CN211235308U

CN211235308U - Pull rod elasticity test machine

Info

Publication number: CN211235308U
Application number: CN201922341477.7U
Authority: CN
Inventors: 刘金普; 杨斌; 杨莹杰
Original assignee: HANGZHOU HONGLI MACHINERY MANUFACTURING CO LTD
Current assignee: HANGZHOU HONGLI MACHINERY MANUFACTURING CO LTD
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-11
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a pull rod elasticity testing machine, which comprises a workbench, a clamping device, a bracket, a driving device and a detection component, the detection assembly comprises a pressure sensor and a displacement sensor, one end of the pull rod is fixed on the clamping device, the driving device drives the pressure sensor to press downwards on the other end of the pull rod, the pull rod is deformed under stress, the driving device drives the pressure sensor to move upwards, the pull rod moves upwards under the influence of elasticity, the driving device drives the pull rod to reciprocate for deformation recovery for multiple times, after the preset deformation times test, the driving device is stopped, the pull rod is taken down to detect the deformation condition of the pull rod, the pressure sensor is used for detecting the pressure value received by the pressure sensor, the displacement sensor is used for detecting the stroke of the main shaft, the stroke reflects the deformation of the pull rod, and the elastic performance of the pull rod in a load range is detected by simulating the actual use condition.

Description

Pull rod elasticity test machine

Technical Field

The utility model relates to a material test technical field especially relates to a pull rod elasticity test machine.

Technical Field

When the metal pull rod is used, the metal pull rod can bear pressure, the metal pull rod generates certain deformation under the pressure, the metal pull rod has certain elasticity within a load range, the pull rod can rebound and recover the original shape after being deformed, and irreversible deformation is generated when the working frequency of the metal pull rod exceeds a certain range, namely metal fatigue is generated. Therefore, in the production and processing process, the actual use condition of the pull rod needs to be simulated, and the elasticity of the pull rod is tested, so that the quality control is carried out on the elastic fatigue of the product.

Disclosure of Invention

In order to solve the technical problem, a pull rod elasticity testing machine is provided, and the pressure and deformation of a pull rod in actual use are subjected to simulation testing.

The utility model provides a pull rod elasticity test machine, includes workstation, clamping device, support, drive arrangement and determine module, determine module includes pressure sensor and displacement sensor, the workstation left side is equipped with clamping device, the rear side of workstation is equipped with the support, the support front end is equipped with drive arrangement, drive arrangement's main shaft lower extreme is equipped with pressure sensor, main shaft one side still is equipped with displacement sensor, pull rod one end is fixed on clamping device, the other end sets up pressure sensor's below.

Preferably, the drive means comprises a hydraulic or pneumatic cylinder.

Preferably, the clamping means comprises a hydraulic clamp.

Preferably, the clamping device comprises a base, a gasket, a jacket, a pressure rod, a pressing block and a bolt, the base is installed on the left side of the workbench, a mounting groove is formed in the base, the gasket is arranged on the mounting groove, the pressing block is arranged on the gasket and provided with a fixing groove matched with the jacket, a through hole matched with the pull rod is formed in the right end of the jacket, the pull rod is embedded into the through hole, the jacket is embedded into the fixing groove, and the bolt sequentially penetrates through the upper end of the pressing block and the upper end of the jacket and is embedded into the pull rod or pressed on the pull rod; the pressing rod is fixed at the upper end of the base.

Preferably, the utility model discloses still include the installing support, drive arrangement fixes in the installing support, the installing support is fixed the support front end, support front end right side is equipped with the backplate.

Preferably, the detection module still includes adapter sleeve, pressure cover, connecting plate and guard plate, drive arrangement's main shaft downside is equipped with the screw thread, the adapter sleeve with main shaft threaded connection, the connecting plate is installed adapter sleeve one side, displacement sensor installs on the connecting plate, pressure sensor fixes the adapter sleeve lower extreme, the pressure sensor lower extreme is fixed with the pressure cover, the guard plate is installed adapter sleeve front end and downwardly extending.

Preferably, the displacement sensor comprises a linear displacement sensor, the linear displacement sensor body is fixed at the front end of the support, a sliding sheet of the linear displacement sensor is fixed on the connecting plate, and the sliding sheet and a main shaft of the driving device are arranged in parallel.

Preferably, the detection assembly further comprises a guide plate, the guide plate is mounted on the main shaft, a downward sliding groove is formed in the rear side of the guide plate, a guide guard plate is arranged at the front end of the support, a sliding rail matched with the sliding groove is arranged on the guide guard plate, and the sliding groove is slidably mounted in the sliding rail.

Preferably, a sliding plate is arranged on the rear side of the upper end of the workbench, two sliding grooves are formed in the sliding plate, and the support is detachably fixed to the sliding grooves through bolts.

Preferably, the utility model discloses still include hydraulic means and control assembly, hydraulic means is connected with drive arrangement, control assembly with hydraulic means connects, pressure sensor and displacement sensor with the control assembly electricity is connected.

Compared with the prior art, the beneficial effects of the utility model are that: 1. one end of the pull rod is fixed on the clamping device, the driving device drives the pressure sensor to downwards press the other end of the pull rod, the pull rod is deformed under stress, the driving device drives the pressure sensor to upwards move, the pull rod upwards moves under the influence of elasticity, the driving device drives the pull rod to reciprocate for multiple deformation recovery, after the test of preset deformation times, the driving device is stopped, the pull rod is taken down to detect the deformation condition of the pull rod, the pressure sensor is used for detecting the value of the pressure received by the pressure sensor, the displacement sensor is used for detecting the stroke of the main shaft, the stroke reflects the deformation of the pull rod, and the elastic performance of the pull rod in a load range is detected by simulating the actual use condition; 2. the clamping device comprises a clamping device, a clamping sleeve, a bolt, a pressing block and a pressing rod, wherein the clamping sleeve is used for clamping the pull rod, the bolt penetrates through the upper end of the pressing block and the upper end of the clamping sleeve and is embedded into the pull rod to prevent the pull rod from moving left and right, the pressing block is fixed on the base so as to fix the pull rod on the clamping device, and the pressing rod is used for improving the supporting strength of the pressing; 3. a guard plate can be arranged on the right side of the front end of the support and is used for preventing the pull rod from popping up accidentally to cause damage to people; 4. the other end of the pull rod is arranged below the pressing sleeve, the pressing sleeve is used for applying pressure to the pull rod, and the protection plate plays a role in guiding and positioning and prevents the pull rod from deviating from the extrusion range of the pressing sleeve; 5. a sliding sheet of the linear displacement sensor is fixed on the connecting plate, the sliding sheet is arranged in parallel with a main shaft of the driving device, and the linear displacement sensor is used for converting the linear mechanical displacement of the connecting plate into an electric signal; 6. the utility model discloses a test device, including deflector, support, guide plate, slide rail, drive arrangement, guide plate, support front end, the deflector rear side is equipped with decurrent spout, the support front end is equipped with the direction backplate, be equipped with on the direction backplate with spout assorted slide rail, drive arrangement's main shaft moves along the direction of spout and slide rail, improves the suitability, improves the reliability of test.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of the clamping device;

FIG. 3 is a schematic structural view of the detection assembly;

FIG. 4 is an exploded view of the detection assembly;

FIG. 5 is a schematic structural view of the work table;

fig. 6 is a schematic structural view of the stent.

In the drawings, the reference numbers: 1-workbench, 2-pull rod, 3-clamping device, 4-bracket, 5-driving device, 6-connecting pipe, 7-hydraulic device, 8-control component, 9-displacement sensor, 10-detection component, 31-base, 32-gasket, 33-pressing block, 34-bolt, 35-jacket, 36-pressing rod, 41-sliding plate, 42-sliding groove, 43-guard plate, 44-guide guard plate, 51-hydraulic cylinder, 52-nut, 53-guide plate, 55-connecting sleeve, 56-pressure sensor, 57-pressing sleeve, 58-connecting plate, 59-guard plate and 60-mounting bracket.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

A pull rod elasticity testing machine is shown in fig. 1 to 6 and comprises a workbench 1, a clamping device 3, a support 4, a driving device 5 and a detection assembly 10, wherein the detection assembly 10 comprises a pressure sensor 56 and a displacement sensor 9, the clamping device 3 is arranged on the left side of the workbench 1, the support 4 is arranged on the rear side of the workbench, the driving device 5 is arranged at the front end of the support 4, the pressure sensor 56 is arranged at the lower end of a main shaft of the driving device 5, the displacement sensor 9 is further arranged on one side of the main shaft, one end of a pull rod 2 is fixed on the clamping device 3, and the other end of the pull rod is arranged below the pressure sensor 56. The utility model discloses a take out the detection of pull rod, including clamping device, drive arrangement, pull rod, drive arrangement, pressure sensor, drive arrangement, and drive arrangement, pull rod one end is fixed clamping device is last, drive arrangement drives pressure sensor and presses down on the pull rod other end, the deformation takes place for the pull rod atress, drive arrangement drives pressure sensor rebound, the pull rod receives elastic influence rebound, drive arrangement reciprocates and orders about the pull rod and warp the recovery many times, after presetting deformation number test, stops drive arrangement will the pull rod takes off the detection the deformation condition of pull rod, pressure sensor is used for detecting the pressure value that receives, displacement sensor is used for detecting the stroke of main shaft, the stroke has reacted the deflection of pull rod, detects the elasticity performance of pull rod in the load.

The driving device 5 may be a hydraulic cylinder 51 or an air cylinder, wherein the hydraulic cylinder 51 may be an oil cylinder.

The clamping device 5 may be a hydraulic clamp.

The clamping device 5 may also be of another structure, as shown in fig. 2: the clamping device comprises a base 31, a gasket 32, a jacket 35, a pressure rod 36, a pressing block 33 and a bolt 34, wherein the base 31 is installed on the left side of the workbench 1, an installation groove is formed in the base 31, the gasket 32 is arranged on the installation groove, the pressing block 36 is arranged on the gasket 32, a fixing groove matched with the jacket 35 is formed in the pressing block 36, a through hole matched with the pull rod 2 is formed in the right end of the jacket 35, the pull rod 2 is embedded into the through hole, the jacket 35 is embedded into the fixing groove, and the bolt sequentially penetrates through the upper end of the pressing block 33 and the upper end of the jacket 35 and is embedded into the pull rod or pressed on the pull rod; the pressing rod 36 is fixed to the upper end of the base 31 and presses on the rear side of the pressing block 33. The clamping sleeve 35 is used for clamping the pull rod 2, the bolt 34 penetrates through the upper end of the pressing block 33 and the upper end of the clamping sleeve 35 and is embedded into the pull rod 2 to prevent the pull rod 2 from moving left and right, the pressing block 33 is fixed on the base 31 to fix the pull rod on the clamping device, and the pressing rod 36 is used for improving the supporting strength of the pressing block 33.

The utility model discloses can also include installing support 60, drive arrangement 5 is fixed in installing support 60, installing support 60 is fixed support 4 front end. The right side of the front end of the support 4 can be provided with a guard plate 43, and the guard plate 43 is used for preventing the pull rod from accidentally popping out to cause damage to people.

As shown in fig. 3 and 4, the detection assembly 10 may further include a connection sleeve 55, a pressing sleeve 57, a connection plate 58 and a protection plate 59, wherein threads are provided on a lower side of the main shaft of the driving device 5, the connection sleeve 55 is in threaded connection with the main shaft, the connection plate 58 is installed on one side of the connection sleeve 55, the displacement sensor 9 is installed on the connection plate 58, the pressure sensor 56 is fixed at a lower end of the connection sleeve 55, the pressing sleeve 57 is fixed at a lower end of the pressure sensor 56, and the protection plate 59 is installed at a front end of the connection sleeve 55 and extends downward. The other end of the pull rod 2 is arranged below the pressing sleeve 57, the pressing sleeve 57 is used for applying pressure to the pull rod, and the protection plate 59 plays a role in guiding and positioning to prevent the pull rod 2 from deviating from the extrusion range of the pressing sleeve 35.

The displacement sensor 9 can adopt a linear displacement sensor, the body of the linear displacement sensor is fixed at the front end of the support 4, a slip sheet of the linear displacement sensor is fixed on the connecting plate, and the slip sheet and the main shaft of the driving device are arranged in parallel. The linear displacement sensor is used for converting the linear mechanical displacement of the connecting plate into an electric signal.

The detection assembly further comprises a guide plate 53, the guide plate 53 is installed on a main shaft of the driving device, a downward sliding groove is formed in the rear side of the guide plate 53, a guide protection plate 44 is arranged at the front end of the support, as shown in fig. 6, a sliding rail matched with the sliding groove is arranged on the guide protection plate 44, and the sliding groove is slidably embedded in the sliding rail. The main shaft of the driving device moves along the direction of the sliding groove and the sliding rail, so that the applicability and the testing reliability are improved.

The rear side of the upper end of the table 1 may be provided with a sliding plate 41, as shown in fig. 5, two sliding grooves 42 are provided on the sliding plate 41, and the bracket 4 is detachably fixed to the sliding grooves 42 by bolts. The support 4 is convenient to adjust and moves left and right, pull rods with different lengths can be measured, and the applicability is improved.

The utility model discloses still include hydraulic means 7 and control assembly 8, hydraulic means 7's inlet and liquid outlet pass through connecting pipe 6 with drive arrangement 5's liquid outlet and inlet respectively and are connected, control assembly 8 with hydraulic means 7 is connected, pressure sensor and displacement sensor with 8 electricity of control assembly are connected. The hydraulic device 7 provides power for the driving device 5, and meanwhile, a frequency adjusting and detecting device on the hydraulic device 7 is used for controlling the pull rod testing frequency. And the controller of the control assembly is used for receiving signals of the pressure sensor and the displacement sensor and controlling the working pressure, the working stroke and the working frequency of the hydraulic device.

In a specific embodiment, the upper end of the workbench is provided with a groove, so that the movable range of the pull rod is enlarged, and the pull rod is prevented from hitting the workbench; the linear displacement sensor is KTR-100mm in model; the pressing block 33 and the gasket 32 are fixed on the base through bolts; the connecting plate 58 is fixed on one side of the connecting sleeve 55 through a bolt; the front end of the protection plate 59 is provided with an installation groove, and the protection plate is installed at the front end of the connection sleeve 55 by penetrating a bolt through the installation groove; the guide plate 53 is installed at the upper end of the connecting sleeve 55 and embedded on the main shaft, a nut 52 is arranged on the upper side of the guide plate 53, the nut is screwed on the thread of the main shaft and used for clamping the guide plate 53, and the connecting sleeve 55 can be fixedly connected with the pressure sensor 56 through a bolt.

The utility model discloses can also set up temperature sensor and temperature control device, carry out the elasticity test to the pull rod under specific temperature.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A pull rod elasticity testing machine comprises a workbench and a clamping device, and is characterized by also comprising a bracket, a driving device and a detection assembly, wherein the detection assembly comprises a pressure sensor and a displacement sensor,

the automatic clamping device is characterized in that a clamping device is arranged on the left side of the workbench, a support is arranged on the rear side of the workbench, a driving device is arranged at the front end of the support, a pressure sensor is arranged at the lower end of a main shaft of the driving device, a displacement sensor is further arranged on one side of the main shaft, one end of a pull rod is fixed to the clamping device, and the other end of the pull rod is arranged below the pressure sensor.

2. The pull rod elasticity testing machine of claim 1, wherein the driving device comprises a hydraulic cylinder or an air cylinder.

3. The pull rod elasticity testing machine of claim 1, wherein the clamping device comprises a hydraulic clamp.

4. The pull rod elasticity testing machine as claimed in claim 1, wherein the clamping device comprises a base, a gasket, a jacket, a press rod, a press block and a bolt, the base is mounted on the left side of the workbench, a mounting groove is formed in the base, the gasket is arranged on the mounting groove, the press block is arranged on the gasket, a fixing groove matched with the jacket is formed in the press block, a through hole matched with the pull rod is formed in the right end of the jacket, the pull rod is embedded in the through hole, the jacket is embedded in the fixing groove, and the bolt sequentially penetrates through the upper end of the press block and the upper end of the jacket and is embedded in the pull rod or presses on the pull rod;

the pressing rod is fixed at the upper end of the base.

5. The tension bar elasticity testing machine as claimed in claim 1 or 4, further comprising a mounting bracket, wherein the driving device is fixed in the mounting bracket, the mounting bracket is fixed at the front end of the bracket, and a guard plate is arranged on the right side of the front end of the bracket.

6. The tension rod elasticity testing machine as claimed in claim 1 or 4, wherein the detection assembly further comprises a connection sleeve, a pressing sleeve, a connection plate and a protection plate, wherein the lower side of the main shaft of the driving device is provided with threads, the connection sleeve is in threaded connection with the main shaft, the connection plate is installed at one side of the connection sleeve, the displacement sensor is installed on the connection plate, the pressure sensor is fixed at the lower end of the connection sleeve, the pressing sleeve is fixed at the lower end of the pressure sensor, and the protection plate is installed at the front end of the connection sleeve and extends downwards.

7. The pull rod elasticity testing machine of claim 6, wherein the displacement sensor comprises a linear displacement sensor, the linear displacement sensor body is fixed at the front end of the support, a slide piece of the linear displacement sensor is fixed on the connecting plate, and the slide piece is arranged in parallel with the main shaft of the driving device.

8. The pull rod elasticity testing machine as claimed in claim 6, wherein the detecting assembly further comprises a guide plate, the guide plate is mounted on the main shaft, a downward sliding groove is formed in the rear side of the guide plate, a guide guard plate is arranged at the front end of the support, a sliding rail matched with the sliding groove is formed in the guide guard plate, and the sliding groove is slidably mounted in the sliding rail.

9. The tension bar elasticity testing machine as claimed in claim 1, wherein a sliding plate is provided on a rear side of an upper end of the table, the sliding plate is provided with two sliding grooves, and the bracket is detachably fixed to the sliding grooves by bolts.

10. The tension rod elasticity testing machine of claim 1, further comprising a hydraulic device and a control assembly, wherein the hydraulic device is connected with a driving device, the control assembly is connected with the hydraulic device, and the pressure sensor and the displacement sensor are electrically connected with the control assembly.