CN114619201A - Method for assembling motor starter - Google Patents

Abstract

The utility model provides an assembly method of motor starter, first insert the test power supply with basic unit, promote the temperature compensation mechanism of basic unit to stop at the dropout position again, measure the distance that a plurality of bimetallic strips go up the dropout position respectively on the basic unit again, again according to the distance that a plurality of bimetallic strips that record reach the dropout position respectively, cut respectively on the assembly, carry out the dropout operation and measure in real time to every concrete motor starter's basic unit, cut the assembly based on the concrete of measurement, high efficiency and accuracy, the matching degree of assembly and motor starter is high, in order to guarantee the qualification of product.

Description

Method for assembling motor starter

Technical Field

The invention relates to the field of automation, in particular to an assembling method of a motor starter.

Background

The motor starter is used for assisting the motor to start, and also has fault protection functions of overload, open-phase, short circuit and the like, the motor starter is provided with a bimetallic strip, and when the overload and open-phase faults occur, the bimetallic strip can push a guide plate to break a circuit connected with the motor, so that the motor is protected.

However, the motor starter usually corresponds to the three-phase circuit and is provided with three bimetallic strips, the three bimetallic strips need to be assembled respectively and then installed in the motor starter, errors exist among the three bimetallic strips, the conditions of different motor starters are different, if the guide plate cannot be matched with the three bimetallic strips at the same time, when any phase fails, the corresponding bimetallic strip may delay or cannot be contacted with the guide plate, and the motor starter cannot work stably.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the assembling method of the motor starter, which has high accuracy and high assembling efficiency.

In order to realize the purpose, the invention adopts the following technical scheme:

a method of assembling a motor starter comprising the steps of:

step S0: connecting the basic component 6 into a test power supply;

step S1: pushing the temperature compensation mechanism 4 of the base part 6 to stop at the tripping position A;

step S2: measuring the distances from a plurality of bimetallic strips on the base part 6 to the tripping positions A respectively;

step S31: the plurality of bimetal strips are cut on the mounting member 7 according to the distances from the trip positions a to the trip positions S2, respectively.

Preferably, in the step S2, the CCD vision measuring module captures the trip position a and the positions of the multiple bimetallic strips respectively, and calculates the distance from each of the multiple bimetallic strips to the trip position a, and then calculates the distance between adjacent bimetallic strips according to the distance from each of the multiple bimetallic strips to the trip position a.

Preferably, two CCD vision measuring modules are included, one of which is used to photograph the base member 6 from the top side and capture the trip position a, and the other of which is used to photograph the base member 6 from the horizontal side and capture the positions of the plurality of bimetal strips, respectively.

Preferably, the step S2 includes the steps of:

step S23: directly shooting the top surface of the base part 6 from the top side and capturing the tripping position A;

step S24: photographing the base member 6 from the horizontal side, and capturing the positions of the plurality of bimetal strips, respectively;

step S25: respectively calculating the distances from the three bimetallic strips to a tripping position A;

step S26: and respectively calculating the distance between two adjacent bimetallic strips according to the data measured in the step S25, wherein the absolute value obtained by subtracting the distances from the tripping positions A of the two adjacent bimetallic strips is the distance between the two adjacent bimetallic strips.

Preferably, the assembly part 7 is driven by the cutting and conveying module to move to an initial position corresponding to the trip position a in step S31, and then the assembly part moves for multiple times, where the distance of each movement is the distance between the multiple bimetallic strips measured in step S2.

Preferably, the three bimetallic strips are a first bimetallic strip B, a second bimetallic strip C and a third bimetallic strip D in sequence along the direction away from the trip position a, in step S31, the assembly component 7 is driven to move three times by the cutting and conveying module, and the distance between the two last times of movement is the distance from the first bimetallic strip B to the second bimetallic strip C and the distance from the second bimetallic strip C to the third bimetallic strip D.

Preferably, the step S0 is preceded by the steps of:

step S10: the first power supply device connects the base part 6 to a first test power supply;

step S11: the first tripping part 1232 pushes the temperature compensation mechanism 4 until the base part 6 is tripped, and a tripping position A is obtained according to the position of the first tripping part 1232;

step S12: the touch rod 1241 sequentially pushes the bimetallic strips, and when the touch rod 1241 rotates, the positions of the corresponding bimetallic strips are respectively recorded;

step S13: calculating the distances from the bimetallic strips to the tripping position A according to the step S11 and the step S12;

step S15: the reset device 130 interlocks the operating mechanism 5 of the base member 6.

Preferably, in step S13, when the touch bar 1241 contacts the bimetal, the rotation amplitude of the touch bar 1241 is also detected.

Preferably, the automatic assembling device further comprises a cutting and feeding module, wherein the cutting and feeding module is used for sequencing the assembling components 7 and then sending the sequenced assembling components to the cutting module.

Preferably, a cutting transfer module is further included, which transfers the cut assembly parts 7 to the corresponding base assembly.

According to the assembling method of the motor starter, in the assembling process of the motor starter, tripping operation and measurement are carried out on the basic part of each specific motor starter in real time, the assembling part is cut based on the measurement, the efficiency is high, the accuracy is high, the matching degree of the assembling part and the motor starter is high, and the product is qualified.

Drawings

FIG. 1 is a motor starter for assembly in accordance with an embodiment of the present invention;

fig. 2 is a bimetal for measurement according to an embodiment of the present invention;

FIG. 3 is a pre-cut and post-cut assembly of an inventive embodiment of the present invention;

FIG. 4 is a plan view of a dynamic cutting apparatus according to an embodiment of the present invention;

FIG. 5 is a flow chart of a dynamic cutting apparatus according to an embodiment of the present invention;

FIG. 6 is a plan view of a measurement module according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a measurement module according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a first measuring device according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a first measurement module according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a second measuring device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a resetting device according to an embodiment of the invention;

FIG. 12 is a schematic structural diagram of a measurement transfer apparatus according to an embodiment of the present invention;

FIG. 13 is a plan view of a cutting module according to an embodiment of the present invention;

FIG. 14 is a schematic view of a cutting module according to an embodiment of the present invention;

FIG. 15 is a schematic structural view of a cutting conveyor according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a cutting and feeding device according to an embodiment of the present invention.

Detailed Description

As shown in fig. 4-5, the dynamic cutting apparatus of the present invention includes a measuring module 100, a cutting module 200, and a control unit respectively connected to the measuring module 100 and the cutting module 200, wherein the measuring module 100 includes a first measuring device 120 and a second measuring device 140 respectively used for measuring the basic component 6, the basic component 6 is measured by the first measuring device 120 and then measured by the second measuring device 140, and the control unit controls the cutting module 200 to cut the assembly component 7 according to the average value of the data measured by the first measuring device 120 and the data measured by the second measuring device 140.

The dynamic cutting equipment provided by the invention performs real-time cutting according to the data measured by the measuring module 100, so that the plurality of assembling parts 7 can correspond to the plurality of basic parts 6 one by one after being cut respectively, the assembling parts 7 and the basic parts 6 can be assembled conveniently, the assembling accuracy can be improved, the dynamic cutting equipment has the characteristic of high automation degree, and the basic parts 6 have double guarantee after being detected twice by the first measuring device 120 and the second measuring device 140, so that the measured data are more accurate.

The following description will further describe the embodiments of the dynamic cutting apparatus according to the present invention with reference to the embodiments shown in fig. 1 to 16. The base part 6 and the fitting part 7 of the present embodiment are intended to be fitted as a motor starter, but the dynamic cutting apparatus of the present invention is not limited to the motor starter and the description of the following embodiments.

As shown in fig. 4-5, the dynamic cutting apparatus of the present invention includes a measuring module 100, a cutting module 200, and a control unit connected to the measuring module 100 and the cutting module 200, wherein the measuring module 100 includes a first measuring device 120 and a second measuring device 140 for measuring the basic components 6, respectively, the basic components 6 are measured by the first measuring device 120 and then measured by the second measuring device 140, and the control unit controls the cutting module 200 to cut the assembled components 7 according to the average value of the data measured by the first measuring device 120 and the data measured by the second measuring device 140.

The control unit is preferably a PLC controller, and the PLC controller controls the actions of the measuring module 100 and the cutting module 200, obtains the measurement data of the measuring module 100, and controls the cutting module 200 to cut. The PLC is a common automatic controller, and the actions of each mechanism controlled based on the PLC belong to the prior art in the field and are not described again.

As shown in fig. 1 to 3, the base part 6 includes three bimetal strips respectively mounted on the starter of the motor, and a temperature compensation mechanism 4 disposed at one side of the three bimetal strips, the cut assembly part 7 is located between the bimetal strips and the temperature compensation mechanism 4, and the bimetal strips push the cut assembly part 7 to drive the temperature compensation mechanism 4, so that the distance relationship between the three bimetal strips and the temperature compensation mechanism 4 is measured, and then the assembly part 7 is cut according to the distance relationship.

Specifically, the three bimetallic strips are a first bimetallic strip B, a second bimetallic strip C and a third bimetallic strip D from left to right, when measuring, the measuring module 100 first pushes the temperature compensation mechanism 4, the operating mechanism 5 of the basic component 6 is pushed by the temperature compensation mechanism 4 until the operating mechanism 5 is just tripped, the position of the temperature compensation mechanism 4 is the tripping position A at the moment, then the distances from the three bimetallic strips to the tripping position A are respectively measured, the distance needs to be matched after the assembly part 7 is cut, so that the cut assembly part 7 can push the temperature compensation mechanism 4 to be still positioned at the tripping position A, when any bimetallic strip is bent, the temperature compensation mechanism 4 can be pushed through the assembling part 7, and then the operating mechanism 5 is tripped, so that the motor starter is tripped, and the motor is protected. Because the tripping positions of all products are different, the invention improves the assembly accuracy of the products by real-time measurement and avoids excessive adjustment work after subsequent assembly. In this embodiment, a plurality of parts are mounted on each base unit 6, so that the distances between the three bimetal strips of each base unit 6 and the respective distances from the three bimetal strips to the trip position a are different.

The assembly part 7 is two integrated guide plates, the two guide plates are connected through three connecting rods 8 respectively, the three connecting rods 8 are required to be divided into two parts in sequence when the cutting module 200 is used for cutting, each connecting rod 8 becomes two sections of driving rods 9, the two sections of driving rods 9 are connected to the respective guide plates, and the assembly part 7 also becomes two independent guide plates.

A cutter for being directed at connecting rod 8 cuts, its thickness is equal to the bimetallic strip, the edge of a knife after making the cutting also equals with the thickness of bimetallic strip, connecting rod 8 cuts into behind two sections actuating levers 9, when the cover is on corresponding bimetallic strip, the bimetallic strip can contact with the actuating lever 9 of both sides respectively, make the bimetallic strip bend to one side because of overloading, or when inclining once side bending in opposite directions because of lacking, can both promote actuating lever 9, rethread actuating lever 9 drives the baffle and makes operating device dropout, the open circuit, guarantee to have reliable protect function.

Specifically, after the cutting, the one end of two baffles cooperates with temperature compensation mechanism 4 respectively, and the other end of two baffles is equipped with three actuating lever 9 that is used for cooperating the bimetallic strip respectively, and three actuating lever 9 on one of them baffle sets up the one side at three bimetallic strip respectively, and three actuating lever 9 on another baffle sets up the opposite side at three bimetallic strip respectively, and arbitrary bimetallic strip is crooked to one side, can promote this side actuating lever 9 and drive the baffle that corresponds, makes operating device 5 dropout, and in the same way, arbitrary bimetallic strip is crooked to the opposite side, drives another baffle and makes operating device 5 dropout.

As shown in fig. 4 to 5, the dynamic cutting apparatus of this embodiment further includes a first conveyer 310 and a second conveyer 320, which are adjacently disposed, the measuring module 100 and the cutting module 200 are disposed on one side of the first conveyer 310 and the second conveyer 320, the conveying directions of the first conveyer 310 and the second conveyer 320 are opposite, the left ends of the first conveyer 310 and the second conveyer 320 are respectively used for conveying the base component 6, the right ends of the first conveyer 310 and the second conveyer 320 are respectively used for conveying the total workpiece tray 330, and each total workpiece tray 330 can simultaneously fix the base component 6 and the assembling component 7, i.e., one side of each total workpiece tray 330 is used for fixing the base component 6, and the other side of the total workpiece tray 330 is used for fixing the assembling component 7 corresponding to the base component 6.

The first conveying device 310 first conveys the unmeasured basic component 6 to one side of the measuring module 100, so that the measuring module 100 takes away the unmeasured basic component 6 and measures:

if the basic component 6 is a basic component 6 which is qualified in measurement, when the total workpiece tray 330 passes through the measurement module 100, the measurement module 100 puts the basic component 6 which is qualified in measurement into the total workpiece tray 330, the total workpiece tray 330 is sent to the cutting module 200 through the first conveying device 310, the cutting module 200 puts the corresponding assembly component 7 after cutting into the total workpiece tray 330, after the operation of the subsequent stations is finished, when the total workpiece tray 330 passes through the second conveying device 320, the second conveying device 320 is provided with a pusher dog 321, the total workpiece tray 330 is sent back to the first conveying device 310 through the pusher dog 321, and the total workpiece tray 330 returns to the preset initial position;

if the basic component 6 is measured to be unqualified, the measuring module 100 puts the unqualified basic component 6 into the second conveyer 320, but does not put the total workpiece tray 330, and discharges the unqualified basic component 6 through the second conveyer 320.

In this embodiment, the base components 6 and the assembling components 7 corresponding to each other are respectively fixed on the total workpiece tray 330, and then are conveyed to subsequent stations through the first conveying device 310, so that the automatic detection and assembly can be performed, the manual operation can be performed, and the use is very flexible.

It is understood that the measured base component 6 may be first positioned, so that the cut assembling component 7 is directly assembled on the base component 6, rather than being conveyed to other subsequent stations by the first conveying device 310, whether the assembling component 7 is to be installed on the base component 6 or not, and the present embodiment is not particularly limited, and falls within the protection scope of the present invention. Of course, the second conveyor 320 may be omitted and the rejected products may be discharged by other means, such as into a reject bin.

As shown in fig. 6 to 7, the measuring module 100 of the present embodiment includes a measuring conveyer 150, and a measuring transfer device 110, a first measuring device 120, a reset device 130, and a second measuring device 140, which are sequentially arranged along a conveying direction of the measuring conveyer 150.

The measurement transfer device 150 of the present embodiment is a splitter, which includes a rotatable turntable 151, and a non-rotatable disk 152 disposed above the turntable 151, and four measurement trays 153 for fixing the base member 6 are respectively fixed to the turntable 151 to rotate together;

the measuring and transferring device 110 is arranged at one side of the measuring and transferring device 150 close to the first transferring device 310, the measuring and transferring device 110 can take the unmeasured basic components 6 in the first transferring device 310 in sequence and place the basic components 6 on the measuring tray 153 in sequence, the measuring and transferring device 150 can drive a plurality of basic components 6 to pass through the first measuring device 120, the resetting device 130 and the second measuring device 140 in sequence, and finally the measuring and transferring device 110 places the qualified basic components 6 on the first transferring device 310 and places the unqualified basic components 6 on the second transferring device 320;

since the operating mechanism 5 of the base unit 6 is tripped during the measurement process of the first measuring device 120, the resetting device 130 is used to re-trip the operating mechanism 5 of the base unit 6, which facilitates the subsequent measurement process of the second measuring device 140.

Since the first transmission device 310 can provide and take away the base part 6 for the measurement module 100 at the same time, and the measurement module 100 of the embodiment is matched with the first transmission device 310 through the divider, only one measurement transmission device 110 is needed, after the measurement transmission device 110 takes away the base part 6 from the first transmission device 310, the divider rotates for a circle and returns to the measurement transmission device 110, so that the measurement transmission device 110 can directly put back the base part 6 to the first transmission device 310, thereby not only saving the cost, but also reducing the volume. It is understood that the measuring module 100 may also be provided with a separate device for providing the base component 6 instead of providing the base component 6 through the first conveying device 310, which falls within the protection scope of the present invention.

Fig. 8 to 9 and fig. 10 respectively show a first measuring device 120 and a second measuring device 140, in this embodiment, the first measuring device 120 and the second measuring device 140 respectively perform two measurements, in this embodiment, the first measuring device 120 and the second measuring device 140 have different measuring manners, and the first measuring device 120 and the second measuring device 140 are respectively used for determining a trip position a of the temperature compensating mechanism 4, and then measuring distances from three bimetallic strips to the trip position a.

The first measuring device 120 and the second measuring device 140 respectively include a power supply device and an operating device, the power supply device connects the base unit 6 to the test power supply, and the operating device pushes the base unit 6 to disconnect the test power supply to determine the tripping position a. When the first measuring device 120 and the second measuring device 140 are used for measuring, the base part 6 is connected to a test power supply through respective power supply devices, then the temperature compensation mechanisms 4 are respectively pushed through respective operating devices, the operating mechanisms 5 of the base part 6 are pushed through the temperature compensation mechanisms 4 until the operating mechanisms 5 are just tripped, the test power supply of the power supply devices is disconnected by the base part 6 due to tripping at the moment, the position of the operating devices at the moment is recorded according to signals of disconnection of the power supply devices, and the position of the operating devices is determined because the temperature compensation mechanisms 4 are pushed through the operating devices, so that the position of the temperature compensation mechanisms 4 at the moment can be determined, namely, the tripping position A.

Specifically, the first measurement device 120 includes a first power supply device, a first operation device and a first measurement module, where the first power supply device and the first operation device are the power supply device and the operation device of the first power supply device, the second measurement device 140 includes a second power supply device, a second operation device and a second measurement module, and the second power supply device and the second operation device are the power supply device and the operation device of the second power supply device;

the first power supply device and the second power supply device are respectively used for connecting the basic component 6 to a test power supply and measuring a current signal passing through the basic component 6, and the basic component 6 can be used for conducting the test power supply before tripping and disconnecting the test power supply after tripping;

the first operating device and the second operating device are respectively used for pushing the temperature compensation mechanism 4 until the temperature compensation mechanism 4 is pushed to drive the operating mechanism 5 to trip;

but the first measuring module and the second measuring module are different, the measuring purposes of the first measuring module and the second measuring module are the same, but the measuring methods are different, the first measuring module carries out initial inspection through a mechanical contact type measuring method and judges whether the product is qualified, and the second measuring module carries out re-inspection through a visual capture measuring method. Through two measurements, the distance from each bimetallic strip to the tripping position A corresponds to two sets of data, and the cutting module 200 is controlled to cut according to the average value of the two sets of data.

The first measurement module and the second measurement module will now be described with reference to specific configurations of the first measurement device 120 and the second measurement device 140, respectively.

As shown in fig. 8 to 9, the first measuring device 120 of the present embodiment includes a first power supply device, a first operating device, and a first measuring module, and the first measuring module adopts a mechanical contact measuring method.

The first power supply device comprises a first inner movement mechanism 1211 and a first outer movement mechanism 1221 which are arranged at intervals, a plurality of first inner probes 1212 are arranged on the first inner movement mechanism 1211, a plurality of first outer probes 1222 are arranged on the first outer movement mechanism 1221, the plurality of first inner probes 1212 and the plurality of first outer probes 1222 are respectively connected to a first test power supply (not shown in the figure), the measurement transmission device 150 can drive the measurement tray 153 provided with the base component 6 to move between the first inner movement mechanism 1211 and the first outer movement mechanism 1221, the first inner movement mechanism 1211 and the first outer movement mechanism 1221 can respectively drive the plurality of first inner probes 1212 and the plurality of first outer probes 1222 thereon to move inwards, the plurality of first inner probes 1212 are driven by the first inner movement mechanism 1211 to be in contact with a connection terminal at one end of the base component 6, the plurality of first outer probes 1222 are driven by the first outer movement mechanism 1221 to be in contact with a connection terminal at the other end of the base component 6, the main circuit of the base part 6 is switched into the first test power supply. In the present embodiment, when the base unit 6 is assembled, the base unit 6 is already in the engaged state, and the main circuit of the base unit 6 is in the closed conducting state, so that a step similar to the resetting device 130 is omitted here, and a device similar to the resetting device 130 may be provided here to ensure that the main circuit of the base unit 6 is in the closed conducting state, but this is not limited specifically here.

The first operating device is arranged above the first power supply device and comprises a first disengaging part 1232, the first disengaging part 1232 is arranged on the first upper moving mechanism 1231, after the base part 6 is connected with a first test power supply, the first upper moving mechanism 1231 can drive the first disengaging part 1232 to move downwards to one side of the temperature compensation mechanism 4 of the base part 6, then the first upper moving mechanism 1231 can drive the first disengaging part 1232 to push the temperature compensation mechanism 4 until the temperature compensation mechanism 4 pushes the operating mechanism 5 of the base part 6 to disengage, the connected first test power supply can be disconnected when the base part 6 is disengaged, when the first test power supply is disconnected, the first upper moving mechanism 1231 stops, and at the moment, the position of the first disengaging part 1232 is the disengaging position a.

The first measuring module is also arranged on the first upper moving mechanism 1231, and the first measuring module and the first operating device are both arranged on the first upper moving mechanism 1231, so that when the first upper moving mechanism 1231 corresponds to the position of the tripping position a, as long as the first upper moving mechanism 1231 continues to move to the position of the first bimetal sheet B, the distance from the first bimetal sheet B to the tripping position a can be more conveniently measured, the steps are simplified, and the calculation is facilitated.

The first measuring module comprises a rotatable touch rod 1241 and a displacement sensor 1242 for measuring the rotation amplitude of the touch rod 1241, the first upper movement mechanism 1231 can drive the touch rod 1241 to move relative to the base part 6, so that the touch rod 1241 sequentially touches a plurality of bimetallic strips on the base part 6, and meanwhile, the rotation amplitude of the touch rod 1241 is detected through the displacement sensor 1242, and the touch rod 1241 is detected to touch the bimetallic strips. In the present embodiment, the touch detection is performed by detecting the rotation of the touch rod 1241 by the displacement sensor 1242, but may be performed by other non-rotational methods.

When the touch rod 1241 rotates when contacting with the bimetallic strip, the control unit records the position of the touch rod 1241, that is, the position of the bimetallic strip, when the displacement sensor 1242 detects that the touch rod 1241 rotates, the control unit records the position of the touch rod 1241 3 times when the touch rod 1241 rotates, because the first measuring module and the first operating device are both arranged on the first upper moving mechanism 1231, the starting position of the touch rod 1241 is the trip position a, and the respective distances from the three bimetallic strips to the trip position a are respectively calculated according to the difference between the positions of the three bimetallic strips and the trip position a, or the respective distances from the three bimetallic strips to the trip position a are obtained according to the moving distance of the first upper moving mechanism 1231 after the trip position a.

The concrete structure is as follows:

the first measuring module comprises a first upper movement mechanism 1231, a touch rod 1241 rotatably arranged on the first upper movement mechanism 1231 and a displacement sensor 1242 arranged on the first upper movement mechanism 1231 and matched with the touch rod 1241, a spring 1243 used for limiting the touch rod 1241 is arranged on the first upper movement mechanism 1231, the spring 1243 can prevent the touch rod 1241 from rotating when not contacting with a bimetallic strip, the bimetallic strip overcomes the action of the spring 1243 to push the touch rod 1241 to rotate when contacting with the touch rod 1241, and the spring 1243 drives the touch rod 1241 to reset after the bimetallic strip is separated from the touch rod 1241.

The first upper movement mechanism 1231 of this embodiment includes a servo motor and a corresponding connecting member, and is indirectly driven by the servo motor to move the first measurement module and the first operating device, and when the displacement sensor 1242 detects that the touch rod 1241 rotates, the position is recorded by the servo motor, and then the distance relationship is calculated by using a plurality of position relationships. It will be appreciated that other means, such as sensors, etc., may be used instead of servomotors to record position, and are not specifically limited herein.

The displacement sensor 1242 of this embodiment is a laser sensor, and when touching pole 1241 contacted with the bimetallic strip, displacement sensor 1242 still detected touching pole 1241 pivoted range, if laser sensor detected touching pole 1241 pivoted range too big, exceeded preset threshold value, then proved this bimetallic strip installation insecure, or the distance between the bimetallic strip is too big, and corresponding base part 6 is nonconforming product, sent to second conveyer 320 through measuring transmission device 110 and discharges.

The measurement steps of the first measurement device 120 of this embodiment are:

step S10: the first power supply device connects the base part 6 to a first test power supply;

step S11: the first tripping part 1232 pushes the temperature compensation mechanism 4 until the base part 6 is tripped, and a tripping position A is obtained according to the position of the first tripping part 1232;

step S12: the touch rod 1241 sequentially pushes the bimetallic strips, and when the touch rod 1241 rotates, the positions of the corresponding bimetallic strips are respectively recorded;

step S13: calculating the distances from the plurality of bimetallic strips to the tripping position A according to the steps S11 and S12, wherein the distances from the first bimetallic strip B, the second bimetallic strip C and the third bimetallic strip D to the tripping position A are Dab, Dac and Dad respectively, and the distance Dbc from the first bimetallic strip B to the second bimetallic strip C and the distance Dcd from the second bimetallic strip C to the third bimetallic strip D;

step S14: the first power supply means and the first operating means are reset and the base unit 6 is moved away from the first power supply means.

Fig. 10 shows a second measurement device 140, a second power supply device, a second operation device, and a second measurement module of the present embodiment, where the second measurement module is a measurement method of CCD vision capture, and the measurement method of CCD vision capture is more intuitive and accurate, and the second measurement module can make up for the problem that the measurement of the first measurement module is inaccurate.

Because the uncertain factors of the first measuring module are more, a certain error exists in the recording position of the servo motor, and the recording instruction is issued according to the displacement sensor 1242, the measuring result is easy to be inaccurate. However, the temperature compensation mechanism 4 is rotatable, and when the second measurement module shoots the trip position a of the temperature compensation mechanism 4, the measurement result is also inaccurate, but in the measurement process of the first measurement module, the first measurement module is always in contact with the temperature compensation mechanism 4, so the measurement structure is more accurate than the CCD vision capture, and the two are complementary to each other, and the accuracy of the measurement result is ensured. The second power supply device and the first power supply device have the same structure and working principle, and the second operating device and the first operating device have the same structure and working principle.

The second power supply device includes a second inner movement mechanism 1411 and a second outer movement mechanism 1421 which are arranged at intervals, a plurality of second inner probes 1412 are arranged on the second inner movement mechanism 1411, a plurality of second outer probes 1422 are arranged on the second outer movement mechanism 1421, the plurality of second inner probes 1412 and the plurality of second outer probes 1422 are respectively connected to a second test power supply (not shown in the figure), the measurement transmission device 150 can drive the measurement tray 153 with the base part 6 to move between the second inner movement mechanism 1411 and the second outer movement mechanism 1421, the second inner movement mechanism 1411 and the second outer movement mechanism 1421 can respectively drive the plurality of second inner probes 1412 and the plurality of second outer probes 1422 thereon to move towards the measurement tray 153 inside, the plurality of second inner probes 1412 are driven by the second inner movement mechanism 1411 to be in contact with the connection terminal at one end of the base part 6, the plurality of second outer probes 1422 are driven by the second outer movement mechanism 1421 to be in contact with the connection terminal at the other end of the base part 6, the main circuit of the base unit 6 is switched into the second test power supply.

If the base unit 6 has already been tripped by the first measuring device 120, the resetting device 130 may re-engage the operating mechanism 5 of the base unit 6 to ensure that the base unit 6 is in a closed conducting state when the second test power supply is connected.

The second operating device is arranged above the second power supply device, the second operating device includes a second disengaging member 1432, the second disengaging member 1432 is arranged on the second upper moving mechanism 1431, after the base component 6 is connected to the second test power supply, the second upper moving mechanism 1431 can drive the second disengaging member 1432 to move downwards to one side of the temperature compensation mechanism 4 of the base component 6, then the second upper moving mechanism 1431 can drive the temperature compensation mechanism 4 through the second disengaging member 1432 until the temperature compensation mechanism 4 drives the operating mechanism 5 of the base component 6 to be disengaged, and then the second measuring module is ready to measure.

The second measuring module comprises two CCD vision measuring modules, the two CCD vision measuring modules are a first vision measuring unit 1441 and a second vision measuring unit 1442, respectively, the first vision measuring unit 1441 and the second vision measuring unit 1442 can operate according to the pixel distribution, brightness, color and other information of the photographed picture, extract the characteristics of the targets, and then calculate the distance between the targets, because the distances from the first vision measuring unit 1441 and the second vision measuring unit 1442 to the base component 6 are fixed, in this embodiment, the first bimetal B, the second bimetal C and the third bimetal D, and the position of the temperature compensating mechanism 4 at the moment of tripping are respectively extracted, and then are respectively compared with the data such as the predetermined proportion, and the respective distances from the first bimetal B, the second bimetal C and the third bimetal D to the temperature compensating mechanism 4 are respectively calculated, the first vision measuring unit 1441 is disposed above the second power supply device, the second vision measuring unit 1442 is disposed at one side of the first vision measuring unit 1441, a reflector 1443 engaged with the second vision measuring unit 1442 is disposed at a horizontal side of the measurement transferring device 150, and the reflector 1443 may be a rhomboid. The CCD vision measuring module is a commercially available product, and the distance between targets is calculated by processing the pictures shot by the CCD vision measuring module, which belongs to the prior art in the field and is not described any more.

The first vision measuring unit 1441 directly shoots the top side of the base part 6 from the top side, the control unit captures the position of the trip position a according to the image of the top side of the base part 6, the second vision measuring unit 1442 shoots the horizontal side of the base part 6 through a Mitsubishi mirror, the control unit captures the distances from the three bimetallic strips to the trip position a respectively according to the image of the horizontal side of the base part 6, then the distance between the three bimetallic strips is calculated through software, the distance from the third bimetallic strip D from right to left to the trip position a is Dad, the distance from the second bimetallic strip C to the trip position a is Dac, the distance between the first bimetallic strip B and the trip position a is Dab, the distance Dcd between the third bimetallic strip D and the second bimetallic strip C is Dad-Dac, the distance Dbc between the second bimetallic strip C and the first bimetallic strip B is Dac-Dab, and the distance Dab between the first bimetallic strip B and the trip position a does not need to be recalculated.

The Dab, Dbc, and Dcd are respectively averaged after two measurements by the first measuring device 120 and the second measuring device 140, and the Dab, Dbc, and Dcd after the average calculation are the basis of the cutting module 200. In addition, the reflector 1443 may not be provided, and the second vision measuring unit 1442 may be directly disposed at the side, which is within the protection scope of the present invention.

The measurement steps of the second measurement device 140 in this embodiment are:

step S20: the base unit 6 is moved to said second power supply means, which second power supply means switch the base unit 6 into the second test power supply;

step S21: the second upper movement mechanism 1431 drives the second release member 1432 and the second measurement module to move to one side of the temperature compensation mechanism 4;

step S22: the second upper moving mechanism 1431 drives the second release member 1432 to move towards the temperature compensation mechanism 4, so that the second release member 1432 pushes the temperature compensation mechanism 4, until no current passes through the base part 6, the second upper moving mechanism 1431 stops moving, and the temperature compensation mechanism 4 stops at the release position a;

step S23: the first vision measuring unit 1441 directly photographs the top surface of the base member 6 from the top side and captures the trip position a;

step S24: the second vision measuring unit 1442 photographs the side surface of the base member 6 through a mitsubishi mirror, and captures the positions of the three bimetal pieces, respectively;

step S25: respectively calculating the distances from the three bimetallic strips to a tripping position A;

step S26: respectively calculating the distance between two adjacent bimetallic strips, wherein the absolute value obtained by subtracting the distances from the two adjacent bimetallic strips to the tripping position A is the distance between the two adjacent bimetallic strips;

step S27: the second power supply means and the second operating means are reset and the base unit 6 is moved away from the second power supply means.

As shown in fig. 11, the resetting device 130 of this embodiment includes a resetting mechanism, and a resetting power mechanism 131 disposed on the resetting mechanism, the resetting power mechanism 131 is connected to a resetting rod 132, the resetting power mechanism 131 of this embodiment is composed of a traverse cylinder, a rack, and a steering gear, and the resetting rod 132 is provided with a driving gear 133;

the reset motion mechanism drives the driving gear 133 to contact with the base component 6, the reset power mechanism 131 drives the driving gear 133 to rotate, and the driving gear 133 drives the base component 6 to be buckled again.

As shown in fig. 12, the measurement transfer apparatus 110 of the present embodiment includes a measurement transfer movement mechanism 111, and a measurement transfer clamping mechanism 112 disposed on the measurement transfer movement mechanism 111, and the measurement transfer clamping mechanism 112 may be a clamping jaw cylinder and a grasping jaw, which are prior art, and the present embodiment is not limited in particular.

The movement mechanism described in this embodiment includes a first inner movement mechanism 1211, a first outer movement mechanism 1221, a first upper movement mechanism 1231, a second inner movement mechanism 1411, a second outer movement mechanism 1421, a second upper movement mechanism 1431, a reset movement mechanism, and a measurement transmission movement mechanism 111, which are all in the prior art, and may be formed by combining a plurality of laterally and vertically moving cylinders, or laterally and vertically moving electric cylinders, and the cylinders or the electric cylinders are provided with sensors for sensing the in-place situation of an action, and at least one of horizontal and vertical linear movement or rotational movement, and movement or rotation in a plane or three-dimensional space may be implemented, which is not specifically limited in this embodiment.

As shown in fig. 13-14, the cutting module 200 includes a cutting and feeding device 210, a cutting and feeding device 220, a cutting and conveying device 230, and a cutting and conveying device 240, wherein the cutting and feeding device 210 sequences a plurality of assembling components 7 and then sequentially conveys the sequenced assembling components 7 to the cutting and conveying device 220, the cutting and conveying device 220 drives the assembling components 7 to move according to the data measured by the measuring module 100, and the cutting and conveying device 230 is used for cutting the assembling components 7. The data that measuring module 100 surveyed convey to the PLC controller, the PLC controller control cuts conveyer 220 and removes, only need cut conveyer 220 and remove many times, and cutting operating means 230 need not remove just can be according to the accurate cutting of data that record to assembly part 7, and assembly part 7 after the cutting takes away through cutting transfer device 240 to put back on the total work piece tray 330 that its corresponding basic unit 6 was located.

As shown in fig. 14 to 15, in the cutting conveyor 220 of the present embodiment, since the cutting operation device 230 moves laterally, the fitting part 7 is moved by the cutting conveyor 220, so that the length after cutting is in accordance with the measured data.

The cutting operation device 230 of the present embodiment is a punching apparatus, and includes an upper die set 231 and a lower die set 232 which are disposed opposite to each other, and the upper die set 231 is provided with a cutter (not shown) having a punching cutting shape.

The cutting conveyor 220 of the present embodiment includes a screw mechanism composed of a traverse nut 221 and a rotary screw 222, and a cutting tray 224 and a rotating unit 223 connected to the traverse nut 221 and the rotary screw 222, respectively, wherein the cutting tray 224 is used for fixing the assembly member 7, and the rotating unit 223 can drive the rotary screw 222 to rotate, so that the rotary screw 222 drives the traverse nut 221 to drive the cutting tray 224 thereon to pass through the cutting operation device 230.

Further, the cutting and conveying device 220 is provided with a positioning sensor 225 on one side of the screw mechanism, the traverse nut 221 or the cutting tray 224 is provided with a positioning plate 226 matched with the positioning sensor 225, and the positioning sensor 225 determines whether the cutting tray 224 moves according to the data measured by the measuring module 100 by detecting the position of the positioning plate 226.

The positioning sensor 225 is matched with the positioning plate 226, so that the positioning sensor 225 can record the moving distance of the traverse nut 221, the moving distance of the traverse nut 221 is matched with the data measured by the measuring module 100, and the cut size of the assembly part 7 is consistent with that of the corresponding base part 6.

Further, a clamping push rod 227 for clamping the assembly component 7 is arranged on the cutting tray 224, the clamping push rod 227 is rotatably mounted on the cutting tray 224 and is connected with the cutting tray 224 through a clamping spring 1243, the clamping spring 1243 can drive the clamping push rod 227 to move towards the assembly component 7, the assembly component 7 is clamped on the cutting tray 224, when the clamping push rod 227 is pushed to move against the clamping spring 1243, the clamping push rod 227 can be avoided, so that the assembly component 7 can be conveniently taken out of the cutting tray 224, or the assembly component 7 is required to be placed in the cutting tray 224.

The cutting steps of the cutting module 200 of this embodiment are:

step S30: the lead screw mechanism drives the cutting tray 224 to move towards the cutting operation device 230, and after the positioning sensor 225 receives a signal that the cutting tray 224 moves in place for the first time, the lead screw mechanism stops moving the cutting tray 224, wherein the signal is a cutting positioning starting point and corresponds to a tripping position A;

step S32: the lead screw mechanism drives the cutting tray 224 to move continuously for a distance Dab, so that the cutter of the cutting operation device 230 corresponds to the position of the first bimetal B, and the cutter of the cutting operation device 230 cuts the connecting rod 8 corresponding to the first bimetal B downward.

Step S33: the lead screw mechanism drives the cutting tray 224 to move continuously by a distance Dbc, so that the cutter of the cutting operation device 230 corresponds to the position of the second bimetallic strip C, and the cutter of the cutting operation device 230 downwardly cuts the connecting rod 8 corresponding to the second bimetallic strip C.

Step S34: the lead screw mechanism drives the cutting tray 224 to move continuously for a distance Dcd, so that the cutter of the cutting operation device 230 corresponds to the position of the third bimetallic strip D, and the cutter of the cutting operation device 230 cuts the connecting rod 8 corresponding to the third bimetallic strip D downwards.

Step S35: the screw mechanism moves the cutting tray 224 to the cutting transfer device 240, and the cutting transfer device 240 takes the assembling part 7 and replaces the first transfer device 310.

As shown in fig. 14, the cutting and feeding device 210 of the present embodiment includes a distribution mechanism for distributing the assembled components 7 and a feeding and transferring mechanism for sequentially taking the assembled components 7 and placing them on the cutting tray 224 of the cutting and conveying device 220.

Specifically, the material distribution mechanism comprises a base 2111, a support 2112 and a material distribution movement mechanism 2113 connected with the support 2112, the base 2111 is connected with a bin for storing the assembly component 7, the material distribution movement mechanism 2113 can drive the support 2112 to push the assembly on the base 2111 to one side of the base 2111, so that the assembly component 7 on the support 2112 can be conveniently grabbed by the feeding transfer mechanism, and a material distribution sensor 2114 is also arranged on the base 2111;

the feeding transfer mechanism comprises a feeding motion mechanism 2121 and a feeding adsorption unit 2122 arranged on the feeding motion mechanism 2121, the feeding motion mechanism 2121 can drive the feeding adsorption unit 2122 to contact with the assembly part 7 in the material distribution mechanism, after the feeding adsorption unit 2122 adsorbs and is fixed with the assembly part 7, the feeding motion mechanism 2121 further drives the feeding adsorption unit 2122 to move to the cutting tray 224 of the cutting and conveying device 220, and then the feeding adsorption unit 2122 releases the assembly part 7, so that the process of distributing and feeding the assembly part 7 is realized.

It is understood that other ways of removing the mounting member 7 instead of the loading suction unit 2122 may be adopted, such as a clamping unit like a clamping jaw cylinder and a grasping clamp, which are commonly used, and the invention is within the protection scope of the invention.

Fig. 14 shows a cutting transfer device 240 of the present embodiment, which is basically the same as the structure and action process of the feeding transfer mechanism.

The blanking transfer mechanism comprises a blanking moving mechanism 241 and a blanking adsorption unit 242 arranged on the blanking moving mechanism 241, the blanking moving mechanism 241 can drive the blanking adsorption unit 242 to contact with an assembly part 7 in a cutting tray 224 of the cutting and conveying device 220, after the blanking adsorption unit 242 absorbs and is fixed with the assembly part 7, the blanking moving mechanism 241 drives the blanking adsorption unit 242 to move to the first conveying device 310, the blanking adsorption unit 242 releases the assembly part 7, and the blanking process of the assembly part 7 is achieved.

In the embodiment, the cutting and conveying device 220 is provided with the feeding sensor and the discharging sensor at two ends of the screw mechanism, the feeding sensor is arranged at one end close to the cutting and feeding device 210, the discharging sensor is arranged at one end close to the cutting and conveying device 240, the side surface of the cutting tray 224 is matched with the positioning plate 226 matched with the positioning sensor 225 and is also matched with the feeding sensor and the discharging sensor respectively, and when the cutting tray 224 moves to a position close to the cutting and feeding device 210 and the cutting and conveying device 240 under the drive of the screw rod, the feeding sensor and the discharging sensor can receive the moving in-place signal.

Further, the cutting conveyer 220 corresponds to two ends of the screw mechanism, that is, a feeding unlocking push rod and a discharging unlocking push rod are respectively arranged on one side of the feeding sensor and one side of the discharging sensor, and when the cutting tray 224 moves towards the two ends, the clamping push rod 227 is driven to be pushed by the unlocking push rod to be unlocked. Of course, a separate mechanical arm and a motion mechanism can be provided to independently push the clamping push rod 227, which falls within the protection scope of the present invention.

The feeding step of the cutting module 200 of this embodiment is:

step S41: the screw mechanism drives the cutting tray 224 to move towards the cutting and feeding device 210, and when the feeding sensor detects that the cutting tray 224 moves in place, the clamping push rod 227 on the cutting tray 224 is pushed away by the feeding unlocking push rod to be unlocked;

step S42: after the step S41 is in place, the feeding moving mechanism 2121 drives the feeding adsorption unit 2122 to contact with the assembling part 7 in the material separating mechanism;

step S43: after the step S42 is in place, the feeding adsorption unit 2122 sucks and fixes the assembly member 7;

step S44: after the step S43 is completed, the feeding moving mechanism 2121 drives the feeding adsorption unit 2122 to move to the cutting tray 224 of the cutting and conveying device 220;

step S45: after the step S44 is in place, the loading adsorption unit 2122 releases the fitting part 7;

step S46: the screw rod mechanism drives the cutting tray 224 to leave the cutting and feeding device 210, the clamping push rod 227 on the cutting tray 224 leaves the feeding and unlocking push rod, and the clamping push rod 227 clamps the assembly part 7 on the cutting tray 224;

the method also comprises a material distributing step which is carried out synchronously with the step S44:

step S44': when the feeding motion mechanism 2121 drives the feeding adsorption unit 2122 to take away the assembly component 7 on the support 2112, the distributing motion mechanism 2113 drives the support 2112 to reset, and after the support 2112 resets, the subsequent assembly component 7 on the base 2111 moves onto the support 2112 under the action of the vibrator;

step S45': after the distributing sensor 2114 on the base 2111 senses that the assembling component 7 is arranged on the support 2112, the distributing motion mechanism 2113 drives the support 2112 to be dislocated with the base 2111, and the assembling component 7 is pushed to one side again, so that the assembling component 7 can be conveniently taken away by the feeding and transferring device next time.

After the step S46 is finished, the cutting is performed in the steps S30 to S36, and then the step S37 is performed: the screw mechanism drives the cutting tray 224 to move to the cutting transfer device 240, the cutting transfer device 240 takes the assembling part 7 and replaces the first transfer device 310, and the step S37 includes the following steps:

step S371: the screw mechanism drives the cutting tray 224 to move towards the cutting transfer device 240, and when the blanking sensor detects that the cutting tray 224 moves in place, the clamping push rod 227 on the cutting tray 224 is pushed open by the blanking unlocking push rod to be unlocked;

step S372: after the step S371 is completed, the feeding moving mechanism 241 drives the feeding adsorption unit 242 to contact the assembly part 7 in the cutting tray 224;

step S373: after the step S372 is completed, the discharging adsorption unit 242 sucks and fixes the assembly component 7;

step S374: after the step S373 is completed, the feeding moving mechanism 241 drives the feeding adsorption unit 242 to move to the first conveying device 310;

step S375: after the step S374 is in place, the blanking suction unit 242 releases the fitting part 7.

The rotating unit 223, the material distributing mechanism 2113, the material loading mechanism 2121, and the material unloading mechanism 241 in this embodiment are all in the prior art, and may be formed by combining a plurality of laterally moving and vertically moving cylinders, or laterally moving and vertically moving electric cylinders, and the cylinders or the electric cylinders are all provided with sensors for sensing the in-place situation of the motion, and at least one of horizontal and vertical linear motion or rotational motion, and movement or rotation in a plane or three-dimensional space may also be implemented, which is not specifically limited in this embodiment.

The invention also provides an assembling method of the motor starter, which comprises the following steps:

step S0: connecting the base part 6 to a test power supply;

step S1: pushing the temperature compensation mechanism 4 of the base part 6 until the operating mechanism 5 of the base part 6 is tripped, and stopping the temperature compensation mechanism 4 at a tripping position A;

step S2: sequentially measuring distances between the plurality of bimetal strips on the plurality of base parts 6;

step S30: driving the assembling part 7 to move to the cutting module 200;

step S31: the assembling member 7 is sequentially moved according to the distances between the plurality of bimetal strips measured in step S2, and the assembling member 7 is cut after each movement.

According to the assembling method of the motor starter, in the assembling process of the motor starter, tripping operation and measurement are carried out on each specific motor starter in real time, the assembling part is cut based on the measurement, the efficiency is high, the accuracy is high, the matching degree of the assembling part and the motor starter is high, and the product is qualified.

The guide plate after cutting is used for being assembled into the motor starter, the cutting is mainly realized by the dynamic cutting equipment, the assembly part 7 after cutting can be assembled with the corresponding base part 6 together, and can also be conveyed to a subsequent station for assembly, and the method is not particularly limited and belongs to the protection scope of the invention.

Further, step S2 is a measurement method using visual capture, including the second measurement device 140, and step S2 includes the following steps:

step S20: the base unit 6 is moved to said second power supply means, which second power supply means switch the base unit 6 into the second test power supply;

step S21: the second upper movement mechanism 1431 drives the second release member 1432 and the second measurement module to move to one side of the temperature compensation mechanism 4;

step S22: the second upper moving mechanism 1431 drives the second release member 1432 to move towards the temperature compensation mechanism 4, so that the second release member 1432 pushes the temperature compensation mechanism 4, until no current passes through the base part 6, the second upper moving mechanism 1431 stops moving, and the temperature compensation mechanism 4 stops at the release position a;

step S23: the first vision measuring unit 1441 directly photographs the top surface of the base member 6 from the top side and captures the trip position a;

step S24: the second vision measuring unit 1442 photographs the side surface of the base member 6 through a mitsubishi mirror, and captures the positions of the three bimetal pieces, respectively;

step S25: respectively calculating the distances from the three bimetallic strips to a tripping position A;

step S26: respectively calculating the distance between two adjacent bimetallic strips, wherein the absolute value obtained by subtracting the distances from the two adjacent bimetallic strips to the tripping position A is the distance between the two adjacent bimetallic strips;

step S27: the second power supply means and the second operating means are reset and the base unit 6 is moved away from the second power supply means.

Step S20 constitutes the step S0, step S21 and step S22 constitute the step S1, and step S23 to step S216 constitute the step S2.

The present embodiment is three bimetallic strips, which are respectively a third bimetallic strip D, a second bimetallic strip C and a first bimetallic strip B from right to left:

the distance from the third bimetallic strip D to the tripping position A is Dad;

the distance from the second double metal sheet C to the tripping position A is Dac;

the distance from the first bimetallic strip B to the tripping position A is Dab;

the distance Dcd from the third bimetallic strip D to the second bimetallic strip C is Dad-Dac;

the distance Dab from the second bimetallic strip C to the first bimetallic strip B is Dac-Dab.

Further, the step S2 is a measurement method using mechanical contact, including the first measurement device 120, and the step S2 includes the following steps:

step S10: the first power supply device connects the base part 6 to a first test power supply;

step S11: the first tripping part 1232 pushes the temperature compensation mechanism 4 until the base part 6 is tripped, and a tripping position A is obtained according to the position of the first tripping part 1232;

step S12: the touch rod 1241 sequentially pushes the bimetallic strips, and when the touch rod 1241 rotates, the positions of the corresponding bimetallic strips are respectively recorded;

step S13: calculating the distances from the bimetallic strips to the tripping position A according to the step S11 and the step S12;

step S14: the first power supply means and the first operating means are reset and the base unit 6 is removed from the first power supply means;

step S15: the reset device 130 interlocks the operating mechanism 5 of the base member 6.

Further, both of the measurement methods in step S2 are adopted, and the first measurement device 120 performs the initial inspection, and then the second measurement device 140 performs the retest, that is, step S2 performs the steps S11 to S13, performs the initial inspection, and then performs the steps S21 to S25, and performs the retest.

It is understood that step S2 may also be performed by the mechanical contact test method only, or by the visual capture measurement method only, and all the steps are within the protection scope of the present invention.

Further, the step S31 is implemented by the cutting module 200, and the step S31 includes the following steps:

step S30: the lead screw mechanism drives the cutting tray 224 to move towards the cutting operation device 230, and after the positioning sensor 225 receives a signal that the cutting tray 224 moves in place for the first time, the lead screw mechanism stops moving;

step S32: according to the data measured by the measuring module 100, the cutter in the cutting operation device 230 is pressed downwards for the first time and is reset after cutting.

Step S33: the screw mechanism drives the cutting tray 224 to move the same distance D21 according to the distance D21 between the first bimetallic strip B and the second bimetallic strip C measured by the measuring module 100 until the positioning sensor 225 receives the signal that the cutting tray 224 moves in place for the second time;

step S34: the cutter in the cutting operation device 230 performs downward punching cutting for the second time, and resets after cutting;

step S35: the lead screw mechanism drives the cutting tray 224 to continue to move for the same distance D32 according to the distance D32 between the second bimetallic strip C and the third bimetallic strip D measured by the measuring module 100 until the positioning sensor 225 receives a signal that the cutting tray 224 moves in place for the third time;

step S36: the cutter in the cutting operation device 230 is punched downwards for the third time and is reset after cutting;

step S37: the screw mechanism moves the cutting tray 224 to the cutting transfer device 240, and the cutting transfer device 240 takes the assembling part 7 and replaces the first transfer device 310.

Specifically, the assembly part comprises a cutting conveying module and a cutting operation module, the cutting conveying module is identical to the cutting conveying device 220 in structure, the cutting operation module is identical to the cutting operation device 230 in structure, a cutting tray 224 used for fixing the assembly part 7 is arranged on the cutting conveying module, the assembly part 7 is driven to move to the initial position corresponding to the tripping position a through the cutting conveying module in step S31, and then the assembly part moves for multiple times, wherein the moving distance is the distance between the multiple bimetallic strips measured in step S2. This embodiment is three movements, and the distance of each movement is the distance Dab, Dbc and Dcd between the three bimetals.

Further, the cutting and feeding device comprises a cutting and feeding module, the cutting and feeding module has the same structure with the cutting and feeding device 210, and the cutting and feeding module is used for sequencing the assembling parts 7 and then sending the assembling parts to the cutting module.

Further, the assembly component further comprises a cutting transfer module, the cutting transfer module has the same structure as the cutting transfer device 240, and the cutting transfer module sends the cut assembly component 7 to the corresponding base assembly.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the inventive concept, and all should be considered as falling within the protection scope of the invention.

Claims (10)

1. A method of assembling a starter for an electric motor, comprising: the method comprises the following steps:

step S0: connecting the basic component (6) to a test power supply;

step S1: pushing a temperature compensation mechanism (4) of the base component (6) to stop at a tripping position (A);

step S2: measuring the distances from a plurality of bimetallic strips on the basic component (6) to the tripping positions (A) respectively;

step S31: and respectively cutting the assembling part (7) according to the distances from the bimetallic strips to the tripping positions (A) measured in the step S2.

2. The method of assembling a motor starter of claim 1 wherein: in the step S2, the positions of the trip position (a) and the plurality of bimetallic strips are respectively captured by the CCD vision measuring module, the distances from the plurality of bimetallic strips to the trip position (a) are respectively calculated, and the distances between adjacent bimetallic strips are respectively calculated according to the distances from the plurality of bimetallic strips to the trip position (a).

3. The method of assembling a motor starter of claim 2 wherein: the device comprises two CCD vision measuring modules, wherein one CCD vision measuring module is used for shooting a base part (6) from the top side and capturing a tripping position (A), and the other CCD vision measuring module is used for shooting the base part (6) from the horizontal side and capturing the positions of a plurality of bimetallic strips respectively.

4. The method of assembling a motor starter of claim 3 wherein: the step S2 includes the steps of:

step S23: directly shooting the top surface of the base part (6) from the top side and capturing the tripping position (A);

step S24: photographing the base member (6) from the horizontal side, and capturing the positions of the plurality of bimetal strips, respectively;

step S25: respectively calculating the distances from the three bimetallic strips to a tripping position (A);

step S26: and respectively calculating the distance between two adjacent bimetallic strips according to the data measured in the step S25, wherein the absolute value obtained by subtracting the distances from the trip positions (A) of the two adjacent bimetallic strips is the distance between the two adjacent bimetallic strips.

5. The method of assembling a motor starter of claim 1 wherein: the method comprises a cutting and conveying module and a cutting operation module, wherein in the step S31, the assembly component (7) is driven by the cutting and conveying module to move to the initial position corresponding to the tripping position (A) first, and then the assembly component moves for multiple times, wherein the distance of each movement is the distance between the bimetallic strips measured in the step S2.

6. The method of assembling a motor starter of claim 5 wherein: the three bimetallic strips are a first bimetallic strip B, a second bimetallic strip C and a third bimetallic strip D in sequence along the direction far away from the tripping position (A), the assembly part (7) is driven to move for three times by the cutting and conveying module in the step S31, and the distances of the two last times of movement are respectively the distance from the first bimetallic strip B to the second bimetallic strip C and the distance from the second bimetallic strip C to the third bimetallic strip D.

7. The method of assembling a motor starter of claim 1 wherein: the step S0 is preceded by the steps of:

step S10: the first power supply device connects the basic component (6) to a first test power supply;

step S11: the first tripping piece (1232) pushes the temperature compensation mechanism (4) until the base component (6) is tripped, and a tripping position (A) is obtained according to the position of the first tripping piece (1232);

step S12: the touch rod (1241) pushes the bimetallic strip in turn, and when the touch rod (1241) rotates, the positions of the corresponding bimetallic strips are recorded respectively;

step S13: calculating the distances from the bimetallic strips to a tripping position (A) according to the step S11 and the step S12;

step S15: the resetting device (130) is used for buckling the operating mechanism (5) of the base part (6).

8. The method of assembling a motor starter of claim 7 wherein: and step S13, when the touch rod (1241) contacts with the bimetallic strip, the rotating amplitude of the touch rod (1241) is also detected.

9. The method of assembling a motor starter according to claim 5, wherein: the assembly component feeding device further comprises a cutting feeding module, and the cutting feeding module is used for sequencing the assembly components (7) and then sending the assembly components to the cutting module.

10. The method of assembling a motor starter of claim 5 wherein: the assembly component cutting device further comprises a cutting transfer module, and the cutting transfer module sends the cut assembly component (7) to the corresponding base assembly.

Images