Wire harness electrical conduction test board

Abstract

The utility model belongs to the field of wire harness testing, and provides a wire harness electric conduction test board, which comprises a test board, a pair of side plates are arranged on the test board, a pair of sliding rods are arranged between the side plates, a pair of test seats are arranged on the sliding rods, the two test seats are oppositely arranged, and the test seats are arranged on the test board. The front end of the test seat is provided with a stepped clamping groove, the front part of the clamping groove is narrow, the rear part of the clamping groove is wide, the rear end of the clamping groove is provided with a pair of guide rods, the guide rods are provided with a conduction seat in a sliding manner, and the guide rods are provided with pre-pressing springs between the test seat and the conduction seat. Before an electric conduction test is carried out on the wire harness, firstly, the two test seats slide inwards for a small distance to adapt to the length of the wire harness, then terminals at the two ends of the wire harness are placed into the clamping grooves, then the two test seats move backwards for a small distance, the wire harness is straightened, and the conduction seats move towards the corresponding test seats; and the conductive ejector pins are inserted into the terminals to carry out an electric conduction test, all the test seats and the conduction seats are reset after the test is completed, and finally the wire harness is taken off by a worker.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wire harness test, especially relates to a wire harness electric conduction test board. BACKGROUND

[0002] With the continuous increase of electronic product types and the improvement of complexity, as the important part of connecting various electronic components, the quality and reliability of wire harness directly affect the performance and safety of the whole product. Therefore, the wire harness needs to be tested after production to ensure that each wire harness meets the factory requirements.

[0003] When the existing wire harness electric conduction test board tests the function of the wire harness, the wire harness is first placed on the test board according to the requirements, and then the test socket is pushed into the test port of the wire harness by the cylinder. Although this can also conduct a conduction test on the wire harness, the wire harness is not fixed during the test, so the wire harness is easy to shake during the test. This not only reduces the accuracy of the test data, but also damages the wire harness. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims to provide a wire harness electric conduction test board, which aims to solve the problem of low accuracy of test data and easy damage to the wire harness of the existing wire harness electric conduction test board.

[0005] The utility model adopts the following technical scheme:

[0006] The wire harness electric conduction test board comprises a test board, a pair of side plates are arranged on the test board, a pair of sliding rods are arranged between the side plates, a pair of test seats are arranged on the sliding rods, the two test seats are arranged opposite to each other, a stepped clamping groove is formed in the front end of the test seat, the clamping groove is narrow in front and wide in back, a pair of guide rods are arranged at the rear end of the test seat, a conduction seat is slidably arranged on the guide rod, a pre-pressing spring is arranged between the test seat and the conduction seat on the guide rod, a plurality of conductive pins are arranged on the front end of the conduction seat and face the clamping groove, a push cylinder is further arranged on the side plate, the drive shaft of the push cylinder is connected with the tail of the conduction seat on the same side through a short plate, and a sliding mechanism for driving the two test seats to move synchronously is further arranged on the test board.

[0007] Further, a connecting plate is arranged on each side of the test board, a pressing plate is connected to the top of the two connecting plates through a locking nut, and the clamping groove and the pressing plate are arranged adjacent to each other.

[0008] Further, an avoiding opening is formed in the test seat corresponding to the conduction seat.

[0009] Further, the slide rod is provided with a fixing seat behind each test seat, and a reset spring is arranged between the fixing seat and the test seat on the slide rod, the bottom of the test seat is provided with a connecting shaft, the sliding mechanism comprises a rotating shaft rotatably arranged on the test table, a rotating plate is arranged on the rotating shaft, linkage plates are rotatably arranged at both ends of the rotating plate, the linkage plates are rotatably connected with the corresponding connecting shafts, and a rotary cylinder for driving the rotating shaft to rotate is further arranged on the test table.

[0010] Further, the conducting seat comprises a base, a recess is formed in the base, a conducting head is arranged in the recess, a pair of waist circular grooves are formed in the conducting head, fixed nuts are inserted into the waist circular grooves, the fixed nuts are screwed into the base, and the front end of the conducting head is provided with the conductive contact pin.

[0011] The wire harness electrical conduction test table has the advantages that before the wire harness is subjected to electrical conduction test, first, the two test seats are slid inward by a small distance to adapt to the length of the wire harness, then the terminals at the two ends of the wire harness are placed into the clamping grooves one by one according to requirements, then the two test seats are driven by the sliding mechanism to move backward by a small distance, and the wire harness is straightened. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a whole view of the wire harness electrical conduction test table.

[0013] Fig. 2 It is an installation schematic view of the test seat and the conducting seat. DETAILED DESCRIPTION

[0014] In order to make the patent purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0015] In order to illustrate the technical solutions of the present application, the following specific embodiments are used for illustration.

[0016] In order to facilitate the description, only parts related to the embodiments of the present application are shown.

[0017] COMBINATION Figs. 1-2As shown, the harness continuity test bench comprises a test bench 1, a pair of side plates 2 are arranged on the test bench 1, a pair of slide rods 3 are arranged between the side plates 2, a pair of test seats 4 are arranged on the slide rods 3, the two test seats 4 are oppositely arranged, a stepped clamping groove 5 is formed in the front end of the test seat 4, the clamping groove is narrow in front and wide in back, a pair of guide rods 6 are arranged at the rear end of the test seat 4, and nuts are arranged at the tail of the guide rods 6. A continuity seat 7 is slidably arranged on the guide rod 6, a pre-pressing spring 8 is arranged between the test seat 4 and the continuity seat 7 on the guide rod 6, a plurality of conductive pins 9 are arranged at the front end of the continuity seat 7 and face the clamping groove 5, a push cylinder 10 is further arranged on the side plate 2, the driving shaft of the push cylinder 10 is connected with the tail of the continuity seat 7 on the same side through a short plate 22, and a sliding mechanism for driving the two test seats 4 to move synchronously is further arranged on the test bench 1.

[0018] With the continuous increase of the types of electronic products and the improvement of the complexity, the harness as an important part of connecting various electronic components directly affects the performance and safety of the whole product. Therefore, the harness continuity test bench can be used to test the continuity of the harness after the production of the harness, so as to ensure that each harness meets the factory requirements.

[0019] The two ends of the harness are connected with terminals. Before the harness is tested by the harness continuity test bench, first of all, the two test seats are slid inward by a small distance to adapt to the length of the harness, then the terminals at the two ends of the harness are placed in the clamping groove according to the requirements, then the two test seats are moved backward by a small distance under the driving of the sliding mechanism, and the harness is straightened. Then the push cylinder drives the continuity seat to move towards the corresponding test seat until the conductive pins on the continuity seat are inserted into the terminals for continuity test. After the test is completed, the test seats and the continuity seat on both sides are reset, and finally the staff takes down the harness.

[0020] In the above process, the push cylinder drives the continuity seat to move towards the test seat, and the pre-pressing spring is gradually compressed during the movement of the continuity seat. When the pre-pressing spring is completely compressed, all the conductive pins are inserted into the terminals and continuity test is performed. During the whole continuity test, the conductive pins can always be tightly attached to the terminals under the pre-pressing effect of the pre-pressing spring. At the same time, by setting the pre-pressing spring, damage of the conductive pins to the terminals can be avoided under the force of the push cylinder.

[0021] In the structure, the test bench 1 is provided with a connecting plate 11 on both sides of each test seat 4, the top of the two connecting plates 11 is connected with a pressing plate 13 through locking nuts 12, and the clamping groove 5 is arranged adjacent to the pressing plate 12 in front and back. The pressing plate is designed in a detachable structure, and when the pressing plate is to be detached, only two locking nuts need to be unscrewed.

[0022] Because the card slot is ladder-shaped, and the card slot is narrow in front and wide in back. When the terminals at both ends of the wire harness are placed in the card slot according to the requirements, the card slot first limits the terminals. When the two test seats are moved a small distance backward, the wire harness is straightened, and the two terminals are further limited in the card slot under the pull of the wire harness. And the pressing plate is located directly above the card slot, and the pressing plate presses the terminals. Then the two terminals are completely fixed in the card slot. Avoid small amplitude shaking of the terminal when conducting electrical conduction test on the wire harness, so as to affect the accuracy of the test data.

[0023] As a preferred structure, a fixing seat 14 is arranged behind each test seat 4 on the slide rod 3, a reset spring 15 is arranged between the fixing seat 14 and the test seat 4 on the slide rod 3, and a connecting shaft 16 is arranged at the bottom of the test seat 4. The sliding mechanism comprises a rotating shaft 17 rotatably installed on the test table 1, a rotating plate 18 is arranged on the rotating shaft 17, and a linkage plate 19 is rotatably arranged at both ends of the rotating plate 18. The linkage plate 19 is rotatably connected with the corresponding connecting shaft 16, and a rotary cylinder 20 for driving the rotating shaft to rotate is further arranged on the test table 1.

[0024] When the two terminals at both ends of the wire harness are placed in the card slot according to the requirements, when the sliding mechanism is used to drive the two test seats to move backward synchronously and reversely, the rotary cylinder drives the rotating shaft to rotate counterclockwise first, and the two linkage plates push the two test seats to slide a small distance backward on the slide rod synchronously. After the test seat is moved to the position, the reset spring is compressed. The wire harness is straightened, and the terminal is fixed in the card slot. Finally, the push cylinder pushes the conduction seat to move toward the test seat, so as to conduct electrical conduction test on the terminal.

[0025] In the structure, the test seat 4 is provided with an avoiding opening 21 corresponding to the conduction seat. When the push cylinder pushes the conduction seat to move forward, the avoiding opening plays a role in avoiding the conduction seat.

[0026] Further, as a preferred structure, the conduction seat 7 comprises a base 71, a recess 72 is opened in the base 71, a conduction head 73 is arranged in the recess 72, a pair of waist round grooves 74 are opened in the conduction head 73, a fixed nut is penetrated into the waist round groove 74, the fixed nut is screwed into the base 71, and the conduction head 73 is provided with the conductive thimble 9 at the front end.

[0027] In the structure, the conducting seat is composed of the base and the conducting head. A groove is opened on the base, the conducting head is placed in the groove according to the requirement, then the fixing nut is screwed into the waist round groove, and the conducting head is fixed in the groove through the fixing nut. The installation position of the conducting head can be finely adjusted. When the installation position of the conducting head is to be finely adjusted, first, the two fixing nuts are loosened, the conducting head can be moved back and forth in the groove to adjust the installation position, and after the adjustment is completed, the fixing nuts are tightened.

[0028] In addition, during the actual test, the conducting head can be replaced according to the situation to adapt to different specifications of the wire harness. Specifically, only the fixing nuts are unscrewed, the conducting head can be directly taken off from the base, other conducting heads are placed in the groove, the installation position is adjusted, and then the fixing nuts are screwed into the waist round groove and tightened in the base.

[0029] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A harness electrical continuity test bench, characterized by: The wire harness conduction test platform comprises a test platform, a pair of side plates are arranged on the test platform, a pair of slide rods are arranged between the side plates, a pair of test seats are arranged on the slide rods, the two test seats are oppositely arranged, a stepped clamping groove is formed in the front end of the test seat, the clamping groove is narrow in front and wide in back, a pair of guide rods are arranged at the rear end of the test seat, a conduction seat is slidably arranged on the guide rods, a pre-pressing spring is arranged between the test seat and the conduction seat on the guide rod, a plurality of conductive pins are arranged on the front end of the conduction seat and face the clamping groove, a push air cylinder is further arranged on the side plate, the driving shaft of the push air cylinder is connected with the tail of the conduction seat on the same side through a short plate, and a sliding mechanism for driving the two test seats to move synchronously is further arranged on the test platform.

2. The harness electrical continuity test station of claim 1, wherein: The test platform is provided with a connecting plate on the two sides of each test seat, the top of the two connecting plates is connected with a pressing plate through a locking nut, and the clamping groove and the pressing plate are arranged adjacent to each other in front and back.

3. The harness electrical continuity test station of claim 2, wherein: The test seat is provided with an avoiding opening corresponding to the conduction seat.

4. The harness electrical continuity test station of claim 3, wherein: A fixing seat is arranged at the rear of each test seat on the slide rod, a reset spring is arranged between the fixing seat and the test seat on the slide rod, a connecting shaft is arranged at the bottom of the test seat, the sliding mechanism comprises a rotating shaft rotatably arranged on the test platform, a rotating plate is arranged on the rotating shaft, linkage plates are rotatably arranged at the two ends of the rotating plate, the linkage plates are rotatably connected with the corresponding connecting shafts, and a rotary air cylinder for driving the rotating shaft to rotate is further arranged on the test platform.

5. The harness electrical continuity test station of claim 4, wherein: The conduction seat comprises a base, a recess is formed in the base, a conduction head is arranged in the recess, a pair of waist circular grooves are formed in the conduction head, a fixing nut is inserted into the waist circular grooves, the fixing nut is screwed into the base, and the conductive pins are arranged at the front end of the conduction head.

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