CN114459332B

CN114459332B - Automatic resistor disc testing device

Info

Publication number: CN114459332B
Application number: CN202111599309.3A
Authority: CN
Inventors: 李媛
Original assignee: Yangzhou Yunfa Electric Co ltd
Current assignee: Yangzhou Yunfa Electric Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2023-10-27
Anticipated expiration: 2041-12-24
Also published as: CN114459332A

Abstract

The application provides an automatic resistor disc testing device which comprises a first nominal to-be-tested plate, a second nominal to-be-tested plate, a first nominal resistor disc, a testing plate, a manipulator, a conveyor belt, an extrusion device and a workbench, wherein the first nominal resistor disc is arranged on the first nominal to-be-tested plate; the first nominal board to be measured and the second nominal board to be measured are fixedly connected with the workbench, the first nominal board to be measured is used for pasting a first nominal resistor disc, and the second nominal board to be measured is used for pasting a resistor disc to be measured; the conveyor belt is positioned at one side of the workbench and is used for conveying the resistor disc to be tested; the test board is arranged on the workbench and is used for electrically connecting the first nominal resistor disc and the resistor disc to be tested to test the first nominal resistor disc and the resistor disc to be tested; the mechanical arm is arranged on the workbench and is used for clamping the resistor disc to be tested on the conveyor belt onto a second nominal board to be tested; the extrusion device is used for synchronously extruding the first nominal board to be tested and the second nominal board to be tested. The problems of low detection efficiency and low accuracy in the prior art are solved.

Description

Automatic resistor disc testing device

Technical Field

The application relates to the technical field of resistor disc detection, in particular to an automatic resistor disc testing device.

Background

The resistance sheet is also called as a resistance strain gauge and generally comprises a patch and a resistance wire, wherein the resistance wire is fixed on one surface of the patch, the other surface of the patch is stuck on the surface of a measured object, and the resistance wire is driven to deform when the measured object deforms, so that the resistance value is changed, and an electric signal passing through the resistance wire is acquired and calculated through an external detection instrument, so that the stress of the measured object at the patch is calculated.

The resistance sheet detection is to detect the performance of the resistance sheet, in the prior art, a worker is usually required to manually connect two binding posts of the resistance sheet with a measuring head of a detection instrument, attach the resistance sheet on the surface of a nominal board to be detected, squeeze the nominal board to be detected to enable the deformation of the nominal board to be detected to reach the preset deformation, then read the resistance value of the resistance sheet, then compare the resistance value with the resistance value corresponding to the nominal strain sheet under the same variable phase quantity, and judge whether the error value is in an allowable range, thereby judging whether the strain sheet is qualified.

However, in the process of manually pasting the patch on the nominal board to be tested, phenomena such as pasting azimuth errors, interference of water vapor on hands to voltage and current and the like are easy to occur, the detection accuracy is affected, and the working efficiency is low.

Disclosure of Invention

The application provides an automatic resistor disc testing device which is used for solving the problems of low detection efficiency and low accuracy in the prior art.

In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

an automatic resistor disc testing device comprises a first nominal to-be-tested plate, a second nominal to-be-tested plate, a first nominal resistor disc, a testing plate, a manipulator, a conveyor belt, an extrusion device and a workbench;

the first nominal board to be measured and the second nominal board to be measured are horizontally arranged, the first nominal board to be measured and the second nominal board to be measured are arranged side by side along the horizontal direction, one side of the first nominal board to be measured is fixedly connected with the workbench, one side of the second nominal board to be measured is fixedly connected with the workbench, the upper surface of the first nominal board to be measured and the upper surface of the second nominal board to be measured are positioned on the same horizontal plane, the first nominal board to be measured is used for pasting a first nominal resistor sheet, and the second nominal board to be measured is used for pasting a resistor sheet to be measured;

the conveyor belt is positioned at one side of the workbench and is used for conveying the resistor disc to be tested;

the test board is arranged on the workbench and is used for electrically connecting the first nominal resistor disc and the resistor disc to be tested to test the first nominal resistor disc and the resistor disc to be tested;

The manipulator is arranged on the workbench and is used for clamping the resistor disc to be tested on the conveyor belt onto a second nominal board to be tested;

the extrusion device is used for synchronously extruding a first nominal board to be measured and a second nominal board to be measured, and the deformation of the first nominal board to be measured and the deformation of the second nominal board to be measured are the same when the first nominal board to be measured and the second nominal board to be measured are extruded by the extrusion device;

the material of the first nominal board to be measured is the same as that of the second nominal board to be measured, the shape of the first nominal board to be measured is the same as that of the second nominal board to be measured, and the size of the first nominal board to be measured is the same as that of the second nominal board to be measured.

In some embodiments, a first positioning groove is formed in the upper surface of the first nominal board to be measured, the first positioning groove is used for pasting the first nominal resistor disc, a second positioning groove is formed in the upper surface of the second nominal board to be measured, the second positioning groove is used for loading the resistor disc to be measured, and the position of the first positioning groove on the first nominal board to be measured corresponds to the position of the second positioning groove on the second nominal board to be measured.

In some embodiments, the manipulator comprises an electric turntable, a hydraulic lifting rod, a first cantilever, a second cantilever, a push rod, an air pump, an air pipe and a sucker;

The workbench comprises a base and a boss, wherein the base is fixedly connected with the boss, the boss is positioned above the base, and the boss is positioned on one side of the base;

the electric turntable is positioned above the boss, the electric turntable is fixedly connected with the upper surface of the boss, the hydraulic lifting rod is vertically arranged, the hydraulic lifting rod is positioned above the electric turntable, the lower end of the hydraulic lifting rod is fixedly connected with the upper surface of the electric turntable, the rotation central axis of the electric turntable is vertically arranged, the central axis of the hydraulic lifting rod is positioned on the same straight line with the rotation central axis of the electric turntable, the first cantilever is horizontally arranged, one end of the first cantilever is fixedly connected with the upper end of the hydraulic lifting rod, the ejector rod is vertically arranged, the ejector rod is positioned below the first cantilever, the upper end of the ejector rod is fixedly connected with one end of the first cantilever away from the hydraulic lifting rod, the second cantilever is positioned on one side of the first cantilever away from the hydraulic lifting rod, one end of the second cantilever is fixedly connected with the upper end of the hydraulic lifting rod, the second cantilever is horizontally arranged, the air pump is fixedly connected with the upper end of the air pump, the air pump is fixedly connected with the lower air pump, the air pump is fixedly connected with the air pump, the air pump is fixedly arranged at the lower end of the air pump, the air pump is fixedly connected with the air pump, the air pump is fixedly arranged at the air pump is far from the central axis of the air pump, the air pump is fixedly connected with the air suction cup, the air pump is fixedly arranged at the air suction cup, and the air suction cup is fixedly connected with the air suction cup, the distance between the ejector rod and the hydraulic lifting rod is equal to the distance between the air pipe and the hydraulic lifting rod;

The ejector rod is used for pushing down the resistor to be tested loaded in the second positioning groove, and the sucker is used for sucking the resistor to be tested on the conveyor belt into the second positioning groove or sucking the resistor to be tested in the second positioning groove out of the second positioning groove.

In some embodiments, the extruding device is located on one side of the base away from the boss, a mounting groove is formed in one side of the boss, close to the extruding device, and is horizontally arranged, the first nominal board to be measured and the second nominal board to be measured are located between the boss and the extruding device, one side of the first nominal board to be measured, away from the extruding device, is fixedly connected with the mounting groove, and one side of the second nominal board to be measured, away from the extruding device, is fixedly connected with the mounting groove;

the extruding device comprises a guide plate, a first fork rod, a second fork rod, a compression rod, a push-pull block and a hydraulic cylinder;

the guide plate is vertically arranged, the second fork rod is vertically arranged, the guide plate is connected with the base in a sliding mode along the vertical direction, the guide plate is parallel to the mounting groove, the first fork rod is located above the guide plate, the first fork rod is located at two ends of the guide plate, the first fork rod is parallel to the mounting groove in the arrangement direction of the second fork rod, the lower end of the first fork rod is fixedly connected with the guide plate, the lower end of the second fork rod is fixedly connected with the guide plate, the pressure rod is parallel to the mounting groove, the pressure rod is located between the first fork rod and the second fork rod, one end of the pressure rod is connected with the first fork rod in a rotating mode, the other end of the pressure rod is connected with the second fork rod in a rotating mode, the pressure rod is located at two ends of the guide plate, the pressure rod is located at the upper side of the first nominal plate to be detected and the second nominal plate to be detected, the lower end of the guide plate is located at the lower end of the guide plate is far away from the hydraulic cylinder, and the guide plate is fixedly connected with the hydraulic cylinder.

In some embodiments, the upper surface of the base is provided with a guide groove, the guide groove is arranged along the vertical direction, the guide plate is inserted into the guide groove, and the guide plate is in sliding connection with the guide groove along the vertical direction.

In some embodiments, the upper surface of base is equipped with the installation breach, the installation breach is located the guide way is kept away from one side of installation groove, the installation breach with the guide way intercommunication, the push-and-pull piece is located the installation breach is inboard, the pneumatic cylinder is located inside the installation breach, the lower extreme of pneumatic cylinder with the bottom surface fixed connection of installation breach.

In some embodiments, the manipulator further comprises a fixed pressing plate and an elastic pressing plate, the fixed pressing plate is horizontally arranged, the fixed pressing plate is located below the ejector rod, the lower end of the ejector rod is fixedly connected with the central position of the upper surface of the fixed pressing plate, the shape of the fixed pressing plate is identical to that of the resistor to be tested, the elastic pressing plate is elastic, the elastic pressing plate is located below the fixed pressing plate, the elastic pressing plate is horizontally arranged, the upper surface of the elastic pressing plate is fixedly connected with the lower surface of the fixed pressing plate, the shape of the elastic pressing plate is identical to that of the resistor to be tested, and the edge of the elastic pressing plate is parallel to the edge of the fixed pressing plate.

In some embodiments, the automatic resistor disc testing device further comprises a turnover plate, an elastic contact, a rotating motor and a rotating shaft;

the rotating motor is positioned above the boss, the rotating motor is fixedly connected with the upper surface of the boss, the rotating shaft is rotationally connected with the boss, the rotating shaft is parallel to the mounting groove, the rotating motor is positioned at one end of the rotating shaft, the rotating shaft is fixedly connected with the output shaft of the rotating motor, the central axis of the rotating shaft is positioned on the same straight line with the central axis of the rotating motor, the turnover plate is parallel to the mounting groove, the turnover plate is positioned above the first positioning groove and the second positioning groove, one side of the turnover plate is fixedly connected with the rotating shaft, the test plate is parallel to the turnover plate, the test plate is positioned below the turnover plate, the upper surface of the test plate is fixedly connected with the lower surface of the turnover plate, the elastic contact is vertical to the test plate, the elastic contact is positioned below the turnover plate, the upper end of the elastic contact is fixedly connected with the test plate, the elastic contact can be vertically deformed along the test plate, the elastic contact can be respectively in the direction of the first positioning groove and the elastic contact can be connected with the second positioning plate, and the elastic contact can be deformed in the first positioning plate and the second positioning plate.

In some embodiments, the automatic resistor disc testing device further includes a third nominal board to be tested, a second nominal resistor disc, the third nominal board to be tested is horizontally disposed, the third nominal board to be tested, the first nominal board to be tested, the second nominal board to be tested are arranged along a direction parallel to the mounting groove, the second nominal board to be tested is located between the first nominal board to be tested and the second nominal board to be tested, one side of the third nominal board to be tested is fixedly connected with the mounting groove, the other side of the third nominal board to be tested is located below the pressing rod, the material of the third nominal board to be tested is the same as the material of the first nominal board to be tested, the shape of the third nominal board to be measured is the same as that of the first nominal board to be measured, the size of the third nominal board to be measured is the same as that of the first nominal board to be measured, a third positioning groove is formed in the upper surface of the third nominal board to be measured, the shape of the third positioning groove corresponds to that of the second nominal resistor disc, the third positioning groove is used for pasting the second nominal resistor disc, the position of the third positioning groove on the third nominal board to be measured corresponds to that of the first positioning groove on the first nominal board to be measured, and the elastic contact can be electrically connected with the second nominal resistor disc in the third positioning groove after the overturning plate is overturned downwards.

In some embodiments, the automatic resistor disc testing device further comprises a good product box and a defective product box, wherein the good product box and the defective product box are positioned on one side of the base far away from the extrusion device, and the good product box and the defective product box are arranged along a direction parallel to the mounting groove;

and/or, the automatic resistor disc testing device further comprises a controller, wherein the hydraulic lifting rod, the air pump, the rotating motor, the hydraulic cylinder, the conveyor belt and the test board are respectively and electrically connected with the controller, and the controller is used for controlling the hydraulic lifting rod, the electric turntable, the air pump, the rotating motor, the hydraulic cylinder and the conveyor belt to operate once and controlling the hydraulic lifting rod, the electric turntable, the air pump, the rotating motor, the hydraulic cylinder and the conveyor belt to operate twice according to the test result of the test board.

The beneficial effects are that:

according to the automatic resistor testing device, in the working process, the first nominal resistor is stuck on the first nominal to-be-tested plate, the to-be-tested resistor is conveyed through the conveying belt, the mechanical arm clamps and transfers the to-be-tested resistor to the second nominal to-be-tested plate, the extrusion device synchronously extrudes the first nominal to-be-tested plate and the second nominal to-be-tested plate, so that the same deformation amount of the first nominal to-be-tested plate and the second nominal to-be-tested plate occurs, the testing plate detects the electrical signals of the first nominal resistor and the to-be-tested resistor, the electrical signals of the to-be-tested resistor are compared with the electrical signals of the first nominal resistor, if the difference value between the electrical signals of the to-be-tested resistor and the electrical signals of the first nominal resistor is within the preset range, the to-be-tested resistor is qualified, and if the difference value between the electrical signals of the to-be-tested resistor and the electrical signals of the first nominal resistor is outside the preset range, the to-be-tested resistor is unqualified, the automatic resistor testing device can automatically detect the to-be-tested resistor, compared with the prior art, the error caused by manual operation is reduced, and the error of the to be tested is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an automatic resistor testing device according to an embodiment of the present application;

FIG. 2 is a top view of an automatic test equipment for resistor sheets according to an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 4 is an illustration of the connection structure of the first, second, and third nominal boards to be measured and the table according to an embodiment of the present application;

FIG. 5 is a schematic view of a structure of a workbench according to an embodiment of the application;

FIG. 6 is a schematic structural diagram of a first, a second, and a third nominal board to be measured according to an embodiment of the present application;

FIG. 7 is a schematic view of a connection structure of a turnover plate, a rotating shaft, a test plate, a rotating motor and an elastic contact in an embodiment of the present application;

FIG. 8 is a schematic view of a manipulator according to an embodiment of the present application;

Fig. 9 is a schematic diagram of the connection relationship between the hydraulic lifting rod, the air pump, the rotating motor, the hydraulic cylinder, the conveyor belt and the controller in the embodiment of the application.

Reference numerals:

101. a first nominal board to be measured; 102. a second nominal board to be measured; 103. a first nominal resistor sheet; 104. a test board; 105. a manipulator; 106. a conveyor belt; 107. an extrusion device; 108. a work table; 109. a first positioning groove; 110. a second positioning groove; 111. an electric turntable; 112. a hydraulic lifting rod; 113. a first cantilever; 114. a second cantilever; 115. a push rod; 116. an air pump; 117. an air pipe; 118. a suction cup; 119. a base; 120. a boss; 121. a mounting groove; 122. a guide plate; 123. a first fork lever; 124. a second fork lever; 125. a compression bar; 126. a push-pull block; 127. a hydraulic cylinder; 128. a guide groove; 129. a mounting notch; 130. a fixed pressing plate; 131. an elastic pressing plate; 132. a turnover plate; 133. an elastic contact; 134. a rotating electric machine; 135. a rotating shaft; 136. a third nominal board to be measured; 137. a second nominal resistor sheet; 138. a third positioning groove; 139. a good product box; 140. a defective bin; 141. a controller; 142. and a resistor sheet to be measured.

Detailed Description

Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the application but are not intended to limit the scope of the application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.

In embodiments of the application, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, the description with reference to the terms "specific example", "one embodiment", "example", "some embodiments", "some examples", "some implementations", or "possible implementations", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

As shown in fig. 1 to 9, in an embodiment of the present application, there is provided an automatic test apparatus for a resistor sheet, including a first nominal board to be tested 101, a second nominal board to be tested 102, a first nominal resistor sheet 103, a test board 104, a robot 105, a conveyor belt 106, a pressing device 107, and a table 108; the first nominal board 101 to be measured and the second nominal board 102 to be measured are horizontally arranged, the first nominal board 101 to be measured and the second nominal board 102 to be measured are arranged side by side along the horizontal direction, one side of the first nominal board 101 to be measured is fixedly connected with the workbench 108, one side of the second nominal board 102 to be measured is fixedly connected with the workbench 108, the upper surface of the first nominal board 101 to be measured and the upper surface of the second nominal board 102 to be measured are positioned on the same horizontal plane, the first nominal board 101 to be measured is used for pasting a first nominal resistor disc 103, and the second nominal board 102 to be measured is used for pasting a resistor disc 142 to be measured; the conveyor belt 106 is located at one side of the workbench 108, and the conveyor belt 106 is used for conveying the resistor sheet 142 to be tested; the test board 104 is mounted on the workbench 108, and the test board 104 is used for electrically connecting the first nominal resistor 103 and the resistor 142 to be tested and testing the first nominal resistor 103 and the resistor 142 to be tested; the manipulator 105 is mounted on the workbench 108, and the manipulator 105 is used for clamping the resistor disc 142 to be tested on the conveyor belt 106 onto the second nominal board to be tested 102; the extrusion device 107 is used for synchronously extruding the first nominal board to be measured 101 and the second nominal board to be measured 102, and the deformation amounts of the first nominal board to be measured 101 and the second nominal board to be measured 102 when being extruded by the extrusion device 107 are the same; the material of the first nominal board to be measured 101 is the same as that of the second nominal board to be measured 102, the shape of the first nominal board to be measured 101 is the same as that of the second nominal board to be measured 102, and the size of the first nominal board to be measured 101 is the same as that of the second nominal board to be measured 102.

In the automatic resistor testing device provided in this embodiment, in the working process, the first nominal resistor 103 is adhered to the first nominal board to be tested 101, the resistor 142 to be tested is transferred by the conveyor belt 106, the manipulator 105 clamps and transfers the resistor 142 to be tested to the second nominal board to be tested 102, the extrusion device 107 synchronously extrudes the first nominal board to be tested 101 and the second nominal board to be tested 102, so that the first nominal board to be tested 101 and the second nominal board to be tested 102 have the same deformation, the test board 104 detects the electrical signals of the first nominal resistor 103 and the resistor 142 to be tested, the electrical signals of the resistor 142 to be tested are compared with the electrical signals of the first nominal resistor 103, if the difference between the electrical signals of the resistor 142 to be tested and the electrical signals of the first nominal resistor 103 is within the preset range, the resistor 142 to be tested is qualified, if the difference between the electrical signals of the resistor 142 to be tested and the electrical signals of the first nominal resistor 103 is outside the preset range, the resistor 142 to be tested is not qualified, the resistor 142 to be tested is illustrated, the automatic resistor testing device provided in this embodiment can detect the electrical signals of the resistor 142 to be tested, and the working efficiency is reduced compared with the prior art, and the error is reduced, and the working efficiency is improved.

In some embodiments, a first positioning groove 109 is formed on the upper surface of the first nominal board to be measured 101, the first positioning groove 109 is used for pasting the first nominal resistor disc 103, a second positioning groove 110 is formed on the upper surface of the second nominal board to be measured 102, the second positioning groove 110 is used for loading the resistor disc 142 to be measured, and the position of the first positioning groove 109 on the first nominal board to be measured 101 corresponds to the position of the second positioning groove 110 on the second nominal board to be measured 102.

In some embodiments, the manipulator 105 includes an electric turntable 111, a hydraulic lifting rod 112, a first cantilever 113, a second cantilever 114, a ram 115, an air pump 116, an air tube 117, and a suction cup 118; the workbench 108 comprises a base 119 and a boss 120, wherein the base 119 is fixedly connected with the boss 120, the boss 120 is positioned above the base 119, and the boss 120 is positioned on one side of the base 119; the electric turntable 111 is positioned above the boss 120, the electric turntable 111 is fixedly connected with the upper surface of the boss 120, the hydraulic lifting rod 112 is vertically arranged, the hydraulic lifting rod 112 is positioned above the electric turntable 111, the lower end of the hydraulic lifting rod 112 is fixedly connected with the upper surface of the electric turntable 111, the rotation central axis of the electric turntable 111 is vertically arranged, the central axis of the hydraulic lifting rod 112 and the rotation central axis of the electric turntable 111 are positioned on the same straight line, the first cantilever 113 is horizontally arranged, one end of the first cantilever 113 is fixedly connected with the upper end of the hydraulic lifting rod 112, the ejector rod 115 is vertically arranged, the ejector rod 115 is positioned below the first cantilever 113, the upper end of the ejector rod 115 is fixedly connected with one end of the first cantilever 113 away from the hydraulic lifting rod 112, the second cantilever 114 is positioned on one side of the hydraulic lifting rod 112 away from the first cantilever 113, the second cantilever 114 is positioned on the same straight line with the first cantilever 113, one end of the second cantilever 114 is fixedly connected with the upper end of the hydraulic lifting rod 112, the air pump 116 is fixedly connected with one end of the second cantilever 114 far away from the hydraulic lifting rod 112, the air pipe 117 is vertically arranged, the air pipe 117 is positioned below the air pump 116, the upper end of the air pipe 117 is fixedly connected with the air pump 116, the air pipe 117 is connected with an air suction port of the air pump 116, the sucker 118 is fixedly connected with the lower end of the air pipe 117, the opening of the sucker 118 is vertically downward, the inner space of the sucker 118 is communicated with the inner channel of the air pipe 117, the central axis of the ejector rod 115, the center of the sucker 118 and the central axis of the air pipe 117 are positioned on the same vertical plane, and the distance between the ejector rod 115 and the hydraulic lifting rod 112 is equal to the distance between the air pipe 117 and the hydraulic lifting rod 112; the ejector rod 115 is used for pushing down the resistor disc 142 to be tested loaded in the second positioning groove 110, and the sucker 118 is used for sucking the resistor disc 142 to be tested on the conveyor belt 106 into the second positioning groove 110 or sucking the resistor disc 142 to be tested in the second positioning groove 110 out of the second positioning groove 110.

In some embodiments, the extruding device 107 is located on one side of the base 119 far from the boss 120, a mounting groove 121 is formed on one side of the boss 120 near to the extruding device 107, the mounting groove 121 is horizontally arranged, the first nominal board to be measured 101 and the second nominal board to be measured 102 are located between the boss 120 and the extruding device 107, one side of the first nominal board to be measured 101 far from the extruding device 107 is fixedly connected with the mounting groove 121, and one side of the second nominal board to be measured 102 far from the extruding device 107 is fixedly connected with the mounting groove 121; the extrusion device 107 comprises a guide plate 122, a first fork rod 123, a second fork rod 124, a compression rod 125, a push-pull block 126 and a hydraulic cylinder 127; the guide plate 122, first fork rod 123, second fork rod 124, pneumatic cylinder 127 vertical setting, guide plate 122 and base 119 are along vertical direction sliding connection, guide plate 122 is parallel with mounting groove 121, first fork rod 123, second fork rod 124 is located the top of guide plate 122, first fork rod 123 and second fork rod 124 are located the both ends of guide plate 122, the range direction of first fork rod 123 and second fork rod 124 is parallel with mounting groove 121, the lower extreme and the guide plate 122 fixed connection of first fork rod 123 become, the lower extreme and the guide plate 122 fixed connection of second fork rod 124, depression bar 125 is parallel with mounting groove 121, depression bar 125 is located between first fork rod 123 and the second fork rod 124, one end and the first fork rod 123 rotation of depression bar 125 are connected, the other end and the second fork rod 124 rotation of depression bar 125 are connected, depression bar 125 is located the top of first nominally waiting to measure board 101 and second nominally waiting to measure board 102, push-pull block 126 is located the one side that guide plate 122 kept away from mounting groove 121, push-pull block 126 and guide plate 122 fixed connection, push-pull block 126 and the upper end of guide plate 122 are located the lower extreme 127 of depression bar 126, the lower extreme and pneumatic cylinder 127 fixed connection of depression bar 126 are connected with the pneumatic cylinder 119 fixed connection of base 119.

In some embodiments, the upper surface of the base 119 is provided with a guide groove 128, the guide groove 128 is arranged along the vertical direction, the guide plate 122 is inserted into the guide groove 128, and the guide plate 122 is slidably connected with the guide groove 128 along the vertical direction.

In some embodiments, the upper surface of the base 119 is provided with a mounting notch 129, the mounting notch 129 is located at one side of the guide groove 128 away from the mounting groove 121, the mounting notch 129 is communicated with the guide groove 128, the push-pull block 126 is located inside the mounting notch 129, the hydraulic cylinder 127 is located inside the mounting notch 129, and the lower end of the hydraulic cylinder 127 is fixedly connected with the bottom surface of the mounting notch 129.

In some embodiments, the manipulator 105 further includes a fixed platen 130 and an elastic platen 131, where the fixed platen 130 is horizontally disposed, the fixed platen 130 is located below the ejector rod 115, the lower end of the ejector rod 115 is fixedly connected to the central position of the upper surface of the fixed platen 130, the shape of the fixed platen 130 is the same as that of the resistive sheet 142 to be tested, the elastic platen 131 has elasticity, the elastic platen 131 is located below the fixed platen 130, the elastic platen 131 is horizontally disposed, the upper surface of the elastic platen 131 is fixedly connected to the lower surface of the fixed platen 130, the shape of the elastic platen 131 is the same as that of the resistive sheet 142 to be tested, and the edge of the elastic platen 131 is parallel to the edge of the fixed platen 130.

In some embodiments, the automatic resistor disc testing device further comprises a turnover plate 132, an elastic contact 133, a rotary motor 134 and a rotating shaft 135; the rotating motor 134 and the rotating shaft 135 are positioned above the boss 120, the rotating motor 134 is fixedly connected with the upper surface of the boss 120, the rotating shaft 135 is rotationally connected with the boss 120, the rotating shaft 135 is parallel to the mounting groove 121, the rotating motor 134 is positioned at one end of the rotating shaft 135, the rotating shaft 135 is fixedly connected with the output shaft of the rotating motor 134, the central axis of the rotating shaft 135 and the central axis of the rotating motor 134 are positioned on the same straight line, the turnover plate 132 is parallel to the mounting groove 121, the turnover plate 132 is positioned above the first positioning groove 109 and the second positioning groove 110, one side of the turnover plate 132 is fixedly connected with the rotating shaft 135, the test plate 104 is parallel to the turnover plate 132, the test plate 104 is positioned below the turnover plate 132, the upper surface of the test plate 104 is fixedly connected with the lower surface of the turnover plate 132, the elastic contact 133 is vertical to the test plate 104, the elastic contact 133 is positioned below the turnover plate 132, the upper end of the elastic contact 133 is fixedly connected with the test plate 104, the elastic contact 133 can elastically deform along the direction vertical to the test plate 104, the lower end of the elastic contact 133 can be turned over against the first positioning groove 103 and the nominal resistor plate 109 to be tested in the first positioning groove 109, and the resistor plate 110 can be tested, respectively.

In some embodiments, the automatic resistor disc testing device further includes a third nominal board to be tested 136, a second nominal resistor disc 137, where the third nominal board to be tested 136 is horizontally disposed, the third nominal board to be tested 136, the first nominal board to be tested 101, and the second nominal board to be tested 102 are arranged along a direction parallel to the mounting groove 121, the second nominal board to be tested 102 is located between the first nominal board to be tested 101 and the second nominal board to be tested 102, one side of the third nominal board to be tested 136 is fixedly connected with the mounting groove 121, the other side of the third nominal board to be tested 136 is located below the compression bar 125, the third nominal board to be tested 136 is made of the same material as the first nominal board to be tested 101, the shape of the third nominal board 136 to be measured is the same as the shape of the first nominal board 101 to be measured, the size of the third nominal board 136 to be measured is the same as the size of the first nominal board 101 to be measured, a third positioning groove 138 is formed in the upper surface of the third nominal board 136 to be measured, the shape of the third positioning groove 138 corresponds to the shape of the second nominal resistor 137, the third positioning groove 138 is used for pasting the second nominal resistor 137, the position of the third positioning groove 138 on the third nominal board 136 corresponds to the position of the first positioning groove 109 on the first nominal board 101 to be measured, and the elastic contact 133 can be electrically connected with the second nominal resistor 137 in the third positioning groove 138 after the overturning plate 132 is overturned downwards.

In some embodiments, the automatic resistor disc testing device further includes a good case 139 and a defective case 140, where the good case 139 and the defective case 140 are located on a side of the base 119 away from the pressing device 107, and the good case 139 and the defective case 140 are arranged in a direction parallel to the mounting groove 121; and/or, the automatic resistor disc testing device further comprises a controller 141, the hydraulic lifting rod 112, the electric turntable 111, the air pump 116, the rotating motor 134, the hydraulic cylinder 127, the conveyor belt 106 and the test board 104 are respectively and electrically connected with the controller 141, and the controller 141 is used for controlling the hydraulic lifting rod 112, the air pump 116, the rotating motor 134, the hydraulic cylinder 127 and the conveyor belt 106 to perform primary operation and controlling the hydraulic lifting rod 112, the electric turntable 111, the air pump 116, the rotating motor 134, the hydraulic cylinder 127 and the conveyor belt 106 to perform secondary operation according to a test result of the test board 104.

According to the resistor automatic test device provided by the embodiment, two nominal resistor pieces 142 to be tested (the first nominal resistor piece 103 and the second nominal resistor piece 137) are adopted and can be compared with each other, when one nominal resistor piece fails (physical damage or exceeds the service life and the like), the failed nominal resistor piece can be timely detected and replaced through the other nominal resistor piece, the performance of the two nominal resistor pieces is ensured to be within the error range of nominal (standard) performance operation, and the reference standard of the resistor piece 142 to be tested is more reliable;

The primary operation comprises the following steps: the controller 141 firstly controls the conveyor belt 106 to convey the resistor sheet 142 to be tested to the space range which can be clamped by the manipulator 105 or to convey the resistor sheet 142 to be tested on the conveyor belt 106 to the position consistent with the preset position, then controls the hydraulic lifting rod 112 of the machine to rise to the first preset height, so that the lower ends of the sucker 118 and the ejector rod 115 are higher than the upper surface of the boss 120, controls the electric turntable 111 to positively rotate by the first preset angle, so that the sucker 118 is positioned right above the resistor sheet 142 to be tested on the conveyor belt 106, controls the hydraulic lifting rod 112 to fall to the second preset height, so that the lower surface of the sucker 118 is abutted with the upper surface of the resistor sheet 142 to be tested on the conveyor belt 106, controls the air pump 116 to operate, and the air pump 116 pumps the sucker 118 through the air pipe 117 to suck the resistor sheet 142 to be tested, the hydraulic lifting rod 112 is controlled to rise to a first preset height, the electric turntable 111 is controlled to reverse a first preset angle, at the moment, the resistor disc 142 to be tested sucked by the suction cup 118 is aligned with the second positioning groove 110 along the vertical direction, the hydraulic lifting rod 112 is controlled to fall to a third preset height, the resistor disc 142 to be tested sucked by the suction cup 118 is loaded (placed) in the second positioning groove 110, the air pump 116 is controlled to stop running, the suction cup 118 releases pressure to loosen the resistor disc 142 to be tested, the hydraulic lifting rod 112 is controlled to rise to the first preset height, the electric turntable 111 is controlled to rotate for 180 degrees, the elastic pressing plate 131 is positioned right above the second positioning groove 110, the hydraulic lifting rod 112 is controlled to fall to the third preset height, the elastic pressing plate 131 presses the resistor disc 142 to be tested, at the moment, the elastic pressing plate 131 is in a compressed state, the elastic pressing plate 131 adopts a sponge sheet or a sponge block, the to-be-tested resistor disc 142 can be tightly matched with the surface of the second nominal to-be-tested plate 102 after the second nominal to-be-tested plate 102 is deformed (the same as the pasting effect), the rotating motor 134 is controlled to rotate forward by a second preset angle to drive the overturning plate 132 to overturn downwards, so that the elastic contacts 133 on the test plate 104 are respectively electrically connected with the first nominal resistor disc 103, the second nominal resistor disc 137 and the to-be-tested resistor disc 142 in a one-to-one correspondence manner;

The secondary operation includes: the test board 104 sends the testing result to the controller 141, the controller 141 controls the rotating electrical machine 134 to reverse the second preset angle according to the testing result, the turnover board 132 turns over upwards, the elastic contact 133 is disconnected with the first nominal resistance piece 103, the second nominal resistance piece 137 and the resistance piece 142 to be tested, the hydraulic lifting rod 112 is controlled to descend to the third preset height, at this moment, the lower surface of the suction cup 118 is abutted with the upper surface of the resistance piece 142 to be tested, the air pump 116 is controlled to operate, the suction cup 118 is pumped through the air pipe 117, the suction cup 118 sucks the resistance piece 142 to be tested, the hydraulic lifting rod 112 is controlled to ascend to the first preset height, when the resistance piece 142 to be tested detects failure, the electric turntable 111 is controlled to rotate to the third preset angle, at this moment, the suction cup 118 is positioned right above the defective box 140, the air pump 116 is controlled to stop operating or reversely operating, the suction cup 118 is loosened to the resistance piece 142 to be tested, the resistance piece 142 to be tested is controlled to drop into the defective box 140, at this moment, the electric turntable 111 is controlled to rotate to reset to the fourth preset angle when the resistance piece 142 to be tested is detected to be tested, the suction cup 118 is detected to be qualified, the suction cup 139 is controlled to rotate to the good product box 139 is controlled to be rotated to the good product, and the electrical turntable 139 is controlled to rotate to be tested to be in the good product.

The above "control" is performed by the controller 141.

The above examples are intended to be illustrative of the application and not limiting, and those skilled in the art, after reading the present specification, may make modifications to the embodiments of the application as necessary without inventive contribution, but are protected by the patent laws within the scope of the appended claims.

Claims

1. The automatic resistor disc testing device is characterized by comprising a first nominal to-be-tested plate, a second nominal to-be-tested plate, a first nominal resistor disc, a testing plate, a manipulator, a conveyor belt, an extrusion device and a workbench;

the material of the first nominal board to be measured is the same as that of the second nominal board to be measured, the shape of the first nominal board to be measured is the same as that of the second nominal board to be measured, and the size of the first nominal board to be measured is the same as that of the second nominal board to be measured;

the upper surface of the first nominal board to be measured is provided with a first positioning groove, the first positioning groove is used for pasting the first nominal resistor disc, the upper surface of the second nominal board to be measured is provided with a second positioning groove, the second positioning groove is used for loading the resistor disc to be measured, and the position of the first positioning groove on the first nominal board to be measured corresponds to the position of the second positioning groove on the second nominal board to be measured;

The manipulator comprises an electric turntable, a hydraulic lifting rod, a first cantilever, a second cantilever, a push rod, an air pump, an air pipe and a sucker;

The ejector rod is used for pushing the resistor to be tested loaded in the second positioning groove downwards, and the sucker is used for sucking the resistor to be tested on the conveyor belt into the second positioning groove or sucking the resistor to be tested in the second positioning groove out of the second positioning groove;

the extruding device is positioned on one side of the base far away from the boss, a mounting groove is formed in one side of the boss, close to the extruding device, and is horizontally arranged, the first nominal board to be measured and the second nominal board to be measured are positioned between the boss and the extruding device, one side of the first nominal board to be measured, far away from the extruding device, is fixedly connected with the mounting groove, and one side of the second nominal board to be measured, far away from the extruding device, is fixedly connected with the mounting groove;

the guide plate, the first fork rod, the second fork rod and the hydraulic cylinder are vertically arranged, the guide plate is in sliding connection with the base along the vertical direction, the guide plate is parallel to the mounting groove, the first fork rod and the second fork rod are positioned above the guide plate, the first fork rod and the second fork rod are positioned at two ends of the guide plate, the arrangement direction of the first fork rod and the second fork rod is parallel to the mounting groove, the lower end of the first fork rod is fixedly connected with the guide plate, the lower end of the second fork rod is fixedly connected with the guide plate, the pressure rod is parallel to the mounting groove, the pressure rod is positioned between the first fork rod and the second fork rod, one end of the pressure rod is in rotary connection with the first fork rod, the other end of the pressure rod is in rotary connection with the second fork rod, the pressure rod is positioned at two ends of the guide plate, the pressure rod is positioned at the upper side of the first nominal plate to be detected and the second nominal plate, the lower end of the guide plate is far away from the mounting groove is positioned at the lower end of the guide plate, the guide plate is far away from the hydraulic cylinder, and the guide plate is fixedly connected with the hydraulic cylinder;

The automatic resistor disc testing device further comprises a turnover plate, an elastic contact, a rotating motor and a rotating shaft;

the rotating motor is fixedly connected with the upper surface of the boss, the rotating shaft is rotationally connected with the boss, the rotating shaft is parallel to the mounting groove, the rotating motor is positioned at one end of the rotating shaft, the rotating shaft is fixedly connected with an output shaft of the rotating motor, the central axis of the rotating shaft is positioned on the same straight line with the central axis of the rotating motor, the turnover plate is parallel to the mounting groove, the turnover plate is positioned above the first positioning groove and the second positioning groove, one side of the turnover plate is fixedly connected with the rotating shaft, the test plate is parallel to the turnover plate, the test plate is positioned below the turnover plate, the upper surface of the test plate is fixedly connected with the lower surface of the turnover plate, the elastic contact is perpendicular to the test plate, the elastic contact is positioned below the turnover plate, the upper end of the elastic contact is fixedly connected with the test plate, the elastic contact can be deformed in the vertical direction of the test plate, and the elastic contact can be respectively connected with the first positioning plate and the elastic contact to be measured in the first positioning groove and the second positioning groove;

The automatic resistor disc testing device also comprises a third nominal to-be-tested plate and a second nominal resistor disc, wherein the third nominal to-be-tested plate is horizontally arranged, the third nominal to-be-tested plate, the first nominal to-be-tested plate and the second nominal to-be-tested plate are arranged along the direction parallel to the mounting groove, the second nominal to-be-tested plate is positioned between the first nominal to-be-tested plate and the second nominal to-be-tested plate, one side of the third nominal to-be-tested plate is fixedly connected with the mounting groove, the other side of the third nominal to-be-tested plate is positioned below the pressing rod, the third nominal to-be-tested plate is the same as the first nominal to-be-tested plate in material, the shape of the third nominal board to be measured is the same as that of the first nominal board to be measured, the size of the third nominal board to be measured is the same as that of the first nominal board to be measured, a third positioning groove is formed in the upper surface of the third nominal board to be measured, the shape of the third positioning groove corresponds to that of the second nominal resistor disc, the third positioning groove is used for pasting the second nominal resistor disc, the position of the third positioning groove on the third nominal board to be measured corresponds to that of the first positioning groove on the first nominal board to be measured, and the elastic contact can be electrically connected with the second nominal resistor disc in the third positioning groove after the overturning plate is overturned downwards.

2. The automatic resistor disc testing device according to claim 1, wherein a guide groove is formed in the upper surface of the base, the guide groove is formed in the vertical direction, the guide plate is inserted into the guide groove, and the guide plate is slidably connected with the guide groove in the vertical direction.

3. The automatic resistor disc testing device according to claim 2, wherein an installation notch is formed in the upper surface of the base, the installation notch is located on one side, away from the installation groove, of the guide groove, the installation notch is communicated with the guide groove, the push-pull block is located on the inner side of the installation notch, the hydraulic cylinder is located in the installation notch, and the lower end of the hydraulic cylinder is fixedly connected with the bottom surface of the installation notch.

4. The automatic resistor disc testing device according to claim 1, wherein the manipulator further comprises a fixed pressing plate and an elastic pressing plate, the fixed pressing plate is horizontally arranged, the fixed pressing plate is located below the ejector rod, the lower end of the ejector rod is fixedly connected with the central position of the upper surface of the fixed pressing plate, the shape of the fixed pressing plate is identical to that of the resistor disc to be tested, the elastic pressing plate is elastic, the elastic pressing plate is located below the fixed pressing plate, the elastic pressing plate is horizontally arranged, the upper surface of the elastic pressing plate is fixedly connected with the lower surface of the fixed pressing plate, the shape of the elastic pressing plate is identical to that of the resistor disc to be tested, and the edge of the elastic pressing plate is parallel to the edge of the fixed pressing plate.

5. The automatic resistor disc testing device according to claim 1, further comprising a good case and a defective case, wherein the good case and the defective case are located on a side of the base away from the pressing device, and the good case and the defective case are arranged in a direction parallel to the mounting groove;