CN216899932U

CN216899932U - Impact force tester

Info

Publication number: CN216899932U
Application number: CN202220164580.8U
Authority: CN
Inventors: 于方方
Original assignee: Zhuhai Sunda Special Plastic Co ltd
Current assignee: Zhuhai Sunda Special Plastic Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-07-05
Anticipated expiration: 2032-01-20

Abstract

The utility model relates to the technical field of laboratory test equipment, in particular to an impact tester, which fixes a first clamping component on a first movable seat and a second clamping component on a second movable seat, the position of the first movable seat is detected by the first detection component, the position of the second movable seat is detected by the second detection component, and the data of test sample strips with different specifications are recorded by the control component, when test splines with different specifications are switched, the first moving seat can be driven by the first linear driving source and/or the second moving seat can be driven by the second linear driving source so as to move the first clamping assembly/the second clamping assembly to the corresponding positions, and then can be to the test spline direct test, need not recalibration, convenient and fast is applicable to the test spline supplied materials irregularity and can't accomplish the test spline centralized test's of same specification the condition.

Description

Impact force tester

Technical Field

The utility model relates to the technical field of laboratory test equipment, in particular to an impact force tester.

Background

The impact force tester is a common equipment for quality inspection, and is mainly used for measuring the impact toughness of the simplest beam/cantilever beam of non-metal materials such as hard plastics, fiber reinforced composites, nylon, glass fiber reinforced plastics, ceramics, cast stone, plastic electrical appliance insulating materials and the like.

The existing impact force tester usually comprises a base, a clamping block, a rack, a cantilever and a pendulum bob, the position of the clamping block on the base is manually adjusted to further adjust the position of the pendulum bob impacting a bar material, however, when the specifications of a test sample bar are more and the supplied materials of the test sample bar are irregular, the test sample bar of the same specification cannot be tested in a centralized manner, the clamping block is frequently adjusted at the moment, the test efficiency is reduced by adopting the mode, and the test sample bar of the same specification cannot be tested under the same test precision.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide the impact force tester which can quickly adjust the positions of the first clamping assembly/the second clamping assembly on the base, meet the requirements of sequentially testing a plurality of test sample strips with different specifications, and do not need to frequently adjust the clamping blocks due to the replacement of the test sample strips with different specifications.

In order to solve the problems, the technical scheme adopted by the utility model is as follows: an impact tester comprising:

the base is fixedly provided with a rack;

the first moving seat is connected with a first linear driving source, and the first linear driving source can drive the first moving seat to horizontally reciprocate on the base;

the cantilever horizontally extends from one side of the frame, and is hinged with a pendulum bob, the pendulum bob is positioned above the first movable seat, and the pendulum bob can swing back and forth to impact a test sample strip;

the first clamping assembly is fixedly arranged on the first movable seat and comprises two oppositely arranged supporting plates, and the upper ends of the supporting plates are connected with first clamping blocks;

the second clamping assembly is arranged in an area between the two support plates on the first moving seat and comprises a second moving seat and a positioning block fixedly mounted on the second moving seat, a second clamping block is arranged on one side of the positioning block, the second moving seat is connected with a second linear driving source, and the second linear driving source is used for driving the second moving seat to reciprocate relative to the first moving seat along the vertical direction;

the control assembly is arranged on the base and connected with a first detection assembly and a second detection assembly, the first detection assembly is used for detecting the distance between the first movable seat and the rack, and the second detection assembly is used for detecting the height between the second movable seat and the first movable seat.

In some embodiments, the surfaces of the supporting plate opposite to the first clamping blocks are respectively provided with a V-shaped groove, and one end of a test sample strip can be placed in the V-shaped groove and clamped by the first clamping blocks.

In some embodiments, the side of the positioning block opposite to the second clamping block is provided with an arc-shaped groove, and one end of the test spline can be placed in the arc-shaped groove and clamped by the second clamping block.

In some embodiments, the first detection assembly and the second detection assembly are both distance sensors, the first detection assembly is disposed on one side of the rack close to the first movable seat, and the second detection assembly is disposed on the first movable seat and aligned with the second movable seat upward in the vertical direction.

In some embodiments, the first linear drive source is a ball screw mechanism and the second linear drive source is a servo motor to which a screw elevator is connected.

In some embodiments, a plurality of magnetic attraction fixing pieces are further disposed on the base at positions corresponding to the first movable seat, and a magnetic attraction block matched with the magnetic attraction fixing pieces is further disposed on the lower end surface of the first movable seat.

In some embodiments, a plurality of the magnetic attraction fixing pieces are respectively arranged on the base and positioned on two sides of the first linear driving source.

In some embodiments, transparent protective covers are further arranged on two sides of the base, and the lower ends of the transparent protective covers are further connected with openable protective doors.

Compared with the prior art, the utility model has the beneficial effects that: the impact force tester fixes the first clamping component on the first movable seat, fixes the second clamping component on the second movable seat, detects the position of the first movable seat through the first detection component, detects the position of the second movable seat through the second detection component, records data of test sample strips with different specifications through the control component, and can drive the first movable seat and/or the second movable seat through the first linear driving source to further move the first clamping component/the second clamping component to corresponding positions when switching the test sample strips with different specifications, so that the test sample strips can be directly tested, recalibration is not needed, and the impact force tester is convenient and rapid, and is suitable for the condition that the test sample strips have irregular materials and can not be intensively tested by the test sample strips with the same specification.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an impact tester according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a first movable mount portion of an embodiment of the present invention;

fig. 3 is a front view of the first movable seat portion according to the embodiment of the present invention.

The reference numbers illustrate:

a base 100; a frame 101; a cantilever 102; a pendulum bob 103; a pointer 104; a transparent shield 105; a magnetically attractive mount 106;

a first movable base 201; a first linear drive source 202; a support plate 203; a first clamping block 204; a V-shaped groove 205;

a second movable base 301; a second linear drive source 302; a positioning block 303; a second clamping block 304; an arcuate slot 305;

a first detection assembly 401; a second detection component 402.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 3, an impact tester includes a base 100 and a frame 101 fixedly mounted on the base 100, the frame 101 may be vertically mounted on the base 100 by welding or screwing, a cantilever 102 horizontally extending toward the center of the base 100 is disposed at the upper end of the frame 101, a pendulum 103 is hinged on the cantilever 102, the base 100 is further provided with a first movable seat 201, the first movable seat 201 is connected with a first linear driving source 202, the first linear driving source 202 can drive the first movable seat 201 to horizontally reciprocate on the base 100, a first clamping assembly is fixedly mounted on the first movable seat 201, the first clamping assembly includes two supporting plates 203 oppositely spaced apart, the upper end of the supporting plate 203 is connected with a first clamping block 204, a test sample can be horizontally placed between the supporting plate 203 and the first clamping block 204, one end or both ends of the test sample can be clamped and fixed at the upper end of the supporting plate 203 by the first clamping block 204, the first clamping block 204 can be installed at the upper end of the supporting plate 203 in a threaded manner, and the first clamping block 204 can clamp or loosen the test spline by screwing a bolt or a screw; a second movable seat 301 is further arranged in an area, located between the two support plates 203, of the first movable seat 201, the second movable seat 301 is connected with a second linear driving source 302, the second linear driving source 302 is used for driving the second movable seat 301 to vertically move up and down, a second clamping assembly is further arranged on the second movable seat 301, the second clamping assembly comprises a positioning block 303 fixedly mounted on the second movable seat 301 and a second clamping block 304 arranged on one side of the positioning block 303, the second clamping block 304 can be mounted on one side of the positioning block 303 in a threaded connection mode, a test sample strip is vertically placed between the positioning block 303 and the second clamping block 304, and the second clamping block 304 is used for clamping or loosening the test sample strip by screwing a bolt or a screw; the impact force tester also comprises a control component, a first detection component 401 and a second detection component 402, wherein the control component can adopt the model specification which is conventional in the industry, the control component generally comprises a programmable controller, an input unit which can input control data and a display unit which can display working data, the first detection component 401 is used for detecting the distance of the first movable seat 201 relative to the machine frame 101, the second detection component 402 is used for detecting the distance of the second movable seat 301 relative to the first movable seat 201, in the embodiment, the test splines with different specifications are different in impact test point, the test splines with different specifications are clamped on the first clamping component/the second clamping component and are different from the lowest point of the pendulum bob 103, therefore, the test is carried out on the test splines with different specifications, the position or the height of the first clamping component/the second clamping component on the base 100 needs to be adjusted, the supporting plate 203 is fixedly arranged on the first moving seat 201, and the positioning block 303 is fixedly arranged on the second moving seat 301, so that the positions of the supporting plate 203/the positioning block 303 can be obtained according to the positions of the first moving seat 201/the second moving seat 301; in this embodiment, the horizontal position of the first clamping assembly on the base 100 can be adjusted, and the horizontal position and the height position of the second clamping assembly on the base 100 can be adjusted; in this embodiment, the positions of the first moving seat 201/the second moving seat 301 required by the test splines of different specifications can be recorded in advance, and when the test is performed, the selection can be performed by the control component without calibrating the positions of the supporting plate 203/the positioning block 303 relative to the base 100, so that the test is convenient and fast; specifically, the input unit may be a conventional keyboard or mouse, and the display unit may be a conventional display screen.

The specific working process of the impact force tester comprises the steps that a plurality of groups of test conditions of test sample strips with different specifications are preset in a control assembly, the test conditions are positions of a first clamping assembly and a second clamping assembly on a base 100, when a certain test sample strip needs to be tested, the control assembly can control a first driving source to control a first movable seat 201 to move/control a second driving source to control a second movable seat 301 to move through the preset test conditions, and then the first clamping assembly/the second clamping assembly are moved to corresponding positions, so that the test can be directly carried out, and recalibration is not needed. In this embodiment, the circuit/software program for moving the first/second

movable bases

201, 301 on the base 100 may adopt a conventional and known scheme in the industry.

In some embodiments, the surfaces of the supporting plate 203, which are opposite to the first clamping block 204, are respectively provided with a V-shaped groove 205, one end of a test sample strip can be placed in the V-shaped groove 205 and clamped by the first clamping block 204, and the V-shaped groove 205 has a centering function, so that the position consistency between different test sample strips and the first clamping block 204 can be ensured, and errors are reduced.

In some embodiments, the positioning block 303 and one side of the second clamping block 304 are provided with an arc-shaped groove 305, one end of the test spline can be placed in the arc-shaped groove 305 and clamped by the second clamping block 304, the bottom of the arc-shaped groove 305 can be used as a positioning reference to determine the height of the vertically placed test spline, and the operation is performed from the side to clamp or release the test spline, so as to avoid interference.

In some embodiments, the first detecting assembly 401 and the second detecting assembly 402 are both distance sensors, the first detecting assembly 401 is disposed on one side of the rack 101 close to the first moving seat 201, the second detecting assembly 402 is disposed on the first moving seat 201 and is aligned with the second moving seat 301 vertically upward, the first detecting assembly 401 can measure the horizontal position of the first moving seat 201 relative to the base 100 with reference to the rack 101, the second detecting assembly 402 can measure the height position of the second moving seat 301 relative to the base 100 with reference to the first moving seat 201, and thus can measure the accurate position of the test spline clamped on the first clamping assembly/the test spline clamped on the second clamping assembly; when the control component controls the first moving base 201/the second moving base 301 to move to the corresponding position according to the preset data, it may be required to detect that the first moving base 201/the second moving base 301 moves to the right position through the first detecting component 401/the second detecting component 402.

In some embodiments, the first linear driving source 202 may be a ball screw mechanism, the second linear driving source 302 may be a servo motor connected with a screw elevator, and the first moving base 201 performs high-precision horizontal/vertical movement through the ball screw mechanism and the second moving base 301 performs high-precision horizontal/vertical movement through the screw elevator, thereby further ensuring the precision of the test.

In some embodiments, the base 100 is further provided with a plurality of magnetic fixing members 106 at positions corresponding to the first movable base 201, the lower end surface of the first movable base 201 is further provided with magnetic blocks (not shown) matched with the magnetic fixing members 106, the magnetic fixing members 106 can be openable and closable magnetic rings controlled by the control component, the magnetic blocks can be metals with magnetic property such as iron blocks, and the like, after the first movable base 201 moves to the corresponding positions, the magnetic fixing members 106 open and adsorb the magnetic blocks, the first movable base 201 is further fixed on the base 100 through the magnetic attraction, because the pendulum 103 generates a certain acting force on the first movable base 201 when impacting a test sample strip, which may affect the precision that the first linear driving source 202 drives the first movable base 201 to move in the past, so the influence of the acting force on the first driving source is eliminated or reduced through the actions of the magnetic fixing members 106 and the magnetic blocks, ensuring that the first linear driving source 202 can accurately drive the first movable base 201 to the corresponding position even if being used for a long time; furthermore, the magnetic fixing members 106 are respectively disposed on the base 100 and located on two sides of the first linear driving source 202, so as to ensure the force balance of the first movable base 201 under the magnetic attraction effect, and further prolong the service life of the device.

In some embodiments, referring to fig. 1, transparent protective covers 105 are further disposed on two sides of the base 100, and an openable protective door is further connected to the lower end of each transparent protective cover 105, so that it is ensured that the pendulum 103 or the broken test sample strip accidentally injures a person during testing, the safety of the impact tester is improved, and the operator can open the protective door and take out the broken test sample strip after testing.

In all the above embodiments, the first clamping assembly can clamp the horizontally placed test sample strip, the second clamping assembly can clamp the vertically placed test sample strip, two different test operations can be performed, the applicability of the impact tester is improved, and when the first clamping assembly clamps the horizontally placed test sample strip, the second linear driving source 302 can drive the second movable base 301 to move downwards to avoid interference testing, so as to ensure the stability of the impact testing.

In all the above embodiments, the pendulum 103 is located above the first movable base 201, the position relationship of the first clamping assembly/the second clamping assembly relative to the lowest point of the pendulum 103 can be adjusted by the first linear driving source 202/the second linear driving source 302, so as to obtain accurate test data, and the other end of the pendulum 103 is connected to the pointer 104, and the setting of the dial is well-established in the industry, and is not described herein again.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. An impact tester, comprising:

the device comprises a base (100), wherein a rack (101) is fixedly arranged on the base (100);

the first moving seat (201) is connected with a first linear driving source (202), and the first linear driving source (202) can drive the first moving seat (201) to horizontally reciprocate on the base (100);

a cantilever (102) horizontally extending from one side of the frame (101), hinged with a pendulum (103), the pendulum (103) being located above the first movable seat (201), the pendulum (103) being reciprocally swingable to impact a test spline;

the first clamping assembly is fixedly arranged on the first moving seat (201) and comprises two opposite supporting plates (203), and the upper ends of the supporting plates (203) are connected with first clamping blocks (204);

the second clamping assembly is arranged in an area between the two support plates (203) on the first moving seat (201) and comprises a second moving seat (301) and a positioning block (303) fixedly mounted on the second moving seat (301), a second clamping block (304) is arranged on one side of the positioning block (303), the second moving seat (301) is connected with a second linear driving source (302), and the second linear driving source (302) is used for driving the second moving seat (301) to vertically reciprocate relative to the first moving seat (201);

the control assembly is arranged on the base (100) and is connected with a first detection assembly (401) and a second detection assembly (402), the first detection assembly (401) is used for detecting the distance between the first movable seat (201) and the rack (101), and the second detection assembly (402) is used for detecting the height between the second movable seat (301) and the first movable seat (201).

2. An impact tester according to claim 1, wherein the face of the supporting plate (203) opposite to the first clamping block (204) is provided with a V-shaped groove (205), and one end of a test strip can be placed in the V-shaped groove (205) and clamped by the first clamping block (204).

3. An impact tester according to claim 1, wherein the side of the positioning block (303) opposite to the second clamping block (304) is provided with an arc-shaped groove (305), and one end of a test strip can be placed in the arc-shaped groove (305) and clamped by the second clamping block (304).

4. An impact tester according to claim 1, wherein the first detecting component (401) and the second detecting component (402) are both distance sensors, the first detecting component (401) is disposed on the side of the frame (101) close to the first movable base (201), and the second detecting component (402) is disposed on the first movable base (201) and aligned with the second movable base (301) in a vertically upward direction.

5. An impact tester as claimed in claim 1, wherein said first linear drive source (202) is a ball screw mechanism and said second linear drive source (302) is a servomotor with a screw jack attached thereto.

6. The impact tester of claim 1, wherein the base (100) is further provided with a plurality of magnetic attraction fixing members (106) at positions corresponding to the first movable base (201), and the lower end surface of the first movable base (201) is further provided with magnetic attraction blocks matched with the magnetic attraction fixing members (106).

7. The impact tester of claim 6, wherein a plurality of the magnetic attraction fixtures (106) are respectively disposed on the base (100) at two sides of the first linear driving source (202).

8. The impact tester of claim 1, wherein transparent protective covers (105) are further disposed on two sides of the base (100), and a protective door capable of being opened and closed is further connected to the lower ends of the transparent protective covers (105).