Clamping device of metal tension testing machine

By designing adjustable upper and lower clamp structures, the problem of limited applicability of existing metal tensile testing machine clamps has been solved, enabling the fixing of materials of different shapes and expanding the scope of application of the equipment.

CN223581579UActive Publication Date: 2025-11-21SUZHOU FEMA TEST-TECH CO LTD
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Patent Information

Application Number
CN202423068315.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-11-21
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing metal tensile testing machine clamps have limited applicability and cannot adapt to different shapes of test materials. A universal clamping device is needed to expand the applicability of the equipment.

Method used

A clamping device comprising an upper clamping structure and a lower clamping structure is designed. The upper clamping structure consists of an upper clamping base, a first clamping rod, a second clamping rod, a first fixing component, and a second fixing component. The lower clamping structure consists of a lower clamping base, a fixing block, and a sliding block. The device achieves the fixing of materials of different shapes through adjustable clamping rods and fixing components.

Benefits of technology

It enables the fixation of materials of any shape without the need to change different types of clamping devices, thus expanding the applicability of the equipment and ensuring the smooth progress of the testing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping device of a metal tension testing machine, which belongs to the technical field of metal testing and comprises an upper clamp structure, the upper clamp structure comprises an upper clamp base, a first clamping rod, a second clamping rod, a first fixing component and a second fixing component; the first fixing assembly comprises a first fixing stud and a fixing nut. The second fixing assembly comprises a second fixing stud, a fixing plate and a fixing cylinder. A lower clamp structure; according to the utility model, the upper clamp structure is arranged, the pair of first clamping rods are moved in opposite directions, and the fixing nut is rotated to the first fixing stud; a worker moves a second clamping rod in the opposite direction, places a fixing plate in a limiting groove, penetrates a fixing cylinder into a fixing hole and finally rotates a second fixing stud to the fixing cylinder, to-be-detected materials in any form can be fixed, the worker does not need to replace different types of clamp devices, and therefore the application range of equipment is expanded.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to metal test technical field, and specifically relates to a clamping device of metal tensile testing machine. BACKGROUND

[0002] Metal tensile testing machine is a kind of special equipment for testing the mechanical properties (tensile strength, yield strength, elongation, elastic modulus, etc.) of metal materials, which is widely used in quality inspection of metal materials, and related material science research and education field;Through these tests, the performance of the material can be better understood, and scientific basis is provided for the selection and application of materials;

[0003] The clamping device is the key part of the testing machine, mainly used for fixing the material to be tested to ensure that the material to be tested does not slip or fall off during the stretching process;The clamping device mainly includes an upper clamp, a lower clamp and a clamp seat, wherein the upper clamp and the lower clamp are respectively used for fixing the upper and lower parts of the material to be tested;

[0004] However, the existing clamp is usually a jaw, and different jaw types are suitable for different materials to be tested, for example, a flat sample jaw is used to clamp a flat sample or a small round sample, and a round sample jaw is used to clamp a round sample, which limits the applicability of the metal tensile testing machine, so a clamping device of metal tensile testing machine is needed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of clamping device of metal tensile testing machine to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of clamping device of metal tensile testing machine, comprising:

[0007] The upper clamp structure includes an upper clamp base that can move up and down, a first clamping rod, a second clamping rod, a first fixing assembly and a second fixing assembly, the first clamping rod and the second clamping rod are each provided with a pair of;

[0008] The upper clamp base has a first sliding groove for the first clamping rod to slide, a second sliding groove for the second clamping rod to slide and a first fixing groove, the first clamping rod has a moving slot, a pair of the second clamping rod is inserted into the moving slot, and the second clamping rod has a fixing hole;

[0009] The first fixed assembly and the second fixed assembly are both provided with two pairs, the first fixed assembly comprises a first fixed stud and a fixed nut, the fixed nut is in threaded connection with the first fixed stud, one pair of the first fixed studs are fixedly installed at two end portions of the first clamping rod respectively, the first fixed stud extends upward by a predetermined distance via the first fixed groove, the second fixed assembly comprises a second fixed stud, a fixed plate and a fixed cylinder, the fixed cylinder is fixedly installed on the fixed plate, the second fixed stud is in threaded connection with the fixed cylinder, the second fixed stud is inserted into the fixed hole, the first clamping rod is provided with a second fixed groove, a cross-section diameter of an end portion of the second fixed stud away from the fixed plate is greater than a width of the second fixed groove, and a cross-section width of an end face of the fixed plate away from the second fixed stud is greater than the width of the second fixed groove;

[0010] A lower clamp structure is installed below the upper clamp structure by a predetermined distance.

[0011] As a preferred scheme, the lower clamp structure comprises a lower clamp base, a fixed block and a sliding block, the lower clamp base is placed below the upper clamp base by a predetermined distance, the fixed block is fixedly installed on an upper surface of the lower clamp base, and the sliding block is slidably arranged on the upper surface of the lower clamp base.

[0012] As a preferred scheme, the lower clamp structure further comprises a rotating rod, a rotating handle and a supporting block, the supporting block is fixedly installed on the upper surface of the lower clamp base and is arranged opposite to the fixed block, one end portion of the rotating rod is fixedly installed on a side of the sliding block away from the fixed block, the other end portion of the rotating rod is connected to the rotating handle, and a middle segment of the rotating rod is in threaded connection with the supporting block.

[0013] As a preferred scheme, the first clamping rod is provided with a limiting groove on a side where the second fixed groove is formed, the width of the limiting groove is greater than the width of the second fixed groove, and the cross-section diameter of the end portion of the second fixed stud away from the fixed plate is matched with the width of the limiting groove.

[0014] As a preferred scheme, the second fixed groove and the limiting groove are both provided with two pairs, and one pair of the second fixed groove and the limiting groove are arranged opposite to each other.

[0015] As a preferred scheme, the upper clamp structure further comprises a belt moving cylinder and a belt moving rod, the belt moving cylinder and the belt moving rod are respectively provided with one pair, one pair of the belt moving cylinders are oppositely installed on the upper surface of the upper clamp base, and the belt moving rod is in threaded connection with the belt moving cylinder.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses, be provided with upper clamp structure, upper clamp structure includes upper clamp base, first clamping rod, second clamping rod, first fixed component and second fixed component, and upper clamp base has first sliding slot, second sliding slot and first fixed groove, and first clamping rod has moving groove, and second clamping rod has fixed hole, and first fixed component includes first fixed stud and fixed nut, and second fixed component includes second fixed stud, fixed plate and fixed cylinder, and fixed cylinder is fixedly installed on fixed plate, and second fixed stud is in threaded connection with fixed cylinder, and second fixed stud is inserted in fixed hole, and first clamping rod has second fixed groove;The worker moves upper clamp base, moves first clamping rod, rotates first fixed stud with fixed nut, then, the worker moves second clamping rod, places fixed plate in one of the limiting grooves, and fixed cylinder is inserted into fixed hole;Any form of material to be detected can be fixed, and workers do not need to replace different types of clamp devices, thereby expanding the application range of equipment;

[0018] The utility model discloses, be provided with lower clamp structure includes lower clamp base, fixed block and sliding block, and lower clamp base is placed in the lower of upper clamp base predetermined distance, and fixed block is fixedly installed on the upper surface of lower clamp base, and sliding block is slidably arranged on the upper surface of lower clamp base;Lower clamp structure still includes rotary rod, rotation handle and support block, and support block is fixedly installed on the upper surface of lower clamp base, and is opposite to the setting of fixed block, and one end of rotary rod is fixedly installed on the side of sliding block away from fixed block, and the other end of rotary rod is connected to rotation handle, and the middle section of rotary rod is in threaded connection with support block;The worker places the lower end of material to be detected on lower clamp base and is placed between fixed block and sliding block;Then, rotation handle is rotated, and then rotary rod is driven to rotate around the axial rotation of itself, to make sliding block move towards the direction close to fixed block, so that the lower part of material to be detected is fixed by fixed block and sliding block, guaranteeing that the detection process proceeds normally. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional schematic view of the utility model;

[0020] Figure 2 It is the three-dimensional schematic view of the upper clamp structure of the utility model;

[0021] Figure 3 It is the explosion drawing of the upper clamp structure of the utility model;

[0022] Figure 4 It is the three-dimensional schematic view of the lower clamp structure of the utility model.

[0023] In the figure: 1, the upper clamp structure; 11, the upper clamp base; 111, the first sliding groove; 112, the second sliding groove; 113, the first fixed groove; 12, the first clamping rod; 121, the moving groove; 122, the second fixed groove; 123, the limiting groove; 13, the second clamping rod; 131, the fixed hole; 14, the first fixed assembly; 141, the first fixed stud; 142, the fixed nut; 15, the second fixed assembly; 151, the second fixed stud; 152, the fixed plate; 153, the fixed cylinder; 16, the belt moving cylinder; 17, the belt moving rod; 2, the lower clamp structure; 21, the lower clamp base; 22, the fixed block; 23, the sliding block; 24, the rotating rod; 25, the rotating handle; 26, the supporting block. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with examples.

[0025] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvement of the method of the utility model under the concept of the utility model belongs to the range of protection required by the utility model.

[0026] Please refer to Figures 1-4 The utility model provides a kind of clamping device of metal tensile testing machine, comprising:

[0027] The upper clamp structure 1, the upper clamp structure 1 includes the upper and lower movable upper clamp base 11, the first clamping rod 12, the second clamping rod 13, the first fixed assembly 14 and the second fixed assembly 15, and the first clamping rod 12 and the second clamping rod 13 are each provided with a pair of;

[0028] Among them, the upper clamp base 11 has the first sliding groove 111 for the first clamping rod 12 to slide, the second sliding groove 112 for the second clamping rod 13 to slide and the first fixed groove 113, the first clamping rod 12 has moving groove 121, and a pair of second clamping rods 13 are inserted into moving groove 121, and the second clamping rod 13 has fixed hole 131;

[0029] The first fixing assembly 14 and the second fixing assembly 15 are each provided with two pairs, the first fixing assembly 14 comprises a first fixing stud 141 and a fixing nut 142, the fixing nut 142 is in threaded connection with the first fixing stud 141, one pair of first fixing studs 141 are fixedly installed at two end portions of the first clamping rod 12 respectively, the first fixing stud 141 extends upwards by a predetermined distance via the first fixing groove 113, the second fixing assembly 15 comprises a second fixing stud 151, a fixing plate 152 and a fixing cylinder 153, the fixing cylinder 153 is fixedly installed on the fixing plate 152, the second fixing stud 151 is in threaded connection with the fixing cylinder 153, the second fixing stud 151 is inserted into the fixing hole 131, the first clamping rod 12 is provided with a second fixing groove 122, a cross-sectional diameter of an end portion of the second fixing stud 151 away from the fixing plate 152 is greater than a width of the second fixing groove 122, a cross-sectional width of an end face of the fixing plate 152 away from the second fixing stud 151 is greater than the width of the second fixing groove 122;

[0030] The lower clamp structure 2 is installed below the upper clamp structure 1 by a predetermined distance;

[0031] The lower clamp structure 2 comprises a lower clamp base 21, a fixing block 22 and a sliding block 23, the lower clamp base 21 is placed below the upper clamp base 11 by a predetermined distance, the fixing block 22 is fixedly installed on an upper surface of the lower clamp base 21, and the sliding block 23 is slidably arranged on the upper surface of the lower clamp base 21;

[0032] The lower clamp structure 2 further comprises a rotating rod 24, a rotating handle 25 and a supporting block 26, the supporting block 26 is fixedly installed on the upper surface of the lower clamp base 21 and is arranged opposite to the fixing block 22, one end portion of the rotating rod 24 is fixedly installed on a side of the sliding block 23 away from the fixing block 22, the other end portion of the rotating rod 24 is connected to the rotating handle 25, and a middle segment of the rotating rod 24 is in threaded connection with the supporting block 26;

[0033] The first clamping rod 12 is provided with a limiting groove 123 on a side where the second fixing groove 122 is formed, a width of the limiting groove 123 is greater than a width of the second fixing groove 122, and a cross-sectional diameter of an end portion of the second fixing stud 151 away from the fixing plate 152 is matched with the width of the limiting groove 123;

[0034] The second fixing groove 122 and the limiting groove 123 are each provided with two pairs, one pair of the second fixing groove 122 and the limiting groove 123 are arranged opposite to each other;

[0035] The upper clamp structure 1 further comprises a belt moving cylinder 16 and a belt moving rod 17, the belt moving cylinder 16 and the belt moving rod 17 are each provided with one pair, one pair of the belt moving cylinders 16 are oppositely installed on an upper surface of the upper clamp base 11, and the belt moving rod 17 is in threaded connection with the belt moving cylinder 16.

[0036] The working principle and use process of the utility model:

[0037] Firstly, the worker places the lower end part of the material to be detected between the fixed block 22 and the sliding block 23 of the lower clamp base 21; then, rotates the rotating handle 25, and drives the rotating rod 24 to rotate around the axis, so that the sliding block 23 moves towards the fixed block 22, until the lower part of the material to be detected is fixed by the fixed block 22 and the sliding block 23;

[0038] After the lower end part of the material to be detected is fixed, the worker moves the upper clamp base 11, so that the upper end part of the material to be detected is placed between the pair of first clamping rods 12 and the second clamping rods 13; firstly, the worker moves the first clamping rod 12, so that the pair of first clamping rods 12 moves towards each other; then, the fixed nut 142 is rotated to the first fixed stud 141 at the two end parts of one of the first clamping rods 12, and the fixed nut 142 is rotated to the first fixed stud 141 at the two end parts of the other first clamping rod 12, so that the pair of first clamping rods 12 completely fixes the lower end part of the material to be detected and the upper clamp base 11;

[0039] Subsequently, the worker moves the second clamping rod 13, so that the pair of second clamping rods 13 moves towards each other; then, the fixed plate 152 is placed in one of the limiting grooves 123, and the fixed cylinder 153 is inserted into the pair of fixed holes 131 of one of the second clamping rods 13; then, the second fixed stud 151 is rotated to the fixed cylinder 153, until the end part of the second fixed stud 151 away from the fixed cylinder 153 is placed in the other limiting groove 123; similarly, the other second clamping rod 13 is also fixed with the upper clamp base 11 through the second fixed stud 151 and the fixed cylinder 153; in this way, the pair of second clamping rods 13 completely fixes the upper end part of the material to be detected and the upper clamp base 11; by arranging the first clamping rod 12 and the second clamping rod 13, any form of material to be detected can be fixed, without the worker replacing different types of clamp devices, thereby expanding the application range of the equipment.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a metal tensile testing machine, characterized in that The utility model relates to a double-clamp structure for a glass bottle, which comprises: An upper clamp structure (1) comprising a vertically movable upper clamp base (11), a first clamping rod (12), a second clamping rod (13), a first fixing assembly (14), and a second fixing assembly (15), wherein the first clamping rod (12) and the second clamping rod (13) are each provided with a pair of; The upper clamp base (11) has a first sliding groove (111) for the first clamping rod (12) to slide in, a second sliding groove (112) for the second clamping rod (13) to slide in, and a first fixing groove (113), the first clamping rod (12) has a moving groove (121) into which a pair of the second clamping rod (13) is inserted, and the second clamping rod (13) has a fixing hole (131); The first fixing assembly (14) and the second fixing assembly (15) are each provided with two pairs, the first fixing assembly (14) comprises a first fixing stud (141) and a fixing nut (142), the fixing nut (142) is threadedly connected with the first fixing stud (141), a pair of the first fixing stud (141) is fixedly installed at two ends of the first clamping rod (12) respectively, the first fixing stud (141) extends upward by a predetermined distance via the first fixing groove (113), the second fixing assembly (15) comprises a second fixing stud (151), a fixing plate (152), and a fixing cylinder (153), the fixing cylinder (153) is fixedly installed on the fixing plate (152), the second fixing stud (151) is threadedly connected with the fixing cylinder (153), the second fixing stud (151) is inserted into the fixing hole (131), the first clamping rod (12) has a second fixing groove (122), the cross-sectional diameter of an end of the second fixing stud (151) away from the fixing plate (152) is greater than the width of the second fixing groove (122), and the cross-sectional width of an end surface of the fixing plate (152) away from the second fixing stud (151) is greater than the width of the second fixing groove (122); A lower clamp structure (2) installed a predetermined distance below the upper clamp structure (1).

2. A gripping device for a metal tensile testing machine according to claim 1, characterized in that: The lower clamp structure (2) comprises a lower clamp base (21), a fixing block (22), and a sliding block (23), the lower clamp base (21) is placed a predetermined distance below the upper clamp base (11), the fixing block (22) is fixedly installed on the upper surface of the lower clamp base (21), and the sliding block (23) is slidably arranged on the upper surface of the lower clamp base (21).

3. A gripping device for a metal tensile testing machine according to claim 2, characterized in that: The lower clamp structure (2) further comprises a rotating rod (24), a rotating handle (25) and a supporting block (26), the supporting block (26) is fixedly installed on the upper surface of the lower clamp base (21) and is arranged opposite to the fixed block (22), one end of the rotating rod (24) is fixedly installed on the side of the sliding block (23) away from the fixed block (22), the other end of the rotating rod (24) is connected to the rotating handle (25), and the middle section of the rotating rod (24) is threadedly connected with the supporting block (26).

4. The gripping device of a metal tensile testing machine according to claim 2, characterized in that: The first clamping rod (12) is provided with a limiting groove (123) on the side where the second fixed groove (122) is formed, the width of the limiting groove (123) is greater than the width of the second fixed groove (122), and the section diameter of the end of the second fixed stud (151) away from the fixed plate (152) is matched with the width of the limiting groove (123).

5. A gripping device for a metal tensile testing machine according to claim 4, characterized in that: The second fixed groove (122) and the limiting groove (123) are both provided with two pairs, and one pair of the second fixed groove (122) and the limiting groove (123) are arranged opposite to each other.

6. A gripping device for a metal tensile testing machine according to claim 5, characterized in that: The upper clamp structure (1) further comprises a belt moving cylinder (16) and a belt moving rod (17), the belt moving cylinder (16) and the belt moving rod (17) are respectively provided with a pair, one pair of the belt moving cylinder (16) is oppositely installed on the upper surface of the upper clamp base (11), and the belt moving rod (17) is threadedly connected with the belt moving cylinder (16).