Wire harness test fixture

Abstract

The invention relates to the field of test equipment, in particular to a wire harness test fixture, which structurally comprises a detection seat, a test box and a limiting plate, the test box is in nested connection with the limiting plate, a bottom plate is mounted at the bottom of the limiting plate, a pneumatic interface connected with an air pipe is mounted in the middle of the bottom plate, and a bayonet socket is mounted on the surface of the bottom plate. The base plate is nested and matched with the test box through the bayonet socket and the pneumatic interface, the improved device judges the communication state of the wire harness to be tested through the test box, the regulator is provided with an independent movable mechanism, and when the pneumatic interface is regulated by the regulating handle, the pressure of the regulator can be changed. When tripping is needed, airflow is input into an inner groove in the quick-connecting cavity base, the airflow can move the whole synchronous frame in the axis direction of the movable rod when passing through the quick-connecting cavity base, and the buckling pressure can be reduced; and the interior of the synchronous frame adopts a hollow structure, so that airflow can be introduced through the movable rod, and the tripped wire harness can be ejected through the airflow nozzle.

Description

Technical Field

[0001] The invention relates to a wire harness test fixture, belonging to the field of testing equipment. Background Art

[0002] The wire harness test fixture is a special tool for wire harness testing. It combines the functions of a fixture and a test instrument to improve the efficiency and accuracy of wire harness testing. During use, the connectivity between wire harnesses is detected by plugging.

[0003] Since the terminal itself has a snap connection, the terminal and the female socket are snapped together during the speed measurement process to achieve a stable contact effect. However, this operation will damage the terminal socket during frequent testing, resulting in poor contact in the later stage. At the same time, due to the snap connection of the terminal socket, the efficiency is slow during testing. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a wiring harness test fixture to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a wiring harness test fixture, whose structure includes: a detection seat, an air pipe, the detection seat is connected to an air pump through the air pipe, and a flat cable is installed on the side of the detection seat, which is connected to a host through the flat cable, and the host and the air pump are connected through wire signals. The detection seat includes a test box and a limit plate, and the test box is nested and connected with the limit plate. A bottom plate is also installed at the bottom of the limit plate, and a pneumatic interface connected to the air pipe is installed in the middle of the bottom plate. The surface of the bottom plate is also equipped with a socket, and the bottom plate is nested with the test box through the socket and the pneumatic interface.

[0006] Preferably, the test box comprises a limiting box body, a separation frame and a quick-connect bottom plate, the bottom of the groove of the limiting box body is provided with a bottom plate, and the separation frame is located inside the first movable groove on the side of the limiting box body.

[0007] Preferably, a slot is provided in the middle of the plate seat of the limit box body, and symmetrical slots and limit bolts are provided at opposite sides of the wall of the slot. A limit bolt is provided on the side of the limit bolt, and a positioning clip is fixedly installed inside the second movable slot by the limit bolt, and a movable separation frame is installed inside the first movable slot.

[0008] Preferably, the separation frame includes an adjuster and a synchronization frame, the adjuster is provided with more than two bracket surfaces of the synchronization frame installed on the adjuster and extending upward, a movable rod is fixed in the middle of the synchronization frame, the movable rod is connected to a quick-connect cavity seat, an inner groove is provided in the middle of the quick-connect cavity seat, the movable rod is movably connected to the inner groove, a reset spring is installed between the inner groove and the quick-connect cavity seat, and the quick-connect cavity seat is nested with the pneumatic interface.

[0009] Preferably, the interior of the synchronous frame is a hollow structure, and the inner cavity of the synchronous frame is connected to the through slot in the middle of the movable rod. The surface of the synchronous frame is also provided with air flow nozzles, which are opposite to the installation position of the regulator.

[0010] Preferably, the regulator includes a first frame, a second frame is installed inside the first frame, the second frame is slidably connected to the first frame, a buffer spring is installed inside the second frame, and the buffer spring is located between the inner wall of the socket and the inner wall of the second frame.

[0011] Preferably, the length of the second frame body is smaller than that of the first frame body, and an adjustment handle is also provided on the upper surface of the first frame body, and the adjustment handle passes through the upper surface of the first frame body.

[0012] Preferably, the quick-connect base plate includes a circuit board, a surface of the circuit board is provided with a snap-fit ​​base, and the snap-fit ​​base is nested with a movable terminal frame installed on the top.

[0013] Preferably, a limiting middle groove is provided in the middle of the snap-fit ​​base, and the limiting middle groove is nested with the column extending downward from the movable terminal frame. A terminal interface is provided at the bottom of the circuit board, and the circuit board is nested and fixed with the socket through the terminal interface. The snap-fit ​​base is made of non-metallic material, and metal strips that are conductive to the terminal interface are provided on both sides of the groove body of the snap-fit ​​base.

[0014] Preferably, a transverse groove body is provided on the surface opposite to the bottom plate of the limiting middle groove, and the limiting middle groove is nested with the transverse groove of the movable terminal frame.

[0015] The present invention provides a wire harness test fixture, which has the following effects: the improved device judges the connectivity state of the wire harness to be tested through a test box, the regulator is provided with an independent movable mechanism, the pressure of the regulator can be changed when the regulating handle adjusts the pneumatic interface, and when release is required, the inner groove inside the quick-connect cavity seat inputs airflow, and the airflow can displace the entirety of the synchronous frame in the axial direction of the movable rod through the quick-connect cavity seat, which can reduce the pressure of the buckle, and the hollow structure inside the synchronous frame can introduce airflow through the movable rod to eject the wire harness after release through the airflow nozzle, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 The figure is a schematic diagram of the structure of a wiring harness test fixture of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the detection seat of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the test box of the present invention.

[0019] Figure 4 It is a schematic diagram of the exploded structure of the limiting box body of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the quick-connect base plate of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the separation frame of the present invention.

[0022] Figure 7 It is a schematic cross-sectional structural diagram of the regulator of the present invention.

[0023] In the figure: 1. Detection seat; 2. Air pipe; 3. Cable; 4. Main unit; 5. Air pump; 11. Test box; 12. Limit plate; 13. Bottom plate; 14. Socket; 15. Pneumatic interface; 111, limit box body; 112, separation frame; 113, quick-connect bottom plate; 101, plate seat; 102, clamping slot; 103, first movable slot; 104, second movable slot; 105, limiting bolt; 106, clamping clip; 121, regulator; 122, synchronous frame; 123, air flow nozzle; 124, movable rod; 125, inner groove; 126, return spring; 127, quick-connect cavity seat; 211, first frame; 212, holder; 213, second frame; 214, buffer spring; 215, adjustment handle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the existing method, due to the buckle of the terminal itself, the terminal and the female seat are buckled and connected during the speed measurement process to achieve a stable contact effect. However, this operation will damage the terminal seat during frequent testing, which will lead to poor contact in the later stage. At the same time, due to the clamping of the terminal seat, the efficiency is slow during the test. Therefore, in order to solve the above problems, this case proposes the following technical solutions: See also Figures 1 to 7 The present invention provides a technical solution for a wiring harness test fixture: its structure includes: a detection seat 1, an air pipe 2, the detection seat 1 is connected to an air pump 5 through the air pipe 2, a flat cable 3 is installed on the side of the detection seat 1, and a host 4 is connected through the flat cable 3, and the host 4 is connected to the air pump 5 through a wire signal, characterized in that: the detection seat 1 includes a test box 11 and a limit plate 12, the test box 11 is nested and connected with the limit plate 12, a bottom plate 13 is also installed at the bottom of the limit plate 12, a pneumatic interface 15 connected to the air pipe 2 is installed in the middle of the bottom plate 13, and a socket 14 is also installed on the surface of the bottom plate 13, and the bottom plate 13 is nested with the test box 11 through the socket 14 and the pneumatic interface 15.

[0027] The main structure of the device includes a detection socket 1, which is used to connect the terminal. The detection socket 1 is connected to the host 4 through a flat cable 3. The flat cable 3 serves as a signal line of the host 4 and is used to determine the connection status of the terminal line. An air pump 5 is installed on the side of the host 4. The air pump 5 is used to generate a high-pressure airflow through the air pipe 2 to help the test box 11 of the detection socket 1 to separate the buckle.

[0028] The structure of the detection seat 1 includes a test box 11, which is installed on the top of the base plate 13 through a limit plate 12. A socket 14 and a pneumatic interface 15 are set in the middle of the base plate 13. The airflow can be quickly connected to the test box 11 through the pneumatic interface 15, and the socket 14 and the test box 11 can be quickly connected to transmit signals.

[0029] The limiting box body 111 of the test box 11 is used for the clamping of the terminal, and the quick-connect bottom plate 113 is used for the contact of the metal sheet inside the terminal. A separation frame 112 is installed inside the first movable groove 103 of the limiting box body 111, and the separation frame 112 is used for the clamping and adjustment of the terminal. The specific plate base 101 is provided with multiple clamping slots 102, and a first movable groove 103 is provided on one side of the inner wall of the clamping slot 102, and a second movable groove 104 is provided on the opposite side of the first movable groove 103. A clamping clip 106 is installed inside the second movable groove 104, and the clamping clip 106 is fixed and limited by a limiting bolt 105. The size of the hole of the clamping slot 102 can be adjusted according to terminals of different sizes, thereby ensuring the stability of the release.

[0030] When manually engaging, the separation frame 112 will move to ensure that the buckle will not fall off. The specific separation frame 112 includes a regulator 121 and a synchronization frame 122. The synchronization frame 122 is used to support the synchronization regulator 121. A movable rod 124 is set in the middle of the synchronization frame 122. The movable rod 124 is connected to the inner groove 125 inside the quick-connect cavity seat 127. A reset spring 126 is set between the inner groove 125 and the movable rod 124. When installed, the quick-connect cavity seat 127 is engaged with the pneumatic interface 15, so as to facilitate rapid multi-way release driven by airflow.

[0031] When tripping is required, airflow is introduced into the inner groove 125, and the airflow will quickly push the movable rod 124 to the limit position. A through hole is provided in the middle of the movable rod 124, which will synchronously pump out the airflow through the hollow synchronization frame 122 and out from the airflow nozzle 123, and then when the synchronization frame 122 moves, the terminal of the slot 102 can be pushed out by the airflow, thereby improving the efficiency of tripping.

[0032] The structure of the regulator 121 includes a first frame 211, and a second frame 213 is arranged inside the first frame 211. The second frame 213 is adjusted by an adjustment handle 215 on the top. When the second frame 213 is displaced, the position of the socket 212 changes. The socket 212 cooperates with the positioning clip 106 to change the center point of the terminal, making the snap fit more stable.

[0033] Long-term connection may cause oxidation of the metal rod on the surface of the movable terminal frame 135, resulting in poor contact during the contact process, which may lead to false alarms.

[0034] The device is optimized in this regard. A locking base 133 and a movable terminal frame 135 are set on the top of the circuit board 131. A plurality of grooves and protrusions are set on the opposite surfaces of the locking base 133 and the movable terminal frame 135. The contact stability can be improved by cooperating between the grooves and the protrusions. In order to avoid shaking, a column is set at the bottom of the movable terminal frame 135. The movable terminal frame 135 cooperates with the limiting middle groove 134 in the middle of the locking base 133 through the column to avoid falling off. The locking clip 106 will quickly connect the top of the bottom plate 113 when limiting to avoid signal interference. Similarly, the circuit board 131 performs rapid signal locking through the terminal interface 132 at the bottom, which is more convenient when in use. A buffer spring 214 is provided between the holder 212 and the second frame 213 to avoid danger during manual locking.

[0035] The improved device determines the connectivity status of the wiring harness to be tested through the test box 11, and the regulator 121 is provided with an independent movable mechanism. When the adjusting handle 215 adjusts the pneumatic interface 15, the pressure of the regulator 121 can be changed, and when release is required, the inner groove 125 inside the quick-connect cavity seat 127 inputs airflow, and the airflow passing through the quick-connect cavity seat 127 can displace the entirety of the synchronous frame 122 in the axial direction of the movable rod 124, which can reduce the pressure of the buckle, and the hollow structure inside the synchronous frame 122 can introduce airflow through the movable rod 124 to eject the wiring harness after release through the airflow nozzle 123, thereby improving the overall work efficiency.

[0036] The above only describes the basic principles and preferred implementations of the present invention. Those skilled in the art may make many changes and improvements based on the above description, and these changes and improvements should fall within the protection scope of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wiring harness test fixture, the structure of which includes: A detection seat (1), an air pipe (2), the detection seat (1) is connected to an air pump (5) through the air pipe (2), a flat cable (3) is installed on the side of the detection seat (1), and a host (4) is connected through the flat cable (3), and the host (4) and the air pump (5) are connected through a wire signal, characterized in that: the detection seat (1) includes a test box (11) and a limit plate (12), the test box (11) and the limit plate (12) are nested and connected, the bottom of the limit plate (12) is also installed with a bottom plate (13), the middle of the bottom plate (13) is installed with a pneumatic interface (15) connected to the air pipe (2), the surface of the bottom plate (13) is also installed with a socket (14), and the bottom plate (13) is nested and matched with the test box (11) through the socket (14) and the pneumatic interface (15).

2. A wiring harness test fixture as claimed in claim 1, characterized in that: The test box (11) comprises a limiting box body (111), a separation frame (112) and a quick-connect bottom plate (113); the bottom of the groove of the limiting box body (111) is provided with a bottom plate (13); the separation frame (112) is located inside a first movable groove (103) on the side of the limiting box body (111).

3. A wiring harness test fixture as claimed in claim 2, characterized in that: A slot (102) is provided in the middle of the plate base (101) of the limiting box body (111), and symmetrical slots (102) and limiting bolts (105) are provided at opposite sides of the wall of the slot (102). A limiting bolt (105) is provided on the side of the limiting bolt (105), and a positioning clip (106) is fixedly installed in the second movable slot (104) by the limiting bolt (105), and a movable separation frame (112) is installed in the first movable slot (103).

4. A wiring harness test fixture as claimed in claim 2, characterized in that: The separation frame (112) comprises a regulator (121) and a synchronous frame (122). The regulator (121) is provided with two or more bracket surfaces of the synchronous frame (122) which are mounted on the regulator (121) and extend upward. A movable rod (124) is fixed in the middle of the synchronous frame (122). The movable rod (124) is connected to a quick-connect cavity seat (127). An inner groove (125) is provided in the middle of the quick-connect cavity seat (127). The movable rod (124) is movably connected to the inner groove (125). A return spring (126) is installed between the inner groove (125) and the quick-connect cavity seat (127). The quick-connect cavity seat (127) is nested with the pneumatic interface (15).

5. A wiring harness test fixture as claimed in claim 4, characterized in that: The interior of the synchronous frame (122) is a hollow structure, and the inner cavity of the synchronous frame (122) is connected to the through slot in the middle of the movable rod (124). The surface of the synchronous frame (122) is also provided with an air flow nozzle (123), and the air flow nozzle (123) is opposite to the installation position of the regulator (121).

6. A wiring harness test fixture as claimed in claim 4, characterized in that: The regulator (121) comprises a first frame (211), a second frame (213) is installed inside the first frame (211), the second frame (213) is slidably connected to the first frame (211), a buffer spring (214) is installed inside the second frame (213), and the buffer spring (214) is located between the inner wall of the holder (212) and the inner wall of the second frame (213).

7. A wiring harness test fixture as claimed in claim 6, characterized in that: The length of the second frame body (213) is smaller than the length of the first frame body (211), and an adjustment handle (215) is also provided on the upper surface of the first frame body (211), and the adjustment handle (215) passes through the upper surface of the first frame body (211).

8. A wiring harness test fixture as claimed in claim 2, characterized in that: The quick-connect base plate (113) comprises a circuit board (131), a surface of the circuit board (131) is provided with a snap-fit ​​base (133), and the snap-fit ​​base (133) is nested with a movable terminal frame (135) installed on the top.

9. A wiring harness test fixture as claimed in claim 8, characterized in that: A limiting middle groove (134) is provided in the middle of the snap-fit ​​base (133), and the limiting middle groove (134) is nested with a column extending downward from the movable terminal frame (135); a terminal interface (132) is provided at the bottom of the circuit board (131), and the circuit board (131) is nested and fixed with the socket (14) through the terminal interface (132); the snap-fit ​​base (133) is made of non-metallic material, and metal strips that are conductive to the terminal interface (132) are provided on both sides of the groove body of the snap-fit ​​base (133).

10. A wiring harness test fixture as claimed in claim 9, characterized in that: The surface of the limiting middle groove (134) facing the bottom plate (13) is provided with a transverse groove body, and the limiting middle groove (134) is nested with the transverse groove of the movable terminal frame (135).

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