CN112880995A

CN112880995A - Fatigue testing machine for simultaneously testing torsion spring and volute spiral spring based on vibration frequency

Info

Publication number: CN112880995A
Application number: CN202110069978.3A
Authority: CN
Inventors: 赵徐涛; 毛贺
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-06-01
Anticipated expiration: 2041-01-19
Also published as: CN112880995B

Abstract

The invention provides a fatigue testing machine for simultaneously testing a torsional spring and a volute spiral spring based on vibration frequency, which relates to the field of spring testing devices. This fatigue test machine based on vibration frequency is to torsional spring, volute spiral spring simultaneous test, it is rotatory through dialling the stick, drives striking strip and rises striking pressure detector, and the volute spiral spring is dragged through steel wire one, slider, rope simultaneously to the striking strip rises. So that the number of times of detection by the pressure detector represents the number of times of deformation of the scroll spring. The fatigue test function of the volute spiral spring is realized. Meanwhile, the second steel wire is pushed downwards in the rotating process by stirring, so that the second steel wire pulls the torsion spring. So that the value measured by the tension detector represents the deformation times of the torsion spring. The aim of performing fatigue test on the torsion spring is fulfilled. Thereby make this device can detect volute spiral spring, torsional spring simultaneously. Thereby improving the application range.

Description

Fatigue testing machine for simultaneously testing torsion spring and volute spiral spring based on vibration frequency

Technical Field

The invention relates to the technical field of spring testing devices, in particular to a fatigue testing machine for simultaneously testing a torsion spring and a volute spiral spring based on vibration frequency.

Background

The fatigue property of the spring is an important index of the quality of the spring, and the fatigue property of the spring refers to a fracture phenomenon generated after the spring is extruded and deformed, generally, cracks are generated after the metal is deformed, the cracks are small and even can be ignored sometimes, but the cracks are increased and the crack gaps are increased after the metal is deformed frequently, and finally, the spring is fatigued.

The spring fatigue testing device mainly tests the fatigue of the spring through a compression spring or an extension spring so as to obtain the fatigue characteristic of the detected spring, so that the proper spring can be correctly used in different application occasions, and the spring fatigue testing device becomes one of necessary devices of spring manufacturers and application manufacturers. When a fatigue test is performed on a spring through a spring fatigue testing machine in the prior art, a driving mechanism is usually adopted to drive the spring to perform reciprocating stretching or compressing motion in the vertical direction, and the structure has many defects, such as complex structure and poor stability. And one machine can only test one type of spring, but the types of springs are various, such as torsion springs, spiral springs and the like.

Therefore, a plurality of machines are required to be configured, and the occupied area is large. The application range of the spring testing device is small, and the fatigue characteristics of the spring in different temperature environments cannot be tested simultaneously.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a fatigue testing machine for simultaneously testing a torsion spring and a volute spiral spring based on vibration frequency, and solves the problems that the traditional spring fatigue testing machine in the background technology can only test one spring type singly and has a small application range.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a fatigue test machine based on vibration frequency is to torsional spring, volute spiral spring simultaneous test, includes the frame, fixed mounting has toughened glass cover around the frame, and frame right side fixed mounting has the singlechip, and the singlechip is used for controlling each electronic component work, be equipped with the horizontal pole in the frame, the fixed welding of horizontal pole tip and frame inner wall, the pole of horizontal pole is equipped with the fixer on one's body, and the fixer is in same axis with the frame, and the fixer is used for fixed volute spiral spring.

Be equipped with the baffle in the frame, the baffle is located the fixer below, and sliding fit has the slide on the baffle, and slide one end is fixed to be binded there is the rope, and the frame in-connection has the carry over pinch rolls, and slide one end is kept away from to the rope is walked around the carry over pinch rolls and is connected with spiral spring, the frame is equipped with the vibration subassembly outward, and vibration subassembly top is equipped with pressure detector, and the slide is kept away from rope one side and is connected with steel wire one, and steel wire one passes the frame and is connected with the vibration subassembly, and.

Preferably, the outer symmetry of frame is equipped with the locating lever, and the welding of frame inner wall has the screw thread post, and the screw thread post is used for fixed torsional spring, and locating lever one end is passed the frame and is inconsistent with the fixer through screw thread post below, and the locating lever other end passes the frame and passes screw thread post top, the frame inner wall just is located the pin joint of locating lever below and has the cylinder, and the vibration subassembly side is equipped with the tensile force detector, is equipped with the pipe for the torsional spring in the frame, and pipe one end orientation is passed and is run through the toughened glass cover, the fixed binding of tensile force detector detection face has steel wire two, and steel wire two is kept away from tensile force detector one end and is walked around.

Preferably, the vibration subassembly includes base, spout, striking strip, spring, motor and dials the stick, base and frame attach, set up vertical spout on the base, the base utilizes spout sliding fit to have the striking strip, and spout inner wall bottom is connected with the spring, the spring top can with striking strip bottom contact, base bilateral symmetry fixed mounting has the motor, and motor drive shaft is connected with the stick, and striking strip bilateral symmetry welding has the extension end, and the extension end is connected with steel wire one, dials the stick and can hold the touching with extending, dials the stick and drives the striking strip and rise repeatedly and drive the repeated deformation of volute spiral spring.

Preferably, the stirring rod tip is the arc of downwarping, and the cambered surface is towards extending the end, stirs the stick and rotates the in-process and can touch with two steel wires, thereby stirs the stick and stirs two steel wires and draw the torsional spring, makes the torsional spring deformation repeatedly.

Preferably, the fixer has two clamping pieces, a plurality of bolt, a plurality of nut to constitute, the clamping piece is in same axis with the horizontal pole, and the bolt runs through two clamping pieces, and nut threaded connection is on the bolt, and the nut distributes in the clamping piece both sides, and the nut is used for cliping the clamping piece.

Preferably, a concave block is fixedly bound at the connecting end of the rope and the volute spiral spring, the outer end of the volute spiral spring is embedded into the concave block, a screw is arranged on the concave block, and the screw thread penetrates through the concave block and the outer end of the volute spiral spring.

Preferably, the inside of the frame is divided into an upper cavity and a lower cavity by the partition plate, the lower cavity is filled with water, the heater is fixedly mounted at the bottom of the inner wall of the frame, the partition plate is provided with a slide rail, the slide plate slides back and forth in the slide rail, the partition plate is provided with a plurality of air holes, the air holes are located in the slide rail, the heater heats the water to form steam, and the steam enters the upper cavity through the air holes.

Preferably, the top of the frame is provided with a top cover, one side of the frame is fixedly provided with a thermometer, and the temperature measuring end of the thermometer extends into the frame.

(III) advantageous effects

The invention provides a fatigue testing machine for simultaneously testing a torsion spring and a volute spiral spring based on vibration frequency. The method has the following beneficial effects:

1. this fatigue test machine based on vibration frequency is to torsional spring, volute spiral spring simultaneous test, it is rotatory through dialling the stick, drives striking strip and rises striking pressure detector, and the volute spiral spring is dragged through steel wire one, slider, rope simultaneously to the striking strip rises. So that the number of times of detection by the pressure detector represents the number of times of deformation of the scroll spring. The fatigue test function of the volute spiral spring is realized. Meanwhile, the second steel wire is pushed downwards in the rotating process by stirring, so that the second steel wire pulls the torsion spring. So that the value measured by the tension detector represents the deformation times of the torsion spring. The aim of performing fatigue test on the torsion spring is fulfilled. Thereby make this device can detect volute spiral spring, torsional spring simultaneously. Thereby improving the application range.

2. This fatigue test machine based on vibration frequency is to torsional spring, spiral spring simultaneous test, through baffle, slide rail, gas pocket, slider, heater cooperation, to water heating steam, steam releases from the gas pocket for inside becomes moist. Thereby simulating the fatigue characteristics of the torsion spring and the volute spiral spring in a humid environment. Further improving the test range.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is another perspective view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is a partial structure display diagram of the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 5 at B in accordance with the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 5 at C in accordance with the present invention;

FIG. 8 is a schematic view of the separator plate structure of the present invention;

fig. 9 presents a schematic view of the rope construction according to the invention;

FIG. 10 is a schematic view of the internal structure of the present invention.

In the figure: the device comprises a frame 1, a toughened glass cover 2, a singlechip 3, a clapboard 4, a sliding rail 41, an air hole 42, a sliding plate 43, a cross bar 5, a fixer 6, a clamping piece 61, a bolt 62, a nut 63, a rope 7, a concave block 71, a screw 72, a steel wire I8, a vibrating assembly 9, a base 91, a sliding chute 92, an impact strip 93, an extension end 931, a spring 94, a motor 95, a poking bar 96, a positioning rod 10, a threaded column 11, a cylindrical column 12, a guide pipe 13, a steel wire II 14, a tension detector 15, a top cover 16, a thermometer 17, a traction roller 18, a heater 19 and a pressure detector 20.

Detailed Description

The embodiment of the invention provides a fatigue testing machine for simultaneously testing a torsion spring and a volute spiral spring based on vibration frequency, which comprises a frame 1 and toughened glass covers 2 fixedly arranged on the periphery of the frame 1 as shown in figures 1-10. The frame 1 and the toughened glass cover 2 form a spherical bin, and the volute spiral spring and the torsion spring are placed in the spherical bin for fatigue testing. The right side of the frame 1 is fixedly provided with a single chip microcomputer 3, and the single chip microcomputer 3 is used for controlling each electronic part to work. A cross rod 5 is arranged in the frame 1, and the end part of the cross rod 5 is fixedly welded with the inner wall of the frame 1. The cross bar 5 is provided with a fixer 6 on the bar body, the fixer 6 and the frame 1 are in the same axis, and the fixer 6 is used for fixing the volute spiral spring.

With reference to fig. 2, 3 and 4, a partition plate 4 is welded in the frame 1, the partition plate 4 is positioned below the fixer 6, a sliding plate 43 is slidably matched on the partition plate 4, and a rope 7 is fixedly bound at one end of the sliding plate 43. A traction roller 18 is welded in the frame 1, and one end of the rope 7 far away from the sliding plate 43 bypasses the traction roller 18 and is fixedly connected with the outer end of the volute spiral spring.

The outer fixed mounting of frame 1 has vibration subassembly 9, and vibration subassembly 9 top is equipped with pressure detector 20, and pressure detector 20 examines and welds with frame 1, and pressure detector 20 detects the face and faces vibration subassembly 9. One side of the sliding plate 43, which is far away from the rope 7, is welded with a first steel wire 8, the first steel wire 8 penetrates through the frame 1 to be connected with the vibration assembly 9, and the pressure detector 20 is used for recording the vibration times of the vibration assembly 9.

The frame 1 is outward symmetrical to be equipped with locating lever 10, and the welding of frame 1 inner wall has screw thread post 11, and screw thread post 11 is used for fixed torsional spring. The fixing mode is that the torsion spring is sleeved outside the threaded column 11, and a nut is connected to one end of the threaded column 11 in a threaded mode and prevents the torsion spring from being separated.

Referring to fig. 7, one end of the positioning rod 10 passes through the frame 1 and abuts against the fixer 6 through the lower part of the threaded column 11. The other end of the positioning rod 10 passes through the frame 1 and passes above the threaded column 11. The torsion spring is placed in the posture as shown in the figure.

A cylinder 12 is pivoted on the inner wall of the frame 1 and below the positioning rod 10, and a tension detector 15 is arranged on the side of the vibration component 9. The tension detector 15 is welded to the frame 1. A guide pipe 13 is arranged in the frame 1 relative to the torsion spring, and one end of the guide pipe 13 penetrates through the toughened glass cover 2 towards the penetrating hole 15. And sealant is coated between the guide pipe 13 and the toughened glass cover 2. The second steel wire 14 is fixedly bound on the detection surface of the tension detector 15, one end, far away from the tension detector 15, of the second steel wire 14 is fixedly bound with one end of the torsion spring by bypassing the cylinder 12 along the guide pipe 13, and the second steel wire 14 can be shifted by the vibration assembly 9.

The vibration assembly 9 includes a base 91, a slide slot 92, a strike bar 93, a spring 94, a motor 95, and a thumb stick 96. Base 91 and frame 1 welding have seted up vertical spout 92 on the base 91, and base 91 utilizes spout 92 sliding fit to have striking strip 93.

The motor 95 is symmetrically and fixedly installed on two sides of the base 91, the poking rod 96 is welded on a transmission shaft of the motor 95, and the extending end 931 is symmetrically welded on two sides of the impact strip 93. The extension end 931 is welded to the first 8 of the steel wire, the poking rod 96 can touch the extension end 931, and the poking rod 96 drives the striking bar 93 to ascend repeatedly to drive the spiral spring to deform repeatedly.

The bottom of the inner wall of the sliding groove 92 is fixedly bonded with a spring 94, and the top of the spring 94 is fixedly bonded with the bottom of the impact strip 93. The initial state spring 94 is in a compressed state, when the wrap spring 94 does not have elasticity due to fatigue deformation. The spring 94 is extended so that the striking bar 93 always abuts against the pressure detector 20, and the poke rod 96 cannot contact the extension end 931.

During operation, the motor 95 drives the poking rod 96 to rotate, the poking rod 96 rotates to be in contact with the extending end of the impact strip 93, the poking rod 96 continues to rotate to lift the impact strip 93, and the pressure detector 20 is impacted by the aid of the inertia impact strip 93. The strike bar 93 rises pulling on wire one 8, wire one 8 pulls on slider 43, slider 43 pulls on rope 7, and rope 7 pulls on the volute spiral spring.

Then, when the striking bar rises to the highest position and contacts the pressure detector 20, the spiral spring returns to drag the rope 7 due to the elasticity of the spiral spring, so that the striking bar 93 descends and the spring 94 compresses. The poke bar 96 rotates once and then contacts the extension 931 again. This is repeated.

The pressure detector 20 detects the pressure change and transmits a signal to the single chip microcomputer 3, and the single chip microcomputer 3 records the impact times of the impact strip 93 according to the data transmission times of the pressure detector 20.

When the volute spiral spring is damaged and deformed due to fatigue, it has no elasticity. At this time, the spiral spring cannot pull the first wire 8 through the rope 7 and the slider 43, so that the spring 94 cannot be compressed and the striking bar 93 descends. The impact bar 93 is always in contact with the pressure detector 20. The singlechip 3 feeds the detected times back to the tester.

Although the spring 94 is used during the test, the spring 94 is replaced by jacking to ensure that the strike bar 93 is operating properly during the test. Even if the spring 94 breaks during the test, the number of times measured is recorded by the single chip microcomputer 3. The broken spring 94 is replaced and the test is continued.

The end of the poking rod 96 is curved downwards, and the curved surface faces the extending end 931. The poking rod 96 can touch the second steel wire 14 in the rotating process, so that the cambered surface touches the second steel wire 14, and the poking rod 96 is convenient to separate from the second steel wire 14 in the rotating process. The toggle bar 96 toggles the conduit 13 to pull the torsion spring, causing the torsion spring to repeatedly deform.

When the tension detector 15 works, in an initial state, the second steel wire 14 is in a just tightened state, and the second steel wire 14 does not generate tension on the tension detector 15. When the poking rod 96 rotates to lift the impact bar 93 and then separate from the extending end 931, the poking rod 96 rotates to the other side to press the second steel wire 14 downwards, so that the second steel wire 14 pulls the torsion spring, and the connecting end of the torsion spring and the second steel wire 14 is pressed downwards. The value measured by the tension detector 15.

The poking rod 96 is pressed downwards to drag the torsion spring to deform, when the poking rod 96 is separated from the second steel wire 14, the torsion spring recovers deformation to restore the second steel wire 14, and no tension exists between the tension detector 15 and the second steel wire 14. The single chip microcomputer 3 records the number of times of the deformation of the torsion spring according to the number of times of the values measured by the tension detector 15.

When the torsion spring is damaged due to fatigue and has no elasticity due to deformation, the second steel wire 14 sags and relaxes after the poking rod 96 is pressed down for the last time. The subsequent rotation of the poke bar 96 by the pull force detector 15 cannot measure the value. At this time, the singlechip 3 records the number of times and feeds back the number to the tester.

Compared with the prior art, the fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency drives the impact strip 93 to ascend and impact the pressure detector 20 through the rotation of the poking rod 96, and the impact strip 8 ascends and simultaneously drags the volute spiral spring through the first steel wire 8, the sliding block 43 and the rope 7. So that the number of times of detection by the pressure detector 20 represents the number of times of deformation of the scroll spring. The fatigue test function of the volute spiral spring is realized. Meanwhile, the second steel wire 14 is pressed downwards in the process of poking 96 rotation, so that the second steel wire 14 drags the torsion spring. So that the value measured by the tension detector 15 represents the number of times of deformation of the torsion spring. The aim of performing fatigue test on the torsion spring is fulfilled. Thereby make this device can detect volute spiral spring, torsional spring simultaneously. Thereby improving the application range.

The fixer 6 comprises two clamping pieces 61, a plurality of bolts 62 and a plurality of nuts 63, wherein the clamping pieces 61 and the cross rod 5 are located on the same axis, the bolts 62 penetrate through the two clamping pieces 61, the nuts 63 are in threaded connection with the bolts 62, the nuts 63 are distributed on two sides of the clamping pieces 61, and the nuts 63 are used for clamping the clamping pieces 61. The spiral spring is located between the two clips 61. A certain distance is provided between the jaw 61 and the spiral spring.

A concave block 71 is fixedly bound on the connecting end of the rope 7 and the scroll spring, the outer end of the scroll spring is embedded into the concave block 71, a screw 72 is arranged on the concave block 71, and the screw 72 penetrates through the concave block 71 and the outer end of the scroll spring in a threaded manner. The inner end of the spiral spring is fixedly adhered to the rod body of the cross rod 5.

The partition plate 4 divides the interior of the frame 1 into an upper cavity and a lower cavity, the lower cavity is filled with water, the heater 19 is fixedly installed at the bottom of the inner wall of the frame 1, the partition plate 4 is provided with a slide rail 41, and the sliding plate 43 slides back and forth in the slide rail 41. The partition plate 4 is provided with a plurality of air holes 42, the air holes 42 are positioned in the slide rail 41, and the heater 19 heats water to form water vapor. The slider 43 intermittently exposes the air hole 42 during repeated movements, and water vapor enters the upper chamber through the air hole 42. The partition plate 4, the slide rail 41, the air hole 42, the slide block 43 and the heater 19 are matched to heat water to generate steam, and the steam is released from the air hole to moisten the inside. Thereby simulating the fatigue characteristics of the torsion spring and the volute spiral spring in a humid environment. Further improving the test range.

The top of the frame 1 is covered with a top cover 16, one side of the frame 1 is fixedly provided with a thermometer 17, and the temperature measuring end of the thermometer 17 extends into the frame 1.

To sum up, the fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency drives the impact bar 93 to ascend through the rotation of the poking rod 96 and the impact pressure detector 20, and the impact bar 8 ascends and simultaneously drags the volute spiral spring through the first steel wire 8, the sliding block 43 and the rope 7. So that the number of times of detection by the pressure detector 20 represents the number of times of deformation of the scroll spring. The fatigue test function of the volute spiral spring is realized. Meanwhile, the second steel wire 14 is pressed downwards in the process of poking 96 rotation, so that the second steel wire 14 drags the torsion spring. So that the value measured by the tension detector 15 represents the number of times of deformation of the torsion spring. The aim of performing fatigue test on the torsion spring is fulfilled. Thereby make this device can detect volute spiral spring, torsional spring simultaneously. Thereby improving the application range.

The partition plate 4, the slide rail 41, the air hole 42, the slider 43, and the heater 19 are engaged with each other, and water vapor is generated by heating the water, and the water vapor is released from the air hole to moisten the inside. Thereby simulating the fatigue characteristics of the torsion spring and the volute spiral spring in a humid environment. Further improving the test range.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fatigue test machine to torsional spring, volute spiral spring simultaneous test based on vibration frequency which characterized in that: the scroll spring fixing device comprises a frame (1), wherein a toughened glass cover (2) is fixedly arranged on the periphery of the frame (1), a single chip microcomputer (3) is fixedly arranged on the right side of the frame (1), the single chip microcomputer (3) is used for controlling various electronic parts to work, a cross rod (5) is arranged in the frame (1), the end part of the cross rod (5) is fixedly welded with the inner wall of the frame (1), a fixer (6) is arranged on the rod body of the cross rod (5), the fixer (6) and the frame (1) are located on the same axis, and the fixer (6) is used for fixing a;

be equipped with baffle (4) in frame (1), baffle (4) are located fixer (6) below, and sliding fit has slide (43) on baffle (4), and slide (43) one end is fixed to be binded rope (7), and frame (1) in-connection has carry over pinch rolls (18), and slide (43) one end is kept away from in rope (7) is walked around carry over pinch rolls (18) and is connected with spiral spring, frame (1) is equipped with vibration subassembly (9) outward, and vibration subassembly (9) top is equipped with pressure detector (20), and rope (7) one side is kept away from in slide (43) is connected with steel wire (8), and steel wire (8) pass frame (1) and are connected with vibration subassembly (9), and pressure detector (20) are used for taking notes vibration subassembly (9) vibration number of times.

2. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 1, wherein: the frame (1) is externally symmetrically provided with positioning rods (10), the inner wall of the frame (1) is welded with threaded columns (11), the threaded columns (11) are used for fixing a torsion spring, one end of each positioning rod (10) penetrates through the frame (1) and is in contact with a fixer (6) through the lower side of the threaded column (11), the other end of each positioning rod (10) penetrates through the frame (1) and is above the threaded column (11), the inner wall of the frame (1) is pivoted with a cylinder (12) below the corresponding positioning rod (10), the side edge of a vibration assembly (9) is provided with a tension detector (15), a guide pipe (13) is arranged in the frame (1) relative to the torsion spring, one end of the guide pipe (13) penetrates through a tempered glass cover (2) towards a binding 15, a steel wire II (14) is fixedly bound on the detection surface of the tension detector (15), one end of the steel wire II (14) far away from the tension detector, the second steel wire (14) can be shifted by the vibrating component (9).

3. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 2, wherein: the vibration component (9) comprises a base (91), a sliding groove (92), an impact strip (93), a spring (94), a motor (95) and a poking rod (96), the base (91) is connected with the frame (1), a vertical sliding groove (92) is arranged on the base (91), the base (91) is in sliding fit with an impact strip (93) by utilizing the sliding groove (92), the bottom of the inner wall of the sliding groove (92) is connected with a spring (94), spring (94) top can contact with striking strip (93) bottom, and base (91) bilateral symmetry fixed mounting has motor (95), and motor (95) transmission shaft is connected with dials stick (96), and striking strip (93) bilateral symmetry welding has extension end (931), and extension end (931) is connected with steel wire (8), dials stick (96) and can touch with extension end (931), dials stick (96) and drives striking strip (93) and rise repeatedly and drive the repeated deformation of volute spiral spring.

4. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 3, wherein: the poking rod (96) end is the arc of downwarping, and the cambered surface is towards extension end (931), and the poking rod (96) rotate the in-process and can touch with two (14) steel wires, thereby poking rod (96) and poking two (14) steel wires and dragging the torsional spring, make the torsional spring repeated deformation.

5. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 1, wherein: fixer (6) have two clamping pieces (61), a plurality of bolt (62), a plurality of nut (63) to constitute, clamping piece (61) and horizontal pole (5) are in same axis, and bolt (62) run through two clamping pieces (61), and nut (63) threaded connection is on bolt (62), and nut (63) distribute in clamping piece (61) both sides, and nut (63) are used for cliping clamping piece (61).

6. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 1, wherein: concave blocks (71) are fixedly bound on the connecting ends of the rope (7) and the volute spiral springs, the outer ends of the volute spiral springs are embedded into the concave blocks (71), screws (72) are arranged on the concave blocks (71), and the screws (72) penetrate through the concave blocks (71) and the outer ends of the volute spiral springs in a threaded mode.

7. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 1, wherein: the inner part of the frame (1) is divided into an upper cavity and a lower cavity by the partition plate (4), the lower cavity is filled with water, a heater (19) is fixedly mounted at the bottom of the inner wall of the frame (1), a sliding rail (41) is arranged on the partition plate (4), a sliding plate (43) slides back and forth in the sliding rail (41), the partition plate (4) is provided with a plurality of air holes (42), the air holes (42) are located in the sliding rail (41), the heater (19) heats the water to form steam, and the steam enters the upper cavity through the air holes (42).

8. The fatigue testing machine for simultaneously testing the torsion spring and the volute spiral spring based on the vibration frequency as claimed in claim 1, wherein: the top cover (16) is arranged at the top of the frame (1), the thermometer (17) is fixedly mounted on one side of the frame (1), and the temperature measuring end of the thermometer (17) extends into the frame (1).