Wire hardness testing device and wire hardness testing method
By designing a wire soft and hard test device including a support plate and a semicircular angle ruler, the problem that the prior art is difficult to efficiently test the soft and hardness of wires under extreme conditions is solved, and a fast, accurate and low-cost test effect is achieved.
Patent Information
- Application Number
- CN202411825518.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-03-21
AI Technical Summary
The prior art is difficult to test the softness and hardness of wires at low cost and efficiently under extreme conditions, and the detection standards are not standardized, the equipment is complex and the operation is difficult.
A wire soft and hard test device is designed, including a support plate and a semicircular angle ruler. The wire to be tested is fixed by the first positioning member and the second positioning member so that it can undergo temperature resistance test under extreme conditions, and measure the sag of the wire to judge the soft and hardness.
It realizes the rapid and accurate testing of the softness and hardness of the wire under extreme conditions. The device is simple in structure, easy to operate and low in cost, and is suitable for large-scale production and application.
Smart Images
Figure CN119666532A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wire and cable manufacturing, and in particular to a wire hardness and softness testing device and a wire hardness testing method. Background Art
[0002] The wires and cables have solid or twisted conductors inside, and are extruded with polyethylene, polyvinyl chloride mixtures, rubber and other materials on the surface. The insulating materials coated on the surface will harden or even crack at low temperatures. Different sources of insulating materials have different ingredients and additives, and even the hardness of wires and cables produced from different batches from the same source varies greatly. Too much hardness affects downstream assembly, so it is necessary to test the hardness of wires and cables in low temperature environments to control product quality consistency.
[0003] At present, there is still no relevant testing standard for the hardness of wires on the market. Although there are some testing instruments on the market, the testing standards of these testing instruments are slightly modified based on the industry standards of other materials, and the testing is not standard. In addition, non-standard testing equipment is also made with reference to other industry standards to test the bending stiffness value of wires. However, the equipment is relatively complex and has precision sensors inside. The test conditions can only be at room temperature, and a high level of operation is required to obtain accurate test results, which has the problem of high cost.
[0004] Therefore, current wire testing equipment is still unable to perform efficient testing at low cost under extreme conditions. Summary of the invention
[0005] The purpose of the present invention is to avoid the shortcomings of the prior art and provide a wire hardness testing device, which can test the hardness of wires under extreme conditions and has the advantages of simple structure, easy operation and low cost.
[0006] To achieve one of the above purposes, the present invention provides the following technical solutions:
[0007] A wire hardness test device disclosed in this embodiment is provided, comprising a support plate, the support plate being perpendicular to a horizontal plane, and a test assembly being arranged on the support plate.
[0008] The test assembly comprises a semicircular protractor disposed on the support plate, the semicircular protractor comprising a straight edge and an arc-shaped measuring edge, the straight edge is parallel to the horizontal plane, and the arc-shaped measuring edge is close to the bottom edge of the support plate;
[0009] A first positioning piece is provided in the middle of the straight edge, for fixing the middle of the wire to be tested;
[0010] The two ends of the straight edge are respectively provided with second positioning pieces, which are used to fix and tighten the two ends of the wire to be tested;
[0011] When the wire to be tested is treated with extreme conditions and is separated from the second positioning member, weights are hung on both ends of the wire to be tested to make the wire to be tested sag, and the semicircular protractor shows the sag of the wire to be tested.
[0012] The support plate needs to be perpendicular to the horizontal plane, and the semicircular protractor is set on the support plate, so the semicircular protractor is also perpendicular to the horizontal plane, and the straight edge of the semicircular protractor is set parallel to the horizontal plane, and the arc-shaped measuring edge of the semicircular protractor is close to the bottom edge of the support plate. When one end of the wire sags, the sag of the wire can be measured, and the sag can be directly reflected on the semicircular protractor.
[0013] Therefore, when in use, the first positioning member and the second positioning member are used to extend and fix the wire to be tested along the straight edge of the semicircular protractor. At this time, the straightened wire to be tested and the entire device can be placed under extreme conditions for temperature resistance testing, thereby achieving extreme condition testing and making the test results more accurate. After the test, the second positioning member is used to loosen the two ends of the wire to be tested, and weights are hung on both ends of the wire to observe the sag of the wire after being treated under extreme conditions, so as to judge the hardness of the wire. The entire device has a simple structure and is easy to move, and can adapt to various environments for testing.
[0014] In some embodiments, the first positioning member includes a collar and a first counter screw.
[0015] The ferrule is fixed on the support plate, the axis of the ferrule extends along the direction of the straight edge, and the first abutting screw passes through the side wall of the ferrule and presses against the side of the wire to be tested that passes through the ferrule.
[0016] The ring is fixed on the support plate to achieve the positioning function, and the middle part of the wire passes through the ring and is positioned on the plate surface of the support plate. The wire to be tested is stably clamped in the ring by the screwing action of the first counter screw, thereby achieving the function of positioning the wire. When the wire needs to be replaced, just loosen the first counter screw.
[0017] In some embodiments, the second positioning member includes a sleeve cap, a second counter screw and a tensioning member.
[0018] The cap is sleeved on the end of the wire to be tested, the second counter screw passes through the cap and presses the side of the wire to be tested inside the cap, and the tensioning member is connected to the cap and straightens the wire to be tested along the extension direction of the straight edge.
[0019] The cap is firstly sleeved on the end of the wire to be tested, and then the end of the wire to be tested is fixed on the cap by screwing in the second abutting screw, and then the tensioning member can straighten the wire to be tested through the cap.
[0020] In some embodiments, the tensioning member includes a spring and a screw, wherein the screw is fixed to two ends of the straight edge, one end of the spring is fixed to the screw, and the other end of the spring is detachably connected to the sleeve cap.
[0021] Screw rods are arranged at both ends of the straight edge, and one end of the spring can be positioned by being fixed on the screw rod. The other end of the spring is connected to the sleeve cap, and the tensioning force of the spring itself can be used to straighten the wire to be tested.
[0022] In some embodiments, a plurality of screw holes are respectively provided at both ends of the straight side, and the plurality of screw holes are distributed in a straight line along the extension direction of the straight side, and the screw rod can be detachably installed in each screw hole.
[0023] Since a plurality of screw holes are distributed in a straight line along the extension direction of the straight edge, different positions of the spring can be adjusted when the screw rod is inserted into different screw holes, so that the spring can tighten the wires to be tested of different lengths, thereby ensuring the straightness of each wire to be tested and ensuring the test effect.
[0024] In some embodiments, a hook is provided on the cap, and the spring or the weight is hooked on the hook.
[0025] By arranging a draw hook on the sleeve cap, when the spring needs to be connected, one end of the spring can be directly hung on the draw hook, and when the weight needs to be hung, the weight can be directly hung on the draw hook, thereby achieving convenient operation.
[0026] In some embodiments, the measuring range of the arc measuring edge is divided into a first measuring range and a second measuring range, the first measuring range and the second measuring range are symmetrically arranged on both sides of the symmetry axis of the semicircular protractor, each measuring range is 0 to 90° and gradually increases from the end of the arc measuring edge toward the symmetry axis.
[0027] Because when the wire to be measured is released from the second positioning piece, only the middle part of the wire to be measured is fixed, and both ends of the wire to be measured will sag at this time. In order to be able to read the sag of both ends of the wire to be measured at the same time, the range of the arc-shaped measuring edge is divided into a first range and a second range. The first range and the second range are symmetrically arranged on both sides of the symmetry axis of the semicircular protractor, and each range is 0~90° and gradually increases from the end of the arc-shaped measuring edge to the direction of the symmetry axis.
[0028] In some embodiments, the base is configured as a flat plate, and a height adjustment screw is disposed on the flat plate.
[0029] The base is set as a flat plate so that the support plate and the base are arranged in a T-shape, which facilitates the vertical placement of the support plate.
[0030] And the height adjustment screw is used to adjust the height of the flat plate.
[0031] In some embodiments, the test components are respectively provided on the front and back of the support plate. By providing multiple test components, multiple wires can be tested at the same time, which improves the test efficiency on the one hand, and most importantly, by comparing the test results of the wires on the two test components, it can be determined whether there is a large error in the test result, thereby ensuring the accuracy of the test.
[0032] Beneficial effects of the wire hardness test device of the present invention:
[0033] (1) The wire hardness test device of the present invention makes the support plate perpendicular to the horizontal plane, and a semicircular protractor is arranged on the support plate. The wire to be tested is extended and fixed along the straight edge of the semicircular protractor by the first positioning member and the second positioning member. At this time, the straightened wire to be tested and the entire device can be placed under extreme conditions for temperature resistance testing, thereby achieving extreme condition testing and making the test results more accurate. After the test, the second positioning member loosens the two ends of the wire to be tested, and by hanging weights on the two ends of the wire, the droop of the wire after being treated under extreme conditions is observed, thereby determining the hardness of the wire. The entire device has a simple structure and is easy to move. It can adapt to various environments for testing, thereby ensuring the test effect of the wire and being suitable for large-scale production and application.
[0034] (2) The wire hardness testing device of the present invention can set the wire hardness at different temperatures to compare the hardness, thereby improving the test effect. It can also complete the straightening and testing of the wire without removing the wire, thus avoiding multiple moves and disassembly of the sample, which affects the test temperature, and effectively simplifies the test and increases the test temperature. Furthermore, the deformation of the wire can be directly read on the protractor, thereby improving the test efficiency.
[0035] (3) The wire hardness and softness testing device of the present invention has a compact and simple structure and requires low operation skills. It is suitable for testing in different environments or even in sub-zero environments and is easy to carry.
[0036] To achieve the second objective above, the present invention provides the following technical solutions:
[0037] Beneficial effects of the wire hardness testing method of the present invention:
[0038] The wire hardness testing method of the present invention can accurately detect the hardness of the wire through the wire hardness testing device, and the hardness of the wire can be obtained only by clamping the wire, hanging weights and reading a semicircular protractor. It has the advantage of easy operation and is suitable for large-scale production and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] Figure 1 It is a front view of the wire softness and hardness testing device according to an embodiment of the present invention.
[0040] Figure 2 It is a side view of a wire hardness and softness testing device according to an embodiment of the present invention.
[0041] Figure 3 4 is a top view of a wire hardness and softness testing device according to an embodiment of the present invention.
[0042] Figure 4 Schematic diagram of the wire softness and hardness testing device according to an embodiment of the present invention without placing a wire.
[0043] Figure 5 Schematic diagram of placing wires in a wire softness and hardness testing device according to an embodiment of the present invention.
[0044] Reference numerals
[0045] 1. Support plate; 2. Semicircular protractor; 3. Arc measuring edge; 4. Straight edge; 5. First positioning piece; 6. Second positioning piece; 7. Weight; 8. Ring; 9. First counter screw; 10. Cap; 11. Second counter screw; 12. Spring; 13. Screw; 14. Screw hole; 15. Hook; 16. First measuring range; 17. Second measuring range; 18. Wire; 19. Plate; 20. Height adjustment screw. DETAILED DESCRIPTION
[0046] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.
[0047] The terms used in the present invention are only for the purpose of describing specific implementation regulations, and are not intended to limit the present invention. The singular forms "a", "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.
[0048] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0049] Example 1
[0050] The wires and cables have solid or twisted conductors inside, and are extruded with polyethylene, polyvinyl chloride mixtures, rubber and other materials on the surface. The insulating materials coated on the surface will harden or even crack at low temperatures. Different sources of insulating materials have different ingredients and additives, and even the hardness of wires and cables produced from different batches from the same source varies greatly. Too much hardness affects downstream assembly, so it is necessary to test the hardness of wires and cables in low temperature environments to control product quality consistency.
[0051] At present, there is still no relevant testing standard for the hardness of wire 18 on the market. Although there are some testing instruments on the market, the testing standards of these testing instruments are slightly modified based on the industry standards of other materials, and the testing is not standard. In addition, non-standard testing equipment is also made with reference to other industry standards to test the bending stiffness value of wire 18, but the equipment is more complicated and has precision sensors inside. The test conditions can only be at room temperature, and a high level of operation is required to obtain accurate test results, which has the problem of high cost.
[0052] Therefore, current wire 18 testing equipment is still unable to perform efficient testing at low cost under extreme conditions.
[0053] For this technical question, please refer to Figure 1 to Figure 5 This embodiment discloses a wire 18 softness and hardness testing device, comprising a support plate 1, wherein the support plate 1 is perpendicular to a horizontal plane, and a test component is arranged on the support plate 1.
[0054] The test assembly comprises a semicircular protractor 2 disposed on the support plate 1, the semicircular protractor 2 comprising a straight edge 4 and an arc-shaped measuring edge 3, the straight edge 4 is parallel to the horizontal plane, and the arc-shaped measuring edge 3 is close to the bottom edge of the support plate 1;
[0055] A first positioning member 5 is provided in the middle of the straight edge 4 for fixing the middle of the wire 18 to be tested;
[0056] The two ends of the straight edge 4 are respectively provided with second positioning members 6 for fixing and tightening the two ends of the wire 18 to be tested;
[0057] When the wire 18 to be tested is subjected to extreme conditions and is separated from the second positioning member 6 , weights 7 are hung on both ends of the wire 18 to make the wire 18 to be tested sag, and the semicircular protractor 2 displays the sag of the wire 18 to be tested.
[0058] The support plate 1 needs to be perpendicular to the horizontal plane, and the semicircular protractor 2 is set on the support plate 1, so the semicircular protractor 2 is also perpendicular to the horizontal plane, and the straight edge 4 of the semicircular protractor 2 is set parallel to the horizontal plane, and the arc-shaped measuring edge 3 of the semicircular protractor 2 is close to the bottom edge of the support plate 1. When one end of the wire 18 droops, the droop degree of the wire 18 can be measured, and the droop degree can be directly reflected on the semicircular protractor 2.
[0059] Therefore, when in use, the first positioning member 5 and the second positioning member 6 are used to extend and fix the wire 18 to be tested along the straight edge 4 of the semicircular protractor 2. At this time, the straightened wire 18 to be tested and the entire device can be placed under extreme conditions for temperature resistance testing, thereby achieving extreme condition testing and making the test results more accurate. After the test, the second positioning member 6 is used to loosen the two ends of the wire 18 to be tested, and weights 7 are hung at both ends of the wire 18 to observe the sag of the wire 18 after being treated under extreme conditions, so as to judge the hardness of the wire 18. The entire device has a simple structure and is easy to move, and can adapt to various environments for testing.
[0060] Specifically,
[0061] The support plate 1 must be placed perpendicular to the horizontal plane to ensure that the semicircular protractor 2 is also perpendicular to the horizontal plane.
[0062] The straight edge 4 of the semicircular protractor 2 should be parallel to the horizontal plane, and the arc-shaped measuring edge 3 should be close to the bottom edge of the support plate 1, so as to measure the sag of the wire 18. The first positioning member 5 and the second positioning member 6 are used to extend and fix the wire 18 to be tested along the straight edge 4 of the semicircular protractor 2, ensuring that the wire 18 maintains the correct position during the test. The straightened wire 18 to be tested and the entire device are placed under extreme conditions for temperature resistance testing to achieve extreme condition testing and improve the accuracy of the test results.
[0063] After the test, the second positioning member 6 is used to loosen the two ends of the wire 18 to be tested, and weights 7 are hung on the two ends of the wire 18 to observe the sag of the wire 18 after being treated under extreme conditions.
[0064] In this embodiment, the first positioning member 5 includes a ferrule 8 and a first abutting screw 9.
[0065] The ferrule 8 is fixed on the support plate 1 , and the axis of the ferrule 8 extends along the direction of the straight edge 4 . The first counter screw 9 passes through the side wall of the ferrule 8 and presses against the side of the wire 18 to be tested that passes through the ferrule 8 .
[0066] The ring 8 is fixed on the support plate 1 to achieve the positioning function, and the middle part of the wire 18 passes through the ring 8 and is positioned on the plate surface of the support plate 1. The first counter screw is screwed in to stably clamp the wire 18 to be tested in the ring 8 to achieve the positioning function of the wire 18. When the wire 18 needs to be replaced, loosen the first counter screw 9.
[0067] Specifically, the ferrule 8 is fixed on the support plate 1, and the function of the ferrule 8 is to serve as a reference for positioning the wire 18. The middle part of the wire 18 passes through the ferrule 8, so that the wire 18 is positioned on the surface of the support plate 1. By screwing in the first counter screw 9 and utilizing its pushing force, the wire 18 to be tested is stably clamped in the ferrule 8 to ensure that the wire 18 will not be displaced or rotated during the test. When the wire 18 needs to be replaced, just loosen the first counter screw 9, and the wire 18 can be taken out of the ferrule 8, which is convenient for quickly replacing the wire 18 to be tested. The first counter screw 9 provides sufficient clamping force to ensure the stability of the wire 18 during the test and avoid affecting the test results due to the movement or vibration of the wire 18.
[0068] In this embodiment, the second positioning member 6 includes a sleeve cap 10, a second counter screw 11 and a tensioning member.
[0069] The cap 10 is sleeved on the end of the wire 18 to be tested, the second counter screw 11 passes through the cap 10 and presses against the side of the wire 18 to be tested inside the cap 10, and the tensioning member is connected to the cap 10 and straightens the wire 18 to be tested along the extension direction of the straight edge 4.
[0070] The cap 10 is firstly put on the end of the wire 18 to be tested, and then the end of the wire 18 to be tested is fixed on the cap 10 by screwing in the second abutting screw 11 , and then the tensioning member can straighten the wire 18 to be tested through the cap 10 .
[0071] Specifically,
[0072] The cap 10 is put on the end of the wire 18 to be tested. The function of the cap 10 is to serve as a fixing point for the end of the wire 18. By screwing in the second counter screw 11, the end of the wire 18 to be tested is fixed on the cap 10 by utilizing its pushing force. This ensures that the end of the wire 18 will not be displaced during the test. Use a tensioning piece to straighten the wire 18 to be tested through the cap 10. The second counter screw 11 provides sufficient clamping force to ensure the stability of the end of the wire 18 during the test and avoid affecting the test results due to the movement or vibration of the wire 18. By using the tensioning piece and the cap 10 in combination, it can be ensured that the wire 18 remains in a straight state during the test, which is crucial to ensure the accuracy of the test data.
[0073] In this embodiment, the tensioning member includes a spring 12 and a screw 13. The screw 13 is fixed to both ends of the straight edge 4. One end of the spring 12 is fixed to the screw 13, and the other end of the spring 12 is detachably connected to the sleeve cap 10.
[0074] Screw rods 13 are provided at both ends of the straight edge 4, and one end of the spring 12 can be positioned by being fixed on the screw rod 13, and the other end of the spring 12 can be connected to the sleeve cap 10 so that the tensioning force of the spring 12 itself can be used to straighten the wire 18 to be tested.
[0075] Specifically,
[0076] Screws 13 are provided at both ends of the straight edge 4. The screws 13 are used to fix one end of the spring 12 to ensure that the spring 12 can be stably installed on the device. One end of the spring 12 is fixed on the screw 13. The other end of the spring 12 is connected to the cap 10. The cap 10 is used to cover the end of the wire 18 to be tested. The spring 12 is connected to the end of the wire 18 through the cap 10. The tension of the spring 12 can be adjusted as needed to meet the straightening requirements of different wires 18.
[0077] Positioning and straightening of wire 18:
[0078] In this embodiment, a plurality of screw holes 14 are respectively disposed at both ends of the straight edge 4 . The screw holes 14 are distributed in a straight line along the extending direction of the straight edge 4 . The screw rods 13 are detachably installed in the screw holes 14 .
[0079] Since the thicker the wire 18 is, the longer the wire 18 is required, a plurality of screw holes 14 are distributed in a straight line along the extension direction of the straight edge 4. Therefore, when the screw rod 13 is inserted into different screw holes 14, the different positions of the spring 12 can be adjusted, so that the spring 12 can tighten the wires 18 to be tested of different lengths, thereby ensuring the straightness of each wire 18 to be tested and ensuring the test effect.
[0080] Specifically, in the extension direction of the straight edge 4, a plurality of screw holes 14 are distributed along a straight line. These screw holes 14 are used for inserting the screw rod 13 to adjust the position of the spring 12. The screw rod 13 can be inserted into different screw holes 14 according to the length of the wire 18 to be tested. This design allows the screw rod 13 to move along the straight edge 4 to accommodate wires 18 of different lengths. By changing the position of the screw rod 13 on the straight edge 4, the position of the spring 12 connected to the other end of the screw rod 13 can be adjusted. This adjustment ensures that the spring 12 can apply appropriate tension to the wires 18 of different lengths to be tested.
[0081] By adjusting the position of the spring 12, it can be ensured that the wire 18 of various lengths to be tested can be straightened, thereby ensuring the consistency and reliability of the test results. The design of the device provides a high degree of flexibility, and the operator can quickly adjust the position of the spring 12 according to the specific length of the wire 18 to be tested without replacing or reconfiguring other components. The design of the device reduces the need for additional components.
[0082] In this embodiment, a hook 15 is provided on the cover cap 10 , and the spring 12 or the weight 7 is hooked on the hook 15 .
[0083] By arranging the hook 15 on the sleeve cap 10, when the spring 12 needs to be connected, one end of the spring 12 can be directly hung on the hook 15, and when the weight 7 needs to be hung, the weight 7 can be directly hung on the hook 15, so that the operation is convenient.
[0084] Specifically,
[0085] A hook 15 is provided on the cap 10, and the hook 15 is used to hang one end of the spring 12 or the weight 7. When the spring 12 needs to be connected, one end of the spring 12 is directly hung on the hook 15. Such a design simplifies the installation process of the spring 12, and no additional fixing or clamping operation is required. When the weight 7 needs to be hung, the weight 7 can also be directly hung on the same hook 15. This makes it very convenient to add or replace the weight 7 during the test. The weight of the weight 7 is selected according to the characteristics of the wire 18.
[0086] In this embodiment, the measuring range of the arc measuring edge 3 is divided into a first measuring range 16 and a second measuring range 17. The first measuring range 16 and the second measuring range 17 are symmetrically arranged on both sides of the symmetry axis of the semicircular protractor 2. Each measuring range is 0 to 90° and gradually increases from the end of the arc measuring edge 3 toward the symmetry axis.
[0087] When the measured wire 18 is released from the second positioning member 6, only the middle part of the measured wire 18 is fixed. At this time, both ends of the measured wire 18 will sag. In order to simultaneously read the sag of both ends of the measured wire 18, the measuring range of the arc measuring edge is divided into a first measuring range 16 and a second measuring range 17. The first measuring range 16 and the second measuring range 17 are symmetrically arranged on both sides of the symmetry axis of the semicircular protractor 2. Each measuring range is 0 to 90° and gradually increases from the end of the arc measuring edge 3 toward the symmetry axis.
[0088] Specifically, the arc measuring edge of the semicircular protractor 2 is divided into two ranges, namely the first range 16 and the second range 17. The first range 16 and the second range 17 are symmetrically arranged on both sides of the symmetry axis of the semicircular protractor 2, so that the sag at both ends of the wire 18 to be measured can be measured simultaneously. The range of each range is 0 to 90°, and such a design can cover the sag measurement from completely vertical to completely horizontal. The range gradually increases from the end of the arc measuring edge 3 toward the direction of the symmetry axis, which is convenient for the operator to read the sag angle of the wire 18. Using the first range 16 and the second range 17, the sag at both ends of the wire 18 to be measured can be read simultaneously, providing a symmetrical and comprehensive measurement method. The operator can directly read the readings on the two ranges without the need for additional measuring tools or complex calculations.
[0089] The wire 18 softness and hardness testing device according to claim 1 is characterized in that the base is configured as a flat plate 19, a height adjustment screw 2013 is provided on the flat plate 19, and the height adjustment screw 2013 is used to adjust the height of the flat plate 19.
[0090] The base is set as a flat plate 19 so that the support plate 1 and the base are arranged in a T-shape, which facilitates the vertical placement of the support plate 1, and the height adjustment screw 2013 is used to adjust the height of the flat plate 19.
[0091] In this embodiment, the test components are respectively provided on the front and back of the support plate 1. By providing multiple test components, multiple wires 18 can be tested at the same time, which improves the test efficiency on the one hand, and most importantly, by comparing the test results of the wires 18 on the two test components, it can be determined whether there is a large error in the test result, thereby ensuring the accuracy of the test.
[0092] Specifically, by testing multiple wires 18 in parallel, the total time required to complete all tests can be significantly reduced. By comparing the wire 18 test results on different test assemblies, possible systematic errors or outliers can be identified. Testing multiple samples simultaneously allows for easier quality control and consistency checks. Standardized test environments and conditions reduce human errors during operation.
[0093] If the results of some test components are found to deviate significantly from those of other components, perform a deviation analysis to determine whether retesting or adjustment of test conditions is necessary.
[0094] Example 2
[0095] To illustrate the use of the wire 18 hardness test device of Example 1, the wire 18 hardness test is performed by the following method, including the following steps:
[0096] Fix the middle of the wire 18 to be tested on the first positioning member 5, and fix both ends of the wire 18 to be tested on the second positioning members 6, so that the wire 18 to be tested extends along the straight edge 4;
[0097] The wire 18 softness and hardness testing device with the wire 18 to be tested fixed thereon is placed under extreme conditions for testing. After the test, the two ends of the wire 18 to be tested are released from the second positioning member 6, so that the wire 18 to be tested is positioned on the first positioning member 5, and the weights 7 are hung at both ends of the wire 18 to be tested, and the drooping angle of the wire 18 is read on the semicircular protractor. The larger the reading, the better the softness of the wire 18.
[0098] Specifically,
[0099] The middle of the wire 18 to be tested is fixed on the first positioning member 5 to ensure that the wire 18 can stably extend along the straight edge 4. The two ends of the wire 18 to be tested are fixed on the second positioning member 6 respectively, so that the wire 18 is completely fixed and extends along the straight edge 4. The entire test device with the wire 18 to be tested is placed under extreme conditions for testing, such as high temperature, low temperature, humidity or other environmental factors. After the test is completed, the two ends of the wire 18 to be tested are released from the second positioning member 6, so that the wire 18 is only fixed in the middle by the first positioning member 5. Weights 7 are hung on the two ends of the wire 18 to be tested. The droop angle of the wire 18 is read on the semicircular protractor. The range of the semicircular protractor should be sufficient to cover the range from 0° to 90° to measure the droop angle of the wire 18. The softness of the wire 18 is evaluated based on the droop angle read. The larger the reading, the greater the droop of the wire 18 under load, and therefore the better the softness.
[0100] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0101] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0102] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0103] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.
[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A wire hardness test device, characterized in that: It includes a support plate, the support plate is perpendicular to the horizontal plane, and a test assembly is arranged on the support plate. The test assembly comprises a semicircular protractor disposed on the support plate, the semicircular protractor comprising a straight edge and an arc-shaped measuring edge, the straight edge is parallel to the horizontal plane, and the arc-shaped measuring edge is close to the bottom edge of the support plate; A first positioning piece is provided in the middle of the straight edge, for fixing the middle of the wire to be tested; The two ends of the straight edge are respectively provided with second positioning pieces, which are used to fix and tighten the two ends of the wire to be tested; When the wire to be tested is subjected to extreme conditions and is separated from the second positioning member, weights are hung on both ends of the wire to be tested to cause the wire to be tested to sag, and the semicircular protractor reads the sag of the wire to be tested.
2. The wire hardness test device according to claim 1, characterized in that: The first positioning member includes a ferrule and a first counter screw, The ferrule is fixed on the support plate, the axis of the ferrule extends along the direction of the straight edge, and the first abutting screw passes through the side wall of the ferrule and presses against the side of the wire to be tested that passes through the ferrule.
3. The wire hardness test device according to claim 1, characterized in that: The second positioning member includes a sleeve cap, a second counter screw and a tensioning member. The cap is sleeved on the end of the wire to be tested, the second counter screw passes through the cap and presses the side of the wire to be tested inside the cap, and the tensioning member is connected to the cap and straightens the wire to be tested along the extension direction of the straight edge.
4. The wire hardness test device according to claim 3, characterized in that: The tensioning member comprises a spring and a screw rod, wherein the screw rod is fixed to two ends of the straight edge, one end of the spring is fixed to the screw rod, and the other end of the spring is detachably connected to the sleeve cap.
5. The wire hardness test device according to claim 4, characterized in that: A plurality of screw holes are respectively arranged at both ends of the straight edge, and the plurality of screw holes are distributed in a straight line along the extending direction of the straight edge, and the screw rods can be detachably installed in the screw holes.
6. The wire hardness and softness testing device according to claim 4, characterized in that: The sleeve cap is provided with a draw hook, and the spring or the weight is hooked on the draw hook.
7. The wire hardness test device according to claim 1, characterized in that: The measuring range of the arc measuring side is divided into a first measuring range and a second measuring range, the first measuring range and the second measuring range are symmetrically arranged on both sides of the symmetry axis of the semicircular protractor, each measuring range is 0 to 90° and gradually increases from the end of the arc measuring side to the symmetry axis.
8. The wire hardness and softness testing device according to claim 1, characterized in that: The support plate is arranged on a base, the base is arranged as a flat plate, and a height adjustment screw is arranged on the flat plate.
9. The wire hardness and softness testing device according to claim 1, characterized in that: The testing components are respectively disposed on the front and back sides of the supporting plate.
10. A method for testing the hardness of a wire, characterized in that: Using the wire hardness test device according to any one of claims 1 to 9 comprises the following steps: Fixing the middle of the wire to be tested on the first positioning member, and fixing both ends of the wire to be tested on the second positioning members respectively, so that the wire to be tested extends along the straight edge; The wire hardness and softness testing device with the wire to be tested fixed thereon is placed under extreme conditions for testing. After the test, the two ends of the wire to be tested are released from the second positioning piece, so that the wire to be tested is positioned on the first positioning piece, and the weights are hung on the two ends of the wire to be tested. The drooping angle of the wire is read on the semicircular protractor. The larger the reading, the better the softness of the wire.