Dynamic cutting equipment
Through dual measurement and PLC control of dynamic cutting equipment, the problem of bimetal sheet assembly error in the motor starter is solved, precise cutting and assembly is achieved, ensuring the stable operation and protection function of the motor starter.
Patent Information
- Application Number
- CN202011453376.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2040-12-11
AI Technical Summary
In existing motor starters, the assembly error of the three bimetallic sheets leads to unstable fault protection function, and the adaptability of different motor starters is poor, making it difficult to achieve accurate cutting and assembly.
Using dynamic cutting equipment, mechanical contact and visual capture measurements are performed through the first measuring device and the second measuring device respectively, to obtain the distance between the bimetallic sheet and the trip position, and the PLC controller is used to control the cutting module according to the mean value to ensure the precise correspondence between the assembly parts and the foundation parts.
It improves assembly accuracy, realizes a highly automated cutting process, ensures reliable protection function of the motor starter, and reduces subsequent adjustment work.
Smart Images

Figure CN114619236B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automation, in particular to a dynamic cutting device. Background Art
[0002] The motor starter is used to assist in starting the motor and also has fault protection functions such as overload, phase loss and short circuit. The motor starter is equipped with a bimetallic strip. When an overload or phase loss fault occurs, the bimetallic strip can push the guide plate and disconnect the circuit connected to the motor, thereby protecting the motor.
[0003] However, a motor starter is usually provided with three bimetallic strips corresponding to a three-phase circuit. The three bimetallic strips need to be assembled separately and then installed in the motor starter. Not only are there errors between the three bimetallic strips, but the situations of different motor starters are also different. If the guide plate cannot adapt to the three bimetallic strips at the same time, when any phase fails, the corresponding bimetallic strip may be delayed or unable to contact the guide plate, causing the motor starter to be unable to work stably. Summary of the Invention
[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a dynamic cutting device that can automatically adjust the cutting length.
[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions:
[0006] A dynamic cutting device comprises a measuring module, a cutting module and a control unit connected to the measuring module and the cutting module respectively, the measuring module comprising a first measuring device and a second measuring device respectively for measuring a basic component, the first measuring device and the second measuring device respectively comprising a power supply device and an operating device, the power supply device connects the basic component to a test power supply, the operating device pushes the basic component to disconnect the test power supply to determine a tripping position, the first measuring device comprises a first measuring module, the second measuring device comprises a second measuring module, after the distance between the tripping position and the bimetallic strip of the basic component is measured by the first measuring module, the distance between the tripping position and the bimetallic strip of the basic component is measured by the second measuring module, the control unit controls the cutting module to cut the assembled component according to the average of the data measured by the first measuring device and the second measuring device.
[0007] Preferably, the first measurement module performs measurement by mechanical contact, and the second measurement module performs measurement by visual capture.
[0008] Preferably, the first measuring module includes a touch rod and a displacement sensor. The touch rod rotates when in contact with the bimetallic strip of the base component. The control unit records the position of the touch rod when the displacement sensor detects the rotation of the touch rod.
[0009] Preferably, the second measurement module includes a first visual measurement unit and a second visual measurement unit, the first visual measurement unit takes an image of the foundation component from the top side, and the second visual measurement unit takes an image of the foundation component from the horizontal side.
[0010] Preferably, the operating device of the first measuring device includes a first tripping member, which is arranged on the first upper motion mechanism. The first upper motion mechanism can drive the first tripping member to trigger the operating mechanism of the basic component to trip. When the basic component trips, the connected test power supply will be disconnected. When the test power supply is disconnected, the first upper motion mechanism stops, and the position of the first tripping member is the tripping position.
[0011] Preferably, the touch rod is rotatably mounted on the first upper motion mechanism, the displacement sensor is arranged on the first upper motion mechanism, and a spring for limiting the touch rod is provided on the first upper motion mechanism. The first upper motion mechanism drives the touch rod to move relative to the base component, so that the touch rod touches the bimetallic strip on the base component, and the control unit records the position of the touch rod when detecting the rotation of the touch rod through the displacement sensor.
[0012] Preferably, the operating device of the second measuring device includes a second tripping member, which is arranged on the second upper motion mechanism. The second upper motion mechanism can drive the second tripping member to trigger the operating mechanism of the basic component to trip, and the position of the second tripping member is the tripping position; the first visual measurement unit shoots the top side of the basic component, and the control unit captures the position of the tripping position based on the image of the top side of the basic component; the second visual measurement unit shoots the horizontal side of the basic component, and the control unit captures the distance from the bimetallic strip to the tripping position based on the image of the horizontal side of the basic component.
[0013] Preferably, the first measuring device and the second measuring device further comprise a power supply device and an operating device respectively. The power supply device can connect the basic component to the test power supply, and the operating device can push the basic component to disconnect the test power supply.
[0014] Preferably, the cutting module includes a cutting feeding device, a cutting conveying device and a cutting operation device. The cutting feeding device sends the assembly parts to the cutting conveying device. The cutting conveying device drives the assembly parts to move according to the data measured by the measuring module, and then the assembly parts are cut by the cutting operation device.
[0015] Preferably, the cutting and conveying device includes a screw mechanism consisting of a transverse nut and a rotating screw, and a cutting tray and a rotating unit respectively connected to the transverse nut and the rotating screw. The cutting tray is used to fix the assembly parts, and the rotating unit can drive the rotating screw to rotate, so that the rotating screw drives the transverse nut to drive the cutting tray thereon through the cutting operation device.
[0016] Preferably, the cutting conveying device is provided with a positioning sensor on one side of the screw mechanism, and the transverse nut or cutting tray is provided with a positioning plate that cooperates with the positioning sensor. The positioning sensor determines whether the cutting tray moves according to the data measured by the measuring module by detecting the position of the positioning plate.
[0017] Preferably, the cutting and feeding device includes a material dividing mechanism and a material feeding transfer mechanism, the material dividing mechanism includes a connected base and a support, and a material dividing motion mechanism connected to the support, the base is connected to the silo for storing assembly parts, the material dividing motion mechanism can drive the support to push the assembly on the base to one side of the base, the material feeding transfer mechanism includes a material feeding motion mechanism, and a material feeding adsorption unit arranged on the material feeding motion mechanism.
[0018] The dynamic cutting equipment created by the present invention performs real-time cutting according to the data measured by the measuring module, so that multiple assembly components can correspond one-to-one with multiple basic components after being cut, which facilitates the subsequent assembly of the assembly components with the basic components, can improve the accuracy of assembly, and has the characteristics of a high degree of automation. Moreover, the basic components have double protection after being tested twice by the first measuring device and the second measuring device, making the measured data more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The present invention is a motor starter for assembly according to an embodiment of the present invention;
[0020] Figure 2 The invention is a bimetallic strip used for measurement in accordance with an embodiment of the present invention;
[0021] Figure 3 The assembly components before and after cutting of the embodiment of the present invention;
[0022] Figure 4 is a plan view of a dynamic cutting device according to an embodiment of the present invention;
[0023] Figure 5 This is a flow chart of a dynamic cutting device according to an embodiment of the present invention;
[0024] Figure 6 This is a plan view of a measurement module according to an embodiment of the present invention;
[0025] Figure 7 This is a schematic structural diagram of a measurement module according to an embodiment of the present invention;
[0026] Figure 8 This is a schematic structural diagram of a first measuring device according to an embodiment of the present invention;
[0027] Figure 9 This is a schematic structural diagram of the first measurement module according to an embodiment of the present invention;
[0028] Figure 10 2 is a schematic structural diagram of a second measuring device according to an embodiment of the present invention;
[0029] Figure 11 This is a schematic structural diagram of a reset device according to an embodiment of the present invention;
[0030] Figure 12 This is a schematic structural diagram of a measurement and transfer device according to an embodiment of the present invention;
[0031] Figure 13 This is a plan view of a cutting module according to an embodiment of the present invention;
[0032] Figure 14 This is a schematic structural diagram of the cutting module according to an embodiment of the present invention;
[0033] Figure 15 This is a schematic structural diagram of a cutting and conveying device according to an embodiment of the present invention;
[0034] Figure 16 It is a structural schematic diagram of a cutting and feeding device according to an embodiment of the present invention. DETAILED DESCRIPTION
[0035] like Figure 4-5 As shown, the dynamic cutting equipment created by 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 respectively. The measuring module 100 includes a first measuring device 120 and a second measuring device 140 for measuring the basic component 6 respectively. The basic component 6 is measured by the first measuring device 120 and then by the second measuring device 140. The control unit controls the cutting module 200 to cut the assembly component 7 according to the average of the data measured by the first measuring device 120 and the second measuring device 140.
[0036] The dynamic cutting equipment created by the present invention performs real-time cutting according to the data measured by the measuring module 100, so that multiple assembly components 7 can correspond one-to-one with multiple basic components 6 after cutting, which facilitates the subsequent assembly of the assembly components 7 and the basic components 6, can improve the accuracy of assembly, and has the characteristics of a high degree of automation. Moreover, the basic component 6 has double protection after being tested twice by the first measuring device 120 and the second measuring device 140, making the measured data more accurate.
[0037] The following is combined with Figures 1 to 16 The following examples further illustrate the specific implementation of the dynamic cutting device created by the present invention. The base component 6 and the assembly component 7 of this embodiment are used to assemble into a motor starter, but the dynamic cutting device created by the present invention is not limited to the motor starter and the description of the following examples.
[0038] like Figure 4-5As shown, the dynamic cutting equipment created by 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 respectively. The measuring module 100 includes a first measuring device 120 and a second measuring device 140 respectively for measuring the basic components 6. After the multiple basic components 6 are measured by the first measuring device 120, they are measured by the second measuring device 140 in turn. The control unit controls the cutting module 200 to cut the multiple assembly components 7 according to the average value of the data measured by the first measuring device 120 and the second measuring device 140.
[0039] The control unit is preferably a PLC controller, which controls the various mechanisms of the measurement module 100 and the cutting module 200, obtains measurement data from the measurement module 100, and controls the cutting module 200 to perform cutting. PLC controllers are common automation controllers, and controlling the movements of various mechanisms based on PLC controllers is a state of the art and will not be described in detail.
[0040] like Figure 1-3 As shown, the basic component 6 includes three bimetallic strips respectively installed on the motor starter, and a temperature compensation mechanism 4 arranged on one side of the three bimetallic strips. The cut assembly component 7 is located between the bimetallic strips and the temperature compensation mechanism 4. The bimetallic strips push the cut assembly component 7 to drive the temperature compensation mechanism 4. Therefore, the distance relationship between the three bimetallic strips and the temperature compensation mechanism 4 must be measured respectively first, and then the assembly component 7 is cut according to the distance relationship.
[0041] Specifically, the three bimetallic strips are, from left to right, the first bimetallic strip B, the second bimetallic strip C, and the third bimetallic strip D. When measuring, the measuring module 100 first pushes the temperature compensation mechanism 4, and then pushes the operating mechanism 5 of the base component 6 through the temperature compensation mechanism 4 until the operating mechanism 5 just trips. At this time, the position of the temperature compensation mechanism 4 is the tripping position A. Then, the distance from each of the three bimetallic strips to the tripping position A is measured respectively. The assembly component 7 needs to match this distance after cutting, so that the assembly component 7 after cutting can push the temperature compensation mechanism 4 to still be in the tripping position A, ensuring that when any bimetallic strip is bent, it can push the temperature compensation mechanism 4 through the assembly component 7, and then trip the operating mechanism 5, thereby tripping the motor starter and protecting the motor. Since the tripping position of each product is different, the present invention improves the accuracy of product assembly through real-time measurement, avoiding excessive adjustment work after subsequent assembly. In this embodiment, each basic component 6 is equipped with multiple parts, so the distances between the three bimetallic strips on each basic component 6 and the distances from each of the three bimetallic strips to the tripping position A are different.
[0042] The assembly component 7 is two integrated guide plates, which are connected by three connecting rods 8. When cutting, the cutting module 200 needs to divide the three connecting rods 8 into two in turn, and each connecting rod 8 becomes two sections of driving rods 9. The two sections of driving rods 9 are connected to their respective guide plates, and the assembly component 7 also becomes two independent guide plates.
[0043] The tool used to cut the connecting rod 8 has a thickness equivalent to that of the bimetallic strip, so that the cutting edge is also equal to the thickness of the bimetallic strip. After the connecting rod 8 is cut into two sections of driving rods 9, when they are put on the corresponding bimetallic strips, the bimetallic strips can contact the driving rods 9 on both sides respectively, so that when the bimetallic strips bend to one side due to overload or bend to the other side due to phase loss, they can push the driving rod 9, and then the driving rod 9 drives the guide plate to trip the operating mechanism and disconnect the circuit, ensuring a reliable protection function.
[0044] Specifically, after cutting, one end of the two guide plates are respectively cooperated with the temperature compensation mechanism 4, and the other ends of the two guide plates are respectively provided with three driving rods 9 for cooperating with the bimetallic strips. The three driving rods 9 on one guide plate are respectively arranged on one side of the three bimetallic strips, and the three driving rods 9 on the other guide plate are respectively arranged on the other side of the three bimetallic strips. Any bimetallic strip bends to one side, which can push the driving rod 9 on that side to drive the corresponding guide plate, so that the operating mechanism 5 is disengaged. Similarly, any bimetallic strip bends to the other side, driving the other guide plate to disengage the operating mechanism 5.
[0045] like Figure 4-5 As shown, the dynamic cutting equipment of this embodiment further includes a first conveying device 310 and a second conveying device 320 arranged adjacent to each other, and the measuring module 100 and the cutting module 200 are arranged on one side of the first conveying device 310 and the second conveying device 320. The conveying directions of the first conveying device 310 and the second conveying device 320 are opposite, and the left ends of the first conveying device 310 and the second conveying device 320 are respectively used to convey the basic component 6, and the right ends are respectively used to convey the total workpiece pallet 330. Each total workpiece pallet 330 can simultaneously fix the basic component 6 and the assembly component 7, that is, one side of each total workpiece pallet 330 is used to fix the basic component 6, and the other side of the total workpiece pallet 330 is used to fix the assembly component 7 corresponding to the basic component 6.
[0046] The first conveying device 310 first delivers the unmeasured basic component 6 to one side of the measuring module 100, so that the measuring module 100 can take away the unmeasured basic component 6 and measure it.
[0047] If the basic component 6 is qualified by measurement, when the total workpiece pallet 330 passes through the measuring module 100, the measuring module 100 places the qualified basic component 6 on the total workpiece pallet 330, and the total workpiece pallet 330 is sent to the cutting module 200 through the first conveying device 310. The cutting module 200 then places the corresponding assembly component 7 after cutting on the total workpiece pallet 330. After the operation of the subsequent station is completed, when the total workpiece pallet 330 passes through the second conveying device 320 again, a pusher 321 is provided on the second conveying device 320, and the pusher 321 sends the total workpiece pallet 330 back to the first conveying device 310, and the total workpiece pallet 330 returns to the predetermined initial position;
[0048] If the basic component 6 fails to be measured, the measuring module 100 places the basic component 6 that fails to be measured into the second conveying device 320 , but does not place it into the main workpiece tray 330 , and discharges the basic component 6 through the second conveying device 320 .
[0049] In this embodiment, the corresponding basic components 6 and assembly components 7 are fixed on the main workpiece pallet 330 respectively, and then sent to the subsequent workstation through the first conveying device 310. It can be automatically inspected and assembled or manually operated, which is very flexible to use.
[0050] It is understood that after measurement, the base component 6 can be positioned first, allowing the cut assembly component 7 to be directly assembled onto the base component 6, rather than being transported to other subsequent workstations via the first conveyor 310. Whether the assembly component 7 is mounted onto the base component 6 is not specifically limited in this embodiment and falls within the scope of protection of the present invention. Of course, the second conveyor 320 can also be omitted, and unqualified products can be discharged by other means, such as into an unqualified collection box.
[0051] like Figure 6-7 The structure of the measuring module 100 of this embodiment is shown. The measuring module 100 of this embodiment includes a measuring transmission device 150, and a measuring transfer device 110, a first measuring device 120, a reset device 130 and a second measuring device 140 arranged in sequence along the transmission direction of the measuring transmission device 150.
[0052] The measuring conveyor 150 of this embodiment is a divider, which includes a rotatable turntable 151 and a non-rotating disc 152 arranged above the turntable 151. Four measuring trays 153 for fixing the base component 6 are respectively fixed on the turntable 151 and rotate together;
[0053] The measuring transfer device 110 is disposed on a side of the measuring conveyor device 150 close to the first conveyor device 310. The measuring transfer device 110 can sequentially remove unmeasured basic components 6 from the first conveyor device 310 and place the basic components 6 on the measuring tray 153. The measuring conveyor device 150 can drive multiple basic components 6 to pass through the first measuring device 120, the reset device 130, and the second measuring device 140 in sequence. Finally, the measuring transfer device 110 places qualified basic components 6 on the first conveyor device 310 and unqualified basic components 6 on the second conveyor device 320.
[0054] Since the operating mechanism 5 of the base component 6 may be disengaged during the measurement process of the first measuring device 120 , the operating mechanism 5 of the base component 6 is re-engaged by the reset device 130 to facilitate subsequent measurement by the second measuring device 140 .
[0055] Because the first conveyor 310 can simultaneously provide and remove the base component 6 for the measurement module 100, and the measurement module 100 of this embodiment cooperates with the first conveyor 310 via a divider, only one measurement transfer device 110 is required. After the measurement transfer device 110 removes the base component 6 from the first conveyor 310, the divider rotates one circle and then returns to the measurement transfer device 110, allowing the measurement transfer device 110 to directly return the base component 6 to the first conveyor 310. This not only saves costs but also reduces volume. It is understood that the measurement module 100 can also be provided with an independent device for providing the base component 6, rather than providing the base component 6 through the first conveyor 310, and all of this falls within the scope of protection of the present invention.
[0056] Figure 8-9 and Figure 10 The first measuring device 120 and the second measuring device 140 are shown respectively. In this embodiment, two measurements are performed by the first measuring device 120 and the second measuring device 140 respectively. In this embodiment, the first measuring device 120 and the second measuring device 140 have different measuring methods. The first measuring device 120 and the second measuring device 140 are respectively used to determine the tripping position A of the temperature compensation mechanism 4, and then measure the distances from the three bimetallic strips to the tripping position A respectively.
[0057] The first measuring device 120 and the second measuring device 140 each include a power supply device and an operating device. The power supply device connects the base component 6 to the test power supply, and the operating device drives the base component 6 to disconnect the test power supply to determine the trip position A. During measurement, the first measuring device 120 and the second measuring device 140 first connect the base component 6 to the test power supply via their respective power supply devices. Then, their respective operating devices drive the temperature compensation mechanism 4, which in turn drives the operating mechanism 5 of the base component 6 until the operating mechanism 5 just trips. At this moment, the base component 6 disconnects the test power supply of the power supply device due to tripping. Based on the power supply disconnection signal, the position of the operating device at that moment is recorded. Since the temperature compensation mechanism 4 is driven by the operating device, determining the position of the operating device can determine the position of the temperature compensation mechanism 4 at that moment, i.e., the trip position A.
[0058] Specifically, the first measuring device 120 includes a first power supply device, a first operating device, and a first measuring module, wherein the first power supply device and the first operating device are the power supply device and the operating device of the first power supply device; the second measuring device 140 includes a second power supply device, a second operating device, and a second measuring module, wherein the second power supply device and the second operating device are the power supply device and the operating device of the second power supply device;
[0059] The first power supply device and the second power supply device are respectively used to connect the basic component 6 to the test power supply and measure the current signal passing through the basic component 6. The basic component 6 can turn on the test power supply before tripping and disconnect the test power supply after tripping.
[0060] The first operating device and the second operating device are respectively used to push the temperature compensation mechanism 4 until the temperature compensation mechanism 4 drives the operating mechanism 5 to trip;
[0061] However, the first and second measurement modules are different. They share the same purpose, but employ different methods. The first module uses mechanical contact for initial inspection and determines product conformity, while the second module uses visual capture for re-inspection. These two measurements generate two sets of data corresponding to the distance from each bimetallic strip to trip position A. The average of these two sets of data is then used to control the cutting module 200 for cutting.
[0062] The first measuring module and the second measuring module are now described respectively in conjunction with the specific structures of the first measuring device 120 and the second measuring device 140 .
[0063] like Figure 8-9The first measuring device 120 of this embodiment is shown. The first measuring device 120 includes a first power supply device, a first operating device and a first measuring module. The first measuring module adopts a mechanical contact measurement method.
[0064] The first power supply device includes a first inner motion mechanism 1211 and a first outer motion mechanism 1221 that are spaced apart. The first inner motion mechanism 1211 is provided with a plurality of first inner probes 1212, and the first outer motion mechanism 1221 is provided with a plurality of first outer probes 1222. 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 conveying device 150 can drive the measurement tray 153 equipped with the basic component 6 to move to the first inner motion mechanism 1211 and the first outer motion mechanism 1221. Between the first inner motion mechanism 1211 and the first outer motion mechanism 1221, the first inner probes 1212 and the first outer probes 1222 thereon can respectively move toward the inner measurement tray 153. Driven by the first inner motion mechanism 1211, the first inner probes 1212 contact the wiring terminals at one end of the base component 6, and driven by the first outer motion mechanism 1221, the first outer probes 1222 contact the wiring terminals at the other end of the base component 6, thereby connecting the main circuit of the base component 6 to the first test power supply. In this embodiment, when assembling the base component 6, the base component 6 is already in a closed state, and the main circuit of the base component 6 is in a closed and conductive state. Therefore, a step similar to the reset device 130 is omitted here. A device similar to the reset device 130 can also be provided here to ensure that the main circuit of the base component 6 is in a closed and conductive state, but this is not specifically limited here.
[0065] The first operating device is arranged above the first power supply device, and the first operating device includes a first tripping member 1232. The first tripping member 1232 is arranged on the first upper motion mechanism 1231. After the basic component 6 is connected to the first test power supply, the first upper motion mechanism 1231 can drive the first tripping member 1232 to move downward to the side of the temperature compensation mechanism 4 of the basic component 6, and then the first upper motion mechanism 1231 can drive the first tripping member 1232 to push the temperature compensation mechanism 4 until the temperature compensation mechanism 4 pushes the operating mechanism 5 of the basic component 6 to trip. When the basic component 6 is tripped, the connected first test power supply will be disconnected. When the first test power supply is disconnected, the first upper motion mechanism 1231 stops. At this time, the position of the first tripping member 1232 is the tripping position A.
[0066] The first measuring module is also arranged on the first upper motion mechanism 1231. The first measuring module and the first operating device are both arranged on the first upper motion mechanism 1231, so that when the first upper motion mechanism 1231 corresponds to the position of the tripping position A, as long as the first upper motion mechanism 1231 continues to move to the position of the first bimetallic strip B, the distance from the first bimetallic strip B to the tripping position A can be measured more conveniently, simplifying the steps and facilitating calculation.
[0067] The first measurement module includes a rotatable touch rod 1241 and a displacement sensor 1242 for measuring the rotational amplitude of the touch rod 1241. The first upper motion mechanism 1231 is capable of driving the touch rod 1241 to move relative to the base component 6, causing the touch rod 1241 to sequentially contact multiple bimetallic strips on the base component 6. Simultaneously, the displacement sensor 1242 detects the rotational amplitude of the touch rod 1241, thereby detecting that the touch rod 1241 has contacted the bimetallic strips. While this embodiment detects contact by detecting the rotation of the touch rod 1241 through the displacement sensor 1242, other non-rotational methods may also be used for detection.
[0068] When the touch rod 1241 contacts the bimetallic strip, it rotates. 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 the rotation of the touch rod 1241. The position is recorded three times if the touch rod 1241 rotates three times. Since the first measuring module and the first operating device are both arranged on the first upper motion mechanism 1231, the starting position of the touch rod 1241 is the tripping position A. The difference between the position of the three bimetallic strips and the tripping position A is used to calculate the distance between each of the three bimetallic strips and the tripping position A, or the distance between each of the three bimetallic strips and the tripping position A is obtained based on the movement distance of the first upper motion mechanism 1231 after the tripping position A.
[0069] The specific structure is:
[0070] The first measuring module includes a first upper motion mechanism 1231 and a touch rod 1241 rotatably arranged on the first upper motion mechanism 1231, and a displacement sensor 1242 arranged on the first upper motion mechanism 1231 and cooperating with the touch rod 1241. A spring 1243 for limiting the touch rod 1241 is provided on the first upper motion mechanism 1231. The spring 1243 can prevent the touch rod 1241 from rotating when it is not in contact with the bimetallic strip. When the bimetallic strip contacts the touch rod 1241, it overcomes the action of the spring 1243 and pushes the touch rod 1241 to rotate. After the bimetallic strip and the touch rod 1241 are separated, the spring 1243 drives the touch rod 1241 to reset.
[0071] In this embodiment, the first upper motion mechanism 1231 includes a servo motor and corresponding connectors. The servo motor indirectly drives the movement of the first measurement module and the first operating device. When the displacement sensor 1242 detects the rotation of the touch rod 1241, the servo motor records the position, and then calculates the distance relationship based on multiple position relationships. It is understood that other methods, such as sensors, can also be used to record position instead of the servo motor, and this is not specifically limited here.
[0072] The displacement sensor 1242 of this embodiment is a laser sensor. When the touch rod 1241 contacts the bimetallic strip, the displacement sensor 1242 also detects the rotation amplitude of the touch rod 1241. If the laser sensor detects that the rotation amplitude of the touch rod 1241 is too large, exceeding the preset threshold, it proves that the bimetallic strip is not firmly installed, or the distance between the bimetallic strips is too large. The corresponding basic component 6 is an unqualified product and is sent to the second conveying device 320 for discharge through the measuring and transmission device 110.
[0073] The measurement steps of the first measurement device 120 in this embodiment are:
[0074] Step S10: The first power supply device connects the basic component 6 to the first test power supply;
[0075] Step S11: The first tripping member 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 member 1232;
[0076] Step S12: The touch rod 1241 pushes the bimetallic strips in sequence, and each time the touch rod 1241 rotates, the corresponding position of the bimetallic strips is recorded;
[0077] Step S13: Calculating the distances from the plurality of bimetallic strips to the tripping position A according to Step S11 and Step S12: 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 from the first bimetallic strip B to the second bimetallic strip C is Dbc, and the distance from the second bimetallic strip C to the third bimetallic strip D is Dcd.
[0078] Step S14: The first power supply device and the first operating device are reset, and the base component 6 is separated from the first power supply device.
[0079] like Figure 10 The second measuring device 140 of this embodiment, the second power supply device, the second operating device and the second measuring module are shown. The second measuring module adopts a CCD visual capture measurement method. The CCD visual capture measurement method is more intuitive and more accurate. The second measuring module can make up for the inaccurate measurement problem of the first measuring module.
[0080] Because the first measurement module involves many uncertainties, the servo motor's recorded position itself has certain errors, and the recording instructions are issued based on the displacement sensor 1242, the measurement results are prone to inaccurate. However, the temperature compensation mechanism 4 is rotatable, and when the second measurement module captures the trip position A of the temperature compensation mechanism 4, this can also lead to inaccurate measurement results. However, during the measurement process, the first measurement module is always in contact with the temperature compensation mechanism 4, so the measurement structure is more accurate than CCD visual capture. The two complement each other to ensure the accuracy of the measurement results. The second power supply device has the same structure and operating principle as the first power supply device, and the second operating device has the same structure and operating principle as the first operating device.
[0081] The second power supply device includes a second inner motion mechanism 1411 and a second outer motion mechanism 1421 that are spaced apart. The second inner motion mechanism 1411 is provided with a plurality of second inner probes 1412, and the second outer motion mechanism 1421 is provided with a plurality of second outer probes 1422. 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 conveying device 150 can drive the measurement tray 153 equipped with the base component 6 to move to the second inner motion mechanism 1411 and the second outer motion mechanism 1421. Between the mechanism 1421, the second inner motion mechanism 1411 and the second outer motion mechanism 1421 can respectively drive the multiple second inner probes 1412 and the multiple second outer probes 1422 thereon to move toward the inner measuring tray 153, and the multiple second inner probes 1412 are driven by the second inner motion mechanism 1411 to contact the wiring terminals at one end of the base component 6, and the multiple second outer probes 1422 are driven by the second outer motion mechanism 1421 to contact the wiring terminals at the other end of the base component 6, so that the main circuit of the base component 6 is connected to the second test power supply.
[0082] If the basic component 6 has been tripped when passing through the first measuring device 120, the reset device 130 can reclose the operating mechanism 5 of the basic component 6 to ensure that the basic component 6 is in a closed and conductive state when the second test power supply is connected.
[0083] The second operating device is arranged above the second power supply device, and the second operating device includes a second tripping member 1432. The second tripping member 1432 is arranged on the second upper motion mechanism 1431. After the basic component 6 is connected to the second test power supply, the second upper motion mechanism 1431 can drive the second tripping member 1432 to move downward to the side of the temperature compensation mechanism 4 of the basic component 6, and then the second upper motion mechanism 1431 can push the temperature compensation mechanism 4 with the second tripping member 1432 until the temperature compensation mechanism 4 drives the operating mechanism 5 of the basic component 6 to trip, and then the second measurement module is ready for measurement.
[0084] The second measurement module includes two CCD vision measurement modules, which are the first vision measurement unit 1441 and the second vision measurement unit 1442. The first vision measurement unit 1441 and the second vision measurement unit 1442 can perform calculations based on the pixel distribution, brightness, color and other information of the captured image, extract the features of the target, and then calculate the distance between the targets. Since the distances from the first vision measurement unit 1441 and the second vision measurement unit 1442 to the base component 6 are fixed, in this embodiment, the first bimetallic strip B and the second bimetallic strip C are extracted respectively. The position of the first bimetallic strip B, the second bimetallic strip C, and the third bimetallic strip D, as well as the temperature compensation mechanism 4 at the moment of tripping, are then compared with predetermined ratios and other data to calculate the distances from the first bimetallic strip B, the second bimetallic strip C, and the third bimetallic strip D to the temperature compensation mechanism 4. A first visual measurement unit 1441 is positioned above the second power supply device, and a second visual measurement unit 1442 is positioned to one side of the first visual measurement unit 1441. A reflector 1443 is positioned on the horizontal side of the measurement transmission device 150 to cooperate with the second visual measurement unit 1442. Reflector 1443 may be a prism. The CCD visual measurement module is a commercially available product. Processing and calculating the distances between targets based on images captured by the CCD visual measurement module is conventional technology in the art and will not be further described.
[0085] The first visual measurement unit 1441 directly photographs the top side of the base component 6 from the top side, and the control unit captures the position of the tripping position A based on the image of the top side of the base component 6. The second visual measurement unit 1442 photographs the horizontal side of the base component 6 through a prism. The control unit captures the distances of the three bimetallic strips to the tripping position A based on the image of the horizontal side of the base component 6. The software then calculates the distances between the three bimetallic strips. From right to left, the distance from the third bimetallic strip D to the tripping position A is Dad, the distance from the second bimetallic strip C to the tripping position A is Dac, and the distance from the first bimetallic strip B to the tripping position A is Dab. The distance from the third bimetallic strip D to the second bimetallic strip C is Dcd = Dad - Dac, and the distance from the second bimetallic strip C to the first bimetallic strip B is Dbc = Dac - Dab. The distance Dab from the first bimetallic strip B to the tripping position A does not need to be calculated again.
[0086] The Dab, Dbc, and Dcd values are measured twice by the first measuring device 120 and the second measuring device 140, and then averaged. The averaged values of Dab, Dbc, and Dcd serve as the basis for the cutting module 200. Furthermore, the reflector 1443 may be omitted, and the second visual measurement unit 1442 may be positioned directly on the side, both of which fall within the scope of protection of the present invention.
[0087] The measurement steps of the second measurement device 140 in this embodiment are:
[0088] Step S20: the basic component 6 is moved to the second power supply device, and the second power supply device connects the basic component 6 to the second test power supply;
[0089] Step S21: The second upper motion mechanism 1431 drives the second tripping member 1432 and the second measuring module to move to one side of the temperature compensation mechanism 4;
[0090] Step S22: The second upper motion mechanism 1431 drives the second tripping member 1432 to move toward the temperature compensation mechanism 4, so that the second tripping member 1432 pushes the temperature compensation mechanism 4 until no current flows through the base component 6. Then, the second upper motion mechanism 1431 stops moving, so that the temperature compensation mechanism 4 stops at the tripping position A.
[0091] Step S23: the first visual measurement unit 1441 directly photographs the top surface of the foundation component 6 from the top side and captures the tripping position A;
[0092] Step S24: The second visual measurement unit 1442 photographs the side surface of the base component 6 through the prism, and captures the positions of the three bimetallic strips respectively;
[0093] Step S25: Calculate the distance from each of the three bimetallic strips to the tripping position A;
[0094] Step S26: Calculate the distance between two adjacent bimetallic strips respectively, and the absolute value of the difference between the distances from the adjacent bimetallic strips to the tripping position A is the distance between the two adjacent bimetallic strips;
[0095] Step S27: The second power supply device and the second operating device are reset, and the base component 6 is separated from the second power supply device.
[0096] like Figure 11 The reset device 130 of this embodiment is shown. The reset device 130 includes a reset motion mechanism and a reset power mechanism 131 provided on the reset motion mechanism. The reset power mechanism 131 is connected to a reset rod 132. The reset power mechanism 131 of this embodiment is composed of a transverse cylinder, a rack, and a steering gear. The reset rod 132 is provided with a drive gear 133.
[0097] The reset motion mechanism first drives the driving gear 133 to contact the base component 6, and the reset power mechanism 131 then drives the driving gear 133 to rotate, and drives the base component 6 to re-engage through the driving gear 133. This is the existing technology and is not specifically limited in this embodiment.
[0098] like Figure 12The measuring transfer device 110 of this embodiment is shown. The measuring device includes a measuring transfer motion mechanism 111 and a measuring transfer clamping mechanism 112 arranged on the measuring transfer motion mechanism 111. The measuring transfer clamping mechanism 112 can be a clamping cylinder and a grasping forceps. This is the existing technology and is not specifically limited in this embodiment.
[0099] The motion mechanism described in this embodiment includes a first inner motion mechanism 1211, a first outer motion mechanism 1221, a first upper motion mechanism 1231, a second inner motion mechanism 1411, a second outer motion mechanism 1421, a second upper motion mechanism 1431, a reset motion mechanism and a measurement and transmission motion mechanism 111, all of which are existing technologies and can be composed of a plurality of horizontal and vertical moving cylinders, or a combination of horizontal and vertical moving electric cylinders, and the cylinders or electric cylinders are provided with sensors for sensing the positioning of the action, and can realize at least one linear motion or rotational motion in the horizontal and vertical directions, and can also realize movement or rotation in a plane or three-dimensional space, which is not specifically limited in this embodiment.
[0100] like Figure 13-14 The structure of the cutting module 200 is shown. The cutting module 200 includes a cutting feeder 210, a cutting conveyor 220, a cutting operation device 230, and a cutting transfer device 240. The cutting feeder 210 sorts the multiple assembly components 7 and sequentially delivers them to the cutting conveyor 220. The cutting conveyor 220 moves the assembly components 7 according to the data measured by the measurement module 100, and the cutting operation device 230 is used to cut the assembly components 7. The data measured by the measurement module 100 is transmitted to the PLC controller, which controls the movement of the cutting conveyor 220. The cutting conveyor 220 only needs to move multiple times, and the cutting operation device 230 does not need to move to accurately cut the assembly components 7 according to the measured data. The cut assembly components 7 are removed by the cutting transfer device 240 and returned to the main workpiece tray 330 where their corresponding base components 6 are located.
[0101] like Figure 14-15 The cutting conveyor 220 of this embodiment is shown. Since the cutting operation device 230 moves laterally, the assembly component 7 is moved by the cutting conveyor 220 so that the length after cutting is consistent with the measured data.
[0102] The cutting operation device 230 of this embodiment is a punching device, which includes an upper die set 231 and a lower die set 232 arranged opposite to each other. The upper die set 231 is provided with a tool having a punching and cutting shape (not shown in the figure).
[0103] The cutting and conveying device 220 of this embodiment includes a screw mechanism consisting of a transverse nut 221 and a rotating screw 222, and a cutting tray 224 and a rotating unit 223 respectively connected to the transverse nut 221 and the rotating screw 222. The cutting tray 224 is used to fix the assembly part 7, and the rotating unit 223 can drive the rotating screw 222 to rotate, so that the rotating screw 222 drives the transverse nut 221 to drive the cutting tray 224 thereon to pass through the cutting operation device 230.
[0104] Furthermore, the cutting conveying device 220 is provided with a positioning sensor 225 on one side of the screw mechanism, and the transverse nut 221 or the cutting tray 224 is provided with a positioning plate 226 that cooperates with the positioning sensor 225. 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.
[0105] By cooperating with the positioning sensor 225 and the positioning plate 226, the positioning sensor 225 can record the moving distance of the transverse nut 221, so that the moving distance of the transverse nut 221 matches the data measured by the measuring module 100, thereby making the size of the assembly component 7 after cutting consistent with the corresponding basic component 6.
[0106] Furthermore, the cutting tray 224 is provided with a clamping push rod 227 for clamping the assembly part 7. The clamping push rod 227 can be rotatably installed on the cutting tray 224 and connected to the cutting tray 224 through a clamping spring 1243. The clamping spring 1243 can drive the clamping push rod 227 to move toward the assembly part 7 to clamp the assembly part 7 on the cutting tray 224. When the clamping push rod 227 is pushed to overcome the movement of the clamping spring 1243, the clamping push rod 227 can be avoided, which is convenient for removing the assembly part 7 from the cutting tray 224, or placing the assembly part 7 into the cutting tray 224.
[0107] The cutting steps of the cutting module 200 in this embodiment are:
[0108] Step S30: The screw mechanism drives the cutting tray 224 to move toward the cutting operation device 230. After the positioning sensor 225 receives the signal that the cutting tray 224 has moved into position for the first time, the screw mechanism stops the movement of the cutting tray 224. This is the starting point of the cutting positioning, corresponding to the tripping position A.
[0109] Step S32: The screw mechanism drives the cutting tray 224 to continue moving the distance Dab, so that the tool of the cutting operation device 230 corresponds to the position of the first bimetallic strip B, and the tool of the cutting operation device 230 cuts downward the connecting rod 8 corresponding to the first bimetallic strip B.
[0110] Step S33: The screw mechanism drives the cutting tray 224 to continue moving the distance Dbc, so that the tool of the cutting operation device 230 corresponds to the position of the second bimetallic plate C, and the tool of the cutting operation device 230 cuts downward the connecting rod 8 corresponding to the second bimetallic plate C.
[0111] Step S34: the screw mechanism drives the cutting tray 224 to continue moving the distance Dcd, so that the tool of the cutting operation device 230 corresponds to the position of the third bimetallic strip D, and the tool of the cutting operation device 230 cuts downwardly the connecting rod 8 corresponding to the third bimetallic strip D.
[0112] Step S35 : the screw mechanism drives the cutting tray 224 to move to the cutting transfer device 240 , and the cutting transfer device 240 takes away the assembly component 7 and puts it back to the first conveying device 310 .
[0113] like Figure 14 The cutting and feeding device 210 of this embodiment is shown. The cutting and feeding device 210 includes a dividing mechanism and a loading and transferring mechanism. The dividing mechanism is used to sort the assembly parts 7. The loading and transferring mechanism takes away the assembly parts 7 in sequence and places them on the cutting tray 224 of the cutting and conveying device 220.
[0114] Specifically, the material distribution mechanism includes a base 2111 and a support 2112 connected to each other, and a material distribution movement mechanism 2113 connected to the support 2112. The base 2111 is connected to the silo 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 loading transfer mechanism can grab the assembly component 7 on the support 2112. A material distribution sensor 2114 is also provided on the base 2111.
[0115] The loading and transferring mechanism includes a loading movement mechanism 2121 and a loading adsorption unit 2122 arranged on the loading movement mechanism 2121. The loading movement mechanism 2121 can drive the loading adsorption unit 2122 to contact the assembly part 7 in the dividing mechanism. After the loading adsorption unit 2122 absorbs and fixes the assembly part 7, the loading movement mechanism 2121 drives the loading adsorption unit 2122 to move to the cutting tray 224 of the cutting and conveying device 220, and then allows the loading adsorption unit 2122 to release the assembly part 7, thereby realizing the process of dividing and loading the assembly part 7.
[0116] It is understandable that other methods can also be used to replace the loading adsorption unit 2122 to remove the assembly component 7, such as common clamping units such as clamping cylinders and grippers, which all fall within the scope of protection of the present invention.
[0117] like Figure 14The cutting transfer device 240 of this embodiment is shown, and its structure and operation process are basically the same as those of the above-mentioned loading and transfer mechanism.
[0118] The unloading transfer mechanism includes an unloading movement mechanism 241 and an unloading adsorption unit 242 arranged on the unloading movement mechanism 241. The unloading movement mechanism 241 can drive the unloading adsorption unit 242 to contact the assembly part 7 in the cutting tray 224 of the cutting conveying device 220. After the unloading adsorption unit 242 absorbs and fixes the assembly part 7, the unloading movement mechanism 241 drives the unloading adsorption unit 242 to move to the first conveying device 310, and then allows the unloading adsorption unit 242 to release the assembly part 7, thereby realizing the process of unloading the assembly part 7.
[0119] In this embodiment, a loading sensor and a unloading sensor are respectively provided at both ends of the lead screw mechanism of the cutting and conveying device 220. The loading sensor is arranged at one end close to the cutting and feeding device 210, and the unloading sensor is arranged at one end close to the cutting and transferring device 240. The positioning plate 226 on the side of the cutting tray 224 that cooperates with the positioning sensor 225 also cooperates with the loading sensor and the unloading sensor respectively. When the cutting tray 224 moves close to the cutting and feeding device 210 and the cutting transfer device 240 under the drive of the lead screw, the loading sensor and the unloading sensor can receive the moving into position signal.
[0120] Furthermore, the cutting conveyor 220 is provided with a loading and unloading unlocking push rod at each end of the screw mechanism, i.e., on one side of the loading and unloading sensors, respectively. When the cutting tray 224 moves toward either end, the clamping push rod 227 is unlocked by the unlocking push rod. Alternatively, a separate manipulator and motion mechanism could be provided to independently drive the clamping push rod 227, and this would fall within the scope of protection of the present invention.
[0121] The loading steps of the cutting module 200 in this embodiment are as follows:
[0122] Step S41: The screw mechanism drives the cutting tray 224 to move toward the cutting and feeding device 210. When the loading sensor detects that the cutting tray 224 has moved into position, the clamping push rod 227 on the cutting tray 224 is pushed open and unlocked by the loading unlocking push rod.
[0123] Step S42: After step S41 is completed, the feeding motion mechanism 2121 drives the feeding adsorption unit 2122 to contact the assembly component 7 in the material distribution mechanism;
[0124] Step S43: After step S42 is in place, the loading adsorption unit 2122 absorbs and fixes the assembly component 7;
[0125] Step S44: After step S43 is completed, the loading motion mechanism 2121 drives the loading adsorption unit 2122 to move onto the cutting tray 224 of the cutting conveyor 220;
[0126] Step S45: After step S44 is in place, the loading adsorption unit 2122 releases the assembly component 7;
[0127] Step S46: The screw mechanism drives the cutting tray 224 away from the cutting and feeding device 210, and the clamping push rod 227 on the cutting tray 224 moves away from the loading and unlocking push rod, and the clamping push rod 227 clamps the assembly component 7 on the cutting tray 224;
[0128] The step of dividing the materials simultaneously with the step S44 is also included:
[0129] Step S44': When the loading motion mechanism 2121 drives the loading adsorption unit 2122 to remove the assembly component 7 on the support 2112, the material distribution motion mechanism 2113 drives the support 2112 to reset. After the support 2112 is reset, the subsequent assembly component 7 on the base 2111 is moved to the support 2112 under the action of the vibrator;
[0130] Step S45': After the material distribution sensor 2114 on the base 2111 senses that there is an assembly component 7 on the support 2112, the material distribution movement mechanism 2113 drives the support 2112 and the base 2111 to be dislocated, and pushes the assembly component 7 to one side again, so that the loading and transfer device can take away the assembly component 7 next time.
[0131] After step S46 is completed, the cutting is performed from step S30 to step S36, and then step S37 is performed: the screw mechanism drives the cutting tray 224 to move to the cutting transfer device 240, and the cutting transfer device 240 removes the assembly component 7 and returns it to the first conveying device 310. Step S37 includes the following steps:
[0132] Step S371: The screw mechanism drives the cutting tray 224 to move toward the cutting transfer device 240. When the unloading sensor detects that the cutting tray 224 has moved into position, the clamping push rod 227 on the cutting tray 224 is pushed open and unlocked by the unloading unlocking push rod.
[0133] Step S372: After step S371 is in place, the blanking motion mechanism 241 drives the blanking suction unit 242 to contact the assembly component 7 in the cutting tray 224;
[0134] Step S373: After step S372 is in place, the material suction unit 242 sucks and fixes it to the assembly part 7;
[0135] Step S374: After step S373 is completed, the material removal movement mechanism 241 drives the material removal adsorption unit 242 to move onto the first conveying device 310;
[0136] Step S375 : After step S374 is completed, the unloading adsorption unit 242 releases the assembly component 7 .
[0137] The rotating unit 223, the material distribution motion mechanism 2113, the loading motion mechanism 2121 and the unloading motion mechanism 241 described in this embodiment are all existing technologies, and can be composed of a plurality of horizontal and vertical moving cylinders, or a combination of horizontal and vertical moving electric cylinders, and the cylinders or electric cylinders are provided with sensors for sensing the positioning of the action, which can realize at least one linear motion or rotational motion in the horizontal and vertical directions, and can also realize movement or rotation in a plane or three-dimensional space, which is not specifically limited in this embodiment.
[0138] The present invention also provides a method for assembling a motor starter, comprising the following steps:
[0139] Step S0: Connecting the basic component 6 to a test power supply;
[0140] Step S1: pushing the temperature compensation mechanism 4 of the base component 6 until the operating mechanism 5 of the base component 6 is tripped, so that the temperature compensation mechanism 4 stops at the tripping position A;
[0141] Step S2: sequentially measuring the distances between the plurality of bimetallic strips on the plurality of base components 6;
[0142] Step S30: driving the assembly component 7 to move to the cutting module 200;
[0143] Step S31: The assembly component 7 is driven to move in sequence according to the distances between the plurality of bimetallic strips measured in step S2, and the assembly component 7 is cut after each movement.
[0144] The assembly method of the electric motor starter created by the present invention performs a tripping operation and measurement on each specific electric motor starter in real time during the assembly process of the electric motor starter, and cuts the assembly parts based on the specific measurements. The method has high efficiency and high precision, and the matching degree between the assembly parts and the electric starter is high to ensure the product's quality.
[0145] The present invention creates a method for cutting a guide plate, in which the cut guide plate is used to assemble the motor starter, which is mainly achieved by the dynamic cutting equipment. After cutting, the assembly component 7 can be assembled with the corresponding basic component 6, or it can be transferred to a subsequent workstation for reassembly. No specific restrictions are made here, but all fall within the scope of protection created by the present invention.
[0146] Furthermore, step S2 adopts a visual capture measurement method, including the second measurement device 140, and step S2 includes the following steps:
[0147] Step S20: the basic component 6 is moved to the second power supply device, and the second power supply device connects the basic component 6 to the second test power supply;
[0148] Step S21: The second upper motion mechanism 1431 drives the second tripping member 1432 and the second measuring module to move to one side of the temperature compensation mechanism 4;
[0149] Step S22: The second upper motion mechanism 1431 drives the second tripping member 1432 to move toward the temperature compensation mechanism 4, so that the second tripping member 1432 pushes the temperature compensation mechanism 4 until no current flows through the base component 6. Then, the second upper motion mechanism 1431 stops moving, so that the temperature compensation mechanism 4 stops at the tripping position A.
[0150] Step S23: the first visual measurement unit 1441 directly photographs the top surface of the foundation component 6 from the top side, and captures the tripping position A;
[0151] Step S24: The second visual measurement unit 1442 photographs the side surface of the base component 6 through the prism, and captures the positions of the three bimetallic strips respectively;
[0152] Step S25: Calculate the distance from each of the three bimetallic strips to the tripping position A;
[0153] Step S26: Calculate the distance between two adjacent bimetallic strips respectively, and the absolute value of the difference between the distances from the adjacent bimetallic strips to the tripping position A is the distance between the two adjacent bimetallic strips;
[0154] Step S27: The second power supply device and the second operating device are reset, and the base component 6 is separated from the second power supply device.
[0155] Step S20 constitutes the step S0, steps S21 and 22 constitute the step S1, and steps S23 to S216 constitute the step S2.
[0156] This embodiment has three bimetallic strips, which are the third bimetallic strip D, the second bimetallic strip C, and the first bimetallic strip B from right to left:
[0157] The distance from the third bimetallic strip D to the tripping position A is Dad;
[0158] The distance from the second bimetallic strip C to the tripping position A is Dac;
[0159] The distance from the first bimetallic strip B to the tripping position A is Dab;
[0160] The distance Dcd from the third bimetallic strip D to the second bimetallic strip C is Dad-Dac;
[0161] The distance Dab from the second bimetallic strip C to the first bimetallic strip B is Dac-Dab.
[0162] Furthermore, the step S2 adopts a mechanical contact measurement method, including the first measuring device 120, and the step S2 includes the following steps:
[0163] Step S10: The first power supply device connects the basic component 6 to the first test power supply;
[0164] Step S11: The first tripping member 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 member 1232;
[0165] Step S12: The touch rod 1241 pushes the bimetallic strips in sequence, and each time the touch rod 1241 rotates, the corresponding position of the bimetallic strips is recorded;
[0166] Step S13: Calculating the distances from the plurality of bimetallic strips to the tripping position A according to steps S11 and S12;
[0167] Step S14: the first power supply device and the first operating device are reset, and the base component 6 is separated from the first power supply device;
[0168] Step S15 : the resetting device 130 closes the operating mechanism 5 of the base component 6 .
[0169] Furthermore, both measurement methods are used in step S2, with the first measuring device 120 performing an initial inspection and then the second measuring device 140 performing a re-inspection. That is, step S2 first performs steps S11 to S13 for an initial inspection and then performs steps S21 to S25 for a re-inspection.
[0170] It is understandable that step S2 may be performed only through the mechanical contact testing method or only through the visual capture measurement method, both of which fall within the protection scope of the present invention.
[0171] Furthermore, the step S31 is implemented by the cutting module 200, and the step S31 includes the following steps:
[0172] Step S30: The screw mechanism drives the cutting tray 224 to move toward the cutting operation device 230. After the positioning sensor 225 receives the signal that the cutting tray 224 has moved into position for the first time, the screw mechanism stops moving.
[0173] Step S32: Based on the data measured by the measuring module 100, the cutter in the cutting operation device 230 punches down for the first time and resets after cutting.
[0174] Step S33: The screw mechanism moves the cutting tray 224 by the same distance D21 as measured by the measuring module 100 between the first bimetallic strip B and the second bimetallic strip C, until the positioning sensor 225 receives a second signal indicating that the cutting tray 224 has moved into position.
[0175] Step S34: the cutter in the cutting operation device 230 punches down for cutting for the second time and resets after cutting;
[0176] Step S35: The lead screw mechanism drives the cutting tray 224 to continue moving 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 indicating that the cutting tray 224 has moved into position for the third time;
[0177] Step S36: The cutter in the cutting operation device 230 punches down for a third time and resets after cutting;
[0178] Step S37 : the screw mechanism drives the cutting tray 224 to move to the cutting transfer device 240 , and the cutting transfer device 240 takes away the assembly component 7 and puts it back to the first conveying device 310 .
[0179] Specifically, the cutting conveyor module comprises a cutting and conveying module and a cutting and operating module. The cutting and conveying module has the same structure as the cutting and conveying device 220, and the cutting and operating module has the same structure as the cutting and operating device 230. The cutting and conveying module is provided with a cutting tray 224 for securing the assembly component 7. In step S31, the cutting and conveying module first moves the assembly component 7 to an initial position corresponding to the tripping position A, and then performs multiple movements, each movement distance being the distance between the multiple bimetallic strips measured in step S2. In this embodiment, three movements are performed, each distance being the distances Dab, Dbc, and Dcd between the three bimetallic strips, respectively.
[0180] Furthermore, it also includes a cutting and feeding module, which has the same structure as the cutting and feeding device 210. The cutting and feeding module sorts the multiple assembly components 7 and then sends them to the cutting module.
[0181] Furthermore, it also includes a cutting transfer module, which has the same structure as the cutting transfer device 240. The cutting transfer module delivers the cut assembly parts 7 to the corresponding basic components.
[0182] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art to which the present invention belongs, simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.
Claims
1. A dynamic cutting device, characterized in that: The invention comprises a measuring module (100), a cutting module (200), and a control unit respectively connected to the measuring module (100) and the cutting module (200); the measuring module (100) comprises a first measuring device (120) and a second measuring device (140) respectively used to measure a basic component (6); the first measuring device (120) and the second measuring device (140) respectively comprise a power supply device and an operating device; the power supply device is used to connect the basic component (6) to a test power supply; the operating device is used to push the basic component (6) to disconnect the test power supply to determine a tripping position (A); the first measuring device (120) comprises a first measuring module; the second measuring device (140) comprises a second measuring module; The first measuring module comprises a touch rod (1241) and a displacement sensor (1242); the touch rod (1241) rotates when in contact with a bimetallic strip of a base component (6); the touch rod (1241) is rotatably mounted on a first upper motion mechanism (1231); the displacement sensor (1242) is disposed on the first upper motion mechanism (1231); and a spring (1243) for limiting the touch rod (1241) is provided on the first upper motion mechanism (1231); The operating device of the first measuring device (120) comprises a first tripping member (1232), the first tripping member (1232) being arranged on the first upper motion mechanism (1231), the first upper motion mechanism (1231) being capable of driving the first tripping member (1232) to trigger the operating mechanism (5) of the base component (6) to trip, and the base component (6) will disconnect the connected test power supply when the test power supply is disconnected, the first upper motion mechanism (1231) stops, and the position of the first tripping member (1232) is the tripping position (A); The first upper motion mechanism (1231) continues to move, driving the touch rod (1241) to move relative to the base component (6), so that the touch rod (1241) touches the bimetallic strip on the base component (6); the control unit detects the rotation of the touch rod (1241) through the displacement sensor (1242), and records the position of the touch rod (1241); the position of the touch rod is the position of the bimetallic strip on the base component (6), so as to obtain the distance between the tripping position (A) measured by the first measuring module and the bimetallic strip on the base component (6); The second measuring module then measures the distance between the tripping position (A) and the bimetallic strip of the base component (6), and the control unit controls the cutting module (200) to cut the assembly component (7) based on the average of the data measured by the first measuring device (120) and the data measured by the second measuring device (140).
2. The dynamic cutting device according to claim 1, characterized in that: The first measurement module performs measurement by mechanical contact, and the second measurement module performs measurement by visual capture.
3. The dynamic cutting device according to claim 1, characterized in that: When the touch rod (1241) contacts the bimetallic strip, the displacement sensor (1242) also detects the rotation amplitude of the touch rod (1241); if the rotation amplitude of the touch rod (1241) exceeds a preset threshold, the corresponding basic component (6) is a defective product.
4. The dynamic cutting device according to claim 1, characterized in that: The second measurement module includes a first visual measurement unit (1441) and a second visual measurement unit (1442), the first visual measurement unit (1441) takes an image of the base component (6) from the top side, and the second visual measurement unit (1442) takes an image of the base component (6) from the horizontal side.
5. The dynamic cutting device according to claim 4, characterized in that: The operating device of the second measuring device (140) includes a second tripping member (1432), the second tripping member (1432) is arranged on a second upper motion mechanism (1431), and the second upper motion mechanism (1431) can drive the second tripping member (1432) to trigger the operating mechanism (5) of the base component (6) to trip, and the position of the second tripping member (1432) is the tripping position (A); the first visual measurement unit (1441) photographs the top side of the base component (6), and the control unit captures the position of the tripping position (A) based on the image of the top side of the base component (6); the second visual measurement unit (1442) photographs the horizontal side of the base component (6), and the control unit captures the distance from the bimetallic strip to the tripping position (A) based on the image of the horizontal side of the base component (6).
6. The dynamic cutting device according to claim 1, characterized in that: The cutting module (200) comprises a cutting feeding device (210), a cutting conveying device (220) and a cutting operation device (230). The cutting feeding device (210) delivers the assembly component (7) to the cutting conveying device (220). The cutting conveying device (220) drives the assembly component (7) to move according to data measured by the measuring module (100), and then the assembly component (7) is cut by the cutting operation device (230).
7. The dynamic cutting device according to claim 6, characterized in that: The cutting and conveying device (220) includes a screw mechanism consisting of a transverse nut (221) and a rotating screw (222), and a cutting tray (224) and a rotating unit (223) respectively connected to the transverse nut (221) and the rotating screw (222). The cutting tray (224) is used to fix the assembly component (7). The rotating unit (223) can drive the rotating screw (222) to rotate, so that the rotating screw (222) drives the transverse nut (221) to drive the cutting tray (224) thereon to pass through the cutting operation device (230).
8. The dynamic cutting device according to claim 7, characterized in that: The cutting conveying device (220) is provided with a positioning sensor (225) on one side of the lead screw mechanism, and the transverse nut (221) or the cutting tray (224) is provided with a positioning plate (226) that cooperates with the positioning sensor (225). The positioning sensor (225) determines whether the cutting tray (224) moves according to data measured by the measuring module (100) by detecting the position of the positioning plate (226).
9. The dynamic cutting device according to claim 6, characterized in that: The cutting and feeding device (210) includes a material distribution mechanism and a material feeding and transferring mechanism. The material distribution mechanism includes a base (2111) and a support (2112) connected to each other, and a material distribution movement mechanism (2113) connected to the support (2112). The base (2111) is connected to a silo for storing assembly components (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). The material feeding and transferring mechanism includes a material feeding movement mechanism (2121) and a material feeding adsorption unit (2122) arranged on the material feeding movement mechanism (2121).
Citation Information
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