A tensile testing machine clamp capable of holding cylindrical rod-shaped samples of different diameters.

Abstract

This invention discloses a tensile testing machine clamp capable of holding cylindrical rod-shaped samples of different diameters. It includes a mounting column, a servo motor a, and a servo motor b. Servo motor a is mounted on one side of the inner wall of the mounting column, and servo motor b is positioned above the mounting column. A rotating rod is mounted at the output end of servo motor a, and one end of the rotating rod is connected to a threaded sleeve. A lead screw is threaded to one side of the inner wall of the threaded sleeve. A movable rod is mounted at the output end of servo motor b, and a limit plate is mounted on one side of the movable rod. A connecting strip is wound around the surface of the movable rod. Through the arrangement of the mounting column, servo motor a, rotating rod, threaded sleeve, lead screw, movable ring, connecting plate, and clamping plate, this invention achieves the effect of clamping cylindrical samples of different sizes and is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of tensile testing machine fixtures, specifically a tensile testing machine fixture capable of holding cylindrical rod-shaped samples of different diameters. Background Technology

[0002] The fixture of a tensile testing machine is an indispensable part of an electronic tensile testing machine. The fixture holds the specimen and applies force to it. The magnitude of the test force that the fixture can withstand is a very important indicator of the fixture, which determines the size of the fixture structure and the labor intensity of operating the fixture.

[0003] The existing tensile testing machine fixture, which can hold cylindrical rod-shaped samples of different diameters, has the following drawbacks:

[0004] 1. Prior art document CN203011765U discloses a special clamping device for a tubular ring tensile test, comprising: "a special clamp is a U-shaped mold block, the tubular ring to be tested is inserted into the U-shaped groove of the special clamp, the back part of the U-shaped groove of the special clamp is integrally connected with the root of the tail fixing component, a pin passes through the pin hole of the special clamp and crosses the U-shaped groove of the special clamp, the pin post is cylindrical, so that the tubular ring to be tested is fitted on the pin, the tensile testing machine transmits tensile force to the special clamp through the tail fixing component, and then applies radial tension to the tubular ring to be tested by pulling the side of the pin post of the pin." The device involves clamping the two tail-end fixing components of different specialized clamping devices for tube ring tensile testing into different fixtures of a tensile testing machine, simultaneously fitting the tube ring specimen onto two pins. This invention can be easily clamped onto various tensile testing machines to perform tube ring tensile tests on steel pipes of various materials and sizes, providing stable test results. The device is also compact and easy to install and remove. However, when using the aforementioned device, operators need to install circular steel pipes of different sizes, but most devices are difficult to automatically control their fixing effect, making the use of this device relatively difficult.

[0005] 2. In the prior art, a stretching machine clamp that can hold cylindrical rod-shaped samples of different diameters requires the operator to provide a certain rebound force during the rope pulling process to prevent it from rebounding and causing damage to other objects. Summary of the Invention

[0006] The purpose of this invention is to provide a tensile machine clamp that can hold cylindrical rod-shaped samples of different diameters, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a tensile machine fixture capable of clamping cylindrical rod-shaped samples of different diameters, comprising a mounting column, a servo motor a, and a servo motor b. Servo motor a is disposed on one side of the inner wall of the mounting column, and servo motor b is disposed above the mounting column. A rotating rod is disposed at the output end of servo motor a, and one end of the rotating rod is connected to a threaded sleeve. A lead screw is threadedly connected to one side of the inner wall of the threaded sleeve. A movable rod is disposed at the output end of servo motor b, and a limit plate is mounted on one side of the surface of the movable rod. A connecting strip is wound around the surface of the movable rod.

[0008] Preferably, a movable ring is connected to the top of the lead screw, a connecting plate is installed on one side of the surface of the movable ring, and a clamping plate is connected to one side of the top of the connecting plate via a rotating shaft.

[0009] Preferably, one end of the connecting strip is connected to a fixing block, and the bottom of the fixing block is installed on the top of the mounting column.

[0010] Preferably, a fixing ring is installed on one side of the inner wall of the mounting column, and one side of the inner wall of the fixing ring is disposed on the surface of the servo motor a, and a bearing support rod is connected to the surface of the threaded sleeve.

[0011] Preferably, a telescopic rod is installed on one side of the surface of the bearing support rod, and the top end of the telescopic rod is connected to the bottom of the connecting plate.

[0012] Preferably, a shrink frame is installed on one side of the bottom of the mounting column, and a tapered limiting frame is provided on one side of the shrink frame.

[0013] Preferably, a lifting frame is attached to one side of the top of the fixing block, a motor box is installed inside the lifting frame, and one side of the inner wall of the motor box is set on the surface of the servo motor b through a mounting ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This invention achieves the effect of clamping cylindrical samples of different sizes by setting up a mounting column, servo motor a, rotating rod, threaded sleeve, lead screw, movable ring, connecting plate and clamping plate, and is convenient to use.

[0016] 2. The present invention achieves effective anti-rebound effect inside the device by setting up a servo motor b, a movable rod, a limiting plate and a connecting belt, and is convenient to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural view of the present invention;

[0018] Figure 2This is a perspective view of the mounting column structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the drive motor a structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the drive motor b of the present invention.

[0021] In the diagram: 1. Mounting column; 2. Servo motor a; 3. Servo motor b; 4. Rotating rod; 5. Threaded sleeve; 6. Lead screw; 7. Movable rod; 8. Limiting plate; 9. Connecting belt; 10. Movable ring; 11. Connecting plate; 12. Clamping plate; 13. Fixing block; 14. Fixing ring; 15. Bearing support rod; 16. Telescopic rod; 17. Retractable frame; 18. Conical limiting frame; 19. Lifting frame; 20. Motor box. Detailed Implementation

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Example 1:

[0026] Please see Figure 1 and Figure 2 and Figure 3According to one embodiment of the present invention, a tensile machine fixture capable of clamping cylindrical rod-shaped samples of different diameters includes a mounting column 1, a servo motor a2 and a servo motor b3. The servo motor a2 is provided on one side of the inner wall of the mounting column 1, and the servo motor b3 is provided above the mounting column 1. A rotating rod 4 is provided at the output end of the servo motor a2. One end of the rotating rod 4 is connected to a threaded sleeve 5, and a lead screw 6 is threadedly connected to one side of the inner wall of the threaded sleeve 5.

[0027] In use, the operator needs to clamp cylindrical samples of various sizes using the device. A servo motor a2 is installed inside the mounting column 1 via a fixing ring 14. When the operator connects the servo motor a2 to the power supply, the output end of the servo motor a2 drives the rotating rod 4 to rotate, and at one end of the rotating rod 4, it drives the threaded sleeve 5 to rotate. This causes the threaded sleeve 5 to drive the internally threaded lead screw 6 to move up and down, and is limited by a telescopic rod 16 on one side. A movable ring 10 is installed at the top of the lead screw 6, and the movable ring 10 connects to the clamping plate 12 via a connecting plate 11 on one side. When the device moves inward, the conical limiting frame 18 compresses the distance between the clamping plates 12, thereby fixing the device in place, preventing it from falling off, and providing a certain degree of stability. This achieves the effect of clamping cylindrical samples of different sizes and is convenient to use.

[0028] Example 2:

[0029] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 According to one embodiment of the present invention, a tensile machine fixture capable of clamping cylindrical rod-shaped samples of different diameters includes a mounting column 1, a servo motor a2 and a servo motor b3. The output end of the servo motor b3 is provided with a movable rod 7. A limit plate 8 is installed on one side of the surface of the movable rod 7. A connecting strip 9 is wound around the surface of the movable rod 7. A movable ring 10 is connected to the top of the lead screw 6. A connecting plate 11 is installed on one side of the surface of the movable ring 10. A clamping plate 12 is connected to one side of the top of the connecting plate 11 through a rotating shaft. A fixing block 13 is connected to one end of the connecting strip 9, and the bottom of the fixing block 13 is installed on the top of the mounting column 1.

[0030] When in use, the operator needs to provide a certain buffering effect to the device. Because a servo motor b3 is installed inside the device, the operator connects the servo motor b3 to the power supply. The output end of the servo motor b3 drives the movable rod 7 to rotate. A limit plate 8 is installed on the surface of the movable rod 7. A connecting strap 9 is wrapped around one side of the limit plate 8 and the surface of the movable rod 7. The device buffers the bottom fixing block 13 within a limited range through the connecting strap 9, thereby achieving an effective anti-rebound effect inside the device and making it convenient to use.

[0031] A fixing ring 14 is installed on one side of the inner wall of the mounting column 1, and one side of the inner wall of the fixing ring 14 is set on the surface of the servo motor a2. A bearing support rod 15 is connected to the surface of the threaded sleeve 5. A telescopic rod 16 is installed on one side of the surface of the bearing support rod 15, and the top of the telescopic rod 16 is connected to the bottom of the connecting plate 11. A retraction frame 17 is installed on one side of the bottom of the mounting column 1, and a conical limiting frame 18 is set on one side of the retraction frame 17. A lifting frame 19 overlaps on one side of the top of the fixing block 13. A motor box 20 is installed on one side inside the lifting frame 19, and one side of the inner wall of the motor box 20 is set on the surface of the servo motor b3 through the mounting ring.

[0032] In this invention, the working steps of the device are as follows:

[0033] During use, the operator needs to clamp cylindrical samples of various sizes using the device. A servo motor a2 is installed inside the mounting column 1 via a fixing ring 14. When the operator connects the servo motor a2 to the power supply, the output end of the servo motor a2 drives the rotating rod 4 to rotate. One end of the rotating rod 4 drives the threaded sleeve 5 to rotate, causing the threaded sleeve 5 to drive the internally threaded lead screw 6 to move up and down. Limiting is achieved through a telescopic rod 16 on one side. A movable ring 10 is installed at the top of the lead screw 6. The movable ring 10 connects to the clamping plate 12 via a connecting plate 11 on one side. When the device moves inward, the conical limiting frame 18 compresses the distance between the clamping plates 12, thereby clamping the device... The device is fixed in place to prevent it from falling off and has a certain degree of stability, thus achieving the effect of clamping cylindrical samples of different sizes and making it convenient to use. During use, the operator needs to provide a certain buffering effect because a servo motor b3 is installed inside the device. When the operator connects the servo motor b3 to the power supply, the output end of the servo motor b3 drives the movable rod 7 to rotate. A limit plate 8 is installed on the surface of the movable rod 7, and a connecting strap 9 is wrapped around one side of the limit plate 8 and the surface of the movable rod 7. This allows the device to buffer the fixed block 13 at the bottom within a limited range through the connecting strap 9, thereby achieving an effective anti-rebound effect inside the device and making it convenient to use.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tensile testing machine fixture capable of clamping cylindrical rod-shaped samples of different diameters, comprising a mounting column (1), a servo motor a (2), and a servo motor b (3), characterized in that: A servo motor a (2) is provided on one side of the inner wall of the mounting column (1), and a servo motor b (3) is provided above the mounting column (1); The output end of the servo motor a (2) is provided with a rotating rod (4), one end of the rotating rod (4) is connected to a threaded sleeve (5), and a lead screw (6) is threadedly connected to one side of the inner wall of the threaded sleeve (5). The output end of the servo motor b (3) is provided with a movable rod (7), a limit plate (8) is installed on one side of the surface of the movable rod (7), and a connecting strip (9) is wound around the surface of the movable rod (7); One end of the connecting strip (9) is connected to a fixing block (13), and the bottom of the fixing block (13) is installed on the top of the mounting column (1).

2. The tensile testing machine fixture for clamping cylindrical rod-shaped samples of different diameters according to claim 1, characterized in that: The top end of the lead screw (6) is connected to a movable ring (10), and a connecting plate (11) is installed on one side of the surface of the movable ring (10). A clamping plate (12) is connected to one side of the top of the connecting plate (11) via a rotating shaft.

3. A tensile testing machine clamp for holding cylindrical rod-shaped samples of different diameters according to claim 1, characterized in that: A fixing ring (14) is installed on one side of the inner wall of the mounting column (1), and one side of the inner wall of the fixing ring (14) is located on the surface of the servo motor a (2). A bearing support rod (15) is connected to the surface of the threaded sleeve (5).

4. A tensile testing machine fixture for clamping cylindrical rod-shaped samples of different diameters according to claim 3, characterized in that: A telescopic rod (16) is installed on one side of the surface of the bearing support rod (15), and the top end of the telescopic rod (16) is connected to the bottom of the connecting plate (11).

5. A tensile testing machine fixture for clamping cylindrical rod-shaped samples of different diameters according to claim 1, characterized in that: A shrinkage frame (17) is installed on one side of the bottom of the mounting column (1), and a conical limiting frame (18) is provided on one side of the shrinkage frame (17).

6. A tensile testing machine fixture for clamping cylindrical rod-shaped samples of different diameters according to claim 1, characterized in that: A lifting frame (19) is attached to one side of the top of the fixed block (13). A motor box (20) is installed on one side inside the lifting frame (19), and one side of the inner wall of the motor box (20) is set on the surface of the servo motor b (3) through a mounting ring.

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