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CN-224203334-U - Comprehensive performance inspection device for handheld electric tool

CN224203334UCN 224203334 UCN224203334 UCN 224203334UCN-224203334-U

Abstract

The utility model belongs to the field of hand-held electric tool testing, and provides a hand-held electric tool comprehensive performance testing device which comprises a base, wherein an idle power measuring assembly and an insulation resistance measuring assembly are arranged on the base, the idle power measuring assembly comprises a detecting wheel capable of moving along a Z axis, a measuring unit is arranged on the detecting wheel, the measuring unit is connected with a controller, a plurality of fixing clamps for clamping electric tools are arranged on the outer side of a lifting bracket on the base, the insulation resistance measuring assembly comprises two conductive sponges which are oppositely arranged up and down, the conductive cloth is pushed by an inflatable air bag to fully cover a tool shell, the measuring contact area is improved, the test omission rate of insulation resistance testing is reduced, the device is applicable to electric tools of different types, handles of the electric tools are fixed by two clamp plates, and the electric tools of different sizes are clamped in a self-adaptive mode by inflating the filled air bag.

Inventors

  • JIANG MINGZHI
  • HUANG JUNYI
  • FENG ZICONG
  • LIU YUN
  • LEI JUNXIANG
  • CHEN XIANG

Assignees

  • 江西大唐国际新余第二发电有限责任公司

Dates

Publication Date
20260505
Application Date
20250515

Claims (8)

  1. 1. The comprehensive performance testing device for the handheld electric tool comprises a base (1) and is characterized in that an idle power measuring assembly (2) and an insulation resistance measuring assembly (3) are arranged on the base (1); The no-load power measurement assembly (2) comprises a detection wheel (203) capable of moving along a Z axis, a measurement unit (204) is arranged on the detection wheel (203), the measurement unit (204) is connected with a controller (4) and is used for measuring insulation resistance, no-load rotating speed and no-load current, and a plurality of fixing clamps (7) for clamping an electric tool are arranged on the outer side of a lifting support (201) on the base (1); the insulation resistance measuring assembly (3) comprises two conductive sponges (303) which are arranged up and down oppositely and are used for wrapping the shell of the electric tool.
  2. 2. The device for testing the comprehensive performance of the hand-held electric tool according to claim 1, wherein the idle power measuring assembly (2) further comprises a supporting plate (202) for mounting the measuring unit and the detecting wheel (203), and a lifting bracket (201) is further arranged on the supporting plate (202) and used for driving the supporting plate (202) to move along the Z axis.
  3. 3. The device for testing the comprehensive performance of the handheld electric tool according to claim 1, wherein the insulation resistance measuring assembly (3) further comprises a box body (301) arranged on the base (1), an upper cover (302) is hinged to the box body (301), two conductive sponges (303) are respectively arranged on the inner sides of the box body (301) and the upper cover (302), and a notch groove (6) is formed in the side face of the box body (301) and used for leading out a power transmission line of the electric tool.
  4. 4. The device for testing the comprehensive performance of a hand-held electric tool according to claim 3, wherein the conductive sponge (303) comprises an inflatable air bag (3031), a sponge layer (3032) is arranged on the inflatable air bag (3031), and a conductive cloth (3033) is arranged on the outer side of the sponge layer (3032).
  5. 5. A device for testing the overall performance of a hand-held power tool according to claim 4, wherein the two fixing jigs (7) are different in size, the fixing jigs (7) comprise two clamp plates (701) hinged to each other, a filling air bag (702) is arranged on the inner side of the clamp plates (701), and an air supply assembly (5) is arranged between the filling air bag (3031) and the filling air bag (702).
  6. 6. The device for testing the comprehensive performance of the handheld electric tool, as set forth in claim 5, wherein the air supply assembly (5) comprises a three-way pipe (501) connected with two three-way valves (502), one end of the three-way pipe (501) is connected with an inflation pipe II (504) for communicating two inflation air bags (3031), the two three-way valves (502) are respectively provided with an inflation pipe I (503), and the inflation pipe I (503) is respectively communicated with the corresponding inflation air bags (702).
  7. 7. A device for testing the overall performance of a hand-held power tool as set forth in claim 1, wherein said measuring unit (204) is an encoder.
  8. 8. The device for testing the comprehensive performance of the handheld electric tool according to claim 1, wherein the controller (4) comprises a main control unit, a power management module, an insulation resistance measurement module, an encoder interface circuit, a display module and a non-contact current measurement module.

Description

Comprehensive performance inspection device for handheld electric tool Technical Field The utility model belongs to the field of hand-held electric tool testing, and particularly relates to a comprehensive performance testing device for a hand-held electric tool. Background The hand-held electric tool is widely applied to various fields such as industrial production, building construction, home decoration and the like, and brings great convenience to work and life of people. However, such tools are in direct contact with the human body during use, and their electrical safety performance is critical. The idle power and the insulation resistance are used as core indexes for measuring the electrical safety performance of the handheld electric tool. At present, fixed electrodes are adopted in insulation resistance testing of a handheld electric tool, the contact area is limited, poor contact is easily caused by a curved surface of a tool shell, conductive paste is manually smeared to enhance contact in insulation resistance testing, and the risk that the conductive paste pollutes the tool exists, so that accuracy and reliability are required to be improved when facing complex working conditions and different environmental conditions. Disclosure of utility model In order to solve the technical problems, the utility model provides a comprehensive performance inspection device for a handheld electric tool, which aims to solve the problems that in the prior art, a fixed electrode is adopted for insulation resistance test, the contact area is limited, and the accuracy and the reliability are required to be improved when facing complex working conditions and different environmental conditions. The comprehensive performance testing device of the handheld electric tool comprises a base, wherein an idle power measuring assembly and an insulation resistance measuring assembly are arranged on the base; The no-load power measurement assembly comprises a detection wheel capable of moving along a Z axis, a measurement unit is arranged on the detection wheel, the measurement unit is connected with a controller and is used for measuring insulation resistance, no-load rotating speed and no-load current, and a plurality of fixing clamps for clamping the electric tool are arranged on the outer side of the lifting support on the base; The insulation resistance measurement assembly comprises two conductive sponges which are arranged up and down oppositely and used for wrapping the shell of the electric tool. Preferably, the no-load power measuring assembly further comprises a supporting plate for installing the measuring unit and the detecting wheel, and a lifting bracket is further arranged on the supporting plate and used for driving the supporting plate to move along the Z axis. Preferably, the insulation resistance measurement assembly further comprises a box body arranged on the base, an upper cover is hinged to the box body, two conductive sponges are respectively arranged on the inner sides of the box body and the upper cover, and a notch groove is formed in the side face of the box body and used for leading out a power transmission line of the electric tool. Preferably, the conductive sponge comprises an inflatable air bag, a sponge layer is arranged on the inflatable air bag, and conductive cloth is arranged on the outer side of the sponge layer. Preferably, the two fixing fixtures are different in size, each fixing fixture comprises two clamp plates hinged to each other, a filling air bag is arranged on the inner side of each clamp plate, and an air supply assembly is arranged between each filling air bag and each inflating air bag. Preferably, the air supply assembly comprises a three-way pipe connected with two three-way valves, one end of the three-way pipe is connected with an inflation pipe II for communicating two inflatable air bags, the two three-way valves are respectively provided with an inflation pipe I, and the inflation pipe I is respectively communicated with the corresponding inflatable air bags. Preferably, the measuring unit is an encoder. Preferably, the controller is composed of a main control unit, a power management module, an insulation resistance measurement module, an encoder interface circuit, a display module and a non-contact current measurement module. Compared with the prior art, the utility model has the following beneficial effects: 1. According to the utility model, the inflatable air bag pushes the conductive cloth to fully cover the tool shell, so that the contact area is increased compared with that of the traditional method, the test omission ratio of insulation resistance test is reduced, and the electric tool can be suitable for electric tools with different types and sizes. 2. According to the utility model, the handles of the electric tools are fixed through the two clamp plates, and the self-adaptive clamping of the electric tools is realized by inflating the filling air bags, so