A method and mold for testing the tensile force of tubular terminals

Abstract

The present invention relates to a method and a mold for testing the tensile force of a tubular terminal, which is characterized by comprising: a ring-shaped hanger (7), the ring-shaped hanger (7) comprising a wire outlet opening (6), a semi-ring tensile test mold (3) sliding along the inner ring (8) of the ring-shaped hanger (7), the semi-ring tensile test mold (3) comprising at least one clamping hole matching the diameter of the conductor wire (11) of the tensile test wire (5), the tensile test wire (5) stripping the metal wire part of the insulation skin and passing through the wire outlet opening (6), then the conductor wire (11) with the insulation protection area removed is clamped by the clamping hole (9), the terminal insulation skin (2) and the crimped terminal (1) extend into the inner radius of the semi-ring tensile test mold (3), and finally the tester (10) is clamped on the wire bundle (4) with the insulation skin to perform a downward pressure test. The method and mold for testing the tensile force of a tubular terminal can not only meet the standard requirements of the pull-out force, but also ensure the rationality and accuracy of the test.

Description

Technical Field

[0001] The invention is applicable to the tensile force test of all tubular terminals, and in particular relates to a method and a mould for the tensile force test of the tubular terminals. Background Art

[0002] In the current pull-out force testing industry, there is a type of terminal pull-out force test. The traditional test method is Figure 1 The tubular terminal consists of two parts, one is the crimping metal area, and the other is the plastic insulation protection area; terminal crimping is a method in which the metal area is wrapped with the metal wire without insulation skin, and a reliable mechanical connection and electrical connection are formed by crimping tools or equipment. In production, it is necessary to test the force of pulling or pulling the metal wire out of the terminal. The original test method is: after the metal of the clamped terminal is crimped, it is pulled and the pull-out force is tested. The current method cannot truly reflect the actual pull-out force of the terminal assembly sample, and the test value cannot meet the pull-out force standard requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a method and a mold for testing the tensile force of a tubular terminal, which can meet the standard requirements of the pulling force and ensure the rationality and accuracy of the test.

[0004] To solve the above problems, the object of the present invention is achieved in this way. It relates to a method and a mold for tensile testing of tubular terminals, which are characterized by comprising an annular hanger, the annular hanger comprising an outlet opening, a semi-ring tensile testing mold sliding along the inner ring of the annular hanger, the semi-ring tensile testing mold comprising at least one clamping hole matching the conductor wire of the tensile testing wire diameter, the tensile testing wire passes the metal wire portion with the insulation skin stripped off through the outlet opening, and then the conductor wire with the insulation protection zone removed is clamped by the clamping hole, the terminal insulation skin and the terminal after crimping extend into the inner radius of the semi-ring tensile testing mold, and finally the tester is clamped on the wire bundle with insulation skin, and a downward pressure test is performed to complete the pull-out force test of the tubular terminal.

[0005] The semi-ring tensile test mold includes a left half hole part and a right half hole part. The left half hole part and the right half hole part are combined to form a circular clamping hole. The left half hole part and the right half hole part can slide in the inner ring of the annular hanger so that the center of the clamping hole and the outlet opening hole coincide.

[0006] The diameter of the circular clamping hole is equal to the diameter of the conductor wire, or smaller than the diameter of the tension test wire.

[0007] The semi-ring tensile test mold comprises a plurality of circular clamping holes which are distributed at intervals.

[0008] The inner ring of the annular hanger is provided with a slideway, and the semi-ring tensile test mold is limited in the slideway through a connecting piece.

[0009] The strength of the annular hanger is greater than the maximum value of the test pressure of the tester.

[0010] The radius of the multiple circular clamping holes ranges from small to large, and the range is adapted to the diameters of different tension test wires.

[0011] The advantages of the present invention are: a semi-ring tensile test mold sliding along the inner ring of the annular hanger, the semi-ring tensile test mold includes at least one clamping hole matching the conductor wire of the tensile test wire diameter, the tensile test wire passes the metal wire part with the insulation skin stripped through the outlet opening, and then the conductor wire with the insulation protection area removed is clamped by the clamping hole, the terminal insulation skin and the terminal after crimping extend into the inner radius of the semi-ring tensile test mold, and finally the tester is clamped on the wire harness with insulation skin, and a downward pressure test is performed to complete the pull-out force test of the tubular terminal, so that the crimping area can be guaranteed not to be disturbed by external forces during the test process, and the real pull-out force is tested. The rationality and accuracy of the test can be guaranteed.

[0012] The present invention will be further described below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the prior art;

[0014] Figure 2 is a structural diagram of an embodiment of the present invention;

[0015] Figure 3 This is a test mold diagram of Example 1;

[0016] Figure 4 This is a test mold diagram of Example 2.

[0017] In the figure: 1. Terminal after crimping; 2. Terminal insulation; 3. Half-ring tensile test mold; 4. Wire harness with insulation; 5. Tensile test wire; 6. Wire outlet opening; 7. Ring hanger; 8. Inner ring; 9. Clamping hole; 10. Tester; 11. Conductor wire. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and methods adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and methods of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments. Example 1

[0019] like Figure 2As shown, the present invention relates to a method and a mold for tensile testing of tubular terminals, which are characterized by comprising an annular hanger 7, the annular hanger 7 comprising an outlet opening 6, a semi-ring tensile testing mold 3 sliding along the inner ring 8 of the annular hanger 7, the semi-ring tensile testing mold 3 comprising at least one clamping hole 9 matching the conductor wire 11 of the tensile testing wire 5, the metal wire portion of the tensile testing wire 5 stripped of the insulation skin passes through the outlet opening 6, and then the conductor wire 11 with the insulation protection zone removed is clamped by the clamping hole 9, the terminal insulation skin 2 and the crimped terminal 1 extend into the inner radius of the semi-ring tensile testing mold 3, and finally the tester 10 is clamped on the wire harness 4 with the insulation skin, and a downward pressure test is performed to complete the pull-out force test of the tubular terminal.

[0020] like Figure 3 As shown, the half-ring tensile test mold 3 includes a left half hole part and a right half hole part. The left half hole part and the right half hole part are combined to form a circular clamping hole 9. The left half hole part and the right half hole part can slide in the inner ring 8 of the annular hanger 7 so that the center of the clamping hole 9 and the hole of the outlet opening 6 coincide. Example 2

[0021] like Figure 2 As shown, the present invention relates to a method and a mold for tensile testing of tubular terminals, which are characterized by comprising an annular hanger 7, the annular hanger 7 comprising an outlet opening 6, a semi-ring tensile testing mold 3 sliding along the inner ring 8 of the annular hanger 7, the semi-ring tensile testing mold 3 comprising at least one clamping hole 9 matching the conductor wire 11 of the tensile testing wire 5, the tensile testing wire 5 strips the metal wire part of the insulation and passes through the outlet opening 6, and then the conductor wire 11 with the insulation protection zone removed is clamped by the clamping hole 9, the terminal insulation 2 and the crimped terminal 1 extend into the inner radius of the semi-ring tensile testing mold 3, and finally the tester 10 is clamped on the insulated wire harness 4, and a downward pressure test is performed to complete the pull-out force test of the tubular terminal.

[0022] like Figure 4 As shown, the diameter of the circular clamping hole 9 is equal to the diameter of the conductor wire 11 , or smaller than the diameter of the tensile test wire 5 .

[0023] The semi-ring tensile test mold 3 comprises a plurality of circular clamping holes 9 which are spaced apart from each other.

[0024] The inner ring 8 of the annular hanger 7 is provided with a slideway, and the semi-ring tensile test mold 3 is limited in the slideway by a connecting piece.

[0025] The strength of the annular hanger 7 is greater than the maximum value of the test pressure of the tester 10 .

[0026] The radius of the plurality of circular clamping holes 9 ranges from small to large, and the range thereof is adapted to the diameters of different tension test wires 5 .

[0027] Table 1 below gives the 0.25 mm 2 Up to 10mm 2 Results

[0028]

[0029] It is not difficult to see from the table that, compared with different diameters and batches, the tensile force values ​​of the test with the clamp and the test without the clamp are very different. The tensile force value of the test with the clamp is much larger than that of the test without the clamp. Therefore, the present invention provides a real pull-off force, which can ensure the rationality and accuracy of the test.

[0030] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A method for tensile testing of a tubular terminal, characterized in that: Including ring The hoist (7) comprises a wire outlet opening (6), a semi-ring tensile test mold (3) sliding along the inner ring (8) of the ring hoist (7), and the semi-ring tensile test mold (3) comprises at least one clamping hole matching the conductor wire (11) of the tensile test wire (5). The tensile test wire (5) is stripped of the metal wire portion of the insulation skin and passes through the wire outlet opening (6), and then the conductor wire (11) with the insulation protection area removed is clamped by the clamping hole (9). The terminal insulation skin (2) and the crimped The terminal (1) is extended into the inner radius of the semi-ring tensile test mold (3), and finally the tester (10) is clamped on the insulated wire harness (4) to perform a downward pressure test to complete the pull-out force test of the tubular terminal; the semi-ring tensile test mold (3) comprises a left half hole part and a right half hole part, and the left half hole part and the right half hole part are combined to form a circular clamping hole (9), and the left half hole part and the right half hole part can slide on the inner ring (8) of the ring hanger (7) so that the center of the clamping hole (9) and the hole of the outlet opening coincide.

2. A method for tensile testing of a tubular terminal according to claim 1, characterized in that: The diameter of the circular clamping hole (9) is equal to the diameter of the conductor wire (11), or smaller than the diameter of the tensile test wire (5).

3. A method for tensile testing of a tubular terminal according to claim 1, characterized in that: The semi-ring tensile test mold (3) comprises a plurality of circular clamping holes (9) distributed at intervals.

4. A method for tensile testing of a tubular terminal according to claim 1, characterized in that: The inner ring (8) of the annular hanger (7) is provided with a slideway, and the semi-ring tensile test mold (3) is limited in position in the slideway by a connecting piece.

5. A method for tensile testing of a tubular terminal according to claim 1, characterized in that: The strength of the annular hanger (7) is greater than the maximum value of the test pressure of the tester.

6. A method for tensile testing of a tubular terminal according to claim 1, characterized in that: The radius of the plurality of circular clamping holes (9) ranges from small to large, and the range is adapted to the diameters of different tension test wires (5).

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