Terminal pin deformation detection device

Abstract

The utility model relates to the field of terminal detection equipment, in particular to terminal pin deformation detection equipment. Comprising a terminal jig and a detection assembly. Wherein the surface of the terminal jig is provided with a carrying cavity, and the carrying cavity is used for positioning a terminal and enabling the top end of a pin of the terminal to be exposed; the detection assembly is provided with a probe and a blocking mechanism; the blocking mechanism is arranged around the probe and comprises a body, a blocking groove is formed in the body, and the width of the blocking groove is not larger than a first extreme value; a blocking piece is fixed in the blocking groove, the top end of the blocking piece makes contact with the middle of the probe, and the thickness of the blocking piece is not smaller than a second extreme value. According to the invention, the blocking groove and the blocking sheet in the blocking mechanism cooperate with each other, and the distance between two points on the outer wall and two points on the inner wall of the pin bifurcation structure is detected. And automatic feedback of a pin deformation quantity detection result is realized by combining whether a probe-pin-receiving end current loop is formed or not.

Description

Technical Field

[0001] This utility model relates to the field of terminal testing equipment, and in particular to a terminal pin deformation testing device. Background Technology

[0002] In the field of electronic connector manufacturing, Y-shaped bifurcated pins mounted on terminals are typically formed by stamping thin metal sheets. Due to material properties and manufacturing process limitations, the pins are susceptible to mechanical forces (such as stamping, vibration, and transmission collisions) during terminal assembly, causing the bifurcated structure to deform outward or inward. When the deformation is too great, the pin will fail to achieve a stable electrical connection. Traditional inspection methods rely on manual visual inspection or simple continuity tests, which are inefficient, have a high rate of missed detections, and cannot accurately quantify the deformation range. This leads to defective products flowing into subsequent stages, increasing rework costs and even jeopardizing the reliability of end products. Therefore, there is an urgent need for an automated, high-precision deformation detection device to identify the deformation state of the pin bifurcated structure in real time during the manufacturing process, ensuring product quality. Utility Model Content

[0003] The purpose of this invention is to provide a terminal pin deformation detection device to solve the problem that the degree of pin deformation on terminals is difficult to detect in the prior art.

[0004] The technical solution of this utility model is: a terminal pin deformation detection device, comprising:

[0005] A terminal fixture having a mounting cavity on its surface for positioning terminals and exposing the tips of the terminal pins;

[0006] The detection component includes a probe and a blocking mechanism;

[0007] The blocking mechanism is arranged around the probe and includes a body. The body has a blocking groove, and the width of the blocking groove is not greater than a first extreme value.

[0008] A blocking plate is fixed inside the blocking groove. The top of the blocking plate contacts the middle of the probe. The thickness of the blocking plate is not less than the second extreme value.

[0009] Preferably, the device includes a support, on which a drive mechanism is provided. The actuator of the drive mechanism is connected to a detection component or a terminal fixture, and is used to drive the detection component and the terminal fixture to move closer or further apart.

[0010] Preferably, the probe is capable of emitting an electrical signal, and the terminal fixture is provided with a receiving end, which is provided corresponding to the pin and electrically connected to the pin; when the probe abuts against the pin, the electrical signal emitted by it can be received by the receiving end through the pin.

[0011] Preferably, the driving mechanism is a cylinder, which drives the detection component to move linearly in a direction perpendicular to the terminal fixture.

[0012] Preferably, the probe includes a probe rod and a probe head, which are connected by an elastic element. When the probe head is subjected to an external axial force, it can compress the elastic element and displace along the axial direction.

[0013] Preferably, the receiver is configured as another probe.

[0014] Preferably, the detection components and terminal fixtures are configured in multiple ways.

[0015] Compared with the prior art, the advantages of this utility model are: This application uses the blocking groove and blocking plate in the blocking mechanism to cooperate in detecting the distance between two points on the outer wall and two points on the inner wall of the pin fork structure, respectively. Furthermore, it achieves automated feedback of the pin deformation detection results by combining the formation of a probe-pin-receiving current loop. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a first-view structural diagram of the terminal pin deformation detection device of this utility model;

[0018] Figure 2 This is a second-view structural diagram of the terminal pin deformation detection device of this utility model;

[0019] Figure 3 for Figure 1 A-direction view;

[0020] Figure 4 This is a diagram showing the positional relationship between the blocking plate and the probe described in this utility model;

[0021] Figure 5 This is a schematic diagram of the two detection ends on the pin described in this utility model;

[0022] The components are: 1. bracket, 2. terminal fixture, 3. detection assembly, 31. probe, 311. probe rod, 312. probe, 32. blocking mechanism, 321. body, 322. blocking groove, 323. blocking plate, and 4. driving mechanism. Detailed Implementation

[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The terminal described in this application has a pin installed inside. The head of the pin is designed with a Y-shaped forked structure. Because the pin is made of a thin metal sheet, it is easily deformed by impact during the terminal manufacturing process. When the deformation exceeds a certain level, the pin will become unusable. Therefore, this application provides a terminal pin deformation detection device to detect the deformation of the pin during the terminal manufacturing process, thereby promptly repairing or scrapping defective products.

[0026] The present invention will be further described in detail below with reference to specific embodiments:

[0027] like Figure 1 and Figure 2 As shown, a terminal pin deformation detection device includes a bracket 1, on which a terminal fixture 2 and a detection component 3 are mounted. The terminal fixture 2 has a mounting cavity, allowing the pins on the terminal to be exposed at their tips when the terminal is placed in the mounting cavity.

[0028] A drive mechanism 4 is also provided on the bracket 1. In this embodiment, the drive mechanism 4 is a cylinder. The detection component 3 can move toward the pin on the terminal fixture 2 under the drive of the drive mechanism 4.

[0029] Combination Figure 3 and Figure 4As shown, the detection component 3 includes a probe 31, which can emit electrical signals. A blocking mechanism 32 is arranged around the probe 31. When the head of the pin maintains a normal forked structure, the pin can pass through the blocking mechanism 32 and contact the probe 31. At this time, the electrical signal emitted by the probe 31 can be transmitted through the pin itself to the receiving end installed at the corresponding pin tail on the terminal fixture 2. When the central control device detects the electrical signal at the receiving end, it can determine that the pin shape is normal. Conversely, if the head of the pin exceeds the maximum deformation, it will collide with the blocking mechanism 32 when the detection component 3 moves, preventing it from contacting the probe 31. This prevents the central control device from detecting the electrical signal at the receiving end, thus triggering an alarm. The receiving end can be constructed as another probe 31.

[0030] Combination Figure 5 As shown, this application mainly detects the distance between two points (a and a') on the outer wall and two points (b and b') on the inner wall of the pin bifurcation structure, so that they are not greater than the first extreme value or not less than the second extreme value, respectively.

[0031] Specifically, for the detection of the first extreme value: the blocking mechanism 32 includes a body 321, the body 321 has a blocking groove 322 corresponding to the pin located on the terminal fixture 2, and the probe 31 is embedded in the blocking groove 322.

[0032] The width of the blocking groove 322 is set to the first extreme value. If the distance between two points on the outer wall of the pin fork structure is greater than the first extreme value, the pin will collide with the bottom of the body 321 when the blocking groove 322 moves toward the pin along with the body 321, thus failing to enter the blocking groove 322 and thus failing to make electrical contact with the probe 31.

[0033] If the pin successfully enters the blocking groove 322, it is necessary to check whether the distance between two points on the inner wall of the pin's bifurcated structure is less than the second extreme value: a blocking plate 323 is provided in the body 321. The blocking plate 323 is a thin plate structure in a vertical plane. The top of the blocking plate 323 abuts against the middle of the probe 31, and the bottom is embedded and fixed in the body 321.

[0034] If the distance between two points on the inner wall of the pin branch structure entering the blocking groove 322 is less than the second extreme value, the pin will collide with the blocking plate 323 and thus will not be able to contact the probe 31. If the distance between two points on the inner wall of the pin branch structure is greater than the second extreme value, the blocking plate 323 will enter the pin branch, and the two forked ends of the pin will avoid the blocking plate 323 and contact the probe 31.

[0035] Furthermore, the probe 31 in this application includes a probe rod 311 and a probe 312, with an elastic element built into the probe rod 311 and the probe 312. In this embodiment, the elastic element is a spring. When the probe 31 abuts against the pin, the probe 312 can move towards the probe rod 311 by compressing the elastic element. This makes the contact force between the pin and the probe 31 gentle, thereby reducing the impact of collisions on the pin during the detection process.

[0036] In a preferred embodiment of this application, such as Figure 1 and Figure 2 As shown, the detection component 3 and the terminal fixture 2 are configured as a pair, so that the two terminals can be detected simultaneously.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A terminal pin deformation detection device, characterized in that, include: Terminal fixture (2) has a mounting cavity on its surface, which is used to position the terminal and expose the pin tip of the terminal. The detection component (3) has a probe (31) and a blocking mechanism (32); The blocking mechanism (32) is arranged around the probe (31) and includes a body (321). A blocking groove (322) is provided on the body (321), and the width of the blocking groove (322) is not greater than the first extreme value. A blocking plate (323) is fixed inside the blocking groove (322). The top of the blocking plate (323) contacts the middle of the probe (31). The thickness of the blocking plate (323) is not less than the second extreme value.

2. The terminal pin deformation detection device according to claim 1, characterized in that, Includes a bracket (1), on which a drive mechanism (4) is provided. The execution end of the drive mechanism (4) is connected to the detection component (3) or the terminal fixture (2) for driving the detection component (3) and the terminal fixture (2) to move closer or further away from each other.

3. The terminal pin deformation detection device according to claim 2, characterized in that, The probe (31) can emit an electrical signal. The terminal fixture (2) is provided with a receiving end, which is provided corresponding to the pin and electrically connected to the pin. When the probe (31) comes into contact with the pin, the electrical signal emitted by it can be received by the receiving end through the pin.

4. The terminal pin deformation detection device according to claim 2, characterized in that, The driving mechanism (4) is a cylinder, which drives the detection component (3) to move linearly in a direction perpendicular to the terminal fixture (2).

5. The terminal pin deformation detection device according to claim 1, characterized in that, The probe (31) includes a probe rod (311) and a probe (312). The probe rod (311) and the probe (312) are connected by an elastic element. When the probe (312) is subjected to an external axial force, it can compress the elastic element and move axially.

6. The terminal pin deformation detection device according to claim 3, characterized in that, The receiver is constructed as another probe (31).

7. The terminal pin deformation detection device according to claim 1, characterized in that, The detection component (3) and the terminal fixture (2) are configured in multiple ways.

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