CN113916643A - Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine - Google Patents

Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine Download PDF

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Publication number
CN113916643A
CN113916643A CN202111210394.XA CN202111210394A CN113916643A CN 113916643 A CN113916643 A CN 113916643A CN 202111210394 A CN202111210394 A CN 202111210394A CN 113916643 A CN113916643 A CN 113916643A
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China
Prior art keywords
elastic
arm
cantilever
elastic arm
mechanical sensor
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Pending
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CN202111210394.XA
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Chinese (zh)
Inventor
宾伟雄
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Shenzhen Try Precision Technology Co ltd
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Shenzhen Try Precision Technology Co ltd
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Priority to CN202111210394.XA priority Critical patent/CN113916643A/en
Publication of CN113916643A publication Critical patent/CN113916643A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention discloses a shockproof mechanism of a mechanical sensor and a micro-welding point strength testing machine. Compared with the prior art, the invention not only reduces the vibration of the force measuring system, but also avoids the interference of the acting force of the damping system on the inverse force measuring sensor, and effectively solves the problems of large test precision and repeatability test deviation caused by the vibration.

Description

Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine
Technical Field
The invention relates to the technical field of mechanical detection equipment, in particular to a shockproof mechanism of a mechanical sensor and a micro-welding-point strength testing machine.
Background
At present, the problem of environmental vibration generally exists in a micro-welding point strength testing machine when the micro-welding point strength testing machine is used, particularly in the environment of a high floor, and the micro-welding point strength testing machine has great influence on the precision of a small-range and small-force test (such as a test of 0.05-0.5g of tensile force). The existing damping technology of the precision sensor is as the following patent numbers: CN 102207435B (method for eliminating horizontal offset of traction testing device and traction testing device thereof) is very effective, but the damping force applied by the damping system directly acts on the free end of the sensor, and is easy to deform the sensor, so that the damping force of the damping system introduces an interference signal for precise mechanical measurement, and directly affects the accuracy of the test result. In the field of measurement ranges of 0.05-0.5 grams of force, the mechanical measurement error caused by the interference cannot be ignored. Therefore, for the force value test of micro force such as 0.05-0.5 gram force, the prior art still cannot achieve the ideal effect, the interference of the damping system is introduced while the environmental vibration is reduced, and therefore the environmental vibration interference and the interference brought by the damping system are required to be reduced or eliminated as much as possible to be applied to the force transducer, so that the precision during the test is ensured.
Disclosure of Invention
The invention mainly aims to provide a shockproof mechanism of a mechanical sensor and a micro-welding-point strength testing machine, and aims to solve the problems that in the process of testing micro force, the existing micro-welding-point strength testing machine reduces the interference of environmental vibration force, simultaneously prevents the force of a shock absorption system from directly acting on a free movable end of the mechanical sensor, and further improves the measurement accuracy of high-precision micro force.
In order to achieve the above object, the present invention provides a vibration-proof mechanism for a mechanical sensor, which includes a substrate, a damping system and a force sensor, wherein the damping system is mounted on the substrate, the damping system is used for damping the force sensor, the force sensor is fixedly mounted on a movable end of the damping system, and can be driven by the damping system to vertically move up and down relative to the substrate.
The invention further adopts the technical scheme that the damping system is a cantilever beam elastic body, the fixed end of the cantilever beam elastic body is fixedly connected with the base plate, one end of the force measuring sensor is connected with a mechanical testing tool, and the other end of the force measuring sensor is connected with the free end of the cantilever beam elastic body.
According to a further technical scheme of the present invention, the cantilever elastic body comprises a mounting bracket, a first connecting arm, a second connecting arm, a first elastic arm and a second elastic arm, wherein the mounting bracket is fixedly mounted on the substrate, the mounting bracket, the first elastic arm and the second elastic arm are all mounted on the same side of the first connecting arm, the first elastic arm is mounted on the upper end of the first connecting arm, the second elastic arm is mounted on the lower end of the first connecting arm, the first elastic arm and the second elastic arm are arranged in parallel, and a gap is formed between each of the first elastic arm and the second elastic arm and the mounting bracket; the second connecting arm is connected with the free end of the first elastic arm and the free end of the second elastic arm to construct the movable end of the cantilever beam arm.
According to a further technical scheme, the free end of the cantilever beam elastic body is connected with a magnetic induction sheet, the magnetic induction sheet is suspended in a fixed magnetic field, and the fixed magnetic field is arranged on the substrate.
The invention adopts the further technical scheme that the free end of the cantilever beam elastic body is connected with an elastic device, one end of the elastic device is fixedly connected with the substrate, and the other end of the elastic device is connected with the free end of the cantilever beam elastic body.
According to a further technical scheme, the damping system is an elastic device, one end of the elastic device is fixedly connected with the base plate, and the other end of the elastic device is connected with the force measuring sensor.
A further aspect of the present invention is that the damping system is any one of the above-described or similar anti-vibration mechanisms for the mechanical sensor.
In order to achieve the above object, the present invention further provides a micro-welding point strength testing machine, which includes the anti-vibration mechanism of the mechanical sensor.
The shockproof mechanism of the mechanical sensor has the beneficial effects that: according to the technical scheme, the damping system is arranged on the base plate, the damping system is used for damping the force transducer, the force transducer is fixedly arranged on the movable end of the damping system, and can vertically move up and down relative to the base plate under the driving of the damping system, so that the vibration of the force transducer is reduced, the phenomenon that the acting force of the damping system interferes with the backward force transducer is avoided, and the problems of high test precision and high repeatability test deviation caused by the vibration are effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an elevational view of a preferred embodiment of the anti-rattle mechanism of the mechanical sensor of the present invention;
FIG. 2 is a schematic perspective view of a preferred embodiment of the anti-vibration mechanism of the mechanical sensor of the present invention;
FIG. 3 is a schematic view of the mechanical sensor of the present invention assembled with a test tool without a base plate;
FIG. 4 is a schematic diagram of a preferred embodiment of the anti-vibration mechanism of the mechanical sensor of the present invention.
The reference numbers illustrate:
a substrate 10;
cantilever-arm elastic body 20: a mounting bracket 201; a first connecting arm 202; a second connecting arm 203; a first resilient arm 204; a second resilient arm 205;
a shock absorbing system 30;
a load cell 40;
a mechanical test tool 50.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a vibration-proof mechanism for a mechanical sensor, in which a preferred embodiment of the vibration-proof mechanism for a mechanical sensor includes a substrate 10, a damping system 30 and a load cell 40, wherein the damping system 30 is mounted on the substrate 10, the damping system 30 is used for damping the load cell 40, and the load cell 40 is fixedly mounted on a movable end of the damping system 30 and can vertically move up and down relative to the substrate 10 under the driving of the damping system 30.
The damping system 30 is a cantilever arm elastic body 20, a fixed end of the cantilever arm elastic body 20 is fixedly connected with the substrate 10, one end of the load cell 40 is connected with a mechanical testing tool 50, and the other end of the load cell is connected with a free end of the cantilever arm elastic body 20.
Specifically, as an implementation manner, in this embodiment, the cantilever arm elastic body 20 includes a mounting bracket 201, a first connecting arm 202, a second connecting arm 203, a first elastic arm 204, and a second elastic arm 205, where the mounting bracket 201 is fixedly mounted on the substrate 10, the mounting bracket 201, the first elastic arm 204, and the second elastic arm 205 are all mounted on the same side of the first connecting arm 202, the first elastic arm 204 is mounted on the upper end of the first connecting arm 202, the second elastic arm 205 is mounted on the lower end of the first connecting arm 202, the first elastic arm 204 and the second elastic arm 205 are arranged in parallel, and a gap is formed between each of the first elastic arm 204 and the second elastic arm 205 and the mounting bracket 201; the second connecting arm 203 connects the free end of the first elastic arm 204 and the free end of the second elastic arm 205 to construct the movable end of the cantilever-arm elastic body 20.
Wherein, one end of the load cell 40 is connected with the mechanical testing tool 50, and the other end is connected with the second connecting arm 203.
During mechanical testing, when the mechanical testing tool 50 drives one end of the force measuring sensor 40 to move upwards or downwards, the other end of the force measuring sensor 40 synchronously moves upwards or downwards, namely, the whole force measuring sensor 40 vertically moves upwards or downwards relative to the damping system 30, so that inclination is avoided, deformation is reduced, the phenomenon that the acting force of the damping system 30 interferes with the inverse force measuring sensor 40 is avoided, and the problem that the testing precision and the repeatability testing deviation are large due to vibration is effectively solved.
In this embodiment, the free end of the cantilever arm elastic body 20 may be connected to a magnetic induction sheet, the magnetic induction sheet is suspended in a fixed magnetic field, and the fixed magnetic field is installed on the substrate 10.
Alternatively, the free end of the cantilever arm elastic body 20 may be connected with an elastic device, such as a spring, one end of the elastic device is fixedly connected with the base plate 10, and the other end of the elastic device is connected with the free end of the cantilever arm elastic body.
In another embodiment, in this embodiment, the damping system 30 may also be an elastic device, such as a spring, one end of which is fixedly connected to the base plate 10, and the other end of which is connected to the load cell 40.
It should be noted that in other embodiments, the damping system 30 may be any one of the shock absorbing mechanisms for mechanical sensors, as described above or the like.
The shockproof mechanism of the mechanical sensor has the beneficial effects that: according to the technical scheme, the damping system is arranged on the base plate, the damping system is used for damping the force transducer, the force transducer is fixedly arranged on the movable end of the damping system, and can vertically move up and down relative to the base plate under the driving of the damping system, so that the vibration of the force transducer is reduced, the phenomenon that the acting force of the damping system interferes with the backward force transducer is avoided, and the problems of high test precision and high repeatability test deviation caused by the vibration are effectively solved.
In order to achieve the above object, the present invention further provides a micro solder joint strength testing machine, where the micro solder joint strength testing machine includes the anti-vibration mechanism of the mechanical sensor, and the structure and the working principle of the anti-vibration mechanism of the mechanical sensor have been described in detail above, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The shockproof mechanism of the mechanical sensor is characterized by comprising a base plate, a shock absorption system and a force measuring sensor, wherein the shock absorption system is arranged on the base plate and used for absorbing shock to the force measuring sensor, and the force measuring sensor is fixedly arranged on a movable end of the shock absorption system and can vertically move up and down relative to the base plate under the driving of the shock absorption system.
2. The anti-vibration mechanism of mechanical sensor as claimed in claim 1, wherein the damping system is a cantilever elastomer, a fixed end of the cantilever elastomer is fixedly connected to the base plate, one end of the load cell is connected to the mechanical testing tool, and the other end of the load cell is connected to a free end of the cantilever elastomer.
3. The mechanical sensor shock-proof mechanism according to claim 2, wherein the cantilever elastic body comprises a mounting bracket, a first connecting arm, a second connecting arm, a first elastic arm and a second elastic arm, wherein the mounting bracket is fixedly mounted on the substrate, the mounting bracket, the first elastic arm and the second elastic arm are all mounted on the same side of the first connecting arm, the first elastic arm is mounted on the upper end of the first connecting arm, the second elastic arm is mounted on the lower end of the first connecting arm, the first elastic arm and the second elastic arm are arranged in parallel, and a gap is formed between each of the first elastic arm and the second elastic arm and the mounting bracket; the second connecting arm is connected with the free end of the first elastic arm and the free end of the second elastic arm to construct the movable end of the cantilever beam arm.
4. The mechanical sensor shock-proof mechanism according to claim 2, wherein the free end of the cantilever elastic body is connected to a magnetic induction sheet, the magnetic induction sheet is suspended in a fixed magnetic field, and the fixed magnetic field is mounted on the substrate.
5. The mechanical sensor shock-proof mechanism according to claim 2, wherein the free end of the cantilever elastic body is connected to an elastic device, one end of the elastic device is fixedly connected to the base plate, and the other end of the elastic device is connected to the free end of the cantilever elastic body.
6. The mechanical sensor anti-shock mechanism according to claim 1, wherein said shock absorbing system is an elastic device, one end of said elastic device is fixedly connected to said base plate, and the other end is connected to said load cell.
7. Anti-vibration mechanism for mechanical sensors according to claim 1, characterized in that said damping system is any one of the anti-vibration mechanisms described in claims 1 to 6 or similar for said mechanical sensors.
8. A micro-solder joint strength tester, characterized in that the micro-solder joint strength tester comprises a vibration-proof mechanism of the mechanical sensor according to any one of claims 1 to 7.
CN202111210394.XA 2021-10-18 2021-10-18 Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine Pending CN113916643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111210394.XA CN113916643A (en) 2021-10-18 2021-10-18 Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111210394.XA CN113916643A (en) 2021-10-18 2021-10-18 Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine

Publications (1)

Publication Number Publication Date
CN113916643A true CN113916643A (en) 2022-01-11

Family

ID=79241266

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111210394.XA Pending CN113916643A (en) 2021-10-18 2021-10-18 Shockproof mechanism of mechanical sensor and micro-welding point strength testing machine

Country Status (1)

Country Link
CN (1) CN113916643A (en)

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