CN210036951U

CN210036951U - Electronic scale unbalance loading vision test machine

Info

Publication number: CN210036951U
Application number: CN201921009046.4U
Authority: CN
Inventors: 李博; 黄业富; 黄业朝; 冼辉强; 陶进喜
Original assignee: Zhongshan Niu Er Intelligent Technology Co ltd; University of Electronic Science and Technology of China Zhongshan Institute
Current assignee: Zhongshan Niu Er Intelligent Technology Co ltd; University of Electronic Science and Technology of China Zhongshan Institute
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-02-07
Anticipated expiration: 2029-07-01

Abstract

The utility model provides an electronic scale unbalance loading vision test machine belongs to the heavy check out test set technical field of electronic scale, an electronic scale unbalance loading vision test machine include frame, weight group, remove and send device, testing platform, positioner, the module of shooing and control module. The utility model discloses a carrying device, position around the adjustable weight group and the gravity of examining time measuring, and the cooperation device of shooing detects, can realize the different gravity of same position when detecting and exert pressure and measure, carry out different position multiple spot and detect, detection efficiency is high, the testing result is accurate, avoid weighing the too big condition of data deviation, and in addition, through control module, a complete testing result management system is constituteed to storage module and display module, can record, store, call and show the testing data, avoid the data loss. The detection process adopts control module to control, and carrying mechanism, translation mechanism and positioner homoenergetic are automatic to be moved, and it is efficient to carry, reduces the input of manpower.

Description

Electronic scale unbalance loading vision test machine

Technical Field

The utility model belongs to the technical field of the electronic weighing detection equipment, specifically speaking relates to an electronic scale unbalance loading vision test machine.

Background

After the finished product of the electronic scale is produced, the electronic scale needs to be subjected to unbalance loading detection to ensure that the weighing values of all points of a weighing plane of the electronic scale are consistent, avoid the condition of weighing unbalance loading to influence the normal use of the electronic scale, and avoid the problems of inaccurate weighing, large weighing data deviation and the like. Among the prior art, all adopt the manual work to detect the electronic scale unbalance loading, the detection mode is mostly the manual work and places the weight at the planar different positions of electronic scale weighing, then the data of record each point, compare through each point data and judge whether the electronic scale has the unbalance loading condition, at whole in-process, all by artifical manual completion, not only detection efficiency is low, detects inaccurately moreover, the data is lost easily also, can't carry out system management.

Disclosure of Invention

In order to solve the problem that provides among the background art, the utility model provides an electronic scale unbalance loading vision test machine can detect the carrying out unbalance loading of electronic scale, and is efficient, and the human cost is low. And can realize record, storage, demonstration integral type management to the detected data, avoid the data loss, can also call data in the later stage moreover.

The utility model provides a technical scheme that its technical problem adopted as follows:

an electronic scale unbalance loading vision testing machine comprises a frame, a weight group, a carrying device, a detection platform, a positioning device, a photographing module and a control module, wherein the detection platform for bearing an electronic scale to be detected is installed at the middle position of the frame, the positioning device for positioning the electronic scale is installed on the detection platform, the carrying device for carrying the weight group is installed at the upper part of the frame and is positioned above the detection platform, the weight group is hung on the carrying device, the photographing device for photographing a display screen of the electronic scale is also installed at the middle part of the frame, the control module for controlling the carrying device, the photographing device and the positioning device to work is installed at the lower part of the frame, the carrying device, the photographing device and the positioning device are all electrically connected with the control module, the carrying device comprises a carrying mechanism and a translation mechanism, and the translation mechanism is installed on the frame, the conveying mechanism is arranged on the translation mechanism, and the translation mechanism can drive the conveying mechanism to perform front-back translation motion above the detection platform.

Furthermore, the positioning device consists of two groups of electric positioning components, the electric positioning components are arranged at the bottom of the detection platform, and the two groups of electric positioning components are arranged in one-to-one correspondence with two adjacent edge surfaces of the electronic scale.

Preferably, the electric positioning assembly comprises a mounting frame, a belt transmission assembly, a driving motor, a positioning slide rail, a positioning slide block and a positioning arm, the mounting frame is mounted at the bottom of the detection platform, the positioning slide rail is mounted on the mounting frame, the positioning slide rail is mounted with the positioning slide block capable of sliding along the positioning slide rail, the positioning slide block is mounted with the positioning arm, the detection platform is provided with an elongated slot for the positioning arm to move, the positioning arm extends to the detection plane of the detection platform through the elongated slot, the mounting frame is further provided with the belt transmission assembly, the belt transmission assembly is connected with the driving motor, the driving motor is electrically connected with the control system, and the positioning slide block is fixedly connected with the belt.

Preferably, the translation mechanism comprises a translation table, a translation guide rail assembly, a translation nut, a translation lead screw and a translation motor, the translation table is installed on the rack through the translation guide rail assembly, the translation nut is fixed on the translation table, the translation motor is installed on the rack, the translation lead screw is connected to the translation motor through a coupler, and the translation lead screw is in threaded connection with the translation nut on the translation table.

Preferably, the carrying mechanism comprises a lifting motor, a weight hanging frame, a lifting screw rod, a screw rod fixing frame, a sliding rail assembly and a guiding sliding rod assembly, the lifting motor is arranged at the top of the translation table through a support, the lifting screw rod is connected to the rotating shaft of the lifting motor through a coupling, the tail end of the lifting screw rod is connected with the translation table through the screw rod fixing frame, the top of the weight hanging frame is connected with the translation table through the guiding sliding rod assembly, the lateral part of the weight hanging frame is connected with the translation table through the sliding rail assembly, the weight hanging frame can slide up and down relative to the translation table, the middle part of the weight hanging frame is in threaded connection with the lifting screw rod, a weight group is hung at the.

Preferably, the weight group comprises a main weight, a secondary weight and a secondary weight suspender, wherein a hanging pin is installed at the bottom of the weight hanging frame, the main weight is hung on the hanging pin through a hanging ring at the top of the main weight, a cavity capable of placing the secondary weight is arranged in the main weight, and the secondary weight is hung at the bottom of the weight hanging frame through the secondary weight suspender and is positioned in the cavity of the main weight.

Further, the photographing device is composed of a mounting frame, a CCD camera and a CCD light source, the CCD camera and the CCD light source are mounted on the frame through the mounting frame, the position of the CCD camera corresponds to the position of the display screen of the electronic scale, the CCD camera is connected with the control module through a driver matched with the CCD camera, and the CCD light source is connected with the control module.

Preferably, the periphery and the top of the rack are provided with light shielding plates, and the photographing device is surrounded by the light shielding plates to form an environment relative to a darkroom.

Furthermore, the control module is connected with a storage module, a display module and a button control module, and the display module and the button control module are both installed on the rack and are both connected with the control module.

The utility model has the advantages that:

1. the utility model discloses a carrying device, adjustable weight group front and back position and the gravity of examining time measuring to the cooperation device of shooing detects, can realize the different gravity of same position when detecting and exert pressure and measure, carries out different position multiple spot and detects, and detection efficiency is high, the testing result is accurate, guarantees the accuracy of data, reduces the error of testing result, avoids the too big condition of weighing data deviation.

2. A complete detection result management system is formed by the control module, the storage module and the display module, so that detection data can be recorded, stored, called and displayed, and data loss is avoided.

3. The detection process adopts control module to control, and carrying mechanism, translation mechanism and positioner homoenergetic are automatic to be moved, and it is efficient to carry, reduces the input of manpower.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a connection diagram of the structure of the detection platform of the present invention

FIG. 4 is a schematic view of the structure of the electric positioning assembly of the present invention;

FIG. 5 is a structural connection diagram of the carrying device and the weight set of the present invention;

FIG. 6 is a structural connection diagram of the carrying mechanism and the weight stack of the present invention;

FIG. 7 is a partial cross-sectional view of FIG. 6;

FIG. 8 is a connection explosion diagram of the secondary weight structure of the present invention;

fig. 9 is a schematic structural view of the photographing device of the present invention;

fig. 10 is a control block diagram of the present invention.

In the figure, an A-frame, a B-positioning device, a C-translation mechanism, a D-carrying mechanism, an E-photographing device, an F-weight group, a G-detection platform, an H-control module, an I-electronic scale, an A-1-shading plate, a B1-electric positioning component, a B1-1-mounting rack, a B1-2-positioning slide rail, a B1-3-positioning slide block, a B1-4-positioning arm, a B1-5-belt transmission component, a B1-6-driving motor, a C-1-translation table, a C-2-translation guide rail component, a C-3-translation nut, a C-4-translation screw rod, a C-5-translation motor, a D-1-lifting motor, The device comprises a D-2-weight hanging frame, a D-3-lifting screw rod, a D-4-screw rod fixing frame, a D-5-sliding rail assembly, a D-6-guide sliding rod, a D-7-hanging pin, an E-1-mounting frame, an E-2-CCD camera, an E-3-CCD light source, an F-1-main weight, an F-2-secondary weight, an F-3-secondary weight suspender, an F-4-hanging ring, an H-1-storage module, an H-2-display module and an H-3-button control module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in fig. 1-10, an electronic scale I unbalanced loading vision testing machine comprises a rack a, a weight group F, a carrying device, a detection platform G, a positioning device B, a photographing module and a control module H, wherein the detection platform G for bearing an electronic scale I to be detected is installed at the middle position of the rack a, the positioning device B for positioning the electronic scale I is installed on the detection platform G, the carrying device for carrying the weight group F is installed at the upper part of the rack a and located above the detection platform G, the weight group F is hung on the carrying device, the control module H for controlling the carrying device, the photographing device E and the positioning device B to work is installed at the lower part of the rack a, and the carrying device, the photographing device E and the positioning device B are all electrically connected with the control module H. In the detection process, the electronic scale I can be positioned by the positioning device B, the display screen position of the electronic scale I is ensured to be aligned with the photographing device E, then weight groups F are placed at different points of the weighing plane of the electronic scale I through the carrying device, and the photographing record of the display screen of the electronic scale I is carried out by the photographing device E every time the weights F-2 groups F are placed, so that the automatic control operation is realized, the manual carrying, positioning and other work of workers are not needed, the detection efficiency is improved, and the manual labor intensity is reduced.

Positioner B constitute by two sets of electronic positioning component B1, electronic positioning component B1 installs in testing platform GF's bottom, two sets of electronic positioning component B1 and electronic scale I's two adjacent edge face one-to-one installation, can fix a position electronic scale I's two adjacent edge faces through two electronic positioning component B1, guarantee that electronic scale I can put at accurate detection position, electronic positioning component B1 only fixes a position two orientations of electronic scale I, and do not play the clamping action, consequently, can not cause the damage to electronic scale I edge. The electric positioning component B1 comprises an installation rack E-1B1-1, a belt transmission component B1-5, a driving motor B1-6, a positioning slide rail B1-2, a positioning slide block B1-3 and a positioning arm B1-4, the installation rack E-1B1-1 is installed at the bottom of the detection platform G, a positioning slide rail B1-2 is installed on the installation rack E-1B1-1, a positioning slide block B1-3 capable of sliding along the positioning slide rail B1-2 is installed on the positioning slide rail B1-2, a positioning arm B1-4 is installed on the positioning slide block B1-3, a long groove for the positioning arm B1-4 to move is formed in the detection platform GF, the positioning arm B1-4 extends to the detection plane of the detection platform GF through the long groove, and the positioning slide block B1-3 moves to drive the positioning arm B1-4 to move, the position of the positioning arm B1-4 is adjusted to position the edge face of the electronic scale I. The mounting rack E-1B1-1 is also provided with a belt transmission component B1-5, the belt transmission component B1-5 is connected with a driving motor B1-6, the driving motor B1-6 is electrically connected with a control system, a positioning slide block B1-3 is fixedly connected with a belt of the belt transmission component B1-5, when the driving motor B1-6 is started, the belt drives the belt transmission component B1-5 to move, the belt drives a positioning slide block B1-3 to move along a positioning slide rail B1-2, a positioning arm B1-4 is driven by the positioning slide block B1-3 to move, the position of the positioning arm B1-4 is adjusted, in the adjusting process, the driving motor B1-6 is driven by a control module H, relevant size data of electronic scales I of various specifications are preset in the control module H, after the driving motor B1-6 is started, the control module H can send a corresponding instruction according to the related data, control the start and stop of the driving motor B1-6, ensure that the positioning arm B1-4 can reach a coordinate position matched with the size of the electronic scale I, ensure the accuracy of the position of the electronic scale I, control through the control module H, ensure that the positioning is more accurate than the positioning of a human hand, and reduce the investment of human cost.

The conveying device comprises a conveying mechanism D and a translation mechanism C, wherein the translation mechanism C is installed on the rack A, the conveying mechanism D is installed on the translation mechanism C, and the translation mechanism C can drive the conveying mechanism D to perform front-back translation motion above the detection platform G. The translation mechanism C comprises a translation table C-1, a translation guide rail component C-2, a translation nut C-3, a translation screw rod C-4 and a translation motor C-5, the translation table C-1 is installed on the rack A through the translation guide rail component C-2, the translation table C-1 can translate on the translation rail component to drive the carrying mechanism D to integrally translate, the position of the carrying mechanism D is adjusted so that the carrying mechanism D can place the weight group F at different positions of the weighing platform of the electronic scale I, the translation nut C-3 is fixed on the translation table C-1, the translation motor C-5 is installed on the rack A, the translation screw rod C-4 is connected to the translation motor C-5 through a coupler, and the translation screw rod C-4 is in threaded connection with the translation nut C-3 on the translation table C-1, when the detection position needs to be changed, the translation screw rod C-4 is driven to rotate through the rotation of the translation motor C-5 shaft, the translation table C-1 can translate back and forth above the detection platform G under the driving of the translation nut C-3, after the specified position is reached, the translation motor C-5 stops working, and then the weight group F is transported to the specified position through the transporting mechanism D. The conveying mechanism D consists of a lifting motor D-1, a weight hanging frame D-2, a lifting screw rod D-3, a screw rod fixing frame D-4, a slide rail assembly D-5 and a guide slide bar assembly D-6, wherein the lifting motor D-1 is arranged at the top of the translation table C-1 through a bracket, a rotating shaft of the lifting motor D-1 is connected with the lifting screw rod D-3 through a coupling, the tail end of the lifting screw rod D-3 is connected with the translation table C-1 through the screw rod fixing frame D-4, the screw rod fixing frame D-4 can stabilize the lifting screw rod D-3 to prevent the lifting screw rod D-3 from shaking in the action process to influence the detection, the top of the weight hanging frame D-2 is connected with the translation table C-1 through the guide slide bar assembly D-6, the side part is connected with a translation table C-1 through a slide rail component D-5, a weight hanging rack D-2 can slide up and down relative to the translation table C-1, the weight hanging rack D-2 can slide up and down through the synchronous use of a guide slide bar component D-6 and a slide rail component D-5, so that the weight hanging rack D-2 is more stable in the up-and-down sliding process, the middle part of the weight hanging rack D-2 is in threaded connection with a lifting screw rod D-3, a weight group F is hung at the bottom part, the lifting motor D-1 is connected with a control module H, when the detection is started, the control module H controls the lifting motor D-1 to be started, the lifting screw rod D-3 is driven to rotate through the rotation of the lifting motor D-1, when the lifting screw rod D-3 rotates, the weight hanging rack D-2 in threaded connection with the lifting screw rod D-3 translates downwards, the, when the point detection is completed and the detection position needs to be changed, the control module H controls the lifting motor D-1 to rotate reversely, the lifting screw rod D-3 rotates reversely to drive the weight hanging frame D-2 to lift the weight group F, after the weight hanging frame D-2 is lifted to the highest position, the control module H controls the translation motor C-5 to be started, the translation table C-1 translates under the action of the translation screw rod C-4, after the translation table C-1 reaches the designated position, the translation motor C-5 stops working, the control module H controls the lifting motor D-1 to be started again, the process that the carrying mechanism D carries the weight group F is repeated, the weight group F is carried to the changed detection position, and photographing detection is carried out again.

The weight group F consists of a main weight F-1, a secondary weight F-2 and a secondary weight suspender F-3, a hanging pin D-7 is arranged at the bottom of a weight hanging frame D-2, the main weight F-1 is hung on the hanging pin D-7 through a hanging ring F-4 at the top of the main weight F-1, a cavity for placing the secondary weight F-2 is arranged in the main weight F-1, the secondary weight F-2 is hung at the bottom of the weight hanging frame D-2 through the secondary weight suspender F-3 and is positioned in the cavity of the main weight F-1, in the detection process, in order to ensure the accuracy of the detection result, the detection with different masses needs to be carried out twice at the same position, during the detection, a conveying mechanism D firstly conveys the main weight F-1 to a weighing platform of the electronic scale I, after the main weight F-1 is placed on the weighing platform, the hanging ring F-4 on the main weight F-1 can be separated from the support of the hanging pin D-7, all the gravity of the main weight F-1 can be applied to the weighing platform, at the moment, the electronic display screen can be photographed by adopting the photographing device E, after the photographing detection of the main weight F-1 is completed, the control module H can send a corresponding instruction to control the lifting motor D-1 to continuously start, the weight hanging frame D-2 continuously moves downwards, the secondary weight suspender F-3 positioned at the bottom of the weight hanging frame D-2 can place the secondary weight F-2 at the bottom of the cavity of the main weight F-1, the secondary weight suspender F-3 can be separated from the bottom of the secondary weight F-2, the support of the secondary weight F-2 can disappear, and the gravity of the secondary weight F-2 can be completely superposed on the main weight F-1, the detected gravity is increased, preferably, the whole mass (including the mass of the hanging ring F-4) of the main weight F-1 is set to be 40kg, the mass of the secondary weight F-2 is set to be 1kg, the screen information of the qualified electronic scale I is 40g (g is the acceleration of free falling body) in the first detection, and the screen information of the qualified electronic scale I is 41g (g is the acceleration of free falling body) in the second detection when the secondary weight F-2 is placed.

The photographing device E consists of a mounting rack E-1, a CCD camera E-2 and a CCD light source E-3, the CCD camera E-2 and the CCD light source E-3 are mounted on the frame A through the mounting rack E-1, the position of the CCD camera E-2 corresponds to the position of a display screen of the electronic scale I, the CCD camera E-2 is mounted on the mounting rack E-1 through a hinge, the angle adjustment of the CCD camera E-2 can be realized, the position of the CCD camera E-2 is always aligned with the position of the display screen of the electronic scale I, the CCD camera E-2 is connected with a control module H through a matched driver, the CCD light source E-3 is connected with the control module H, in the detection process, after the weight is placed, the display screen of the electronic scale I displays corresponding data, the control module H sends a corresponding instruction to control the CCD camera E-2 to perform, the control module H identifies the photographed data through imaging identification software (the conventional identification software can be used for identification), the identification software transmits the numerical value of the data back to the control module H, the qualified numerical value range of the corresponding electronic scale I is preset in the control module H, the control module H judges whether the numerical value detected each time meets the requirement, if the numerical value is in the preset range, the electronic scale I is qualified, if the numerical value exceeds the preset range, the electronic scale I is unqualified, in addition, an alarm device consisting of light and a loudspeaker is further connected to the control module H, and if the electronic scale is unqualified, the control module H controls the alarm device to automatically alarm. And the photographing information is uploaded to the control module H for recording, photographing recording is carried out on the CCD camera E-2 during each detection, and after the equipment is started, the control module H can control the corresponding CCD light source E-3 to be turned on at the same time to carry out light supplementing on the CCD camera E-2 during photographing. The periphery and the top of the frame A are respectively provided with a light shielding plate A-1, and the photographing device E is surrounded by the light shielding plates A-1 to form an environment relative to a darkroom, so that the photographing definition is ensured, and the influence of external stray light on the CCD camera E-2 is avoided.

The control module H is also connected with a storage module H-1, a display module H-1 and a button control module H-3, and the display module H-1 and the button control module H-3 are both installed on the rack A and are both connected with the control module H. The display module H-1 adopts a touch screen, and workers can perform data display, calling and other operations through the touch screen. After the CCD camera E-2 takes a picture, corresponding data information can be uploaded to the storage module H-1 through the control module H, unified management is achieved, when corresponding detection results need to be used in follow-up work, workers can call and display through the display module H-1, a complete detection result management system is formed through the control module H, the storage module H-1 and the display module H-1, the detection results are stored and managed in a unified mode, data loss can be effectively avoided, and completeness of the detection results is guaranteed. The button control module H-3 is arranged, and a worker can start, stop, debug and the like on the equipment.

The utility model discloses a carrying device, position around the adjustable weight group F and the gravity of examining time measuring, and the cooperation device E of shooing detects, can realize the different gravity of same position during the detection and exert pressure and measure, carry out different position multiple spot detections, high detection efficiency, the testing result is accurate, guarantee the accuracy of data, reduce the error of testing result, avoid weighing the too big condition of data deviation, and, through control module H, a complete testing result management system is constituteed to storage module H-1 and display module H-1, can record the testing data, store, call and show, avoid the data loss. The detection process adopts control module H to control, and carrying mechanism D, translation mechanism C and positioner B homoenergetic are automatic to be moved, and it is efficient to carry, reduces the input of manpower.

The utility model discloses a working process:

during detection, the electronic scale I is placed at a designated position, then equipment is started, the control module H sends a corresponding instruction to control the driving motor B1-6 to start, the driving motor B1-6 drives the electric positioning component B1 to move to position the electronic scale I, the position of the electronic scale I is adjusted, then the driving motor B1-6 stops moving, the control module H controls the lifting motor D-1 to rotate forwards, the main weight F-1 is placed on a weighing platform of the electronic scale I, the CCD camera E-2 is started to photograph a display screen of the electronic scale I, meanwhile, photographing information is directly displayed on the display module H-1 in the process, relevant data information is directly uploaded to the storage module H-1 through the control module H and stored, a worker judges whether the information is the same as the gravity of the main weight F-1 according to the display information, and sequentially judging whether the electronic scale I is qualified or not, if not, directly stopping detection, if so, continuing to move the weight hanging frame D-2 downwards, placing the secondary weight F-2 at the bottom of the cavity of the main weight F-1 by the secondary weight suspender F-3 positioned at the bottom of the weight hanging frame D-2, separating the secondary weight suspender F-3 from the bottom of the secondary weight F-2, eliminating the support of the secondary weight F-2, completely superposing the gravity of the secondary weight F-2 on the main weight F-1, increasing the detected gravity, repeating the photographing action and the data storage process, and judging whether the electronic scale I is qualified or not by a worker according to display information.

When the detection position of the electronic scale I needs to be changed, the control module H sends a corresponding operation instruction to control the lifting motor D-1 to drive the conveying mechanism D to reset, and simultaneously, the translation motor C-5 is started to drive the conveying mechanism D to integrally translate to the position above the detection position, and then the detection action is repeated.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. An electronic scale unbalance loading vision testing machine is characterized by comprising a rack, a weight group, a conveying device, a detection platform, a positioning device, a photographing module and a control module, wherein the detection platform for bearing an electronic scale to be tested is arranged in the middle of the rack, the detection platform is provided with the positioning device for positioning the electronic scale, the conveying device for conveying the weight group is arranged at the upper part of the rack and is positioned above the detection platform, the weight group is hung on the conveying device, the photographing device for photographing a display screen of the electronic scale is also arranged in the middle of the rack, the control module for controlling the conveying device, the photographing device and the positioning device to work is arranged at the lower part of the rack, the conveying device, the photographing device and the positioning device are all electrically connected with the control module, and the conveying device comprises a conveying mechanism and a translation mechanism, the translation mechanism is installed on the frame, and the carrying mechanism is installed on the translation mechanism, and the translation mechanism can drive the carrying mechanism to do the back and forth translation action above the detection platform.

2. The electronic scale unbalance loading vision testing machine of claim 1, characterized in that: the positioning device is composed of two groups of electric positioning components, the electric positioning components are arranged at the bottom of the detection platform, and the two groups of electric positioning components are arranged in one-to-one correspondence with two adjacent edge surfaces of the electronic scale.

3. The electronic scale unbalance loading vision testing machine of claim 2, characterized in that: the electric positioning assembly comprises a mounting frame, a belt transmission assembly, a driving motor, a positioning slide rail, a positioning slide block and a positioning arm, the mounting frame is mounted at the bottom of the detection platform, the positioning slide rail is mounted on the mounting frame, the positioning slide rail is mounted with the positioning slide block capable of sliding along the positioning slide rail, the positioning arm is mounted on the positioning slide block, an elongated slot for the positioning arm to move is formed in the detection platform, the positioning arm extends to the detection plane of the detection platform through the elongated slot, the belt transmission assembly is further mounted on the mounting frame and is connected with the driving motor, the driving motor is electrically connected with a control system, and the positioning slide block is fixedly connected with the belt of the belt.

4. The electronic scale unbalance loading vision testing machine of claim 1, characterized in that: the translation mechanism include translation platform, translation guide rail subassembly, translation nut, translation lead screw and translation motor, the translation platform pass through translation guide rail unit mount in the frame, the translation bench is fixed with the translation nut, installs translation motor in the frame, there is the translation lead screw translation motor through the coupling joint on the translation motor, translation lead screw and the translation nut threaded connection on the translation platform.

5. The electronic scale unbalance loading vision testing machine of claim 4, characterized in that: the carrying mechanism comprises elevator motor, weight hanging frame, lift lead screw, lead screw mount, sliding rail set spare and direction slide bar subassembly, elevator motor pass through the support mounting at translation bench top, there is the lift lead screw through the coupling joint in the elevator motor pivot, the lift lead screw end is connected with the translation platform through the lead screw mount, the weight hanging frame top is connected with the translation platform through direction slide bar subassembly, the lateral part passes through sliding rail set spare and is connected with the translation platform, the weight hanging frame can slide from top to bottom relative translation platform, weight hanging frame middle part and lift lead screw threaded connection, the bottom is hung and is equipped with the weight group, elevator motor is connected with control module.

6. The electronic scale unbalance loading vision testing machine of claim 5, characterized in that: the weight group comprises main weight, inferior weight suspender, and the dress pin of hanging is installed to weight dress frame bottom, and the dress of hanging at main weight through the dress ring of hanging at its top is hung on the dress pin, is provided with the cavity that can place inferior weight in the main weight, inferior weight hangs in weight dress frame bottom through inferior weight suspender to be located main weight cavity.

7. The electronic scale unbalance loading vision testing machine of claim 1, characterized in that: the photographing device is composed of a mounting frame, a CCD camera and a CCD light source, the CCD camera and the CCD light source are mounted on the frame through the mounting frame, the position of the CCD camera corresponds to the position of a display screen of the electronic scale, the CCD camera is connected with the control module through a driver matched with the CCD camera, and the CCD light source is connected with the control module.

8. The electronic scale unbalance loading vision testing machine of claim 7, characterized in that: the periphery and the top of the frame are provided with light screens, and the light screens surround the photographing device to form an environment relative to a darkroom.

9. The electronic scale unbalance loading vision testing machine of claim 1, characterized in that: the control module on still be connected with storage module, display module and button and control the module, display module and button control the module and all install in the frame, and all be connected with control module.