CN111829761A - Method for producing crimp failure determination data for terminal crimp failure detection device and method for inspecting crimp failure determination data - Google Patents
Method for producing crimp failure determination data for terminal crimp failure detection device and method for inspecting crimp failure determination data Download PDFInfo
- Publication number
- CN111829761A CN111829761A CN201910248538.7A CN201910248538A CN111829761A CN 111829761 A CN111829761 A CN 111829761A CN 201910248538 A CN201910248538 A CN 201910248538A CN 111829761 A CN111829761 A CN 111829761A
- Authority
- CN
- China
- Prior art keywords
- data
- defective
- terminal
- defective product
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Provided is a method for producing crimp failure determination data, which can provide a terminal crimp failure detection device that can save input operations, verify operations, and reduce input errors. In a method for creating crimp failure determination data for determining whether or not a crimp process is acceptable, the method stores in advance machining data for an acceptable product and machining data for a defective product generation in a terminal crimping device (21), and includes: a defective product detection waveform data generation step of performing terminal crimping processing based on the defective product generation processing data, generating and storing detection waveform data indicating a change in the pressure value at that time; a non-defective product detection waveform data generation step of performing terminal crimping processing based on non-defective product machining data, generating and storing detection waveform data indicating a change in pressure value at that time; and a determination data generation step of calculating the reference waveform data and the allowable tolerance based on the relationship between the detected waveform data stored in the defective detection waveform data generation step and the detected waveform data stored in the non-defective detection waveform data generation step, and generating the data for non-defective/defective determination.
Description
Technical Field
The present invention relates to a method for generating crimp failure determination data and a method for inspecting crimp failure determination data of a terminal crimp failure detection device for monitoring a crimp state of a terminal and automatically detecting crimp failure when the terminal is crimped to a terminal end portion of a coated electric wire from which a coating portion is peeled by a terminal crimp device.
Background
Conventionally, a terminal crimping device is configured to crimp a terminal of a predetermined shape to a terminal end portion of a coated electric wire from which a coating portion of a predetermined length is peeled. In such a terminal crimping device, various crimping failures such as a so-called core wire lift-out failure in which a part of the core wire portion is crimped in a state of being protruded from the terminal and a so-called coating biting failure in which a part to be crimped to the core wire portion includes a part of the coating portion may occur at the time of the terminal crimping process, and when such a crimping failure occurs, it is necessary to detect and eliminate the failure.
Therefore, a terminal crimping failure detection device for detecting an abnormality at the time of terminal crimping processing and recognizing a crimped state has appeared (for example, see patent document 1).
That is, as shown in fig. 13, the terminal crimping device 1 includes an applicator 3 on the base plate 2, and the applicator 3 includes an anvil 6 and a crimper 7 for crimping the terminal 5 to the terminal end portion of the covered wire 4. The terminal 5 includes a core wire pressure-bonding section 5a pressure-bonded to the core wire section 4a of the covered electric wire 4 and a covered pressure-bonding section 5b pressure-bonded to the covered section 4 b.
A pressure sensor 10 (for example, a piezoelectric sensor) is provided on the lower side of the base plate 2, and a lead wire 11 is drawn from the pressure sensor 10.
In the crimping process of the terminal 5, the configuration is: the covered electric wire 4 and the terminal 5 from which the covering 4b of the terminal portion is peeled are arranged at predetermined positions between the anvil 6 and the crimper 7, and in this state, by lowering the crimper 7, the core wire crimping portion 5a and the covering crimping portion 5b of the terminal 5 are compressed by the crimper 7 and the anvil 6, the core wire crimping portion 5a is crimped to the core wire portion 4a of the covered electric wire 4, and the covering crimping portion 5b is crimped to the covering 4b of the covered electric wire 4, and the terminal 5 is connected and fixed to the terminal portion of the covered electric wire 4.
In addition, the following method is adopted: in the terminal crimping process by the crimper 7, the pressure sensor 10 receives a pressure via the anvil 6, the bottom plate 2, or the like, and outputs a signal corresponding to the pressure value. The terminal pressure failure detection device captures a temporal change in the output from the pressure sensor 10 as a waveform, performs digital processing, compares normal-time reference waveform data stored in a memory or the like in advance with detection waveform data output at the time of inspection, determines whether the product is a non-defective product or a defective product, and eliminates the non-defective product.
As a method for determining whether or not the pressure bonding state is acceptable based on such detected waveform data, there is a method of: as shown in fig. 14, a method of determining whether or not the pressure-bonded state is acceptable based on whether or not the detected waveform data is within the allowable tolerance range throughout the entire region of the waveform data, with the range of the allowable value S, which is obtained by vertically shifting a predetermined value with reference to the reference waveform data a in the normal pressure-bonded state, as an allowable tolerance; a method of dividing the detected waveform data into a plurality of regions (for example, T1, T2, T3, etc.) along the time axis, comparing the area of each region with the area of the corresponding region (T1, T2, T3, etc.) of the reference waveform data a, and determining whether or not the pressure bonding state is acceptable depending on whether or not the area is within the allowable tolerance range; and a method of comparing the peak value and the total area of the waveform data with those of the reference waveform data to determine whether or not the pressure-bonded state is acceptable based on whether or not the peak value and the total area of the waveform data are within the allowable tolerance range.
When checking whether the data for the pass/fail determination composed of the reference waveform data and the allowable tolerance is appropriate, the processing data on the terminal crimping device side is manually changed to intentionally cause a defective crimping such as a core wire breakage, a coating bite, a coating residue, a core wire protrusion, a deep pressure, a shallow pressure, and the like, and whether or not a defective crimping is determined is verified, and if it cannot be determined as a defective crimping, it is determined as a defective data for the pass/fail determination or a failure on the terminal crimping defect detecting device side.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2005-135820
Disclosure of Invention
As a method of setting the reference waveform data and the allowable tolerance as described above, there is a method of: first, in order to create reference waveform data in a normal pressure bonding state, terminal pressure bonding processing is actually performed, and the time change of the output from the pressure sensor at this time is analyzed and processed from the terminal pressure bonding processing in the normal pressure bonding state, thereby obtaining the reference waveform data. Then, an allowable tolerance with respect to the reference waveform data is manually input through the operation screen.
However, according to the method of manually inputting the allowable tolerance, there are the following problems: it is difficult to understand what value is set, and input is troublesome, and input errors due to wrong ideas or careless input errors may occur.
In addition, there are also the following problems: after setting the reference waveform data and the allowable tolerance, in order to investigate whether the data for the pass/fail determination is appropriate, it is necessary to manually change the processing data on the terminal crimping apparatus side, and it is troublesome to cause various kinds of defective crimping and verify the defective crimping.
As disclosed in patent document 1, there is also a method of: the allowable tolerance is automatically set based on the standard deviation calculated from the sampled data.
However, in this case, since the terminal pressure contact condition greatly varies depending on the shape, material, and the like of the terminal, it is difficult to specify the adjustment position when the allowable tolerance is adjusted, and it is difficult to understand which value is required to be adjusted, which takes time, and an input error may occur due to an erroneous idea. In this case, as in the above case, it is necessary to verify whether the set pass/fail determination data is valid.
Further, since the processing data is manually changed in accordance with various pressure failure, there is a possibility that verification is lost.
In view of the above problems, it is an object of the present invention to provide a method for creating pressure failure determination data of a terminal pressure failure detection device capable of saving input operations and verification operations and reducing input errors, and a method for inspecting pressure failure determination data of a terminal pressure failure detection device capable of saving verification operations and effectively preventing verification failures.
In order to solve the above-mentioned problems, a method of producing crimp failure determination data for a terminal crimp failure detection device is a method of producing crimp failure determination data for a terminal crimp failure detection device, which determines whether or not a crimp process is acceptable from pre-set data for pass/fail determination based on detection waveform data generated from a change in a pressure value occurring at a predetermined portion when the terminal crimp device performs the terminal crimp process, and stores in advance machining data for a non-defective product for a predetermined device operation for a normal terminal crimp and machining data for a defective product for a predetermined device operation for generating a crimp failure, the method including: a defective product detection waveform data generation step of operating the terminal crimping device based on the defective product generation processing data to perform terminal crimping processing, and generating and storing detection waveform data indicating a change in the pressure value at that time; a non-defective product detection waveform data generation step of operating the terminal crimping device based on the non-defective product machining data to perform terminal crimping processing, and generating and storing detection waveform data indicating a change in the pressure value at that time; and a determination data generation step of calculating reference waveform data and an allowable tolerance based on a relationship between the detected waveform data stored in the defective product detection waveform data generation step and the detected waveform data stored in the non-defective product detection waveform data generation step, and generating the non-defective product determination data by correcting a data element corresponding to a cause of the defective pressure in the non-defective product machining data based on a predetermined correction value by an arithmetic unit.
Further, the following method may be employed: the defective product producing machining data is stored for each cause of the defective pressure welding, and the defective product detection waveform data generating step stores the detection waveform data together with the cause of the defective pressure welding.
Further, the following method may be employed: the defective product generating machining data includes data at a plurality of stages from a severe pressure welding failure to a mild pressure welding failure.
A method for inspecting data for determining defective pressure welding for a terminal pressure welding failure detection device, the method being for determining whether or not a pressure welding process is acceptable from data for pass/fail determination set in advance based on detection waveform data generated from a change in a pressure value occurring at a predetermined portion when the terminal pressure welding device performs the terminal pressure welding process, and for storing in advance, in the terminal pressure welding device, machining data for a non-defective product for a predetermined device operation for normal terminal pressure welding and machining data for a defective product for a predetermined device operation for generating a pressure welding failure, the method comprising: a defective product determination and inspection step of operating the terminal crimping device based on the defective product generation processing data to perform terminal crimping processing, and inspecting whether or not a crimping failure is determined based on the detection waveform data generated at this time; and a non-defective product determination/inspection step of operating the terminal crimping device based on the non-defective product machining data to perform a terminal crimping process, inspecting whether or not to determine a non-defective product by crimping based on the detection waveform data generated at this time, correcting a data element corresponding to a cause of a defective crimping in the non-defective product machining data based on a predetermined correction value by an arithmetic unit to generate the defective product generation machining data, and reporting that there is an abnormality when the non-defective product determination/inspection step determines that the non-defective crimping is performed and when the non-defective product determination/inspection step determines that the non-defective crimping is performed.
As described above, according to the method for creating the pressure failure determination data of the terminal pressure failure detection device of the present invention, the terminal pressure device stores in advance the processing data for the non-defective product for the normal terminal pressure connection and the processing data for the defective product occurrence for the occurrence of the pressure failure, and includes: a defective product detection waveform data generation step of performing terminal crimping processing based on the defective product generation processing data, generating and storing detection waveform data indicating a change in the pressure value at that time; a non-defective product detection waveform data generation step of performing terminal crimping processing based on non-defective product machining data, generating and storing detection waveform data indicating a change in pressure value at that time; a determination data generation step of calculating reference waveform data and allowable tolerance based on a relationship between the detected waveform data stored in the defective product detected waveform data generation step and the detected waveform data stored in the non-defective product detected waveform data generation step, and generating data for non-defective/defective determination, wherein the terminal crimping device automatically performs a special crimping failure and a normal terminal crimping process, and the data for non-defective/defective determination is automatically generated based on the detected waveform data of the processing based on the crimping failure and the detected waveform data of the processing based on the non-defective product at that time, and therefore, the present invention has the following advantages: the input operation and the verification operation for producing the data for the pass/fail determination as in the prior art can be saved, and the input error can be reduced.
Further, if the processing data for defective product occurrence is stored for each cause of defective pressure contact and the detected waveform data is stored together with the cause of defective pressure contact in the defective product detected waveform data generating step, the following advantages are obtained: the cause of the pressure failure can be specified from the characteristics of the detected waveform data at the time of the terminal pressure welding process, and the pass/fail determination can be performed in accordance with the cause of the pressure failure.
Further, if the method is configured such that the defective product generating machining data is composed of data in a plurality of stages from the severe pressure failure to the mild pressure failure, the stepwise detection waveform data corresponding to the cause of the pressure failure can be obtained, and therefore, the pass/fail determination data with higher accuracy can be produced from the tendency of the obtained detection waveform data.
Further, according to the method for inspecting the defective crimping determination data of the terminal defective crimping detection apparatus of the present invention, the terminal crimping apparatus stores in advance the processing data for the non-defective product for the normal terminal crimping and the processing data for the defective product generation for the generation of the defective crimping, and includes: a defective product determination and inspection step of performing terminal crimping processing based on the processing data for defective product generation, and inspecting whether or not the terminal crimping processing is determined to be defective based on the detection waveform data generated at this time; and a non-defective product determination/inspection step of performing a terminal crimping process based on the non-defective product processing data, inspecting whether or not to determine a non-defective product to be crimped based on the detection waveform data generated at this time, and reporting that there is an abnormality when the non-defective product determination/inspection step determines that the crimping is defective and when the non-defective product determination/inspection step determines that the non-defective product is not a non-defective product to be crimped, the method has the following advantages: a terminal crimping device automatically performs special defective crimping and normal terminal crimping treatment, can easily check adequacy of data for qualified/unqualified determination based on determination results of the data for qualified/unqualified determination, does not need to manually change processing data causing special defective crimping every time during the check as in the prior art, can save verification operation, and can effectively prevent verification deficiency by storing various required processing data for defective product generation in advance.
Drawings
Fig. 1 is a general schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a terminal pressure defective detection device.
Fig. 3 is an explanatory diagram of a terminal machining data file stored in the terminal machining data storage unit.
Fig. 4 is a flowchart showing a pressure failure determination data creation process.
Fig. 5 is an explanatory diagram showing an example of a waveform of a relationship between time and pressure value of a non-defective product.
Fig. 6 is an explanatory diagram showing an example of a waveform of a relationship between time and pressure value in the case of a core wire breakage failure.
Fig. 7 is an explanatory diagram showing an example of a waveform of a relationship between time and a pressure value in the case of a defective coating biting.
Fig. 8 is an explanatory diagram showing an example of a waveform of a relationship between time and a pressure value in the case of a coating residual defect.
Fig. 9 is an explanatory diagram showing an example of a waveform of a relationship between time and a pressure value in the case of a core wire lift-out failure.
Fig. 10 is an explanatory diagram showing an example of a waveform of a relationship between time and a pressure value in the case of deep drawing failure.
Fig. 11 is an explanatory diagram showing an example of a waveform of a relationship between time and a pressure value in the case of the shallow pressure failure.
Fig. 12 is a flowchart showing a pressure failure determination data inspection process.
Fig. 13 is a schematic explanatory view of the terminal crimping device.
Fig. 14 is an explanatory diagram showing a relationship between time and pressure values in the terminal crimping device.
(description of reference numerals)
20: two-end-punching machine; 21: a terminal crimping device; 22: a terminal crimping failure detection device; 22 b: a pressure sensor; 24: a control unit; 24 a: a terminal processing data storage unit; 26: a computer; 26 a: and displaying the picture.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a schematic overall configuration, fig. 2 is a schematic block diagram, and 20 is a two-end termination machine configured to peel off a coating portion of a downstream-side end portion of a coated wire sequentially supplied by a predetermined length and crimp a terminal of a predetermined shape to a terminal portion of the peeled coated wire. Then, the coated electric wire is cut by measuring a predetermined length, the coating portion of the upstream end portion of the cut coated electric wire is peeled by a predetermined length, a terminal of a predetermined shape is crimped to the end portion of the peeled coated electric wire, and coated electric wires of predetermined lengths in which terminals are crimped to both end portions are sequentially manufactured, and the terminal crimping apparatus 21 and 21 for crimping the terminals to both end portions of the coated electric wire are provided.
Further, in order to detect the pressure value generated at a predetermined portion when the terminal pressure bonding devices 21, 21 perform the terminal pressure bonding process, for example, as in the conventional configuration shown in fig. 13, a pressure sensor 22b (for example, a piezoelectric sensor) connected to the device main body 22a of the terminal pressure bonding failure detection device 22 through a wiring 23 is arranged below the bottom plates in the terminal pressure bonding devices 21, 21. In addition, the arrangement position of the pressure sensor 22b is not limited thereto.
The terminal pressure failure detection device 22 includes: a detection waveform generating unit 22c that generates detection waveform data based on an output of the pressure value detected by the pressure sensor 22b, or the like; a data acquisition unit 22d for acquiring data of the pressure value detected by the pressure sensor 22 b; a memory 22e such as ROM and RAM; an allowable tolerance setting unit 22f for setting and adjusting an allowable tolerance; a pass/fail determination data setting unit 22g for setting reference waveform data for pass/fail determination and an allowable tolerance; a comparison unit 22h for comparing whether the detected waveform data is within the allowable tolerance range of the reference waveform data; a determination unit 22j for determining pass/fail based on the comparison result of the comparison unit 22 h; and a display control unit 22k for controlling the display of the display device, wherein the detection waveform generation unit 22c and the allowable tolerance setting unit 22f constitute a pass/fail determination data generation unit for generating reference waveform data for pass/fail determination and an allowable tolerance. The terminal pressure failure detection device 22 is, for example, a press force monitor.
A control unit 24 for driving and controlling the two-terminal crimping machine 20 is connected to a terminal crimping failure detection device 22 via an input/output cable 25, and is connected to a personal computer (so-called "computer") 26 as an operation unit via a data communication cable 27. The device main body 22a is LAN-connected to the computer 26 via a LAN cable 28.
Further, an operation screen of the terminal crimping apparatus 20, an operation screen of the terminal crimping failure detection device 22, a pressure waveform monitor screen, and the like are displayed on the display screen 26a of the computer 26.
The hard disk of the computer 26, which is an internal memory or an external memory of the storage device in the control unit 24 of the two-terminal crimping machine 20, is provided with a terminal processing data storage unit 24a that stores a plurality of files of terminal processing data generated in advance for crimping terminals of various shapes and various materials to terminal portions of coated wires of various diameters and various materials. As shown in fig. 3, information such as the file number (for example, nos. 1, 2, and … …) of the terminal processed data, the wire name, the terminal name, and the processed data is input to each file of the terminal processed data stored in the terminal processed data storage unit 24a, and is identified and specified.
In the present embodiment, not only the non-defective product machining data for the normal terminal crimping as described above but also the defective product generation machining data for the specific generation of the defective crimping are stored in advance in the terminal machining data file of the terminal machining data storage unit 24 a. As such processing data for defective product generation, processing data for core wire breakage (e.g., nos. a +1, … …) in which a part of the core wire portion is cut, processing data for cladding biting (e.g., nos. b +1, … …) in which the cladding portion is also pressure-bonded to the pressure-bonded portion of the core wire portion, processing data for cladding residue (e.g., nos. c +1, … …) in which peeling residue of the cladding portion occurs are stored, the processing data includes processing data for raising the core wire (for example, nos. d, d +1, … …) in which a part of the core wire portion is crimped in a state of protruding from the terminal, processing data for deep-pressing (for example, nos. e, e +1, … …) in which the core wire portion exceeds a predetermined position of the core wire crimping portion of the terminal, and processing data for shallow-pressing (for example, nos. f, f +1, … …) in which the core wire portion does not reach the predetermined position of the core wire crimping portion of the terminal, which are generated from various causes of poor crimping.
The processing data for generating defective products for generating such a pressure failure is composed of data at a plurality of stages from a severe pressure failure to a mild pressure failure, and is not specific processing data, but processing data obtained by automatically correcting the processing data for normal terminal pressure connection by a predetermined correction value. For example, the data of the plurality of stages of severe to mild pressure failure is obtained by correcting the data of the cut position of the regular cutter for peeling the coating in the both-end terminal 20 in stages.
Further, the hard disk of the computer 26, which is an internal memory of the storage device of the terminal crimping failure detection device 22 or an external memory, is provided with a pass/fail determination data storage unit 22m that stores a plurality of files of pass/fail determination data, which is constituted by a combination of reference waveform data generated in advance and an allowable tolerance corresponding to the reference waveform data, as each of the pass/fail determination data corresponding to the terminal processing data (for example, nos. 1, 2, and … …) for determining a pass/fail product at the time of the terminal crimping process. Information such as a document number (for example, nos. 1, 2, and … …), a wire name, and a terminal name is input to each document of the pass/fail determination data stored in the pass/fail determination data storage unit 22m, and is identified and identified. By performing input setting from the display screen 26a, the corresponding pass/fail determination data is selected from the pass/fail determination data storage unit 22m and set in the pass/fail determination data setting unit 22 g.
Next, a method for creating the pass/fail determination data according to the present embodiment will be described based on a flowchart shown in fig. 4. First, it is determined whether or not new pass/fail determination data is to be created (step S1). When the data for the pass/fail determination is created, the processing data for the non-defective product for the normal terminal crimping, such as the wire name, the terminal name, and the processing data as the target terminal crimping conditions, is input from the operation unit of the computer 26 and stored in the terminal processing data storage unit 24a of the both-end termination machine 20.
When the data for the pass/fail determination is created, it is determined whether or not the operation of the data creation key for starting the creation is performed from the operation unit of the computer 26 (step S2), and if the operation of the data creation key is performed, the operation signal is supplied to the both-end terminal crimping device 20 and the terminal crimping failure detection device 22, and the both-end terminal crimping device 20 and the terminal crimping failure detection device 22 are set to the data creation mode (step S3). According to this data creation mode, the both-end-punch 20 performs internal processing, and based on corresponding normal machining data for non-defective products, machining data for defective product generation, which is generated and stored in stages from various causes of defective pressure connection such as machining data for core wire breakage, machining data for cladding biting, machining data for cladding remaining, machining data for core wire protrusion, machining data for deep pressure, and machining data for shallow pressure, is automatically corrected.
Next, if a start key operation is performed (step S4), processing of the terminal crimping process is started based on the defective product producing processing data (step S5). The machining order based on the machining data for defective product generation is set as appropriate, and for example, in the present embodiment, machining is set in order from the smaller file number to the larger file number of the terminal machining data file. In the present embodiment, the order of the document numbers is set so that the severe pressure failure is stepwise to the mild pressure failure for each cause of the pressure failure such as the core wire breakage and the coating bite.
When the receiving terminal is crimped to the covered wire by the terminal crimping devices 21 and 21, the output of the pressure value from the pressure sensor 22b changes, the detection waveform generating unit 22c analyzes the detection data acquired by the data acquiring unit 22d to generate detection waveform data, and the detection waveform data is stored in the memory together with the defective types such as core wire breakage and covering biting which are causes of the crimping failure (step S6) (defective detection waveform data generating step).
Then, the process proceeds to step S7, where it is determined whether or not all of the machining based on the defective product producing machining data has been completed, and if not, the process returns to step S5, where the machining is performed based on the next defective product producing machining data. In this way, steps S5 to S7 are repeated a predetermined number of times, and finally, after all the processing based on the defective product producing processing data is completed, the terminal is processed by the terminal crimping process based on the defective product processing data (step S8).
Then, when the receiving terminal is crimped to the covered wire by the terminal crimping devices 21 and 21, the output of the pressure value from the pressure sensor 22b changes, the detection waveform generating unit 22c analyzes the detection data acquired by the data acquiring unit 22d to generate detection waveform data, and the detection waveform data is stored in the memory as the detection waveform data of the non-defective product (step S9) (non-defective product detection waveform data generating step). For example, fig. 5 shows an example of a detection waveform of a non-defective product, and fig. 6 to 11 show examples of detection waveforms superimposed on the detection waveform of a non-defective product, in the case where each of the core wire breakage failure, the coating biting failure, the coating remaining failure, the core wire lift failure, the deep drawing failure, and the shallow drawing failure is caused by a chain line.
Then, based on the detected waveform data of the non-defective product and the detected waveform data of the defective products, which are defective products having various types of pressure contact failures, pass/fail determination data is generated, and a document number is assigned to the pass/fail determination data storage unit 22m and stored in the pass/fail determination data setting unit 22g as pass/fail determination data (step S10) (determination data generation step). When the data for the pass/fail determination is generated, the reference waveform data and the allowable tolerance of the determination threshold for the pass and fail are calculated based on the relationship between the detected waveform data of the obtained pass and the detected waveform data of the fail, and the data for the pass/fail determination is produced. For example, in the present embodiment, the detected waveform data of the non-defective product generated by the detected waveform generating unit 22c is set as the reference waveform data, and an appropriate range such as 1/2 or 2/3 of the difference between pressure values in proximity to each other between the reference waveform data and the portion indicating the characteristic of each detected waveform data of the pressure failure is automatically set as the allowable tolerance, based on the setting parameter set by the allowable tolerance setting unit 22 f.
When the data for the pass/fail determination is generated and set, the data creation mode is canceled, the both-end termination machine 20 returns to the normal terminal crimping processing mode, and the creation of a series of data for the pass/fail determination is terminated (step S11).
In addition, if the crimping process of the terminal is started in this state, whether the crimping process is acceptable or not in the coated electric wire to which the terminal is crimped is determined based on the reference waveform data of the produced data for determination of pass/fail and the allowable tolerance corresponding thereto, and whether the coated electric wire is a pass product or a fail product is identified.
As described above, according to the method of generating the defective pressure contact determination data in the terminal pressure contact failure detection device 22 of the present embodiment, the terminal pressure contact device 21 performs the terminal pressure contact processing based on not only the normal qualified product processing data but also the defective product generation processing data in which various types of defective pressure contact failures are automatically generated, and the data for the pass/fail determination is automatically generated based on the detected waveform data of the processing based on the defective pressure contact failure at that time and the detected waveform data of the processing based on the qualified product, and therefore, there are advantages in that: it is not necessary to manually input an allowable tolerance from an operation screen in order to create pass/fail determination data as in the conventional art, thereby effectively saving input operations and reducing input errors.
Further, since various pressure-contact failures are intentionally generated in advance and the data for the pass/fail determination is created based on the detected waveform data, there are also advantages as follows: the validity of data can be verified without any special occurrence of various pressure failures after the production of data for pass/fail determination as in the conventional art, and thus the verification operation can be saved.
In addition, since the input operation and the verification operation can be saved, the operation rate of the both-end terminal 20 can be increased, and the input error can be prevented, so that there are advantages that detection omission of defective products is reduced, and the quality is improved.
Further, since the processing data for generating defective products is composed of data in a plurality of stages from a severe pressure failure to a mild pressure failure, and stepwise detection waveform data corresponding to the cause of each pressure failure is obtained, there are advantages as follows: based on the tendency of the obtained detection waveform data, it is possible to produce data for pass/fail determination with higher accuracy.
Further, the method is configured as follows: since the processing data for defective product generation is stored for each cause of the defective product, and the detection waveform data is stored together with the cause of the defective product in the defective product detection waveform data generation step, the cause of the defective product can be identified from the characteristics of the detection waveform data at the time of the terminal crimping process, and the cause of the defective product can be identified, whereby manual inspection at the time of defective product generation is facilitated.
As shown in fig. 6 to 11, the method of determining whether or not the pressure value at each point or point detected by each pressure sensor 22b is within the range of the allowable tolerance, and the method of determining whether or not the area (so-called sum) of each region into which the detected waveform data is appropriately divided along the time axis is within the range of the allowable tolerance, when the determination of the non-defective product or the defective product is performed based on the data for non-defective/defective determination, by selectively adopting the features of the detected waveform data according to each pressure failure at the time of the terminal pressure bonding process, have the following advantages: the pass/fail determination with higher accuracy corresponding to the cause of the pressure failure can be performed.
Next, a method of checking whether or not the pass/fail determination data set in the terminal defective pressure welding detection device 22 of the present embodiment is valid will be described based on the flowchart shown in fig. 12.
First, it is determined whether or not the data for the pass/fail determination is to be inspected (step S21). When the data for the pass/fail determination is checked, the input operation from the operation unit of the computer 26 selects the processing data for the non-defective product for the normal terminal crimping, such as the wire name, the terminal name, and the processing data as the target terminal crimping condition, from the terminal processing data file stored in the terminal processing data storage unit 24a of the both-end termination machine 20.
Then, when the data for the pass/fail determination is inspected, it is determined whether or not the operation unit of the computer 26 has operated the data check key for starting the inspection (step S22), and if the data check key has been operated, the operation signal is supplied to the both-end-punching machine 20 and the terminal-press-contact-failure detecting device 22, and the both-end-punching machine 20 and the terminal-press-contact-failure detecting device 22 are set to the data check mode (step S23). According to this data check mode, the both-end-up machine 20 performs internal processing, and as described above, based on the corresponding normal machining data for non-defective products, machining data for defective product generation, which is generated and stored in stages from various causes of pressure failure such as machining data for core wire breakage, machining data for cladding biting, machining data for cladding remaining, machining data for core wire protrusion, machining data for deep-pressing, and machining data for shallow-pressing, is generated by automatic correction.
Next, after the start key operation is performed (step S24), the processing of the terminal crimping process is started based on the defective product producing processing data (step S25). The machining order based on the defective product generation machining data is appropriately set as described above, and for example, in the present embodiment, the machining is set so as to be performed in the order of the smaller file number of the terminal machining data file to the larger file number. In the present embodiment, the document numbers are set in order from the severe pressure failure to the mild pressure failure in stages for each cause of the pressure failure such as the core wire breakage and the coating biting.
The data acquiring unit 22d acquires the output change of the pressure value from the pressure sensor 22b when the terminal is crimped to the covered wire by the terminal crimping devices 21, 21 by the start of the terminal crimping process, analyzes the detection data by the detection waveform generating unit 22c to generate detection waveform data, and displays the detection waveform data on the display screen 26a of the computer 26 in a state where the detection waveform based on the detection waveform data overlaps the reference waveform based on the reference waveform data of the data for determination of pass/fail by the display control unit 22 k.
Then, it is determined whether or not a defective pressure contact is detected from the defective product generating machining data (step S26) (defective product determination and inspection step). That is, the comparison unit 22h compares whether or not the detected waveform data is within the allowable tolerance of the reference waveform data, the determination unit 22j determines pass/fail, and the result of the determination is displayed on the display screen 26 a. At this time, if the determination result is not the determination of the defective pressure contact, a warning message indicating that the data for the pass/fail determination is defective or that the terminal pressure contact defect detection device 22 itself is abnormal is displayed on the display screen 26a (step S27), and an abnormality report is performed, and the both-end terminal 20 is stopped without shifting to the next step.
If a defective pressure is detected in step S26, the display screen 26a displays that the determination result of defective pressure and the pass/fail determination data are not abnormal (step S28), and determines whether or not all machining based on the defective product generation machining data has been completed (step S29). If all the machining based on the defective product producing machining data has not been completed, the process returns to step S25, and machining is performed based on the next defective product producing machining data. In this way, steps S25 to S29 are repeated a predetermined number of times, and after all the machining based on the defective product producing machining data is completed, the terminal crimping process is performed based on the defective product machining data (step S30).
As a result, it is determined whether or not a defective pressure welding is detected from the machining data for defective products (step S31) (a defective product determination and inspection step), and if the determination result in this case is a determination of a defective pressure welding, a warning message indicating that the defective/defective data is defective or the terminal defective pressure welding detection device 22 itself is abnormal is displayed on the display screen 26a (step S32), and an abnormality is reported, and the both-end terminal 20 is stopped without shifting to the next step.
If a defective pressure welding is not detected in step S31, the display screen 26a displays that the result of the determination of the non-defective pressure welding and the data for the pass/fail determination are not abnormal (step S33), the data checking mode is canceled, the end-effector 20 returns to the normal terminal pressure welding processing mode, and the inspection of the series of data for the pass/fail determination is ended (step S34).
As described above, the method for inspecting the pressure failure determination data in the terminal pressure failure detection device 22 according to the present embodiment has the following advantages: the terminal crimping device 21 automatically performs special defective crimping and normal terminal crimping processing by using machining data for non-defective products and machining data for defective product generation stored in advance, and can easily check adequacy of the data for non-defective/defective determination based on a determination result of the data for non-defective/defective determination at this time.
In addition, since the validity of the data for the pass/fail determination and the verification operation of the failure of the terminal crimping failure detection device 22 can be saved, there are the following advantages: the operation rate of the both-end crimping machine 20 can be increased, and the reliability of data for failure detection and pass/fail determination of the terminal crimping failure detection device 22 can be improved, so that detection omission of defective products is reduced, and the quality is improved.
In the above-described embodiment, although the processing data for correction in a plurality of stages from severe to mild is stored in advance as the processing data for defective product generation for various types of pressure-contact failures such as core wire breakage and coating biting, the processing data for defective product and the processing data for severe defective product generation corresponding to various types of pressure-contact failures may be input and stored in advance before the data for pass/fail determination is produced, and when the data production mode in step S3 is reached, the processing data for defective product generation in a plurality of stages from severe to mild is automatically generated from the processing data by internal processing.
Further, the processing data for defective products may be prepared from only the processing data for slight defective product generation for various pressure-bonding failures such as core wire breakage, instead of the processing data for defective product generation from heavy to light.
The allowable tolerance for the pass/fail determination may be based on a range of an allowable value obtained by shifting the reference waveform data by a predetermined value in the vertical direction with reference to the reference waveform data, or may be a range of an allowable value obtained by dividing the reference waveform data into a plurality of regions along the time axis and comparing the areas of the regions, or may be a range of an allowable value obtained by comparing the peak value and the total area of the waveform data with the peak value and the total area of the reference waveform data.
Further, although a method of displaying and reporting an abnormality at the time of examination on the display screen 26a is shown, the abnormality may be reported by sound, light, or the like.
Claims (4)
1. A method for creating crimp failure determination data of a terminal crimp failure detection device, which determines whether or not a crimp process is acceptable from preset data for pass/fail determination based on detection waveform data generated based on a change in a pressure value occurring at a predetermined portion when the terminal crimp device performs the terminal crimp process, is characterized in that:
the terminal crimping device stores in advance machining data for non-defective products defining the operation of the device for crimping a normal terminal and machining data for defective product generation defining the operation of the device for generating a defective crimping,
the method for producing the defective pressure judgment data of the terminal defective pressure detection device comprises the following steps:
a defective product detection waveform data generation step of generating and storing detection waveform data indicating a change in the pressure value at that time by operating the terminal crimping device to perform a terminal crimping process based on the defective product generation processing data;
a non-defective product detection waveform data generation step of operating the terminal crimping device based on the non-defective product machining data to perform terminal crimping processing, and generating and storing detection waveform data indicating a change in the pressure value at that time; and
a determination data generation step of calculating reference waveform data and an allowable tolerance based on a relationship between the detected waveform data stored in the defective product detected waveform data generation step and the detected waveform data stored in the non-defective product detected waveform data generation step, and generating the pass/fail determination data;
the processing data for defective product generation is generated by correcting, by an arithmetic unit, a data element corresponding to a cause of the defective product processing data based on a predetermined correction value.
2. A method for creating crimp failure determination data of a terminal crimp failure detection device according to claim 1, characterized in that: the defective product generation processing data is stored for each cause of the defective pressure welding, and the defective product detection waveform data generation step stores the detection waveform data together with the cause of the defective pressure welding.
3. A method for generating data for determining a defective pressure contact in a terminal defective pressure contact detection device according to claim 1 or claim 2, wherein: the defective product generating machining data includes data at a plurality of stages from a severe pressure welding failure to a mild pressure welding failure.
4. A method for inspecting data for determining defective pressure welding of a terminal pressure welding defective detection device, which determines whether or not a pressure welding process is acceptable from data for pass/fail determination set in advance, based on detection waveform data generated based on a change in a pressure value occurring at a predetermined portion when the terminal pressure welding device performs the terminal pressure welding process, is characterized in that:
the terminal crimping device stores in advance machining data for non-defective products defining the operation of the device for crimping a normal terminal and machining data for defective product generation defining the operation of the device for generating a defective crimping,
the method for inspecting the pressure failure determination data of the terminal pressure failure detection device includes:
a defective product determination and inspection step of operating the terminal crimping device based on the defective product generation processing data to perform terminal crimping processing, and inspecting whether or not it is determined that crimping is defective based on the detection waveform data generated at this time; and
a non-defective product determination and inspection step of operating the terminal crimping device based on the non-defective product machining data to perform terminal crimping processing, and inspecting whether or not to determine a non-defective product for crimping based on the detection waveform data generated at this time,
generating the defective product producing machining data by correcting a data element corresponding to a cause of the defective product producing machining data among the defective product machining data based on a predetermined correction value by an arithmetic unit,
when the defective product determination and inspection step determines that the pressure is defective and the non-defective product determination and inspection step determines that the pressure is a non-defective product, the presence of an abnormality is reported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248538.7A CN111829761A (en) | 2019-03-29 | 2019-03-29 | Method for producing crimp failure determination data for terminal crimp failure detection device and method for inspecting crimp failure determination data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248538.7A CN111829761A (en) | 2019-03-29 | 2019-03-29 | Method for producing crimp failure determination data for terminal crimp failure detection device and method for inspecting crimp failure determination data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111829761A true CN111829761A (en) | 2020-10-27 |
Family
ID=72914311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910248538.7A Pending CN111829761A (en) | 2019-03-29 | 2019-03-29 | Method for producing crimp failure determination data for terminal crimp failure detection device and method for inspecting crimp failure determination data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111829761A (en) |
-
2019
- 2019-03-29 CN CN201910248538.7A patent/CN111829761A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5092026A (en) | Crimp height monitor | |
| JP4657880B2 (en) | Crimping defect determination data creation method and crimping defect determination data inspection method of terminal crimping defect detection device | |
| KR20180122115A (en) | Welding inspection device and inspection method for secondary battery | |
| JP4031214B2 (en) | Terminal crimping state identification method | |
| JP2006220460A (en) | Cable diagnostic apparatus and cable diagnostic method | |
| JP3627212B2 (en) | Terminal crimping state discriminating method and apparatus, and caulking die wear state detecting method | |
| CN112404691A (en) | Ultrasonic welding system | |
| CN111829761A (en) | Method for producing crimp failure determination data for terminal crimp failure detection device and method for inspecting crimp failure determination data | |
| JP4070705B2 (en) | Terminal crimp failure detection device | |
| CN117172624B (en) | Intelligent monitoring management system of wire harness production line | |
| CN111832186A (en) | Weld performance prediction method | |
| EP0419129A1 (en) | Crimp height monitor | |
| JP2001035628A (en) | Method and device for judging terminal crimping condition | |
| CN107796818B (en) | The method of on-line checking bi-metal bandsaw blades welding quality | |
| JP2007103220A (en) | Terminal crimping failure detection device and its crimping failure determination data adjustment method | |
| JP2007059110A (en) | Poor crimping contact determining data creation method for poor terminal crimping detecting device | |
| JP5525144B2 (en) | Waveform determination apparatus and time axis position adjustment method in the waveform determination apparatus | |
| KR20180079028A (en) | Terminal compressing apparatus and terminal pressing method | |
| US20220085562A1 (en) | Method and device for checking the quality of a crimping | |
| WO2017138115A1 (en) | Terminal crimping defect detection device | |
| JP4469157B2 (en) | Terminal crimp failure detection device | |
| JP2003086323A (en) | Production method of insulator cut connection | |
| KR101584421B1 (en) | Monitoring system for arc welding | |
| WO2017138114A1 (en) | Abnormality monitoring device for terminal crimping device | |
| JP2016154115A (en) | Crimp state inspection device and crimp state inspection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201027 |
|
| WD01 | Invention patent application deemed withdrawn after publication |