Cable test fixture and test equipment

Abstract

The present invention discloses a wiring test fixture and a test device, including a base, a probe flap and a quick-change fixture. The probe flap includes a cover plate, a floating plate, a bearing plate and a probe module. The quick-change fixture includes a bottom plate, a shaping plate, a clamping member and an anti-fool slide block. The position of the probe module is adjustable through a floating connection between the floating plate and the cover plate, and positioning and guiding are performed through the positioning guide holes of the quick-change fixture and the positioning guide posts of the probe flap, so that the position of the probe module is adapted to the quick-change fixture, thereby improving the alignment accuracy of the probe and the test point; the anti-fool mating part of the cover plate and the anti-fool slide block cooperate to form an anti-fool structure, which can reduce the probability of damage to the probe module due to operational errors. The anti-fool slide block can also be clamped on the clamping flange to fix the quick-change fixture, reduce the probability of erroneous operation, and cooperate with the shaping plate to form a second product limiting structure, thereby limiting and fixing the product. The structure is simple and the functions are diverse.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and in particular to a wiring test fixture and testing equipment. Background Art

[0002] In the design of charging products, in order to save internal space and improve the compactness and portability of the product, the flexible cable often needs to be bent. This bending design not only helps to optimize the internal structure of the product, but also reduces the use of materials and reduces costs. Most of the connecting cables of charging products are straight structures or tested before pre-bending. However, the bent flexible cables may be affected by factors such as stress concentration and wear during long-term use, resulting in performance degradation or even failure. Therefore, performing a bending test is an important means to evaluate the performance stability and service life of the flexible cable in a bent state. The connecting cable of the charging product is improved from a straight structure to a 180° bending structure. The original test fixture is no longer applicable, and the manual test efficiency is low. In the development of the new test fixture, it was found that due to the small and dense size of the test points on the connecting cable, the probes that contact the test points are also small and dense, which is prone to the problem of misalignment between the probes and the test points, and the probes are easily damaged due to operational errors. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cable test fixture and a test device, which has a floating probe structure and a fool-proof structure, which can improve the alignment accuracy between the probe and the test point and reduce the probability of probe damage caused by operating errors.

[0004] On the one hand, an embodiment of the present invention provides a cable test fixture, including:

[0005] The base is provided with a fixture positioning groove and a limit lock structure, the fixture positioning groove is provided with a first positioning portion and a first avoidance position, and the inner wall of the first avoidance position is provided with a clamping flange;

[0006] The probe flip cover has a first end and a second end, the first end of the probe flip cover is connected to the base, the second end of the probe flip cover can rotate around the first end relative to the base and is movably connected to the limit lock structure to cover the fixture positioning groove, the probe flip cover includes a cover plate, a floating plate, a bearing plate and a probe module, one side edge of the cover plate is used as or provided with a foolproof matching portion, the floating plate is floatingly connected to the cover plate, the bearing plate is connected to the floating plate, the probe module is mounted on the bearing plate, and a positioning guide column is provided on the bearing plate;

[0007] The quick-change clamp is detachably installed in the clamp positioning groove, and the quick-change clamp comprises a base plate, a molding plate, a clamping piece and an anti-foolproofing slide block, the base plate is provided with a guide hole and a second positioning portion, the second positioning portion and the first positioning portion cooperate to form a positioning structure, the molding plate is installed on the base plate, at least one of the base plate and the molding plate is provided with a positioning guide hole, the positioning guide hole cooperates with the positioning guide column to form a positioning guide structure, the clamping piece is movably installed on the base plate and can cooperate with the first side of the molding plate to form a first product limiting structure, the anti-foolproofing slide block is slidably installed in the guide hole and partially penetrates into the first avoidance position, the anti-foolproofing slide block has a first working position and a second working position, in the first working position, the anti-foolproofing slide block and the anti-foolproofing matching portion form an anti-foolproofing structure; in the second working position, the anti-foolproofing slide block avoids the anti-foolproofing matching portion and is clamped to the clamping flange and cooperates with the second side of the molding plate to form a second product limiting structure.

[0008] According to some embodiments of the present invention, a hand-grip position is provided on an edge of the base and located on a first side of the fixture positioning groove.

[0009] According to some embodiments of the present invention, a first elastic pressing member is provided on the base and located on the second side of the clamp positioning groove, and the first elastic pressing member can abut against the quick-change clamp.

[0010] According to some embodiments of the present invention, the cover plate is provided with a plurality of limit columns, the floating plate is provided with a plurality of limit holes, the floating plate is sleeved on the plurality of limit columns of the cover plate through the plurality of limit holes, and a fine-tuning gap is provided between the inner wall of the limit hole and the limit column.

[0011] According to some embodiments of the present invention, a limit frame is provided on the cover plate and located on opposite sides of the floating plate, limit rollers are installed on opposite sides of the floating plate, the limit rollers are located in the limit frame, and a first elastic member is connected between the cover plate and the floating plate.

[0012] According to some embodiments of the present invention, the cover plate includes a first supporting frame and a second supporting frame that are nested with each other, a side edge of the first supporting frame is used as or set as the anti-foolproof fitting part, and there is a distance difference between the bottom surface of the first supporting frame and the bottom surface of the second supporting frame to form an anti-foolproof avoidance position, and the bottom surface of the first supporting frame and the bottom surface of the second supporting frame are both facing the quick-change clamp in the rotation direction of the cover plate.

[0013] According to some embodiments of the present invention, the anti-foolproofing slider is provided with an anti-foolproofing protrusion, a first crimping portion and a clamping portion, the anti-foolproofing protrusion and the first crimping portion are both located on the upper side of the base plate, the clamping portion is located on the lower side of the base plate, and in the second working position, the clamping portion and the base plate are respectively located on opposite sides of the clamping flange to be clamped to the clamping flange, and the first crimping portion cooperates with the second side of the shaping plate to form the second product limiting structure.

[0014] According to some embodiments of the present invention, a second elastic pressing member is provided on the bottom plate and located on the first side of the shaping plate, and the second elastic pressing member cooperates with the side wall of the shaping plate to form a third product limiting structure.

[0015] According to some embodiments of the present invention, the second elastic top pressure piece is located on the movement path of the clamping piece, and both the second elastic top pressure piece and the clamping piece are provided with magnetic suction pieces, and the clamping piece can be magnetically connected to the second elastic top pressure piece.

[0016] On the other hand, an embodiment of the present invention provides a testing device, including the above-mentioned cable testing fixture.

[0017] The embodiments of the present invention have at least the following beneficial effects:

[0018] The position of the probe module is adjustable through the floating connection between the floating plate and the cover plate, and the positioning guide is performed through the positioning guide holes and the positioning guide posts, so that the position of the probe module is adapted to the quick-change fixture, thereby improving the alignment accuracy of the probe and the test point; the fool-proof mating part of the cover plate and the fool-proof slider cooperate to form a fool-proof structure, which can reduce the probability of damage to the probe module due to operational errors, and the fool-proof slider can also be clamped on the clamping flange to fix the quick-change fixture and reduce the probability of erroneous operation, and cooperate with the shaping plate to form a second product limiting structure, thereby limiting and fixing the product, with a simple structure and diverse functions.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is a structural schematic diagram of a cable test fixture according to an embodiment of the present invention (quick-change fixture hidden);

[0022] Figure 2 This is a second structural diagram of the cable test fixture according to an embodiment of the present invention (the probe cover is in the open state);

[0023] Figure 3 This is the third structural schematic diagram of the cable test fixture according to an embodiment of the present invention (the probe cover is in the closed state);

[0024] Figure 4 for Figure 2 One of the structural schematic diagrams of the probe cover of the cable test fixture is shown;

[0025] Figure 5 for Figure 2 The second structural schematic diagram of the probe cover of the cable test fixture is shown;

[0026] Figure 6 for Figure 2 One of the structural schematic diagrams of the quick-change fixture of the cable test fixture shown;

[0027] Figure 7 for Figure 2 The second structural schematic diagram of the quick-change fixture of the cable test fixture is shown;

[0028] Figure 8 for Figure 2 The third structural schematic diagram of the quick-change fixture of the cable test fixture is shown (top view);

[0029] Fig. 9 for Figure 8 The cross-sectional structure diagram at the CC mark in the middle;

[0030] Fig.10 A schematic diagram of the structure of a target workpiece according to an embodiment of the present invention;

[0031] Fig.11 for Figure 1 The middle circle shows an enlarged view of the interior of position A;

[0032] Fig.12 for Figure 5 The middle circle shows a partial enlarged view of position B.

[0033] Reference numerals:

[0034] Base 100, fixture positioning groove 101, first positioning portion 102, first avoidance position 103, clamping flange 104, buckle position 105, second avoidance position 106, limit lock structure 110, first elastic top pressure member 120, first assembly structure 121, first guide cavity 1211, first top pressure block 122, second elastic member 123, interface assembly 130, interface module 131, connector 132, drive member 133, slide rail module 134, probe flip cover 200, cover plate 210, first carrier frame 211, limit frame 2111, second carrier frame 212, limit column 2121 , floating plate 220, limiting hole 221, limiting roller 222, bearing plate 230, positioning guide column 231, sleeve 232, probe module 240, quick-change fixture 300, bottom plate 310, guide hole 311, second positioning portion 312, shaping plate 320, positioning guide hole 321, clamping member 330, first connecting portion 331, second connecting portion 332, second crimping portion 333, anti-cracking slider 340, anti-cracking convex portion 341, first crimping portion 342, clamping portion 343, second elastic top pressing member 350, second assembly structure 351, second top pressing block 352, fourth elastic member 353. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0039] This embodiment discloses a test device, including a cable test fixture. Figure 1 and Figure 2 The cable test fixture includes a base 100, a probe cover 200 and a quick-change fixture 300. The base 100 is provided with a fixture positioning groove 101 and a limit lock structure 110. The fixture positioning groove 101 is provided with a first positioning portion 102 and a first avoidance position 103. The inner wall of the first avoidance position 103 is provided with a clamping flange 104; please refer to Figure 1 , Figure 2 and Figure 3 The probe flip cover 200 has a first end and a second end. The first end of the probe flip cover 200 is connected to the base 100. The second end of the probe flip cover 200 can rotate relative to the base 100 around the first end and is movably connected to the limiting locking structure 110 to cover the fixture positioning groove 101. The limiting locking structure 110 can be designed according to actual application needs. For example, the limiting locking structure 110 can be a snap-fit ​​part. When the probe flip cover 200 covers the fixture positioning groove 101, the snap-fit ​​part can be snap-fitted to the edge snap-fit ​​connection of the probe flip cover 200. For example, the limiting locking structure 110 is a screw-on component (not shown in the figure). When the probe flap 200 covers the fixture positioning slot 101, the screw-on component rotates a certain angle to limit the edge of the probe flap 200. For another example, the limiting locking structure 110 is a locking hole (not shown in the figure) provided on the base 100. The probe flap 200 is provided with a corresponding snap-on component or screw-on component. When the probe flap 200 covers the fixture positioning slot 101, the snap-on component or screw-on component on the probe flap 200 is inserted into the locking hole and cooperates with the locking hole for limiting. It should be conceivable that when the probe flap 200 covers the fixture positioning slot 101, the first end and the second end of the probe flap 200 are respectively located on opposite sides of the fixture positioning slot 101, for example, with the length direction of the fixture positioning slot 101 as the first direction (such as Figure 1 The left and right directions indicated in the figure), with the width direction of the fixture positioning groove 101 as the second direction (such as Figure 1 The first end and the second end of the probe flip cover 200 are respectively located on opposite sides of the second direction of the fixture positioning groove 101. Figure 2 , Figure 4 and Figure 5 The probe flip cover 200 includes a cover plate 210, a floating plate 220, a carrier plate 230 and a probe module 240. One side edge of the cover plate 210 is used as or provided with a foolproof mating portion (such as Figure 2As shown by mark P1 in the figure, the floating plate 220 is connected to the cover plate 210 in a floating manner, the carrying plate 230 is connected to the floating plate 220, the probe module 240 is installed on the carrying plate 230, and the carrying plate 230 is provided with a positioning guide column 231.

[0040] Please refer to Figure 1 and Figure 2 The quick-change fixture 300 can be detachably installed in the fixture positioning slot 101. Please refer to Figure 6 and Figure 7 The quick-change fixture 300 includes a base plate 310, a shaping plate 320, a pressing member 330 and an anti-stupid slider 340. The base plate 310 is provided with a guide hole 311 and a second positioning portion 312. Please refer to Figure 1 and Figure 7 The second positioning portion 312 cooperates with the first positioning portion 102 to form a positioning structure. For example, the first positioning portion 102 and the second positioning portion 312 are mutually adapted protrusions and recesses. For example, the first positioning portion 102 is a protrusion disposed on the base 100, and the second positioning portion 312 is a recess disposed at the bottom of the bottom plate 310; for another example, the first positioning portion 102 is a recess disposed on the base 100, and the second positioning portion 312 is a protrusion disposed at the bottom of the bottom plate 310. Please refer to Figure 6 The shaping plate 320 is mounted on the bottom plate 310, and at least one of the bottom plate 310 and the shaping plate 320 is provided with a positioning guide hole 321, for example, the bottom plate 310 is provided with a positioning guide hole 321, or for example, the shaping plate 320 is provided with a positioning guide hole 321, or for example, the bottom plate 310 and the shaping plate 320 are both provided with a positioning guide hole 321, please refer to Figure 2 and Figure 6 The positioning guide hole 321 cooperates with the positioning guide column 231 to form a positioning guide structure. The shaping plate 320 is used to shape the target product, wherein the pressing member 330 is movably mounted on the bottom plate 310 and can cooperate with the first side of the shaping plate 320 to form a first product limiting structure. Please refer to Figure 1 , Figure 8 and Fig. 9 The anti-foolproof slider 340 is slidably installed in the guide hole 311 and partially penetrates into the first avoidance position 103. The anti-foolproof slider 340 has a first working position and a second working position. In the first working position, the anti-foolproof slider 340 and the anti-foolproof matching part form an anti-foolproof structure; in the second working position, the anti-foolproof slider 340 avoids the anti-foolproof matching part and is clamped on the clamping flange 104 and cooperates with the second side of the shaping plate 320 to form a second product limiting structure.

[0041] Before testing the target product, pre-load the target product into the quick-change fixture 300. Please refer to Fig.10The target product is a cable with a 180° bending structure. The target product is initially shaped by the shaping plate 320 of the quick-change fixture 300, and the target product is pressed and fixed from the second side of the shaping plate 320 by the pressing member 330. For example, the first product gap (such as Figure 6 or Fig. 9 As shown in the figure marked P2), it is suitable for placing the first part of the target product (such as Fig.10 As shown by the mark L1 in the figure, the shaping plate 320 is suitable for placing the second part of the target product (such as Fig.10 In the placement process, the first part of the target product is inserted into the first product gap from front to back, and the second part of the target product is bent and placed after passing the shaping plate 320 from the side of the shaping plate 320 (as shown in the mark L2 in the figure). Fig.10 Insert the part marked L3 into Figure 6 or Fig. 9 The target product is positioned at the position indicated by the mark P3 in the figure, that is, the shaping plate 320 is located between the first part and the second part of the target product, so as to support and shape the target product. In order to prevent the target product from rebounding or loosening, the pressing member 330 cooperates with the first side of the shaping plate 320 to form a first product limiting structure, which can limit and fix the target product.

[0042] Please refer to Figure 1 and Figure 7 When testing is required, the quick-change fixture 300 pre-loaded with the target product is installed in the fixture positioning slot 101 of the base 100. During the installation process, the quick-change fixture 300 and the base 100 are positioned by the second positioning portion 312 and the first positioning portion 102 to improve the convenience and accuracy of installation, so that the test point of the target product is located at or close to the expected position. When the quick-change fixture 300 is installed in the fixture positioning slot 101, the anti-foolproofing slider 340 of the quick-change fixture 300 can be partially inserted into the first avoidance position 103 of the base 100, and the anti-foolproofing slider 340 is in the first working position. In this working position, the anti-foolproofing slider 340 is located on the movement path of the probe flap 200, and the anti-foolproofing matching portion (such as the anti-foolproofing slider 340 and the probe flap 200) of the anti-foolproofing slider 340 is connected to the probe flap 200. Figure 2The probe flip cover 200 is prevented from closing by interfering with the probe module 240 and the quick-change fixture 300 (as indicated by the mark P1), thereby preventing abnormal contact between the probe module 240 and the quick-change fixture 300 (i.e., the contact position is not the predetermined test point), thereby protecting the probe module 240, wherein one side edge of the cover 210 can be used as an anti-foolproof fitting portion, i.e., the anti-foolproof slider 340 can interfere with the edge of the cover 210 in the first working position; or, one side edge of the cover 210 is provided with an anti-foolproof fitting portion, for example, the edge of the cover 210 is provided with an anti-foolproof protrusion (not shown) used as an anti-foolproof fitting portion, and the anti-foolproof slider 340 can interfere with the anti-foolproof protrusion. Next, the anti-foolproof slider 340 is moved to make the anti-foolproof slider 340 move along the guide hole 311, and the anti-foolproof slider 340 switches from the first working position to the second working position (please refer to Figure 2 ), at this time, the anti-foolproof slider 340 avoids the anti-foolproof mating part of the probe flap 200, and the anti-foolproof slider 340 can be engaged with the engaging flange 104 of the base 100, thereby fixing the quick-change fixture 300 on the base 100, avoiding the displacement of the quick-change fixture 300 due to misoperation during the test process, thereby causing damage to the probe module 240 or poor testing. In addition, the anti-foolproof slider 340 can also cooperate with the second side of the shaping plate 320 to form a second product limiting structure, thereby limiting and shaping the target product. Next, please refer to Figure 2 and Figure 3 , the probe flap 200 is covered on the fixture positioning groove 101. During the covering process, the positioning guide hole 321 guides the positioning guide column 231 to position and guide the floating plate 220 through the positioning guide column 231, so that the position of the probe module 240 can be well adapted to the position of the quick-change fixture 300, so that the probe module 240 and the test point of the target product are accurately aligned. The limit lock structure 110 on the base 100 cooperates and fixes with the probe flap 200 to prevent the probe flap 200 from displacement during the test and to maintain good contact between the probe and the test point, which is conducive to improving the reliability of the test. It is worth mentioning that the anti-fool slide 340 can cooperate with the probe flap 200 for anti-fool, and can also cooperate with the clamping flange 104 of the base 100 to achieve the locking of the quick-change fixture 300, and can also cooperate with the second side of the shaping plate 320 to press the target product. It has a simple structure but diverse functions, which is conducive to realizing a miniaturized design.

[0043] Therefore, through the floating connection between the floating plate 220 and the cover plate 210, the position of the probe module 240 is adjustable, and the positioning guide is performed through the positioning guide hole 321 and the positioning guide column 231, so that the position of the probe module 240 is adapted to the quick-change fixture 300, thereby improving the alignment accuracy of the probe and the test point; the anti-foolproof mating part of the cover plate 210 and the anti-foolproof slider 340 cooperate to form an anti-foolproof structure, which can reduce the probability of damage to the probe module 240 due to operational errors. The anti-foolproof slider 340 can also be clamped on the clamping flange 104 to fix the quick-change fixture 300, reduce the probability of erroneous operation, and cooperate with the shaping plate 320 to form a second product limiting structure, thereby limiting and fixing the product, with a simple structure and diverse functions.

[0044] Please refer to Figure 1 and Figure 2 A hand position 105 is provided at the edge of the base 100 and at the first side of the fixture positioning groove 101. In this embodiment, the hand position 105 is a notch provided at the edge of the base 100. When the quick-change fixture 300 needs to be installed on or removed from the base 100, the hand position 105 can avoid the operator's hand, thereby improving the convenience of loading and unloading the quick-change fixture 300.

[0045] Please refer to Figure 1 and Figure 2 A first elastic pressing member 120 is provided on the base 100 and located on the second side of the fixture positioning groove 101. The first elastic pressing member 120 can abut against the quick-change fixture 300. As mentioned above, the base 100 and the quick-change fixture 300 achieve rapid positioning and installation of the quick-change fixture 300 through the cooperation of the first positioning portion 102 and the second positioning portion 312. It was found in the experiment that there is a redundant gap between the first positioning portion 102 and the second positioning portion 312. For example, when the first positioning portion 102 is a convex column and the second positioning portion 312 is a concave hole, the outer diameter of the convex column is smaller than the inner diameter of the concave hole, so that a redundant gap, that is, a loose space, is left between the outer wall of the convex column and the inner wall of the concave hole to facilitate the socket connection between the concave hole and the convex column. However, in occasional situations, the redundant gap between the first positioning portion 102 and the second positioning portion 312 may cause the probe and the test point to be misaligned. For this reason, by providing a first elastic pressing member 120, it is possible to abut against the quick-change fixture 300, thereby pushing the quick-change fixture 300 to a predetermined position, reducing the displacement space of the quick-change fixture 300, and thereby improving the alignment accuracy of the probe and the test point. In this embodiment, the first side and the second side of the fixture positioning groove 101 are adjacent sides. Of course, in some application examples, the first side and the second side of the fixture positioning groove 101 may be opposite sides. When the quick-change fixture 300 is installed in the fixture positioning groove 101, the first elastic pressing member 120 applies a pressing force to the quick-change fixture 300, thereby ensuring that the quick-change fixture 300 is installed in place.

[0046] Please refer to Figure 1 and Fig.11 The first elastic pressing member 120 includes a first assembly structure 121, a first pressing block 122 and a second elastic member 123. The first assembly structure 121 is provided with a first guide cavity 1211. The first pressing block 122 is movably installed in the first guide cavity 1211 and can partially extend out of the first guide cavity 1211 to abut against the quick-change fixture 300. The second elastic member 123 is installed in the first guide cavity 1211 and abuts against the first pressing block 122. The first assembly structure 121 can be a shell installed on the base 100, or the first assembly structure 121 can be a structure processed on the base 100. When the quick-change fixture 300 is installed in the fixture positioning groove 101, the quick-change fixture 300 abuts against the first pressing block 122, so that the first pressing block 122 compresses the second elastic member 123, and the second elastic member 123 provides a continuous elastic force for the first pressing block 122, so that the first pressing block 122 keeps pressing the quick-change fixture 300, thereby fixing the quick-change fixture 300 in a predetermined position. The second elastic member 123 is a spring, and the end of the first pressing block 122 is provided with a guide structure such as a rounded structure or an oblique angle structure, so that the quick-change fixture 300 abuts against the first pressing block 122 when it is placed in the fixture positioning groove 101.

[0047] Please refer to Figure 5 and Fig.12 , the cover plate 210 is provided with a plurality of limiting posts 2121, the floating plate 220 is provided with a plurality of limiting holes 221, the floating plate 220 is sleeved on the plurality of limiting posts 2121 of the cover plate 210 through the plurality of limiting holes 221, and a fine-tuning gap is provided between the inner wall of the limiting hole 221 and the limiting post 2121. Exemplarily, the floating plate 220 is a rectangular parallelepiped structure, and the limiting holes 221 are provided at the four corners of the floating plate 220. Accordingly, four limiting posts 2121 are provided on the cover plate 210, wherein the limiting posts 2121 are fasteners such as screws or bolts, and the aperture of the limiting hole 221 is slightly larger than the diameter of the limiting post 2121, so that a fine-tuning gap is provided between the inner wall of the limiting hole 221 and the limiting post 2121, so that the floating plate 220 can move relative to the cover plate 210 in different directions.

[0048] Please refer to Figure 4 and Figure 5, a limit frame 2111 is set on the cover plate 210 and located on the opposite sides of the floating plate 220, and limit rollers 222 are installed on the opposite sides of the floating plate 220, and the limit rollers 222 are located in the limit frame 2111, and a first elastic member is connected between the cover plate 210 and the floating plate 220, and the first elastic member is a spring. The first elastic member can apply an elastic force to the floating plate 220, so that the floating plate 220 has a tendency to move away from the cover plate 210, and the cooperation of the limit roller 222 and the limit frame 2111 can keep a certain distance between the floating plate 220 and the cover plate 210, and can avoid the end of the limit column 2121 directly limiting the floating plate 220, and the friction between the limit roller 222 and the limit frame 2111 is rolling friction, and the friction force is small, which is conducive to reducing the friction force on the floating plate 220, so that the floating plate 220 and the cover plate 210 can move relative to each other more easily, so that the probe module 240 can perform fine position adjustment. Wherein, both the cover plate 210 and the floating plate 220 are provided with blind holes, and the first elastic member is installed in the blind holes.

[0049] Please continue to refer to Figure 4 and Figure 5 The cover plate 210 includes a first carrier frame 211 and a second carrier frame 212 which are nested with each other. One side edge of the first carrier frame 211 is used as or provided with a foolproof mating portion. There is a distance difference (such as Figure 4 The bottom surface of the first carrier frame 211 and the bottom surface of the second carrier frame 212 are both oriented toward the quick-change fixture 300 in the rotation direction of the cover plate 210. For example, the cover plate 210 can be rotated counterclockwise to cover the fixture positioning groove 101. Figure 4From the perspective of the first carrier frame 211 and the second carrier frame 212, the bottom surfaces of the first carrier frame 211 and the second carrier frame 212 face the quick-change fixture 300. The first carrier frame 211 and the second carrier frame 212 are both rectangular parallelepiped structures. The middle of the first carrier frame 211 is hollowed out to leave a frame. The second carrier frame 212 is sleeved in the middle of the first carrier frame 211. During the rotation process, one side edge of the first carrier frame 211 is used as or provided with an anti-foolproof mating portion, that is, the edge of the first carrier frame 211 can interfere with the anti-foolproof slider 340. There is a distance difference between the bottom surface of the first carrier frame 211 and the bottom surface of the second carrier frame 212, that is, the bottom surface of the first carrier frame 211 and the bottom surface of the second carrier frame 212 are not flush. When the anti-fool slide 340 is in the first working position, the anti-fool slide 340 can interfere with the edge of the first carrier frame 211, thereby playing an anti-fool role; when the anti-fool slide 340 is switched to the second working position, the anti-fool slide 340 is staggered with the edge of the first carrier frame 211, and the position of the anti-fool slide 340 is adapted to the second carrier frame 212. Since there is a distance difference between the bottom surface of the first carrier frame 211 and the bottom surface of the second carrier frame 212, the anti-fool slide 340 will not abut against the bottom surface of the second carrier frame 212, that is, the second carrier frame 212 will not interfere with the anti-fool slide 340, and the probe flip cover 200 can be smoothly covered. Among them, the limit column 2121 is installed on the second carrier frame 212, and the limit frame 2111 is installed on the first carrier frame 211.

[0050] Please refer to Figure 4 , a sheath 232 is movably mounted on the carrier plate 230, and a third elastic member is connected between the carrier plate 230 and the sheath 232, and the sheath 232 is sleeved on the probe module 240. Before the probe flip cover 200 is not connected to the limit lock structure 110, the sheath 232 is sleeved on the outside of the probe module 240 to protect the probe module 240. When the probe flip cover 200 is in a fully covered state and connected to the limit lock structure 110, the end of the sheath 232 abuts against the target product. Under the reaction force of the target product, the sheath 232 compresses the third elastic member to expose the probe module 240, so that the probe module 240 can contact the test point of the target product. In this way, the probe module 240 can be protected by the sheath 232, reducing the probability of the probe module 240 being damaged due to misoperation. Among them, the third elastic member is a spring.

[0051] Please refer to Figure 6 , Figure 7 and Fig. 9The fool-proof slider 340 is provided with a fool-proof convex portion 341, a first crimping portion 342 and a clamping portion 343. The fool-proof convex portion 341 and the first crimping portion 342 are both located on the upper side of the bottom plate 310, and the clamping portion 343 is located on the lower side of the bottom plate 310. In the first working position, the fool-proof convex portion 341 and the fool-proof matching portion form a fool-proof structure. In the second working position, the clamping portion 343 and the bottom plate 310 are respectively located on the opposite sides of the clamping flange 104 (such as Figure 1 The upper and lower sides shown in the figure are clamped to the clamping flange 104, and the first crimping portion 342 cooperates with the second side of the shaping plate 320 to form a second product limiting structure. The structure of the foolproof slider 340 is simple, but it can not only realize the foolproof function to prevent the probe module 240 from being damaged due to misoperation, but also realize the clamping and fixing between the quick-change fixture 300 and the base 100 to prevent the quick-change fixture 300 from being displaced due to misoperation and causing damage to the probe module 240 or poor contact, and can also cooperate with the shaping plate 320 to clamp and fix the target product so that the target product can be shaped.

[0052] Please refer to Figure 6 and Figure 8 A second elastic pressing member 350 is disposed on the bottom plate 310 and located on the first side of the shaping plate 320. The second elastic pressing member 350 cooperates with the side wall of the shaping plate 320 (such as Figure 6 When the target product is placed on the shaping plate 320 for preliminary shaping, the second elastic pressing member 350 can adjust the bending position of the target product (such as Fig.10 The second elastic pressing member 350 is a passive pressing structure, which does not require manual active operation and is easy to use.

[0053] Please refer to Figure 8 and Fig. 9 The second elastic pressing member 350 includes a second assembly structure 351, a second pressing block 352 and a fourth elastic member 353. The second assembly structure 351 is provided with a second guide cavity (such as Fig. 9As shown by the mark Z1 in the figure, the second pressing block 352 is movably installed in the second guide cavity and can partially extend out of the second guide cavity to abut against the shaping plate 320, and the fourth elastic member 353 is installed in the second guide cavity and abuts against the second pressing block 352. Among them, the second assembly structure 351 can be a shell installed on the bottom plate 310, or the second assembly structure 351 can be a structure processed on the bottom plate 310. When the target product is preliminarily shaped by the shaping plate 320, the bending position of the target product abuts the second pressing block 352, so that the second pressing block 352 compresses the fourth elastic member 353, and the fourth elastic member 353 provides continuous elastic force for the second pressing block 352, so that the second pressing block 352 maintains the pressing of the bending position of the target product. Among them, the fourth elastic member 353 adopts a spring, and the end of the second pressing block 352 is provided with a guide structure such as a rounded structure or an oblique structure, so that the target product can be inserted into the gap between the second pressing block 352 and the shaping plate 320.

[0054] Please refer to Figure 6 , the second elastic pressing member 350 is located on the movement path of the pressing member 330 to provide support for the pressing member 330. The second elastic pressing member 350 and the pressing member 330 are both provided with magnetic members, and the pressing member 330 can be magnetically connected to the second elastic pressing member 350. In some application examples, the pressing member 330 is rotatably connected to the bottom plate 310. After the target product is placed on the shaping plate 320 for preliminary shaping, the pressing member 330 is manually rotated so that the pressing member 330 presses the target product from above. Since the second elastic pressing member 350 is located on the movement path of the pressing member 330, when the pressing member 330 rotates to a predetermined angle position, the pressing member 330 abuts against the second elastic pressing member 350 so that the pressing member 330 cannot rotate further, thereby preventing the manual rotation of the pressing member 330 from being too strong and causing the target workpiece to be subjected to excessive pressure, thereby achieving the effect of protecting the target product. In this way, the second elastic pressing member 350 can set the pressing gap between the pressing member 330 and the shaping plate 320 to a preset width to meet the pressing requirements of the target product and prevent the target product from being damaged due to excessive pressing force. The second elastic pressing member 350 and the pressing member 330 are both provided with magnetic suction members, and the pressing member 330 can be adsorbed on the second elastic pressing member 350 by magnetic suction to keep the pressing member 330 continuously pressing the target product. Exemplarily, the second assembly structure 351 of the second elastic pressing member 350 can be made of or provided with a magnetic conductive material (such as iron), and the pressing member 330 is provided with a magnet, and the magnet and the magnetic conductive material are attracted to each other; or, the second assembly structure 351 of the second elastic pressing member 350 is provided with a magnet, and the pressing member 330 is made of or provided with a magnetic conductive material; or, the second assembly structure 351 of the second elastic pressing member 350 is provided with a first magnet, and the pressing member 330 is provided with a second magnet, and the first magnet and the second magnet can be adsorbed to each other.

[0055] It is worth mentioning that please refer to Figure 2 The positions of the clamping member 330 and the second elastic pressing member 350 are adapted to the buckle position 105 of the base 100. When the quick-change clamp 300 needs to be installed on the base 100, when the operator manually takes the quick-change clamp 300, the operator's thumb presses on the clamping member 330, and the operator's other fingers can clamp from the bottom of the base plate 310 of the quick-change clamp 300. In this way, in the process of taking the quick-change clamp 300, it can be ensured that the clamping member 330 always keeps pressing on the target product to prevent the target product from being deformed during installation. In this process, the second elastic pressing member 350 provides reverse support force for the clamping member 330 to prevent the clamping member 330 from applying excessive pressure on the target product and damaging the target product. When the quick-change fixture 300 is placed in the fixture positioning groove 101 of the base 100 , the hand-locking position 105 on the base 100 can avoid the operator's fingers to facilitate the placement of the quick-change fixture 300 .

[0056] For some application examples, see Figure 8 and Fig. 9 The pressing member 330 is provided with a first connection part 331, a second connection part 332 and a second crimping part 333. The first connection part 331 is rotatably connected to the bottom plate 310. The first end of the second connection part 332 is connected to the first connection part 331. The second end of the second connection part 332 is connected to the second crimping part 333. The length direction of the second crimping part 333 is perpendicular to the length direction of the second connection part 332. The second crimping part 333 cooperates with the shaping plate 320 to form a first product limiting structure. The length direction between the first connection part 331 and the second crimping part 333 can be changed through the second connection part 332, and the installation position of the second elastic top pressing member 150 can be avoided to save installation space. Alternatively, in some other application examples (this example is not shown in the figure), the first connecting part 331 is vertically installed on the base plate 310, and the second connecting part 332 is slidably connected to the first connecting part 331, thereby realizing the lifting and lowering movement of the second crimping part 333, and further realizing the lifting and lowering connection between the clamping member 330 and the base plate 310.

[0057] Please refer to Figure 1 and Figure 2A second avoidance position 106 is provided on the base 100 and adjacent to the fixture positioning groove 101. An interface assembly 130 is installed in the second avoidance position 106. The interface assembly 130 can move toward or away from the fixture positioning groove 101. The interface assembly 130 is adapted to the signal interface on the target product. After the quick-change fixture 300 is installed in the fixture positioning groove 101, the probe flap 200 is closed, and the interface assembly 130 moves toward the direction close to the fixture positioning groove 101, so as to dock with the signal interface on the target product. The second avoidance position 106 is used to provide space for the installation and movement of the interface assembly 130.

[0058] For example, please refer to Figure 2 The interface assembly 130 includes an interface module 131, a connector 132, a driver 133 and a slide rail module 134. The interface module 131 is mounted on the connector 132. The slide rail module 134 is mounted on the base 100 and is located on one side of the second avoidance position 106. The connector 132 is connected to the driver 133 and the slide rail module 134 respectively. The driver 133 is a cylinder or a motor. The slide rail module 134 includes a slide rail and a slider mounted on the slide rail. The slide rail is mounted on the base 100. The driver 133 is used to drive the connector 132 to move under the guidance of the slide rail module 134, so that the interface module 131 can be docked with a signal interface on the target product. The interface module 131 includes a circuit board and an interface device connected to the circuit board.

[0059] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A cable test fixture, characterized in that: include: The base (100) is provided with a clamp positioning groove (101) and a limit lock structure (110), wherein a first positioning portion (102) and a first avoidance position (103) are provided in the clamp positioning groove (101), and a clamping flange (104) is provided on the inner wall of the first avoidance position (103); A probe flip cover (200) having a first end and a second end, wherein the first end of the probe flip cover (200) is connected to the base (100), and the second end of the probe flip cover (200) can rotate relative to the base (100) around the first end and is movably connected to the limit lock structure (110) so as to cover the fixture positioning groove (101). The probe flip cover (200) comprises a cover plate (210), a floating plate (220), a bearing plate (230) and a probe module (240), wherein a side edge of the cover plate (210) is used as or provided with a foolproof matching portion, the floating plate (220) is floatingly connected to the cover plate (210), the bearing plate (230) is connected to the floating plate (220), the probe module (240) is mounted on the bearing plate (230), and a positioning guide column (231) is provided on the bearing plate (230); A quick-change fixture (300) is detachably mounted in the fixture positioning groove (101), the quick-change fixture (300) comprising a base plate (310), a shaping plate (320), a pressing member (330) and an anti-fool slide block (340), the base plate (310) being provided with a guide hole (311) and a second positioning portion (312), the second positioning portion (312) and the first positioning portion (102) cooperating to form a positioning structure, the shaping plate (320) being mounted on the base plate (310), at least one of the base plate (310) and the shaping plate (320) being provided with a positioning guide hole (321), the positioning guide hole (321) cooperating with the positioning guide column (231) to form a positioning guide The structure comprises: the pressing member (330) is movably mounted on the bottom plate (310) and can cooperate with the first side of the shaping plate (320) to form a first product limiting structure; the anti-foolproofing slider (340) is slidably mounted on the guide hole (311) and partially penetrates into the first avoidance position (103); the anti-foolproofing slider (340) has a first working position and a second working position; in the first working position, the anti-foolproofing slider (340) and the anti-foolproofing matching part form an anti-foolproofing structure; in the second working position, the anti-foolproofing slider (340) avoids the anti-foolproofing matching part and is clamped on the clamping flange (104) and cooperates with the second side of the shaping plate (320) to form a second product limiting structure.

2. The cable test fixture according to claim 1, characterized in that: A hand-gripping position (105) is provided at the edge of the base (100) and located on the first side of the clamp positioning groove (101).

3. The cable test fixture according to claim 1 or 2, characterized in that: A first elastic pressing member (120) is provided on the base (100) and located on the second side of the clamp positioning groove (101), and the first elastic pressing member (120) can abut against the quick-change clamp (300).

4. The cable test fixture according to claim 1, characterized in that: The cover plate (210) is provided with a plurality of limiting columns (2121), the floating plate (220) is provided with a plurality of limiting holes (221), the floating plate (220) is sleeved on the plurality of limiting columns (2121) of the cover plate (210) through the plurality of limiting holes (221), and a fine-tuning gap is provided between the inner wall of the limiting hole (221) and the limiting column (2121).

5. The cable test fixture according to claim 4, characterized in that: A limit frame (2111) is provided on the cover plate (210) and located on two opposite sides of the floating plate (220); limit rollers (222) are installed on two opposite sides of the floating plate (220); the limit rollers (222) are located in the limit frame (2111); and a first elastic member is connected between the cover plate (210) and the floating plate (220).

6. The cable test fixture according to claim 1, 4 or 5, characterized in that: The cover plate (210) comprises a first supporting frame (211) and a second supporting frame (212) which are nested with each other, a side edge of the first supporting frame (211) is used as or provided with the foolproof mating portion, a distance difference is provided between the bottom surface of the first supporting frame (211) and the bottom surface of the second supporting frame (212) to form a foolproof avoidance position, and the bottom surface of the first supporting frame (211) and the bottom surface of the second supporting frame (212) are both facing the quick-change clamp (300) in the rotation direction of the cover plate (210).

7. The cable test fixture according to claim 1, characterized in that: The anti-foolproof slider (340) is provided with an anti-foolproof protrusion (341), a first crimping portion (342) and a clamping portion (343); the anti-foolproof protrusion (341) and the first crimping portion (342) are both located on the upper side of the bottom plate (310); the clamping portion (343) is located on the lower side of the bottom plate (310); in the second working position, the clamping portion (343) and the bottom plate (310) are respectively located on opposite sides of the clamping flange (104) to be clamped to the clamping flange (104); the first crimping portion (342) cooperates with the second side of the shaping plate (320) to form the second product limiting structure.

8. The cable test fixture according to claim 1 or 7, characterized in that: A second elastic pressing member (350) is provided on the bottom plate (310) and located on the first side of the shaping plate (320), and the second elastic pressing member (350) cooperates with the side wall of the shaping plate (320) to form a third product limiting structure.

9. The cable test fixture according to claim 8, characterized in that: The second elastic pressing member (350) is located on the movement path of the pressing member (330), and both the second elastic pressing member (350) and the pressing member (330) are provided with magnetic members, so that the pressing member (330) can be magnetically connected to the second elastic pressing member (350).

10. A testing device, characterized in that: It comprises the cable testing fixture as described in any one of claims 1 to 9.

Images