CN215065863U

CN215065863U - Hinge torsional spring fatigue life test machine

Info

Publication number: CN215065863U
Application number: CN202121062634.1U
Authority: CN
Inventors: 吴建华
Original assignee: Guangdong Junshengda Intelligent Equipment Co ltd
Current assignee: Guangdong Junshengda Intelligent Equipment Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-07
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a hinge torsional spring fatigue life test machine, including the test machine main part, and be fixed in controller, drive arrangement, a plurality of testing arrangement in the test machine main part, drive arrangement, a plurality of testing arrangement respectively with controller electric connection, drive arrangement is with a plurality of testing arrangement links to each other, testing arrangement is at least including the test pivot and being located the spacing post and the pressure sensor of test pivot side, the torsional spring housing is located in the test pivot, the test pivot drives the torsional spring is in rotate between spacing post and the pressure sensor. The utility model discloses a test machine follows the movement track of torsional spring when testing the torsional spring, through the tired numerical value of pressure sensor output torsional spring pressure, makes the test result more accurate, and after the torsional spring reached the tired numerical value of settlement, the pilot lamp can send the suggestion of reporting to the police and remain the tired numerical value of pressure of torsional spring.

Description

Hinge torsional spring fatigue life test machine

Technical Field

The utility model relates to a torsional spring test equipment field, more specifically the hinge torsional spring fatigue life test machine that says so.

Background

The fatigue degree of the produced torsion springs is different due to different materials for manufacturing the torsion springs and different sizes and types of the torsion springs. In order to detect the fatigue limit of the torsion spring, the fatigue test of the produced torsion spring is generally required. The existing method generally tests the spring by extruding two ends of the spring, and the test result is not accurate because the test does not follow the running track of the torsion spring.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hinge torsional spring fatigue life test machine, the utility model discloses a test machine follows the movement track of torsional spring when testing the torsional spring to it is more accurate to make the test result.

The technical scheme is as follows:

the hinge torsional spring fatigue life testing machine comprises a testing machine main body, and a controller, a driving device and a plurality of testing devices which are fixed on the testing machine main body, wherein the driving device and the plurality of testing devices are respectively and electrically connected with the controller, the driving device is connected with the plurality of testing devices, the testing devices at least comprise a testing rotating shaft, a limiting column and a pressure sensor, the limiting column and the pressure sensor are positioned on the side edge of the testing rotating shaft, the testing rotating shaft is sleeved with the torsional spring, and the torsional spring is driven by the testing rotating shaft to rotate between the limiting column and the pressure sensor.

Furthermore, the driving device comprises a first driving mechanism and a second driving mechanism, the first driving mechanism is connected with the second driving mechanism, the second driving mechanism is respectively connected with a plurality of testing rotating shafts of the testing device, and the driving device drives the plurality of testing rotating shafts to rotate through the first driving mechanism and the second driving mechanism.

Further, first actuating mechanism includes driving piece, shaft coupling, eccentric adjusting part and drive assembly, the driving piece pass through the shaft coupling with eccentric adjusting part links to each other, drive assembly respectively with eccentric adjusting part and second actuating mechanism link to each other, the driving piece passes through eccentric adjusting part and drive assembly and drives second actuating mechanism removes.

Furthermore, the eccentric adjusting assembly comprises an eccentric mounting seat and an eccentric block, the driving piece is connected with the eccentric mounting seat, the eccentric block is fixed on the eccentric mounting seat, and the transmission assembly is connected with the eccentric block.

Furthermore, the eccentric adjusting assembly further comprises an eccentric adjusting block and an adjusting screw, the eccentric adjusting block is fixed on one side of the eccentric mounting seat, the adjusting screw is fixed on the eccentric adjusting block, and the adjusting screw is movably connected with the eccentric block; the eccentric mounting seat is provided with a limiting hole, the eccentric block is provided with a limiting groove, and the eccentric block is fixed on the eccentric mounting seat through the limiting hole and the limiting groove.

Furthermore, the transmission assembly comprises a transmission screw and two fisheye joints, the two fisheye joints are respectively connected with two ends of the transmission screw, and the two fisheye joints are respectively connected with the eccentric adjusting assembly and the second driving mechanism.

Furthermore, the second driving mechanism comprises a first moving assembly, a second moving assembly and a linkage plate, the second moving assembly is connected with the first moving assembly, and the moving direction of the first moving assembly is perpendicular to that of the second moving assembly; the linkage plate is connected with the second moving assembly, and the plurality of testing devices are respectively connected with the linkage plate.

Further, the testing device comprises a swing plate and a swing assembly, the swing plate is connected with the driving device, the swing assembly is connected with the swing plate, and the testing rotating shaft and the limiting column are connected with the swing assembly.

Furthermore, the testing device further comprises a sensor mounting seat and a spring cover plate, the pressure sensor is fixed on the sensor mounting seat, one end of the spring cover plate is connected with the pressure sensor, and the other end of the spring cover plate is connected with the top of the testing rotating shaft.

Furthermore, a plurality of displays, a plurality of digital display meters, a plurality of indicator lights and a plurality of control keys are arranged on the test machine main body, and the plurality of displays, the plurality of digital display meters, the plurality of indicator lights and the plurality of control keys are respectively and electrically connected with the controller.

The advantages or principles of the invention are explained below:

1. when the tester is used for testing, firstly, a torsion spring to be tested is sleeved on a testing rotating shaft, then the testing rotating shaft is driven to rotate through a driving device, and the testing rotating shaft drives the torsion spring to rotate between a limiting column and a pressure sensor. The torsion spring is contacted with the pressure sensor in the rotating process, and the torsion of the torsion spring is tested through the pressure sensor. The utility model discloses a test machine is when testing the torsional spring, follows the movement track of torsional spring and tests, and the order test result is more accurate.

2. The testing machine main body is provided with a plurality of testing devices, and a plurality of torsional springs can be tested simultaneously through the plurality of testing devices, so that the testing efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a hinge torsion spring fatigue life testing machine;

FIG. 2 is another schematic structural diagram of the hinge torsion spring fatigue life tester;

FIG. 3 is a first schematic view of the combination of the driving device and the testing device;

FIG. 4 is a second schematic view of the combination of the driving device and the testing device;

FIG. 5 is a third schematic view of the combination of the driving device and the testing device;

FIG. 6 is an exploded view of the eccentric adjustment assembly;

FIG. 7 is an exploded view of the swing plate and swing assembly;

description of reference numerals:

10. a tester body; 20. a drive device; 30. a testing device; 31. testing the rotating shaft; 32. a limiting column; 33. a pressure sensor; 21. a first drive mechanism; 22. a second drive mechanism; 211. a drive member; 212. a coupling; 213. an eccentric adjustment assembly; 214. a transmission assembly; 215. a motor mounting seat; 2131. an eccentric mounting seat; 2132. an eccentric block; 2133. an eccentric adjusting block; 2134. adjusting screws; 2135. a limiting hole; 2136. a limiting groove; 2137. a graduated scale; 2141. a drive screw; 2142. a fisheye joint; 221. a first moving assembly; 222. a second moving assembly; 223. a linkage plate; 2211. a first slide rail; 2212. a first slider; 2221. a second slide rail; 2222. a second slider; 224. a cam deflector rod; 225. a proximity switch; 40. mounting the plate assembly; 41. installing a side plate; 42. installing an upper plate; 43. mounting a middle plate; 34. a swinging plate; 35. a swing assembly; 351. a first swing block; 352. a second swing block; 353. a first mandrel; 354. assembling and disassembling the plate; 355. a second mandrel; 356. a spring washer; 357. a sensor mount; 358. a spring cover plate; 359. an angle scale plate; 50. a display; 60. a digital display meter; 70. an indicator light; 80. and (6) control keys.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in fig. 1 and 2, the present embodiment discloses a hinge torsion spring fatigue life testing machine, which includes a testing machine main body 10, and a controller, a driving device 20 and a plurality of testing devices 30 fixed on the testing machine main body 10. Preferably, eight test devices 30 are provided on the tester body 10, and eight torsion springs can be tested at the same time. The driving device 20 and the plurality of testing devices 30 are electrically connected to the controller, respectively, the driving device 20 is connected to the eight testing devices 30, and the eight testing devices 30 are driven by the driving device 20 at the same time.

In order to realize testing the torsion spring, as shown in fig. 5, the testing device 30 at least comprises a testing rotating shaft 31, and a limiting column 32 and a pressure sensor 33 which are positioned at the side edge of the testing rotating shaft 31, the torsion spring is sleeved on the testing rotating shaft 31, and the testing rotating shaft 31 drives the torsion spring to rotate between the limiting column 32 and the pressure sensor 33.

It should be noted that: the controller is the prior art, a common PLC control system is adopted, and the control method and the control mode of the controller are both the prior art.

When the tester is used for testing, firstly, a torsion spring to be tested is sleeved on the testing rotating shaft 31, then the driving device 20 drives the testing rotating shaft 31 to rotate, and the testing rotating shaft 31 drives the torsion spring to rotate between the limiting column 32 and the pressure sensor 33. The torsion spring is contacted with the pressure sensor 33 in the rotating process, the torsion of the torsion spring is tested through the pressure sensor 33, and the pressure fatigue value of the torsion spring is output through the pressure sensor. When the testing machine of the embodiment is used for testing the torsion spring, the test is carried out according to the motion track of the torsion spring, so that the test result is more accurate.

In order to drive the testing rotating shaft 31, as shown in fig. 4, the driving device 20 includes a first driving mechanism 21 and a second driving mechanism 22, the first driving mechanism 21 is connected to the second driving mechanism 22, and the first driving mechanism 21 drives the second driving mechanism 22 to move. The second driving mechanism 22 is respectively connected to the plurality of testing rotating shafts 31 of the testing device 30, and the driving device 20 drives the plurality of testing rotating shafts 31 to rotate through the first driving mechanism 21 and the second driving mechanism 22.

In order to drive the second driving mechanism 22 to move, the first driving mechanism 21 includes a driving member 211, a coupling 212, an eccentric adjustment assembly 213, and a transmission assembly 214. The driving member 211 is connected to the eccentric adjusting assembly 213 through a coupler 212, the transmission assembly 214 is connected to the eccentric adjusting assembly 213 and the second driving mechanism 22, and the driving member 211 drives the second driving mechanism 22 to move through the eccentric adjusting assembly 213 and the transmission assembly 214. Preferably, the driving member 211 is a driving motor, and the driving member 211 is fixed on the testing machine main body 10 by a motor mounting seat 215.

The eccentric adjusting assembly 213 comprises an eccentric mounting seat 2131 and an eccentric block 2132, the driving element 211 is connected with the eccentric mounting seat 2131, the eccentric block 2132 is fixed on the eccentric mounting seat 2131, and the transmission assembly 214 is connected with the eccentric block 2132. When the driving element 211 operates, the eccentric mounting seat 2131 is driven to rotate, and the eccentric mounting seat 2131 drives the eccentric block 2132 to rotate, so as to drive the transmission assembly 214 to swing.

The present embodiment can adjust the swing amplitude of the transmission assembly 214 by adjusting the position of the eccentric mass 2132 on the eccentric mounting seat 2131. To achieve adjustment of eccentric mass 2132 on eccentric mount 2131, eccentric adjustment assembly 213 further includes eccentric adjustment block 2133 and adjustment screw 2134. The eccentric adjusting block 2133 is fixed on one side of the eccentric mounting seat 2131, the adjusting screw 2134 is fixed on the eccentric adjusting block 2133, and the adjusting screw 2134 is movably connected with the eccentric block 2132. When the position of the eccentric block 2132 needs to be adjusted, the adjusting screw 2134 can be screwed, and the adjusting screw 2134 can drive the eccentric block 2132 to move on the eccentric mounting seat 2131.

As shown in fig. 6, in order to limit the movement of the eccentric block 2132 on the eccentric mount 2131, a limit hole 2135 is provided in the eccentric mount 2131, a limit groove 2136 is provided in the eccentric block 2132, and the eccentric block 2132 is fixed to the eccentric mount 2131 by driving a fastener into the limit groove 2136 and the limit hole 2135. When the eccentric block 2132 moves, the movement of the eccentric block 2132 is limited by the limiting groove 2136 and the fastener. Preferably, the fastener is a bolt or a screw.

In order to accurately control the moving distance of the eccentric block 2132 on the eccentric adjusting seat, a graduated scale 2137 is further arranged on the eccentric mounting seat 2131. The scale 2137 is positioned on one side of the eccentric block 2132, and the distance of movement of the eccentric block 2132 is controlled by referring to the scale 2137.

As shown in fig. 5, the transmission assembly 214 of the present embodiment includes a transmission screw 2141 and two fisheye joints 2142, the two fisheye joints 2142 are respectively connected to two ends of the transmission screw 2141, and the two fisheye joints 2142 are respectively connected to the eccentric adjustment assembly 213 and the second driving mechanism 22.

As shown in fig. 3, the second driving mechanism 22 of the present embodiment includes a first moving assembly 221, a second moving assembly 222 and a linkage plate 223, the second moving assembly 222 is connected to the first moving assembly 221, and the moving direction of the first moving assembly 221 is perpendicular to the moving direction of the second moving assembly 222; the linkage plate 223 is connected to the second moving assembly 222. The testing rotating shafts 31 of the plurality of testing devices 30 are respectively connected with the linkage plate 223, and the plurality of testing rotating shafts 31 are driven to rotate through the linkage plate 223.

Further, as shown in fig. 4, the first moving assembly 221 includes a first slide rail 2211 and a first slider 2212 disposed on the first slide rail 2211, and the first slider 2212 can move left and right on the first slide rail 2211. The second moving assembly 222 includes a second slide rail 2221 and a second slider 2222 disposed on the second slide rail 2221, and the second slider 2222 can move back and forth on the second slide rail 2221. The second slide rail 2221 is connected to the first slide block 2212, the cam shift lever 224 is fixed to the second slide rail 2221, the transmission assembly 214 is connected to the cam shift lever 224, and the cam shift lever 224 is connected to the linkage plate 223.

In order to control and monitor the movement of the second driving mechanism 22, a proximity switch 225 is provided at a side of the second driving mechanism 22.

The test device 30 of the present embodiment is fixed to the test machine main body 10, and in order to fix the test device 30, a mounting plate assembly 40 is fixed to the test machine main body 10, and the test device 30 is fixed to the test machine main body 10 by the mounting plate assembly 40.

The mounting plate assembly 40 includes two mounting side plates 41, a mounting upper plate 42 and a mounting middle plate 43, the two mounting side plates 41 are oppositely disposed on the testing machine main body 10, the mounting upper plate 42 is located above the mounting middle plate 43, and two ends of the mounting upper plate 42 and the mounting middle plate 43 are respectively connected to the two mounting side plates 41. A space is provided between the mounting upper plate 42 and the mounting middle plate 43. The plurality of test devices 30 are spaced apart in the longitudinal direction of the mounting upper plate 42.

In order to test the torsion spring, the testing device 30 includes a swing plate 34 and a swing assembly 35. Wherein, one end of the swing plate 34 is connected with the linkage plate 223, and the other end of the swing plate 34 is connected with the swing component 35. Further, as shown in fig. 7, the swing assembly 35 includes a first swing block 351 and a second swing block 352, the second swing block 352 is disposed directly above the first swing block 351, and an upper surface of the first swing block 351 is attached to a lower surface of the second swing block 352.

The first swing block 351 is provided at the bottom middle portion thereof with a first spindle 353, and the bottom of the first spindle 353 is connected to the swing plate through a bearing. The swinging plate is provided with a loading and unloading plate 354, the loading and unloading plate 354 is fixedly connected with the swinging plate, the bottom of the first spindle 353 penetrates through the loading and unloading plate 354 to be connected with the swinging plate, and the first spindle 353 is further fixed with the swinging plate through the loading and unloading plate 354. Swing plate and mounting plate 354 is located between mounting middle plate 43 and mounting upper plate 42.

The second swing block 352 has a second spindle 355 provided at the bottom center portion thereof, and the bottom portion of the second spindle 355 is inserted into the first swing block 351 to connect the second swing block 352 to the first swing block 351. The limit post 32 and the testing rotating shaft 31 are fixed on the second swinging block 352, and a spring washer 356 is sleeved on at least the outer side of the testing rotating shaft 31. After the torsion spring is sleeved on the testing rotating shaft 31, the torsion spring is positioned above the spring washer 356.

The testing device 30 further includes a sensor mounting seat 357 and a spring cover 358, and the pressure sensor 33 is fixed on the sensor mounting seat 357. One end of the spring cover plate 358 is connected with the pressure sensor 33 through a screw or the like, the other end of the spring cover plate 358 is rotatably connected with the top of the test spindle 31, and a torsion spring is fixed between the spring cover plate 358 and the spring washer 356 through the spring cover plate 358. Before and after the test of the torsion spring, the sleeve and the disassembly of the torsion spring are completed by disassembling the spring cover plate 358.

The testing device 30 further includes an angle calibration plate 359, the angle calibration plate 359 is located on a side surface of the first swinging block 351, and the angle of rotation of the first swinging block 351, and thus the rotation angle of the torsion spring, can be known through the angle calibration plate 359.

Before the testing machine is operated, the torsion spring is firstly sleeved on the testing rotating shaft 31, and then the torsion spring is fixed between the spring cover plate 358 and the spring washer 356 through the spring cover plate 358. After the testing machine is started, the driving component 211 drives the eccentric adjusting component to rotate through the coupling 212, and the eccentric adjusting component 213 drives the second driving mechanism 22 to move through the transmission component 214 during the rotation process. The second driving mechanism 22 drives the linkage plate 223 to swing back and forth, the linkage plate 223 drives the swing plate 34 to swing, and then drives the first swing block 351 and the second swing block 352 to swing, and finally drives the torsion spring to rotate, so that the fatigue test of the torsion spring is realized.

Furthermore, the tester main body 10 is further provided with a plurality of displays 50, a plurality of digital display tables 60, a plurality of indicator lamps 70, and a plurality of control keys 80, and the plurality of displays 50, the plurality of digital display tables 60, the plurality of indicator lamps 70, and the plurality of control keys 80 are electrically connected to the controller, respectively. The plurality of displays 50 are used for displaying the torsion force of the torsion spring, and the plurality of digital display meters 60 are used for displaying the test times of the torsion spring.

Before the testing machine of the embodiment tests the torsion spring, the fatigue value of the torsion spring, the rotation angle of the torsion spring, the testing times of the torsion spring and the like can be set through the controller. After the test is finished, whether the torsional spring can meet the use requirement or not is checked through the fatigue value of the torsional spring. Wherein, the torsion value range of the torsion spring is set to 0-100N, the rotating speed of the test rotating shaft 31 can be set to 20 times/minute, and the rotating angle is less than 90 degrees. When the torsion spring reaches the set fatigue value, the alarm prompt is realized through the indicator lamp 70 on the display 50, and the fatigue pressure value is kept.

The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make other modifications, replacements or combinations in various forms, all falling within the protection scope of the present invention.

Claims

1. The hinge torsion spring fatigue life testing machine is characterized by comprising a testing machine main body, and a controller, a driving device and a plurality of testing devices which are fixed on the testing machine main body, wherein the driving device and the plurality of testing devices are respectively and electrically connected with the controller, the driving device is connected with the plurality of testing devices, the testing devices at least comprise a testing rotating shaft, a limiting column and a pressure sensor, the limiting column and the pressure sensor are positioned on the side edge of the testing rotating shaft, the testing rotating shaft is sleeved with the torsion spring, and the torsion spring is driven by the testing rotating shaft to rotate between the limiting column and the pressure sensor.

2. The hinge torsion spring fatigue life testing machine of claim 1, wherein the driving device comprises a first driving mechanism and a second driving mechanism, the first driving mechanism is connected to the second driving mechanism, the second driving mechanism is respectively connected to the testing rotating shafts of the testing devices, and the driving device drives the testing rotating shafts to rotate through the first driving mechanism and the second driving mechanism.

3. The hinge torsion spring fatigue life testing machine of claim 2, wherein the first driving mechanism comprises a driving member, a coupling, an eccentric adjusting assembly and a transmission assembly, the driving member is connected to the eccentric adjusting assembly through the coupling, the transmission assembly is respectively connected to the eccentric adjusting assembly and the second driving mechanism, and the driving member drives the second driving mechanism to move through the eccentric adjusting assembly and the transmission assembly.

4. The hinge torsion spring fatigue life testing machine of claim 3, wherein the eccentric adjustment assembly comprises an eccentric mounting seat and an eccentric block, the driving member is connected with the eccentric mounting seat, the eccentric block is fixed on the eccentric mounting seat, and the transmission assembly is connected with the eccentric block.

5. The hinge torsion spring fatigue life testing machine of claim 4, wherein the eccentric adjustment assembly further comprises an eccentric adjustment block and an adjustment screw, the eccentric adjustment block is fixed on one side of the eccentric mounting seat, the adjustment screw is fixed on the eccentric adjustment block, and the adjustment screw is movably connected with the eccentric block; the eccentric mounting seat is provided with a limiting hole, the eccentric block is provided with a limiting groove, and the eccentric block is fixed on the eccentric mounting seat through the limiting hole and the limiting groove.

6. The hinge torsion spring fatigue life testing machine of claim 3, wherein the transmission assembly comprises a transmission screw and two fisheye joints, the two fisheye joints are respectively connected with two ends of the transmission screw, and the two fisheye joints are respectively connected with the eccentric adjustment assembly and the second driving mechanism.

7. The hinge torsion spring fatigue life testing machine according to any one of claims 2 to 6, wherein the second driving mechanism includes a first moving component, a second moving component and a linkage plate, the second moving component is connected to the first moving component, and the moving direction of the first moving component is perpendicular to the moving direction of the second moving component; the linkage plate is connected with the second moving assembly, and the plurality of testing devices are respectively connected with the linkage plate.

8. The hinge torsion spring fatigue life testing machine according to any one of claims 1 to 6, wherein the testing device includes a swing plate and a swing assembly, the swing plate is connected to the driving device, the swing assembly is connected to the swing plate, and the testing rotating shaft and the limit post are both connected to the swing assembly.

9. The hinge torsion spring fatigue life testing machine of claim 8, wherein the testing device further comprises a sensor mounting seat and a spring cover plate, the pressure sensor is fixed on the sensor mounting seat, one end of the spring cover plate is connected with the pressure sensor, and the other end of the spring cover plate is connected with the top of the testing rotating shaft.

10. The hinge torsion spring fatigue life testing machine of claim 1, wherein the testing machine main body is further provided with a plurality of displays, a plurality of digital display gauges, a plurality of indicator lights and a plurality of control keys, and the plurality of displays, the plurality of digital display gauges, the plurality of indicator lights and the plurality of control keys are respectively electrically connected with the controller.