Drawing test tool

Abstract

The utility model provides a drawing test tool, which belongs to the technical field of energy storage battery manufacturing and testing equipment.The drawing test tool comprises a test bench, a clamping assembly, a gantry support, a first locking assembly, a drawing test assembly and a second locking assembly, the clamping assembly is arranged on the test bench, the gantry support is arranged on the gantry support, and the second locking assembly is arranged on the gantry support. The object to be tested only needs to be clamped and positioned on the test rack through the clamping assembly, the gantry support is slidably arranged on the test rack in the first direction, and the drawing test assembly is slidably arranged on the gantry support in the second direction, so that the drawing test assembly can perform two-dimensional movement on the plane parallel to the test plane of the object to be tested; therefore, the drawing test assemblies can be moved to different test positions on the same surface of the to-be-tested object respectively without moving and adjusting the position of the to-be-tested object on the test bench or reloading the to-be-tested object, and the tensile mechanical properties of the to-be-tested object at different test positions can be tested quickly, accurately and efficiently.

Description

Technical Field

[0001] This utility model belongs to the technical field of energy storage battery manufacturing and testing equipment, and in particular, relates to a pull-out test fixture. Background Technology

[0002] Flow batteries, as a novel battery technology, have garnered widespread attention due to their advantages such as high efficiency, safety, reliability, long cycle life, and flexible structural design. Currently, most flow batteries employ a multi-layered single-cell structure, which primarily includes positive electrode material, negative electrode material, bipolar plates, a separator, positive current collectors, and negative current collectors, involving various sheet-like carbon materials such as bipolar plates and graphite felt. During the assembly of a flow reference battery, the non-metallic current collectors and the sheet-like carbon materials generally need to be pre-connected. To test the tensile mechanical properties, such as the strength of the pre-fabricated connection between the current collectors and the sheet-like carbon materials, pull-out tests are often required. However, existing pull-out tests cannot flexibly adjust the position of the pull-out test components. When there are multiple test positions for the test object or when the test position needs to be adjusted due to changes in the test object's model, each pull-out test at a test position requires reloading the test object and aligning it with the test position. This makes it impossible to quickly, accurately, and efficiently complete the testing of the tensile mechanical properties, such as the connection strength, at different test positions of the test object. Utility Model Content

[0003] Based on the aforementioned problems in the prior art, the purpose of this utility model embodiment is to provide a pull-out testing fixture to solve the problem that in the prior art, when there are multiple test positions on the test object or the test position is adjusted due to changes in the model of the test object, it is impossible to quickly, accurately, and efficiently complete the tensile mechanical property test of different test positions on the same surface of the test object.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a pull-out testing fixture, comprising:

[0005] Test bench;

[0006] A clamping assembly is disposed on the test bench, and the clamping assembly is capable of clamping and positioning the object to be tested on the test bench;

[0007] A gantry support is slidably mounted on the test bench along a first direction, which is parallel to the test plane of the object to be tested.

[0008] The first locking component locks the gantry bracket onto the test bench;

[0009] A pull-out testing assembly is slidably mounted on the gantry bracket along a second direction parallel to the test plane of the object under test; and

[0010] a second locking assembly for locking the pull test assembly on the gantry support.

[0011] Further, the pull test assembly comprises a first sliding member slidably arranged on the gantry support along a second direction, a pulling mechanism arranged on the first sliding member, and a metering and connecting assembly connecting the pulling mechanism with the object to be tested.

[0012] Further, the metering and connecting assembly comprises a pulling cable buckle connected to a corresponding test position on the object to be tested, a hook connected to the pulling cable buckle, a tension meter connected to the pulling mechanism, and a pull rod or a pull rope connecting the hook and the tension meter.

[0013] Further, the pulling mechanism comprises a screw slide module arranged on the first sliding member, a screw rotatably arranged on the screw slide module, a sliding seat slidably arranged on the screw slide module, a nut screwed on the screw, and a driving member driving the screw to rotate, the driving member being connected to the screw, the sliding seat being connected to the nut, and the metering and connecting assembly being connected to the sliding seat.

[0014] Further, the clamping assembly comprises a plurality of quick clamps, the plurality of quick clamps being distributed along a circumference of the object to be tested.

[0015] Further, the quick clamp comprises a clamping seat connected to the test rack, a clamping arm rotatably arranged on the clamping seat, a pressing member connected to the clamping arm, at least one pressing head arranged on the pressing member, and a backing plate for the pressing head to press against, the backing plate being arranged at a position on the object to be tested corresponding to the pressing head.

[0016] Further, the pull test tool further comprises a second sliding member slidably arranged on the test rack along a first direction, the gantry support being slidably mounted on the test rack through the second sliding member.

[0017] Further, the test rack is further provided with a first sliding groove nut extending along the first direction, the second sliding member is provided with a first locking hole, the first locking assembly comprises a first bolt and a first handle connected to the first bolt, the first bolt is screwed with the first sliding groove nut after passing through the first locking hole, so as to lock the second sliding member on the test rack.

[0018] Further, the pull test tool further comprises a plurality of limiting members arranged on the test rack, the plurality of limiting members being distributed along a circumference of the object to be tested, so that an area enclosed by the plurality of limiting members forms a preset clamping position for positioning the object to be tested.

[0019] Further, the limiting piece comprises a threaded shaft head and a milled flat part connected with the threaded shaft head, and the test bench is provided with a second sliding groove nut in threaded fastening connection with the threaded shaft head.

[0020] Compared with the prior art, the one or more technical solutions in the embodiment of the utility model have at least one of the following beneficial effects:

[0021] The drawing test tool in the embodiment of the utility model, through setting the gantry support on the test bench along the first direction slidingly, and setting the drawing test assembly on the gantry support along the second direction slidingly, when there are multiple test positions or the test position changes in the same to-be-tested object, the to-be-tested object can be clamped and positioned on the test bench by the clamping assembly, since the first direction and the second direction are both parallel to the test plane on the to-be-tested object, only the position of the gantry support needs to be adjusted along the first direction on the test bench, and the drawing test assembly is adjusted along the second direction on the gantry support, so that the drawing test assembly can move in two dimensions on the plane parallel to the surface of the to-be-tested object where the test position exists, the drawing test assembly can be moved to different test positions of the to-be-tested object respectively for connecting strength and other tensile mechanical property tests, and the position of the to-be-tested object on the test bench or the to-be-tested object needs not to be moved and adjusted or reloaded, so that the tensile mechanical property test of different test positions on the same surface of the to-be-tested object can be quickly, accurately and efficiently completed. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0023] Figure 1 The drawing test tool provided in the embodiment of the utility model is shown in the three-dimensional structure schematic diagram;

[0024] Figure 2 Another three-dimensional structure schematic diagram of the drawing test tool provided in the embodiment of the utility model is shown in the three-dimensional structure schematic diagram;

[0025] Figure 3 The three-dimensional structure schematic diagram of the drawing test assembly provided in the embodiment of the utility model is shown in the three-dimensional structure schematic diagram;

[0026] Figure 4 The exploded view of the drawing test assembly provided in the embodiment of the utility model is shown in the exploded view;

[0027] Figure 5 The assembly drawing of the test bench and the limiting piece provided in the embodiment of the utility model is shown in the assembly drawing;

[0028] Figure 6 An assembly drawing of the measured object and the limiting piece provided by the embodiment of the utility model;

[0029] Figure 7 An assembly drawing of the measured object and the clamping assembly provided by the embodiment of the utility model;

[0030] Figure 8 A three-dimensional structure schematic diagram of the quick clamp provided by the embodiment of the utility model;

[0031] Figure 9 A three-dimensional structure schematic diagram of the quick clamp provided by another embodiment of the utility model.

[0032] In the drawings, various reference signs are:

[0033] 1-test bench; 11-first sliding groove nut; 12-second sliding groove nut;

[0034] 2-quick clamp; 21-clamping seat; 22-clamping arm; 23-pressing piece; 24-pressing head; 25-pad plate; 251-avoidance boss; 252-avoidance groove;

[0035] 3-gantry support; 31-third sliding groove nut;

[0036] 4-first locking assembly; 41-first bolt; 42-first handle;

[0037] 5-pull-out test assembly; 51-first sliding piece; 52-pull-out mechanism; 521-screw rod sliding seat module; 522-screw rod; 523-sliding seat; 524-nut; 525-driving piece; 53-measuring and connecting assembly; 531-pull-out wire clamping buckle; 532-hook; 533-dynamometer; 534-pull rope; 54-adapting plate; 55-mounting plate;

[0038] 6-second locking assembly; 61-second bolt; 62-second handle;

[0039] 7-limiting piece; 71-threaded shaft head; 72-milled flat part;

[0040] 8-second sliding piece; 9-measured object. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0042] It should be noted that when an element is referred to as being "connected to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited. In the description of the utility model, it should be noted that, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] Throughout the specification, reference to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Therefore, the appearance of the phrases "in one embodiment", "in some embodiments", or "in some embodiments" in various places throughout the specification are not all referring to the same embodiment. In addition, in one or more embodiments, specific features, structures, or characteristics can be combined in any suitable manner.

[0044] Please refer to Figures 1 to 9 , now the drawing test tool provided by the embodiment of the utility model will be described. Please further refer to Figure 1 、 Figure 2 and Figure 7The utility model discloses a drawing test tool, which comprises a test bench 1, a clamping assembly, a gantry support 3, a first locking assembly 4, a drawing test assembly 5 and a second locking assembly 6. The clamping assembly is arranged on the test bench 1 and is used to clamp and position an object 9 to be tested on the test bench 1, thereby preventing the object 9 to be tested from being displaced during the drawing test. The gantry support 3 is slidably arranged on the test bench 1 along a first direction, which is parallel to the test plane of the object 9 to be tested. The first locking assembly 4 is arranged on the test bench 1 and can be used to lock the gantry support 3 on the test bench 1. The drawing test assembly 5 is used to perform a drawing test on the object 9 to be tested clamped and positioned on the test bench 1. The drawing test assembly 5 is slidably arranged on the gantry support 3 along a second direction, which is parallel to the test plane of the object 9 to be tested and is not parallel to the first direction. Preferably, the second direction is perpendicular to the first direction. It should be noted that the drawing test assembly 5 performs a drawing test on the object 9 to be tested along a third direction, which is perpendicular to the test plane of the object 9 to be tested. When the first direction is the X-axis direction, the second direction is the Y-axis direction and the third direction is the Z-axis direction. The second locking assembly 6 is arranged on the gantry support 3 and can be used to lock the drawing test assembly 5 on the gantry support 3. During the drawing test, the object 9 to be tested is first placed on the test bench 1, then the position of the gantry support 3 is adjusted along the first direction on the test bench 1, the position of the drawing test assembly 5 is adjusted along the second direction on the gantry support 3, the drawing force applied by the drawing test assembly 5 is ensured to be perpendicular to the surface of the object 9 to be tested, the gantry support 3 is locked on the test bench 1 by the first locking assembly 4, the drawing test assembly 5 is locked on the gantry support 3 by the second locking assembly 6, and then the drawing test assembly 5 is used to perform a tensile mechanical property test, such as a connection strength test, on the object 9 to be tested. When there are multiple test positions for the same object 9 to be tested or the test position needs to be adjusted due to a change in the model of the object 9 to be tested, the position of the gantry support 3 only needs to be adjusted along the first direction on the test bench 1, and the position of the drawing test assembly 5 needs to be adjusted along the second direction on the gantry support 3. Then, the drawing test assembly 5 can be moved to different test positions of the object 9 to be tested to perform a tensile mechanical property test, such as a connection strength test, without the need to move and adjust the position of the object 9 to be tested on the test bench 1 or to reload the object 9 to be tested. Thus, the tensile mechanical property test, such as the connection strength test, can be quickly, accurately and efficiently performed on different test positions of the object 9 to be tested.

[0045] Compared with the prior art, the drawing test tool provided in the embodiment of the utility model, through setting the portal frame support 3 on the test bench 1 along the first direction and setting the drawing test assembly 5 on the portal frame support 3 along the second direction, when there are multiple test positions of the same to-be-tested object 9 or the test position is adjusted due to the model change of the to-be-tested object 9, the to-be-tested object 9 can be clamped and positioned on the test bench 1 through the clamping assembly, because the first direction and the second direction are parallel to the test plane of the to-be-tested object 9, only the position of the portal frame support 3 needs to be adjusted along the first direction on the test bench 1, and the drawing test assembly 5 needs to be adjusted along the second direction on the portal frame support 3, so that the drawing test assembly 5 can move in two dimensions on the plane parallel to the surface of the test position of the to-be-tested object 9, the drawing test assembly 5 can be moved to each different test position on the same surface of the to-be-tested object 9 for connecting strength and other tensile mechanical property tests, and the position of the to-be-tested object 9 on the test bench 1 does not need to be adjusted or the to-be-tested object 9 does not need to be reloaded, so that the tensile mechanical property test of different test positions on the same surface of the to-be-tested object 9 can be quickly, accurately and efficiently completed.

[0046] Please refer to Figure 2 、 Figure 3 and Figure 4 In some embodiments, the drawing test assembly 5 includes a first sliding part 51 capable of being slidably arranged on the portal frame support 3 along the second direction, a drawing mechanism 52 arranged on the first sliding part 51, and a metering and connecting assembly 53 connecting the drawing mechanism 52 and the to-be-tested object 9. In this embodiment, the first sliding part 51 is slidably arranged on the portal frame support 3, and the drawing mechanism 52 is installed on the first sliding part 51, so that the stability and reliability of the drawing mechanism 52 sliding along the second direction can be improved. In addition, after the drawing test assembly 5 is adjusted in place, the first sliding part 51 is first locked on the portal frame support 3 through the second locking assembly 6, and then the drawing mechanism 52 is connected with the to-be-tested object 9 through the metering and connecting assembly 53, so that the metering and connecting assembly 53 driven by the drawing mechanism 52 can perform tensile mechanical property drawing test on the to-be-tested object 9 clamped and positioned on the test bench 1. It should be noted that the first sliding part 51 can be a sliding support or a sliding support, and the portal frame support 3 can be provided with a sliding groove or a sliding rail, and the sliding support or the sliding support is provided with a sliding block matched with the sliding groove or the sliding rail, so that the first sliding part 51 can be stably slidably arranged on the portal frame support 3.

[0047] Please refer to Figure 2 、 Figure 3 and Figure 4In some embodiments, the metering and connecting assembly 53 comprises a pull strap buckle 531 connected to the corresponding test position of the object 9 to be tested, a hook 532 connected to the pull strap buckle 531, a tension meter 533 connected to the pulling mechanism 52, and a pull rod or pull rope 534 connecting the hook 532 and the tension meter 533. In this embodiment, only the pull strap buckle 531 needs to be pre-connected to the corresponding test position of the object 9 to be tested. By hooking the pull strap buckle 531 with the hook 532, since the hook 532 is connected to the tension meter 533 through the pull rod or pull rope 534, only the tension meter 533 needs to be driven by the pulling mechanism 52 to perform the tensile mechanical property pull test on the object 9 to be tested clamped and positioned on the test rack 1. It should be noted that when the hook 532 is connected to the tension meter 533 through the pull rope 534, the center point of the pull strap buckle 531 can be aligned by hanging a lead weight on the pull rope 534, and the pull test assembly 5 can be quickly moved to each different test position on the same side of the object 9 to be tested to test the connection strength and other tensile mechanical properties of each different test position of the object 9 to be tested. The object 9 to be tested can be a pre-connected (welded, bonded, or sealed) bipolar plate and current collecting frame. In this case, the test quantity is the bonding strength of the bipolar plate and the current collecting frame, and the pull strap buckle 531 is bonded to the bipolar plate before testing.

[0048] Please refer to Figure 3 and Figure 4 In some embodiments, the pulling mechanism 52 comprises a lead screw slide module 521 provided on the first sliding member 51, a lead screw 522 rotatably provided on the lead screw slide module 521, a sliding seat 523 slidingly provided on the lead screw slide module 521, a nut 524 screwed on the lead screw 522, and a driving member 525 driving the rotation of the lead screw 522. The driving member 525 is connected to the lead screw 522, the sliding seat 523 is connected to the nut 524, and the tension meter 533 of the metering and connecting assembly 53 is connected to the sliding seat 523 through the mounting plate 55 and the adapter plate 54. In this embodiment, by driving the rotation of the lead screw 522 with the driving member 525, the sliding seat 523 is moved away from the object 9 to be tested under the action of the lead screw 522, and the tension meter 533 of the metering and connecting assembly 53 is driven by the sliding seat 523, so that the tensile mechanical property pull test can be performed on the object 9 to be tested clamped and positioned on the test rack 1. It should be noted that the driving member 525 can be a hand wheel connected to the lead screw 522, or an electric motor connected to the lead screw 522. In addition, in order to achieve high-precision pull testing of the object 9 to be tested, the pulling mechanism 52 further comprises a displacement sensor for measuring the movement distance of the sliding seat 523.

[0049] Please refer to Figure 1 , Figure 2 and Figure 7In some embodiments, the clamping assembly comprises a plurality of quick clamps 2, which are spaced along the circumference of the test object 9 so that the test object 9 clamped on the test bench 1 is more evenly stressed, and the large-area test object 9 remains flat and undeformed during the tensile test, which is conducive to improving the accuracy of the tensile test.

[0050] Please refer to Figure 7 , Figure 8 and Figure 9 In some embodiments, each quick clamp 2 comprises a clamping seat 21 connected to the test bench 1, a clamping arm 22 rotatably arranged on the clamping seat 21, a pressing member 23 connected to the clamping arm 22, at least one pressing head 24 arranged on the pressing member 23, and a backing plate 25 for the pressing head 24 to press against, which is arranged on the test object 9 at a position corresponding to the pressing head 24. In this embodiment, the backing plate 25 is pressed against the four peripheral edges of the test object 9, the clamping arm 22 is rotated so that the at least one pressing head 24 on the pressing member 23 presses and tightens the backing plate 25, thereby clamping and positioning the test object 9 on the test bench 1 through the backing plate 25. Since the backing plate 25 can increase the contact area between the quick clamp 2 and the test object 9, on the one hand, it can make the part of the test object 9 clamped around more evenly stressed, avoiding local deformation of the test object 9 due to excessive local stress, and on the other hand, it can make the test object 9 more evenly stressed, so that the test object 9 remains flat and undeformed during the tensile test, which is conducive to improving the accuracy of the tensile test. It should be noted that the number of pressing heads 24 arranged on the pressing member 23 of each quick clamp 2 can be one, two or more than three. The height of the clamping arm 22 and the pressing head 24 can be adjusted by adjusting the height of the clamping seat 21. The position of each quick clamp 2 can be adjusted by changing the connection position of the clamping seat 21 and the test bench 1 to adapt to different models of test objects 9. In addition, please refer to Figure 8 and Figure 9 When the test object 9 is a prefabricated sheet-shaped carbon material and a current collecting frame, the side of the backing plate 25 facing the current collecting frame is respectively provided with a relief boss 251 avoiding the groove structure on the current collecting frame and a relief groove 252 avoiding the protruding structure on the current collecting frame, to prevent the current collecting frame from being deformed when the backing plate 25 presses against it, thereby affecting the accuracy of the tensile test.

[0051] Please refer to Figure 1 , Figure 5 and Figure 6In some embodiments, the tensile testing device further comprises a plurality of position limiting members 7 arranged on the testing bench 1, and the plurality of position limiting members 7 are arranged at intervals along the circumference of the object 9 to be tested, so that the area enclosed by the plurality of position limiting members 7 forms a preset clamping position for positioning the object 9 to be tested. In this embodiment, the object 9 to be tested only needs to be placed in the preset clamping position enclosed by the plurality of position limiting members 7, and the plurality of position limiting members 7 position the object 9 to be tested on the testing bench 1 in the horizontal direction, and the plurality of quick clamps 2 position the object 9 to be tested on the testing bench 1 in the vertical direction, which effectively prevents the object 9 to be tested from shifting during the tensile test. In addition, the object 9 to be tested only needs to be placed in the preset clamping position enclosed by the plurality of position limiting members 7, and the object 9 to be tested can be quickly loaded on the testing bench 1.

[0052] Please refer to Figure 5 and Figure 6 In some embodiments, the position limiting member 7 comprises a threaded shaft head 71 and a milled flat portion 72 connected to the threaded shaft head 71, and the testing bench 1 is provided with a second sliding groove nut 12 threadedly fastened to the threaded shaft head 71. In this embodiment, the position of each position limiting member 7 can be adjusted according to the size of the object 9 to be tested, and after the position limiting member 7 is adjusted to the appropriate position, the threaded shaft head 71 can be threadedly fastened to the corresponding second sliding groove nut 12 to lock and position the position limiting member 7 on the testing bench 1, so that the area enclosed by the plurality of position limiting members 7 forms a preset clamping position that can be adapted to objects 9 to be tested of different sizes, thereby allowing the plurality of position limiting members 7 to limit the object 9 to be tested in the horizontal direction, and allowing the object 9 to be tested of different sizes to be quickly loaded on the testing bench 1. It should be noted that the milled flat portion 72 of each position limiting member 7 is designed as a milled flat mouth, which is mainly to facilitate the tool to access and rotate to fasten the position limiting member 7.

[0053] Please refer to Figure 1 , Figure 2 In some embodiments, the tensile testing device further comprises a second sliding member 8 arranged on the testing bench 1 and capable of sliding in the first direction, and the gantry support 3 is slidingly mounted on the testing bench 1 through the second sliding member 8. In this embodiment, the second sliding member 8 is arranged on the testing bench 1, and the gantry support 3 is mounted on the second sliding member 8, which can improve the stability and reliability of the gantry support 3 sliding in the first direction. It should be noted that the second sliding member 8 can be a sliding support or a sliding support, and the testing bench 1 can be provided with a sliding groove or a sliding rail, and the sliding support or the sliding support is provided with a sliding block matched with the sliding groove or the sliding rail, so that the second sliding member 8 can be stably slidingly mounted on the testing bench 1.

[0054] Please refer to Figure 1 , Figure 2 and Figure 5In some embodiments, the test bench 1 is further provided with a first sliding slot nut 11 extending along the first direction, the second sliding member 8 is provided with a first locking hole, and the first locking assembly 4 comprises a first bolt 41 and a first handle 42 connected with the first bolt 41. In this embodiment, when the position of the portal frame 3 is adjusted by sliding along the first direction on the test bench 1, the first bolt 41 is only needed to pass through the first locking hole of the second sliding member 8, and the first bolt 41 is rotated by the first handle 42 to be threadedly connected with the first sliding slot nut 11, so that the second sliding member 8 is locked on the test bench 1, and thus the portal frame 3 is locked on the test bench 1 by the first locking assembly 4.

[0055] Please refer to Figure 1 、 Figure 2 and Figure 4 In some embodiments, the portal frame 3 is further provided with a third sliding slot nut 31 extending along the second direction, the first sliding member 51 is provided with a second locking hole, and the second locking assembly 6 comprises a second bolt 61 and a second handle 62 connected with the second bolt 61. In this embodiment, when the position of the pull test assembly 5 is adjusted by sliding along the second direction on the portal frame 3, the second bolt 61 is only needed to pass through the second locking hole of the first sliding member 51, and the second bolt 61 is rotated by the second handle 62 to be threadedly connected with the third sliding slot nut 31, so that the first sliding member 51 is locked on the portal frame 3, and thus the pull test assembly 5 is locked on the portal frame 3 by the second locking assembly 6.

[0056] Similarly, the test bench 1 can be provided with a fourth sliding slot nut for fixing each quick clamp, and the clamp seat 21 is connected with the fourth sliding slot nut by a fourth bolt, so as to adjust the position of each quick clamp.

[0057] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tensile testing fixture characterized by, The application relates to a tensile testing device, which comprises: a test bench; a clamping assembly arranged on the test bench and capable of clamping an object to be tested on the test bench; a gantry capable of sliding along a first direction on the test bench, the first direction being parallel to a test plane of the object to be tested; a first locking assembly for locking the gantry on the test bench; a tensile testing assembly capable of sliding along a second direction on the gantry, the second direction being parallel to the test plane of the object to be tested; and a second locking assembly for locking the tensile testing assembly on the gantry. The tensile testing assembly comprises a first sliding member capable of sliding along the second direction on the gantry, a tensile mechanism arranged on the first sliding member, and a metering and connecting assembly connecting the tensile mechanism with the object to be tested.

2. The pull testing fixture of claim 1, wherein, The metering and connecting assembly comprises a tensile wire buckle connected to a corresponding test position on the object to be tested, a hook connected to the tensile wire buckle, a tensile force meter connected to the tensile mechanism, and a pull rod or pull rope connecting the hook and the tensile force meter.

3. The tensile test fixture of claim 2, wherein, The tensile mechanism comprises a screw sliding seat module arranged on the first sliding member, a screw rod rotatably arranged on the screw sliding seat module, a sliding seat slidingly arranged on the screw sliding seat module, a nut screwed on the screw rod, and a driving member driving the screw rod to rotate, the driving member being connected to the screw rod, the sliding seat being connected to the nut, and the metering and connecting assembly being connected to the sliding seat.

4. The pull testing fixture of claim 2, wherein, The clamping assembly comprises a plurality of quick clamps, and the plurality of quick clamps are distributed along the circumference of the object to be tested.

5. The pull testing fixture of claim 1, wherein, The quick clamp comprises a clamping seat connected to the test bench, a clamping arm rotatably arranged on the clamping seat, a pressing member connected to the clamping arm, at least one pressing head arranged on the pressing member, and a backing plate for the pressing head, the backing plate being arranged on the object to be tested at a position corresponding to the pressing head.

6. The pull testing fixture of claim 5, wherein, The tensile testing device further comprises a second sliding member capable of sliding along the first direction on the test bench, and the gantry is slidingly arranged on the test bench through the second sliding member.

7. The pull testing fixture of claim 1, wherein, The test bench is further provided with a first sliding groove nut extending along the first direction, the second sliding member is provided with a first locking hole, the first locking assembly comprises a first bolt and a first handle connected to the first bolt, the first bolt is screwed with the first sliding groove nut after penetrating through the first locking hole, so as to lock the second sliding member on the test bench.

8. The pull testing fixture of claim 7, wherein, The tensile testing device further comprises a plurality of limiting members arranged on the test bench, the plurality of limiting members are distributed along the circumference of the object to be tested, so that a region surrounded by the plurality of limiting members forms a preset clamping position for positioning the object to be tested.

9. The tensile test fixture of any one of claims 1 to 8, wherein, The limiting member comprises a threaded shaft head and a milled flat portion connected to the threaded shaft head, and the test bench is provided with a second sliding groove nut screwedly and tightly connected with the threaded shaft head.

10. The pull testing fixture of claim 9, wherein, ​

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