JP2001176635A - Testing method and testing device for inserted terminal in automatic terminal insertor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a terminal from being assembled or inserted without deciding it good or bad wherein pressure contact errors occurred such as a pressure contact fault, a mismatch of terminal or a mismatch of wire at the conductor pressure contact part of the wire with the terminal, or enable to early detect the failure product that has been difficult to be checked from the appearance. SOLUTION: The measurement is made of sizes W, H of a conductor pressure contact part 16 that is gripped by a terminal chuck 12 before inserting the terminal 8 into a terminal housing room 101, and the decision is made whether these measurement values W, H are within the range of allowance, and the inspection is made of the re-tightening strength of the conductor pressure contact part 16, and the device is constituted so as to stop the insertion action of the terminal 8 when they are beyond the extent of the allowance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for inspecting an inserted terminal in an automatic terminal insertion machine for in-line inspecting the crimping strength of a crimp terminal when an electric wire with a terminal is automatically inserted into a connector housing. is there.

[0002]

2. Description of the Related Art Generally, when an automatic terminal insertion machine chucks an electric wire with a terminal by its terminal insertion head and inserts it into a terminal receiving chamber of a mating connector housing, insertion mistakes and chuck mistakes are avoided and production costs are reduced. It is being done. For example, the conventional automatic terminal insertion machine 1 shown in FIGS. 11 to 16 mainly includes a clamp rod 3 provided on a mounting table 2, a terminal block 4 having an L-shaped cross section, and a vertical wall 5 having the mounting table 2. The terminal insertion head 6 is provided so as to be movable in the longitudinal direction. The electric wire with terminal 7 (hereinafter also referred to as “electric wire” in some cases) is pressed into a not-shown groove of the clamp rod 3 by inserting an electric wire portion 9 near a metal crimp terminal 8 (hereinafter referred to as “terminal”) attached to both ends thereof. The mounting table 2 with the terminals 8 placed on the terminal block 4
Is set to The electric wires 7 grasped by the terminal chuck 12 and the electric wire chuck 13 provided on the terminal insertion head 6 and lifted from the clamp rod 3 are grasped one by one, and the terminal 8 is positioned and placed on the mounting table 2. When all the terminals 8 are inserted into all of the connectors 10 arranged on the mounting table after being inserted into a predetermined terminal accommodating chamber 101 of the connector housing 10 (hereinafter, also referred to as a “connector”). A sub-wire harness, which is an intermediate product one step before the harness, is formed.

The process of manufacturing the sub-wire harness with the terminal insertion head 6 will be described. First, the electric wire 7 having the electric wire portion 9 driven into the clamp rod 3 by a mechanical or artificial method is connected to the terminal 8 by a terminal block. Place on 4. Next, the terminal insertion head 6 descends from above so as to approach a predetermined gripping position. The terminal insertion head 6 has a terminal holder 11, a terminal chuck 12 and an electric wire chuck 13 incorporated therein so as to move up and down, left and right, and back and forth. The vertical position of the head of the terminal 8 is corrected by sandwiching the terminal 8 with the block 4. The pair of openable and closable terminal chucks 12 and the wire chucks 13 that have been lowered after the correction is completed hold the terminals 8 and the wire portions 9 from the lateral (side) direction (chuck), and keep the connector at a predetermined interval as it is. The wire 7 rises to the height of 10 and moves the wire 7 upward. Further, the terminal 8 is advanced toward the connector 10 while maintaining that state, and positioning is performed so that the head of the front end of the terminal 8 enters the terminal receiving chamber 101 of the connector 10. Then, the terminal temporary presser 11 rises so as not to hinder the insertion, and the terminal chuck 12 also moves upward by separating the terminal 8. In this way, only the wire chuck 13 advances while holding the wire 7, and the terminal 8 is completely inserted into the predetermined terminal accommodating chamber 101 of the connector 10. When the insertion is completed, the wire chuck 13 is also released and rises, and the terminal chuck 12 and the wire chuck 13 return to their original positions. Then, a new terminal insertion operation into the adjacent terminal receiving chamber is started. Thus, the terminal insertion operation is repeatedly performed, and one sub-wire harness is formed by inserting all the terminals into the terminal accommodating chambers of all the terminals.

[0004]

However, in the conventional apparatus, before the terminal 8 is inserted into the connector 10, the terminal chuck 12 and the terminal temporary holding member 11 only position the electric connection portion 15 of the terminal. In addition, the crimping strength of the conductor crimping portion (hereinafter referred to as “forefoot”) 16 of the crimp terminal 8 is not inspected in advance. For this reason, if a terminal having insufficient crimping strength caused by poor crimping, wrong combination of terminals, or wrong combination of wires is used as it is as a wire harness, a force for separating the connector 10 and the wire portion 9 from each other acts. In such a case, there is a possibility that the wire portion 9 may fall out of the forefoot 16 of the terminal 8 in a portion where the crimping strength is insufficient, resulting in poor connection or disconnection.
In addition, it is difficult to detect a crimp-defective terminal only by visual appearance, and there is a limit to early detection of a defective product, for example, before the terminal is mounted on a vehicle.

The present invention has been devised in view of the above problems, and when inserting an electric wire with a terminal into a connector housing, a so-called in-line inspection of the state of the crimp terminal is performed to guarantee the product and improve the quality of the product. The purpose is to let them.

[0006]

According to a first aspect of the present invention, there is provided a method for inspecting an insertion terminal in an automatic terminal insertion machine, comprising: a terminal provided on a terminal insertion head of the automatic terminal insertion machine. In the terminal insertion method in which the terminal of the electric wire with the terminal gripped by the chuck and the electric wire chuck is inserted into a predetermined terminal receiving chamber of the connector housing, before the terminal is inserted into the terminal receiving chamber,
The dimensions of the conductor crimping portion of the terminal gripped by the terminal chuck are measured, and whether the measured size is within a range of a preset allowable value is compared, and the crimping strength of the conductor crimping portion is determined. The crimping state of the terminal is inspected, and the insertion of the terminal is stopped only when the measured dimension is out of the range of the allowable value.

According to a second aspect of the present invention, there is provided the method for inspecting an inserted terminal in the automatic terminal inserting machine according to the first aspect of the present invention, wherein the terminal chuck sandwiches the upper and lower sides and the left and right sides of the conductor crimping section. The width dimension and the height dimension of the portion are measured, and, when the allowable value is a reference value, the width dimension and the height dimension of the conductor crimping portion corresponding to the ability to maintain normal crimping strength, The reference value is set to have a certain range.

According to a third aspect of the present invention, there is provided an automatic terminal insertion apparatus for inspecting an insertion terminal, wherein the terminal chuck and the wire chuck provided on the insertion head chuck the terminal and the wire portion of the terminal-equipped wire, and provide a connector housing. An automatic terminal insertion machine configured to insert the terminal into a predetermined terminal accommodating chamber, wherein the terminal chuck for gripping the conductor crimping portion measures a dimension of the conductor crimping portion, based on the displacement measuring device. The insertion determination processing means for determining whether the measured value is within a preset allowable value range, and only when the measured value is not within the allowable value range by the insertion determination processing means, Control means for stopping the automatic terminal insertion machine before insertion is provided.

According to a fourth aspect of the present invention, in the automatic terminal insertion machine according to the third aspect of the present invention, the terminal chuck measures a closed position by grasping right and left sides of the conductor crimping portion of the terminal. A pair of terminal chuck claws for measuring the width dimension by being moved up and down with respect to the terminal chuck claws, moving downward and measuring the position where they abut on the conductor crimping portion And a terminal holder for measuring dimensions.

According to the first aspect of the present invention, before the terminal is inserted into the terminal accommodating chamber, the dimension of the conductor crimping portion of the terminal gripped by the terminal chuck is measured, and the measured dimension is set in advance. Inspect the crimping condition of the crimping strength of the conductor crimping part by comparing whether it is within the allowable value range, and stop the terminal insertion only when the measured dimension is out of the allowable value range. I do.

According to the second aspect of the present invention, the upper and lower sides and the left and right sides of the conductor crimping portion are sandwiched by the terminal chuck, whereby the width and height dimensions of the conductor crimping portion are measured, and the crimping is performed normally. The reference value is compared with a reference value that can maintain the strength, and the reference value is set so as to have a certain range.

According to the third aspect of the present invention, the displacement measuring means for measuring the dimension of the conductor crimping portion by the terminal chuck for gripping the conductor crimping portion, and the measured value based on the displacement measuring means is:
Insertion determination processing means for determining whether or not it is within a range of a preset allowable value, and only when the measured numerical value is not within the range of the allowable value by the insertion determination processing means, before inserting the terminal. By the control means for stopping the automatic terminal insertion machine, it is possible to prevent the automatic terminal insertion machine from being inserted into the terminal accommodating chamber of the connector housing with a crimping error occurring.

According to the fourth aspect of the present invention, the terminal chuck comprises a pair of terminal chuck claws for measuring the width by measuring the closed position by grasping the right and left sides of the conductor crimping portion of the terminal, and the terminal chuck. It is formed so as to move up and down with respect to the claw, and has a terminal retainer that measures the height dimension by measuring the position that moves downward and abuts the conductor crimping part, so that the crimping state of crimping strength is Inspect accurately.

[0014]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described in detail with reference to FIG. It is to be noted that substantially the same portions or members as those of the above-described conventional device are denoted by the same reference numerals as those used above, and description thereof is omitted.

The automatic terminal inserting machine 1 used in the present embodiment shown in FIG. 1 will first be described on the points that are significantly different from the automatic terminal inserting machine in the above-mentioned conventional apparatus. The first difference is that an electric wire guide member 20 having an angle whose cross section is L-shaped is provided as shown in FIG. In addition, the wire chuck 13 including the pair of wire chuck claws 131 is provided with an electric wire holder 22 as shown in FIG.

As shown in FIG. 2, the wire guide member 20 has a plurality of grooves 21 arranged in the longitudinal direction thereof, that is, in the horizontal direction when the wire guide member 20 is set on the mounting table 2, and the wire portion 9 is fitted therein. By doing so, right and left deflection of the electric wire portion 9 in the horizontal plane is regulated. As a result, before the electric wire portion 9 is chucked, the electric wire with terminal 7 in the portion supported by the terminal block 4, the electric wire guide member 20, and the clamp rod 3.
Are supported so as to be substantially horizontal and substantially linear.

On the other hand, when the wire chuck 13 moves downward, the wire holder 22 first pushes the wire portion 9 supported by the clamp rod 3 from above, and then presses the wire portion 9 into the groove bottom 23 of the rod 3. Let me sit down. Thereafter, the claw 131 of the electric wire chuck 13 clamps the electric wire portion by the servo motor mechanism. By doing so, before the terminal 8 and the electric wire portion 9 are chucked, the posture of the electric wire with terminal 7 is corrected so as to be substantially straight even in the vertical direction. As a result, the terminal block 4, the electric wire 7 with the terminal supported by the electric wire guide member 20, and the clamp rod 3 maintain the standby state before the chuck stably in a substantially straight state, and the terminal 8 is also in the terminal block. 4 is not inclined at all, and a substantially horizontal state is stably maintained. In this horizontal state, the terminal 8 and the wire portion 9 are chucked, and the terminal 8 is
1 is inserted into the storage chamber 10
1 is set so as to substantially coincide with the direction in which the terminal 8 enters.

The structure of the terminal insertion head 6 will be described. The terminal insertion head 6 can move in the left and right (lateral) directions with respect to the vertical wall 5 via the slider 15 and can also move in the vertical direction with respect to the support guide 36. Although not shown, the insertion head 5 is provided with various air cylinders for moving the terminal chuck 12 and the electric wire chuck 13 back and forth, left and right, and up and down. The control for driving or moving necessary for the above-mentioned left, right, up and down directions and chuck operation in these cases can be applied to many types by pre-teaching position data according to the type, product number, size, etc. of terminals and electric wires. In this case, the drive control in the three-axis direction is performed by the servo motor mechanism.

Next, an inspection apparatus for inserting a terminal will be described. As shown in FIG.
Is composed of a pair of terminal chuck claws 121, and each of the claws 121
Are formed with slits 122 at opposing positions. At the lower end of one of the claws 121, a receiving portion 123 bent horizontally is provided. The terminal chuck claws 121 can move left and right in the direction of arrow D for chuck operation. Also each slit 1
An inverted T-shaped terminal retainer 124 can be slid up and down (in the direction of arrow E) with respect to 22 and is inserted into the slit 122 so as not to hinder the lateral movement. The forefoot 16, which is a conductor crimping portion of the terminal 8, is gripped by the approach of the two terminal chuck claws 121. Next, terminal retainer 12
The terminal 4 is guided by the slit 122 and moves downward, and abuts on the top 81 of the forefoot 16, so that the terminal 8 is chucked by the terminal chuck 12 (FIG. 8). At this time, the width W of the forefoot 16 can be measured by the side portion 82 being sandwiched between the pair of terminal chuck claws 121.
Further, by being sandwiched between the receiving portion 123 and the terminal retainer 124, the height H of the terminal 8 of the forefoot 16 can be measured.

Next, a displacement measuring means for enabling these measurements will be described with reference to a conceptual diagram shown in FIG. 25
Is an air cylinder provided on each terminal chuck claw 121, and can move each claw 121 in a direction away from each other in synchronization with left and right. 26 is an air cylinder for moving the terminal holder 124 up and down. Reference numeral 27 denotes a lateral displacement detecting member including a differential transformer capable of measuring the amount of displacement of the pair of terminal chuck claws 121. Reference numeral 28 denotes a height displacement detecting member constituted by a differential transformer capable of measuring the amount of displacement of the terminal retainer 124. Each of the displacement detection members 27 and 28 sets the position of the zero point when the terminal chuck claw 121 and the terminal presser 124 are both at the standby position where the terminal 8 is not chucked, and from this position to the position where the terminal 8 is chucked and stopped. The amount of movement of the terminal holder 26 can be detected by the movement of the iron cores 31 and 23 in the coils 29 and 30.

Next, the insertion determination processing means for determining whether or not a terminal can be inserted based on the data detected by the displacement measuring means is performed as follows. First, each displacement amount detected by each displacement detection member 27, 28 when a normal terminal is chucked is taken as a reference value. The width of the measured value within a certain range with respect to this reference value is regarded as an allowable value, and when it is determined that the measured value is within the allowable value range, caulking at the conductor crimping portion of the terminal 8, that is, the forefoot 16 Although the terminal insertion process is allowed to satisfy the strength, when the allowable value is out of the range, the crimping strength is determined to be insufficient, and the operation is immediately stopped to stop the insertion process. Such an allowable value is input as data to the control means constituting the automatic terminal insertion machine 1 in advance. Note that this allowable value is input for each terminal part number. In this way, immediately before the terminal inserting step, the control means determines whether or not each measurement result is within the range of the allowable value. Accordingly, the result of the comparison is substantially the same as the measurement of the width W and the height H of the terminal 8 immediately before the insertion.

Next, a description will be given of a step of inserting the terminal-attached electric wire 7 into the chuck by the automatic terminal insertion machine, assuming that the terminal 8 has a predetermined crimping strength. In addition, a description of an inspection device, a measuring unit, and an insertion determination processing unit for inserting a terminal in the terminal chuck 12 will be described later. In the pre-process, the terminal block 4, the electric wire guide member 20,
Are prepared in support (FIG. 3). At this time, the terminal chuck 12 and the electric wire chuck 13 provided on the terminal insertion head 6 side are above the electric wire with terminal 7 prepared by setting. Next, the entire terminal insertion head 6 descends, and FIG.
State. At this time, when the electric wire portion 9 is raised in the groove 23 of the clamp rod 3, the electric wire press 22
As a result, the portion 9 is pressed so as to abut the groove bottom. Further, the warpage in the horizontal direction and the variation of the curved deformation in the horizontal plane of the wire portion 9 inserted into the groove 21 of the wire guide member 20 are corrected.

Next, after the terminal-attached electric wire 7 is straightened, the crimped terminal crimping portion 81 is brought into contact with the terminal chuck 12.
(12 'in FIG. 1), and the electric wire portion 9 is chucked by a pair of claws 131 of the electric wire chuck 13 (13' in FIG. 1). By the upward movement of the terminal insertion head 6, the chucked electric wire 7 moves to a predetermined terminal accommodating chamber 101 where the connector 10 is to be inserted as shown in FIG. 5B. The terminal 8 advances in the direction of arrow C while the chucks 12 and 13 are kept at a certain interval, and the front end of the terminal 8 is inserted near the entrance of the terminal accommodating chamber 101 to perform positioning. From this state, only the terminal chuck 12 is once pulled up, and the wire chuck 13 further advances toward the connector 10 (C direction). Thus, the terminal 8 is inserted into the terminal receiving chamber 101, and the insertion is completed. After that, the wire chuck 13 is also pulled up,
The terminal insertion head 6 and each of the chucks 12 and 13 return to the initial positions, and the process for inserting the next terminal is started.

Next, a description will be given of an insertion terminal inspection method for checking in advance whether or not the terminal by the terminal chuck 12 in the present embodiment satisfies the crimping strength. FIG. 10 is a flowchart for judging whether or not the terminal can be inserted. First, both side portions 82 of the terminal 8 are held by the pair of terminal chuck claws 121 by the operation of the air cylinder 25 as shown in FIGS. . Accordingly, in step 1 (hereinafter, “step” is referred to as “S”), the stroke from the reference position is measured as the moving displacement amount by the displacement measuring member 27 which is one element of the displacement measuring means (S in FIG. 10).
1). The movement amount measured in S2 is compared with the range of the allowable value (S2). In S3, it is determined whether the measured value is within the range of the allowable value. If it is determined that the value does not exceed the allowable value, the lateral width W of the terminal is normal. Next, proceeding to S4, the terminal press 124 moves downward as indicated by arrow D by the operation of the air cylinder 26 (FIG. 6). The terminal abuts on the top 81 of the forefoot 16 and stops as shown in FIG. At this time, the stroke amount, that is, the movement amount of the terminal holder 124 is measured (S4). In S5, it is compared whether or not the measured movement amount is within the allowable range of the terminal height. Then, in S6, based on the result of the comparison, it is determined whether or not the terminal retainer 124 is within the allowable value range. That is, when it is determined that the height H of the forefoot 16 of the terminal is normal, it is determined that the crimping strength is within a certain standard range. That is, the terminal 8 is inserted into the terminal accommodating chamber 101 of the connector 10 while being chucked by the terminal chuck claws 121 and the terminal retainers 124 (S
7).

However, if it is determined that the terminal width dimension W is out of the allowable range in S3 or the terminal height dimension H is out of the allowable range in S6, an NG display is immediately made (S8) and the automatic display is performed. The operation of the terminal insertion machine 1 is stopped (S9). Then, the operator checks the state of the NG terminal, adjusts the terminal to a normal state, sets the terminal to a predetermined terminal, and performs a re-insertion inspection (S10).

Since the present embodiment has the above configuration, before the terminal 8 is inserted into the terminal accommodating chamber 101, the forefoot 16 which is a crimp terminal portion of the terminal 8 is
By measuring the displacement between the closed position of the terminal chuck claw 121 and the lowered end position of the terminal press by sandwiching the terminal chuck 124 and the terminal press 124, it is determined whether or not the width W and the height H of the terminal are at predetermined dimensions. To inspect. When it is determined that any of the dimensions is not the predetermined dimension, it is determined that the crimping strength of the forefoot 16 as the conductor crimping portion is insufficient, and the operation of the automatic terminal insertion machine 1 is immediately stopped, and Can be checked, adjusted to a normal state, fine-tuned, and the insertion operation by the automatic terminal insertion machine can be performed again. Therefore, before the terminal is inserted, the conductor crimping portion is inspected by a measurement to determine whether the crimping portion has a predetermined crimping strength. Therefore, it is possible to prevent a terminal having insufficient crimping strength from being inserted into the connector, and to crimp the terminal. This makes it possible to determine the status of the process. Furthermore, the terminal chuck 12 and the terminal holder 2
Since the status of the automatic terminal insertion machine 1 can be monitored, the automatic terminal insertion machine 1 can perform a self-diagnosis, and the occurrence of troubles occurring during the automatic terminal insertion process can be suppressed well.

Although the present embodiment has been described in detail, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, the present embodiment is not limited to this embodiment. Included in the invention. For example, the width displacement detecting member 2
7, and the height displacement detecting member 28 are the differential transformer 2
Although the sensor unit has a built-in sensor unit 9 and 30, it may be configured to measure the rotation angle and the rotation amount using a stepping motor. And so on.

[0028]

As described above, according to the method for inspecting an insertion terminal in the automatic terminal insertion machine according to the first aspect of the present invention, before the terminal is inserted into the terminal receiving chamber,
The dimensions of the conductor crimping part of the terminal gripped by the terminal chuck are measured, and whether the measured dimensions are within a range of a preset allowable value is compared, and the crimping strength of the conductor crimping part is determined. The crimping state is inspected, and the insertion of the terminal is stopped only when the measured dimension is out of the range of the allowable value. Therefore, the state of the conductor crimping section is inspected in-line, and the crimping section is crimped. It is possible to prevent a terminal having a strength lower than a predetermined strength from being inserted, and to secure an assurance of a product.

According to the present invention as set forth in claim 2, the terminal chuck measures the width and height of the conductor crimping portion by sandwiching the top and bottom and left and right of the conductor crimping portion,
In addition, the allowable value is set so as to have a certain range with respect to the reference value when the width and height dimensions of the conductor crimping portion corresponding to maintaining the normal crimping strength are set as the reference values. Therefore, the crimping strength can be measured more accurately, and as a result, the status of the terminal chuck and the terminal presser can be monitored, so that the state of the automatic terminal insertion machine can be self-diagnosed, and as a result, the occurrence of defects can be suppressed. To play.

According to the third aspect of the present invention, there is provided an automatic terminal insertion apparatus for inspecting an insertion terminal, wherein the terminal chuck for gripping the conductor crimping portion measures the size of the conductor crimping portion. An insertion determination processing unit that determines whether a measurement value based on the displacement measurement unit is within a preset allowable value range, and the measured value is not within the allowable value range by the insertion determination processing unit. Only when, since the configuration is provided with a control means to stop the automatic terminal insertion machine before the insertion of the terminal, it is possible to accurately determine the state of the crimping strength of the conductor crimping portion,
If it is determined that the terminal has insufficient strength, the automatic terminal insertion machine is forcibly stopped, and the effect of increasing the product guarantee of the sub-wire harness is achieved.

According to the fourth aspect of the present invention, the terminal chuck comprises a pair of terminal chuck claws for measuring the lateral width by measuring the closed position by grasping the left and right sides of the conductor crimping portion of the terminal; The terminal chuck is formed so as to move up and down with respect to the claw, and has a terminal retainer for measuring a height dimension by moving downward and measuring a position where the conductor comes into contact with the crimping portion. This can reliably prevent the terminal from being inserted, thereby improving the product warranty.

[Brief description of the drawings]

FIG. 1 is a side view showing an entire automatic terminal insertion machine used in an insertion terminal inspection method according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of the electric wire guide member of FIG.

FIG. 3 is an operation explanatory view showing a state before an electric wire with a terminal is chucked.

FIG. 4 is an operation explanatory view showing a state in which the terminal-attached electric wire is chucked.

5A is an enlarged sectional view of a main part taken along line BB in FIG. 4, and FIG. 5B is an operation explanatory view showing a correlation among a connector housing, a terminal chuck, and an electric wire chuck.

FIG. 6 is a conceptual diagram showing a displacement measuring means incorporated in the terminal chuck.

FIG. 7 is an external assembly diagram showing a configuration of a mutual relationship between a terminal chuck claw and a terminal press.

FIG. 8 is an operation explanatory view showing a state in which a forefoot (conductor crimping portion) is sandwiched between a terminal chuck claw and a terminal retainer.

FIG. 9 is a cross-sectional view showing a relationship between a lateral width dimension and a height dimension of a front foot of the terminal.

FIG. 10 is a flowchart showing a terminal insertion determination process for determining whether or not a terminal can be inserted;

FIG. 11 is an external perspective view of a conventional terminal insertion machine.

12 is a schematic plan view showing a state where the electric wire with terminal of FIG. 11 is set on a terminal block and a clamp rod.

FIG. 13 is an operation explanatory view showing a state where the electric wire with terminal of FIG. 12 is operated by a chuck;

FIG. 14 is a sectional view taken along line AA of FIG.

FIG. 15 is an operation explanatory view showing a state of the terminal-attached electric wire before being chucked.

FIG. 16 is an operation explanatory view showing a state immediately before an electric wire is inserted into the connector housing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic terminal insertion machine 6 Terminal insertion head 7 Terminal wire 8 Terminal 9 Wire part 10 Connector (connector housing) 12 Terminal chuck 13 Wire chuck 16 Forefoot (conductor crimping part) 27 Width displacement detecting member 28 Height displacement detecting member 121 Terminal Chuck claw 124 Terminal press W Width dimension H Height dimension S1 to S10 Insertion determination processing means

Claims (4)

[Claims] 1. A terminal insertion device for inserting a terminal of an electric wire with a terminal gripped by a terminal chuck and an electric wire chuck provided on a terminal insertion head of an automatic terminal insertion machine into a predetermined terminal accommodating chamber of a connector housing. In the method, before the terminal is inserted into the terminal accommodating chamber, a dimension of a conductor crimping portion of the terminal gripped by the terminal chuck is measured, and the measured dimension is set to a range of a preset allowable value. By comparing whether there is, inspect the crimping state of the crimping strength of the conductor crimping portion, only when the measured dimensions are outside the range of the allowable value, to stop the insertion of the terminal. A method for inspecting an insertion terminal in an automatic terminal insertion machine, wherein the method is configured. 2. The terminal chuck measures the width and height of the conductor crimping portion by sandwiching the top and bottom and left and right of the conductor crimping portion, and the allowable value is a normal value. When a width and a height of the conductor crimping portion, which are equivalent to maintaining the tightening strength, are set as a reference value, the conductor crimping portion is set to have a certain range with respect to the reference value. 2. A method for inspecting an insertion terminal in the automatic terminal insertion machine according to 1. 3. An automatic terminal insertion wherein a terminal and an electric wire portion of an electric wire with a terminal are chucked by a terminal chuck and an electric wire chuck provided on an insertion head, and the terminal is inserted into a predetermined terminal accommodating chamber of a connector housing. In the machine, displacement measuring means for measuring the dimensions of the conductor crimping section by the terminal chuck gripping the conductor crimping section, whether the measured numerical value based on the displacement measuring means is within a range of a preset allowable value. Insertion determination processing means for determining, and control means for stopping the automatic terminal insertion machine before inserting the terminal only when the measured numerical value is not in the range of the allowable value by the insertion determination processing means. Characteristic inspection equipment for insertion terminals in automatic terminal insertion machines. 4. A terminal chuck comprising: a pair of terminal chuck claws for measuring a lateral width by measuring a closed position by grasping right and left sides of a conductor crimping portion of the terminal; 4. The automatic terminal insertion machine according to claim 3, further comprising: a terminal holder that is formed so as to move, moves downward, and measures a height dimension by measuring a position in contact with the conductor crimping portion. Inspection terminal inspection equipment.