Torsion spring testing device

Abstract

The utility model relates to the field of torsional spring test, and discloses a torsional spring test device, which comprises an accommodating groove, the accommodating groove is arranged on one side of a tester, a connecting plate is arranged on the inner wall of the accommodating groove in a sliding manner, the bottom surface of the connecting plate is in threaded connection with a connecting arm, and the bottom end of the connecting arm is in threaded connection with a limiting plate. A limiting groove is formed in the bottom face of the limiting plate, a containing groove is formed in one side of the inner wall of the limiting groove, a fixing block is arranged on the inner wall of the containing groove in a sliding mode, a first threaded hole is formed in the limiting plate and communicates with the containing groove, and a threaded column is in threaded connection with the inner wall of the first threaded hole. According to the utility model, through the cooperation of the fixing block and the threaded column, the top end of the torsion spring can be limited and fixed, so that the torsion spring is more stable when a torque test is carried out on the base, and the torsion spring is prevented from falling off in the test process, thereby improving the reliability and repeatability of the test, and improving the accuracy of test data.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of torsion spring test, specifically to a torsion spring testing device. BACKGROUND

[0002] Spring is a commonly used element in industry, and is used in various products such as airplanes, warships, mobile phones and cameras. With the increasing demand for springs, the technology related to spring machines has gradually matured. At present, the application of springs is becoming more and more common, which requires higher durability and service life of springs. Only when the spring meets various indicators for use can it be used in various equipment to ensure normal operation and safe production of the equipment and avoid failures caused by insufficient performance of the spring.

[0003] The utility model discloses a torsion spring fatigue testing machine, it includes base, fixed wallboard, measuring device, computer control system, the fixed wallboard is fixed on the base, the computer control system is located on the one side of base fixed wallboard, the measuring device is located on the fixed wallboard, the measuring device includes rotating arm fixed seat, rotating arm and fixed arm, rotating arm is installed on rotating arm fixed seat, the rotating arm includes pivot and pivot fixed seat, pivot and pivot fixed seat are connected through bolt, the fixed arm includes fixed column, support connecting rod, support rod and support rod fixed seat, pivot fixed seat and support rod fixed seat are oppositely arranged.

[0004] In the above scheme, through the cooperation of the center rod and the support rod, the device can adapt to torsion springs of different inner diameters and lengths, thereby improving the test effect. However, it has the following disadvantages: this testing machine does not set a structure for limiting and fixing the torsion spring when testing the torsion spring, which makes the torsion spring prone to shaking, resulting in the torsion spring falling off the base during torque testing, thereby reducing the test reliability and repeatability. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a torsion spring testing device to solve the problem that the testing machine does not set a structure for limiting and fixing the torsion spring when testing the torsion spring, which makes the torsion spring prone to shaking, resulting in the torsion spring falling off the base during torque testing.

[0006] In order to achieve the above-mentioned utility model purposes, the utility model discloses the following technical scheme: a torsion spring testing device, including containing groove, the containing groove is set up in one side of testing machine, the inner wall of containing groove is slidably provided with connecting plate, the bottom of connecting plate is screw threaded and is connected with connecting arm, the bottom of connecting arm is screw threaded and is connected with limit board, the bottom of limit board is provided with limit groove, one side of the inner wall of limit groove is provided with placing groove, the inner wall of placing groove is slidably provided with fixed block, the first threaded hole is communicated with placing groove, the inner wall of first threaded hole is screw threaded and is connected with threaded column, one end of threaded column rotatably sets up one side of fixed block.

[0007] Preferably, the top and bottom of the fixed block are fixed with limit blocks, the top and bottom of the inner wall of the placing groove are provided with sliding grooves, and the limit blocks are slidably connected with the sliding grooves.

[0008] Preferably, the top of the testing machine is provided with a second threaded hole, the second threaded hole is communicated with the containing groove, the inner wall of the second threaded hole is screw threaded and is connected with a screw rod, the screw rod extends into the containing groove, the connecting plate is screw threaded on the outer wall of the screw rod, and the top of the screw rod is fixed with a hand wheel.

[0009] Preferably, the top and bottom of the connecting plate are fixed with piano cases, the top of the upper piano case is fixed with the top of the inner wall of the containing groove, the bottom of the lower piano case is fixed with the bottom of the inner wall of the containing groove, and the piano cases are slidably connected with the inner wall of the containing groove.

[0010] Preferably, two slide rails are fixed on the left side of the testing machine, a protective cover is slidably arranged on the left side of the testing machine, and the protective cover on the left side is connected with the sliding blocks on the two slide rails.

[0011] Preferably, an emergency button is arranged on the testing machine and is electrically connected with the testing machine.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] One, after the staff fixes the bottom end of the torsional spring on the fixed seat, the height of the connecting plate and the connecting arm can be adjusted through the adjusting device, so that the limiting plate is close to the top end of the torsional spring. At this time, the staff can twist the threaded column, so that the fixed block is retracted into the placing groove. Then the top end of the torsional spring can be placed in the limiting groove, so as to twist the threaded column again, so that the fixed block continuously approaches the torsional spring, and then the torsional spring is limited and fixed. Through the cooperation of the fixed block and the threaded column, the top end of the torsional spring can be limited and fixed, so that the torsional spring is more stable during torque test on the base, effectively preventing the torsional spring from falling off during the test process, thereby improving the test reliability and repeatability, and thereby improving the accuracy of the test data. Through the cooperation of the limiting block and the sliding groove, the fixed block can be more stable during movement, so that the fixed block can stably limit and fix the torsional spring in the limiting groove, effectively preventing the fixed block and the torsional spring from shaking, thereby improving the stability of the torsional spring test;

[0014] Two, the height of the connecting plate can be adjusted by the hand wheel, so that the limiting plate can accurately correspond to the torsional spring, so that the testing machine can flexibly test the data of the torsional spring, thereby improving the flexibility and versatility of the testing machine. The organ case can protect the circuit in the containing groove when the connecting plate moves up and down, effectively preventing external dust and other foreign matters from entering the containing groove, thereby preventing dust and other foreign matters from damaging the circuit or affecting the test precision;

[0015] Three, the protective cover can prevent the staff from accidentally contacting the moving parts, reduce the occurrence of work accidents, and thereby improve the safety of the testing machine. The emergency button can immediately cut off the power supply of the testing machine and stop the operation of the testing machine when the testing machine appears abnormity, which can prevent the testing machine from being further damaged and reduce the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the embodiment.

[0017] Figure 2 It is a split view of the embodiment.

[0018] Figure 3 It is a perspective view of the embodiment. Figure 2 It is an enlarged view of A in the embodiment.

[0019] In the figure: 1, containing groove; 2, testing machine; 3, connecting plate; 4, connecting arm; 5, limiting plate; 6, limiting groove; 7, placing groove; 8, fixed block; 9, first threaded hole; 10, threaded column; 11, limiting block; 12, sliding groove; 13, second threaded hole; 14, screw; 15, hand wheel; 16, organ case; 17, sliding rail; 18, protective cover; 19, emergency button. DETAILED DESCRIPTION

[0020] The preferred embodiments of the utility model will be described below in detail with reference to the drawings.

[0021] As Figures 1-3 shown, a torsional spring testing device, including containing groove 1, containing groove 1 is set up in the one side of testing machine 2, the inner wall of containing groove 1 is slidably provided with connecting plate 3, the bottom surface of connecting plate 3 is threadedly connected with connecting arm 4, the bottom end of connecting arm 4 is threadedly connected with limiting plate 5, the bottom surface of limiting plate 5 is provided with limiting groove 6, the inner wall of limiting groove 6 is provided with placing groove 7 on one side, the inner wall of placing groove 7 is slidably provided with fixed block 8, first threaded hole 9 is set up on limiting plate 5, first threaded hole 9 is communicated with placing groove 7, the inner wall of first threaded hole 9 is threadedly connected with threaded column 10, one end of threaded column 10 is rotatably arranged on the one side of fixed block 8, the top surface and the bottom surface of fixed block 8 are both fixed with limiting block 11, the inner wall top surface and the bottom surface of placing groove 7 are both provided with sliding groove 12, limiting block 11 is slidably connected with sliding groove 12.

[0022] In use, after the bottom end of the torsional spring is fixed on the fixed seat, the height of connecting plate 3 and connecting arm 4 can be adjusted by adjusting device, so that limiting plate 5 is close to the top end of the torsional spring, at this time, the worker can rotate threaded column 10, so that fixed block 8 is retracted into placing groove 7, then the top end of the torsional spring can be placed in limiting groove 6, so as to rotate threaded column 10 again, so that fixed block 8 continuously approaches the torsional spring, and then the torsional spring is limited and fixed; by the cooperation of fixed block 8 and threaded column 10, the top end of the torsional spring can be limited and fixed, so that the torsional spring is more stable when torque test is carried out on the base, effectively preventing the torsional spring from falling off during the test process, thereby improving the test reliability and repeatability, and further improving the accuracy of test data. By the cooperation of limiting block 11 and sliding groove 12, the movement of fixed block 8 is more stable, so that fixed block 8 can stably limit and fix the torsional spring in limiting groove 6, effectively preventing the fixed block 8 and the torsional spring from shaking, thereby improving the stability of the torsional spring test.

[0023] As Figure 1 and Figure 2 shown, the top surface of testing machine 2 is provided with second threaded hole 13, second threaded hole 13 is communicated with containing groove 1, the inner wall of second threaded hole 13 is threadedly connected with screw rod 14, screw rod 14 extends into containing groove 1, connecting plate 3 is threadedly connected on the outer wall of screw rod 14, the top end of screw rod 14 is fixed with hand wheel 15, the top surface and the bottom surface of connecting plate 3 are both fixed with piano case 16, the top surface of upper piano case 16 is fixed with the inner wall top surface of containing groove 1, the bottom surface of lower piano case 16 is fixed with the inner wall bottom surface of containing groove 1, piano case 16 is slidably connected in the inner wall of containing groove 1.

[0024] In use, the height of the connecting plate 3 can be adjusted by the hand wheel 15, so that the limiting plate 5 can correspond to the torsion spring accurately, so that the testing machine 2 can test the data of the torsion spring flexibly, thereby improving the flexibility and versatility of the testing machine 2. When the connecting plate 3 moves up and down, the circuit in the accommodating groove 1 is protected by the piano cover 16, effectively preventing external dust and other foreign matters from entering the accommodating groove 1, thereby preventing dust and other foreign matters from damaging the circuit or affecting the test precision.

[0025] As shown in Figure 1 and Figure 2 The left side of the testing machine 2 is fixed with two slide rails 17, the left side of the testing machine 2 is slidably provided with a protective cover 18, the right side of the testing machine 2 is fixed with a protective cover 18, the left protective cover 18 is connected with the sliding blocks on the two slide rails 17, the testing machine 2 is provided with an emergency button 19, and the emergency button 19 is electrically connected with the testing machine 2.

[0026] In use, the protective cover 18 can prevent the workers from accidentally contacting the moving parts, reduce the occurrence of work accidents, and improve the safety of the testing machine 2. The emergency button 19 can immediately cut off the power supply of the testing machine 2 when the testing machine 2 abnormally, stop the operation of the testing machine 2, prevent the testing machine 2 from being further damaged, and reduce the maintenance cost.

[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A torsion spring testing device comprising a housing groove (1) opened in one side of a testing machine (2), characterized in that, The inner wall of the accommodating groove (1) is slidably provided with a connecting plate (3), the bottom surface of the connecting plate (3) is threadedly connected with a connecting arm (4), the bottom end of the connecting arm (4) is threadedly connected with a limiting plate (5), the bottom surface of the limiting plate (5) is provided with a limiting groove (6), one side of the inner wall of the limiting groove (6) is provided with a placing groove (7), the inner wall of the placing groove (7) is slidably provided with a fixed block (8), a first threaded hole (9) is formed in the limiting plate (5) and communicates with the placing groove (7), and a threaded column (10) is threadedly connected with the inner wall of the first threaded hole (9), one end of the threaded column (10) is rotatably arranged on one side of the fixed block (8).

2. A torsion spring testing device as claimed in claim 1, wherein: The top surface and the bottom surface of the fixed block (8) are fixedly provided with a limiting block (11), and the inner wall top surface and the bottom surface of the placing groove (7) are provided with a sliding groove (12), and the limiting block (11) is slidably connected with the sliding groove (12).

3. The torsion spring testing device of claim 1, wherein: The top surface of the testing machine (2) is provided with a second threaded hole (13) which communicates with the accommodating groove (1), and the inner wall of the second threaded hole (13) is threadedly connected with a screw rod (14), the screw rod (14) extends into the accommodating groove (1), the connecting plate (3) is threadedly connected with the outer wall of the screw rod (14), and the top end of the screw rod (14) is fixedly provided with a hand wheel (15).

4. A torsion spring testing device as claimed in claim 3, wherein: The top surface and the bottom surface of the connecting plate (3) are fixedly provided with an organ case (16), the top surface of the upper organ case (16) is fixedly connected with the inner wall top surface of the accommodating groove (1), the bottom surface of the lower organ case (16) is fixedly connected with the inner wall bottom surface of the accommodating groove (1), and the organ case (16) is slidably connected with the inner wall of the accommodating groove (1).

5. The torsion spring testing device of claim 3, wherein: The left side of the testing machine (2) is fixedly provided with two slide rails (17), the left side of the testing machine (2) is slidably provided with a protective cover (18), the right side of the testing machine (2) is fixedly provided with a protective cover (18), and the left protective cover (18) is connected with the sliding blocks on the two slide rails (17).

6. A torsion spring testing device as claimed in claim 5, wherein: An emergency button (19) is arranged on the testing machine (2), and the emergency button (19) is electrically connected with the testing machine (2).

Images