CN113391241A - Terminal crimping inspection device and method for updating reference waveform of terminal crimping inspection - Google Patents
Terminal crimping inspection device and method for updating reference waveform of terminal crimping inspection Download PDFInfo
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- CN113391241A CN113391241A CN202110256734.6A CN202110256734A CN113391241A CN 113391241 A CN113391241 A CN 113391241A CN 202110256734 A CN202110256734 A CN 202110256734A CN 113391241 A CN113391241 A CN 113391241A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
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Abstract
The terminal crimping inspection device includes: a storage unit that stores a reference waveform; a pressure waveform acquisition unit that acquires a pressure waveform of the terminal crimping N times (where N is a natural number of 2 or more); a first determination unit that determines whether or not a difference between the acquired pressure waveform and the reference waveform for each of the N terminal crimping times is within a first predetermined value; an average pressure waveform calculation unit that calculates an average pressure waveform of the terminal crimping N times; a second determination unit that determines whether or not a difference between the average pressure waveform and the reference waveform is within a second predetermined value; and an updating unit that allows the reference waveform to be updated when both a determination is made that the difference between the acquired pressure waveform and the reference waveform is within a first predetermined value for all N times of terminal crimping and a determination is made that the difference between the average pressure waveform and the reference waveform is within a second predetermined value.
Description
Technical Field
The present invention relates to a terminal crimping inspection device for inspecting whether or not a terminal is well crimped to an end of an electric wire, and a method for updating a reference waveform for the terminal crimping inspection.
Background
Conventionally, in manufacturing a wire harness or the like, a terminal crimping device for crimping a terminal to an end of an electric wire is used. Since the terminal-equipped electric wire whose terminal is not well crimped is a defective product, it is desirable to check whether the terminal is well crimped at the time of terminal crimping. Therefore, conventionally, a terminal crimping inspection device for inspecting whether or not a terminal is well crimped to an end of an electric wire has been used.
Japanese patent laid-open publication No. 2005-135820 describes an apparatus for detecting a pressure applied to a substrate of a terminal crimping apparatus by a pressure sensor and inspecting whether or not the terminal is crimped based on the pressure. In this apparatus, first, a pressure waveform indicating a change in pressure with respect to the elapsed time of the terminal crimping process is generated for a non-defective product. Hereinafter, this pressure waveform is referred to as a reference waveform. Then, the pressure waveform of the test piece is compared with a reference waveform, and whether the test piece is a non-defective piece or a defective piece is determined based on whether the difference between the pressure waveform of the test piece and the reference waveform is equal to or less than a predetermined value.
Disclosure of Invention
Technical problem to be solved
However, the pressure waveform of the non-defective product is slightly different due to a change in the installation environment of the terminal crimping device, aging, or the like. Therefore, the temporarily set reference waveform may become inappropriate thereafter. Therefore, it is preferable to appropriately update the reference waveform. However, when a user who is not knowledgeable or experienced updates the reference waveform, the reference waveform may be updated without being aware that the updated reference waveform is inappropriate. In order to prevent an inappropriate update of the reference waveform, it is considered to set a certain limit to the update.
Japanese patent laid-open No. 2016-154115 discloses that the correction range of the reference data is limited to a predetermined range in order to prevent the difference between the reference data and the correction data from increasing. However, in Japanese patent laid-open No. 2016-154115, only the general idea of limiting the range of correction is described, and any specific method is not disclosed.
The invention aims to provide a terminal crimping inspection device and a method for updating a reference waveform of a terminal crimping inspection, which can prevent improper updating of the reference waveform.
(II) technical scheme
A terminal crimping inspection device according to the present invention is a device for inspecting whether or not a terminal is crimped using a pressure waveform indicating a relationship between a degree of progress of terminal crimping by a terminal crimping device and a pressure generated in the terminal crimping device, the terminal crimping inspection device including: a storage unit that stores a reference waveform of the pressure waveform; a pressure waveform acquisition unit that acquires a pressure waveform for each of N times (where N is a natural number of 2 or more) terminal crimping; a first determination unit that determines whether or not a difference between the acquired pressure waveform and the reference waveform for each of the N terminal crimping times is within a first predetermined value; an average pressure waveform calculation unit that calculates an average pressure waveform of the terminal crimping N times; a second determination unit that determines whether or not a difference between the average pressure waveform and the reference waveform is within a second predetermined value; and an updating unit that allows updating of the reference waveform when both the difference between the acquired pressure waveform and the reference waveform is determined to be within the first predetermined value in all N terminal crimping times and the difference between the average pressure waveform and the reference waveform is determined to be within the second predetermined value are satisfied.
A method of updating a reference waveform of a terminal crimping inspection according to the present invention is a method of updating the reference waveform in a terminal crimping inspection for inspecting whether or not a terminal crimping is good based on a difference between a pressure waveform representing a relationship between a degree of progress of terminal crimping by a terminal crimping device and a pressure generated in the terminal crimping device and a reference waveform, the method including: a pressure waveform acquisition step of performing terminal crimping N (where N is a natural number of 2 or more) times to acquire pressure waveforms of the respective times; a first determination step of determining whether or not a difference between the acquired pressure waveform and the reference waveform for each of the N terminal crimping times is within a first predetermined value; an average pressure waveform calculation step of calculating an average pressure waveform of the terminal crimping for N times; a second determination step of determining whether or not a difference between the average pressure waveform and the reference waveform is within a second predetermined value; and an updating step of allowing the reference waveform to be updated when both the difference between the acquired pressure waveform and the reference waveform is determined to be within the first predetermined value in all the N terminal crimping times and the difference between the average pressure waveform and the reference waveform is determined to be within the second predetermined value.
According to the terminal pressure welding inspection device and the method for updating the reference waveform of the terminal pressure welding inspection, the terminal pressure welding is performed N times when the reference waveform is updated, and the updating of the reference waveform is prohibited when the difference between the average pressure waveform obtained by the terminal pressure welding and the reference waveform is larger than the second predetermined value. In addition, for each of the N times of terminal crimping, if the difference between the acquired pressure waveform and the reference waveform is not within the first predetermined value, the update of the reference waveform is prohibited. This prevents the reference waveform from being updated inappropriately even by a user who lacks knowledge or experience.
The updating unit of the terminal pressure welding inspection device may be configured to store the average pressure waveform in the storage unit as an updated reference waveform when it is determined that the difference between the acquired pressure waveform and the reference waveform is within the first predetermined value in all the N times of terminal pressure welding and it is determined that the difference between the average pressure waveform and the reference waveform is within the second predetermined value.
In the updating step of the method for updating the reference waveform, when it is determined that the difference between the acquired pressure waveform and the reference waveform is within the first predetermined value in all the N terminal crimping times and it is determined that the difference between the average pressure waveform and the reference waveform is within the second predetermined value, the average pressure waveform is set as the updated reference waveform.
According to the terminal pressure contact inspection apparatus and the method for updating the reference waveform, the average pressure wave of the N pressure waveforms each having a difference from the reference waveform within a first predetermined value is formed as the updated reference waveform. This makes it possible to easily set an appropriate waveform as the updated reference waveform.
The terminal pressure welding inspection device may include a notification unit configured to notify when updating of the reference waveform is prohibited.
The method of updating the reference waveform may include a notification step of notifying when the updating of the reference waveform is prohibited.
According to the terminal pressure welding inspection device and the method for updating the reference waveform of the terminal pressure welding inspection, the user can quickly and accurately recognize that the updating of the reference waveform is prohibited, and can easily, quickly and reliably perform the subsequent processing.
(III) advantageous effects
According to the present invention, it is possible to provide a terminal crimping inspection device and a method of updating a reference waveform for terminal crimping inspection, which can prevent improper updating of the reference waveform.
Drawings
Fig. 1 is a front view of the terminal crimping device.
Fig. 2 is a side view of the terminal crimping device.
Fig. 3 is a configuration diagram of the terminal crimping inspection device.
Fig. 4 is a functional block diagram of the terminal crimping inspection device.
Fig. 5 is a flowchart of a terminal crimping inspection method.
Fig. 6 is an explanatory diagram of a pressure waveform.
Fig. 7 is a flowchart of an update method of the reference waveform.
Description of the reference numerals
1-a terminal crimping device; 2-an anvil block; 3-a crimping device; 4-a motor; 10-terminal; 12-an electrical wire; 20-a controller; 21-a pressure sensor; 41-a storage section; 42-a pressure waveform acquisition section; 45-average pressure waveform calculation section; 46-a first determination section; 47-a second decision section; 48-an update section; 49-notification section; 50-terminal crimp inspection device.
Detailed Description
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As will be described in detail later, the terminal crimping inspection device 50 of the present embodiment is a device for inspecting whether or not terminal crimping is good, using a pressure waveform indicating a relationship between the degree of progress of terminal crimping by the terminal crimping device 1 and a pressure generated in the terminal crimping device 1.
First, the structure of the terminal crimping device 1 will be described with reference to fig. 1 and 2. The terminal crimping device 1 described below is merely an example, and the configuration of the terminal crimping device to which the present invention is applied is not limited at all. The present invention can be applied to any known terminal crimping device.
Fig. 1 is a front view of the terminal crimping device 1, and fig. 2 is a side view of the terminal crimping device 1. The terminal crimping device 1 includes: an anvil 2, a pressure welding device 3 which can be lifted and lowered, and a motor 4 which lifts and lowers the pressure welding device 3. Here, the motor 4 is constituted by a servo motor capable of detecting a rotational position. However, the type of the motor 4 is not particularly limited, and a motor other than a servo motor may be used. The motor 4 is an example of an electric actuator that moves the crimper 3 toward and away from the anvil 2. However, the actuator is not limited to the motor 4. Any actuator that can raise and lower the crimper 3 can be used as the actuator.
As shown in fig. 1, a terminal supply device 5 is disposed on a side of the anvil 2. The terminal supply device 5 is configured to sequentially supply a terminal group 11 formed by connecting a plurality of terminals 10 to the anvil 2. When the crimper 3 is lowered in a state where the electric wire 12 and the terminal 10 are arranged between the crimper 3 and the anvil 2, the terminal 10 is separated from the adjacent terminal 10 by the crimper 3 and crimped on the electric wire 12. In the present embodiment, the motor 4, the crimper 3, and the anvil 2 constitute a crimping portion that crimps the terminal 10 onto the electric wire 12 by applying pressure to the terminal 10.
When the terminal 10 is crimped to the end of the electric wire 12, pressure is generated at the crimped portion. In the present embodiment, a pressure sensor 21 that detects a pressure generated in the pressure-bonding section is provided. Here, the pressure sensor 21 is constituted by a piezoelectric element connected to the anvil 2. However, the specific structure of the pressure sensor 21 is not limited at all. Any sensor that can detect pressure can be used as appropriate, without being limited to the piezoelectric element. The pressure sensor 21 may be directly connected to the anvil 2, but in the present embodiment, the pressure sensor 21 is indirectly connected to the anvil 2. That is, there are other components interposed between the pressure sensor 21 and the anvil 2. The pressure sensor 21 may be arranged to detect a pressure generated at any portion of the pressure-bonding section, and is not necessarily connected to the anvil 2. The pressure sensor 21 can be connected to the crimper 3, for example. Further, the terminal may be connected to a portion other than the pressure-bonding section as long as the pressure generated by the pressure-bonding of the terminal can be detected.
The pressure sensor 21 is electrically connected to the controller 20. The term "electrically connected" means a connection that can communicate by wire or wirelessly. The controller 20 may be a microcomputer built in the terminal crimping device 1, or may be a computer (for example, a personal computer) provided outside the terminal crimping device 1. In the present embodiment, the pressure sensor 21 and the controller 20 are connected by an electric wire. The pressure sensor 21 is configured to output a voltage value or a current value corresponding to the magnitude of the pressure when receiving the pressure. The controller 20 detects the pressure generated at the crimping portion based on the value of the voltage or the current received from the pressure sensor 21.
Next, the terminal pressure contact inspection apparatus 50 will be described. As shown in fig. 3, the terminal crimping inspection device 50 of the present embodiment includes: the pressure sensor 21, the a/D converter 22, the controller 20, and the display 26 described above. The terminal pressure welding inspection device 50 may further include an external storage device 27 such as a hard disk. The controller 20 includes a CPU30, a ROM24, and a RAM 25. A servo amplifier 8 is connected to the motor 4, and the servo amplifier 8 is connected to the controller 20.
Fig. 4 is a functional block diagram of the controller 20. The controller 20 includes: the terminal crimping apparatus 1 includes a storage unit 41 that stores a reference waveform of a pressure waveform, a pressure waveform acquisition unit 42 that acquires the pressure waveform when crimping a terminal in the terminal crimping apparatus 1, a calculation unit 43 that calculates a difference between the acquired pressure waveform and the reference waveform, and a quality determination unit 44 that determines whether or not the difference between the acquired pressure waveform and the reference waveform is within a predetermined value. The controller 20 further includes an average pressure waveform calculation unit 45, a first determination unit 46, a second determination unit 47, an update unit 48, and a notification unit 49. In the present embodiment, the pressure waveform acquisition unit 42, the calculation unit 43, the quality determination unit 44, the average pressure waveform calculation unit 45, the first determination unit 46, the second determination unit 47, the update unit 48, and the notification unit 49 are realized by executing a predetermined program by the CPU 30. The storage section 41 is realized by a ROM 24. However, an external storage device 27 may be used as the storage unit 41.
Next, a method of inspecting terminal crimping will be described with reference to the flowchart of fig. 5. The terminal crimping device 1 performs the inspection of the quality of the terminal crimping every time the terminal crimping is performed. First, the terminal crimping is performed in the terminal crimping device 1, and the pressure waveform acquisition unit 42 acquires the pressure waveform W (step S1). The pressure waveform W is a waveform indicating a relationship between the degree of progress of terminal crimping by the terminal crimping device 1 and the pressure generated in the terminal crimping device 1. Here, as shown in fig. 6 (a), the degree of progress of the terminal crimping is represented by the position of the crimper 3 (hereinafter referred to as a crimper position). However, the parameter indicating the degree of progress of the terminal crimping is not limited to the crimper position, and may be other parameters such as the moving distance of the crimper 3, the speed of the crimper 3, the acceleration of the crimper 3, the current supplied to the motor 4, the rotational position of the motor 4, and the elapsed time after the start of the terminal crimping operation.
When the terminal is crimped, the crimper 3 is lowered. In the figure, P0 represents the crimper position when the crimper 3 is in contact with the terminal 10, and P1 represents the position of the bottom dead center of the crimper 3. As shown in fig. 6 (a), the pressure rises after the crimper 3 comes into contact with the terminal 10 until the crimper 3 reaches the bottom dead center. In checking the terminal crimping, the waveform of the entire region of P0 to P1 may be used as the pressure waveform W, but for example, as shown in fig. 6 (b), the waveform of a part of the regions of P0 to P1 (for example, the regions of P2 to P3) may also be used. For example, by using a waveform in a region where a difference between a non-defective product and a defective product is significantly generated, the accuracy of inspection can be improved. Further, the waveforms of a plurality of regions in P0 to P1 may also be used in combination as the pressure waveform W. The manner of use of the pressure waveform W is not particularly limited.
After the pressure waveform acquisition unit 42 acquires the pressure waveform W, the calculation unit 43 reads the reference waveform WT from the storage unit 41, and calculates the difference between the pressure waveform W and the reference waveform WT (step S2). The reference waveform WT is a pressure waveform obtained when the terminal pressure is previously confirmed to be good. Here, the difference between the pressure waveform W and the reference waveform WT refers to, for example, the difference between the integrated values of the pressure waveform W and the reference waveform WT. For example, in the example shown in fig. 6 (a), the following may be used: the difference W-WT between the pressure waveform W and the reference waveform WT becomes Δ W2- Δ W1. In fig. 6 (a), Δ W1>0 and Δ W2> 0. Alternatively, the difference between the pressure waveform W and the reference waveform WT may be an integrated value of an absolute value of the difference between the pressure waveform W and the reference waveform WT. For example, in the example shown in fig. 6 (a), the following may be used: the difference W-WT between the pressure waveform W and the reference waveform WT becomes Δ W1+ Δ W2. If the difference between the acquired pressure waveform W and the reference waveform WT is within a predetermined value, it is estimated that the terminal pressure connection with the pressure waveform W is good. The predetermined value is stored in the storage unit 41 in advance.
Next, the quality determination unit 44 reads a predetermined value from the storage unit 41, and determines whether or not the difference between the pressure waveform W and the reference waveform WT is within the predetermined value (step S3). Then, if the difference is within the predetermined value, the quality determination unit 44 determines that the terminal pressure bonding is good (step S4), and if the difference is greater than the predetermined value, the quality determination unit 44 determines that the terminal pressure bonding is bad (step S5). The above is a method of inspecting the terminal crimping.
As described above, the reference waveform is used in the inspection of the terminal crimping. However, even in the same terminal crimping device 1, the pressure waveform of the non-defective product is slightly different due to a change or deterioration in the installation environment. Therefore, the temporarily set reference waveform may become inappropriate thereafter. Therefore, it is preferable that the reference waveform be updated as appropriate. The terminal pressure contact inspection apparatus 50 of the present embodiment is configured to be able to update the reference waveform WT. Next, a method of updating the reference waveform will be described.
Fig. 7 is a flowchart of an update method of the reference waveform. First, in step S11, the terminal crimping device 1 performs terminal crimping of N electric wires, and the pressure waveform acquisition unit 42 acquires a pressure waveform for each of N times of terminal crimping. N is a predetermined natural number of 2 or more. The value of N is not particularly limited, and may be, for example, 5 to 30, or 10 to 30.
Next, in step S12, the first determination unit 46 determines whether or not the difference between the acquired pressure waveform for each time and the reference waveform stored in the storage unit 41 is within the first predetermined value for all the N times of terminal crimping. The determination as to whether or not the terminal pressure is within the first predetermined value may be performed immediately after each terminal pressure connection, or may be performed after the terminal pressure connection is completed N times.
If a failure occurs once in the N times of terminal crimping, it is considered that the reference waveform is not updated properly based on the N times of results. Therefore, if the determination result in step S12 is "no", the updating unit 48 prohibits the updating of the reference waveform, and the notification unit 49 notifies the user that the updating of the reference waveform is prohibited in step S16. In the present embodiment, the notification unit 49 notifies the user by displaying it on the display 26. However, the notification method is not limited at all, and the notification unit 49 may perform the notification by sound, light, vibration, or the like. If the determination result at step S12 is yes, the process proceeds to step S13.
In step S13, the average pressure waveform calculation unit 45 calculates the average pressure waveform of the N times of terminal crimping. Subsequently, the process proceeds to step S14, and the second determination unit 47 determines whether or not the difference between the average pressure waveform and the reference waveform stored in the storage unit 41 is within a second predetermined value. In the present embodiment, the first predetermined value used in step S12 is different from the second predetermined value used in step S14. The first predetermined value is, for example, 6 σ or 3 σ of a normal distribution of the non-defective product. The second predetermined value is, for example, 30%, 20%, or 10% of the reference waveform. However, the first predetermined value in step S12 and the second predetermined value in step S14 may be the same, but not limited thereto. One or both of the first predetermined value and the second predetermined value may be the same as or different from the predetermined value used for the quality check of the terminal crimping (see step S3). The first predetermined value and the second predetermined value are stored in the storage unit 41 in advance. If the determination result at step S14 is "no", the updating unit 48 prohibits the updating of the reference waveform, and the notification unit 49 notifies that the updating of the reference waveform is prohibited at step S16. If the determination result at step S14 is yes, the process proceeds to step S15.
In step S15, the reference waveform is updated by the updating unit 48. Here, the updating unit 48 stores the average pressure waveform of the N times of terminal crimping in the storage unit 41 as an updated reference waveform. In other words, the update unit 48 registers the average pressure waveform of the N times of terminal crimping as the updated reference waveform again in the storage unit 41. Then, based on the updated reference waveform, the quality of the terminal crimping is checked (see fig. 5).
The above is an update method of the reference waveform. Further, step S11, step S12, step S13, step S14, step S15, and step S16 of the present embodiment correspond to the pressure waveform acquisition step, the first determination step, the average pressure waveform calculation step, the second determination step, the update step, and the notification step, respectively.
As described above, according to the present embodiment, the terminal pressure bonding is performed N times when the reference waveform is updated, and the update of the reference waveform is prohibited when the difference between the average pressure waveform and the reference waveform is larger than the second predetermined value (when the determination result at step S14 is "no"). Therefore, it is possible to prevent inappropriate updating of the reference waveform from being performed.
However, even if the difference between the average pressure waveform and the reference waveform is within the second predetermined value as a result, for example, if there is a deviation in each pressure waveform, there is a possibility that an inappropriate pressure waveform is included in the N pressure waveforms. Therefore, it is possible to perform the update of the reference waveform based on an inappropriate pressure waveform. However, in the present embodiment, even if the difference between the average pressure waveform and the reference waveform is within the second predetermined value, the update of the reference waveform is prohibited even if the difference between the pressure waveform and the reference waveform once exceeds the first predetermined value in N times (in the case where the determination result of step S12 is no). Therefore, even a user who lacks knowledge or experience can be prevented from performing an inappropriate update of the reference waveform.
When updating the reference waveform, how to set the updated reference waveform is not particularly limited, and in the present embodiment, the average pressure waveform used when determining whether to permit updating is used as the updated reference waveform. This makes it possible to easily set an appropriate waveform as the updated reference waveform.
According to the present embodiment, when the update of the reference waveform is prohibited, the notification is given to the user (step S16). Therefore, the user can quickly and accurately recognize that the update of the reference waveform has been prohibited, and can quickly and reliably perform the subsequent processing such as the re-execution of the update job.
While the embodiments of the present invention have been described above, the above embodiments are merely examples. Other various embodiments are possible without departing from the spirit of the present invention.
Regarding the updating of the reference waveform, step S13 and step S14 may be performed after step S11, and then step S12 may be performed. That is, the order of the first determination step and the second determination step is not particularly limited. The second determination step may be performed after the first determination step, or the first determination step may be performed after the second determination step.
Claims (6)
1. A terminal crimping inspection device that inspects whether or not terminal crimping is good using a pressure waveform that indicates a relationship between a degree of progress of terminal crimping by a terminal crimping device and a pressure generated in the terminal crimping device, the terminal crimping inspection device comprising:
a storage unit that stores a reference waveform of the pressure waveform;
a pressure waveform acquisition unit that acquires a pressure waveform for each of N times when terminal crimping is performed, wherein N is a natural number of 2 or more;
a first determination unit that determines whether or not a difference between the acquired pressure waveform and the reference waveform for each of the N terminal crimping times is within a first predetermined value;
an average pressure waveform calculation unit that calculates an average pressure waveform of the terminal crimping N times;
a second determination unit that determines whether or not a difference between the average pressure waveform and the reference waveform is within a second predetermined value; and
and an updating unit that allows updating of the reference waveform when both a determination is made that a difference between the acquired pressure waveform and the reference waveform is within the first predetermined value for all N times of terminal crimping and a determination is made that a difference between the average pressure waveform and the reference waveform is within the second predetermined value.
2. A terminal crimping inspection device according to claim 1,
the updating unit is configured to store the average pressure waveform in the storage unit as an updated reference waveform when it is determined that the difference between the acquired pressure waveform and the reference waveform is within the first predetermined value in all the N terminal crimping times and it is determined that the difference between the average pressure waveform and the reference waveform is within the second predetermined value.
3. A terminal crimping inspection device according to claim 1,
the device is provided with a notification unit that notifies when updating of the reference waveform is prohibited.
4. A method of updating a reference waveform of a terminal crimping inspection, which is a method of updating the reference waveform in a terminal crimping inspection of inspecting whether a terminal crimping is good or bad based on a difference between a pressure waveform representing a relationship between a degree of progress of terminal crimping by a terminal crimping device and a pressure generated in the terminal crimping device, and the reference waveform, the method comprising:
a pressure waveform acquisition step of performing terminal crimping N times to acquire a pressure waveform of each time, wherein N is a natural number of 2 or more;
a first determination step of determining whether or not a difference between the acquired pressure waveform and the reference waveform for each of the N terminal crimping times is within a first predetermined value;
an average pressure waveform calculation step of calculating an average pressure waveform of the terminal crimping for N times;
a second determination step of determining whether or not a difference between the average pressure waveform and the reference waveform is within a second predetermined value; and
and an updating step of allowing the reference waveform to be updated when both the difference between the acquired pressure waveform and the reference waveform is determined to be within the first predetermined value in all the N terminal crimping times and the difference between the average pressure waveform and the reference waveform is determined to be within the second predetermined value.
5. The method of updating a reference waveform for terminal crimping inspection according to claim 4,
in the updating step, when it is determined that the difference between the acquired pressure waveform and the reference waveform is within the first predetermined value in all the N times of terminal crimping and it is determined that the difference between the average pressure waveform and the reference waveform is within the second predetermined value, the average pressure waveform is set as the updated reference waveform.
6. The method of updating a reference waveform for terminal crimping inspection according to claim 4,
the method includes a notification step of notifying when the update of the reference waveform is prohibited.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020041680A JP7343424B2 (en) | 2020-03-11 | 2020-03-11 | Terminal crimping inspection device and method for updating standard waveforms for terminal crimping inspection |
| JP2020-041680 | 2020-03-11 |
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|---|---|
| CN113391241A true CN113391241A (en) | 2021-09-14 |
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| CN202110256734.6A Pending CN113391241A (en) | 2020-03-11 | 2021-03-09 | Terminal crimping inspection device and method for updating reference waveform of terminal crimping inspection |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0299834A (en) * | 1988-10-07 | 1990-04-11 | Lion Corp | Detection of defective article in production line |
| JPH08160096A (en) * | 1994-12-02 | 1996-06-21 | Sumitomo Wiring Syst Ltd | Device for discriminating normal/defective press-contact state of crimp type terminal |
| US5697146A (en) * | 1994-12-28 | 1997-12-16 | Yazaki Corporation | Apparatus for crimping terminal to electrical wire |
| JP2001035628A (en) | 1999-07-23 | 2001-02-09 | Yazaki Corp | Method and device for judging terminal crimping condition |
| JP2005190604A (en) | 2003-12-26 | 2005-07-14 | Toshiba Corp | Semiconductor defect analyzing device and defect mode classifying method using the same |
| JP4444240B2 (en) | 2006-06-15 | 2010-03-31 | アンリツ産機システム株式会社 | X-ray foreign object detection device |
| JP5587400B2 (en) | 2009-04-09 | 2014-09-10 | シュロニガー ホールディング アーゲー | Crimping process monitoring method, crimping press and computer program product |
| JP2013140041A (en) | 2011-12-28 | 2013-07-18 | Keyence Corp | Visual inspection device, visual inspection method and computer program |
| JP6946908B2 (en) | 2017-09-29 | 2021-10-13 | オムロン株式会社 | Status determination unit, detection device, status determination method, and status determination program |
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