Modularized wire harness detection jig assembly

Abstract

The utility model discloses a modularized wire harness detection jig assembly, which comprises a jig and a base, and is characterized in that the jig can be spliced in the base in an inserting manner; a circuit and / or gas circuit detection device is arranged in the jig, and a circuit and / or gas circuit connecting mechanism is arranged between the jig and the base, so that when the jig and the base are inserted, the circuit and / or gas circuit between the jig and the base are communicated. The jig assembly is applied to the field of wire harness detection, and has the advantages that the matching connection process can be automatically completed only through one insertion action of a user, user operation is easy and convenient, consumed time is short, efficiency is high, and errors are not prone to occurring. Meanwhile, the function that different jigs can be replaced in a plug-in disassembly and assembly mode is achieved, disassembly and assembly are convenient and rapid, circuit and / or gas circuit connection is stable, a detection environment can be rapidly set up when different wire harnesses are detected, and therefore the convenience of wire harness detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness detection, in particular to a modular wire harness detection fixture assembly. Background Art

[0002] The wire harness detection fixture is a key component of the wire harness detection device. It is mainly used to achieve physical docking with the wire harness plug to be tested, establish circuit connection and / or air connection between the plug and the main unit of the wire harness detection device, thereby providing a detection environment for subsequent wire harness function and performance testing.

[0003] In actual work, each wiring harness usually has multiple types of plug structures, and the plug structures of different wiring harnesses are even more diverse. In order to achieve the matching of different wiring harnesses and different types of plugs, it is usually necessary to preset multiple types of jigs in advance. In the prior art, the jig is generally fixedly connected to the operating surface of the wiring harness detection device through connectors (such as bolts). In actual work, the user first selects the jigs required for detection one by one, and then uses the connector to install the corresponding jigs at the corresponding positions on the operating surface of the wiring harness detection device, and then connects the electrical interface of the jig to the circuit interface and air path interface of the host of the wiring harness detection device one by one through wires and air ducts, and finally realizes that all the required jigs are installed in the wiring harness detection device. In order to realize the detection of different wiring harnesses, the wiring harness detection device needs to frequently adjust the number, type and position of the jigs, which requires the user to frequently disassemble and assemble the jigs and repeat the electrical interface connection.

[0004] The jigs in the prior art have the following defects: first, the jig disassembly and assembly operations are cumbersome, resulting in low user work efficiency; second, the interface structure of most wiring harness plugs is relatively complex, so the electrical connection between the jig and the host is also very complicated, which makes it very easy for users to make mistakes when manually connecting the wires and air ducts between the jig and the host. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide a modular wire harness detection fixture assembly that is simple and quick to operate and not prone to errors.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model discloses a modular wire harness detection jig assembly, comprising a jig and a base, wherein the jig is detachably slidably inserted into the interior of the base; a circuit and / or air path detection device is provided inside the jig, and a circuit and / or air path connection mechanism is provided between the jig and the base, so that when the jig and the base are inserted, the circuit and / or air path between the jig and the base are connected.

[0008] Preferably, the circuit connection mechanism in the circuit and / or air path connection mechanism includes two probe mother boards and two probe male boards, wherein the two probe mother boards are both installed at the front end of the jig, and one of the probe mother boards is perpendicular to the other probe mother board and is located on the lower right side thereof, and the two probe male boards are both located inside the front end of the base, and the two probe male boards correspond to the positions of the two probe mother boards, so that when the jig and the base are plugged in, the two probe male boards are correspondingly connected to the two probe mother boards, so that the circuit between the jig and the base is connected.

[0009] Preferably, the air path connection mechanism in the circuit and / or air path connection mechanism includes two first air path interfaces and two air path connection seats, wherein the two first air path interfaces are both installed at the front end of the jig, and the two air path connection seats are both located inside the front end of the base, and the two first air path interfaces and the two air path connection seats correspond in position, so that when the jig and the base are plugged in, the two first air path interfaces and the two air path connection seats are correspondingly connected, so that the air path between the jig and the base is connected.

[0010] Preferably, one end of the gas circuit connection seat extends to the outside of the base and is connected to the second gas circuit interface, and the gas circuit connection seat is located on one side inside the base and is provided with a socket for inserting the first gas circuit interface.

[0011] Preferably, two locking pressure plates are symmetrically installed inside the front end of the base between the two air path connecting seats. The locking pressure plates are elastic and rigid and adopt an L-shaped structure, so that the locking pressure plates can be deformed by external force and return to their original state when the external force disappears. A hole structure that can coincide with the jack is provided on the horizontal end of the locking pressure plate. The horizontal ends of the two locking pressure plates are slidably inserted into the two air path connecting seats respectively. A locking opening is provided on the outer wall of the first air path interface. When the jig and the base are plugged in and the locking pressure plate is not subjected to other external forces, the hole structures on the horizontal ends of the two locking pressure plates are misaligned with the jack, so that the hole The edge of the structure is engaged in the locking opening on the first air circuit interface, locking the first air circuit interface, that is, locking the jig, and a through hole extending between the two locking pressure plates is opened on the surface of the jig. Such a structural arrangement allows for when a disassembly tool is inserted into the through hole, when the front end of a flat-blade screwdriver is inserted into the through hole between the two locking pressure plates, the screwdriver is rotated so that the horizontal ends of the two locking pressure plates are simultaneously pressed outward, and when the two locking pressure plates are squeezed so that their hole structure coincides with the jack, that is, the horizontal end of the locking pressure plate is disengaged from the locking opening on the first air circuit interface, the first air circuit interface is unlocked, that is, the jig is unlocked, and the jig can be directly pulled out for disassembly, which is easy to operate.

[0012] Preferably, one side of the jig is provided with an inner shell guide groove along the length direction, and the other side is provided with a jig guide rail, one side of the base is provided with a base guide rail along the length direction, and the other side is provided with a base guide groove, wherein the base guide rail is adapted to the inner shell guide groove, and the jig guide rail is adapted to the base guide groove, so when the jig is inserted into the base, the jig is more accurately positioned, thereby ensuring stable circuit and / or air path communication between the jig and the base.

[0013] Preferably, the base guide groove and the inner shell guide groove are staggered, or the base guide groove and the base guide groove have different widths, so that when the jig is inserted into the base, it will not be inserted upside down.

[0014] Preferably, the sides of the fixture and the base are provided with a plurality of heat dissipation holes for assisting heat dissipation, and the outer wall of the base adopts a grid structure to improve the overall heat dissipation performance of the fixture.

[0015] Preferably, the base adopts a U-shaped structure, and both side edges of the base are provided with ears protruding outward, the tail end of the fixture is provided with an inner shell tail plate, and the edges of the ears and the inner shell tail plate are provided with multiple mounting holes.

[0016] Preferably, a narrow tapered surface structure is provided at the middle position of the side of the jig, so that the front and rear ends of the jig form a stepped variable cross-section structure at the position of the narrow tapered surface structure. In this way, when the jig is inserted and assembled into the base, an interference fit clamping effect is formed between the jig and the base, thereby making the installation of the jig more stable.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The modular wire harness detection fixture assembly provided by the present invention is applied to the field of wire harness detection. It enables the main unit of the wire harness detection device to connect the circuit and / or air path with the fixture through the base, achieving a matching connection between the electrical structures of the main unit and the fixture. The matching connection process only requires a single insertion action by the user and can be automatically completed. The user operation is simple and convenient, time-saving, efficient, and error-prone. At the same time, it also realizes the function of replacing different fixtures through plug-in and disassembly. The disassembly is convenient and fast, and the circuit and / or air path connection is stable, which is conducive to quickly setting up the detection environment when performing different wire harness tests, thereby improving the convenience of wire harness testing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the fixture structure in the utility model;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0022] Figure 4 This is a structural diagram of the fixture in the present invention from another perspective;

[0023] Figure 5 This is a schematic diagram of the inner shell tail plate structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the base structure in the utility model;

[0025] Figure 7 For this utility model Figure 6 Schematic diagram of the enlarged structure of the middle B area;

[0026] Figure 8 This is a schematic diagram of the structure of the base slide rail in the utility model;

[0027] Figure 9 This is a structural schematic diagram of the base from another perspective in the present invention.

[0028] Figure numerals: 10, fixture; 100, through hole; 101, first air path interface; 1010, locking port; 102, probe motherboard; 103, fixture guide rail; 104, heat dissipation hole; 105, narrow slope structure; 106, inner shell tail plate; 107, inner shell guide groove; 11, base; 110, air path connecting seat; 1100, jack; 1101, locking pressure piece; 111, second air path interface; 112, probe male board; 113, base guide groove; 116, ear; 117, base guide rail. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 To the attached Figure 9 , further illustrating the specific implementation of the modular wire harness detection fixture assembly of the utility model. The modular wire harness detection fixture assembly of the utility model is not limited to the description of the following embodiments.

[0030] The wiring harness detection device is a device for detecting the electrical connectivity of the wiring harness. Some wiring harness detection devices also have a pneumatic detection function, which can detect the connection lock of the wiring harness plug, the air tightness after locking, etc. through the pneumatic detection component. The fixture described in the present utility model is a key component of the wiring harness detection device, and its functions include achieving physical connection (electrical connection and / or air connection) with the wiring harness plug to be tested. The prior art of the wiring harness detection device can refer to the Chinese patent application "A circuit matching method, device, electronic device and storage medium (application number: CN202310877989.3)" and other documents. After the above-mentioned Chinese patent application is cited by this patent, it should be deemed that all the contents recorded therein have been recorded in this patent.

[0031] The utility model provides a modular wire harness detection fixture assembly, such as Figure 1 As shown, it includes a jig 10 and a base 11, wherein the jig 10 is detachably slidably inserted into the interior of the base 11; a circuit and / or air path detection device is provided inside the jig 10, and a circuit and / or air path connection mechanism is provided between the jig 10 and the base 11, so that when the jig 10 and the base 11 are inserted, the circuit and / or air path between the jig 10 and the base 11 are connected. Specifically, the jig 10 can be inserted into the base 11 by plugging (i.e., plug-in fitting), thereby achieving an electrical connection between the electrical interface of the jig 10 and the base 11 (i.e., the connection of the circuit interface and the connection of the air path interface), and then, through the electrical connection structure provided by the base 11 itself, an electrical connection is achieved between the jig 10 and the host of the wiring harness detection device. The jig 10 is provided with a circuit and / or air path detection device, and the jig 10 is also provided with an interface that matches the wiring harness plug to be detected to achieve docking with the plug. The circuit and / or air path detection device and the interface can be set with reference to the existing technology and do not fall within the scope of protection claimed by this patent.

[0032] An embodiment of the present invention provides a pluggable fixture assembly that can be used for wire harness detection. By providing a base 11 with a universal structure and pre-setting the base 11 on all fixture installation positions of the wire harness detection device, when a different fixture 10 is subsequently installed or replaced, the user only needs to perform a single plug-in operation to install or replace the fixture 10, and at the same time, the electrical structure of the fixture 10 is connected to the host of the wire harness detection device.

[0033] In one embodiment, Figure 2-8As shown, the circuit connection mechanism in the circuit and / or air path connection mechanism includes two probe mother boards 102 and two probe male boards 112, wherein the two probe mother boards 102 are both installed at the front end of the jig 10, and one of the probe mother boards 102 is perpendicular to the other probe mother board 102 and is located on its lower right side, and the two probe male boards 112 are both located inside the front end of the base 11, and the two probe male boards 112 correspond to the positions of the two probe mother boards 102, so that when the jig 10 and the base 11 are plugged in, the two probe male boards 112 are correspondingly connected to the two probe mother boards 102, so that the circuit between the jig 10 and the base 11 is connected.

[0034] Specifically, by providing a probe motherboard 102 and a probe male board 112 for use together, when the user inserts the fixture 10 into the base 11, the circuit connection of the electrical interface between the fixture 10 and the base 11 can be automatically achieved. The number of the probe motherboards 102 and the probe male board 112 can be two, or one or more, and the number of corresponding terminals thereon is not limited. This can be flexibly set according to the specific number of terminals of the fixture circuit interface, and all of them belong to the same or equivalent technical solutions or technical features as the present embodiment.

[0035] In one embodiment, the air path connection mechanism in the circuit and / or air path connection mechanism includes two first air path interfaces 101 and two air path connection seats 110, wherein the two first air path interfaces 101 are both installed at the front end of the fixture 10, and the two air path connection seats 110 are both located inside the front end of the base 11. The two first air path interfaces 101 and the two air path connection seats 110 correspond in position, so that when the fixture 10 and the base 11 are plugged in, the two first air path interfaces 101 and the two air path connection seats 110 are correspondingly connected, so that the air path between the fixture 10 and the base 11 is connected.

[0036] Specifically, the jig generally needs to be provided with two sets of air circuit interfaces, such as the first air circuit interface 101 and the air circuit connection seat 110 used in conjunction with each other as disclosed in this embodiment. The two preferably adopt a quick docking method to achieve plug-in cooperation between the jig 10 and the base 11. Usually, one of them can be used to control the plug locking device of the jig to lock or release the plug to ensure a reliable connection between the plug and the jig during the detection process; the other can be used to detect the air tightness of the plug connection. Depending on the actual application needs, no or other numbers of air circuit interfaces and air circuit connection seats may be provided, which should be regarded as the same or equivalent technical solutions or technical features as those in this embodiment.

[0037] In one embodiment, one end of the gas connection base 110 extends to the outside of the base 11 and is connected to the second gas circuit interface 111 , and a side of the gas connection base 110 located inside the base 11 is provided with a socket 1100 for inserting the first gas circuit interface 101 .

[0038] Specifically, the second air path interface 111 is provided to connect the air path of the fixture to the main unit. Since the base 11 is fixedly connected to the wire harness detection device and does not need to be frequently disassembled and replaced like the fixture, the second air path interface 111 does not need to use a quick docking method like the first air path interface 101. For example, a traditional connection method such as a clamp connection is feasible.

[0039] In one embodiment, two locking pressure plates 1101 are symmetrically installed inside the front end of the base 11 between the two air path connecting seats 110. The locking pressure plates 1101 are elastic and rigid and adopt an L-shaped structure, so that the locking pressure plates 1101 can be deformed by external force and return to their original state when the external force disappears. A hole structure that can coincide with the socket 1100 is provided on the horizontal end of the locking pressure plate 1101. The horizontal ends of the two locking pressure plates 1101 are slidably inserted into the two air path connecting seats 110 respectively, and a locking opening 1010 is provided on the outer wall of the first air path interface 101. When the fixture 10 and the base 11 are inserted and the locking pressure plate 1101 is not subjected to other external forces, the hole structures on the horizontal ends of the two locking pressure plates 1101 are misaligned with the socket 1100, so that the edges of the hole structures are engaged in the locking opening 1010 on the first air path interface 101, locking the first air path interface 101, that is, locking the fixture 10.

[0040] Specifically, a through hole 100 extending between the two locking pressure plates 1101 is provided on the surface of the front side of the fixture 10 (i.e., the operating surface used by the user to plug in the plug, which is opposite to the side where the electrical interface is set and the base 11 is inserted). The user can insert a disassembly tool (such as a flat-bladed screwdriver or other similar tools) into the through hole 100. When the front end of the flat-bladed screwdriver is inserted into the position between the two locking pressure plates 1101, the screwdriver is rotated to enlarge the space on both sides of the front end of the screwdriver, and the horizontal ends of the two locking pressure plates 1101 can be pressed to move outward on both sides at the same time until the two locking pressure plates 1101 are squeezed so that their hole structure coincides with the socket 1100, that is, the horizontal end of the locking pressure plate 1101 is disengaged from the locking port 1010 on the first air circuit interface 101. At this time, the first air circuit interface 101 is unlocked, that is, the fixture 10 is unlocked, and the user can directly pull out the fixture 10, thereby realizing the removal of the fixture 10 from the base 11. On the contrary, when the user needs to install the jig 10, he only needs to insert the jig 10 directly into the base 11, and press down slightly when it is close to the bottom. Under the pressure of the front end of the first air circuit interface 101, the horizontal ends of the two locking pressure plates 1101 are pushed outward on both sides until the first air circuit interface 101 is locked with the air circuit connection seat 110. This structure has the following benefits: first, only one set of devices is required, which not only realizes the rapid installation or removal between the first air circuit interface 101 and the connection seat 110, but also realizes the rapid installation or removal function between the jig 10 and the base 11, which is simple and convenient for users to operate; second, the two devices can be unlocked and separated by using special tools or general screwdrivers, without the need to set up a special unlocking structure, making the overall structure of the jig more concise.

[0041] In one embodiment, Figure 4 、 Figure 6 、 Figure 8 As shown, one side of the jig 10 is provided with an inner shell guide groove 107 along the length direction, and the other side is provided with a jig guide rail 103, one side of the base 11 is provided with a base guide rail 117 along the length direction, and the other side is provided with a base guide groove 113, wherein the base guide rail 117 is adapted to the inner shell guide groove 107.

[0042] Specifically, the jig guide rail 103 corresponds to the base guide groove 113, so when the jig 10 is inserted into the base 11, the jig 10 is more accurately positioned, thereby ensuring the precise positioning of the relative position between the jig 10 and the base 11 after locking, and ensuring stable circuit and / or gas path communication between the two.

[0043] In one embodiment, the base guide groove 113 and the inner shell guide groove 107 are staggered, or the base guide groove 113 and the base guide groove 113 have different widths.

[0044] Specifically, the above structure can ensure that the fixture 10 will not be inserted upside down when it is inserted into the base 11.

[0045] In one embodiment, Figure 1 、 Figure 2 As shown, the sides of the fixture 10 and the base 11 are both provided with a plurality of heat dissipation holes 104 for assisting heat dissipation, and the outer wall of the base 11 adopts a grid structure.

[0046] Specifically, since the fixture has a circuit structure inside, there is a possibility of heat generation, so the overall heat dissipation performance of the fixture can be improved by providing heat dissipation holes 104. At the same time, providing heat dissipation holes 104 can also reduce the weight of the fixture 10 without reducing the strength of the base.

[0047] In one embodiment, Figure 1 、 Figure 2 、 Figure 8 As shown, the base 11 adopts a U-shaped structure, and both side edges of the base 11 are provided with ears 116 protruding outward, and the tail end of the fixture 10 is provided with an inner shell tail plate 106, and the edges of the ears 116 and the inner shell tail plate 106 are provided with multiple mounting holes.

[0048] Specifically, by providing the ears 116 and their mounting holes, the base 11 and the wiring harness detection device can be connected and fixed. Also, by providing the inner shell tail plate 106 and its mounting holes, the fixture 10 and the base 11 can be further connected and fixed.

[0049] In one embodiment, Figure 4 As shown, a narrow tapered surface structure 105 is provided at the middle portion of the side surface of the fixture 10 , so that the front and rear ends of the fixture 10 form a stepped variable cross-section structure at the position of the narrow tapered surface structure 105 .

[0050] Specifically, by adopting the above structure, when the jig 10 is inserted and assembled into the base 11, the first inserted part of the jig 10 can be more easily inserted into the base 11, and the later inserted part can form an interference fit with the base 11 to achieve a clamping effect, thereby making the installation of the jig 10 more stable.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A modular wire harness inspection fixture assembly, characterized by: The invention comprises a jig (10) and a base (11), wherein the jig (10) can be assembled inside the base (11) in an insertion manner; a circuit and / or air path detection device is provided inside the jig (10), and a circuit and / or air path connection mechanism is provided between the jig (10) and the base (11), so that when the jig (10) and the base (11) are inserted, the circuit and / or air path between the jig (10) and the base (11) are connected.

2. The modular wire harness detection fixture assembly according to claim 1, characterized in that: The circuit connection mechanism in the circuit and / or gas path connection mechanism includes two probe mother boards (102) and two probe male boards (112), wherein the two probe mother boards (102) are both installed at the front end of the jig (10), and one of the probe mother boards (102) is perpendicular to the other probe mother board (102) and is located on the lower right side thereof, and the two probe male boards (112) are both located inside the front end of the base (11), and the two probe male boards (112) correspond to the positions of the two probe mother boards (102), so that when the jig (10) and the base (11) are plugged in, the two probe male boards (112) are correspondingly connected to the two probe mother boards (102), so that the circuit between the jig (10) and the base (11) is connected.

3. The modular wire harness detection fixture assembly according to claim 2, characterized in that: The gas path connection mechanism in the circuit and / or gas path connection mechanism comprises two first gas path interfaces (101) and two gas path connection seats (110), wherein the two first gas path interfaces (101) are both installed at the front end of the jig (10), and the two gas path connection seats (110) are both located inside the front end of the base (11), and the two first gas path interfaces (101) and the two gas path connection seats (110) correspond in position, so that when the jig (10) and the base (11) are plugged in, the two first gas path interfaces (101) and the two gas path connection seats (110) are correspondingly connected, so that the jig (10) and the base (11) are gas-connected.

4. The modular wire harness detection fixture assembly according to claim 2, characterized in that: One end of the gas circuit connection seat (110) extends to the outside of the base (11) and is connected to a second gas circuit interface (111); a side of the gas circuit connection seat (110) located inside the base (11) is provided with a socket (1100) for inserting the first gas circuit interface (101).

5. The modular wire harness detection fixture assembly according to claim 4, characterized in that: Two locking pressing pieces (1101) are symmetrically installed inside the front end of the base (11) and between the two air path connecting seats (110). The locking pressing pieces (1101) are elastic and rigid and adopt an L-shaped structure, so that the locking pressing pieces (1101) can be deformed by external force and return to their original state when the external force disappears. The horizontal end of the locking pressure piece (1101) is provided with a hole structure that can overlap with the socket (1100), and the horizontal ends of the two locking pressure pieces (1101) are respectively slidably inserted into the two air path connection seats (110), and the outer wall of the first air path interface (101) is provided with a locking opening (1010). When the jig (10) and the base (11) are inserted, the hole structure on the horizontal ends of the two locking pressure pieces (1101) is misaligned with the socket (1100), so that the edge of the hole structure is engaged in the locking opening (1010) on the first air path interface (101), thereby locking the first air path interface (101).

6. The modular wire harness detection fixture assembly according to claim 1, characterized in that: One side of the jig (10) is provided with an inner shell guide groove (107) along the length direction, and the other side is provided with a jig guide rail (103); one side of the base (11) is provided with a base guide rail (117) along the length direction, and the other side is provided with a base guide groove (113), wherein the base guide rail (117) is adapted to correspond to the inner shell guide groove (107), and the jig guide rail (103) is adapted to correspond to the base guide groove (113).

7. The modular wire harness detection fixture assembly according to claim 6, characterized in that: The base guide groove (113) and the inner shell guide groove (107) are staggered, or the base guide groove (113) and the base guide groove (113) have different widths.

8. The modular wire harness detection fixture assembly according to claim 1, characterized in that: The sides of the fixture (10) and the base (11) are both provided with a plurality of heat dissipation holes (104) for assisting heat dissipation, and the outer wall of the base (11) adopts a grid-like structure.

9. The modular wire harness detection fixture assembly according to claim 1, characterized in that: The base (11) adopts a U-shaped structure, and both side edges of the base (11) are provided with ears (116) protruding outwards, the tail end of the fixture (10) is provided with an inner shell tail plate (106), and the edges of the ears (116) and the inner shell tail plate (106) are provided with multiple mounting holes.

10. The modular wire harness detection fixture assembly according to claim 1, characterized in that: A narrow tapered surface structure (105) is provided at the middle portion of the side of the jig (10), so that the front and rear ends of the jig (10) form a stepped variable cross-section structure at the position of the narrow tapered surface structure (105).

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