to achieve the above object, the present invention adopts the following technical solution: a special clamp for high-strength steel wire loading and positioning, including a high-strength steel wire positioning assembly and a threaded steel column support assembly. The high-strength steel wire positioning assembly includes an upper steel plate, a lower steel plate and two nuts. , the upper steel plate and the lower steel plate are arranged correspondingly at intervals in the vertical direction, a through hole is provided in the center of the upper steel plate, a screw hole is provided in the center of the lower steel plate, and the opposite ends of the upper steel plate and the lower steel plate are respectively provided with gaps recessed inward, so The inner end of the gap is set as a semi-circular arc surface, the two nuts are symmetrically placed on both sides of the lower surface of the lower steel plate, and the two nuts are coaxially matched with the semi-circular arc surfaces of the two gaps of the lower steel plate, and the threads The steel column support assembly includes a threaded steel column and a rotating rod. The threaded steel column is processed with a step surface near the upper end and is supported on 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. , the lower end of the threaded steel column is processed with a threaded section that is screwed and matched with the screw hole of the lower steel plate.
与现有技术相比，本发明的有益效果是：本发明能够保证高强钢丝在加载后保持位移不变，同时方便进行高强钢丝的装卸工作，减少腐蚀产物的损失，有助于提高试验结果准确性，利用上部钢板的豁口对高强钢丝墩头进行卡定，利用下部钢板的豁口与螺母配合对高强钢丝尾端进行固定，固定形式简单合理，能够防止高强钢丝产生滑动位移，满足对于加载后的高强钢丝固定的要求，豁口的设计满足装卸高强钢丝简便的需求，有助于避免在拆卸过程中减少腐蚀产物的损失，中间采用螺纹钢柱支撑上部钢板和下部钢板，承受两侧高强钢丝的应力，能够减少左右方向上不对称位移的产生，确保两侧高强钢丝的应力误差在可接受范围内，通过可拆卸的转动棒控制螺纹钢柱的转动，可重复使用而且能够减小夹具体积，方便进行搬运与摆放。Compared with the existing technology, the beneficial effects of the present invention are: the present invention can ensure that the displacement of the high-strength steel wire remains unchanged after loading, and at the same time facilitates the loading and unloading of the high-strength steel wire, reduces the loss of corrosion products, and helps to improve the accuracy of test results. The high-strength steel wire pier head is fixed by using the gap in the upper steel plate, and the tail end of the high-strength steel wire is fixed by using the gap in the lower steel plate and the nut. The fixing form is simple and reasonable, which can prevent the high-strength steel wire from sliding displacement and meet the requirements for the load after loading. Requirements for fixing high-strength steel wires. The design of the gap meets the need for easy loading and unloading of high-strength steel wires, helping to avoid the loss of corrosion products during disassembly. Threaded steel columns are used in the middle to support the upper and lower steel plates to withstand the stress of the high-strength steel wires on both sides. , can reduce the occurrence of asymmetric displacement in the left and right directions, ensure that the stress error of the high-strength steel wires on both sides is within an acceptable range, and control the rotation of the threaded steel column through a detachable rotating rod, which is reusable and can reduce the size of the clamp, which is convenient Carry out transportation and placement.
附图说明Description of the drawings
图1是本发明的整体结构轴测图；Figure 1 is an isometric view of the overall structure of the present invention;
图2是图1的正视图；Figure 2 is a front view of Figure 1;
图3是图1的侧视图；Figure 3 is a side view of Figure 1;
图4是图1的俯视图；Figure 4 is a top view of Figure 1;
图5是本发明中高强钢丝定位组件的轴测图；Figure 5 is an isometric view of the high-strength steel wire positioning assembly in the present invention;
图6是本发明中螺纹钢柱支撑组件的轴测图。Figure 6 is an isometric view of the threaded steel column support assembly of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是发明的一部分实施例，而不是全部的实施例，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the invention, rather than all of the embodiments. Based on the present invention, All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
如图1～图6所示，一种高强钢丝加载定位专用夹具，包括高强钢丝定位组件以及螺纹钢柱支撑组件两大部分。As shown in Figures 1 to 6, a special fixture for high-strength steel wire loading and positioning includes two parts: a high-strength steel wire positioning component and a threaded steel column support component.
参照图5所示，所述高强钢丝定位组件包括上部钢板1、下部钢板2及两个螺母3，所述上部钢板1与所述下部钢板2在竖直方向间隔对应设置用于高强钢丝的装载定位，上部钢板1中心开设通孔，下部钢板2中心开设螺孔，且上部钢板1与下部钢板2两相对端分别向内凹设有豁口用于高强钢丝的塞入安装，所述豁口内侧端设置为半圆弧面有助于高强钢丝的贴合提升稳定性，所述两个螺母3对称放置于下部钢板2下表面两侧，且两个螺母3分别与下部钢板2的两个豁口的半圆弧面同轴配合。Referring to Figure 5, the high-strength steel wire positioning assembly includes 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 arranged correspondingly at intervals in the vertical direction for loading high-strength steel wires. Positioning, a through hole is opened in the center of the upper steel plate 1, a screw hole is opened in the center of the lower steel plate 2, and the two opposite ends of the upper steel plate 1 and the lower steel plate 2 are respectively provided with gaps inward for the insertion and installation of high-strength steel wires. The inner end of the gap It is set as a semi-circular arc surface to help the high-strength steel wire fit and improve stability. The two nuts 3 are symmetrically placed on both sides of the lower surface of the lower steel plate 2, and the two nuts 3 are respectively connected with the two notches of the lower steel plate 2. Semi-circular arc surface coaxial fit.
参照图6所示，所述螺纹钢柱支撑组件包括螺纹钢柱4及转动棒5，所述螺纹钢柱4邻近上端位置加工有台阶面，所述转动棒5与螺纹钢柱4上端垂直固定，螺纹钢柱4下端加工有螺纹段。Referring to Figure 6, the rebared steel column support assembly includes a rebared steel column 4 and a rotating rod 5. The rebared steel column 4 is processed with a step surface near its upper end. The rotating rod 5 is vertically fixed to the upper end of the rebared steel column 4. , the lower end of the threaded steel column 4 is processed with a threaded section.
参照图1～图4所示，螺纹钢柱4的台阶面支撑在上部钢板1下表面，螺纹钢柱4上端伸出上部钢板1的所述通孔，螺纹钢柱4下端的螺纹段与下部钢板2的所述螺孔旋接配合。Referring to Figures 1 to 4, the step surface of the threaded steel column 4 is supported on the lower surface of the upper steel plate 1, the upper end of the threaded steel column 4 extends out of the through hole of the upper steel plate 1, and the threaded section at the lower end of the threaded steel column 4 is connected to the lower part The screw holes of the steel plate 2 are screwed together.
参照图4所示，上部钢板1的两个豁口用于高强钢丝墩头的卡定，进一步的，为保证稳定避免高强钢丝加载后产生位移，上部钢板1上表面与两个豁口内侧端对应位置分别加工有球面凹槽，高强钢丝墩头能够卡定在所述球面凹槽内，从而避免加载滑移的产生。Referring to Figure 4, the two notches in the upper steel plate 1 are used to lock the high-strength steel wire pier heads. Furthermore, in order to ensure stability and avoid displacement after the high-strength steel wire is loaded, the upper surface of the upper steel plate 1 corresponds to the inner ends of the two notches. Spherical grooves are processed respectively, and the high-strength steel wire pier heads can be locked in the spherical grooves to avoid load slippage.
下部钢板2的豁口与螺母3配合对高强钢丝尾端进行固定，同样的，为保证稳定避免高强钢丝加载后产生位移，下部钢板2下表面与两个豁口内侧端对应位置分别加工有与螺母3端面配合的定位凹槽，使螺母3能够卡定在所述定位凹槽内，从而避免加载滑移的产生。The gap in the lower steel plate 2 cooperates with the nut 3 to fix the tail end of the high-strength steel wire. Similarly, in order to ensure stability and avoid displacement after the high-strength steel wire is loaded, the lower surface of the lower steel plate 2 and the corresponding inner ends of the two gaps are processed with nuts 3 respectively. The end-face matching positioning groove enables the nut 3 to be locked in the positioning groove, thereby avoiding the occurrence of loading slippage.
此外，转动棒5宜设置为为可拆卸固定形式，比如采用插装固定在螺纹钢柱4上端预加工的径向穿孔内的结构，不仅可重复使用，而且拆下转动棒5能够减小夹具体积。In addition, the rotating rod 5 should be set in a detachable and fixed form, such as a structure that is inserted and fixed in the pre-processed radial perforation on the upper end of the threaded steel column 4. Not only can it be reused, but also the removal of the rotating rod 5 can reduce the size of the clamp. volume.
夹具的上部钢板1左右两侧设置的豁口用于装卸高强钢丝，在豁口顶部设置球面凹槽以便于定位高强钢丝墩头端；下部钢板2左右两侧设置的豁口用于装卸高强钢丝，在豁口底部设置定位凹槽以便于定位与高强钢丝尾端连接的螺母3；螺纹钢柱4邻近上端位置加工有台阶面，通过其与上部钢板1下表面贴合，以达到支撑高强钢丝形变的力的功能，螺纹钢柱4下端与下部钢板2螺纹连接，通过转动棒5转动螺纹钢柱4实现螺纹钢柱4的上下移动，控制螺纹钢柱4上端的台阶面与上部钢板1下表面贴合与否，完成支撑和卸载的要求，上部钢板1与下部钢板2之间裸露的高强钢丝为试验材料，加载过程中通过转动螺纹钢柱4对上部钢板1进行移动，使其达到高强钢丝加载后的高度，对高强钢丝的拉伸形变进行固定，夹具整体既可以轻松装卸高强钢丝，又可以保证高强钢丝加载后的位置保持固定，从而对高强钢丝进行不同工况的试验研究。The gaps provided on the left and right sides of the upper steel plate 1 of the clamp are used for loading and unloading high-strength steel wires, and a spherical groove is provided on the top of the gap to facilitate the positioning of the head end of the high-strength steel wire pier; the gaps provided on the left and right sides of the lower steel plate 2 are used for loading and unloading high-strength steel wires. A positioning groove is provided at the bottom to facilitate the positioning of the nut 3 connected to the tail end of the high-strength steel wire; the threaded steel column 4 is processed with a step surface near the upper end, through which it fits the lower surface of the upper steel plate 1 to achieve the force of supporting the deformation of the high-strength steel wire. Function, the lower end of the threaded steel column 4 is threadedly connected to the lower steel plate 2, and the threaded steel column 4 is rotated by the rotating rod 5 to realize the up and down movement of the threaded steel column 4, and the stepped surface of the upper end of the threaded steel column 4 is controlled to fit with the lower surface of the upper steel plate 1. No, to complete the support and unloading requirements, the exposed high-strength steel wire between the upper steel plate 1 and the lower steel plate 2 is the test material. During the loading process, the upper steel plate 1 is moved by rotating the threaded steel column 4 to make it reach the position after the high-strength steel wire is loaded. height to fix the tensile deformation of the high-strength steel wire. The entire fixture can not only easily load and unload the high-strength steel wire, but also ensure that the position of the high-strength steel wire remains fixed after loading, thereby conducting experimental research on the high-strength steel wire under different working conditions.
高强钢丝加载定位专用夹具的使用过程如下：The use process of high-strength steel wire loading and positioning special fixture is as follows:
(1)分别将两根高强钢丝通过豁口，高强钢丝墩头与上部钢板1贴合，卡定在球面凹槽内；(1) Pass the two high-strength steel wires through the gap, fit the high-strength steel wire pier head to the upper steel plate 1, and lock it in the spherical groove;
(2)分别用两个螺母3将高强钢丝尾端与下部钢板2连接在一起，同时将螺母3卡定于下部钢板2的定位凹槽位置；(2) Use two nuts 3 to connect the end of the high-strength steel wire and the lower steel plate 2, and at the same time lock the nuts 3 in the positioning groove of the lower steel plate 2;
(3)使用外部加载装置加载上部钢板1和下部钢板2，让高强钢丝产生形变，同时上部钢板1和下部钢板2产生相对位移；(3) Use an external loading device to load the upper steel plate 1 and the lower steel plate 2, causing the high-strength steel wire to deform, and at the same time the upper steel plate 1 and the lower steel plate 2 to produce relative displacement;
(4)通过旋转转动棒5使螺纹钢柱4向上移动，直至台阶面与上部钢板1下表面贴合，此时螺纹钢柱4开始支撑高强钢丝产生形变需要的力；(4) By rotating the rotating rod 5, the threaded steel column 4 moves upward until the step surface fits the lower surface of the upper steel plate 1. At this time, the threaded steel column 4 begins to support the high-strength steel wire to generate the force required for deformation;
(5)外部加载装置移除，将夹具放置在盐雾箱内部，对高强钢丝进行不同工况的试验；(5) The external loading device is removed, the fixture is placed inside the salt spray box, and the high-strength steel wire is tested under different working conditions;
(6)待完成试验后，将夹具从盐雾箱内去除，通过旋转转动棒5使螺纹钢柱4向下移动，完成卸力任务；(6) After the test is completed, remove the clamp from the salt spray box, and rotate the rotating rod 5 to move the threaded steel column 4 downward to complete the unloading task;
(7)将高强钢丝尾端的螺母3取下，并将高强钢丝从上部顶板1和下部顶板2的豁口内取下。(7) Remove the nut 3 at the end of the high-strength steel wire, and remove the high-strength steel wire from the gap between the upper top plate 1 and the lower top plate 2.
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的装体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同条件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and range of equivalents are encompassed by the present invention. Any reference signs in the claims shall not be construed as limiting the claim in question.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole. , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
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