CN115207742B - Intelligent hydraulic clamp and wire harness cable manufacturing management system - Google Patents
Intelligent hydraulic clamp and wire harness cable manufacturing management system Download PDFInfo
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- CN115207742B CN115207742B CN202210887138.2A CN202210887138A CN115207742B CN 115207742 B CN115207742 B CN 115207742B CN 202210887138 A CN202210887138 A CN 202210887138A CN 115207742 B CN115207742 B CN 115207742B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
- H01R43/055—Crimping apparatus or processes with contact member feeding mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides an intelligent hydraulic clamp and a management system for manufacturing a wire harness cable, which comprises the following components: the intelligent management end, the intelligent hydraulic clamp and the intelligent identification device; the intelligent management end receives real-time dynamic parameters of the hydraulic clamp and sends material parameters and process parameters of the wire harness cable to the intelligent hydraulic clamp and the intelligent identification device; the intelligent identification device is connected with the intelligent management end and is used for marking and identifying the material object based on the material parameters and sending the material object information to the intelligent management end before the wire harness cable is manufactured; the intelligent management end is also used for comparing the material parameters with the material information of the real object to generate a material passing signal or generate material error information; the intelligent hydraulic pliers are connected with the intelligent management end and are used for generating an execution instruction for manufacturing the wire harness cable based on the material parameters and the process parameters after receiving the material passing signals so as to manufacture the wire harness cable. The invention manages and records the whole-course data of the wire harness manufacturing process, thereby ensuring that the hydraulic pliers accurately, efficiently and high-quality manufacture wire harness cables.
Description
Technical Field
The invention relates to the field of intelligent equipment control, in particular to an intelligent hydraulic clamp and management system for manufacturing wire harness cables.
Background
In the power transmission and distribution lines in the fields of electric power, energy sources, traffic and industry, large-size wires and cables are often used as power and signal transmission carriers, the large-size wires and cables are connected by connecting terminals at connecting positions, and in order to ensure the connection reliability, the connecting terminals and the wires are connected by using hydraulic crimping pliers to reliably connect the wires and the terminals, so that the circuit can reliably and stably operate. The product of the integration of conductors and cables with connectors is commonly referred to as a harness. The materials that must be used to make the harness are generally shown in fig. 4.
Influence of wire harness crimping substances on the circuit:
1) The flash appears on the connecting terminal after the wire crimping, the terminal surface is uneven, has comparatively obvious edges and corners to appear, can appear the point discharge and cause the circuit to fail to normally work in the power supply line, causes incident such as conflagration when serious, terminal surface flash accessible visual inspection after the crimping, and the main reason that the flash appears is the wrong wire that uses, terminal, moulding-die or crimping instrument and causes.
2) The wire and the terminal must be reliable in crimping, if the crimping pressure is not in place, the contact resistance between the terminal and the wire is great, and the weak circuit virtual connection leads to electrical apparatus work abnormal, and serious person can cause the connection position pine to take off and lead to the accident, especially contact position resistance increase generates heat, leads to accidents such as power supply line damage such as conflagration or electrical equipment damage.
Whether the crimping pressure is qualified or not mainly depends on whether the hydraulic clamp pressure is selected properly or not; whether the pressure reaches the set pressure or not in the crimping process, the pressure does not reach the design requirement, the crimping between the lead and the terminal is not reliable, the lead is disqualified in crimping, and accidents are very easy to occur.
Traditional hydraulic pliers and crimping mode limitation:
1) At present, a hydraulic clamp is conventionally used, an operator selects a wire, a terminal used in crimping, a selection tool and a crimping die according to the understanding of the requirement of the wire harness crimping quality during crimping, and installs and then performs crimping. The quality of the product is completely determined by the personal responsibility and skill of an operator, and standard file guidance such as lead wires, terminals, crimping mold specifications, crimping pressure, tool model parameters and the like is avoided, and especially when the on-site work is performed, the situation that materials are used in error easily occurs when the types and specifications of the materials are more.
2) In the wire crimping process, materials and tools are selected and taken by operators, the actual crimping pressure, the actual condition of the tools, whether the crimping process is complete, whether the real-time crimping pressure reaches a required value, whether the crimping tools and dies are in a service cycle and the like can be judged by the operators, and the conditions of no record and no recordation can be realized.
Therefore, the traditional crimping mode human factors can influence the production quality of the product wire harness to a certain extent, the whole crimping process is not recorded, the whole crimping process cannot be traced, and the production process management has a defect.
Disclosure of Invention
The invention aims to solve the problems, and is realized by the following technology:
in one aspect, the present invention provides an intelligent hydraulic clamp comprising:
a hydraulic clamp control circuit;
the hydraulic clamp communication circuit is connected with the hydraulic clamp control circuit and is used for receiving a communication instruction transmitted by the hydraulic clamp control circuit, communicating with the intelligent management end and transmitting the type of the hydraulic clamp to the intelligent management end;
the hydraulic clamp control circuit is used for sending an execution instruction of wire harness and cable manufacture based on the material parameter and the process parameter when the material parameter, the process parameter and the material passing signal corresponding to the hydraulic clamp type are acquired from the intelligent management end;
And the hydraulic clamp executing circuit is connected with the hydraulic clamp control circuit and is used for receiving the executing instruction of the wire harness cable manufacture so as to manufacture the wire harness cable.
In some embodiments, the hydraulic clamp control circuit is further configured to: before the wire harness cable is manufactured, receiving a material passing signal sent by the intelligent management end, and generating an execution instruction for manufacturing the wire harness cable;
the material passing signals comprise material passing signals generated after the intelligent management terminal identifies the entity materials based on the intelligent identification device.
In some embodiments, the hydraulic clamp actuation circuit includes: the hydraulic clamp comprises a clamp head, a crimping die, a hydraulic clamp driving mechanism and an electric motor;
the crimping die is arranged on the clamp head;
the hydraulic driving mechanism comprises a hydraulic cylinder, an oil tank and a hydraulic pump;
the electric motor is used for providing power for the hydraulic pump under the control of the hydraulic clamp control circuit;
the electric motor drives the hydraulic pump to rotate at a high speed, so that the hydraulic pump pushes the hydraulic cylinder to drive the crimping die to manufacture the wire harness cable.
In some embodiments, further comprising:
The start-stop circuit is connected with the hydraulic clamp control circuit and is used for receiving a start-stop instruction to start and stop the intelligent hydraulic clamp, and sending the start-stop instruction to the intelligent management end through the hydraulic clamp communication circuit so as to enable the intelligent management end to acquire real-time data and record states;
the pressure release button is connected with the release connecting rod, the release connecting rod is connected with the hydraulic cylinder, the button is installed outside the shell, the connecting rod is installed inside the hydraulic tong shell, and the pressure release button is used for releasing the pressure of the intelligent hydraulic tong by pressing the release button after the intelligent hydraulic tong completes the crimping, so that the crimping die is retracted and loosened, and the wire harness is taken out.
In some embodiments, further comprising:
the pressure sensor is connected with the hydraulic clamp control circuit and used for outputting pressure information of the intelligent hydraulic clamp to the hydraulic clamp control circuit in real time so as to be used by the intelligent management end.
In some embodiments, the hydraulic clamp control circuit is further configured to detect pressure information, battery voltage information, operating state information, tool information, and fault information of the intelligent hydraulic clamp, and send the pressure information, the battery voltage information, the operating state information, the tool information, and the fault information of the intelligent hydraulic clamp to the intelligent management terminal through the hydraulic clamp communication circuit.
A management system for harness cable fabrication, comprising: the intelligent hydraulic clamp, the intelligent management end and the intelligent identification device;
the intelligent management end is used for receiving the model of the hydraulic clamp and transmitting material parameters and process parameters corresponding to the cable bundle to the intelligent hydraulic clamp and the intelligent identification device;
the intelligent identification device is connected with the intelligent management end and is used for marking and identifying the material object based on the material parameters before the wire harness cable is manufactured and sending the material object information to the intelligent management end;
the intelligent management end is also used for comparing the material parameters with the material information of the real object to generate a material passing signal or generate material error information;
the intelligent hydraulic pliers are connected with the intelligent management end and are used for generating an execution instruction for manufacturing the wire harness cable based on the material parameters and the technological parameters after receiving the material passing signals so as to manufacture the wire harness cable.
In some embodiments of the present invention, in some embodiments,
the intelligent management end sends a material passing signal to the intelligent hydraulic clamp before the wire harness cable is manufactured;
the intelligent hydraulic pliers receive a material passing signal sent by the intelligent management end and generate an execution instruction for manufacturing the wire harness cable;
The material passing signals comprise material passing signals generated after the intelligent management terminal identifies the entity materials based on the intelligent identification device.
In some embodiments of the present invention, in some embodiments,
the intelligent hydraulic pliers send an on/off command for controlling the on/off of the intelligent hydraulic pliers to the intelligent management end;
the intelligent management end is based on the start/stop instruction to acquire real-time data and record state;
the real-time data comprise pressure information, battery voltage information, working state information, tool information and fault information of the intelligent hydraulic pliers.
In some embodiments of the present invention, in some embodiments,
the intelligent management end is further used for calculating a preset working pressure range of the intelligent hydraulic clamp before the intelligent hydraulic clamp is started;
the intelligent hydraulic pliers are also used for collecting pressure information in real time after being started and transmitting the pressure information to the intelligent management end;
the intelligent management end is further used for sending and recording an alarm signal based on the pressure information and the preset working pressure range.
The management system for manufacturing the intelligent hydraulic pliers and the wire harness cable has the following advantages:
according to the intelligent hydraulic pliers, communication connection is established with the intelligent management end in the process of manufacturing the wire harness cable, real-time data affecting performance quality of the wire harness in the process of manufacturing the wire harness are managed in real time, and the wire harness cable can be manufactured accurately, efficiently and high-quality.
And secondly, in the invention, the material information actually used in the production of the wire harness is identified and compared with the required data through the code scanning identification device, so that the material error use of operators is reduced.
And thirdly, the intelligent management end can monitor and manage the dynamic information of the tool in the actual operation process, record and store the data of the whole manufacturing process, so that the inquiry and the tracing are convenient, the manual misoperation is reduced to the greatest extent, and the manufacturing quality and the working efficiency of the product are improved.
Drawings
The above features, technical features, advantages and implementation manners of a management system for manufacturing intelligent hydraulic pliers, intelligent hydraulic pliers and wire harness cables will be further described in a clear and understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic view of one embodiment of a smart hydraulic clamp of the present invention;
FIG. 2 is a block diagram of hydraulic tongs according to the present invention;
FIG. 3 is a schematic diagram of hydraulic clamp components and control principles in the present invention;
FIG. 4 is a diagram of the materials and tools required for harness making;
FIG. 5 is a diagram of an intelligent management system for cable and harness making in the present invention;
FIG. 6 is a diagram of a material identification control in the present invention;
FIG. 7 is a graph of real-time pressure versus sensor signal for the present invention;
FIG. 8 is a pressure discrimination flow chart in the present invention;
FIG. 9 is a diagram showing a press-fit record and an alarm display in the present invention;
FIG. 10 is a schematic diagram of the main interface after initiation of crimping in accordance with the present invention;
FIG. 11 is a diagram showing the recording of all operational information during the harness making process in accordance with the present invention;
fig. 12 is a diagram showing history data in the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, and circuits are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
It should be noted that the key factors of the qualified wire harness production include the following aspects:
1, using the specification of a wire required by design;
2, using a connecting terminal which is completely matched with the specification of the wire;
3, the crimping die must be properly selected;
4, the pressure of the used crimping pliers is necessarily correct;
5, the compression joint times meet the design requirement;
6, the real-time pressure of the first compression joint process reaches the required value;
and 7, the crimping die and the crimping pliers are required to be in a service cycle.
In one embodiment, the present invention provides an intelligent hydraulic clamp, as shown in FIG. 1, comprising:
hydraulic clamp control circuit 100.
The hydraulic clamp communication circuit 200 is connected with the hydraulic clamp control circuit, and is used for receiving a communication instruction transmitted by the hydraulic clamp control circuit, communicating with the intelligent management end, and transmitting the hydraulic clamp type, the wire crimping pressure, the motor voltage, the current and the crimping times during crimping to the intelligent management end.
The hydraulic clamp type, the wire crimping pressure, the motor voltage, the current and the crimping times during crimping are real-time dynamic parameters during the working of the intelligent hydraulic clamp.
The hydraulic clamp signal monitoring circuit 300 is connected with the hydraulic clamp control circuit and is used for collecting and storing crimping actual pressure data, voltage and current and crimping times which are completed when the intelligent hydraulic clamp works, and reading and generating a record report by an intelligent management end;
the hydraulic clamp monitoring circuit is composed of a hydraulic pressure sensor, a voltage and current sensor, a start/stop counter and the like.
The hydraulic clamp control circuit 100 is configured to, when acquiring material parameters, process parameters and material passing signals corresponding to wire harness production from the intelligent management terminal, send out a hydraulic clamp start/stop instruction for wire harness cable production based on the material parameters and the process parameters, and collect and store working information such as real-time pressure, voltage, times, state and the like after production starts, for providing the working information for the intelligent management terminal to record and manage, and transmitting real-time tool information to a hydraulic display screen.
For example, when the material parameter, the process parameter and the material passing signal corresponding to the hydraulic clamp model are acquired from the intelligent management end, the hydraulic clamp control circuit 100 issues an execution instruction of manufacturing the harness cable based on the material parameter and the process parameter.
Hydraulic clamp actuation circuit 400 includes: the motor and the start/stop switch are connected with the hydraulic clamp control circuit and used for receiving an execution instruction of wire harness cable manufacture so as to manufacture the wire harness cable.
The hydraulic tong display screen 500 is installed in the middle part of the front of the hydraulic tong, adopts key circulation display, is connected to the hydraulic tong control circuit, and is used for displaying real-time crimping pressure change when the motor works and displaying tool real-time information after the crimping is stopped, wherein the tool real-time information comprises the current crimping maximum pressure, working state, the residual crimping times of ten thousand times of crimping and battery power information.
Specifically, the hydraulic clamp display screen adopts a 1.3 inch OLED128 x 64 lattice screen.
Specifically, the intelligent hydraulic tong in this embodiment is an intelligent rechargeable hydraulic tong, including: the battery unit is arranged in the hydraulic clamp; an electric motor installed inside the clamp body; a hydraulic drive and release device; the hydraulic clamp head is used for installing the crimping die; the hydraulic clamp comprises a real-time pressure monitoring system, a battery power monitoring device, a hydraulic clamp state display screen, a network and Bluetooth module for communicating with an APP management system (intelligent management end) and a control circuit (hydraulic clamp communication circuit).
Wherein, whether the crimping pincers model uses correctly directly influences pencil crimping quality.
According to the intelligent hydraulic clamp, the intelligent hydraulic clamp is communicated with the tablet personal computer provided with the developed APP software, and materials required in the process of manufacturing a field setting wire harness can be utilized by the tablet personal computer, such as: technical parameters such as wire and cable specification, connecting terminal specification, crimping pliers model, crimping die specification model, pressure required by crimping and the like are used for guiding operators to manufacture wire harnesses by using correct materials.
And meanwhile, the tablet personal computer which is communicated with the hydraulic pliers acquires the real-time working state of the crimping tool in real time, and judges whether the wire harness and the cable are qualified or not.
Meanwhile, the working state of the crimping tool is monitored and recorded in real time, so that the post-inquiring and the additional description are facilitated.
In one embodiment, the hydraulic clamp control circuit is further configured to: before the wire harness cable is manufactured, receiving a material passing signal sent by the intelligent management end, and generating an execution instruction for manufacturing the wire harness cable.
The material passing signals comprise material passing signals generated after the intelligent management terminal identifies the entity materials based on the intelligent identification device.
Specifically, establish communication connection through the terminal identification device of installation in-service use material and the intelligent management end of installing APP, sweep the sign indicating number discernment to operator in-service use's material before the crimping, the intelligent management end of installing APP is automatic compares with the material that the product set for, controls intelligent hydraulic tong and begins the operation after the comparison is correct to give the warning suggestion when the deviation appears.
In the embodiment, the human error is reduced to the greatest extent; the qualification rate and the working efficiency of wire harness manufacturing are improved, and the material waste is reduced.
In one embodiment, as shown in fig. 2 to 5, the hydraulic clamp execution circuit includes: the clamp head, the crimping die, the hydraulic clamp driving mechanism and the electric motor.
The crimping die is mounted on the binding clip.
The hydraulic driving mechanism comprises a hydraulic cylinder, an oil tank and a hydraulic pump.
The electric motor is used for providing power for the hydraulic pump under the control of the hydraulic clamp control circuit.
The electric motor drives the hydraulic pump to rotate at a high speed, so that the hydraulic pump pushes the hydraulic cylinder to drive the crimping die to manufacture the wire harness cable.
In one embodiment, further comprising:
and the hydraulic clamp display circuit is connected with the hydraulic clamp control circuit and is used for displaying the working state information and the pressure information of the intelligent hydraulic clamp.
Specifically, materials generally necessary for making the wire harness are shown in fig. 4. The hydraulic pliers are main tools for manufacturing the wire harness, are also important component parts of the intelligent management system, and the rechargeable intelligent hydraulic pliers and the control schematic diagram are shown in fig. 2 and 3, and specifically comprise:
1) Crimping die: is arranged on the clamp head. The hydraulic pliers are started, the piston pushes the die to move forwards, the wire and the terminal are tightly combined to finish wire harness crimping, and different crimping dies are needed to be used according to different wire harnesses, so that the wire harness crimping die can be replaced at any time.
2) And a hydraulic driving mechanism: the hydraulic press die is composed of a hydraulic cylinder, an oil tank and a hydraulic pump, wherein high-pressure hydraulic oil generated by high-speed rotation of the hydraulic pump drives the hydraulic cylinder to drive the press die to move forwards.
3) An electric motor: the hydraulic pump is powered to rotate at a high speed.
4) And (3) a display screen: and the display device is connected with the control circuit board and displays real-time working information and pressure information of the tool.
In one embodiment, further comprising:
the start/stop switch is connected with the hydraulic clamp control circuit and is used for receiving a start/stop instruction to start/stop the intelligent hydraulic clamp, and the start/stop instruction is sent to the intelligent management end through the hydraulic clamp communication circuit so as to be used for real-time data acquisition and state recording of the intelligent management end.
The start/stop switch comprises a start/stop circuit, and is controlled by the start/stop circuit.
The hydraulic clamp execution circuit further comprises: the pressure release button is connected with the release connecting rod, the release connecting rod is connected with the hydraulic cylinder, the button is installed outside the shell, the connecting rod is installed inside the hydraulic tong shell, and the pressure release button is used for releasing the pressure of the intelligent hydraulic tong by pressing the release button after the intelligent hydraulic tong completes the crimping, so that the crimping die is retracted and loosened, and the wire harness is taken out.
Specifically, materials generally necessary for making the wire harness are shown in fig. 4. The hydraulic pliers are main tools for manufacturing the wire harness, are important component parts of the intelligent management system, and the rechargeable intelligent hydraulic pliers and the control schematic diagram are shown in fig. 2 and 3, and specifically further comprise:
5) Start-stop button: is connected with the control circuit board to start/stop the motor. Pressing the starting button, starting the hydraulic pliers to press, loosening the starting button, stopping the hydraulic pliers, and maintaining the current pressure by the hydraulic cylinder. Meanwhile, the rising edge of the starting signal and the falling edge of the stopping signal are sent to intelligent APP management software through the control board and used for starting and stopping real-time data acquisition and state recording of the hydraulic pliers.
6) Pressure release button: after the crimping is finished, the button is purely manually controlled, the pressure can be released by operating the button at any position, and meanwhile, the crimping die is retracted and released, so that the wire harness can be taken down and the crimping die can be replaced.
In one embodiment, further comprising:
the pressure sensor is connected with the hydraulic clamp control circuit and used for outputting pressure information of the intelligent hydraulic clamp to the hydraulic clamp control circuit in real time so as to be read, calculated and recorded by the intelligent management end.
Specifically, materials generally necessary for making the wire harness are shown in fig. 4. The hydraulic pliers are main tools for manufacturing the wire harness, are important component parts of the intelligent management system, and the rechargeable intelligent hydraulic pliers and the control schematic diagram are shown in fig. 2 and 3, and specifically further comprise:
7) A pressure sensor: the pressure sensor is arranged at the front end of the pressure output cylinder, converts pressure signals into digital quantity signals, stores the digital quantity signals in the memory, and the APP reads real-time pressure data by establishing communication with the CPU for operation, processing, recording and display.
Wherein, control circuit board: establishing communication with an APP through a network and a Bluetooth module; controlling the hydraulic pliers to start/stop; detecting information such as real-time pressure of the hydraulic clamp, battery voltage and the like; the management display module writes tool state information into the display screen; and storing and preserving programs necessary for tool operation, control, display and communication, storing tool information, real-time state information, fault information and the like, and reading the information through a computer APP.
In one embodiment, the hydraulic clamp control circuit is further configured to detect pressure information, battery voltage information, operating state information, tool information, and fault information of the intelligent hydraulic clamp, and send the pressure information, the battery voltage information, the operating state information, the tool information, and the fault information of the intelligent hydraulic clamp to the intelligent management terminal through the hydraulic clamp communication circuit.
In one embodiment, the present invention provides a management system for harness cable manufacture, as shown in fig. 5, comprising: the intelligent management end, the intelligent hydraulic pliers and the intelligent identification device.
The intelligent management end is used for receiving the model number, the crimping pressure, the motor voltage, the current and the battery electric quantity of the hydraulic clamp and transmitting the material parameters and the technological parameters corresponding to the cable bundles and the cables to the intelligent hydraulic clamp and the intelligent identification device.
Specifically, the intelligent management end can comprise intelligent APP management software, a tablet personal computer, a mobile phone and other intelligent equipment which can be operated and are provided with wireless communication interfaces, and the APP software is installed.
Wherein, intelligent APP management software and installation APP management software possess wireless communication interface's panel computer: the APP management software is intelligent APP software for managing, monitoring and recording real-time working information of the hydraulic pliers based on wire harness production developed by the Android system. Comprising the following steps: a network module and a Bluetooth module for communicating with the hydraulic clamp.
Specifically, intelligent APP management software:
APP management software developed based on Android system. APP software installs in computer or smart mobile phone APP management software is as intelligent management system's most important part, accomplishes pencil preparation overall process management, and wherein includes:
1, operation authority: the harness manufacturing must be implemented by professionals, the APP software is provided with account management, an APP login account is opened, the software can enter an APP main interface for process parameter setting and harness crimping by comparing account information and passwords. After successful login, the connection tool is selected, the intelligent management system provides two communication modes of network connection and Bluetooth connection, one of the two communication modes is used, and the Bluetooth connection is used as remedial communication when network communication is blocked. After the APP is connected with the hydraulic pliers, the model of the hydraulic pliers is read and stored in APP data.
2, setting materials and process data: setting material data for wire harness manufacturing, including: the wire size, the connecting terminal model, the crimping die model, the hydraulic clamp crimping pressure and the crimping clamp model during wire harness crimping are the first step of manufacturing qualified products, and correct data must be set to manufacture the qualified products. In order to facilitate the additional description, the product responsible person must be set, and remark information must be added to the product name. The APP setting page comprises a hydraulic clamp ID, a pressing mold model, a wire number size, a copper head model, pressure, a point position responsible person, a pressure channel number, remarks and the like, and further comprises reset and determination keys.
The intelligent identification device is connected with the intelligent management end and is used for marking and identifying the material based on the material parameters before the wire harness cable is manufactured and sending the material information to the intelligent management end.
Specifically, the intelligent recognition device is a terminal material recognition device and comprises; the intelligent identification code scanning device is provided with a network and a Bluetooth communication module which are in communication with the intelligent management APP.
Intelligent material identification device: the intelligent device with the network and Bluetooth communication modules for identifying the material terminal scanning code.
In this embodiment, the intelligent management terminal is mainly configured in the invention, and the intelligent management terminal receives main information from the intelligent pliers not only in type, but also in dynamic working information when the hydraulic pliers are in crimping, so as to manage and record the crimping process. After that, the records are analyzed to obtain product quality information, and the data records are further extracted. For example: and screening and counting the electronic forms to generate a production report of the product.
In this embodiment, the purpose of adding the intelligent device for identifying materials is to add the process of confirming the actual material information before the start of the manufacture, thereby avoiding the waste caused by the material error used by operators, reducing the human error, improving the product qualification rate, reducing the material waste and saving the cost.
The material terminal identification device is an independent device and is composed of an identification device with network and Bluetooth communication functions. The code scanning gun or the visual angle recognition device can be selected for implementation, and in the process of manufacturing the wire harness, a material is formed by a specific wire harness to be manufactured firstly, and the method comprises the following steps: the model and specification codes of wires or cables, terminals, crimping dies and tools are identified by scanning codes of materials to be used before manufacturing is started and sent to an intelligent management APP system, after the APP receives the information, the APP is compared with data set by a specific wire harness, the APP gives out correct prompts in accordance with the comparison, and when errors occur, warning information is given to remind an operator of replacing the correct materials.
The intelligent material identification device is used as an independent module, and whether the intelligent material identification device is used or not can be determined according to the specific product conditions on site. For individual point location single material fabrication is negligible. When the requirements are high or high-end wire bundles are manufactured, the scanning code identification is used, so that the product precision is greatly improved.
The intelligent management end is further used for comparing the material parameters with the material information of the real objects to generate material passing signals or material error information.
3, judging the correctness of the material information:
firstly, marking or coding the necessary material objects of the wire harness, scanning code equipment or visually identifying material information or coding, reading the identified material information by the APP, comparing the identified material information with set data, and correctly giving out a verification prompt for the material. And (5) giving out error material alarm information when the comparison result is abnormal. The decision process is shown in fig. 6.
3.1 firstly, marking or coding the material of the wire harness essential material.
And 3.2, the code scanning equipment or the visual identification equipment identifies the material information or the code and provides the material information or the code for the APP to read.
And 3.3APP reads the material information and compares the material information with the set material model specification.
And 3.4, correctly giving a correct notice when the comparison is correct, and giving an alarm and the class of wrong materials when the comparison is incorrect.
APP is through material discernment contrast, has avoided the defective products that causes because of the people takes the material mistake completely, very big improvement the product percent of pass.
The intelligent hydraulic pliers are connected with the intelligent management end and are used for generating an execution instruction for manufacturing the wire harness cable based on the material parameters and the technological parameters after receiving the material passing signals so as to manufacture the wire harness cable.
According to the invention, APP software developed by a tablet personal computer can be used for preparing materials required in the process of setting wire harnesses on a manufacturing site, such as: technical parameters such as wire and cable specification, connection terminal specification, crimping pliers type, crimping die specification type, pressure required by crimping and the like are used for guiding operators to manufacture wire harnesses by using correct materials; meanwhile, communication is established with the hydraulic pliers, the real-time working state of the crimping tool is collected in real time, and whether the wire harness and the cable are qualified or not is judged.
Meanwhile, the working state of the crimping tool is monitored and recorded in real time, so that the post-inquiring and the additional description are facilitated; terminal identification device and APP of installation in-service use material establish communication connection, sweep the sign indicating number discernment to operator in-service use's material before the crimping, APP is automatic to compare with the material that the product set for, begin the operation after comparing correctly, give the warning suggestion when appearing the deviation. Human errors are reduced to the greatest extent; the qualification rate and the working efficiency of wire harness manufacturing are improved, and the material waste is reduced.
In one embodiment, the intelligent management terminal sends a material passing signal to the intelligent hydraulic tongs before the harness cable is manufactured; the intelligent hydraulic pliers receive a material passing signal sent by the intelligent management end and generate an execution instruction for manufacturing the wire harness cable; the material passing signals comprise material passing signals generated after the intelligent management terminal identifies the entity materials based on the intelligent identification device.
In one embodiment, the intelligent hydraulic clamp sends a start/stop command for controlling the start/stop of the intelligent hydraulic clamp to the intelligent management end; the intelligent management end is based on the start/stop instruction to acquire real-time data and record state; the real-time data comprise pressure information, battery voltage information, working state information, tool information and fault information of the intelligent hydraulic pliers.
In one embodiment, the intelligent management terminal is further configured to calculate a preset operating pressure range of the intelligent hydraulic clamp before the intelligent hydraulic clamp is started.
The intelligent hydraulic pliers are further used for collecting pressure information in real time after starting and transmitting the pressure information to the intelligent management end.
The intelligent management end is further used for sending and recording an alarm signal based on the pressure information and the preset working pressure range.
Specifically, the intelligent management end can monitor and judge the pressure of the intelligent hydraulic pliers in real time, and specifically, as shown in fig. 7 to 9: 4. monitoring compression joint pressure and judging compression joint quality:
in the cable and harness making process, the actual pressure of the crimping process is set to the set point, in addition to the correct wires, terminals, crimping dies and adapted crimping pliers. The pressure required for a particular harness make is set by the designer to a range of maximum and minimum pressures. The pressure is lower than the set value, which causes the virtual connection between the lead and the terminal and poor contact; the actual pressure is higher than the set value, cracks or burrs are generated on the surface of the terminal, and the cracks or burrs can seriously affect the circuit or cause serious accidents.
The pressure sensor is arranged on the front end pressure output oil cylinder, and always detects the real-time pressure output to the crimping die, namely the pressure of the final crimping wire harness of the die. The pressure sensor outputs the pressure signal to an analog-to-digital conversion module of the control board in an analog voltage signal, and the conversion circuit converts the acquired voltage signal into a real-time pressure signal according to a pressing graph.
Sensor output signal corresponds to real-time pressure: pressure f=kx;
Wherein, the Y-hydraulic clamp outputs pressure; k-pressure/voltage conversion coefficient; the X-sensor outputs a voltage.
The conversion coefficient k=15 according to the sensor output voltage and pressure corresponding values.
Before crimping is started, the APP establishes communication connection with the hydraulic clamp, and pressure F which needs to be met for wire harness manufacturing is set at an APP setting interface according to the maximum pressure range and the minimum pressure range (generally + -5%) given by a designer. The APP software automatically calculates a pressure range according to the set pressure, firstly reads a variable F=125 KN, calculates a minimum pressure Fmin=F-Fx 5% = 118.75KN, and calculates a maximum pressure Fmax=F+fx5% =131.25.APP software takes pressures 118.75-131.25 as a qualified crimping judgment range.
After the hydraulic pliers starting button is pressed down, the APP receives the rising edge of the starting signal to start collecting real-time pressure data of the pressure sensor, after the falling edge of the starting button is detected, the detected maximum pressure is compared with the calculated pressure range, the real-time pressure is within the range, the APP records that the crimping state is OK, the pressure is smaller than the minimum pressure threshold, and the alarming and recording state is as follows: the pressure is too low; greater than the maximum pressure threshold, alarm and record state as follows: the pressure is too high. And an operator and a manager can inquire whether the crimping is qualified or not in the alarm number column according to the pressure value and the crimping state information.
Meanwhile, the management system may also perform: 6, collecting, recording and inquiring information in crimping process
The main interface after the crimping is started is shown in fig. 10: the data can be automatically transmitted to the APP interface, the compression is completed once, and the current data can be displayed and stored on the interface.
The intelligent APP records all operation information in the whole process of beam production, and data is automatically stored. Comprising the following steps: 1) Logging in an account; 2) Harness setting data; 3) The materials are actually used; 4) Hydraulic clamp working pressure and other real-time information; 5) An operation responsible person; 6) Whether the crimping result is OK; 7) The time at which all states occur, etc., as shown in fig. 11.
The real-time dynamic data is not modifiable after the recording is completed for data realism and continuity. The recorded data realizes intelligent management on the whole wire harness manufacturing process, can inquire a producer, used materials, a crimping process and results of a product according to time, and can provide full record and full monitoring of the production process of the product through history record inquiry.
And 7, data export:
in the history data, the functions of "export current", "export all", "backup all" and the like may be clicked. And (5) inputting a file name to determine after clicking. In the derived point location data, real-time dynamic information of the crimping process can be checked, including: the crimping time, the wire size, the die model, the terminal model, the set pressure, the actual crimping pressure, an operator, the crimping result, alarm information and the like can completely reflect the real-time data of the whole crimping process according to the information, and are used for monitoring the manufacturing process of the product, analyzing the quality of the product and the like. As shown in fig. 12.
8, checking data and generating a report:
and in the file management folder, corresponding data are checked to find corresponding export files, corresponding records can be directly opened and checked under the condition of supporting EXCEL, and a production report is generated through searching and screening.
The intelligent hydraulic clamp consists of an intelligent APP, an intelligent hydraulic clamp and a terminal material identification device. The dynamic real-time monitoring of the whole process of the wire harness manufacturing whole factors is realized, wherein the dynamic real-time monitoring comprises (manager, operator, setting data, operation time, tool working data record-wire crimping die terminal model finished product name and application used by voltage and current actual pressure).
Semi-monitoring (without code scanning) can also be selected, and has the advantages that: high efficiency and is suitable for the production of conventional batch products.
Full monitoring (option, with scan code confirmation) may also be selected: and the intelligent identification is adopted, so that the material use errors caused by artificial factors are reduced, and the intelligent identification method is suitable for production of new products and unconventional small-batch products.
In the embodiment, a pressure sensor and a frequency counter are arranged in the hydraulic clamp, the maximum pressure of crimping is detected, and the frequency of the crimping clamp action is recorded by the counter.
In the embodiment, the management system can carry out product data report statistics, product manufacturing quality analysis and product bad reason tracing, and the intelligent management reduces management cost.
The invention also provides a management method for manufacturing the wire harness cable, which comprises the following steps:
and the intelligent management end receives the model of the hydraulic clamp and transmits the material parameters and the process parameters corresponding to the wire bundle cable to the intelligent hydraulic clamp and the intelligent identification device.
The intelligent identification device is connected with the intelligent management end, marks and identifies the material objects based on the material parameters before the wire harness cable is manufactured, and sends the material object information to the intelligent management end;
and the intelligent management end compares the material parameters with the material information of the real object to generate a material passing signal or generate material error information.
The intelligent hydraulic pliers are connected with the intelligent management end, and after receiving the material passing signal, an execution instruction for manufacturing the wire harness cable is generated based on the material parameter and the technological parameter so as to manufacture the wire harness cable.
According to the intelligent hydraulic pliers, communication connection is established with the intelligent management end in the process of manufacturing the wire harness cable, real-time data influencing the performance quality of the wire harness in the process of manufacturing the wire harness are managed in real time, and the wire harness cable can be manufactured accurately, efficiently and high-quality.
According to the invention, the material information actually used in the production of the wire harness is identified and compared with the required data through the code scanning identification device, so that the material error use of operators is reduced.
The intelligent management end can monitor and manage the dynamic information of the tool in the actual operation process, records and stores the data of the whole manufacturing process, is convenient for inquiring and tracing, reduces the manual misoperation to the greatest extent, and improves the manufacturing quality and the working efficiency of the product.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of each program module is exemplified, and in practical application, the above-described function allocation may be performed by different program modules according to needs, i.e. the internal structure of the device is divided into different program units or modules, so as to perform all or part of the above-described functions. The program modules in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one processing unit, where the integrated units may be implemented in a form of hardware or in a form of a software program unit. In addition, the specific names of the program modules are only for easy distinction, and are not used to limit the protection scope of the present application.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the parts of a certain embodiment that are not described or depicted in detail may be referred to in the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of a device are exemplary only, exemplary, and the partitioning of modules or units is merely a logical functional partitioning, and there may be additional partitioning in actual implementation, exemplary, and multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. An intelligent hydraulic clamp, characterized by comprising:
A hydraulic clamp control circuit;
the hydraulic clamp communication circuit is connected with the hydraulic clamp control circuit and is used for receiving a communication instruction transmitted by the hydraulic clamp control circuit, communicating with the intelligent management end and transmitting the hydraulic clamp type, the wire crimping pressure, the motor voltage, the current and the crimping times during crimping to the intelligent management end;
the hydraulic clamp signal monitoring circuit is connected with the hydraulic clamp control circuit and is used for collecting and storing crimping actual pressure data, voltage and current and crimping times when the intelligent hydraulic clamp works, reading and comparing the crimping actual pressure data, voltage and current with product design data by an intelligent management end, judging whether a product is qualified or not, and generating a record report;
the hydraulic clamp control circuit is used for sending out a hydraulic clamp starting/stopping instruction of wire harness cable manufacture based on the material parameter and the process parameter when material parameters, process parameters and material passing signals corresponding to wire harness manufacture are acquired from the intelligent management end, collecting and storing real-time pressure, voltage, times and state work information after the manufacture is started, and providing the real-time pressure, voltage, times and state work information for the intelligent management end to record and manage and transmitting tool real-time information to the hydraulic display screen;
The material passing signal comprises an intelligent identification device connected with the intelligent management end, before the wire harness cable is manufactured, the material passing signal is used for marking and identifying the material based on the material parameters, and sending the material information to the intelligent management end; the intelligent management end compares the material parameters with the material information of the real object, and generates a material passing signal when the material parameters are consistent with the material information of the real object, or generates a material error message and prevents the next operation when the material parameters are inconsistent with the material information of the real object;
after receiving the material passing signal, generating an execution instruction for manufacturing the wire harness cable based on the material parameter and the process parameter so as to manufacture the wire harness cable;
hydraulic clamp actuation circuit, comprising: the motor and the start/stop switch are connected with the hydraulic clamp control circuit and are used for receiving an execution instruction of manufacturing the wire harness cable so as to manufacture the wire harness cable;
the hydraulic clamp display screen is arranged in the middle of the front face of the hydraulic clamp, is circularly displayed by a key and is connected to the hydraulic clamp control circuit and is used for displaying real-time pressure change of pressure welding when the motor works and displaying real-time tool information after the pressure welding is stopped, and the real-time tool information comprises the maximum pressure of the pressure welding, the working state, the residual pressure welding times of ten thousand times of pressure welding and battery power information.
2. The intelligent hydraulic clamp according to claim 1, wherein the hydraulic clamp control circuit is further configured to: before the wire harness cable is manufactured, receiving a material passing signal sent by the intelligent management end, and generating an execution instruction for manufacturing the wire harness cable;
the material passing signals comprise material passing signals generated after the intelligent management terminal identifies the entity materials based on the intelligent identification device.
3. The intelligent hydraulic clamp according to claim 1, wherein the hydraulic clamp implementing circuit comprises: the hydraulic clamp comprises a clamp head, a crimping die, a hydraulic clamp driving mechanism and an electric motor;
the crimping die is arranged on the clamp head;
the hydraulic clamp driving mechanism comprises a hydraulic cylinder, an oil tank and a hydraulic pump;
the electric motor is used for providing power for the hydraulic pump under the control of the hydraulic clamp control circuit;
the electric motor drives the hydraulic pump to rotate at a high speed, so that the hydraulic pump pushes the hydraulic cylinder to drive the crimping die to manufacture the wire harness cable.
4. The intelligent hydraulic clamp according to claim 3, further comprising:
the start/stop switch is connected with the hydraulic clamp control circuit and is used for receiving a start/stop instruction to start/stop the intelligent hydraulic clamp and sending the start/stop instruction to the intelligent management end through the hydraulic clamp communication circuit so as to enable the intelligent management end to acquire real-time data and record states;
The hydraulic clamp execution circuit further comprises: the pressure release button is connected with the release connecting rod, the release connecting rod is connected with the hydraulic cylinder, the button is installed outside the shell, the connecting rod is installed inside the hydraulic tong shell, and the pressure release button is used for releasing the pressure of the intelligent hydraulic tong by pressing the release button after the intelligent hydraulic tong completes the crimping, so that the crimping die is retracted and loosened, and the wire harness is taken out.
5. The intelligent hydraulic clamp according to claim 1, further comprising:
the pressure sensor is connected with the hydraulic clamp control circuit and used for outputting pressure information of the intelligent hydraulic clamp to the hydraulic clamp control circuit in real time so as to be read, calculated and recorded by the intelligent management end.
6. The intelligent hydraulic clamp according to any one of claims 1 to 5, wherein the hydraulic clamp control circuit is further configured to detect pressure information, battery voltage information, operating state information, tool information, and fault information of the intelligent hydraulic clamp, and transmit the pressure information, battery voltage information, operating state information, tool information, and fault information of the intelligent hydraulic clamp to the intelligent management terminal through the hydraulic clamp communication circuit.
7. A management system for harness cable fabrication, comprising: the intelligent management terminal, the intelligent hydraulic clamp, and the intelligent recognition device according to any one of claims 1 to 6;
the intelligent management end is used for receiving the model number of the hydraulic clamp, the crimping pressure, the motor voltage, the current and the battery electric quantity, and transmitting material parameters and technological parameters corresponding to the cable bundles and the cable to the intelligent hydraulic clamp and the intelligent identification device;
the intelligent identification device is connected with the intelligent management end and is used for marking and identifying the material object based on the material parameters before the wire harness cable is manufactured and sending the material object information to the intelligent management end;
the intelligent management end is also used for comparing the material parameters with the material information of the real object, generating a material passing signal when the material parameters are consistent with the material information of the real object, or generating material error information and preventing the next operation when the material parameters are inconsistent with the material information of the real object;
the intelligent hydraulic pliers are connected with the intelligent management end and are used for generating an execution instruction for manufacturing the wire harness cable based on the material parameters and the technological parameters after receiving the material passing signals so as to manufacture the wire harness cable.
8. The harness cable manufacturing management system of claim 7, wherein,
the intelligent management end sends a material passing signal to the intelligent hydraulic clamp before the wire harness cable is manufactured;
the intelligent hydraulic pliers receive a material passing signal sent by the intelligent management end and generate an execution instruction for manufacturing the wire harness cable;
the material passing signals comprise material passing signals generated after the intelligent management terminal identifies the entity materials based on the intelligent identification device.
9. The harness cable manufacturing management system of claim 7, wherein,
the intelligent hydraulic pliers send an on/off command for controlling the on/off of the intelligent hydraulic pliers to the intelligent management end;
the intelligent management end is based on the start/stop instruction to acquire real-time data and record state;
the real-time data comprise real-time pressure information, motor working current information, battery voltage and electric quantity information, working state information, tool information and fault information of the intelligent hydraulic pliers.
10. The management system for harness cable manufacture according to any one of claims 7 to 9, wherein,
the intelligent management end is further used for calculating a preset working pressure range of the intelligent hydraulic clamp before the intelligent hydraulic clamp is started;
The intelligent hydraulic pliers are also used for collecting pressure information in real time after being started and transmitting the pressure information to the intelligent management end;
the intelligent management end is also used for judging whether the crimping process is complete or not and whether the product is qualified or not based on the pressure information and the preset working pressure range and comparing the pressure information with data of product design requirements, and sending and recording alarm signals at the same time;
finding the defective products in the use of follow-up finished wire harness, through the data of analysis APP record, include:
the material parameters, the time of defective products, the working state of the tool and an operator, so that the reasons of the defective products are analyzed and traced.
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| CN202210887138.2A CN115207742B (en) | 2022-07-26 | 2022-07-26 | Intelligent hydraulic clamp and wire harness cable manufacturing management system |
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| CN202210887138.2A CN115207742B (en) | 2022-07-26 | 2022-07-26 | Intelligent hydraulic clamp and wire harness cable manufacturing management system |
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| US10192178B2 (en) * | 2011-11-29 | 2019-01-29 | Trimble Inc. | Application information for power tools |
| WO2016198973A1 (en) * | 2015-06-09 | 2016-12-15 | Cembre S.P.A | Portable work equipment for traveling use |
| EP3857654A4 (en) * | 2018-09-28 | 2022-06-01 | Hubbell Incorporated | Power tool with crimp localization |
| CN213860079U (en) * | 2020-05-07 | 2021-08-03 | 宁夏隆基硅材料有限公司 | Automatic processing device for crystal bar |
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