A kind of online adjustment workbench for flow divider

Abstract

The present invention provides a shunt online adjustment workbench, including: a platform for support; a first linear module arranged on the platform; a cutting device arranged at one end of the first linear module, the cutting device is used to cut the shunt and adjust the resistance value of the shunt; a clamp arranged on the guide rail of the first linear module, the clamp is used to clamp the shunt, the clamp can move along the guide rail direction of the first linear module, drive the shunt to move along the guide rail direction of the first linear module to the cutting device, and realize the cutting of the shunt by the cutting device; a measuring component is used to measure the current and the voltage drop at both ends of the shunt before and during the cutting process. The present invention adjusts the resistance value of the shunt by cutting with the cutting device, and can measure the current and the voltage drop at both ends of the shunt during the cutting process by the measuring component, can realize synchronous calibration and calibration, and is suitable for the production of high-precision current sensors.

Description

Technical Field

[0001] The invention relates to a current sensor, in particular to an online adjustment workbench for a shunt. Background Art

[0002] The current sensor is a detection device that can detect the information of the measured current and transform the detected information into an electrical signal or other form of signal output that meets certain standards or specific needs according to certain rules to meet the requirements of information acquisition, transmission, processing, storage, display, recording and control.

[0003] Current sensors are a basic sensor in many fields, involving all aspects of daily life and even the national economy. They are widely used in motors, frequency converters, power transformers, new energy vehicles, photovoltaic inverters, wind power, rail transit, ship integrated power and electric propulsion, aviation power supply and other fields, playing an important role. Current sensors can be divided into Hall sensing type, shunt type, etc. according to different measurement principles. Hall sensing current sensors are made based on the Hall effect principle. When current passes through a carrier perpendicular to the external magnetic field, the carriers are deflected, and an electric field is generated in the direction perpendicular to the current and the magnetic field, thereby generating a potential difference at both ends of the carrier. This phenomenon is the Hall effect, and this potential difference is called the Hall potential difference. The size of the Hall potential difference U is proportional to the product of the current I and the magnetic flux density B. By measuring the size of the Hall potential difference, the current passing through the carrier can be indirectly measured. When detecting current, the Hall effect current sensor undergoes an electrical-magnetic-electrical insulation isolation conversion, so non-contact measurement of current can be achieved. However, it is often difficult to achieve high accuracy and is easily interfered. In a shunt-type current sensor, the shunt is the key component. The essence of a shunt is a high-precision resistor. Shunt-type current sensors operate according to Ohm's law: current flows into the input terminal of the shunt, and as it passes through the shunt, the voltage between its input and output terminals is measured. Since the voltage between the input and output terminals of the shunt is proportional to the current flowing through the shunt, the sensed voltage can be converted back to represent the current by applying an appropriate scaling factor. According to Ohm's law, this scaling factor is the resistance R of the shunt.

[0004] At present, high-precision current sensors are generally shunt-type. Compared with Hall sensor-type current sensors, shunt-type current sensors do not have any magnetic components. Therefore, shunt-type current sensors are less susceptible to interference and can achieve higher accuracy. In addition, the shunt structure is simple and cheaper than Hall sensor. Therefore, shunt-type current sensors are widely used.

[0005] From the principle of the shunt current sensor, under a certain current, the resistance of the shunt directly determines the voltage of the output terminal. In order to achieve accurate measurement of current, the resistance of the shunt must be precise, often requiring an accuracy of 1‰ or more. In the process of shunt manufacturing, according to the law of resistance, its resistance value can be designed according to its material properties (resistivity ρ) and physical dimensions (length L and cross-sectional area S). However, due to problems such as material uniformity and the accuracy of the production process, the resistance value of the shunt actually manufactured is inevitably different from the target value. Due to the high requirements of the shunt for resistance accuracy and the deviation in the production process, calibration and calibration are essential steps. The purpose of calibration is to measure the actual resistance value of the shunt. Calibration is to adjust the actual resistance value to within the allowable deviation range of the target value.

[0006] In the existing scheme, the calibration and demarcation processes are two separate steps, that is, the calibration and demarcation of the shunt are implemented offline: first, the calibration is performed, the resistance value of the actual product is measured, and the deviation with the product target value is compared. If the deviation is large, for example, the actual resistance value is smaller than the target value and exceeds the allowable error deviation range, the resistance value can be made to fall within the allowable error range through the calibration process. For example, according to Ohm's law, the resistance value R is increased by changing the physical size (reducing the cross-sectional area S). Then recalibrate, measure the resistance value of the calibrated product and observe whether it is within the allowable error range of the design value. If the deviation of the actual resistance value is still large, repeat the above steps until the resistance value of the actual product falls within the allowable error range of the target value.

[0007] The above-mentioned offline calibration and calibration method requires repeated calibration and calibration. The existing solution is often for operators to manually measure and calibrate, which requires high experience and operation of operators, and the overall production efficiency is relatively low. In addition, during calibration, if the calibration is over-calibrated, such as in the above example, the resistance value is increased too much, there may be no way to calibrate back, resulting in scrapping due to resistance value deviation. In addition, there is no corresponding treatment measure for the metal dust generated during the calibration process, which is not only a safety hazard, but also may affect the health of personnel and the accuracy of the product.

[0008] Therefore, it is necessary to develop a working platform that can adjust the resistance value of the shunt online to achieve online and synchronous calibration and marking of the resistance value. Summary of the invention

[0009] In view of the defects in the prior art, an object of the present invention is to provide an online adjustment workbench for a diverter.

[0010] The present invention provides a diverter online adjustment workbench, comprising:

[0011] a platform for support;

[0012] A first linear module disposed on the platform;

[0013] A cutting device is arranged at one end of the first linear module, and the cutting device is used to cut the shunt and adjust the resistance value of the shunt;

[0014] A clamp is arranged on the guide rail of the first linear module, the clamp is used to clamp the diverter, the clamp can move along the guide rail of the first linear module, drive the diverter to move along the guide rail of the first linear module to the cutting device, so that the cutting device can cut the diverter;

[0015] A measuring component is connected to the shunt and is used to measure the current and the voltage drop across the shunt before and during cutting.

[0016] Preferably, the diverter online adjustment workbench includes a dust suction device for collecting dust generated during the cutting process, and the air blowing nozzle of the dust suction device is fixed on the clamp.

[0017] Preferably, the diverter online adjustment workbench includes a picking device arranged on the platform, which can pick up the unqualified diverters after cutting from the fixture and collect them.

[0018] Preferably, the picking device comprises:

[0019] A gantry, wherein a servo motor, a drag chain slot and a second linear module are provided on the gantry, wherein the drag chain slot and the guide rails of the second linear module are arranged along the length direction of the horizontal side of the gantry, the set chain slot is located at the upper part of the horizontal side of the gantry, and the linear module is located at the side of the horizontal side of the gantry;

[0020] A slide cylinder, the slide cylinder is arranged on the second linear module, the slide cylinder can move along the guide rail direction of the second linear module, an air claw is arranged at the bottom of the slide cylinder, the air claw is used to pick up the diverter, and the slide cylinder can drive the air claw to extend and retract in the vertical direction;

[0021] A material box for accommodating unqualified diverters is arranged below the platform and below the gantry.

[0022] Preferably, the air gripper comprises:

[0023] An adjusting rod, the adjusting rod is horizontally arranged at the bottom of the air gripper; a scale is provided in the length direction of the adjusting rod;

[0024] The claw comprises a first component and a second component, the first component and the second component are connected to the adjustment rod, and the distance between the first component and the second component is adjustable.

[0025] Preferably, the clamp comprises:

[0026] A base plate for supporting and fixing;

[0027] A first adjustment fixing plate and a second adjustment fixing plate are arranged on the bottom plate for supporting and clamping the diverter, the first adjustment fixing plate and the second adjustment fixing plate are L-shaped parts, the first adjustment fixing plate and the second adjustment fixing plate are symmetrically arranged along the vertical axis, and a hollow space is formed between the first adjustment fixing plate and the second adjustment fixing plate;

[0028] A pressing cylinder is arranged on the bottom plate, and the pressing cylinder is arranged on one side of the hollow space, and the pressing cylinder is supported above the bottom plate by a supporting member; the supporting member is provided with an air nozzle air inlet joint;

[0029] A first test probe adjustment component and / or a second test probe adjustment component, wherein the first test probe adjustment component is arranged on one side of the clamping cylinder and is located on a side close to the hollow space, and the clamping cylinder drives the test probe of the first test probe adjustment component to move in a horizontal direction; the first test probe adjustment component is connected to the measuring component and is used to collect the current and voltage of the shunt; the second test probe adjustment component is arranged in the hollow space, and the second test probe adjustment component drives the test probe to move in a height direction of the hollow space; the second test probe adjustment component is connected to the measuring component and is used to collect the current and voltage of the shunt;

[0030] The first test copper block and the second test copper block are used for transmitting current, and the first test copper block and the second test copper block are respectively arranged on the top of the first adjustment fixing plate and the second adjustment fixing plate; the shunt is arranged on the first test copper block and the second test copper block; the first test copper block and the second test copper block are respectively provided with a first copper nose and a second copper nose, and the first copper nose is used to connect the positive pole of the current source, and the second copper nose is used to connect the negative pole of the current source.

[0031] Preferably, the clamp comprises:

[0032] A first pressing block, wherein the first pressing block is arranged on the upper surface of the first test copper block;

[0033] a first spinning cylinder, wherein the first spinning cylinder is connected to the first pressing block, and the first pressing block clamps the diverter through the first spinning cylinder;

[0034] A second pressing block is arranged on the upper surface of the second test copper block.

[0035] The second spinning cylinder is connected to the second pressing block, and the second pressing block is clamped by the second spinning cylinder.

[0036] Preferably, the bottom plate is provided with a plurality of evenly distributed positioning holes for fixing components supported on the bottom plate, and the fixing positions of the components on the bottom plate can be adjusted through the positioning holes.

[0037] Preferably, the cutting device comprises:

[0038] A third linear module, wherein the guide rail of the third linear module is vertically arranged on the platform, and the third linear module comprises a servo motor and a mounting assembly, and the mounting assembly is driven by the servo motor to move along the guide rail direction of the third linear module;

[0039] A driving motor disposed on the mounting assembly, driven by the mounting assembly to move along the track direction of the linear module;

[0040] A cutting blade is connected to the driving motor through a coupling, and the driving motor drives the cutting blade to rotate.

[0041] Preferably, the diverter online adjustment workbench includes an industrial computer:

[0042] The industrial computer is connected to the first linear module, and controls the first linear module to drive the diverter to move, so that the diverter moves to a specified position;

[0043] The industrial computer is connected to the cutting device to control the cutting device to start or stop cutting operation.

[0044] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0045] The above structure of the present invention is provided with a linear module and a cutting device, and the shunt is driven to move to the cutting device by the linear module, and the resistance value of the shunt is adjusted by cutting through the cutting device. The current of the shunt and the voltage drop value at both ends during the cutting process can be measured by the measuring component, so as to realize synchronous calibration and calibration; the cutting device can make the cutting piece move accurately through the high-precision servo motor and the driving motor arranged in the linear module, so as to realize accurate calibration of the resistance value; during calibration, the cutting speed of the cutting device (calibration speed of the resistance value) can be adjusted in real time according to the gap between the actual resistance value and the target resistance value, so as to realize the unity of high speed and high precision in the resistance value calibration process.

[0046] The above structure of the present invention can effectively collect the dust generated during the cutting calibration process by arranging a dust collecting device, thereby avoiding polluting the environment and preventing the diverter from being contaminated by dust and affecting the accuracy.

[0047] The above structure of the present invention can pick up and collect unqualified products by arranging a picking device.

[0048] The above structure of the present invention supports users to flexibly configure parameters and calculate the resistance value of the shunt in real time by setting an industrial computer installed with control software, thereby automatically completing the calibration work of the high-precision current sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0050] Figure 1 It is a structural schematic diagram of a diverter online adjustment workbench according to a preferred embodiment of the present invention;

[0051] Figure 2 It is a structural schematic diagram of a diverter online adjustment workbench according to a preferred embodiment of the present invention;

[0052] Figure 3 It is a structural schematic diagram of a fixture of a diverter online adjustment workbench according to a preferred embodiment of the present invention;

[0053] Figure 4 It is a structural schematic diagram of a fixture of a diverter online adjustment workbench according to a preferred embodiment of the present invention;

[0054] Figure 5 It is a structural schematic diagram of a pick-up device of a diverter online adjustment workbench according to a preferred embodiment of the present invention;

[0055] Figure 6 It is a structural schematic diagram of a cutting device of a flow divider online adjustment workbench according to a preferred embodiment of the present invention;

[0056] The marks in the figure are respectively represented as follows: 1 is an electric control cabinet, 2 is a touch screen, 3 is a display, 4 is a three-color lamp, 5 is an industrial computer, 6 is a 6.5-digit multimeter, 7 is a cutting device, 8 is a fixture, 9 is a current source, 10 is a platform, 11 is a first linear module, 12 is a bottom plate, 13 is a first drag chain connecting plate, 14 is a clamping cylinder, 15a is a first copper nose, 15b is a second copper nose, 16a is a first clamping block, 16b is a second clamping block, 17a is a first test copper block, 17b is a second test copper block, 18a is a first spinning cylinder, 18b is a second spinning cylinder, 19 is a first Test probe adjustment assembly, 20a is the first adjustment fixing plate, 20b is the second adjustment fixing plate, 21 is the second test probe adjustment assembly, 22 is the gantry, 23 is the second servo motor, 24 is the second linear module, 25 is the second drag chain connecting plate, 26 is the slide cylinder, 27 is the air claw, 28 is the claw, 29 is the drive motor, 30 is the third servo motor, 31 is the third linear module, 32 is the first mounting assembly, 33 is the second mounting assembly, 34 is the protective cover, 35 is the main shaft, 36 is the cutting disc, 37 is the mounting block, 38 is the coupling, and 39 is the third drag chain connecting plate. DETAILED DESCRIPTION

[0057] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention. The parts not described in detail in the following embodiments can all be implemented using existing components.

[0058] Reference Figure 1 As shown, it is a structural schematic diagram of a flow divider online adjustment workbench of a preferred embodiment of the present invention, which includes a platform 10, a first linear module 11, a fixture 8, a cutting device 7 and a measuring component. The first linear module 11, the cutting device 7 and the measuring component are supported on the platform 10. As a preferred embodiment, Figure 1As shown, a box body is included, and the box body includes a multi-layer platform 10 structure, and one layer is used as the above-mentioned platform 10; the box body can be used to accommodate other preferred components, such as an industrial computer 5, a three-color lamp 4, etc. Among them, the first linear module 11 is a high-precision linear module, which is driven by a first servo motor. The cutting device 7 is arranged at one end of the first linear module 11, and the cutting device 7 is used to cut the shunt, and the resistance value is adjusted by cutting the shunt to calibrate the resistance value of the shunt. The principle of calibrating the resistance value of the shunt is based on the law of resistance. The resistance value is inversely proportional to the cross-sectional area of ​​the resistor. Since the resistance value of the shunt is intentionally made slightly smaller during design and production, by cutting the shunt and reducing its cross-sectional area, the resistance value can be increased and accurately tend to the target resistance value, so that the final resistance value of the shunt is highly consistent with the target value, thereby achieving the high precision of the factory current sensor.

[0059] In specific implementation, the moving speed of the cutting blade 36 of the cutting device 7, i.e., the cutting speed, is adjusted in real time according to the difference between the actual resistance value and the target resistance value. When the difference between the actual resistance value and the target resistance value is large, a relatively fast cutting is performed, and when the difference between the actual resistance value and the target resistance value is reduced, the cutting speed is slowed down to adjust the resistance value with high precision. In this way, the resistance value is calibrated with high speed and high precision. The calibration speed of the resistance value can be adjusted in real time according to the difference between the actual resistance value and the target resistance value, so as to achieve the unity of high speed and high precision in the resistance value calibration process.

[0060] The clamp 8 is arranged on the guide rail of the first linear module 11. The clamp 8 is used to clamp the diverter. The first servo motor drives the first linear module 11 to drive the clamp 8 and the diverter to move along the guide rail direction to the cutting device 7, so that the cutting device 7 can cut the diverter. The use of a high-precision linear module can accurately deliver the diverter to the specified position.

[0061] The measuring component is connected to the shunt. The measuring component is used to measure the current and the voltage drop at both ends of the shunt before and during cutting. As a preferred method, the measuring component adopts a 6.5-digit multimeter 6. The 6.5-digit multimeter 6 has an accuracy of 6.5 digits or more, which can ensure the accuracy of measurement and provide an accurate reference for calibration. The high detection frequency can realize the rapid measurement of voltage and current values, and achieve rapid update of resistance values. The rapid update of resistance values ​​helps to synchronize calibration and avoid excessive cutting due to slow updating, which causes the shunt to be scrapped. While performing cutting calibration, synchronous measurement can be performed, and the resistance value of the shunt can be calculated in real time through the existing control software. When the resistance value reaches the target value, the cutting device 7 is turned off to stop the cutting action, thereby realizing online and synchronous calibration and calibration of the resistance value.

[0062] In other preferred embodiments, the online adjustment workbench of the diverter includes a dust suction device for collecting dust generated during the cutting process, and the air nozzle of the dust suction device is fixed on the fixture 8. It can avoid polluting the environment and prevent the diverter from being contaminated by dust and affecting the accuracy. As an optimal method, the dust suction device can adopt a vacuum dust removal system. A large amount of dust will be generated in the cutting process of the diverter. The dust may pollute the factory environment and endanger the health of the operators after being inhaled into the human body; metal dust particles diffused in the air are also a safety hazard. When reaching a certain concentration, it may cause combustion and explosion accidents; secondly, the current sensor has very high accuracy. If it is contaminated with metal dust, it is easy to cause changes in resistance value and bring instability of resistance value, which may affect the accuracy and quality of the current sensor leaving the factory. The configuration of a vacuum dust removal system can eliminate the above-mentioned hidden dangers.

[0063] In some other preferred embodiments, the diverter online adjustment workbench includes a picking device arranged on the platform 10, which can pick up and collect the unqualified diverters after cutting from the fixture 8.

[0064] In other preferred embodiments, the clamp 8 includes a base plate 12, which plays a role of bearing and fixing. A first adjustment fixing plate 20a and a second adjustment fixing plate 20b are provided on the base plate 12 for supporting and clamping the diverter. The first adjustment fixing plate 20a and the second adjustment fixing plate 20b are L-shaped components. The horizontal edges of the first adjustment fixing plate 20a and the second adjustment fixing plate 20b are used to connect the base plate 12. A plurality of through holes that penetrate the thickness direction of the first adjustment fixing plate 20a and the second adjustment fixing plate 20b are provided on the horizontal edges of the first adjustment fixing plate 20a and the second adjustment fixing plate 20b, which can be connected to the base plate 12 by bolts and other connecting parts. The first adjustment fixing plate 20a and the second adjustment fixing plate 20b are symmetrically arranged along the vertical axis, and a hollow space is formed in the middle of the first adjustment fixing plate 20a and the second adjustment fixing plate 20b. A clamping cylinder 14 is arranged on the bottom plate 12, and the clamping cylinder 14 is arranged on one side of the hollow space. The clamping cylinder 14 is supported above the bottom plate 12 by a support member. A first drag chain connecting plate 13 is arranged on the other side of the clamping cylinder 14, which is connected to the cylinder body to drive the drag chain. The support member is provided with an air nozzle air inlet joint to facilitate the waste generated to be blown into the dust suction port.

[0065] A first test probe adjustment assembly 19 is provided on one side of the clamping cylinder 14. The first test probe adjustment assembly 19 is close to one side of the hollow space. The clamping cylinder 14 drives the test probe of the first test probe adjustment assembly 19 to move in the horizontal direction, and inserts the test probe of the first test probe adjustment assembly 19 from one side into the test hole located on the side of the diverter. The first test probe adjustment assembly 19 can be suitable for a variety of diverters with test holes on the side. The test probe is connected to a multimeter to output data in real time. When the clamping cylinder 14 moves toward one side of the hollow space, the clamping cylinder 14 can control the entry and exit of the test probe on the one hand, and clamp the workpiece on the other hand.

[0066] The second test probe adjustment component 21 is arranged in the hollow space. The second test probe adjustment component 21 can drive the test probe to move along the vertical direction (height direction) of the hollow space. The test probe of the second test probe adjustment component 21 is inserted from bottom to top into the test hole at the bottom of the shunt, and the test probe is connected to the multimeter. The second test probe adjustment component 21 is suitable for shunts with various test holes at the bottom. The test probe is used to collect the voltage and current value data of the shunt and output the collected data to the digital multimeter in real time and transmit it to the host computer. By arranging the first test probe adjustment component 19 and the second test probe adjustment component 21 on the fixture 8, the test probe can be connected from the bottom or the side of the product. As a preferred embodiment, the test probes of the first test probe adjustment component 19 and the second test probe adjustment component 21 have built-in springs, which can be compressed up to 10mm.

[0067] The first test copper block 17a and the second test copper block 17b are respectively arranged on the top of the vertical sides of the first adjustment fixing plate 20a and the second adjustment fixing plate 20b. The first test copper block 17a and the second test copper block 17b are conductive blocks for transmitting current and serve as conductive medium modules. The shunt is installed on the first test copper block 17a and the second test copper block 17b, and the shunt is in contact with the upper surfaces of the first test copper block 17a and the second test copper block 17b.

[0068] A first copper nose 15a is provided on the first test copper block 17a for connecting the positive electrode of the current source 9; a second copper nose 15b is provided on the second test copper block 17b for connecting the negative electrode of the current source 9.

[0069] The second test probe adjustment component 21 includes an adjustment seat, which is fixed on the base plate 12. The adjustment seat is provided with a bottom test probe support. The test probe assembly is installed on the test probe seat for connecting and fixing the test probe. The test probe is used to collect the voltage and current value data of the shunt and output the collected data to the digital multimeter in real time and transmit it to the host computer, which plays the role of real-time data transmission. The test probe support is driven to move by the adjustment seat, so as to adjust the height position of the test probe to suit a variety of shunt types. The second test probe adjustment component 21 also includes a positioning pin, which is installed on the first test copper block 17a and the second test copper block 17b for locating the shunt position. The positioning mounting block is arranged on the adjustment seat for locating the position of the first test copper block 17a and the second test copper block 17b. In the specific implementation process, the position of the test probe can be manually adjusted according to the workpiece (X direction, Y direction, Z direction), and can be locked by screws. By manually adjusting the distance between the test probe position and its positioning mounting block, the corresponding positioning pin is replaced (replaced according to the product thickness and hole size), and 18 products can be applied.

[0070] The fixture 8 includes a first clamping block 16a, a first spinning cylinder 18a, a second clamping block 6b and a second spinning cylinder 18b, wherein the first clamping block 16a is arranged on the upper surface of the first test copper block 17a, the first clamping block 16a is connected to the first spinning cylinder 18a, and the first clamping block 16a can be pressed by the first spinning cylinder 18a to press the diverter, so that the contact is good and the cutting is stable. The second clamping block 6b is arranged on the upper surface of the second test copper block 17b, the second clamping block 6b is connected to the second spinning cylinder 18b, and the second clamping block 6b can be pressed by the second spinning cylinder 18b to press the diverter, ensuring good contact and stability during cutting. The first spinning cylinder 18a and the second spinning cylinder 18b are fixed on the horizontal sides of the first adjustment fixing plate and the second adjustment fixing plate respectively. The diverter is clamped from the top by the first spinning cylinder 18a and the second spinning cylinder 18b. The diverter is installed on the first test copper block 17a and the second test copper block 17b. The diverter contacts the upper surfaces of the first test copper block 17a and the second test copper block 17b. The first pressing cylinder 18a and the second pressing cylinder 18b drive the first clamping block 16a and the second clamping block 16b to clamp the two ends of the diverter.

[0071] In some other preferred embodiments, a plurality of evenly distributed positioning holes are provided on the bottom plate 12 for fixing components disposed on the bottom plate 12, and the fixing positions of the components can be adjusted through the positioning holes.

[0072] In other preferred embodiments, the picking device includes a gantry 22, a slide cylinder 26 and a material box; wherein the gantry 22 is provided with a drag chain slot and a second linear module 24, wherein the drag chain slot and the guide rails of the second linear module 24 are arranged along the length direction of the horizontal side of the gantry 22, the set chain slot is located at the upper part of the horizontal side of the gantry 22, and the linear module is located at the side of the horizontal side of the gantry 22. The second linear module 24 is driven by a second servo motor 23, and the second servo motor 23 is installed on the gantry 22. A second drag chain is installed in the drag chain slot.

[0073] The slide cylinder 26 is arranged on the second linear module 24. The slide cylinder 26 can be driven by the second servo motor 23 to move along the guide rail direction of the second linear module 24. The bottom of the slide cylinder 26 is provided with an air claw 27, which is used to pick up the diverter. The slide cylinder 26 can drive the air claw 27 to extend and retract in the vertical direction. The second drag chain connecting plate 25 is installed on the slide cylinder 26, connected to the cylinder body, and drives the second drag chain.

[0074] The material box is used to hold unqualified diverters. The material box is arranged below the platform 10. A through hole is provided on the platform 10 and communicated with the material box. The material box is located directly below the gantry 22. After the air gripper 27 picks up the unqualified product, it moves along the guide rail of the second linear module 24 under the drive of the servo motor and puts the unqualified product into the material box.

[0075] In other preferred embodiments, the air gripper 27 includes an adjusting rod and a claw 28; wherein the adjusting rod is horizontally arranged at the bottom of the air gripper 27; a scale is provided in the length direction of the adjusting rod; the claw 28 includes a first component and a second component, the first component and the second component are connected to the adjusting rod, and the distance between the first component and the second component is adjustable.

[0076] In other preferred embodiments, the cutting device 7 includes a third linear module 31, a drive motor 29, a cutting blade 36, a first mounting assembly 32 and a second mounting assembly 33; wherein the third linear module 31 is fixed on the first mounting assembly 32. The guide rail of the third linear module 31 is fixed along the length direction of the first mounting assembly 32. A mounting block 37 is provided at the bottom of the first mounting assembly 32 to fix the first mounting assembly 32 to the platform 10. When the cutting device 7 is installed on the platform 10, the guide rail of the third linear module 31 is vertically arranged on the platform 10. The third wire module includes a third servo motor 30 and a second mounting assembly 33, and the second mounting assembly 33 is driven by the third servo motor 30 to move along the guide rail direction of the third linear module 31. The drive motor is arranged on the second mounting assembly 33, and the drive motor 29 is driven by the second mounting assembly 33 to move along the track direction of the linear module. The second mounting assembly 33 is a bracket, which is connected to the guide rail of the third linear module 31 and is used to support the drive motor 29 and the cutting blade 36. The cutting blade 36 is connected to one end of the coupling 38 through the main shaft 35, and the other end of the coupling 38 is connected to the driving motor 29, and the cutting blade 36 is driven to rotate by the motor. A shield 34 is set on the outside of the cutting blade 36 to play a safety protection role. A high-precision servo motor and a linear guide are used to drive the cutting motor and the cutting blade 36 to move. The movement amount is accurate and the step value is configurable, which can accurately control the cutting depth, and then quickly and accurately calibrate the resistance value. The third drag chain connecting plate 39 is fixed on one side of the mounting block 37.

[0077] In other preferred embodiments, the online adjustment workbench of the shunt may also include an industrial computer 5: the industrial computer 5 is connected to the first linear module 11, and controls the first linear module 11 to drive the shunt to move, so that the shunt moves to a specified position; the industrial computer 5 is connected to the cutting device 7, and controls the cutting device 7 to perform cutting operations; the industrial computer 5 is connected to the measuring component, and can receive and save the feedback data of the measuring component and perform data processing to obtain the real-time resistance value of the shunt, and compare the real-time resistance value with the target value. When the real-time resistance value reaches the target value, the cutting device 7 is controlled to stop the cutting operation. The industrial computer 5 can also be connected to a picking device, a dust collecting device, a clamp 8, etc. to realize automatic operation. Existing control software is configured on the industrial computer 5. The existing control software may include the following functions: supporting users to configure various parameters of the equipment and each subsystem; supporting users to set the target resistance value of calibration according to the shunt model; during the calibration process, the resistance value of the shunt is calculated in real time according to the current and voltage values ​​measured by the measuring component; when the resistance value reaches the target value, the cutting action of the cutting device 7 during the calibration process is automatically stopped; supporting data analysis and storage as well as automatic generation of reports; automatically picking up unqualified products through the picking device, placing them in the unqualified product box in turn, and recording them on the software interface, and automatically calculating Cpk / Ppk through the control software.

[0078] In other preferred embodiments, refer to Figure 1 , Figure 2 As shown, the shunt online adjustment workbench is equipped with an electric control cabinet 1, a touch screen 2, a display 3, a current source 9, etc. These components all adopt the existing technology.

[0079] The working process of the online adjustment workbench for the shunt in the above embodiment is as follows: the operator can install the product (shunt) on the fixture 8 and automatically and quickly press the product; the first linear module 11 drives the fixture 8 to slide the product into the cutting device 7; at the same time, the measuring component automatically measures the shunt current and the voltage drop at both ends; the cutting blade 36 of the cutting device 7 cuts the shunt according to the measured feedback value until the target value; the shunt is detected simultaneously during the cutting process; after adjustment, the fixture 8 automatically slides the product out to the other end of the guide rail of the first linear module 11; the operator then takes out the product; if there are defective products, the air claw 27 inside the platform 10 automatically takes out the defective products and puts them into the defective box.

[0080] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A diverter online adjustment workbench, characterized in that: include: a platform for support; A first linear module disposed on the platform; A cutting device is arranged at one end of the first linear module, and the cutting device is used to cut the shunt and adjust the resistance value of the shunt; A clamp is arranged on the guide rail of the first linear module, the clamp is used to clamp the diverter, the clamp can move along the guide rail of the first linear module, drive the diverter to move along the guide rail of the first linear module to the cutting device, so that the cutting device can cut the diverter; A measuring component is connected to the shunt and is used to measure the current and the voltage drop across the shunt before and during cutting.

2. The diverter online adjustment workbench according to claim 1, characterized in that: It also includes a dust suction device for collecting dust generated during the cutting process, and the air blowing nozzle of the dust suction device is fixed on the clamp.

3. The diverter online adjustment workbench according to claim 1, characterized in that: It also includes a picking device arranged on the platform, which can pick up the unqualified diverters after cutting from the clamp and collect them.

4. The diverter online adjustment workbench according to claim 3, characterized in that: The pickup device comprises: A gantry, wherein a servo motor, a drag chain slot and a second linear module are provided on the gantry, wherein the drag chain slot and the guide rails of the second linear module are arranged along the length direction of the horizontal side of the gantry, the drag chain slot is located at the upper part of the horizontal side of the gantry, and the linear module is located at the side of the horizontal side of the gantry; A slide cylinder, the slide cylinder is arranged on the second linear module, the slide cylinder can move along the guide rail direction of the second linear module, an air claw is arranged at the bottom of the slide cylinder, the air claw is used to pick up the diverter, and the slide cylinder can drive the air claw to extend and retract in the vertical direction; A material box for accommodating unqualified diverters is arranged below the platform and below the gantry.

5. The diverter online adjustment workbench according to claim 4, characterized in that: The air gripper comprises: An adjusting rod, the adjusting rod is horizontally arranged at the bottom of the air gripper; a scale is provided in the length direction of the adjusting rod; The claw comprises a first component and a second component, the first component and the second component are connected to the adjustment rod, and the distance between the first component and the second component is adjustable.

6. The diverter online adjustment workbench according to claim 1, characterized in that: The fixture comprises: A base plate for supporting and fixing; A first adjustment fixing plate and a second adjustment fixing plate are arranged on the bottom plate for supporting and clamping the diverter, the first adjustment fixing plate and the second adjustment fixing plate are L-shaped parts, the first adjustment fixing plate and the second adjustment fixing plate are symmetrically arranged along the vertical axis, and a hollow space is formed between the first adjustment fixing plate and the second adjustment fixing plate; A pressing cylinder is arranged on the bottom plate, and the pressing cylinder is arranged on one side of the hollow space, and the pressing cylinder is supported above the bottom plate by a supporting member; the supporting member is provided with an air nozzle air inlet joint; A first test probe adjustment component and / or a second test probe adjustment component, wherein the first test probe adjustment component is arranged on one side of the clamping cylinder and is located on a side close to the hollow space, and the clamping cylinder drives the test probe of the first test probe adjustment component to move in a horizontal direction; the first test probe adjustment component is connected to the measuring component and is used to collect the current and voltage of the shunt; the second test probe adjustment component is arranged in the hollow space, and the second test probe adjustment component drives the test probe to move in a height direction of the hollow space; the second test probe adjustment component is connected to the measuring component and is used to collect the current and voltage of the shunt; The first test copper block and the second test copper block are used for transmitting current, and the first test copper block and the second test copper block are respectively arranged on the top of the first adjustment fixing plate and the second adjustment fixing plate; the shunt is arranged on the first test copper block and the second test copper block; the first test copper block and the second test copper block are respectively provided with a first copper nose and a second copper nose, and the first copper nose is used to connect the positive pole of the current source, and the second copper nose is used to connect the negative pole of the current source.

7. The diverter online adjustment workbench according to claim 6, characterized in that: The fixture also includes: A first pressing block, wherein the first pressing block is arranged on the upper surface of the first test copper block; a first spinning cylinder, wherein the first spinning cylinder is connected to the first pressing block, and the first pressing block clamps the diverter through the first spinning cylinder; A second pressing block is arranged on the upper surface of the second test copper block. The second spinning cylinder is connected to the second pressing block, and the second pressing block is clamped by the second spinning cylinder.

8. The diverter online adjustment workbench according to claim 6, characterized in that: The bottom plate is provided with a plurality of evenly distributed positioning holes for fixing the components supported on the bottom plate, and the fixing positions of the components on the bottom plate can be adjusted through the positioning holes.

9. The diverter online adjustment workbench according to claim 1, characterized in that: The cutting device comprises: A third linear module, wherein the guide rail of the third linear module is vertically arranged on the platform, and the third linear module comprises a servo motor and a mounting assembly, and the mounting assembly is driven by the servo motor to move along the guide rail direction of the third linear module; A driving motor disposed on the mounting assembly, driven by the mounting assembly to move along the track direction of the linear module; A cutting blade is connected to the driving motor through a coupling, and the driving motor drives the cutting blade to rotate.

10. The diverter online adjustment workbench according to any one of claims 1 to 9, characterized in that: It also includes industrial computers, The industrial computer is connected to the first linear module, and controls the first linear module to drive the diverter to move, so that the diverter moves to a specified position; The industrial computer is connected to the cutting device to control the cutting device to start or stop cutting operation.

Images