High-temperature uniaxial tensile test spline clamp

Abstract

The utility model discloses a high-temperature one-way tensile test spline clamp which comprises a base and a clamping device, the two clamping devices are symmetrically arranged in the left-right direction, the two clamping devices can press the left end and the right end of the sample strip respectively, each clamping device comprises a sliding base, a pressing base and a pressing plate, the sliding bases are slidably connected to the base in the left-right direction, the pressing bases are detachably connected to the sliding bases, each pressing base is provided with an inner cavity, and an opening of each pressing base faces the pressing base of the other clamping device; the pressing plate is located in the pressing base and slidably connected to the pressing base in the vertical direction, a reset spring is arranged in the pressing base and continuously exerts downward force on the pressing plate, and the lower end face of the pressing plate and the bottom of the pressing base can be matched to clamp the sample strip. The two clamping devices can slide in the left-right direction so as to be close to or far away from each other, so that the distance between the two clamping devices is changed, and the two clamping devices adapt to splines with different lengths. The high-temperature uniaxial tensile test spline clamp is simple to operate and convenient to assemble, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially to a high temperature unidirectional tensile test sample fixture. BACKGROUND

[0002] Tensile property test is an important mechanical property test of film material, and the two ends of the sample need to be clamped by a fixture before the sample is stretched. At present, the structure of the fixture for clamping the sample is complex, and it is inconvenient to install, which affects the work efficiency. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the related art is solved to some extent. To this end, the utility model provides a high temperature unidirectional tensile test sample fixture.

[0004] The utility model discloses an high temperature unidirectional tensile test sample fixture, the high temperature unidirectional tensile test sample fixture includes:

[0005] Base;

[0006] Clamping device, two clamping devices are symmetrically arranged along the left and right directions, and the two clamping devices can press the left and right ends of the sample respectively, the clamping device includes slide base, pressing seat and pressing plate, the slide base is slidably connected to the base along the left and right directions, the pressing seat is detachably connected to the slide base, the pressing seat has a cavity and the opening faces the pressing seat of the other clamping device, the pressing plate is located in the pressing seat and is slidably connected to the pressing seat along the up and down directions, a return spring is arranged in the pressing seat, the return spring continuously exerts downward force on the pressing plate, and the lower end surface of the pressing plate and the bottom of the pressing seat can clamp the sample.

[0007] The high temperature unidirectional tensile test sample fixture has at least the following technical effects: when the sample needs to be clamped, the pressing seat is installed on the slide base, the pressing plate is pulled up, the two ends of the sample are placed between the lower end surface of the pressing plate and the bottom of the pressing seat of the two clamping devices, and the pressing plate and the pressing seat clamp the sample under the action of gravity and the return spring. The two clamping devices can slide along the left and right directions to approach or move away from each other to change the distance between the two clamping devices, so as to adapt to samples of different lengths. The high temperature unidirectional tensile test sample fixture is simple to operate, easy to assemble and improves work efficiency.

[0008] According to some embodiments of the utility model, the side wall of base is equipped with long strip through -hole, long strip through -hole extends along left and right direction, high temperature unidirectional tensile test sample piece clamp still includes two locking bolts, two locking bolts with two clamping devices one -to -one correspondence, locking bolt passes through long strip through -hole and with clamping device's sliding block screw joint, locking bolt can be compacted in the side wall of base makes base and sliding block relative fixed.

[0009] According to some embodiments of the utility model, the base is provided with a scale, and the scale is used for measuring the distance between the two clamping devices.

[0010] According to some embodiments of the utility model, the sliding base is provided with a positioning groove, and the pressing base is provided with a positioning block, the positioning block can be inserted into the positioning groove, so that the pressing base can move along the left and right directions with the sliding base.

[0011] According to some embodiments of the utility model, one side of the sliding base facing the other sliding base is provided with the positioning groove, and the positioning groove extends forward through the front side of the sliding base, and the other side of the pressing base away from the other pressing base is provided with the positioning block, and the pressing base can move backward so that the positioning block is inserted into the positioning groove.

[0012] According to some embodiments of the utility model, a slide rod is arranged in the pressing base, the slide rod is slidably connected to the pressing base in the up-down direction, and the lower end of the slide rod is fixedly connected to the pressing plate.

[0013] According to some embodiments of the utility model, the reset spring is sleeved on the slide rod, the upper end of the reset spring is connected to the top wall of the pressing base, the lower end of the reset spring is connected to the upper end surface of the pressing plate, and the reset spring is always in a compressed state.

[0014] According to some embodiments of the utility model, a pull rod is arranged in the pressing base, the pull rod is slidably connected to the pressing base in the up-down direction, the lower end of the pull rod is fixedly connected to the pressing plate, and the upper end of the pull rod is arranged in the top wall of the pressing base.

[0015] According to some embodiments of the utility model, the upper end of the pull rod is provided with a handle.

[0016] According to some embodiments of the utility model, the lower end surface of the pressing plate and the bottom of the pressing base are both provided with sawtooth patterns.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:

[0019] Figure 1 is a structural schematic diagram of the high-temperature unidirectional tensile test sample strip clamp of some embodiments of the present application;

[0020] Figure 2 is an exploded view of the high-temperature unidirectional tensile test sample strip clamp of some embodiments of the present application;

[0021] Figure 3 is a partial structural schematic diagram of the high-temperature unidirectional tensile test sample strip clamp of some embodiments of the present application.

[0022] Reference signs:

[0023] Base 100, long hole 110, locking bolt 120, scale 130;

[0024] Clamping device 200, slide 210, positioning groove 211, pressure seat 220, positioning block 221, pressing plate 230;

[0025] Reset spring 300, slide rod 310, pull rod 320, handle 321. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that, if there is a description of the orientation, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0028] In the description of the present application, if there is a description of first, second, etc. for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or the sequence of the indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0030] The utility model embodiment is further described below with reference to the drawings.

[0031] According to some embodiments of the utility model, refer to Figures 1 to 3 The high-temperature unidirectional tensile test sample clamp comprises a base 100 and a clamping device 200. Two clamping devices 200 are symmetrically arranged along the left-right direction, and the two clamping devices 200 can press the left and right ends of the sample respectively. The clamping device 200 comprises a sliding seat 210, a pressing seat 220 and a pressing plate 230. The sliding seat 210 is slidably connected to the base 100 along the left-right direction. The pressing seat 220 is detachably connected to the sliding seat 210. The pressing seat 220 has an inner cavity and an opening facing the pressing seat 220 of the other clamping device 200; that is, in the two clamping devices 200, the opening of the pressing seat 220 on the left side faces the right side, and the opening of the pressing seat 220 on the right side faces the left side. The pressing plate 230 is located in the pressing seat 220 and is slidably connected to the pressing seat 220 along the up-down direction. The pressing seat 220 is provided with a return spring 300, which continuously applies a downward force to the pressing plate 230. In the initial state, the lower end surface of the pressing plate 230 is tightly attached to the bottom of the pressing seat 220. The lower end surface of the pressing plate 230 and the bottom of the pressing seat 220 can cooperate to clamp the sample.

[0032] When the sample needs to be clamped, the pressing seat 220 is installed on the sliding seat 210, and then the pressing plate 230 is pulled up, and the left and right ends of the sample are placed between the lower end surface of the pressing plate 230 and the bottom of the pressing seat 220 of the two clamping devices 200. Under the action of gravity and the return spring 300, the pressing plate 230 and the pressing seat 220 cooperate to clamp the left and right ends of the sample. The two clamping devices 200 can slide along the left-right direction to approach or move away from each other to change the distance between the two clamping devices 200, so as to adapt to samples of different lengths.

[0033] The high-temperature unidirectional tensile test sample clamp is simple to operate, easy to assemble, and improves work efficiency.

[0034] According to some embodiments of the utility model, refer to Figure 1 and Figure 2The side wall of the base 100 is provided with a long hole 110 extending along the left-right direction, the high-temperature uniaxial tensile test sample clamp further comprises two locking bolts 120 corresponding to the two clamping devices 200, the locking bolts 120 pass through the long hole 110 and are threadedly connected with the sliding seat 210 of the clamping device 200, and the shank head of the locking bolt 120 is pressed against the side wall of the base 100 by tightening the locking bolt 120, so that the base 100 and the sliding seat 210 are relatively fixed.

[0035] Preferably, the base 100 is provided with a scale 130 for measuring the distance between the two clamping devices 200, so as to measure the length of the sample.

[0036] According to some embodiments of the present application, referring to Figure 1 and Figure 2 The sliding seat 210 is provided with a positioning groove 211, and the pressing seat 220 is provided with a positioning block 221. When the positioning block 221 is inserted into the positioning groove 211, the pressing seat 220 is mounted on the sliding seat 210. The pressing seat 220 can move along the left-right direction with the sliding seat 210.

[0037] Preferably, referring to Figure 2 The side of the sliding seat 210 facing the other sliding seat 210 is provided with a positioning groove 211, that is, in the two clamping devices 200, the right side of the sliding seat 210 on the left side is provided with a positioning groove 211, and the left side of the sliding seat 210 on the right side is provided with a positioning groove 211. The positioning groove 211 extends forwardly through the front side wall of the sliding seat 210. The side of the pressing seat 220 away from the other pressing seat 220 is provided with a positioning block 221, that is, in the two clamping devices 200, the left side of the pressing seat 220 on the left side is provided with a positioning block 221, and the right side of the pressing seat 220 on the right side is provided with a positioning block 221. The pressing seat 220 can move from front to back so that the positioning block 221 is inserted into the positioning groove 211, thereby completing the assembly of the pressing seat 220 and the sliding seat 210. From front to back, the positioning groove 211 and the positioning block 221 are both L-shaped, and when the positioning block 221 is inserted into the positioning groove 211 from front to back, the positioning groove 211 can limit the movement of the positioning block 221 along the left-right direction, so that the sliding seat 210 can drive the pressing seat 220 to move along the left-right direction.

[0038] According to some embodiments of the present application, referring to Figure 3 The pressing seat 220 is provided with a sliding rod 310 slidingly connected to the pressing seat 220 along the up-down direction, and the lower end of the sliding rod 310 is fixedly connected to the pressing plate 230. The sliding rod 310 can slide relative to the pressing seat 220 along the up-down direction to drive the pressing plate 230 to move along the up-down direction.

[0039] According to some embodiments of the present application, referring to Figure 3The reset spring 300 is sleeved on the slide rod 310, the upper end of the reset spring 300 is connected with the top wall of the pressing base 220, the lower end of the reset spring 300 is connected with the upper end surface of the pressing plate 230, the reset spring 300 is always in a compressed state, and the reset spring 300 applies a downward force to the pressing plate 230.

[0040] According to some embodiments of the present application, referring to Figure 3 The pressing base 220 is internally provided with a pull rod 320, the pull rod 320 is slidably connected with the pressing base 220 in the up-down direction, the lower end of the pull rod 320 is fixedly connected with the pressing plate 230, and the upper end of the pull rod 320 is arranged through the top wall of the pressing base 220. The upper end of the pull rod 320 is provided with a handle 321, and when the handle 321 is pulled upward to pull the pull rod 320, the pressing plate 230 can be driven to move upward.

[0041] According to some embodiments of the present application, the lower end surface of the pressing plate 230 and the bottom of the pressing base 220 are both provided with sawtooth patterns, so as to increase the friction force with the sample strip, and ensure that the pressing plate 230 and the pressing base 220 can stably clamp the sample strip.

[0042] In the description of the present application, the description referring to the term "some embodiments" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A high temperature uniaxial tensile test specimen fixture, characterized by, The utility model relates to a high temperature unidirectional tensile test sample clamp, which comprises a base (100) and two clamping devices (200) arranged symmetrically along the left-right direction. The side wall of the base (100) is provided with a long strip through hole (110) extending along the left-right direction, and the high temperature unidirectional tensile test sample clamp further comprises two locking bolts (120) corresponding to the two clamping devices (200) one by one, the locking bolts (120) pass through the long strip through hole (110) and are threadedly connected with the sliding bases (210) of the clamping devices (200), and the locking bolts (120) can be pressed against the side wall of the base (100) to relatively fix the base (100) and the sliding base (210). A scale (130) is arranged on the base (100) and used for measuring the distance between the two clamping devices (200).

2. The high temperature uniaxial tensile test specimen grip of claim 1, wherein, The sliding base (210) is provided with a positioning groove (211), and the pressing base (220) is provided with a positioning block (221) capable of being inserted into the positioning groove (211) so that the pressing base (220) can move along the left-right direction with the sliding base (210).

3. The high temperature uniaxial tensile test specimen grip of claim 1, wherein, The sliding base (210) is provided with the positioning groove (211) on the side facing the other sliding base (210), and the positioning groove (211) extends through the front side of the sliding base (210) forwardly, and the pressing base (220) is provided with the positioning block (221) on the side away from the other pressing base (220), and the pressing base (220) can move backward so that the positioning block (221) is inserted into the positioning groove (211).

4. The high temperature uniaxial tensile test specimen grip of claim 1, wherein, The pressing base (220) is provided with a sliding rod (310) slidingly connected with the pressing base (220) along the up-down direction, and the lower end of the sliding rod (310) is fixedly connected with the pressing plate (230).

5. The high temperature uniaxial tensile test specimen grip of claim 4, wherein, ​ 6. The high temperature uniaxial tensile test specimen grip of claim 1, wherein, ​ 7. The high temperature uniaxial tensile test specimen grip of claim 6, wherein, The reset spring (300) is sleeved on the slide rod (310), the upper end of the reset spring (300) is connected with the top wall of the pressing seat (220), the lower end of the reset spring (300) is connected with the upper end surface of the pressing plate (230), and the reset spring (300) is always in a compressed state.

8. The high temperature uniaxial tensile test specimen grip of claim 1, wherein, A pull rod (320) is arranged in the pressing seat (220), the pull rod (320) is slidably connected to the pressing seat (220) in the up-down direction, the lower end of the pull rod (320) is fixedly connected to the pressing plate (230), and the upper end of the pull rod (320) penetrates the top wall of the pressing seat (220).

9. The high temperature uniaxial tensile test specimen grip of claim 8, wherein, The upper end of the pull rod (320) is provided with a handle (321).

10. The high temperature uniaxial tensile test specimen clamp of claim 1, wherein, The lower end surface of the pressing plate (230) and the bottom of the pressing seat (220) are both provided with sawtooth patterns.

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