CN210690288U - An Izod Impact Tester - Google Patents

Abstract

The utility model discloses a cantilever beam impact tester, which comprises a bottom plate, a vertical plate is arranged on the bottom plate, a cross beam is installed on the vertical plate, a cantilever is rotatably installed on the cross beam, a pendulum is arranged on the cantilever, and the cross beam is adjusted by height The mechanism is connected with the vertical plate, and a clamping mechanism is arranged directly under the cantilever. The clamping mechanism includes a mounting plate fixedly mounted on the bottom plate, and a circular groove is provided on the mounting plate. The circular groove A first bevel gear is rotatably installed inside, and at least two second bevel gears uniformly arranged along the circumference of the first bevel gear are meshed and driven on the first bevel gear. The axis of the second bevel gear is horizontally arranged, so The second bevel gear is coaxially and fixedly connected with the first lead screw, the lead screw is rotatably arranged in the chute of the mounting plate, the first lead screw is provided with a first nut, and the first nut is connected upward through the connection The block is fixedly mounted with a clamping plate. The utility model has the advantages of strong versatility, simple structure and convenient operation.

Description

An Izod Impact Tester

technical field

The utility model relates to the technical field of dyeing equipment, in particular to a cantilever beam impact tester.

Background technique

The cantilever beam tester is a test equipment for measuring the impact toughness of non-metallic materials such as plastics, nylon, hard rubber, glass fiber reinforced plastics, and electrical insulating materials. Generally, plastics need to undergo a series of tests after production. One of the Izod notch impact tests is to cut a notch in the plastic sample for impact testing.

In the prior art, when the Izod impact tester is in use, the sample is fixedly clamped on the sample support by the clamps. Specimen specimens are effectively clamped, and it is extremely inconvenient to replace the jaws of the clamps, which makes it impossible for the Izod impact tester in the prior art to test specimens of different specifications simply and efficiently. Extremely inconvenient.

Utility model content

In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this patent application is: how to provide a cantilever beam impact tester with strong versatility, simple structure and convenient operation.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A cantilever beam impact tester comprises a bottom plate, a vertical plate is arranged on the bottom plate, a cross beam is installed on the vertical plate, a cantilever is rotatably installed on the cross beam, and a pendulum is arranged on the cantilever, so the The beam is connected to the vertical plate through a height adjustment mechanism, a clamping mechanism is provided directly under the cantilever, and the clamping mechanism includes a mounting plate fixedly mounted on the bottom plate, and a circular shape is arranged on the mounting plate. a groove, the axis of the circular groove coincides with the hinge point of the cantilever and the beam, a first bevel gear is rotatably installed in the circular groove, and the first bevel gear is connected to the power input mechanism , the axis of the first bevel gear is vertically arranged, the first bevel gear is meshed with at least two second bevel gears uniformly arranged along the circumference of the first bevel gear, and the axis of the second bevel gear is Horizontally arranged, the second bevel gear is coaxially and fixedly connected to the first lead screw, the lead screw is rotatably arranged in the chute of the mounting plate, the first lead screw is provided with a first nut, the The first nut is slidably installed in the chute, and the first nut is upwardly fixed with a clamping plate through the connecting block.

When in use, place the sample on the mounting plate, and the power input mechanism drives the first bevel gear to rotate, thereby driving the second bevel gear to rotate, and the second bevel gear rotates to drive the first lead screw to rotate, and the first lead screw rotates. The nut and the connecting block move horizontally. Since the first bevel gear meshes with different second bevel gears, the first lead screw rotates in the same direction relative to the center of the first bevel gear. The first nut of the first bevel gear moves horizontally close to or away from the center of the first bevel gear at the same time to realize the action of clamping or loosening the sample. After the sample is pressed, the height adjustment mechanism adjusts the relationship between the pendulum and the sample. High matching, the impact test can be completed. The utility model provides a cantilever impact tester, which can match and clamp samples of various sizes and heights, has strong versatility, saves costs and improves test efficiency.

As an optimization, the height adjustment mechanism includes a rectangular groove vertically disposed on the vertical plate, the rectangular groove is disposed facing the beam, and a second lead screw is rotatably installed in the rectangular groove, and the second lead screw is rotatably installed in the rectangular groove. The lead screw is matched with a second nut, the second nut is slidably installed in the rectangular groove, the second nut is fixedly connected with the beam, and the second lead screw passes through the upper part of the vertical plate and is connected to the vertical plate. The handwheel turns the connection.

In this way, the handwheel is rotated to drive the second lead screw to rotate, so as to complete the up and down sliding of the second nut in the rectangular groove, and realize the height adjustment of the beam and the cantilever. High accuracy and strong operability.

As an optimization, the power input mechanism is a drive motor, the drive motor is installed in the base plate, and the output shaft of the drive motor passes through the base plate and the installation plate and is coaxially connected to the first bevel gear.

In this way, the driving motor can provide stable output power for the first galloping wheel, and the degree of automation is high.

As an optimization, a blind hole is provided at one end of the connecting block facing the clamping plate, a spring is provided in the blind hole, a pressure sensor is provided between the spring and the bottom of the blind hole, and the spring is another One end is fixedly connected with the clamping plate, and one end of the clamping plate is deep into the blind hole.

In this way, after the clamping plate is in contact with the material, the spring can play a buffer role to avoid excessive impact on the material. When the pressure sensor reaches a fixed pressure value, it indicates that the clamping is stable, and the drive motor is controlled to stop.

As an optimization, the end surface of the clamping plate away from the connecting block is an arc surface.

In this way, it is convenient to clamp the round bar-shaped workpiece.

As an optimization, the end of the beam is provided with an angle dial.

In this way, the tilt angle of the steerable cantilever can be observed, which is beneficial for data recording.

As an optimization, the first lead screw is installed in the sliding groove through a first bearing, and the second lead screw is installed in the rectangular groove through a second bearing.

In this way, the first lead screw and the second lead screw can rotate smoothly.

Description of drawings

FIG. 1 is a schematic structural diagram of the cantilever beam impact tester disclosed by the utility model.

FIG. 2 is a side view of FIG. 1 .

FIG. 3 is an enlarged schematic view of part A in FIG. 2 .

FIG. 4 is a top view of the clamping mechanism of FIG. 1 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-4, a cantilever beam impact tester includes a bottom plate 1, a vertical plate 11 is vertically arranged on the bottom plate 1, a cross beam 12 is installed on the vertical plate 11, and a cross beam 12 is rotatably installed on the cross beam 12. Cantilever 13, a pendulum 14 is arranged on the cantilever 13, the beam 12 is connected to the vertical plate 11 through a height adjustment mechanism, a clamping mechanism is provided directly below the cantilever 13, and the clamping mechanism includes a fixed installation The mounting plate 15 on the bottom plate 1 is provided with a circular groove, the axis of the circular groove coincides with the hinge point of the cantilever 13 and the beam 12, the circular groove A first bevel gear 16 is rotatably installed in the groove, and the first bevel gear 16 is connected to the power input mechanism in a driving manner. The axis of the first bevel gear 16 is arranged vertically. At least two second bevel gears 17 are evenly arranged along the circumferential direction of the first bevel gear, the axes of the second bevel gears 17 are arranged horizontally, and the second bevel gears 17 are coaxially and fixedly connected with the first lead screw 18 , The first lead screw 18 is rotatably arranged in the chute 19 of the mounting plate 15 , the first lead screw 18 is provided with a first nut 2 , and the first nut 2 is slidably installed in the chute 19 Inside, the first nut 2 is fixedly installed with a clamping plate 22 upward through the connecting block 21 .

When in use, place the sample on the mounting plate, and the power input mechanism drives the first bevel gear to rotate, thereby driving the second bevel gear to rotate, and the second bevel gear rotates to drive the first lead screw to rotate, and the first lead screw rotates. The nut and the connecting block move horizontally. Since the different positions of the first bevel gear mesh with the second bevel gear respectively, all the second bevel gears rotate in the same direction, and the first nut on each first lead screw is relative to the first bevel gear. The center of the bevel gear moves horizontally toward or away at the same time to realize the action of clamping or loosening the sample. After the sample is pressed, the height adjustment mechanism adjusts the pendulum to match the height of the sample, and the impact test can be completed. . The utility model provides a cantilever impact tester, which can match and clamp samples of various sizes and heights, has strong versatility, saves costs and improves test efficiency.

Specifically, the first lead screw 18 includes four, and two adjacent first lead screws 18 are perpendicular to each other, which can clamp and stabilize the sample in multiple directions.

In this embodiment, the height adjustment mechanism includes a rectangular groove 23 vertically disposed on the vertical plate 11 , the rectangular groove 23 is disposed facing the beam 12 , and a second groove 23 is rotatably installed in the rectangular groove 23 . A lead screw 24, the second lead screw 24 is fitted with a second nut 25, the second nut 25 is slidably installed in the rectangular groove 23, and the second nut 25 is fixedly connected with the beam 12, so The second lead screw 24 passes through the top of the vertical plate 11 and is rotatably connected to the hand wheel 26 .

In this way, the handwheel is rotated to drive the second lead screw to rotate, so as to complete the up and down sliding of the second nut in the rectangular groove, and realize the height adjustment of the beam and the cantilever. High accuracy and strong operability.

In this embodiment, the power input mechanism is a drive motor 27, the drive motor 27 is installed in the base plate 1, and the output shaft of the drive motor 27 passes through the base plate 1 and the mounting plate 15 and the first A bevel gear 18 is connected in a coaxial drive.

In this way, the driving motor can provide stable output power for the first galloping wheel, and the degree of automation is high.

In this embodiment, a blind hole is provided at one end of the connecting block 21 facing the clamping plate 22 , a spring 28 is provided in the blind hole, and a pressure is provided between the spring 28 and the bottom of the blind hole Sensor 29, the other end of the spring 28 is fixedly connected with the clamping plate 22, and one end of the clamping plate 22 is deep into the blind hole.

In this way, after the clamping plate is in contact with the material, the spring can play a buffer role to avoid excessive impact on the material. When the pressure sensor reaches a fixed pressure value, it indicates that the clamping is stable, and the drive motor is controlled to stop.

Specifically, the pressure sensor 29 is an M407439 pressure sensor, which is small in size and accurate in detection.

In this embodiment, the end surface of the clamping plate 22 away from the connecting block 21 is an arc surface.

In this way, it is convenient to clamp the round bar-shaped workpiece.

In this embodiment, the end of the beam is provided with an angle dial 3 .

In this way, the tilt angle of the steerable cantilever can be observed, which is beneficial for data recording.

In this embodiment, the first lead screw 18 is installed in the chute 19 through a first bearing, and the second lead screw 24 is installed in the rectangular groove 23 through a second bearing.

In this way, the first lead screw and the second lead screw can rotate smoothly.

Specifically, it also includes a PLC controller, which is electrically connected with the drive motor and the pressure sensor to control the clamping, positioning and loosening of the clamping, and coordinate and control the cooperation between the various parts to achieve the most Excellent clamping effect.

Specifically, the model of the PLC controller is S-700, which belongs to the prior art.

Specifically, this solution specifically introduces the principle of clamping and stabilizing materials with different heights and sizes, and the principle of the cantilever beam impact test is the prior art.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. A cantilever beam impact tester is characterized by comprising a bottom plate, wherein a vertical plate is vertically arranged on the bottom plate, a cross beam is arranged on the vertical plate, a cantilever is rotatably arranged on the cross beam, a pendulum bob is arranged on the cantilever, the cross beam is connected with the vertical plate through a height adjusting mechanism, a clamping mechanism is arranged under the cantilever and comprises a mounting plate fixedly arranged on the bottom plate, a circular groove is arranged on the mounting plate, the axle center of the circular groove is superposed with the hinge point of the cantilever and the cross beam, a first bevel gear is rotatably arranged in the circular groove and is in transmission connection with a power input mechanism, the axis of the first bevel gear is vertically arranged, at least two second bevel gears are in meshing transmission and are uniformly arranged along the circumferential direction of the first bevel gear, the axis level of second bevel gear sets up, second bevel gear and the coaxial fixed connection of first lead screw, the lead screw rotates to set up in the spout of mounting panel, be provided with first nut on the first lead screw, first nut slidable mounting be in the spout, first nut upwards has the grip block through connecting block fixed mounting.

2. The cantilever beam impact tester of claim 1, wherein the height adjustment mechanism comprises a rectangular groove vertically arranged on the vertical plate, the rectangular groove is arranged opposite to the cross beam, a second lead screw is rotatably arranged in the rectangular groove, a second nut is matched on the second lead screw, the second nut is slidably arranged in the rectangular groove, the second nut is fixedly connected with the cross beam, and the second lead screw penetrates through the upper part of the vertical plate and is rotatably connected with a hand wheel.

3. The cantilever impact tester of claim 2, wherein the power input mechanism is a driving motor, the driving motor is mounted in the base plate, and an output shaft of the driving motor passes through the base plate and the mounting plate to be coaxially connected with the first bevel gear in a transmission manner.

4. The cantilever beam impact tester of claim 3, wherein the connecting block has a blind hole at one end facing the clamping plate, a spring is disposed in the blind hole, a pressure sensor is disposed between the spring and the bottom of the blind hole, the other end of the spring is fixedly connected to the clamping plate, and one end of the clamping plate extends into the blind hole.

5. The izod impact tester according to claim 4, wherein the end surface of the clamping plate away from the connecting block is an arc-shaped surface.

6. The izod impact tester according to claim 5, wherein said beam ends are provided with angular scales.

7. The cantilever beam impact tester of claim 6, wherein the first lead screw is mounted in the slide slot via a first bearing, and the second lead screw is mounted in the rectangular slot via a second bearing.

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