A tensile testing machine with quick change test fixtures

Abstract

The application provides a tensile testing machine with quickly replaceable test clamps, and belongs to the technical field of tensile testing machines. The tensile testing machine with quickly replaceable test clamps comprises a control box, a rack, a digital tensile testing instrument, a base, a sliding rail, a sliding block, a height adjusting mechanism, a first clamping mechanism and a second clamping mechanism. The lower end of the rack is fixed on the upper surface of the control box. The base is fixed on the upper surface of the control box. The sliding rail is fixed on the upper surface of the base. The sliding block is slidingly arranged on the sliding rail. The height adjusting mechanism is installed on the rack and the digital tensile testing instrument. The tensile testing machine with quickly replaceable test clamps realizes the quick replacement of the second clamping mechanism by means of the sliding block and the sliding rail, eliminates bolts, saves time and effort, improves the replacement efficiency of the second clamping mechanism, and brings better use experience to users.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing machine technology, specifically to a tensile testing machine with a quick-change test fixture. Background Technology

[0002] Tensile testing machines are mechanical force-applying testing machines used to perform static load, tensile, compression, bending, shear, tear, and peel tests on various materials. They are suitable for testing the physical and mechanical properties of materials such as plastic sheets, pipes, profiles, plastic films, rubber, wires and cables, steel, and fiberglass. They are indispensable testing equipment for material development, physical property testing, teaching research, and quality control. The tensile testing machine's clamps are a crucial component; different materials require different clamps, and the clamps are a significant factor in the smooth conduct of the test and the accuracy of the results. Tensile testing machines typically have two testing clamps: an upper clamp and a lower clamp. Currently, to accommodate different products, the lower clamp often needs to be replaced. However, replacing the lower clamp often requires disassembling and assembling multiple bolts, making it time-consuming and labor-intensive, reducing replacement efficiency, and resulting in a poor user experience. Utility Model Content

[0003] In view of this, the problem to be solved by this utility model is to provide a tensile testing machine with quick-change test fixtures.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: a tensile testing machine with quick-change test fixtures, including a control box, a frame, a digital display tensile testing instrument, a base, a slide rail, a slider, a height adjustment mechanism, a first clamping mechanism and a second clamping mechanism. The lower end of the frame is fixed to the upper surface of the control box, the base is fixed to the upper surface of the control box, the slide rail is fixed to the upper surface of the base, and the slider is slidably disposed on the slide rail.

[0005] The height adjustment mechanism is installed on the frame and the digital display tensile tester. The height adjustment mechanism is used to adjust the height of the digital display tensile tester.

[0006] The first clamping mechanism is installed on the digital display tensile tester, and the first clamping mechanism is set to clamp the upper end of the product;

[0007] The second clamping mechanism is mounted on the slider, and the second clamping mechanism is configured to clamp the lower end of the product.

[0008] In one embodiment of this application, the height adjustment mechanism includes a lead screw, a first guide rod, a connecting block, and a motor. The lower end of the lead screw is rotatably disposed within the frame. The motor is fixed to the upper surface of the frame. The lower end of the motor's output shaft is fixed together with the upper end of the lead screw. The first guide rod is fixed within the frame. The connecting block is threaded onto the lead screw and slidably disposed on the first guide rod. The digital tensile tester is fixed to the outer wall of the connecting block.

[0009] In one embodiment of this application, the first clamping mechanism includes a U-shaped block, a first clamping block, a second clamping block, and a threaded rod. The U-shaped block is mounted on the digital tensile testing instrument, the first clamping block is fixed inside the U-shaped block, the threaded rod is threaded through the U-shaped block, and the end of the threaded rod is rotatably disposed on the second clamping block. The first clamping block and the second clamping block are correspondingly disposed.

[0010] In one embodiment of this application, the threaded rod has a groove.

[0011] In one embodiment of this application, a positioning groove is provided on the slide rail, and the slider is slidably inserted into the positioning groove.

[0012] In one embodiment of this application, the second clamping mechanism includes a support block, a first ear plate, a second ear plate, a guide sleeve, a second guide rod, a hand-held part, a connector, a third clamping block, and a fourth clamping block. The support block and the third clamping block are both fixed to the upper surface of the slider, and the first ear plate and the second ear plate are both fixed to the side surface of the support block.

[0013] The guide sleeve is fixed to the first ear plate, the second guide rod slides through the guide sleeve, one end of the second guide rod is fixed to the outer wall of the fourth clamping block, one end of the connector is rotatably disposed on the other end of the second guide rod, the other end of the connector is rotatably disposed on the hand grip, and the hand grip is also rotatably disposed on the second ear plate.

[0014] In one embodiment of this application, the control box is equipped with control buttons, and the motor and the digital tensile tester are both electrically connected to the control box.

[0015] In one embodiment of this application, the third clamping block and the second clamping block are respectively arranged.

[0016] The advantages and positive effects of this utility model are:

[0017] The second clamping mechanism can be quickly replaced by using sliders and slide rails, eliminating the need for bolts, saving time and effort, improving the efficiency of replacing the second clamping mechanism, and providing users with a better user experience. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of a tensile testing machine with a quick-change test fixture according to the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the height adjustment mechanism of this utility model;

[0021] Figure 3 This is a diagram showing the relationship between the digital display tensile tester and the first clamping mechanism of this utility model;

[0022] Figure 4 This is a diagram showing the relationship between the control box and the second clamping mechanism of this utility model;

[0023] Figure 5 This is a diagram showing the relationship between the base and the slide rail of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the second clamping mechanism of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the slider of this utility model.

[0026] In the diagram: 110, Control box; 120, Frame; 130, Height adjustment mechanism; 131, Lead screw; 132, First guide rod; 133, Connecting block; 134, Motor; 140, Digital display tensile tester; 150, First clamping mechanism; 151, U-shaped block; 152, First clamping block; 153, Second clamping block; 154, Threaded rod; 155, Groove; 160, Base; 170, Slide rail; 180, Positioning groove; 190, Slider; 191, Second clamping mechanism; 1911, Support block; 1912, First ear plate; 1913, Second ear plate; 1914, Guide sleeve; 1915, Second guide rod; 1916, Handheld part; 1917, Connector; 1918, Third clamping block; 1919, Fourth clamping block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1-7 This application provides a technical solution: a tensile testing machine with quick-change test fixtures, including a control box 110, a frame 120, a digital display tensile tester 140, a base 160, a slide rail 170, a slider 190, a height adjustment mechanism 130, a first clamping mechanism 150, and a second clamping mechanism 191. The lower end of the frame 120 is fixed to the upper surface of the control box 110, the base 160 is fixed to the upper surface of the control box 110, the slide rail 170 is fixed to the upper surface of the base 160, the slider 190 is slidably disposed on the slide rail 170, the slide rail 170 is provided with a positioning groove 180, the slider 190 is slidably inserted into the positioning groove 180, and the positioning groove 180 makes the slider 190 and the slide rail 170 more smoothly assembled together.

[0031] The height adjustment mechanism 130 is installed on the frame 120 and the digital display tensile tester 140. The height adjustment mechanism 130 is used to adjust the height of the digital display tensile tester 140. The height adjustment mechanism 130 includes a lead screw 131, a first guide rod 132, a connecting block 133 and a motor 134. The lower end of the lead screw 131 is rotatably disposed inside the frame 120. The motor 134 is fixed on the upper surface of the frame 120. The lower end of the output shaft of the motor 134 is fixed together with the upper end of the lead screw 131. The first guide rod 132 is fixed inside the frame 120. The connecting block 133 is threaded onto the lead screw 131. The connecting block 133 is also slidably disposed on the first guide rod 132. The digital display tensile tester 140 is fixed on the outer wall of the connecting block 133.

[0032] The first clamping mechanism 150 is installed on the digital display tensile tester 140. The first clamping mechanism 150 is used to clamp the upper end of the product. The first clamping mechanism 150 includes a U-shaped block 151, a first clamping block 152, a second clamping block 153 and a threaded rod 154. The U-shaped block 151 is installed on the digital display tensile tester 140. The first clamping block 152 is fixed inside the U-shaped block 151. The threaded rod 154 is threaded through the U-shaped block 151. The end of the threaded rod 154 is rotatably mounted on the second clamping block 153. The first clamping block 152 and the second clamping block 153 are correspondingly arranged. The threaded rod 154 has a groove 155. The groove 155 is provided to facilitate the tightening of the threaded rod 154.

[0033] The second clamping mechanism 191 is mounted on the slider 190. The second clamping mechanism 191 is used to clamp the lower end of the product. The second clamping mechanism 191 includes a support block 1911, a first ear plate 1912, a second ear plate 1913, a guide sleeve 1914, a second guide rod 1915, a handheld part 1916, a connecting piece 1917, a third clamping block 1918, and a fourth clamping block 1919. The support block 1911 and the third clamping block 1918 are both fixed to the upper surface of the slider 190. The first ear plate 1912 and the second ear plate 1913 are both fixed to the side surface of the support block 1911. The guide sleeve 1914 is fixed... On the first ear plate 1912, the second guide rod 1915 slides through the guide sleeve 1914. One end of the second guide rod 1915 is fixed on the outer wall of the fourth clamping block 1919. One end of the connector 1917 is rotatably mounted on the other end of the second guide rod 1915, and the other end of the connector 1917 is rotatably mounted on the handheld part 1916. The handheld part 1916 is also rotatably mounted on the second ear plate 1913. The control box 110 is equipped with control buttons. The motor 134 and the digital display tensile tester 140 are both electrically connected to the control box 110. The third clamping block 1918 and the second clamping block 153 are correspondingly arranged.

[0034] The working principle and process of this utility model are as follows: In use, according to the product model, insert the slider 190 on the corresponding second clamping mechanism 191 into the slide rail 170, push the slider 190 to its end to install the second clamping mechanism 191. Place the lower end of the product between the third clamping block 1918 and the fourth clamping block 1919, move the hand-held part 1916 to bring the fourth clamping block 1919 closer to the third clamping block 1918, thus clamping the lower end of the product. Then, operate the button on the control box 110 to control the motor 134 to work. The rotation of the output shaft of the motor 134 drives the lead screw 131 to rotate, and the connecting block 133, under the combined action of the lead screw 131 and the first guide rod 132, achieves... The vertical movement controls the rotation direction of the output shaft of motor 134, causing U-shaped block 151 to move downwards. The upper end of the product enters between the first clamping block 152 and the second clamping block 153. Rotating threaded rod 154 causes the second clamping block 153 to move towards the first clamping block 152, thus clamping the upper end of the product. Then, control box 110 controls the output shaft of motor 134 to reverse, causing digital display tensile tester 140 to move upwards, completing the tensile test. This tensile tester with quick-change test fixtures utilizes slider 190 and slide rail 170 to quickly replace the second clamping mechanism 191, eliminating bolts, saving time and effort, improving the replacement efficiency of the second clamping mechanism 191, and providing users with a better user experience.

[0035] The embodiments of this utility model have been described in detail above, but the content is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A tensile testing machine with quickly changeable test fixtures, characterized in that, The device includes a control box (110), a frame (120), a digital tensile tester (140), a base (160), a slide rail (170), a slider (190), a height adjustment mechanism (130), a first clamping mechanism (150), and a second clamping mechanism (191). The lower end of the frame (120) is fixed to the upper surface of the control box (110), the base (160) is fixed to the upper surface of the control box (110), the slide rail (170) is fixed to the upper surface of the base (160), and the slider (190) is slidably disposed on the slide rail (170). The height adjustment mechanism (130) is installed on the frame (120) and the digital display tensile tester (140). The height adjustment mechanism (130) is used to adjust the height of the digital display tensile tester (140). The first clamping mechanism (150) is mounted on the digital tensile tester (140), and the first clamping mechanism (150) is configured to clamp the upper end of the product; The second clamping mechanism (191) is mounted on the slider (190), and the second clamping mechanism (191) is configured to clamp the lower end of the product.

2. A tensile testing machine with quickly interchangeable test fixtures according to claim 1, characterized in that, The height adjustment mechanism (130) includes a lead screw (131), a first guide rod (132), a connecting block (133), and a motor (134). The lower end of the lead screw (131) is rotatably disposed within the frame (120). The motor (134) is fixed on the upper surface of the frame (120). The lower end of the output shaft of the motor (134) is fixed together with the upper end of the lead screw (131). The first guide rod (132) is fixed within the frame (120). The connecting block (133) is threaded onto the lead screw (131) and also slidably disposed on the first guide rod (132). The digital tensile tester (140) is fixed on the outer wall of the connecting block (133).

3. A tensile testing machine with quickly interchangeable test fixtures according to claim 1, characterized in that, The first clamping mechanism (150) includes a U-shaped block (151), a first clamping block (152), a second clamping block (153), and a threaded rod (154). The U-shaped block (151) is mounted on the digital tensile tester (140). The first clamping block (152) is fixed inside the U-shaped block (151). The threaded rod (154) is threaded through the U-shaped block (151). The end of the threaded rod (154) is rotatably mounted on the second clamping block (153). The first clamping block (152) and the second clamping block (153) are correspondingly arranged.

4. A tensile testing machine with quickly interchangeable test fixtures according to claim 3, characterized in that, The threaded rod (154) has a groove (155).

5. A tensile testing machine with quickly interchangeable test fixtures according to claim 1, characterized in that, The slide rail (170) is provided with a positioning groove (180), and the slider (190) is slidably inserted into the positioning groove (180).

6. A tensile testing machine with quickly interchangeable test fixtures according to claim 3, characterized in that, The second clamping mechanism (191) includes a support block (1911), a first ear plate (1912), a second ear plate (1913), a guide sleeve (1914), a second guide rod (1915), a hand grip (1916), a connector (1917), a third clamping block (1918), and a fourth clamping block (1919). The support block (1911) and the third clamping block (1918) are both fixed on the upper surface of the slider (190), and the first ear plate (1912) and the second ear plate (1913) are both fixed on the side surface of the support block (1911). The guide sleeve (1914) is fixed on the first ear plate (1912), and the second guide rod (1915) slides through the guide sleeve (1914). One end of the second guide rod (1915) is fixed on the outer wall of the fourth clamping block (1919). One end of the connector (1917) is rotatably disposed on the other end of the second guide rod (1915), and the other end of the connector (1917) is rotatably disposed on the handhold part (1916). The handhold part (1916) is also rotatably disposed on the second ear plate (1913).

7. A tensile testing machine with quickly interchangeable test fixtures according to claim 2, characterized in that, The control box (110) is equipped with control buttons, and the motor (134) and the digital tensile tester (140) are both electrically connected to the control box (110).

8. A tensile testing machine with a quickly interchangeable test fixture according to claim 6, characterized in that, The third clamping block (1918) and the second clamping block (153) are respectively provided.

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