Device and method for measuring separating force of contact element

Abstract

The invention relates to a contact separating force measuring device and method, and belongs to the field of industrial assembly production testing. The device comprises an outer weight base (1), an outer weight sleeve (2), a separating force weight (3) and a large-diameter sleeve (4), the outer weight base (1) is of a cylindrical structure and is arranged at the bottom, a positioning circular ring is arranged on the outer weight base (1), the separating force weight (3) is arranged above the inner side of the positioning circular ring, the outer weight sleeve (2) is arranged outside the separating force weight (3), and the outer weight sleeve (2) is of a cylindrical structure with an opening in the top. By designing the separating force measuring device which is simple in structure, convenient to use and safe, rapid and effective detection of whether the twist needle meets the separating force quality requirement is realized, a professional force measuring tool is provided for quality control of the twist needle, the risk that the quality of the whole machine is influenced by the quality problem of a contact element of the electric connector is avoided, and the working efficiency is improved. The invention provides a device which is convenient to use and can quickly and effectively carry out testing.

Description

Technical Field

[0001] This invention belongs to the field of industrial assembly production testing, and specifically relates to a device and method for measuring the separation force of contact components. Background Technology

[0002] In electrical connectors, the elastic contact is a critical component, and its structural dimensions directly affect the contact performance. Defect detection of the elastic contact (commonly known as a twisted pin) during incoming inspection is a crucial process affecting product quality; the quality of the component directly impacts the quality of the cable assembly and even the entire guidance module. Therefore, before assembling the J30 electrical connector, the elastic coil portion of the twisted pin needs to be measured. The structure of the twisted pin, a characteristic of elastic coil design, cannot be measured using conventional caliper methods. Qualified twisted pins have a specific range of separation force; excessive or insufficient separation force will affect the quality of the twisted pin. Therefore, it is necessary to invent and design a device to measure this separation force. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problem to be solved by the present invention is how to provide a device and method for measuring the separation force of contact components to solve the problem that the elastic needle cannot be clamped during the measurement process.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, the present invention proposes a device for measuring the separation force of contact components, comprising: an outer weight base 1, an outer weight sleeve 2, a separation force weight 3, and a large-diameter sleeve 4;

[0007] The outer weight base 1 is a cylindrical structure set at the bottom. The outer weight base 1 is provided with a positioning ring. The separation force weight 3 is provided on the upper inner side of the positioning ring. The separation force weight 3 is provided with an outer weight sleeve 2. The outer weight sleeve 2 is a cylindrical structure with an open top.

[0008] The separation force weight 3 is configured as a weight structure with a stepped center hole. A large-diameter sleeve 4 is provided at the center hole at the top of the separation force weight 3. A through hole is opened along the axial direction at the center of the large-diameter sleeve 4. The diameter of the through hole matches the twisted needle to be tested. The outer diameter of the large-diameter sleeve 4 matches the inner diameter of the center hole of the separation force weight 3.

[0009] The outer weight base 1 is used to provide bottom support for the overall device, ensuring that the outer weight sleeve 2 does not shift after assembly.

[0010] The measuring device, based on the equivalent relationship between gravity and separation force, simulates the range of separation force that a twisted needle must withstand through the weight combination of different components.

[0011] When a force equal to the weight of a large-diameter sleeve plus the weight of a separating force weight is applied to a twisted needle, it is equivalent to the minimum separating force of the twisted needle.

[0012] When a force is applied to the twisted needle, consisting of the weight of the large-diameter sleeve, the weight of the separation force weight, the weight of the outer weight sleeve, and the weight of the outer weight base, it is equivalent to the maximum separation force of the twisted needle.

[0013] A method for measuring the separation force of a contact element, the method being implemented using a measuring device, specifically including the following steps:

[0014] Step 1: Tooling assembly;

[0015] Step 2: Install the part to be tested, and insert one end of the twisted needle to be tested into the center hole of the large diameter sleeve 4;

[0016] Step 3: Separation force test. Apply the minimum separation force to the other end of the twisted needle to be tested and observe whether the elastic twisted needle remains connected. If it remains connected, apply the maximum separation force and observe whether the elastic twisted needle meets the separation requirements.

[0017] Step 4: If the twisted needle does not separate under the minimum separating force, but the separation state meets the standard under the maximum separating force, it is judged as qualified; otherwise, it is unqualified.

[0018] Step 1 specifically includes:

[0019] Step 11: Insert the large-diameter sleeve into the center hole of the separation force weight, ensuring proper assembly;

[0020] Step 12: Insert the assembled large-diameter sleeve and separation force weight into the internal space of the outer weight sleeve;

[0021] Step 13: Attach the outer weight set to the outer weight base to complete the overall assembly of the tooling.

[0022] (III) Beneficial Effects

[0023] This invention proposes a device and method for measuring the separation force of contact components. Traditional devices lack adaptability to twisted needle structures and cannot solve the problem of unclamped elastic needles. This fixture is specifically designed to perfectly adapt to the force testing scenarios of twisted needles. Compared with conventional contact component testing tools, which mostly focus on dimensional and appearance inspections and rarely involve specialized measurements of mechanical properties such as separation force, this fixture is a professional separation force measuring device. Through an innovative design of "multi-component weight combination," it achieves precise coverage of the separation force range.

[0024] This invention, while satisfying testing requirements, effectively measures whether the separation force requirement is met through the design of inner and outer core weights. Using this invention, a device design has been created to perform previously impossible test items, and this design is at the leading level in China. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external weight base of the present invention;

[0026] Figure 2 This is a schematic diagram of the outer weight sleeve of the present invention;

[0027] Figure 3 This is a schematic diagram of the separation force weight of the present invention;

[0028] Figure 4 This is a schematic diagram of the large-diameter sleeve of the present invention;

[0029] Figure 5 This is a schematic diagram illustrating the assembly of the present invention. Detailed Implementation

[0030] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0031] This embodiment provides a device for measuring the separation force of a contact element, including: an outer weight base 1, an outer weight sleeve 2, a separation force weight 3, and a large-diameter sleeve 4;

[0032] The outer weight base 1 is a cylindrical structure set at the bottom. The outer weight base 1 is provided with a positioning ring. The separation force weight 3 is provided on the upper inner side of the positioning ring. The separation force weight 3 is provided with an outer weight sleeve 2. The outer weight sleeve 2 is a cylindrical structure with an open top.

[0033] The separation force weight 3 is configured as a weight structure with a stepped center hole. A large-diameter sleeve 4 is provided at the center hole at the top of the separation force weight 3. A through hole is opened along the axial direction at the center of the large-diameter sleeve 4. The diameter of the through hole matches the twisted needle to be tested. The outer diameter of the large-diameter sleeve 4 matches the inner diameter of the center hole of the separation force weight 3.

[0034] The outer weight base 1 is used to provide bottom support for the overall device, ensuring that the outer weight sleeve 2 does not shift after assembly.

[0035] The measuring device, based on the equivalent relationship between gravity and separation force, simulates the range of separation force that a twisted needle must withstand through the weight combination of different components.

[0036] When a force equal to the weight of a large-diameter sleeve plus the weight of a separating force weight is applied to a twisted needle, it is equivalent to the minimum separating force of the twisted needle.

[0037] When a force is applied to the twisted needle, consisting of the weight of the large-diameter sleeve, the weight of the separation force weight, the weight of the outer weight sleeve, and the weight of the outer weight base, it is equivalent to the maximum separation force of the twisted needle.

[0038] A method for measuring the separation force of a contact element, the method being implemented using a measuring device, specifically including the following steps:

[0039] Step 1: Tooling assembly;

[0040] Step 2: Install the part to be tested, and insert one end of the twisted needle to be tested into the center hole of the large diameter sleeve 4;

[0041] Step 3: Separation force test. Apply the minimum separation force to the other end of the twisted needle to be tested and observe whether the elastic twisted needle remains connected. If it remains connected, apply the maximum separation force and observe whether the elastic twisted needle meets the separation requirements.

[0042] Step 4: If the twisted needle does not separate under the minimum separating force, but the separation state meets the standard under the maximum separating force, it is judged as qualified; otherwise, it is unqualified.

[0043] Step 1 specifically includes:

[0044] Step 11: Insert the large-diameter sleeve into the center hole of the separation force weight, ensuring proper assembly;

[0045] Step 12: Insert the assembled large-diameter sleeve and separation force weight into the internal space of the outer weight sleeve;

[0046] Step 13: Attach the outer weight set to the outer weight base to complete the overall assembly of the tooling.

[0047] Example 2:

[0048] The tooling structure is described in this embodiment:

[0049] This fixture consists of four core parts: an outer weight base, an outer weight sleeve, a separation force weight, and a large-diameter sleeve. The structure and function of each component are as follows:

[0050] External weight base ( Figure 1 The base structure with a cavity provides stable bottom support for the entire tooling, ensuring that the external weights do not shift after assembly. It is the basic load-bearing component of the tooling.

[0051] outer weight sleeve ( Figure 2 ): Cylindrical structure, the internal space is used to accommodate the separation force weights and large-diameter sleeves, and its dimensional accuracy ensures the coaxiality of the internal parts, realizing the vertical transmission of force.

[0052] Separation force weights ( Figure 3): The weight structure with a central hole, which fits into a large-diameter sleeve, is a key component in achieving the minimum separation force of the twisted needle, and its weight accuracy is strictly controlled.

[0053] Large diameter sleeve ( Figure 4 ): Columnar structure, which fits into the center hole of the separation force weight. Its weight and the weight of the separation force weight together constitute the minimum separation force of the twisted needle. At the same time, it is the force-bearing component that is in direct contact with the elastic twisted needle. Its size matches the force requirements of the twisted needle.

[0054] Working principle:

[0055] This device, based on the equivalent relationship between gravity and separation force, simulates the range of separation forces that a twisted needle must withstand by combining the weights of different components.

[0056] When the weight of the large-diameter sleeve plus the weight of the separating force weight are applied, it is equivalent to the minimum separating force of a twisted needle.

[0057] When the weight of the large-diameter sleeve, the weight of the separating force weight, the weight of the outer weight sleeve, and the weight of the outer weight base are combined, it is equivalent to the maximum separating force of a twisted needle.

[0058] During testing, the weight combination is used to apply force to the twisted needle elastic twist, and the separation state under minimum and maximum separation forces is observed to determine whether it meets the acceptable range.

[0059] 3. Advanced features and differences

[0060] Advanced features:

[0061] Highly targeted: The special structural design is specifically for the "twisted pin" (elastic contact) of electrical connectors, which solves the problem that the elastic pin has no clamping and the separation force cannot be measured by conventional tools.

[0062] Easy to operate: The tooling consists of a small number of parts, and the assembly and use process is simple, allowing for quick learning and significantly improving testing efficiency.

[0063] Precise Measurement: Through high-precision control of weighted components, the separation force range is accurately simulated, ensuring accurate and reliable test results.

[0064] Safe and reliable: The structural design is stable, with no additional risk of damage during testing, ensuring the safety of both operators and the device under test.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for measuring the separation force of contact components, characterized in that, include: External weight base (1), external weight sleeve (2), separation force weight (3), large diameter sleeve (4); The outer weight base (1) is a cylindrical structure set at the bottom. The outer weight base (1) is provided with a positioning ring. A separation force weight (3) is provided on the upper inner side of the positioning ring. An outer weight sleeve (2) is provided outside the separation force weight (3). The outer weight sleeve (2) is set as a cylindrical structure with an open top. The separation force weight (3) is configured as a weight structure with a stepped center hole. A large-diameter sleeve (4) is provided at the center hole at the top of the separation force weight (3). A through hole is opened along the axial direction at the center of the large-diameter sleeve (4). The diameter of the through hole matches the twist needle to be tested. The outer diameter of the large-diameter sleeve (4) matches the inner diameter of the center hole of the separation force weight (3).

2. The contact separation force measuring device as described in claim 1, characterized in that, The outer weight base (1) is used to provide bottom support for the overall device and ensure that the outer weight sleeve (2) does not shift after assembly.

3. The contact separation force measuring device as described in claim 1, characterized in that, The measuring device, based on the equivalent relationship between gravity and separation force, simulates the range of separation force that a twisted needle must withstand through the weight combination of different components: When a force equal to the weight of a large-diameter sleeve plus the weight of a separating force weight is applied to a twisted needle, it is equivalent to the minimum separating force of the twisted needle. When a force is applied to the twisted needle, consisting of the weight of the large-diameter sleeve, the weight of the separation force weight, the weight of the outer weight sleeve, and the weight of the outer weight base, it is equivalent to the maximum separation force of the twisted needle.

4. A method for measuring the separation force of contact components, characterized in that, The measurement method is implemented based on the measuring device of claim 2, and specifically includes the following steps: Step 1: Tooling assembly; Step 2: Install the part to be tested, and insert one end of the twisted needle to be tested into the center hole of the large diameter sleeve 4; Step 3: Separation force test. Apply the minimum separation force to the other end of the twisted needle to be tested and observe whether the elastic twisted needle remains connected. If it remains connected, apply the maximum separation force and observe whether the elastic twisted needle meets the separation requirements. Step 4: If the twisted needle does not separate under the minimum separating force, but the separation state meets the standard under the maximum separating force, it is judged as qualified; otherwise, it is unqualified.

5. The measuring device for contact separation force as described in claim 4, characterized in that, Step 1 specifically includes: Step 11: Insert the large-diameter sleeve into the center hole of the separation force weight, ensuring proper assembly; Step 12: Insert the assembled large-diameter sleeve and separation force weight into the internal space of the outer weight sleeve; Step 13: Attach the outer weight set to the outer weight base to complete the overall assembly of the tooling.

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