Terminal wire harness conduction test equipment

Abstract

The invention relates to the field of terminal wire harness conduction testing, in particular to terminal wire harness conduction testing equipment which comprises a base and a support. A supporting groove is formed in the upper portion of the support in the length direction of the support, one end of the supporting groove is open, a plurality of terminal wire harnesses are evenly distributed on the supporting groove in the extending direction of the supporting groove, the terminal wire harnesses penetrate through the supporting groove, and an extending plate is fixedly arranged on the lower portion of the supporting groove in the vertical direction. The extension plates are uniformly arranged along the extension direction of the support groove, a first gap exists between adjacent extension plates, a second gap exists between adjacent single wire harnesses in the terminal wire harnesses, the size of the first gap is equal to that of the second gap, and a wire arrangement unit is arranged below the support groove. The wire arranging unit is located on the side, away from the extension plate, of the terminal wire harness and comprises a pressing rod moving in the horizontal direction. According to the invention, the workload during testing is reduced, and the condition that the terminal wire harness is damaged during automatic testing is avoided.

Description

Technical Field

[0001] The invention relates to the field of terminal harness continuity testing, and in particular to a terminal harness continuity testing device. Background Art

[0002] The wires of wiring harness products may have problems such as short circuits, open circuits, and missing connections during the production process. Therefore, the wires must be tested for electrical continuity before leaving the factory. Wire harness products with different functions require different test circuit connection structures to complete their tests, and the structures of the conduction fixtures used in the tests are also different. When clamping the wire harness with tubular terminals, a clamp is often used to clamp the product. However, after multiple clamping, the clamp is prone to loosening and falling off, resulting in insufficient terminal contact and inaccurate connection. At the same time, in order to ensure that the clamping is firm, it is bound to lead to a complex structure, difficult clamping, and reduced test efficiency.

[0003] Chinese patent CN218037270U discloses a continuity tester for a tubular terminal harness, which includes a jig box and a display, wherein a locking structure and a connecting socket are arranged in the jig box, wherein one end of the connecting socket and the locking structure in the box body is connected to a connecting wire, wherein the connecting wire is inserted into the display, wherein the locking structure includes an upper movable part, a spring and a lower fixed part, wherein one end of the lower fixed part extends into the jig box and the other end extends out of the jig box, wherein a first through hole is arranged on the lower fixed part, wherein the spring is arranged in the upper movable part, wherein a detachable cover of the upper movable part is arranged outside the lower fixed part, wherein a second through hole is arranged on the upper movable part, and the sizes of the first through hole and the second through hole are both larger than the diameter of the tubular terminal.

[0004] The above scheme clamps the wire harness through movable parts, which is a dislocation clamping method, that is, when clamping, the clamping force on the wire harness is dislocation-arranged. Therefore, when using the dislocation clamping method, if you need to ensure the stability of the clamping, you need to make the clamping force larger. The wire harness with dislocation force is prone to damage. If you want to avoid damage to the wire harness, you need to reduce the clamping force, but the stability of the clamping cannot be guaranteed, which affects the final test results. Many existing terminal wire harnesses are provided with interfaces at both ends, not for a single wire harness. When measuring, you only need to plug the interfaces at both ends of the wire harness into the test socket to complete the connection, but the above connection requires manual The connection is labor-intensive, and the test socket may be damaged due to inaccurate connection during manual connection, which reduces the life of the test socket. If automatic wiring is used, the existing equipment cannot fix the terminal harness in a flexible state, and the harness may be staggered during testing, which causes the interface of the terminal harness to be unable to be aligned with the interface of the test equipment during connection, and even if the limit device can align the interface of the terminal harness with the interface of the test equipment, the terminal harness cannot be straightened out, which can easily cause the connection between the terminal harness and the terminal harness interface to become loose during the test, causing the terminal harness that originally met the standards to be damaged due to the test. Summary of the invention

[0005] In view of the above problems, a terminal harness continuity test device is provided, which pre-combines a single harness in the terminal harness by pressing a rod and an extension plate, and then automatically connects the upper and lower interfaces of the terminal harness to the device, so that the continuity test of the terminal harness can be automatically completed without damaging the terminal harness. The workload during the test is reduced, and the terminal harness is prevented from being damaged during the automatic test.

[0006] In order to solve the problems of the prior art, the present invention provides a terminal harness conduction test device, comprising a base and a bracket arranged on the upper part of the base; a support groove is opened on the upper part of the bracket along the length direction of the bracket, one end of the support groove is open, and a plurality of terminal harnesses are evenly arranged on the support groove along the extension direction of the support groove, and the terminal harness passes through the support groove, and an extension plate is fixedly arranged in the vertical direction at the lower part of the support groove, the extension plates are evenly arranged along the extension direction of the support groove, and a first gap exists between adjacent extension plates, and a second gap exists between adjacent single harnesses in the terminal harness, and the size of the first gap is equal to the size of the second gap, and a wire management unit is also arranged below the support groove, and the wire management unit is located on the side of the terminal harness away from the extension plate, and the wire management unit includes a pressing rod that moves in the horizontal direction, and when the pressing rod moves in the horizontal direction, it passes through the second gap and the first gap in sequence, and then the pressing rod moves from top to bottom in the vertical direction.

[0007] Preferably, a lifting frame is arranged on one side of the bracket for movement in the vertical direction, a lifting unit for driving the lifting frame to move is arranged on the lifting frame, there is a highest position on the vertical movement path of the lifting frame, a first linear drive is arranged horizontally on the lifting frame, the output end of the first linear drive is horizontally facing the extension plate, a pressing rod is fixedly arranged on the output end of the first linear drive, when the lifting frame is at the highest position, the upper end face of the pressing rod is coplanar with the lower end face of the supporting groove, and when the first linear drive drives the pressing rod to extend, the lifting frame is at the highest position.

[0008] Preferably, the vertical moving path of the lifting frame also includes a lowest position, and the distance between the highest position and the lowest position of the lifting frame is the same as the length of the terminal harness.

[0009] Preferably, the lifting unit includes a threaded rod and a rotary driver. The threaded rod is arranged on one side of the bracket in the vertical direction. The threaded rod penetrates the lifting frame and cooperates with the lifting frame thread. The rotary driver for driving the threaded rod to rotate is arranged at the upper end of the threaded rod.

[0010] Preferably, an upper connecting seat is provided on the upper part of the bracket, and a second linear drive for driving the upper connecting seat to move in the vertical direction is provided on the upper part of the upper connecting seat. When the pressing rod is not extended, the upper connecting seat is at the highest position of the upper connecting seat moving path. After the pressing rod is extended, the upper connecting seat descends in the vertical direction to the lowest position of the upper connecting seat moving path.

[0011] Preferably, a lower connecting seat is provided at the lower part of the bracket for movement in the vertical direction, and the moving path of the lower connecting seat has a highest position and a lowest position. When the lifting frame descends to the lowest position of the lifting frame, the lower connecting seat is at the lowest position of the lower connecting seat.

[0012] Preferably, a mounting plate is fixedly provided horizontally on the side walls on both sides of the lower connecting seat, a wedge block is movably provided in the vertical direction on the upper part of the mounting plate, a sliding rod is fixedly provided in the vertical direction on the lower part of the wedge block, the sliding rod passes through the mounting plate in the vertical direction and slides with the mounting plate in the vertical direction, there is a gap between the upper end of the sliding rod and the mounting plate, a spring is provided in the gap along the extension direction of the sliding rod, two ends of the spring are fixedly connected to the mounting plate and the upper part of the sliding rod, respectively, and the side of the upper part of the wedge block close to the lower connecting seat is inclined toward the lower connecting seat.

[0013] Preferably, a fixing unit is provided on the bracket on one side when the lifting frame is in the lowest position, and the fixing unit includes a fixing plate which moves along the width direction of the supporting groove, and a fourth linear drive for driving the fixing plate to move is horizontally provided on one side of the fixing plate, and a fixing block is fixedly provided at the lower part of the pressing rod, and the fixing block and the fixing plate clamp the lower interface of the terminal harness.

[0014] Preferably, a plurality of warning lights are arranged on the side wall of the bracket, and the number of the warning lights corresponds to the number of terminal wiring harnesses arranged on the support groove. The upper connecting seat, the lower connecting seat and the warning lights are connected in series in sequence. When the terminal wiring harness is connected, the warning light lights up, and when the terminal wiring harness is not connected, the warning light cannot light up.

[0015] Preferably, a slot is provided at one side of the open end of the support slot along the width direction of the support slot, and an inserting plate is slidably provided on the slot along the extending direction of the slot.

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

[0017] 1. During the test, push the terminal harness from one end of the support groove into the support groove in sequence. The upper interface and the lower interface of the terminal harness are located at the upper and lower parts of the support groove respectively. The support groove can accommodate a rated number of terminal harnesses. After the rated number of terminal harnesses are pushed into the support groove in sequence, the test equipment is started. The test equipment includes an upper connecting seat located at the upper part of the bracket and a lower connecting seat located at the lower part of the bracket. When the test equipment is started, the upper connecting seat gradually descends in the vertical direction and connects with the interface at the upper part of the terminal harness. Since the terminal harness arranged on the support groove is suspended on the support groove, the upper interface of the terminal harness fits tightly with the upper part of the bracket, and the interface of the terminal harness will not be tilted. When the upper connecting seat is connected to the interface at the upper part of the terminal harness, the pressing rod will also move in the horizontal direction. The pressing rod passes through the second gap and the first gap in sequence, and then the pressing rod moves from top to bottom in the vertical direction. The pressing rod is in the first gap. The bracket moves from top to bottom in the gap between the two terminals, combing out the multiple single wire harnesses in the terminal harness, so that the bent terminal harnesses are straightened, and then the lower connector rises and connects to the interface at the bottom of the terminal harness. A warning light is set on the bracket, and the warning light is connected in series with the lower connector. Then the upper connector is powered on. If there is no conduction problem with the terminal harness, the warning light will light up. If there is a conduction problem with the terminal harness, the warning light will not light up. In this way, the conduction test of the terminal harness can be automatically completed without damaging the terminal harness. The workload during the test is reduced, and the terminal harness is prevented from being damaged during the automatic test.

[0018] 2. By arranging a wedge block on one side of the lower connecting seat, the inclined structure on the upper part of the wedge block corrects the lower interface of the terminal harness, so that the lower interface of the terminal harness after correction can be smoothly connected to the lower connecting seat, and the spring arranged at the lower part of the wedge block can provide a movement clearance for the wedge block in the vertical direction, thereby avoiding the situation where the wedge block excessively squeezes the lower interface of the terminal harness when correcting the lower interface of the terminal harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The invention is a three-dimensional schematic diagram of a terminal harness continuity test device.

[0020] Figure 2 It is a terminal harness continuity test equipment Figure 1 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 3 It is a terminal harness continuity test equipment Figure 1 A local enlarged schematic diagram of point B in the middle.

[0022] Figure 4 It is a side view of a terminal harness continuity tester.

[0023] Figure 5 It is a terminal harness continuity test equipment Figure 4 Schematic cross-sectional view at CC in the middle.

[0024] Figure 6 It is a terminal harness continuity test equipment Figure 5 A partial enlarged schematic diagram of point D in the middle.

[0025] Figure 7 The invention discloses a cutaway stereoscopic schematic diagram of a terminal harness continuity test device in a test state.

[0026] Figure 8 The present invention is a three-dimensional schematic diagram of a terminal harness continuity test device with a bracket and a base removed.

[0027] Fig. 9 It is a terminal harness continuity test equipment Figure 8 A partial enlarged schematic diagram of point E in the middle.

[0028] Fig.10 The present invention is a cutaway stereoscopic schematic diagram of a terminal harness continuity test device after the upper connection seat is separated from the upper interface of the terminal harness after the test is completed.

[0029] Fig.11 The invention discloses a cutaway stereoscopic schematic diagram of a terminal harness continuity test device when a pressing rod just passes through a second gap.

[0030] Fig.12 It is a terminal harness continuity test equipment Fig.11 A partial enlarged schematic diagram of point F in the middle.

[0031] Fig.13 The invention is a cutaway stereoscopic schematic diagram of a terminal harness continuity test device when a pressing rod passes through a second gap and then accurately descends.

[0032] Fig.14 It is a terminal harness continuity test equipment Fig.13 A local enlarged schematic diagram of point G in the middle.

[0033] The numbers in the figure are:

[0034] 1. Base; 2. Bracket; 21. Support groove; 22. Extension plate; 23. Wire management unit; 231. Press rod; 232. First linear drive; 233. Lifting frame; 234. Lifting unit; 2341. Threaded rod; 2342. Rotational drive; 2343. Guide rod; 24. Prompt light; 25. Plug-in board; 3. Terminal harness; 4. Upper connecting seat; 41. Second linear drive; 5. Lower connecting seat; 51. Third linear drive; 52. Wedge block; 53. Mounting plate; 54. Sliding rod; 55. Spring; 6. Fixing unit; 61. Fixing block; 62. Fixing plate; 63. Fourth linear drive. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Reference Figure 1 , Figure 2 , Fig.10 , Fig.12 and Fig.14 A terminal harness conduction test device, comprising a base 1 and a bracket 2 arranged on the upper part of the base 1; a support groove 21 is opened on the upper part of the bracket 2 along the length direction of the bracket 2, one end of the support groove 21 is open, and a plurality of terminal harnesses 3 are evenly arranged on the support groove 21 along the extension direction of the support groove 21, and the terminal harnesses 3 penetrate the support groove 21, and an extension plate 22 is fixedly arranged at the lower part of the support groove 21 along the vertical direction, and the extension plates 22 are evenly arranged along the extension direction of the support groove 21, and adjacent extension plates 22 are evenly arranged along the extension direction of the support groove 21. There is a first gap between the plates 22, and a second gap between adjacent single wire harnesses in the terminal wire harness 3. The size of the first gap is equal to the size of the second gap. A wire management unit 23 is also arranged below the support groove 21. The wire management unit 23 is located on the side of the terminal wire harness 3 away from the extension plate 22. The wire management unit 23 includes a pressing rod 231 that moves in the horizontal direction. When the pressing rod 231 moves in the horizontal direction, it passes through the second gap and the first gap in turn, and then the pressing rod 231 moves from top to bottom in the vertical direction.

[0037] The terminal harness 3 is composed of multiple single harnesses, each of which has a relatively small diameter, and interfaces are provided at both ends of the terminal harness 3 in the finished product state, and one interface is usually provided with multiple terminal harnesses 3. The existing harness conduction test usually tests a single harness, but the method of testing a single harness can only be applied to harnesses with a larger diameter, and cannot be applied to the terminal harness 3. This is because the harness diameter of the terminal harness 3 is relatively small, and testing a single terminal harness 3 cannot guarantee that the terminal harness 3 can be stably fixed. In addition, since the terminal harness 3 is usually in a clustered shape and the number is large, the workload of testing a single terminal harness 3 is large, and the accuracy of the test results cannot be guaranteed. In this way, for the finished terminal harness 3, the interfaces at both ends of the terminal harness 3 are usually connected to the test equipment respectively, and the connection process requires manual operation. The interface at the end of the terminal harness 3 needs to be flush before being connected with the interface on the test equipment. However, during manual testing, it cannot be guaranteed that the structure at the end of the terminal harness 3 and the interface on the test equipment can be flush when connected. In this way, wear and tear will occur during the connection, causing the interface of the test equipment to loosen after a long period of testing, which in turn causes the test equipment to fail to connect, and ultimately causes deviations in the test results.

[0038] In order to avoid the above situation, the test equipment is further improved to reduce the wear of the interface at the end of the terminal harness 3 on the interface of the test equipment during connection. During the test, the terminal harness 3 is pushed into the support groove 21 from the open end of the support groove 21 in sequence. The terminal harness 3 is not a single harness, but is composed of multiple harnesses, and the two ends of the multiple harnesses are respectively set on two interfaces, that is, the terminal harness 3 tested here is the state of the terminal harness 3 in the finished product state. The upper interface and the lower interface of the terminal harness 3 are respectively located at the upper and lower parts of the support groove 21. The support groove 21 can accommodate a rated number of terminal harnesses 3. After the rated number of terminal harnesses 3 are pushed into the support groove 21 in sequence, the test equipment is started. The test equipment includes an upper connecting seat 4 located at the upper part of the bracket 2 and a lower connecting seat 5 located at the lower part of the bracket 2.

[0039] When the test equipment is started, the upper connecting seat 4 gradually descends in the vertical direction and is connected to the interface on the upper part of the terminal harness 3. Since the terminal harness 3 arranged on the support groove 21 is suspended on the support groove 21, the upper interface of the terminal harness 3 fits tightly with the upper part of the bracket 2, and the interface of the terminal harness 3 will not be tilted, thereby ensuring that the upper connecting seat 4 can be stably connected to the interface on the upper part of the terminal harness 3. When the upper connecting seat 4 is connected to the interface on the upper part of the terminal harness 3, the pressing rod 231 will also move in the horizontal direction. It is worth noting that at the beginning of the test, when the terminal harness 3 is pushed into the support groove 21 in turn, the pressing rod 231 is located on one side of the support groove 21 at this time, so that the terminal harness 3 can move smoothly along the extension direction of the support groove 21. After the terminal harness 3 is placed, the pressing rod 231 located on one side of the support groove 21 begins to move. The pressing rod 231 moves in the horizontal direction toward the extension plate 22. During the movement of the pressing rod 231, the pressing rod 231 passes through the second gap and the first gap in turn. Usually, multiple single harnesses in the terminal harness 3 will appear to be staggered. If the harnesses are not straightened out during the test, the interface between the terminal harness 3 and the terminal harness 3 will be disconnected during the test. The pressing rod 231 can avoid the above situation. When the pressing rod 231 moves in the horizontal direction, the pressing rod 231 passes between adjacent single wire harnesses in the terminal wire harness 3, and the extension plate 22 arranged on one side of the terminal wire harness 3 is used to support the single wire harness. If there is bending between adjacent single wire harnesses in the terminal wire harness 3, and the extension plate 22 is not set on one side of the terminal wire harness 3, when the pressing rod 231 moves horizontally toward the terminal wire harness 3, the bent single wire harness in the horizontal wire harness 3 will be pushed open by the pressing rod. After the extension plate 22 is set, the single wire harness in the horizontal wire harness 3 is blocked by the extension plate 22, so that the pressing rod 231 can pass between adjacent single wire harnesses, that is, the pressing rod 231 can smoothly pass through the second gap. At this time, the pressing rod 231 located in the second gap is located at the upper end of a single wire harness, and then the pressing rod 231 moves from top to bottom in the vertical direction. The pressing rod 231 moves from top to bottom in the second gap, and the length of the terminal harness 3 is the rated size. The distance that the pressing rod 231 descends is the same as the rated length of the terminal harness 3. When the pressing rod 231 descends to the lowest position, the terminal harness 3 can be completely straightened. Then the lower connecting seat 5 rises and connects with the interface at the bottom of the terminal harness 3.

[0040] A warning light 24 is provided on the bracket 2, and the warning light 24 is connected in series with the lower connection seat 5. Then, the upper connection seat 4 is powered on. If there is no conduction problem with the terminal harness 3, the warning light 24 lights up. If there is a conduction problem with the terminal harness 3, the warning light 24 cannot light up. In this way, the conduction test of the terminal harness 3 can be automatically completed without damaging the terminal harness 3. The workload during the test is reduced, and the terminal harness 3 is prevented from being damaged during the automatic test.

[0041] Reference Figure 7 and Fig.10 : A lifting frame 233 is arranged on one side of the bracket 2 for movement in the vertical direction, and a lifting unit 234 for driving the lifting frame 233 to move is arranged on the lifting frame 233. There is a highest position on the vertical movement path of the lifting frame 233. A first linear driver 232 is horizontally arranged on the lifting frame 233, and the output end of the first linear driver 232 is horizontally facing the extension plate 22. The pressing rod 231 is fixedly arranged on the output end of the first linear driver 232. When the lifting frame 233 is at the highest position, the upper end face of the pressing rod 231 is coplanar with the lower end face of the supporting groove 21. When the first linear driver 232 drives the pressing rod 231 to extend, the lifting frame 233 is at the highest position.

[0042] The first linear drive 232 is preferably a linear servo electric cylinder. Since a single wire harness in the terminal wire harness 3 may be bent and offset, and the closer the single wire harness is to the interface position, the smaller the offset is, so the pressing rod 231 is easier to pass through the second gap at that position, and the farther the single wire harness is from the interface, the greater the offset is when the single wire harness is offset. In the process of the pressing rod 231 extending toward the second gap, the single wire harness may not be able to pass through the second gap smoothly due to excessive offset. In the process of straightening the terminal wire harness 3 by the pressing rod 231, the upper end face of the lifting frame 233 is coplanar with the lower end face of the support groove 21, ensuring that the pressing rod 231 can pass smoothly between the single wire harnesses, thereby ensuring the subsequent straightening effect of the terminal wire harness 3 by the pressing rod 231.

[0043] Reference Figure 1-Figure 14 : The vertical moving path of the lifting frame 233 also includes a lowest position, and the distance between the highest position and the lowest position of the lifting frame 233 is the same as the length of the terminal harness 3.

[0044] The descending distance of the lifting frame 233 is made the same as the length of the terminal harness 3. In this way, when the lifting frame 233 descends to the lowest position, the extended pressing rod 231 is in a pressing state on the interface at the bottom of the terminal harness 3, and then the lower connecting seat 5 rises to be normally connected to the interface at the bottom of the terminal harness 3.

[0045] Reference Figure 2 and Figure 5 : The lifting unit 234 includes a threaded rod 2341 and a rotation driver 2342. The threaded rod 2341 is arranged on one side of the bracket 2 in the vertical direction. The threaded rod 2341 penetrates the lifting frame 233 and is threadedly matched with the lifting frame 233. A rotation driver 2342 for driving the threaded rod 2341 to rotate is arranged at the upper end of the threaded rod 2341.

[0046] The lifting unit 234 further includes a guide rod 2343, which is arranged on one side of the threaded rod 2341 in parallel with the axis of the threaded rod 2341, and the guide rod 2343 penetrates the lifting frame 233, and the lifting frame 233 and the guide rod 2343 are slidably matched, and the rotary driver 2342 is preferably a servo motor. When it is necessary to drive the lifting frame 233 to move, the rotary driver 2342 is started, and the rotary driver 2342 drives the threaded rod 2341 to rotate, and the guide rod 2343 located on one side of the threaded rod 2341 limits the lifting frame 233, so that the lifting frame 233 can only move in the vertical direction. When the threaded rod 2341 rotates, the lifting frame 233 starts to descend from the highest position. It is worth noting that when the lifting frame 233 is at the highest position, the linear driver first drives the pressing rod 231 to extend, so that the pressing rod 231 passes through the second gap and the first gap in sequence, and then the lifting frame 233 starts to descend again.

[0047] Reference Figure 1 and Figure 4 : An upper connecting seat 4 is arranged on the upper part of the bracket 2, and a second linear drive 41 for driving the upper connecting seat 4 to move in the vertical direction is arranged on the upper part of the upper connecting seat 4. When the pressing rod 231 is not extended, the upper connecting seat 4 is at the highest position of the moving path of the upper connecting seat 4. After the pressing rod 231 is extended, the upper connecting seat 4 descends in the vertical direction to the lowest position of the moving path of the upper connecting seat 4.

[0048] When the upper connecting seat 4 drops to the lowest position, the upper connecting seat 4 can be connected to the upper interface of the terminal wiring harness 3, and when the terminal wiring harness 3 is pushed in from the opening of the support groove 21 in sequence, the upper connecting seat 4 is in the highest position, so that the upper connecting seat 4 gives up the moving area of ​​the terminal wiring harness 3 on the support groove 21, ensuring that the terminal wiring harness 3 can be smoothly pushed into the support groove 21.

[0049] Reference Figure 4-Figure 6 : A lower connecting seat 5 is provided at the lower part of the bracket 2 for movement in the vertical direction. The moving path of the lower connecting seat 5 has a highest position and a lowest position. When the lifting frame 233 descends to the lowest position of the lifting frame 233, the lower connecting seat 5 is at the lowest position of the lower connecting seat 5.

[0050] Reference Figure 6: A mounting plate 53 is horizontally fixed on the side walls on both sides of the lower connecting seat 5, a wedge block 52 is movably arranged in the vertical direction on the upper part of the mounting plate 53, and a sliding rod 54 is fixedly arranged in the vertical direction on the lower part of the wedge block 52. The sliding rod 54 penetrates the mounting plate 53 in the vertical direction and slides with the mounting plate 53 in the vertical direction. There is a gap between the upper end of the sliding rod 54 and the mounting plate 53, and a spring 55 is arranged in the gap along the extension direction of the sliding rod 54. The two ends of the spring 55 are respectively fixedly connected to the upper part of the mounting plate 53 and the sliding rod 54, and the side of the upper part of the wedge block 52 close to the lower connecting seat 5 is inclined toward the lower connecting seat 5.

[0051] When the lifting frame 233 drives the pressing rod 231 to descend to the lowest position, the lower connecting seat 5 is at the lowest position on the moving path of the lower connecting seat 5, that is, the pressing rod 231 is in contact with the upper part of the lower interface of the terminal harness 3, and the terminal harness 3 is in a straightened state, but the lower interface of the terminal harness 3 is not connected to the lower connecting seat 5. This is because in the process of the pressing rod 231 combing and straightening the terminal harness 3, the terminal harness 3 will be slightly offset along the width direction of the support groove 21, so that the lower interface of the terminal harness 3 cannot be connected with the lower In order to avoid the above situation that the connecting seat 5 is connected smoothly, wedge blocks 52 are set on both sides of the lower connecting seat 5, and the lower interface of the terminal wiring harness 3 is corrected by the inclined structure on the upper part of the wedge block 52, so that the lower interface of the terminal wiring harness 3 after correction can be smoothly connected to the lower connecting seat 5, and the spring 55 set at the lower part of the wedge block 52 can provide the wedge block 52 with a moving clearance in the vertical direction, so as to avoid the wedge block 52 from over-squeezing the lower interface of the terminal wiring harness 3 when correcting the lower interface of the terminal wiring harness 3.

[0052] Reference Figure 8 , Fig. 9 and Fig.11 : When the lifting frame 233 is at the lowest position, a fixing unit 6 is arranged on the bracket 2 on one side, and the fixing unit 6 includes a fixing plate 62 which moves along the width direction of the supporting groove 21, and a fourth linear driver 63 for driving the fixing plate 62 to move is horizontally arranged on one side of the fixing plate 62, and a fixing block 61 is fixedly arranged at the lower part of the pressing rod 231, and the fixing block 61 and the fixing plate 62 clamp the lower interface of the terminal harness 3.

[0053] After the test is completed, it is necessary to separate the lower interface of the terminal harness 3 and the lower connecting seat 5 after the test, while the upper interface of the terminal harness 3 and the upper connecting seat 4 can be separated manually, and wedge blocks 52 are provided on both sides of the lower connecting seat 5, and the lower interface of the terminal harness 3 is located in the bracket 2 and cannot be separated manually. In this way, the lower interface of the terminal harness 3 needs to be fixed by setting a fixing unit 6, and then the lower connecting seat 5 is lowered, so that the lower interface of the terminal harness 3 can be separated from the lower connecting seat 5 smoothly. After the test is completed , the fixing unit 6 is started, and the fourth linear drive 63 drives the fixing plate 62 to move toward the lower interface of the terminal wiring harness 3, and presses the lower interface of the terminal wiring harness 3 on the fixing block 61, and then the lower connecting seat 5 descends. The lower interface of the terminal wiring harness 3 is clamped by the fixing block 61 and the fixing plate 62 and will not be pulled by the lower connecting seat 5, thereby avoiding the lower connecting seat 5 from causing traction tension on the wiring harness in the terminal wiring harness 3 when descending, thereby avoiding the terminal wiring harness 3 from being disconnected during the separation process of the lower connecting seat 5 and the lower interface of the terminal wiring harness 3.

[0054] Reference Figure 6 and Figure 7 : A plurality of warning lights 24 are arranged on the side wall of the bracket 2, and the number of the warning lights 24 corresponds to the number of the terminal harnesses 3 arranged on the support groove 21. The upper connecting seat 4, the lower connecting seat 5 and the warning lights 24 are connected in series in sequence. When the terminal harness 3 is turned on, the warning lights 24 light up, and when the terminal harness 3 is not turned on, the warning lights 24 cannot light up.

[0055] When the support grooves 21 are fully loaded, the number of the terminal harnesses 3 corresponds to the number of the prompt lights 24 , and the staff can judge the conduction status of the terminal harnesses 3 according to the on and off of the prompt lights 24 .

[0056] Reference Figure 3 A slot is provided at one side of the open end of the support slot 21 along the width direction of the support slot 21, and an inserting plate 25 is slidably provided on the slot along the extending direction of the slot.

[0057] Before the staff pushes the terminal harness 3 into the opening of the support groove 21 one by one, it is necessary to remove the plug plate 25 set at the slot, and then push the terminal harness 3 into the support groove 21 one by one. When the terminal harness 3 in the support groove 21 is full, insert the plug plate 25 into the slot. At this time, the plug plate 25 has a limiting effect on the terminal harness 3, that is, the terminal harness 3 located in the support groove 21 will no longer move along the extension direction of the support groove 21, ensuring that the upper connecting seat 4 can be smoothly connected to the upper interface of the terminal harness 3.

[0058] Working principle: During the test, the terminal wiring harness 3 is pushed into the support groove 21 from one end of the support groove 21 in sequence. The upper interface and the lower interface of the terminal wiring harness 3 are respectively located at the upper and lower parts of the support groove 21. The support groove 21 can accommodate a rated number of terminal wiring harnesses 3. After the rated number of terminal wiring harnesses 3 are pushed into the support groove 21 in sequence, the test equipment is started. The test equipment includes an upper connecting seat 4 located at the upper part of the bracket 2 and a lower connecting seat 5 located at the lower part of the bracket 2. When the test equipment is started, the upper connecting seat 4 gradually descends in the vertical direction and connects with the interface on the upper part of the terminal harness 3. Since the terminal harness 3 arranged on the support groove 21 is suspended on the support groove 21, the upper interface of the terminal harness 3 is tightly fitted with the upper part of the bracket 2, and the interface of the terminal harness 3 will not be tilted. When the upper connecting seat 4 is connected to the interface on the upper part of the terminal harness 3, the pressing rod 231 will also move in the horizontal direction. The pressing rod 231 passes through the second gap and the first gap in turn, and then the pressing rod 231 moves from top to bottom in the vertical direction. The pressing rod 231 Move from top to bottom in the second gap, comb the multiple single wire harnesses in the terminal harness 3, so that the bent terminal harness 3 is straightened, then the lower connecting seat 5 rises and connects with the interface at the bottom of the terminal harness 3, and a warning light 24 is set on the bracket 2, and the warning light 24 is connected in series with the lower connecting seat 5, and then the upper connecting seat 4 is powered on, if the terminal harness 3 has no conduction problem, the warning light 24 lights up, if the terminal harness 3 has a conduction problem, the warning light 24 cannot light up, so that the conduction test of the terminal harness 3 can be automatically completed without damaging the terminal harness 3. The workload during the test is reduced, and the terminal harness 3 is prevented from being damaged during the automatic test.

[0059] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A terminal harness continuity test device, comprising a base (1) and a bracket (2) arranged on the upper part of the base (1); It is characterized in that A support groove (21) is provided at the upper part of the support (2) along the length direction of the support (2), one end of the support groove (21) is open, a plurality of terminal harnesses (3) are evenly arranged on the support groove (21) along the extension direction of the support groove (21), the terminal harnesses (3) penetrate the support groove (21), an extension plate (22) is fixedly provided at the lower part of the support groove (21) along the vertical direction, the extension plates (22) are evenly arranged along the extension direction of the support groove (21), and a first gap exists between adjacent extension plates (22), A second gap exists between adjacent single wire harnesses in the terminal wire harness (3), and the size of the first gap is equal to the size of the second gap. A wire management unit (23) is also provided below the support groove (21), and the wire management unit (23) is located on a side of the terminal wire harness (3) away from the extension plate (22). The wire management unit (23) includes a pressing rod (231) that moves in a horizontal direction. When the pressing rod (231) moves in the horizontal direction, it passes through the second gap and the first gap in sequence, and then the pressing rod (231) moves from top to bottom in the vertical direction.

2. A terminal harness continuity test device according to claim 1, characterized in that: A lifting frame (233) is arranged on one side of the bracket (2) to move in the vertical direction, a lifting unit (234) is arranged on the lifting frame (233), a highest position exists on the vertical moving path of the lifting frame (233), a first linear driver (232) is arranged horizontally on the lifting frame (233), an output end of the first linear driver (232) is horizontally oriented toward the extension plate (22), a pressing rod (231) is fixedly arranged on the output end of the first linear driver (232), when the lifting frame (233) is at the highest position, the upper end surface of the pressing rod (231) is flush with the lower end surface of the support groove (21), and when the first linear driver (232) drives the pressing rod (231) to extend, the lifting frame (233) is at the highest position.

3. A terminal harness continuity test device according to claim 2, characterized in that: The vertical moving path of the lifting frame (233) also includes a lowest position, and the distance between the highest position and the lowest position of the lifting frame (233) is the same as the length of the terminal harness (3).

4. A terminal harness continuity test device according to claim 2, characterized in that: The lifting unit (234) comprises a threaded rod (2341) and a rotation driver (2342). The threaded rod (2341) is arranged on one side of the bracket (2) in a vertical direction. The threaded rod (2341) penetrates the lifting frame (233) and is threadedly matched with the lifting frame (233). The rotation driver (2342) for driving the threaded rod (2341) to rotate is arranged at the upper end of the threaded rod (2341).

5. The terminal harness continuity test device according to claim 2, characterized in that: An upper connecting seat (4) is arranged on the upper part of the bracket (2), and a second linear drive (41) for driving the upper connecting seat (4) to move in a vertical direction is arranged on the upper part of the upper connecting seat (4); when the pressing rod (231) is not extended, the upper connecting seat (4) is at the highest position of the upper connecting seat (4) moving path; after the pressing rod (231) is extended, the upper connecting seat (4) descends in the vertical direction to the lowest position of the upper connecting seat (4) moving path.

6. A terminal harness continuity test device according to claim 5, characterized in that: A lower connecting seat (5) is arranged at the lower part of the bracket (2) to move in the vertical direction, and the moving path of the lower connecting seat (5) has a highest position and a lowest position. When the lifting frame (233) descends to the lowest position of the lifting frame (233), the lower connecting seat (5) is at the lowest position of the lower connecting seat (5).

7. A terminal harness continuity test device according to claim 6, characterized in that: A mounting plate (53) is fixedly arranged horizontally on the side walls on both sides of the lower connecting seat (5), a wedge block (52) is arranged on the upper part of the mounting plate (53) to move in the vertical direction, a sliding rod (54) is fixedly arranged on the lower part of the wedge block (52) in the vertical direction, the sliding rod (54) penetrates the mounting plate (53) in the vertical direction and slides with the mounting plate (53) in the vertical direction, there is a gap between the upper end of the sliding rod (54) and the mounting plate (53), a spring (55) is arranged in the gap along the extension direction of the sliding rod (54), the two ends of the spring (55) are fixedly connected to the mounting plate (53) and the upper part of the sliding rod (54), respectively, and the side of the upper part of the wedge block (52) close to the lower connecting seat (5) is inclined toward the lower connecting seat (5).

8. The terminal harness continuity test device according to claim 2, characterized in that: When the lifting frame (233) is at the lowest position, a fixing unit (6) is arranged on the bracket (2) on one side, the fixing unit (6) comprises a fixing plate (62) that moves along the width direction of the supporting groove (21), a fourth linear driver (63) for driving the fixing plate (62) to move is arranged horizontally on one side of the fixing plate (62), a fixing block (61) is fixedly arranged at the lower part of the pressing rod (231), and the fixing block (61) and the fixing plate (62) clamp the lower interface of the terminal harness (3).

9. The terminal harness continuity test device according to claim 6, characterized in that: A plurality of warning lights (24) are arranged on the side wall of the bracket (2), the number of the warning lights (24) corresponds to the number of terminal harnesses (3) arranged on the support groove (21), the upper connecting seat (4), the lower connecting seat (5) and the warning lights (24) are electrically connected to each other and are sequentially connected in series, when the terminal harness (3) is conducting, the warning lights (24) are lit, and when the terminal harness (3) is not conducting, the warning lights (24) cannot be lit.

10. The terminal harness continuity test device according to claim 1, characterized in that: A slot is provided at one side of the open end of the support slot (21) along the width direction of the support slot (21), and an inserting plate (25) is slidably provided on the slot along the extending direction of the slot.

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