Digital tension testing machine for terminal production detection

Abstract

The utility model discloses a digital tension tester for terminal production detection, which belongs to the field of terminal tension testers and is characterized in that a buffer spring is arranged at the upper end of a movable plate, the buffer spring is fixed with a buffer clamping seat, a lead terminal is propped against the inner top wall of the buffer clamping seat through the movable plate and the buffer spring when being pulled, a rubber ring is arranged at a semi-ring fixing seat, and the rubber ring is fixed on the inner top wall of the buffer clamping seat. Buffering protection of the connecting position of the wire terminal and the wire harness is improved through the rubber ring, the buffering spring and the movable plate. Through cooperative work of the first clamp, the second clamp, the buffer clamping seat and the semi-ring fixing seat, stable clamping of a wire terminal and a wire harness in a tension test is ensured, and test errors or damage are prevented. The movable plate and the spring in the buffer clamping seat effectively buffer the tensile force, and the rubber ring further protects the joint. The clamping mechanism design fully considers the stability and protectiveness, accurately reflects the performance, and ensures the accuracy of the test result. Optimized design improves test efficiency, and stable design prolongs the service life of equipment.

Description

Technical Field

[0001] The utility model relates to the field of terminal tensile testing machines, in particular to a digital tensile testing machine for terminal production detection. Background Art

[0002] Digital tensile testing machines for terminal inspection are specifically designed to accurately measure the pull-out force of crimped terminals, the tear-off force of soldered terminals, and the pull-out force of waterproof plugs. However, current equipment faces a major challenge during testing: the inherent fragility of plastic terminals.

[0003] First, because plastic terminals have low tensile strength, they easily deform or even break when subjected to tension. This presents significant challenges for our testing, as during the application of force, it is difficult to accurately determine the terminal's ability to withstand stress under normal operating conditions, and the test itself could potentially cause irreparable damage to the terminal.

[0004] Secondly, this damage not only affects the accuracy of test results but can also lead to misjudgments of product quality. If a terminal breaks or deforms during testing, the test data becomes invaluable and no longer reflects the terminal's performance in actual applications. This can mislead subsequent product design and production.

[0005] Furthermore, damaged terminals need to be replaced or repaired, which undoubtedly increases downtime and labor costs during the testing process. If the number of damaged terminals is large, the entire batch of products may need to be retested, which undoubtedly further increases testing time and cost. Utility Model Content

[0006] The main purpose of the utility model is to provide a digital tensile testing machine for terminal production inspection, which can effectively solve the problems raised in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A digital tensile testing machine for terminal production inspection includes a machine base, a column, a mobile assembly, a tensile assembly, a first clamp, a second clamp, a wiring harness, and a wire terminal. The mobile assembly and the machine base are respectively mounted on the upper and lower ends of the column, the tensile assembly is mounted on the mobile assembly, the second clamp is mounted on the machine base, the first clamp is mounted on the lower end of the tensile assembly, and the first clamp and the second clamp bracket clamp the wiring harness.

[0009] The clamping end of the first clamp is equipped with a buffer fixing seat, and the clamping end of the second clamp is equipped with a buffer clamping seat. The upper ends of the two buffer clamping seats are provided with a semi-ring fixing seat forming a circular ring. The wire terminal is embedded in the inner cavity of the buffer clamping seat, and the wiring harness extends from the opening of the semi-ring fixing seat.

[0010] The inner wall of the buffer clamping seat is provided with a movable plate for protecting the wire terminal, and the upper end of the movable plate is provided with a buffer spring, which is fixed to the buffer clamping seat. When the wire terminal is pulled, it is pressed against the inner top wall of the buffer clamping seat through the movable plate and the buffer spring. A rubber ring is provided at the semi-ring fixed seat, and the buffer protection of the connection between the wire terminal and the wiring harness is enhanced through the rubber ring, the buffer spring and the movable plate.

[0011] Optionally, a rubber gasket is provided on the side wall of the buffer fixing seat, and the rubber gasket is adhesively fixed to the inner wall of the buffer clamping seat, and the rubber gasket contacts the wire terminal and protects the side wall of the wire terminal;

[0012] Optionally, the buffer clamping seat is composed of two "U"-shaped limiting seats, and the buffer clamping seat is fixed to the clamping end of the second clamp by bolts, and the buffer clamping seat is designed as an integral whole with the semi-ring fixing seat;

[0013] Optionally, the semi-ring fixing seat is bonded to the rubber ring on its inner wall, and the two rubber rings are designed in a "C" shape;

[0014] Optionally, a plurality of the buffer springs are equidistantly distributed on the movable plate, a rubber strip is adhered to the lower end of the movable plate, and the rubber strip contacts the edge of the wire terminal;

[0015] Optionally, the buffer fixing seat is fixed to the first clamp by means of bolts, and an anti-slip strip is provided on the inner wall of the buffer fixing seat, and the anti-slip strip abuts against the end of the wiring harness.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the coordinated operation of the first and second clamps, as well as the circular ring structure formed by the buffer clamping seat and the semi-ring fixing seat, ensures that the wire terminal and the wiring harness can be stably clamped during the tensile test, preventing test errors or damage caused by unstable clamping. The combined design of the movable plate and buffer spring inside the buffer clamping seat can provide effective buffering when the wire terminal is subjected to tension, avoiding damage to the wire terminal caused by direct impact. At the same time, the rubber ring at the semi-ring fixing seat further enhances this buffering effect, providing additional protection for the connection between the wire terminal and the wiring harness.

[0018] Because the clamping mechanism is designed with stability and protection in mind, it accurately reflects the performance of the wire terminals and wiring harness during testing, avoiding test errors caused by unstable clamping or insufficient protection, and ensuring the accuracy and reliability of test results. By optimizing the design of the clamping and protection mechanisms, clamping and testing operations can be completed more quickly and accurately during testing, improving testing efficiency. The robust design of the clamping and protection mechanisms ensures that the equipment maintains excellent performance during extended use, extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a front view of the overall structure of the utility model;

[0021] Figure 3 This is a diagram showing the tension assembly, clamp, wiring harness and wire terminal of the utility model;

[0022] Figure 4 This is a diagram showing the fixture, wiring harness, and wire terminals of the present invention;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of point A in the middle.

[0024] In the figure: 1. Machine base; 2. Column; 3. Moving assembly; 4. Tension assembly; 5. First clamp; 6. Second clamp; 7. Wiring harness; 8. Buffer clamping seat; 9. Buffer fixing seat; 10. Semi-ring fixing seat; 11. Movable plate; 12. Buffer spring; 13. Rubber gasket; 14. Wire terminal. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example

[0026] like Figures 1 to 5 As shown, this embodiment provides a digital tensile testing machine for terminal production inspection, whose key components include a machine base 1, a column 2, a moving assembly 3, a tensile assembly 4, a first clamp 5, a second clamp 6, a wiring harness 7 and a wire terminal 14. The moving assembly 3 and the machine base 1 are respectively firmly mounted on the upper and lower ends of the column 2, while the tensile assembly 4 is precisely mounted on the moving assembly 3. A second clamp 6 is installed at a specific position of the machine base 1 for clamping operation. The first clamp 5 is installed at the lower end of the tensile assembly 4, which works in conjunction with the second clamp 6 to clamp the wiring harness 7.

[0027] In terms of detailed design, the clamping end of the first clamp 5 is cleverly equipped with a buffered fixing seat 9 to enhance clamping stability and protection. Simultaneously, the clamping end of the second clamp 6 is equipped with a buffered clamping seat 8, a design that allows for more precise clamping and adjustment. The upper ends of the two buffered clamping seats 8 are equipped with a semi-ring fixing seat 10, which together form a circular ring structure. The wire terminal 14 is precisely embedded in the inner cavity of the buffered clamping seat 8, while the wire harness 7 smoothly extends out from the opening of the semi-ring fixing seat 10.

[0028] The inner wall of the buffer holder 8 is equipped with a movable plate 11, which is a key measure to protect the wire terminal 14. The upper end of the movable plate 11 is equipped with a buffer spring 12, which is firmly fixed to the buffer holder 8. When the wire terminal 14 is subjected to tension, the movable plate 11 and the buffer spring 12 act to gently press against the inner top wall of the buffer holder 8, thus preventing direct impact and damage. In addition, the semi-ring fixing seat 10 is equipped with a rubber ring. These rubber rings work together with the buffer spring 12 and the movable plate 11 to provide additional buffering protection for the connection between the wire terminal 14 and the wiring harness 7.

[0029] The buffer clamping seat 8 consists of two U-shaped restraining seats, securely fastened to the clamping end of the second clamp 6 by bolts. Notably, the buffer clamping seat 8 and the semi-ring fixing seat 10 are integrated into one body, enhancing overall stability and reliability. The semi-ring fixing seat 10 is bonded to a rubber ring on its inner wall. These two rubber rings form a C-shaped design, further enhancing clamping stability and sealing.

[0030] Furthermore, multiple buffer springs 12 are evenly spaced across the movable plate 11, ensuring uniform and stable buffering. Rubber strips are bonded to the lower end of the movable plate 11, tightly contacting the edges of the wire terminals 14 and providing additional protection and cushioning. The buffer holder 9 is also bolted to the first fixture 5. Its inner wall is fitted with anti-slip strips that firmly contact the ends of the wiring harness 7, preventing them from slipping or falling off during testing. Example

[0031] Based on the first embodiment, this embodiment further optimizes and improves the testing machine. While retaining the original structure and functions, this embodiment adds rubber gaskets 13 to the side walls of the buffer holder 9. These rubber gaskets 13 are bonded to the inner wall of the buffer holder 8 and tightly contact the wire terminals 14, providing additional sidewall protection. This design further enhances the stability and reliability of the testing machine during testing, ensuring the accuracy and reliability of test results.

[0032] Based on the description provided in Example 1, regarding the terminal clamping process of the digital tensile testing machine, in order to ensure that pulling damage does not occur, the following is a detailed explanation of its clamping process and key components, while also emphasizing the requirement of numbers after proper nouns:

[0033] Terminal clamping process: Fix one end of the wire harness 7 in the buffer clamping seat 8 of the second fixture 6. The wire terminal 14 is accurately embedded in the inner cavity of the buffer clamping seat 8, ensuring that the wire harness 7 extends smoothly from the opening of the semi-ring fixing seat 10.

[0034] The tensile testing machine is activated, and moving assembly 3 drives tensile assembly 4 and first clamp 5 downward. The clamping end of first clamp 5, in conjunction with its built-in buffer holder 9, firmly grips the other end of wire harness 7. At this point, wire terminal 14 is precisely positioned between the two clamps.

[0035] The tension assembly 4 applies tension, which in turn acts on the wire harness 7 and the lead terminal 14. When subjected to tension, the movable plate 11 within the buffer clamp 8 cushions the lead terminal 14 through the action of the buffer spring 12, protecting it from direct impact. The rubber ring of the semi-ring mount 10, the buffer spring 12, and the movable plate 11 work together to provide additional cushioning protection at the connection between the lead terminal 14 and the wire harness 7.

[0036] After the tension test is completed, the tension assembly 4 is withdrawn, releasing the wiring harness 7 and the lead terminal 14. The first clamp 5 and the second clamp 6 respectively release their clamping of the wiring harness 7.

[0037] The first clamp 5 cooperates with the tension component 4 to clamp the other end of the wiring harness 7. The second clamp 6 is equipped with a buffer clamping seat 8, which is used to clamp the connection between the wire terminal 14 and the wiring harness 7. The inner wall of the buffer clamping seat 8 is equipped with a movable plate 11 and a buffer spring 12 to provide a buffering effect during the tension test. The movable plate 11 cooperates with the buffer spring 12 to provide a buffer for the wire terminal 14. The buffer spring 12 ensures the uniformity and stability of the buffering. The semi-ring fixing seat 10 cooperates with the buffer clamping seat 8 to form a circular ring structure to enhance the clamping stability. The rubber ring is located at the semi-ring fixing seat 10 to provide additional buffering protection. The digital tensile testing machine can effectively prevent the wire terminal 14 and the wiring harness 7 from being damaged due to excessive tension during the test.

[0038] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the electric fusion connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0039] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A digital tensile testing machine for terminal production inspection, comprising a machine base (1), a column (2), a moving assembly (3), a tensile assembly (4), a first clamp (5), a second clamp (6), a wiring harness (7) and a wire terminal (14), wherein the moving assembly (3) and the machine base (1) are respectively mounted on the upper and lower ends of the column (2), the tensile assembly (4) is mounted on the moving assembly (3), the second clamp (6) is mounted on the machine base (1), the lower end of the tensile assembly (4) is mounted on the first clamp (5), the first clamp (5) and the second clamp (6) bracket clamp the wiring harness (7), and the invention is characterized in that: The clamping end of the first clamp (5) is provided with a buffer fixing seat (9), the clamping end of the second clamp (6) is provided with a buffer clamping seat (8), the upper ends of the two buffer clamping seats (8) are provided with a semi-ring fixing seat (10) forming a circular ring, the wire terminal (14) is embedded in the inner cavity of the buffer clamping seat (8), and the wire harness (7) extends out from the opening of the semi-ring fixing seat (10); The inner wall of the buffer clamping seat (8) is provided with a movable plate (11) for protecting the wire terminal (14), and the upper end of the movable plate (11) is provided with a buffer spring (12), and the buffer spring (12) is fixed to the buffer clamping seat (8). When the wire terminal (14) is pulled, it is pressed against the inner top wall of the buffer clamping seat (8) through the movable plate (11) and the buffer spring (12). A rubber ring is provided at the semi-ring fixed seat (10), and the buffer protection at the connection between the wire terminal (14) and the wiring harness (7) is lifted through the rubber ring, the buffer spring (12) and the movable plate (11).

2. A digital tensile testing machine for terminal production inspection according to claim 1, characterized in that: The side wall of the buffer fixing seat (9) is provided with a rubber gasket (13), which is bonded and fixed to the inner wall of the buffer clamping seat (8), and the rubber gasket (13) contacts the wire terminal (14) and protects the side wall of the wire terminal (14).

3. A digital tensile testing machine for terminal production inspection according to claim 1 or 2, characterized in that: The buffer clamping seat (8) is composed of two "U"-shaped limiting seats. The buffer clamping seat (8) is fixed to the clamping end of the second clamp (6) by bolts. The buffer clamping seat (8) is designed as an integral whole with the semi-ring fixing seat (10).

4. A digital tensile testing machine for terminal production inspection according to claim 3, characterized in that: The semi-ring fixing seat (10) is bonded to the rubber ring on its inner wall, and the two rubber rings are designed in a "C" shape.

5. The digital tensile testing machine for terminal production inspection according to claim 4, characterized in that: The plurality of buffer springs (12) are equidistantly distributed on the movable plate (11), and a rubber strip is bonded to the lower end of the movable plate (11), and the rubber strip contacts the edge of the wire terminal (14).

6. The digital tensile testing machine for terminal production inspection according to claim 5, characterized in that: The buffer fixing seat (9) is fixed to the first clamp (5) by means of bolts, and an anti-slip strip is provided on the inner wall of the buffer fixing seat (9), and the anti-slip strip abuts against the end of the wiring harness (7).

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