High-precision torsion testing machine

Abstract

The utility model discloses a high-precision torsion testing machine, and relates to the technical field of torsion machines. The device comprises a workbench, a fixing frame is fixedly connected to the top end of the workbench close to the center of one side, a sliding groove is formed in the top end of the workbench close to the center of the other side, and a sliding block is slidably connected to the top end of the workbench and located at the sliding groove. A scale ring is fixedly connected to the center of the side end, close to the sliding block, of the fixing frame, a rotating disc is rotationally connected to the side end, located in the center of the scale ring, of the fixing frame, and clamps are symmetrically and fixedly connected to the opposite ends of the rotating disc and the sliding block. According to the utility model, the torsion angle data of the sample can be intuitively obtained by starting the electric cylinder and the motor and under the mutual cooperation of the rotating disc, the clamp, the pointer and the scale ring, and compared with a high-precision measuring instrument, the torsion angle measuring device is relatively low in maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of torsion testing technology, specifically a high-precision torsion testing machine. Background Technology

[0002] Torsion testing machine, also known as torsion tester, is a device mainly used to test the torsional properties of various materials. With the addition of corresponding accessories, it can also be used to test the torsional resistance of parts and components. It is an essential testing and inspection device for quality inspection units, colleges and universities, scientific research institutes and industrial and mining enterprises.

[0003] In a Chinese patent with publication number CN220854500U entitled "A Torsion Testing Machine", a second motor is started to rotate the turntable. Then, the positioning rod slides inside the positioning groove, which drives the center of the clamping block to move, thereby fixing one end of the part. Then, the first motor is started to rotate the first screw, which drives the third motor to move to the left through the first rotating block. Then, the right pulley and the left pulley slide inside the right slide groove and the left slide groove, thereby positioning and moving the third motor, which facilitates fixing the part.

[0004] The aforementioned equipment, when performing torsion tests on workpieces, lacks corresponding protective measures. When the sample breaks under significant torsional force, the fractured parts may fly at high speed, potentially injuring workers. This poses a significant safety hazard during equipment use. To address these issues, the inventor proposes a high-precision torsion testing machine. Summary of the Invention

[0005] To address the problem that workpieces may be ejected and injure workers during torsion testing without appropriate protective measures, the purpose of this invention is to provide a high-precision torsion testing machine.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a high-precision torsion testing machine, comprising a worktable, a fixed frame fixedly connected to the top of the worktable near the center of one side, a sliding groove formed at the top of the worktable near the center of the other side, a sliding block slidably connected to the top of the worktable and located at the sliding groove, a graduated ring fixedly connected to the center of the fixed frame near the center of one side of the sliding block, a rotating disk rotatably connected to the center of the fixed frame and located inside the graduated ring, clamps symmetrically fixedly connected to the opposite ends of the rotating disk and the sliding block, a mounting frame fixedly connected to the back end of the worktable, guide grooves symmetrically formed at the front end of the mounting frame near the center, a protective cover slidably connected to the front end of the mounting frame and slidably connected to the guide groove, and square grooves symmetrically formed at the two sides of the protective cover near the center of the bottom.

[0007] Preferably, the mounting bracket has several limiting holes at its front end and near one side, and a square plate is fixedly connected to the side end of the protective cover near the limiting holes, with the square plate and the limiting holes being at the same level.

[0008] Preferably, the square plate is internally threaded with bolts, and the bolts are at the same level as the limiting holes. An electric cylinder is fixedly connected to the center of the top of the workbench on the side away from the fixed frame, and the output end of the electric cylinder is fixedly connected to the sliding block.

[0009] Preferably, a motor is fixedly connected to the side wall of the fixed frame, the output end of the motor passes through the fixed frame and is fixedly connected to the rotating disk, and a pointer is fixedly connected to the side end of the rotating disk near the outer ring.

[0010] Preferably, hydraulic rods are symmetrically fixedly connected to the inner wall of the clamp near the center, and the output end of the hydraulic rods is fixedly connected to a chuck body, with the two chuck bodies being symmetrically distributed.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, by starting the electric cylinder and motor, and with the cooperation between the rotating disk, the clamp, the pointer, and the scale ring, the torsional angle data of the sample can be obtained intuitively. Compared with high-precision measuring instruments, its maintenance difficulty is relatively small.

[0013] 2. In this utility model, by setting up a protective cover and cooperating with the mounting bracket, bolts and limiting holes, the experimental area is protected, thereby solving the problem that when the workpiece is subjected to torsion test, without corresponding protective measures, the workpiece may be ejected and accidentally injure the staff. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the protective cover of this utility model.

[0017] Figure 3 This is a schematic diagram of the fixing frame structure of this utility model.

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Workbench; 2. Mounting bracket; 21. Protective cover; 22. Limiting hole; 23. Square plate; 24. Bolt; 3. Fixture; 31. Rotary disc; 32. Clamp; 33. Pointer; 34. Scale ring; 35. Motor; 36. Hydraulic rod; 37. Chuck body; 4. Slide groove; 41. Sliding block; 42. Electric cylinder. Detailed Implementation

[0020] 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.

[0021] Example: Figure 1-4 As shown, this utility model provides a technical solution: a high-precision torsion testing machine, including a worktable 1, a fixed frame 3 fixedly connected to the top of the worktable 1 near the center of one side, a slide groove 4 opened at the top of the worktable 1 near the center of the other side, a sliding block 41 slidably connected to the top of the worktable 1 at the slide groove 4, a scale ring 34 fixedly connected to the center of the fixed frame 3 near the center of the sliding block 41, the scale ring 34 is made of a highly wear-resistant and corrosion-resistant metal material, and the surface is finely etched and polished. The scale accuracy needs to be selected according to actual needs to ensure accurate reading of the torsion angle. A rotating disk 31 is rotatably connected to the side of the fixed frame 3 at the center of the inner part of the scale ring 34. A clamp 32 is symmetrically fixedly connected to the opposite ends of the rotating disk 31 and the sliding block 41. The clamp 32 is used for... The test sample is held in place. A mounting bracket 2 is fixedly connected to the back end of the workbench 1. A guide groove is symmetrically opened at the front end of the mounting bracket 2 near the center. A protective cover 21 is slidably connected to the front end of the mounting bracket 2, and the protective cover 21 is slidably connected to the guide groove. The protective cover 21 is made of high-strength transparent plastic material, which has good visibility and protective performance and can effectively prevent safety accidents caused by sample breakage and splashing during the test. Square grooves are symmetrically opened at the bottom center of both sides of the protective cover 21. The square grooves on both sides of the protective cover 21 facilitate the normal operation of the fixing bracket 3 and the electric cylinder 42 after lowering. The electrical components in this application are electrically connected to their compatible power supply through wires. A suitable controller should be selected according to the actual situation to meet the control requirements. The detailed connection method is a well-known technology in this field.

[0022] The mounting bracket 2 has several limiting holes 22 at its front end and near one side.

[0023] By adopting the above technical solution, the limiting holes 22 are evenly distributed in the vertical direction, and the spacing is selected according to actual needs, and are used to limit the position of the protective cover 21 after use.

[0024] A square plate 23 is fixedly connected to the side end of the protective cover 21 near the limiting hole 22, and the square plate 23 and the limiting hole 22 are at the same level.

[0025] By adopting the above technical solution, the bolt 24 is rotatably set in the internal thread of the square plate 23, which facilitates the use of the limiting hole 22 to achieve the effect of positioning the protective cover 21.

[0026] The square plate 23 is internally threaded and rotatably connected to a bolt 24, and the bolt 24 is at the same level as the limiting hole 22.

[0027] By adopting the above technical solution, the bolt 24 is made of high-strength alloy steel and the surface is treated with anti-slip material. By tightening the bolt 24 and cooperating with the limiting hole 22, the protective cover 21 can be firmly fixed in a certain position.

[0028] An electric cylinder 42 is fixedly connected to the center of the top of the workbench 1 and the side away from the fixed frame 3. The output end of the electric cylinder 42 is fixedly connected to the sliding block 41.

[0029] By adopting the above technical solution, the output end of the electric cylinder 42 is fixedly connected to the sliding block 41. The electric cylinder 42 adopts a high-precision servo electric cylinder 42, which can accurately control the moving distance of the sliding block 41 in the slide groove 4 to meet the actual testing requirements.

[0030] A motor 35 is fixedly connected to the side wall of the fixed frame 3, and the output end of the motor 35 passes through the fixed frame 3 and is fixedly connected to the rotating disk 31.

[0031] By adopting the above technical solution, the motor 35 is a high-precision stepper motor 35, which has precise torque control and speed adjustment functions, and can be flexibly adjusted according to different test requirements.

[0032] A pointer 33 is fixedly connected to the side of the rotating disk 31 near the outer ring.

[0033] By adopting the above technical solution, the pointer 33 is made of lightweight aluminum alloy, with a sharp front end, and the pointer 33 is parallel to the scale line of the scale ring 34 to ensure that the rotation angle of the rotating disk 31 can be accurately indicated.

[0034] Hydraulic rods 36 are symmetrically fixedly connected to the inner wall of clamp 32 near the center. The output end of the hydraulic rods 36 is fixedly connected to a chuck body 37, and the two chuck bodies 37 are symmetrically distributed.

[0035] By adopting the above technical solution, the hydraulic rod 36 is driven by a high-precision hydraulic system, which can provide a stable and precisely adjustable clamping force, ensuring reliable clamping of the test sample (with the help of protective pads or anti-slip pads), and avoiding slippage during the test.

[0036] Working principle: In the initial state, the sliding block 41 is controlled by the electric cylinder 42 to slide in the groove 4 at the top of the worktable 1. The distance between the sliding block 41 and the fixed frame 3 is adjusted to facilitate the installation of parts of different lengths. The two ends of the sample are placed at the center of the two clamps 32 respectively. At the same time, the two sets of hydraulic rods 36 are started. The output end of the hydraulic rods 36 drives the clamp body 37 to move towards each other, firmly clamping the part and ensuring that the sample will not loosen during the torsion test. The motor 35 is started. The output end of the motor 35 drives the rotating disk 31 to rotate. Since the two ends of the part are clamped by the clamps 32, the rotation of the rotating disk 31 will apply a torsional force to the part, thereby realizing the torsion test of the part. During the rotation of the rotating disk 31, the pointer 33 fixedly connected to the side end of the rotating disk 31 near the outer ring will rotate with it. Then the pointer 33 cooperates with the scale ring 34. By observing the rotation angle of the pointer 33 on the scale ring 34, the torsion angle data of the sample can be obtained intuitively. Compared with high-precision measuring instruments, its maintenance difficulty is smaller.

[0037] Before testing the parts (after the parts have been placed), the operator can manually slide the protective cover 21 at the front end of the mounting frame 2 downwards. The protective cover 21 is slidably connected to the guide groove at the front end of the mounting frame 2. It can slide downwards along the guide groove and cover the test area. Then, the bolt 24 can be rotated to rotate it into one of the limiting holes 22, thereby completing the limiting effect of the protective cover 21. After the work is completed, the protective cover 21 can be slid upwards and limited, thereby achieving the protection of the test area.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high precision torsion testing machine comprising a worktable (1), characterized in that: A fixed frame (3) is fixedly connected to the top of the workbench (1) near the center of one side. A slide groove (4) is opened at the top of the workbench (1) near the center of the other side. A sliding block (41) is slidably connected to the top of the workbench (1) and located at the slide groove (4). A scale ring (34) is fixedly connected to the center of one side of the fixed frame (3) near the sliding block (41). A rotating disk (31) is rotatably connected to the side end of the fixed frame (3) and located inside the center of the scale ring (34). A clamp (32) is symmetrically fixedly connected to the opposite ends of the rotating disk (31) and the sliding block (41). The workbench (1) is fixedly connected to a mounting bracket (2) at the back end. The mounting bracket (2) has symmetrical guide grooves at the front end near the center. The mounting bracket (2) has a protective cover (21) slidably connected to the front end, and the protective cover (21) is slidably connected to the guide groove. The protective cover (21) has square grooves symmetrically opened at both ends near the bottom center.

2. The high-precision torsion testing machine as described in claim 1, characterized in that, The mounting bracket (2) has several limiting holes (22) at its front end and near one side.

3. A high precision torsion testing machine as claimed in claim 2, characterized in that A square plate (23) is fixedly connected to the side end of the protective cover (21) near the limiting hole (22), and the square plate (23) and the limiting hole (22) are at the same level.

4. A high precision torsion testing machine as claimed in claim 3, characterized in that The square plate (23) is internally threaded with a bolt (24), and the bolt (24) and the limiting hole (22) are at the same level.

5. A high precision torsion testing machine as claimed in claim 1, wherein, An electric cylinder (42) is fixedly connected to the center of the top of the workbench (1) and the side away from the fixed frame (3), and the output end of the electric cylinder (42) is fixedly connected to the sliding block (41).

6. A high precision torsion testing machine as claimed in claim 1, characterized in that A motor (35) is fixedly connected to the side wall of the fixed frame (3), and the output end of the motor (35) passes through the fixed frame (3) and is fixedly connected to the rotating disk (31).

7. A high precision torsion testing machine as claimed in claim 1, wherein, A pointer (33) is fixedly connected to the side end of the rotating disk (31) near the outer ring.

8. A high precision torsion testing machine as claimed in claim 1, characterized in that, Hydraulic rods (36) are symmetrically fixedly connected to the inner wall of the clamp (32) near the center. The output end of the hydraulic rod (36) is fixedly connected to a chuck body (37), and the two chuck bodies (37) are symmetrically distributed.

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