JP3635627B2 - Inspection method and inspection apparatus for insertion terminal in automatic terminal insertion machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insertion terminal inspection method and an inspection apparatus therefor in an automatic terminal insertion machine for in-line inspection of crimping strength of a crimp terminal when an electric wire with terminal is automatically inserted into a connector housing.
[0002]
[Prior art]
In general, when an automatic terminal insertion machine chucks a terminal-attached electric wire with its terminal insertion head and inserts it into the terminal housing chamber of the mating connector housing, it avoids insertion errors and chucking errors and reduces production costs. It has been broken.
For example, the conventional automatic terminal insertion machine 1 shown in FIGS. 11 to 16 includes a clamp rod 3 provided on the mounting table 2, a terminal block 4 having an L-shaped cross section, and a vertical wall 5. 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”) is press-fitted into a groove (not shown) of the clamp rod 3 with the electric wire portion 9 in the vicinity of the metal crimp terminal 8 (hereinafter referred to as “terminal”) attached to both ends. As it is, the terminal 8 is placed on the terminal block 4 and set on the mounting table 2. Each of the wires 7 that are gripped by the terminal chuck 12 and the wire chuck 13 provided on the terminal insertion head 6 and lifted from the clamp rod 3 is gripped one by one, and the terminal 8 is positioned and placed on the mounting table 2. When the terminal housing 10 (hereinafter also referred to as “connector”) is inserted into a predetermined terminal accommodating chamber 101 and all the terminals 8 have been inserted into all the connectors 10 arranged on the mounting table, a so-called wire is obtained. A sub-wire harness that is an intermediate product one step before the harness is formed.
[0003]
The process by which the sub-wire harness is manufactured by the terminal insertion head 6 will be described. First, the electric wire 7 in which the electric wire portion 9 is driven into the clamp rod 3 by a mechanical or artificial method is mounted on the terminal block 4. Put. Next, the terminal insertion head 6 descends from above so as to approach the predetermined gripping position. In this terminal insertion head 6, a terminal temporary holder 11, a terminal chuck 12 and an electric wire chuck 13 are incorporated so as to move up and down, left and right, and in the front and rear direction. By sandwiching it between the block 4, the vertical position of the head of the terminal 8 is corrected. A pair of openable and closable terminal chucks 12 and electric wire chucks 13 that have descended after the correction is completed pinch (chuck) the terminals 8 and the electric wire portions 9 from the lateral (side surface) direction, and maintain the predetermined distance as they are. Ascend to a height of 10 and move the wire 7 upward. Further, the head is moved forward toward the connector 10 while maintaining this state, and positioning is performed so that the head of the front end of the terminal 8 enters the terminal accommodating chamber 101 of the connector 10. Then, the terminal temporary presser 11 is raised so as not to obstruct the insertion, and the terminal chuck 12 moves away from the terminal 8 and moves upward. In this way, only the electric wire chuck 13 moves forward while the electric wire 7 is chucked, and the terminal 8 is completely inserted into the predetermined terminal accommodating chamber 101 of the connector 10. When the insertion is completed, the electric wire chuck 13 is also released and raised, and the terminal chuck 12 and the electric wire chuck 13 return to their original positions. Next, a new terminal insertion operation into the adjacent terminal storage chamber is started. In this way, 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]
[Problems to be solved by the invention]
However, in the conventional apparatus, before the terminal 8 is inserted into the connector 10, the terminal electrical connection portion 15 is only positioned by the terminal chuck 12 and the terminal temporary holder 11, and the conductor of the crimp terminal 8 is not at all. The crimping strength of the crimping part (hereinafter referred to as “front foot”) 16 is not inspected in advance. For this reason, if a terminal having insufficient crimping strength caused by a crimping failure, a wrong combination of terminals, or a wrong combination of electric wires is used as it is as a wire harness, a force that separates them from each other between the connector 10 and the electric wire portion 9 acts. In such a case, the electric wire portion 9 may come out of the front foot 16 of the terminal 8 in a portion where the caulking strength is insufficient, which may cause a connection failure or disconnection. In addition, it is difficult to find defective crimp terminals only by visual appearance. For example, there is a limit to early detection of defective products before being mounted on a vehicle.
[0005]
The present invention has been devised in view of the above problems, and when inserting a terminal-attached electric wire into a connector housing, the state of the crimp terminal is so-called in-line inspection, guarantees the product, and improves the quality of the product. Objective.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an automatic terminal insertion machine inspection method for an insertion terminal comprising: a terminal chuck provided on a terminal insertion head of the automatic terminal insertion machine; and an electric wire chuck . In the terminal insertion method in which the terminal is inserted into a predetermined terminal receiving chamber of the connector housing, the terminal chuck is attached to a pair of left and right open / close type terminal chuck claws and the bottom of one terminal chuck claw. It is composed of a receiving part orthogonal to the terminal, and the terminal received by the receiving part can be pressed by a lifting type terminal presser, and a lateral displacement detecting member interlocked with the pair of terminal chuck claws, and a height interlocked with the terminal presser and a displacement detecting member is provided is, before inserting the said terminal into said terminal accommodating chamber, to measure the width dimension of the conductor crimping portion of the terminal grabbed by said terminal chuck lateral width displacement detecting member Together, the height of the conductor crimping portion is measured by the height-displacement detecting member, and the measured dimensions compared whether the range of preset tolerances, crimping of the conductor crimping portion Check the state, the measured dimensional stops insertion of the terminal when it is outside the range of the allowable value, when it is within the scope of the allowable value, the terminal chuck and the terminal retainer and the wire The terminal is inserted into the terminal accommodating chamber by a chuck .
[0007]
According to a second aspect of the present invention, there is provided an inspection apparatus for an insertion terminal in an automatic terminal insertion machine, wherein a terminal chuck and a wire chuck of a terminal-attached wire are chucked by a terminal chuck and a wire chuck provided in an insertion head. In the automatic terminal insertion machine in which the terminal is inserted into the terminal accommodating chamber, the terminal chuck is orthogonal to a pair of left and right open / close type terminal chuck claws for gripping the conductor crimping portion of the terminal and the bottom of one terminal chuck claw. And a lifting / lowering terminal presser capable of pressing the terminal received by the receiving unit, a lateral displacement detecting member interlocked with the pair of terminal chuck claws, and interlocking with the terminal presser A height displacement detecting member, and the width displacement detecting member measures the width dimension of the conductor crimping portion, and the height displacement detecting member measures the height dimension of the conductor crimping portion. When an insertion determination processing means for determining whether or not the measured numerical value based on the detection member is within a preset allowable value range is provided, and when the measured numerical 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 of the terminal, and when the terminal chuck is within the allowable range, the terminal chuck, the terminal presser, and the wire chuck It is characterized by being inserted into the terminal accommodating chamber.
[0010]
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. The crimping state of the crimping strength of the conductor crimping part is inspected by comparing whether or not it is within the range of values, and the terminal insertion is stopped only when the measured dimension is out of the allowable range.
[0011]
In addition , the conductor crimping portion is sandwiched between the upper and lower sides and the left and right sides by the terminal chuck, whereby the width and height dimensions of the conductor crimping portion are measured, and a reference value corresponding to maintaining normal crimping strength is obtained. In comparison, it is set so as to have a certain range with respect to the reference value, thereby preventing the insertion of a terminal having a crimping error in advance.
[0012]
According to the second aspect of the invention, the displacement measuring member that measures the dimensions of the conductor crimping portion by the terminal chuck gripping the conductor crimp portion, the measurement value that is based on displacement measurements member, the range of a preset tolerance Insertion determination processing means for determining whether or not there is, and control means for stopping the automatic terminal insertion machine before insertion of the terminal only when the measured numerical value is not within the allowable range by the insertion determination processing means Thus, it is possible to avoid the insertion into the terminal housing chamber of the connector housing while a crimping error has occurred.
[0013]
In addition , the terminal chuck is formed so as to move up and down with respect to the terminal chuck claw and a pair of terminal chuck claws that measure the lateral width by measuring the closed position by grasping the left and right sides of the conductor crimping portion of the terminal. In addition, since it has a terminal presser that measures the height dimension by measuring the position that moves downward and contacts the conductor crimping portion, the crimping state of the caulking strength is accurately inspected.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.
It should be noted that substantially the same parts or the same members as those of the conventional apparatus are denoted by the same reference numerals as those used above, and the description thereof is omitted.
[0015]
The automatic terminal insertion machine 1 used in this embodiment shown in FIG. 1 will first be described in terms of significant differences from the automatic terminal insertion machine in the conventional apparatus.
First, the difference is that a wire guide member 20 having an L-shaped cross section is provided as shown in FIG. Further, the electric wire chuck 13 including the pair of electric wire chuck claws 131 is provided with an electric wire presser 22 as shown in FIG.
[0016]
As shown in FIG. 2, the wire guide member 20 is formed with a number of grooves 21 arranged in the longitudinal direction, that is, in the left-right direction when being set on the mounting table 2, and the wire portion 9 is inserted therein. The left and right deflection of the electric wire portion 9 in the horizontal plane is restricted. Thereby, before the electric wire part 9 is chucked, the electric wire with terminal 7 in the part supported by the terminal block 4, the electric wire guide member 20, and the clamp rod 3 is supported so as to maintain a substantially horizontal state and a substantially straight line shape. The
[0017]
On the other hand, is a wire-pressing 22, which when the wire chuck 13 is moved downward, first pushing the electric wire portion 9 supported on the clamping rod 3 from the top and allowed to sit in the groove bottom portion 23 of the rod 3. Thereafter, the claw 131 of the electric wire chuck 13 holds the electric wire portion by the servo motor mechanism. By doing in this way, before the terminal 8 and the electric wire part 9 are chucked, the attitude | position of the electric wire 7 with a terminal is correct | amended so that it may become substantially linear form also in an up-down direction. As a result, the terminal block 4, the wire guide member 20, and the terminal-attached wire 7 supported by the clamp rod 3 are stably maintained in a standby state before chucking in a substantially straight state, and the terminal 8 is also a terminal block. any without tilting over the 4, and thus stably maintained substantially horizontal state. In this horizontal state, the terminal 8 and the wire portion 9 are chucked, and the insertion direction when the terminal 8 is inserted into the terminal accommodating chamber 101 of the connector 10 is the direction in which the terminal 8 enters the accommodating chamber 101. It is set so as to substantially match.
[0018]
Further, the structure of the terminal insertion head 6 will be described. The terminal insertion head 6 can move in the left / right (lateral) direction 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 6 is provided with various air cylinders that move the terminal chuck 12 and the wire chuck 13 back and forth, left and right, and up and down. Controls for driving and movement required for the left and right, up and down directions and chucking operation in these can be handled for a variety of products by pre-teaching position data according to terminal, wire type, product number, size, etc. In other words, the drive control in the three-axis direction is performed by the servo motor mechanism.
[0019]
Next, an inspection apparatus for inserting a terminal will be described.
As shown in FIG. 7, the terminal chuck 12 includes a pair of terminal chuck claws 121, and a slit 122 is formed at a position facing each claw 121. A receiving portion 123 that is bent horizontally is provided at the lower end of the claw 121 on one side. The terminal chuck claw 121 can move left and right for the chucking operation in the direction of arrow D. In addition, an inverted T-shaped terminal retainer 124 can slide up and down (in the direction of arrow E) with respect to each slit 122 and is inserted into the slit 122 so as not to hinder the left-right movement.
The front foot 16, which is a conductor crimping portion of the terminal 8, is gripped by the approach of the two terminal chuck claws 121. Next, the terminal retainer 124 is guided by the slit 122 and moves downward, and comes into contact with the top 81 of the front foot 16 so that the terminal 8 is chucked by the terminal chuck 12 (FIG. 8). At this time, the side surface portion 82 is sandwiched between the pair of terminal chuck claws 121 so that the width W of the front foot 16 can be measured. Further, the height dimension H of the terminal 8 of the front foot 16 can be measured by being sandwiched between the receiving portion 123 and the terminal presser 124.
[0020]
Next, a displacement measuring means for enabling these measurements will be described based on the conceptual diagram shown in FIG. An air cylinder 25 is provided on each terminal chuck claw 121 and can move each claw 121 in a direction away from each other in synchronization with the left and right. Reference numeral 26 denotes an air cylinder that moves the terminal retainer 124 up and down. Reference numeral 27 denotes a lateral displacement detecting member made of a differential transformer capable of measuring the amount of movement displacement of the pair of terminal chuck claws 121. Reference numeral 28 denotes a height displacement detection member formed of a differential transformer that can measure the amount of displacement of the terminal retainer 124.
Each of the displacement detection members 27 and 28 has a zero point position when the terminal chuck claw 121 and the terminal retainer 124 are both in a standby position where the terminal 8 is not chucked, and from here to a position where the terminal 8 is chucked and stopped. The amount of movement of the terminal retainer 124 can be detected by the movement of the iron cores 31 and 32 in the coils 29 and 30.
[0021]
Next, the insertion determination processing means for determining whether or not the 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. When the width of the measured value within a certain range with respect to the reference value is set as an allowable value, and it is determined that the measured value is within the allowable value range, the crimping at the conductor crimping portion of the terminal 8, that is, the front foot 16 The terminal insertion process is allowed to satisfy the strength, but if the allowable value is out of the range, it is determined that the crimping strength is insufficient, and the insertion process is immediately stopped. Such an allowable value is input as data to the control means constituting the automatic terminal insertion machine 1 in advance. This allowable value is input for each terminal product number.
In this way, immediately before the terminal insertion step, whether or not each measurement result is within the allowable range is determined by the control means. Therefore, this comparison determination is substantially the same as the width dimension W and the height dimension H of the terminal 8 immediately before insertion are substantially measured.
[0022]
Next, the chuck insertion process of the terminal-attached electric wire 7 by the automatic terminal insertion machine when assuming that the terminal 8 has a predetermined caulking strength will be described. In addition, the description of the inspection apparatus for inserting the terminal in the terminal chuck 12, the measurement means, and the insertion determination processing means will be described later.
In the pre-process, the terminal-attached electric wire 7 is prepared by supporting the terminal block 4, the electric wire guide member 20, and the clamp rod 3 (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 7 with a terminal set and prepared. Next, the entire terminal insertion head 6 is lowered to the state shown in FIG. At this time, when the wire portion 9 is lifted in the groove 23 of the clamp rod 3, the portion 9 is pressed by the wire retainer 22 so as to come into contact with the groove bottom. Further, the variation of the warp in the left-right direction and the curved deformation in the horizontal plane of the wire portion 9 fitted in the groove 21 of the wire guide member 20 is corrected.
[0023]
Next, after the terminal-attached electric wire 7 is straightened, the crimped terminal crimping portion 81 is moved by the terminal chuck 12 (12 'in FIG. 1), and the electric wire portion 9 is moved by the electric wire chuck 13 (13 in FIG. 1). ') Is chucked by the pair of claws 131. The chucked electric wire 7 moves to the position of the predetermined terminal accommodating chamber 101 to be inserted from the connector 10 as shown in FIG. 5B by the upward movement of the terminal insertion head 6. The terminals 8 advance in the direction of the arrow C while the chucks 12 and 13 are kept at a constant interval, and the front end of the terminals 8 is inserted in the vicinity of the entrance of the terminal accommodating chamber 101 for alignment. From this state, only the terminal chuck 12 is once lifted up, and the wire chuck 13 further advances in the direction of the connector 10 (C direction). Thus, the terminal 8 is inserted into the terminal accommodating chamber 101, and the insertion is completed. Thereafter, the wire chuck 13 is also lifted up, and the terminal insertion head 6 and the chucks 12 and 13 are returned to the initial positions, and the next terminal insertion process is started.
[0024]
Next, 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 will be described.
FIG. 10 is a flowchart for determining whether or not a terminal can be inserted. First, as shown in FIGS. 6 and 8, both side portions 82 of the terminal 8 are clamped by a pair of terminal chuck claws 121 by the operation of the air cylinder 25. . Thus, in step 1 (hereinafter, “step” is displayed as “S”), the displacement measuring member 27, which is one element of the displacement measuring means, measures the stroke from the reference position as the moving displacement amount (S1 in FIG. 10). . The movement amount measured in S2 is compared with the range of allowable values (S2). In S3, it is determined whether or not the measured value is within the allowable range. If it is determined not to exceed the allowable value, the width dimension W of the terminal will be at normal. Next, proceeding to S4, the terminal retainer 124 moves downward as shown by the arrow D by the operation of the air cylinder 26 (FIG. 6). It abuts on the top 81 of the front foot 16 of the terminal and stops as shown in FIG. At this time, the stroke amount, that is, the movement amount of the terminal retainer 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. In S6, based on the comparison result, it is determined whether or not the terminal retainer 124 is within the allowable range. That is, when it is determined that the value is within the allowable range, it is determined for the first time that the height dimension H of the front foot 16 of the terminal is normal, and the caulking strength is determined to be within a certain standard range. Thus, the terminal 8 is inserted into the terminal accommodating chamber 101 of the connector 10 while being chucked by the terminal chuck claw 121 and the terminal presser 124 (S7).
[0025]
However, if it is determined in S3 that the terminal width W is outside the allowable range in S6, an NG display is immediately made (S8) and the automatic terminal insertion machine 1 is stopped (S9). Then, the operator confirms the state of the NG terminal, corrects the terminal so as to be in a normal state, sets it to a predetermined terminal, and performs a reinsertion inspection (S10).
[0026]
Since the present embodiment has the above-described configuration, the front foot 16 which is the crimp terminal portion of the terminal 8 is sandwiched between the terminal chuck 12 and the terminal retainer 124 before the terminal 8 is inserted into the terminal accommodating chamber 101. By measuring the displacement of the closing position of the terminal chuck claw 121 and the descending end position of the terminal retainer, it is inspected whether the lateral width W and the height dimension H of the terminal are within predetermined dimensions. When it is determined that any of the dimensions is not within the predetermined dimension, it is determined that the caulking strength in the front foot 16 which is the conductor crimping portion is insufficient, and the operation of the automatic terminal insertion machine 1 is immediately stopped, and the terminal It is possible to check the state of the item, correct it to the normal state, make fine adjustments, and repeat the insertion operation using the automatic terminal insertion machine.
Therefore, since the conductor crimping portion is inspected by measurement to determine whether it has a predetermined crimping strength before inserting the terminal, it is possible to prevent a terminal with insufficient crimping strength from being inserted into the connector. It is possible to judge the status of the process. Furthermore, since the state of the terminal chuck 12 and the terminal presser 22 can be monitored, the automatic terminal insertion machine 1 can be self-diagnosed, and the occurrence of problems in the automatic terminal insertion process can be satisfactorily suppressed.
[0027]
As described above, the present embodiment has been specifically described in detail. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the present invention are included in the present invention. It is.
For example, the lateral displacement detection member 27 and the height displacement detection member 28 are of the sensor unit type incorporating the differential transformers 29 and 30, but the rotation angle and the amount of rotation are measured using a step motor. Further, a displacement sensor or a position sensor other than this may be used.
[0028]
【The invention's effect】
As explained above, according to the inspection method of the insertion terminal in the automatic terminal insertion machine according to the present invention described in claim 1, the terminal is held by the terminal chuck before the terminal is inserted into the terminal accommodating chamber. The size of the conductor crimping portion is measured, and whether or not the measured dimension is within a preset allowable range, the crimping state of the crimping strength of the conductor crimping portion is inspected, Since the insertion of the terminal is stopped only when the measured dimension is outside the range of the allowable value, the state of the conductor crimping part is in-line checked, and the crimping strength of the crimping part satisfies the predetermined strength. It is possible to prevent the insertion of a terminal that does not exist in advance, and as a result, the product can be guaranteed.
[0029]
In addition , the terminal chuck can measure the width and height of the conductor crimping part by sandwiching the top and bottom and the left and right sides of the conductor crimping part, and the allowable value is equivalent to maintaining normal caulking strength. When the horizontal width dimension and the height dimension of the conductor crimping portion are set as reference values, it is set to have a certain range with respect to the reference value, so that the caulking strength can be measured more accurately, and as a result, Since the status of the terminal chuck and the terminal presser can be monitored, the state of the automatic terminal insertion machine can be self-diagnosed, and as a result, the occurrence of problems can be suppressed.
[0030]
According to the insertion terminal inspection apparatus in the automatic terminal insertion machine according to the present invention described in claim 2 , the displacement measuring member that measures the dimension of the conductor crimping portion by the terminal chuck that grips the conductor crimping portion, the displacement Insertion determination processing means for determining whether or not the measured numerical value based on the measurement member is within a preset allowable value range, and only when the measured numerical value is not within the allowable value range by the insertion determination processing means Since the control means for stopping the automatic terminal insertion machine before the insertion of the terminal, it is possible to accurately determine the caulking strength situation of the conductor crimping portion, and the terminal having insufficient strength If it is determined that the automatic terminal insertion machine is forcibly stopped, the product guarantee of the sub-wire harness can be enhanced .
[0031]
The terminal chuck is formed so as to move up and down with respect to the terminal chuck claw and a pair of terminal chuck claws that measure the lateral width by measuring the closed position by grasping the left and right sides of the conductor crimping portion of the terminal. Since it has a terminal presser that measures the height by measuring the position that contacts the crimping part of the conductor by moving downward, it can reliably prevent the insertion of a terminal that has made a crimping error, thus guaranteeing the product. There is an effect that can be improved.
[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 wire guide member of FIG.
FIG. 3 is an operation explanatory view showing a state before the terminal-attached electric wire is chucked.
FIG. 4 is an operation explanatory view showing a state in which a terminal-attached electric wire is chucked.
5A is an enlarged cross-sectional view of a main part taken along the line BB in FIG. 4, and FIG.
FIG. 6 is a conceptual diagram showing a displacement measuring means incorporated in a terminal chuck.
FIG. 7 is an external assembly view showing a configuration of a mutual relationship between a terminal chuck claw and a terminal presser.
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 presser.
FIG. 9 is a cross-sectional view showing the relationship between the width dimension and the height dimension of the 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 in which the electric wire with terminal of FIG. 11 is set on the terminal block and the clamp rod. FIG.
13 is an operation explanatory view showing a state in which the electric wire with terminal of FIG. 12 is chucked.
14 is a cross-sectional view taken along line AA in FIG.
FIG. 15 is an operation explanatory view showing a state of the electric wire with terminal before being chucked.
FIG. 16 is an operation explanatory view showing a state immediately before an electric wire is inserted into a connector housing.
[Explanation of symbols]
1 Automatic terminal insertion machine 6 Terminal insertion head 7 Electric wire with terminal 8 Terminal 9 Electric wire part 10 Connector (connector housing)
12 Terminal chuck 13 Electric wire chuck 16 Forefoot (conductor crimping part)
27 Horizontal displacement detection member 28 Height displacement detection member 121 Terminal chuck claw 124 Terminal pressing W Horizontal width H Height dimensions S1 to S10 Insertion determination processing means

Claims (2)

In a terminal insertion method in which a terminal- attached electric wire with a terminal chuck and an electric wire chuck provided on a terminal insertion head of an automatic terminal insertion machine are gripped, and the terminal is inserted into a predetermined terminal accommodating chamber of a connector housing.
The terminal chuck is composed of a pair of left and right open / close type terminal chuck claws and a receiving portion orthogonal to the bottom of one terminal chuck claw, and the terminal received by the receiving portion can be pressed by a lifting type terminal presser. A width displacement detecting member interlocking with the pair of terminal chuck claws, and a height displacement detecting member interlocking with the terminal presser,
The high to the terminal prior to insertion into the terminal receiving chamber, as well as measure the lateral width of the conductor crimping portion of the terminal grabbed by said terminal chuck lateral width displacement detecting member, the height of the conductor crimping portion Measured by the displacement detection member, and compared whether or not the measured dimension is within a preset allowable range, the crimping state of the conductor crimping part is inspected, and the measured dimension is the tolerance When the terminal is out of the value range, the insertion of the terminal is stopped. When the terminal is within the allowable value range, the terminal is inserted into the terminal accommodating chamber by the terminal chuck, the terminal presser and the wire chuck. A method of inspecting an insertion terminal in an automatic terminal insertion machine, characterized in that it has been made . In an automatic terminal insertion machine in which a terminal and an electric wire portion of a terminal-attached electric wire are chucked by a terminal chuck and an electric wire chuck provided in an insertion head, and the terminal is inserted into a predetermined terminal accommodating chamber of a connector housing.
The terminal chuck is composed of a pair of left and right open / close type terminal chuck claws for gripping the conductor crimping portion of the terminal and a receiving portion orthogonal to the bottom of one terminal chuck claw, and the terminal received by the receiving portion An elevating type terminal presser that can be pressed is provided, a lateral displacement detection member that is linked to the pair of terminal chuck claws, and a height displacement detection member that is linked to the terminal presser,
The lateral width dimension of the conductor crimping part is measured by the lateral width detecting member, the height dimension of the conductor crimping part is measured by the height displacement detecting member, and the measured numerical value based on each displacement detecting member is set to a preset tolerance. An insertion determination processing means for determining whether or not the value is within a range of values, and when the measured numerical value is not within the allowable value range by the insertion determination processing means, before the insertion of the terminal, the automatic terminal insertion machine Control means for stopping the terminal, and when the terminal is within the allowable range, the terminal is inserted into the terminal accommodating chamber by the terminal chuck, the terminal presser and the wire chuck. Inspection device for insertion terminal in automatic terminal insertion machine.

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