CN108106521B - Terminal inspection device - Google Patents
Terminal inspection device Download PDFInfo
- Publication number
- CN108106521B CN108106521B CN201711136790.6A CN201711136790A CN108106521B CN 108106521 B CN108106521 B CN 108106521B CN 201711136790 A CN201711136790 A CN 201711136790A CN 108106521 B CN108106521 B CN 108106521B
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- Prior art keywords
- terminal
- insertion hole
- crimp
- hole
- crimp terminal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Provided is a terminal inspection device capable of suppressing variations in inspection results. A terminal inspection device (1) is provided with: an insertion hole (20) formed in the body and allowing insertion of the crimp terminal (100) with an error less than a predetermined amount from a standard shape; a locking part (27) which is arranged at a predetermined depth position of the insertion hole and locks a protrusion part (14) formed on the crimping terminal; and a confirmation hole (23) formed in the body and communicating with the insertion hole, wherein the confirmation hole communicates the part of the insertion hole where the locking part is formed with the external space of the body, so that the locking part can be seen from the outside of the body.
Description
Technical Field
The present invention relates to a terminal inspection device.
Background
Conventionally, there is a device for measuring a terminal. For example, patent document 1 discloses the following technique: a terminal holding table having an insertion hole for an electric contact portion of a terminal is provided, and a bending determination jig for the terminal of a terminal sub-visual board is provided on a terminal insertion side of the terminal holding table. The terminal visual plate of patent document 1 is provided with a bend determination surface or a see-through hole for bend determination, which is parallel to a plane including the insertion hole and has a height equal to a limit value of a bend dimension of the terminal from the plane.
Documents of the prior art
Patent document
Patent document 1: japanese Kokai publication Sho-61-189206
Disclosure of Invention
Problems to be solved by the invention
In the inspection of the terminal, it is desirable to suppress variation in the inspection result. For example, when the degree of bending is judged to be acceptable or not by visual observation, the inspection result may vary depending on individual differences.
The invention aims to provide a terminal inspection device capable of suppressing deviation of inspection results.
Means for solving the problems
The terminal inspection device of the present invention includes: an insertion hole formed in the body and allowing insertion of the crimp terminal, the error of which from the standard shape is a predetermined amount or less; a locking portion provided at a predetermined depth position of the insertion hole and locking a protrusion formed on the crimp terminal; a confirmation hole formed in the body and communicating with the insertion hole, the confirmation hole communicating a portion of the insertion hole where the locking portion is formed with an external space of the body so that the locking portion can be seen from outside the body.
In the terminal inspection device, it is preferable that the locking portion is an inner wall surface of the confirmation hole.
In the terminal inspection device, it is preferable that a guide groove for guiding the protruding portion is formed in the insertion hole on the inlet side of the locking portion, and the insertion hole allows insertion of the crimp terminal when the protruding portion of the inserted crimp terminal faces the guide groove.
In the terminal inspection device, it is preferable that the body is provided with the insertion hole into which a male crimp terminal is inserted and the insertion hole into which a female crimp terminal corresponding to the male crimp terminal is inserted, respectively.
ADVANTAGEOUS EFFECTS OF INVENTION
The terminal inspection device according to the present invention includes: an insertion hole formed in the body and allowing insertion of the crimp terminal, the error of which from the standard shape is a predetermined amount or less; a locking part which is arranged at a predetermined depth position of the insertion hole and locks a protrusion part formed on the crimping terminal; and a confirmation hole formed in the body and communicating with the insertion hole. The confirmation hole communicates a portion of the insertion hole where the locking portion is formed with an external space of the main body so that the locking portion can be seen from outside the main body. According to the terminal inspection device of the present invention, the following effects are obtained: variations in inspection results can be suppressed.
Drawings
Fig. 1 is a perspective view of a terminal inspection device according to an embodiment.
Fig. 2 is a perspective view of a female crimp terminal according to an embodiment.
Fig. 3 is a side view of the female crimp terminal according to the embodiment.
Fig. 4 is a sectional view of a female terminal inspection portion according to the embodiment.
Fig. 5 is a front view of the female terminal inspection section according to the embodiment.
Fig. 6 is a rear view of the female terminal inspection section according to the embodiment.
Fig. 7 is another cross-sectional view of the female terminal inspection portion according to the embodiment.
Fig. 8 is another cross-sectional view of the female terminal inspection section according to the embodiment.
Fig. 9 is a cross-sectional view along a guide groove of the female terminal inspection section according to the embodiment.
Fig. 10 is a sectional view showing a state where the stabilizer is locked by the locking portion.
Fig. 11 is a side view of the male crimp terminal according to the embodiment.
Fig. 12 is a cross-sectional view of the male terminal inspection portion according to the embodiment.
Fig. 13 is a front view of the male terminal inspection portion according to the embodiment.
Fig. 14 is a rear view of the male terminal inspection portion according to the embodiment.
Fig. 15 is another cross-sectional view of the male terminal inspection portion according to the embodiment.
Fig. 16 is another cross-sectional view of the male terminal inspection portion according to the embodiment.
Fig. 17 is an explanatory view of the crimp width and the crimp height.
Fig. 18 is a diagram showing a measurement device according to modification 1 of the embodiment.
Fig. 19 is a diagram for explaining a measurement method performed by the measurement device according to variation 1 of the embodiment.
Description of reference numerals
1: terminal inspection device
2: female terminal inspection part
2 a: display mark
2 b: surface of
2 c: back side of the panel
3: inspection part of male terminal
3 a: display mark
3 b: surface of
3 c: back side of the panel
10: terminal fitting
11. 61: terminal connection part
12. 62: electric wire connecting part
12A, 62A: core wire crimping part
12B, 62B: skin-covered crimping part
12C, 62C: connecting and crimping part
13. 63: connecting part
14. 64: stabilizer (projection)
15: engaging protrusion
20: inserting hole
21: insertion opening
22: projection port
23: confirmation hole
23 a: inner wall surface of outlet side
23b, 23 c: concave part
24: inlet side hole part
24 a: concave part
24 b: guiding groove
25: outlet side hole part
26: step part
27: stop part
30: inserting hole
31: insertion opening
32: projection port
33: confirmation hole
37: stop part
40: measuring apparatus
41: main body
42: movable part
43: screw nail
44: scale division
45: height scale
46: width scale
47: base line
50: electric wire
100. 200: crimping terminal
C/W: width of crimping
C/H: height of crimping
Ht1, Ht 2: height
Wd1, Wd 2: width of
Detailed Description
Hereinafter, a terminal inspection device according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the present embodiment. The components of the embodiments described below include components that can be easily conceived by those skilled in the art or substantially the same components.
[ embodiment ]
Referring to fig. 1 to 16, an embodiment will be explained. The present embodiment relates to a terminal inspection device. Fig. 1 is a perspective view of a terminal inspection device according to an embodiment; fig. 2 is a perspective view of a crimp terminal according to an embodiment; fig. 3 is a side view of the crimp terminal according to the embodiment; fig. 4 is a cross-sectional view of a female terminal inspection portion according to an embodiment; FIG. 5 is a front view of a female terminal inspection section according to the embodiment; fig. 6 is a rear view of a female terminal inspection portion according to the embodiment; fig. 7 is another cross-sectional view of the female terminal inspection portion according to the embodiment; fig. 8 is another cross-sectional view of the female terminal inspection portion according to the embodiment; fig. 9 is a cross-sectional view taken along a guide groove of a female terminal inspection section according to the embodiment; fig. 10 is a sectional view showing a state where the stabilizer is locked by the locking portion.
Figure 4 shows a section IV-IV of figure 1. Fig. 7 shows a section VII-VII of fig. 4. Fig. 8 shows a section VIII-VIII of fig. 4. Fig. 9 shows the IX-IX section of fig. 5. FIG. 12 shows a section XII-XII of FIG. 1. FIG. 15 shows the XV-XV cross-section of FIG. 12. Fig. 16 shows a cross-section XVI-XVI of fig. 12.
The terminal inspection apparatus 1 shown in fig. 1 has a main body 4. The main body 4 is a block-shaped member having a substantially rectangular parallelepiped shape as a whole. A plate-like portion 5 having a through hole 5a is formed at one end of the body 4 in the longitudinal direction. The through-hole 5a is used when the terminal inspection device 1 is carried. The body 4 has a female terminal inspection portion 2 and a male terminal inspection portion 3. The female terminal inspection section 2 is provided with an insertion hole 20 into which a female crimp terminal 100 to be described later is inserted. The male terminal inspection portion 3 is provided with an insertion hole 30 into which a male crimp terminal 200 (see fig. 11) corresponding to the crimp terminal 100 is inserted. The female terminal inspection part 2 and the male terminal inspection part 3 are provided adjacent to each other in the longitudinal direction of the body 4.
The female terminal inspection portion 2 and the male terminal inspection portion 3 are rectangular parallelepiped components, respectively. The female terminal inspection portion 2 is formed with an insertion hole 20. The insertion hole 20 penetrates the female terminal inspection section 2 in a direction perpendicular to the longitudinal direction of the body 4. An insertion hole 30 is formed in the male terminal inspection portion 3. The insertion hole 30 penetrates the male terminal inspection portion 3 in the same direction as the insertion hole 20. In the following description, the direction in which the insertion holes 20, 30 extend is referred to as "insertion direction".
The insertion port 21 of the insertion hole 20 is an inlet into which a female crimp terminal 100 described later is inserted. Similarly, the insertion port 31 of the insertion hole 30 is an inlet into which the male crimp terminal 200 is inserted. The insertion hole 20 is similar in construction to the insertion hole 30. Here, the structure and the method of using the terminal inspection device 1 will be described by taking the female crimp terminal 100 and the female terminal inspection part 2 as an example.
A display mark 2a is provided on the surface 2b of the female terminal inspection portion 2. The surface 2b is a surface where the insertion port 21 is opened. The display mark 2a shows that the portion provided with the display mark 2a is the female terminal inspection portion 2. The display mark 2a indicates that the opening of the surface on which the display mark 2a is provided is the insertion port 21 of the crimp terminal 100. A display mark 3a is provided on a surface 3b of the male terminal inspection portion 3. The surface 3b is a surface where the insertion port 31 is opened. The display mark 3a shows that the portion provided with the display mark 3a is the male terminal inspection portion 3. The display mark 3a indicates that the opening of the surface on which the display mark 3a is provided is the insertion port 31 of the crimp terminal 200.
As shown in fig. 2 and 3, the female crimp terminal 100 to be inspected has a terminal fitting 10. The terminal fitting 10 has a terminal connecting portion 11, an electric wire connecting portion 12, and a connecting portion 13. The terminal connecting portion 11 is a portion electrically connected to a counterpart terminal. The wire connection portion 12 is a portion to be crimped with the wire 50 and is electrically connected to a core wire of the wire. The coupling portion 13 is provided between the terminal connection portion 11 and the wire connection portion 12. In other words, the terminal connection portion 11 and the wire connection portion 12 are connected via the connection portion 13.
In the crimp terminal 100 of the present embodiment, the terminal connecting portion 11 is formed in a female shape to be connected to the counterpart male terminal 200. More specifically, the terminal connecting portion 11 is formed in a cylindrical shape into which the mating male terminal 200 can be inserted. The terminal connecting portion 11 has a rectangular square-cylindrical shape in cross section perpendicular to the connecting direction of the counterpart terminal. In this specification, a direction of connection with the counterpart terminal is referred to as a "first direction L". The first direction L is a longitudinal direction of the crimp terminal 100. The width direction of the crimp terminal 100 is referred to as "second direction W", and the height direction of the crimp terminal 100 is referred to as "third direction H". The third direction H is a pressing direction in which the wire connecting portion 12 is pressed by the pressing device when the wire 50 is pressed against the wire connecting portion.
The wire connecting portion 12 is located on an extension of the terminal connecting portion 11. The wire connecting portion 12 is located on the rear end side of the terminal connecting portion 11 in the insertion direction with respect to the counterpart terminal. The electric wire connecting part 12 has a core wire crimping part 12A, a sheath crimping part 12B, and a connection crimping part 12C. The core wire crimping section 12A, the coupling crimping section 12C, and the sheath crimping section 12B are continuous in this order along the first direction L.
The wire connecting portion 12 has two barrel portions which enclose and crimp the electric wire 50. The core wire crimping part 12A is a part crimped with the core wire of the electric wire 50. The sheath crimping part 12B is a part crimped with the sheath of the electric wire 50. The electric wire 50 extends from the wire connection portion 12 crimped so as to form a cylindrical shape to the opposite side of the terminal connection portion 11. The outer dimension of the sheath pressure-bonding section 12B is larger than the outer dimension of the core wire pressure-bonding section 12A in accordance with the difference in thickness of the pressure-bonding object. That is, the terminal width and the terminal height of the sheath crimping section 12B are also larger than those of the core wire crimping section 12A.
The terminal connecting portion 11 has a stabilizer 14 and an engaging protrusion 15. The stabilizer 14 is a protruding portion protruding in the third direction H. The stabilizer 14 is provided at one side wall 11a of the terminal connecting portion 11. The stabilizer 14 is provided at a position close to the rear end portion in the insertion direction with respect to the counterpart terminal. The stabilizer 14 limits the erroneous insertion of the crimp terminal 100. A cavity into which the crimp terminal 100 is inserted is provided in a connector or the like that accommodates the crimp terminal 100. The cross-sectional shape of the chamber is a shape having a concave portion corresponding to the stabilizer 14. The cavity allows insertion of the crimp terminal 100 in a case where the posture of the crimp terminal 100 is a standard posture.
The engaging protrusion 15 is a protruding portion protruding from the upper surface of the terminal connecting portion 11 in the third direction H. The engaging projection 15 is provided at a position close to the distal end portion in the insertion direction with the counterpart terminal. The engaging projection 15 engages with a recess or the like provided in the cavity.
Referring to fig. 4 to 7, the structure of the insertion hole 20 is explained. As shown in fig. 4, the insertion hole 20 is continuously provided from an insertion port 21 opened on the front surface 2b of the female terminal inspection section 2 to a projection port 22 opened on the rear surface 2 c. The insertion hole 20 has an inlet-side hole portion 24 and an outlet-side hole portion 25. The inlet-side hole 24 is located on the inlet side of the insertion hole 20 and connected to the insertion port 21. The outlet-side hole 25 is located on the outlet side of the insertion hole 20 with respect to the inlet-side hole 24, and is connected to the projection 22. A stepped portion 26 is formed at the boundary between the inlet-side hole portion 24 and the outlet-side hole portion 25.
The outlet-side hole 25 is a portion into which the terminal connecting portion 11 of the crimp terminal 100 is inserted. The inlet-side hole portion 24 is a portion into which the wire connection portion 12 is inserted and through which the terminal connection portion 11 can pass. Fig. 5 shows a front view of the insertion hole 20 as viewed from the inlet side. Fig. 6 shows a rear view of the insertion hole 20 as viewed from the outlet side. As shown in fig. 5 and 6, the cross-sectional area of the outlet-side hole portion 25 is smaller than the cross-sectional area of the inlet-side hole portion 24. In more detail, the width Wd2 of the outlet-side hole portion 25 is smaller than the width Wd1 of the inlet-side hole portion 24. The width Wd2 of the outlet-side hole 25 is, for example, a size into which the terminal connection portion 11 can be inserted and into which the electric wire connection portion 12 cannot be inserted.
The inlet-side hole 24 is provided with a recess 24a for the engaging projection 15 and a guide groove 24b for the stabilizer 14. The recess 24a and the guide groove 24b are formed on one inner wall surface in the height direction of the inlet-side hole 24. The recess 24a is provided at the center in the width direction of the inlet-side hole 24. Further, in the inlet-side hole portion 24 and the outlet-side hole portion 25, the width direction corresponds to the second direction W of the crimp terminal 100, and the height direction corresponds to the third direction H of the crimp terminal 100. The guide groove 24b is provided at one end in the width direction of the inlet-side hole portion 24. The recess 24a and the guide groove 24b are adjacent to each other and extend in the insertion direction to a confirmation hole 23 described later.
As shown in fig. 4, the confirmation hole 23 communicates with the insertion hole 20. The confirmation hole 23 is a hole extending in the height direction of the female terminal inspection portion 2, and one end thereof opens into the insertion hole 20. The other end of the confirmation hole 23 opens on one surface in the height direction of the female terminal inspection part 2. The confirmation hole 23 is, for example, a hole having a circular or rectangular cross-sectional shape. The axial direction of the confirmation hole 23 of the present embodiment is perpendicular to the axial direction of the insertion hole 20. The confirmation holes 23 communicate with an end portion on the outlet side of the inlet-side hole portion 24 and an end portion on the inlet side of the outlet-side hole portion 25. That is, the confirmation hole 23 communicates with the portion of the insertion hole 20 including the step portion 26. The confirmation hole 23 opens at the surface of the insertion hole 20 where the guide groove 24b is formed.
As shown in fig. 6, the outlet-side hole portion 25 is provided with a recess 25a for the engaging projection 15. The recess 25a is continuous with the recess 24a of the inlet-side hole 24. The engagement projection 15 of the terminal connecting portion 11 passes through the recesses 24a, 25a when inserted into the insertion hole 20. The stabilizer 14 passes through the guide groove 24b when inserted into the insertion hole 20.
Fig. 7 to 9 show the traveling direction Y1 of the crimp terminal 100 when the crimp terminal 100 is inserted into the insertion hole 20. As shown in fig. 9, the crimp terminal 100 is inserted into the insertion hole 20 starting from the terminal connecting portion 11. At this time, the insertion hole 20 allows insertion of the crimp terminal 100 with the engagement projection 15 facing the recess 24 a. On the other hand, the insertion hole 20 restricts the insertion of the crimp terminal 100 without the engagement projection 15 facing the recess 24 a.
For example, the insertion hole 20 restricts the insertion of the crimp terminal 100 in a case where the crimp terminal 100 is laid down, that is, in a case where the second direction W of the crimp terminal 100 is perpendicular to the width direction of the insertion hole 20. In addition, the insertion hole 20 restricts the insertion of the crimp terminal 100 when the posture of the crimp terminal 100 is reversed. In this way, the insertion hole 20 is configured to allow insertion of the crimp terminal 100 only when the crimp terminal 100 is in a correct posture.
Further, the insertion hole 20 allows insertion of the crimp terminal 100 with the stabilizer 14 facing the guide groove 24 b. On the other hand, the insertion hole 20 restricts the insertion of the crimp terminal 100 in a case where the stabilizer 14 does not face the guide groove 24 b. Therefore, the insertion hole 20 of the present embodiment has a double prevention structure to prevent the crimp terminal 100 from being inserted in an incorrect posture.
When the crimp terminal 100 is inserted into the insertion hole 20, the terminal connecting portion 11 advances inward in the inlet-side hole portion 24. When the shape and size of the crimp terminal 100 are within the specification, the terminal connecting portion 11 is further advanced toward the outlet-side hole portion 25 by the stepped portion 26. In the following description, the shape and size of the crimp terminal 100 within the specification are referred to as "within the specification", and the shape and size of the crimp terminal 100 outside the specification are referred to as "outside the specification". When the crimp terminal 100 within the specification is inserted into the insertion hole 20, as shown in fig. 10, the distal end portion of the terminal connecting portion 11 protrudes from the protrusion opening 22 to the external space of the female terminal inspection portion 2.
Here, as shown in fig. 9, the insertion hole 20 of the present embodiment is provided with a locking portion 27 that locks the stabilizer 14 of the crimp terminal 100. The locking portion 27 is also an inner wall surface of the confirmation hole 23. More specifically, the locking portion 27 is a part of the inner wall surface 23a on the outlet side of the confirmation hole 23. The locking portion 27 is an end of the inner wall surface 23a on the outlet side on the insertion hole 20 side. The locking portion 27 is a portion located on an extension of the guide groove 24b in the insertion direction. As shown in fig. 9, in the cross section passing through the locking portion 27, the height Ht1 of the outlet-side hole portion 25 is lower than the height Ht2 of the terminal connecting portion 11 of the portion where the stabilizer 14 is provided. That is, the outlet-side hole portion 25 is configured to be inaccessible to the stabilizer 14. When the terminal connecting portion 11 is inserted into the outlet-side hole 25, the stabilizer 14 is locked by the locking portion 27.
Fig. 10 shows a state in which the stabilizer 14 is locked by the locking portion 27. When the stabilizer 14 is locked by the locking portion 27, the insertion of the crimp terminal 100 is stopped. The locking portion 27 of the present embodiment is configured to lock the stabilizer 14 after the entire crimp terminal 100 is inserted into the insertion hole 20. In other words, the depth position of the locking portion 27 of the insertion hole 20 is determined so that the entire crimp terminal 100 is accommodated inside the insertion hole 20 before the stabilizer 14 is locked to the locking portion 27. An inspector who inspects the crimp terminal 100 can visually recognize the state in which the stabilizer 14 is locked by the locking portion 27 through the confirmation hole 23. The confirmation hole 23 communicates the insertion hole 20 with the space outside the body 4 in such a manner that the locking portion 27 can be seen from the outside of the body 4. The locking portion 27 of the present embodiment is an inner wall surface 23a of the confirmation hole 23, but may be a part of the insertion hole 20. That is, the confirmation hole 23 communicates the outer space of the body 4 with the portion of the insertion hole 20 where the locking portion 27 is formed.
When the crimp terminal 100 is out of specification, the insertion of the crimp terminal 100 is restricted until the stabilizer 14 reaches the locking portion 27. For example, it is assumed that at least 1 of the deformations such as bending, twisting, rolling, and the like are generated in the crimp terminal 100. Due to this deformation, when the shape of the crimp terminal 100 is out of the range of the specification, the crimp terminal 100 is caught by the insertion port 21, the stepped portion 26, and the like, and the crimp terminal 100 cannot be further inserted into the insertion hole 20. That is, the insertion hole 20 allows insertion of the crimp terminal 100 having an error of a predetermined amount or less from the standard shape, but restricts insertion of the crimp terminal 100 having an error of a predetermined amount or less from the standard shape. When the insertion hole 20 is inserted into the crimp terminal 100 having an error from the standard shape exceeding the allowable range, the insertion of the crimp terminal 100 is restricted until the stabilizer 14 abuts on the position of the locking portion 27 during the insertion of the crimp terminal 100.
When the insertion of the crimp terminal 100 into the insertion hole 20 is stopped, an inspector who inspects the crimp terminal 100 confirms the locking portion 27 by confirming the hole 23. At this time, if the stabilizer 14 does not abut against the locking portion 27, it is determined that the crimp terminal 100 is out of specification. On the other hand, if the stabilizer 14 abuts against the locking portion 27, it is determined that the crimp terminal 100 is within the specification.
Even if the crimp terminal 100 has the same shape, the insertion stop position of the crimp terminal 100 differs depending on the force applied to the insertion hole 20. Therefore, the inspection result may vary depending on the magnitude of the pressing force. Therefore, for example, the crimp terminal 100 may be press-fitted into the insertion hole 20 by the self-weight of the terminal inspection apparatus 1. For example, the inspector holds the crimp terminal 100 with the tip of the crimp terminal 100 directed upward, and inserts the crimp terminal 100 into the insertion hole 20. Thereafter, the terminal inspection apparatus 1 is lowered by its own weight. Due to the lowering of the terminal inspection device 1, the crimp terminal 100 is inserted into the inside of the insertion hole 20. If the lowering of the terminal inspection device 1 is stopped, the inspector confirms the locking portion 27 from the confirmation hole 23. This further suppresses variation in the test results due to individual differences.
Referring to fig. 11 to 16, the male terminal inspection portion 3 will be described. The male crimp terminal 200 inspected by the male terminal inspection portion 3 has a terminal connection portion 61 and a wire connection portion 62 as shown in fig. 11, similarly to the female crimp terminal 100. The terminal connection portion 61 of the male-type crimp terminal 200 is engaged with the terminal connection portion 11 of the crimp terminal 100. The terminal connection portion 61 has a cylindrical portion 61A and a connection portion 61B. The cylindrical portion 61A is formed in a square cylindrical shape and fitted into a terminal housing portion provided in a connector or the like. The stabilizer 64 is provided in the cylindrical portion 61A. The stabilizer 64 is provided on one side wall 65 of the cylindrical portion 61A. The stabilizer 64 is a protrusion protruding in the third direction H. The stabilizer 64 is disposed at a position close to the rear end in the insertion direction of the counterpart terminal.
The connecting portion 61B protrudes in the first direction L from an end portion of the cylindrical portion 61A opposite to the wire connecting portion 62 side. The connection portion 61B is a rod-shaped or needle-shaped component, and is inserted into the terminal connection portion 11 of the crimp terminal 100. The wire connection portion 62 of the male crimp terminal 200 has a core wire crimping portion 62A, a sheath crimping portion 62B, and a coupling crimping portion 62C, as in the wire connection portion 12. The terminal connection portion 61 and the wire connection portion 62 are connected via a connection portion 63.
As shown in fig. 12, the insertion hole 30 is provided continuously from an insertion port 31 opening on the front surface 3b of the male terminal inspection section 3 to a projection port 32 opening on the rear surface 3 c. The insertion hole 30 has an inlet-side hole portion 34 and an outlet-side hole portion 35. A stepped portion 36 is formed at the boundary between the inlet-side hole 34 and the outlet-side hole 35.
Fig. 13 shows a front view of the insertion hole 30 as viewed from the inlet side. Fig. 14 shows a rear view of the insertion hole 30 as viewed from the outlet side. As shown in fig. 13 and 14, the cross-sectional area of the outlet-side hole portion 35 is smaller than the cross-sectional area of the inlet-side hole portion 34. In more detail, the width Wd4 of the outlet-side holes 35 is smaller than the width Wd3 of the inlet-side holes 34. The width Wd4 of the outlet-side hole 35 is, for example, a size into which the terminal connection portion 61 of the crimp terminal 200 can be inserted and into which the electric wire connection portion 62 cannot be inserted. Further, as in the case of the female-type crimp terminal 100, the width direction and the height direction of the insertion hole 30 correspond to those of the male-type crimp terminal 200.
The inlet-side hole 34 is provided with a guide groove 34a for a stabilizer 64 provided in the male crimp terminal 200. The guide groove 34a is provided at the end of the inlet-side hole 34 in the width direction. Here, the guide groove 34a is disposed on the opposite side of the guide groove 24b of the female terminal inspection part 2. When the terminal inspection device 1 is viewed from the front, as shown in fig. 5, the guide groove 24b of the female terminal inspection section 2 is disposed at the right end of the inlet hole 24. On the other hand, as shown in fig. 13, the guide groove 34a of the male terminal inspection section 3 is disposed at the left end of the inlet hole 34. This prevents erroneous insertion of the crimp terminal 100. That is, even when the male crimp terminal 200 is inserted into the insertion hole 20 of the female terminal inspection part 2, the stabilizer 64 of the crimp terminal 200 is caught in the insertion hole 21, and insertion is restricted. Even if the female crimp terminal 100 is inserted into the insertion hole 30 of the male terminal inspection portion 3, the stabilizer 14 is caught in the insertion hole 31, and insertion is restricted.
As shown in fig. 12, the confirmation hole 33 communicates with the insertion hole 30. The confirmation hole 33 is a hole extending in the height direction of the male terminal inspection portion 3, and one end thereof opens into the insertion hole 30. The other end of the confirmation hole 33 opens on one surface in the height direction of the male terminal inspection portion 3. The confirmation holes 33 communicate with the end portion on the outlet side of the inlet-side hole portion 34 and the end portion on the inlet side of the outlet-side hole portion 35. That is, the confirmation hole 33 communicates with the portion of the insertion hole 30 including the step portion 36. The confirmation hole 33 is open on the surface of the insertion hole 30 where the guide groove 34a is formed.
In the insertion hole 30, the wall surface of the confirmation hole 33 functions as the locking portion 37 that locks the stabilizer 64 of the crimp terminal 200. The insertion hole 30 allows insertion of the crimp terminal 200 having an error of a predetermined amount or less from the standard shape. When the crimp terminal 200 of the specification is inserted into the insertion hole 30, the stabilizer 64 is locked to the locking portion 37 of the insertion hole 30. On the other hand, when the crimp terminal 200 is out of specification, the insertion of the crimp terminal 200 is restricted until the stabilizer 64 reaches the locking portion 37. Therefore, when the insertion of the crimp terminal 200 is stopped, the locking portion 37 can be visually recognized from the confirmation hole 33, thereby determining whether or not the crimp terminal 200 is within the specification.
As described above, the terminal inspection device 1 of the present embodiment has the insertion holes 20 and 30; locking parts 27, 37; the holes 23, 33 are confirmed. The insertion holes 20 and 30 are formed in the body 4, and allow insertion of the crimp terminals 100 and 200 with an error less than a predetermined amount from a standard shape. The locking portions 27, 37 are provided at predetermined depth positions of the insertion holes 20, 30, and lock the stabilizers 14, 64 formed in the crimp terminals 100, 200. The confirmation holes 23, 33 are formed in the body 4 and communicate with the insertion holes 20, 30. The confirmation holes 23 and 33 communicate the portions of the insertion holes 20 and 30 where the locking portions 27 and 37 are formed with the space outside the body 4 so that the locking portions 27 and 37 can be seen from the outside of the body 4.
When the crimping terminals 100 and 200 are inserted into the insertion holes 20 and 30 to a depth at which the locking portions 27 and 37 of the stabilizers 14 and 64 are locked, the inspector determines that the crimping terminals 100 and 200 meet the specifications. That is, whether the crimp terminal is acceptable or not can be determined by a simple operation of inserting the crimp terminal 100 or 200 into the insertion hole 20 or 30. Therefore, according to the terminal inspection device 1 of the present embodiment, variations in inspection results can be suppressed.
The locking portions 27 and 37 in the present embodiment are inner wall surfaces of the confirmation holes 23 and 33. Therefore, the inspector can easily visually recognize the stabilizers 14 and 64 and the locking portions 27 and 37 from the confirmation holes 23 and 33.
On the insertion holes 20 and 30 of the present embodiment, guide grooves 24b and 34a for guiding the stabilizers 14 and 64 are formed on the inlet side of the locking portions 27 and 37. The insertion holes 20, 30 allow insertion of the crimp terminal 100 with the stabilizers 14, 64 of the inserted crimp terminal 100 facing the guide grooves 24b, 34 a. Therefore, the inspector easily notices the erroneous insertion of the crimp terminals 100 and 200.
The body 4 of the present embodiment is provided with an insertion hole 30 into which the male crimp terminal 200 is inserted, and an insertion hole 20 into which the female crimp terminal 100 corresponding to the male crimp terminal 200 is inserted. Therefore, the two crimp terminals 200 and 100 of the male and female types can be inspected by 1 terminal inspection device 1.
[ 1 st modification of embodiment ]
A modification 1 of the embodiment will be described. FIG. 17 is an explanatory view of the crimp width and the crimp height; fig. 18 is a diagram showing a measurement device according to a modification 1 of the embodiment; fig. 19 is a diagram for explaining a measurement method performed by the measurement device according to variation 1 of the embodiment. As shown in fig. 18 and 19, the terminal inspection apparatus 1 according to the first modification of the embodiment is configured to be capable of measuring the size of the crimp terminal 100 by the measuring apparatus 40. Fig. 18 and 19 show the sectional shape of the female terminal inspection part 2, but the sectional shape of the male terminal inspection part 3 is also the same.
The measuring device 40 includes a main body 41, a movable portion 42, a screw 43, and a scale portion 44. The body 41 is a columnar or plate-like member. An abutment surface 41a is formed on the distal end side of the body 41. The main body 41 is provided with a protruding portion 41b protruding from the abutment surface 41 a. The body 41 is provided with a height scale 45. The movable portion 42 is a columnar or plate-like member. The movable portion 42 faces the main body 41 and is movable relative to the main body 41 in the facing direction. The body 41 is formed with a female screw portion corresponding to the screw 43. The screw 43 is screwed into the female screw portion of the main body 41, and its tip protrudes from the main body 41. The tip of the screw 43 is connected to the movable portion 42. The screw 43 is coupled to the movable portion 42 so as to be able to rotate without moving in the axial direction. That is, the movable portion 42 moves together with the screw 43 in the axial direction of the screw 43.
The scale portion 44 is fixed to the movable portion 42. The scale portion 44 is provided with a width scale 46. In addition, a base line 47 corresponding to the width scale 46 is provided on the main body 41. When the screw 43 rotates around the shaft, the screw 43, the movable portion 42, and the scale portion 44 move relative to the main body 41 in the axial direction of the screw 43.
The female terminal inspection portion 2 is provided with recesses 23b and 23 c. The recesses 23b and 23c are arranged on the extension line of the confirmation hole 23. The protrusion 41b of the main body 41 is inserted into the recess 23 b. The distal end portion of the movable portion 42 is inserted into the recess 23 c. The width of the recess 23c is determined so that the movable portion 42 can move in the width direction.
The measuring device 40 measures the crimp width C/W and the crimp height C/H of the crimp terminal 100. As shown in fig. 17, the crimp width C/W is the dimension of the wire connecting portion 12 in the second direction W. The crimp height C/H is the dimension of the wire connecting portion 12 in the third direction H. As shown by arrow Y2 in fig. 19, the measuring device 40 inserts the contact surface 41a into the confirmation hole 23 in contact with the wire connecting portion 12. The main body 41 sandwiches the electric wire connecting portion 12 with the wall surface of the insertion hole 20. The inspector reads the value H1 of the crimp height C/H from the height scale 45 with the wire connecting portion 12 sandwiched between the body 41 and the wall surface of the insertion hole 20.
Further, the inspector turns the screw 43 to sandwich the electric wire connecting portion 12 between the protruding portion 41b of the main body 41 and the movable portion 42. The inspector reads the value W1 of the crimp width C/W from the position indicated by the base line 47 of the width scale 46.
According to the measuring device 40 of the present modification, the position and the angle of contact of the measuring device 40 with the wire connecting portion 12 are determined based on the confirmation hole 23 of the terminal inspection device 1. Therefore, the contact form between the measuring device 40 and the wire connecting portion 12 is less likely to vary between individuals. Further, the dimension inspection of the crimp width C/W and the crimp height C/H is simplified, and the number of steps for the dimension inspection is reduced. The measuring device 40 of the present modification example can also be applied to the male crimp terminal 200.
[ 2 nd modification of embodiment ]
The structures of the insertion holes 20 and 30 and the confirmation holes 23 and 33 are not limited to those illustrated. For example, the sectional shape of the insertion holes 20 and 30 may be appropriately changed according to the shape of the crimp terminal to be inspected. The locking portions 27, 37 may be portions different from the inner wall surfaces of the confirmation holes 23, 33. The confirmation holes 23 and 33 may be provided as appropriate so that whether or not the stabilizers 14 and 64 are locked to the locking portions 27 and 37 can be visually checked from the outside.
The contents disclosed in the above embodiments and modifications can be implemented in appropriate combinations.
Claims (5)
1. A terminal inspection device, comprising:
an insertion hole formed in the body, for allowing insertion of a crimp terminal crimped with a core wire of an electric wire in a cylindrical shape, the crimp terminal having an error from a standard shape of a predetermined amount or less;
a locking portion provided at a predetermined depth position of the insertion hole and locking a protrusion protruding from the crimp terminal in a direction orthogonal to an insertion direction of the crimp terminal into the insertion hole;
a confirmation hole formed in the body, communicating with the insertion hole, and from which a state in which the protrusion of the crimp terminal is locked by the locking portion provided in the insertion hole can be visually observed,
the insertion hole is continuously provided from an insertion port opened at a surface of the main body to a projection port opened at a rear surface of the main body, and a distal end portion of the crimp terminal projects from the projection port toward an outer space of the main body when the crimp terminal is inserted from the insertion port to the insertion hole,
the confirmation hole communicates a portion of the insertion hole where the locking portion is formed with an external space of the body so that the locking portion can be visually observed from outside the body.
2. The terminal inspection device according to claim 1,
the locking portion is an inner wall surface of the confirmation hole.
3. The terminal inspection device according to claim 1 or 2,
a guide groove for guiding the protruding portion is formed on an entrance side of the insertion hole with respect to the locking portion,
the insertion hole allows insertion of the crimp terminal with the protruding portion of the inserted crimp terminal facing the guide groove.
4. The terminal inspection device according to claim 1 or 2,
the insertion holes into which the male crimp terminals are inserted and the insertion holes into which the female crimp terminals corresponding to the male crimp terminals are inserted are provided in the main body, respectively.
5. The terminal inspection device according to claim 3,
the insertion holes into which the male crimp terminals are inserted and the insertion holes into which the female crimp terminals corresponding to the male crimp terminals are inserted are provided in the main body, respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016224395A JP6453834B2 (en) | 2016-11-17 | 2016-11-17 | Terminal inspection device |
| JP2016-224395 | 2016-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108106521A CN108106521A (en) | 2018-06-01 |
| CN108106521B true CN108106521B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711136790.6A Active CN108106521B (en) | 2016-11-17 | 2017-11-16 | Terminal inspection device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6453834B2 (en) |
| CN (1) | CN108106521B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917569B (en) * | 2018-08-14 | 2022-07-12 | 丹东英普亿塑胶电子有限公司 | Method for detecting deformation of special-shaped terminal of automobile sound equipment by using jig |
| CN111043934A (en) * | 2018-10-12 | 2020-04-21 | 昆山华复精密金属有限公司 | Size detection device |
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| JP2005003518A (en) * | 2003-06-12 | 2005-01-06 | Yazaki Corp | Terminal inspecting holder |
| CN102072907A (en) * | 2009-11-19 | 2011-05-25 | 住友电装株式会社 | Appearance examining device for cylindrical crimp terminal |
| CN102474061A (en) * | 2009-07-10 | 2012-05-23 | 矢崎总业株式会社 | Terminal crimping apparatus |
| CN102804523A (en) * | 2009-06-22 | 2012-11-28 | 矢崎总业株式会社 | Electric Wire And Terminal Crimp Portion Evaluating Method And Crimp Portion Evaluating Device |
| CN105244650A (en) * | 2014-07-07 | 2016-01-13 | 矢崎总业株式会社 | Connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555799A (en) * | 1983-10-24 | 1985-11-26 | Sumitomo Electric Industries, Ltd. | Method for inspecting crimp bonded terminals |
| JPH043206Y2 (en) * | 1985-05-17 | 1992-02-03 | ||
| JPH09139272A (en) * | 1995-11-16 | 1997-05-27 | Sumitomo Wiring Syst Ltd | Terminal gauge |
| JP2002202338A (en) * | 2000-12-28 | 2002-07-19 | Sumitomo Wiring Syst Ltd | Connector inspection unit and connector inspecting device using the same |
| JP5029151B2 (en) * | 2007-06-06 | 2012-09-19 | オムロン株式会社 | connector |
| JP5691899B2 (en) * | 2011-07-07 | 2015-04-01 | 住友電装株式会社 | Relay connector |
| JP6006575B2 (en) * | 2012-07-31 | 2016-10-12 | タイコエレクトロニクスジャパン合同会社 | connector |
| CN203260771U (en) * | 2012-12-12 | 2013-10-30 | 深圳市联益电子有限公司 | Connector terminal |
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2016
- 2016-11-17 JP JP2016224395A patent/JP6453834B2/en active Active
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- 2017-11-16 CN CN201711136790.6A patent/CN108106521B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003518A (en) * | 2003-06-12 | 2005-01-06 | Yazaki Corp | Terminal inspecting holder |
| CN102804523A (en) * | 2009-06-22 | 2012-11-28 | 矢崎总业株式会社 | Electric Wire And Terminal Crimp Portion Evaluating Method And Crimp Portion Evaluating Device |
| CN102474061A (en) * | 2009-07-10 | 2012-05-23 | 矢崎总业株式会社 | Terminal crimping apparatus |
| CN102072907A (en) * | 2009-11-19 | 2011-05-25 | 住友电装株式会社 | Appearance examining device for cylindrical crimp terminal |
| CN105244650A (en) * | 2014-07-07 | 2016-01-13 | 矢崎总业株式会社 | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6453834B2 (en) | 2019-01-16 |
| JP2018081031A (en) | 2018-05-24 |
| CN108106521A (en) | 2018-06-01 |
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